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WO2019188365A1 - Dispositif de soufflante pour la climatisation d'un véhicule - Google Patents

Dispositif de soufflante pour la climatisation d'un véhicule Download PDF

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Publication number
WO2019188365A1
WO2019188365A1 PCT/JP2019/010656 JP2019010656W WO2019188365A1 WO 2019188365 A1 WO2019188365 A1 WO 2019188365A1 JP 2019010656 W JP2019010656 W JP 2019010656W WO 2019188365 A1 WO2019188365 A1 WO 2019188365A1
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WO
WIPO (PCT)
Prior art keywords
air
blower
blade
vehicle
plate portion
Prior art date
Application number
PCT/JP2019/010656
Other languages
English (en)
Japanese (ja)
Inventor
米原　真司
伯方　俊樹
武史 田中
Original Assignee
株式会社日本クライメイトシステムズ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日本クライメイトシステムズ filed Critical 株式会社日本クライメイトシステムズ
Publication of WO2019188365A1 publication Critical patent/WO2019188365A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps

Definitions

  • the present invention relates to a vehicle air-conditioning blower that is mounted on, for example, an automobile and blows air for air-conditioning, and particularly belongs to the technical field of a structure capable of simultaneously blowing air in a vehicle interior and air outside the vehicle interior.
  • an air conditioner mounted on a vehicle selects one of air in the vehicle interior (inside air) and air outside the vehicle interior (outside air) and blows it as air-conditioning air, a cooling heat exchanger and a heating heat exchanger. After the temperature is adjusted by the above, it is configured to be supplied to each part of the passenger compartment.
  • the casing of the air conditioning device for vehicle air conditioning has an inside air introduction port and an outside air introduction port, and an upper air passage and a lower air passage.
  • a blower fan is provided in each of the upper air passage and the lower air passage, and these two blower fans are driven by a common motor.
  • the casing is provided with an inside / outside air switching damper for opening and closing the inside air introduction port and the outside air introduction port, the inside air circulation mode for opening only the inside air introduction port by the inside / outside air switching damper, the outside air introduction mode for opening only the outside air introduction port, The inside / outside air two-layer flow mode that opens the inside air introduction port and the outside air introduction port can be switched.
  • the inside air introduced from the inside air introduction port flows into the upper air passage and the lower air passage, and when the outside air introduction mode is set, the upper air passage and the lower air passage.
  • the outside air introduced from the outside air introduction port flows and the inside / outside air two-layer flow mode is set, the outside air introduced from the outside air introduction port flows into the upper air passage while the inside air introduced from the inside air introduction port into the lower air passage Flows.
  • the scroll casing that houses the blower fan is composed of an upper scroll casing and a lower scroll casing, and the upper part of the lower scroll casing is fitted to the lower part of the lower scroll casing.
  • the upper scroll casing and the lower scroll casing are integrated.
  • a partition plate extending in the horizontal direction is disposed inside the scroll casing in the middle in the vertical direction, and the interior of the scroll casing is partitioned into an upper air passage and a lower air passage by this partition plate.
  • the peripheral edge of the partition plate is sandwiched between the lower part of the upper scroll casing and the upper part of the lower scroll casing in the vertical direction.
  • the blower fan for realizing the inside / outside air two-layer flow mode is an upper side extending upward from a part called a cone part formed so as to extend from a fixed part fixed to the rotating shaft of the motor to surrounding blades.
  • the lower blade is provided with a blade and a lower blade extending downward, and the air in the upper air passage is sent by the upper blade, and the air in the lower air passage is sent by the lower blade.
  • the lower end of the upper blade and the upper end of the lower blade are not mixed with the air in the upper air passage and the air in the lower air passage. Need to be separated in the vertical direction to form a gap between them.
  • the rigidity of the blower fan is reduced, which may cause deformation and breakage of the upper blades.
  • the present invention has been made in view of the above points, and an object of the present invention is to improve the stability during rotation of the blower fan for realizing the inside / outside air two-layer flow mode, and to blow the fan. It is to prevent the blade from being deformed or broken in advance.
  • the first invention is provided with an inside air introduction port for introducing air inside the vehicle interior and an outside air introduction port for introducing air outside the vehicle compartment, and the inside air introduction port and the outside air introduction port are formed.
  • the blower fan includes: a centrifugal blower fan having a first blade and a second blade that are long in the vertical direction; and a motor having a rotating shaft that extends in the vertical direction and rotationally drives the blower fan.
  • the air in the first air passage is blown as air-conditioning air by the first blade
  • the air in the second air passage is blown as air-conditioning air by the second blade of the blower fan.
  • the blower fan is disposed on the upper side of the motor, and the blower fan is fixed to the rotating shaft, and the fixed part is fixed to the fixed part.
  • a cone portion that extends in the radial direction of the rotating shaft and is recessed downward so that the fixed portion side is positioned below, and the outer peripheral portion of the cone portion extends in the radial direction of the rotating shaft.
  • the extending portion includes a vertical plate portion protruding in one of the vertical directions, and a horizontal plate portion extending in the radial direction of the rotating shaft from the protruding end portion of the vertical plate portion.
  • the longitudinal end of one of the first and second blades is coupled to the horizontal plate, and the longitudinal end of the other blade is the vertical plate in the extension. It is characterized by being coupled to the surface opposite to the protruding direction.
  • the inside air circulation mode in which the inside air is introduced from the inside air introduction port is set.
  • the inside air circulation mode when the blower fan rotates, the inside air introduced from the inside air introduction port flows through the first air passage and the second air passage by the first blade and the second blade and is blown as air-conditioning air.
  • the outside air introduction mode in which outside air is introduced from the outside air introduction port is set.
  • the blower fan rotates, so that outside air introduced from the outside air introduction port flows through the first air passage and the second air passage and is blown as air-conditioning air. Furthermore, when the inside air introduction port and the outside air introduction port are opened by the operation of the inside / outside air switching damper, the inside / outside air two-layer flow mode is set, and the blower fan rotates so that the outside air introduced from the outside air introduction port is the first air.
  • the inside air introduced from the inside air introduction port flows through one of the passage and the second air passage, and flows through the other to be blown as air for air conditioning. That is, the air can be blown by switching to any mode among the outside air introduction mode, the inside air circulation mode, and the inside / outside air two-layer flow mode.
  • the cone part of the blower fan is shaped to be depressed downward so that the fixed part side is positioned below, the rotation axis of the motor is shortened, and the blower fan is rotated. Increased stability.
  • the extended portion of the cone portion is provided with a vertical plate portion protruding in the vertical direction and a horizontal plate portion extending in the radial direction from the end portion of the vertical plate portion. It will be reinforced by the plate part. Since the end portions of the first blade and the second blade are coupled to the reinforced portion, a reduction in rigidity of the blower fan is suppressed.
  • first blade and the second blade are coupled to the horizontal plate portion and the other blade is coupled to the extending portion.
  • first blade and the second blade are separated in the vertical direction.
  • a gap is formed between the first blade and the second blade. This makes it difficult for the air in the first air passage and the air in the second air passage to mix.
  • the vertical plate portion protrudes downward from the extending portion, and the horizontal plate portion extends in a radial direction of the rotary shaft from a lower end portion of the vertical plate portion,
  • the first blade is formed such that a lower end portion is coupled to the upper surface of the extending portion and extends upward, and the second blade is configured such that the upper end portion is coupled to the lower surface of the horizontal plate portion and extends downward. It is characterized by being formed.
  • the horizontal plate portion is located below the extension portion, the first blade is coupled to the extension portion, and the second blade is coupled to the horizontal plate portion.
  • a gap can be formed between the first blade and the second blade.
  • the vertical plate portion protrudes upward from the extension portion, and the horizontal plate portion extends in a radial direction of the rotary shaft from an upper end portion of the vertical plate portion,
  • the first blade is formed such that a lower end portion is coupled to the upper surface of the horizontal plate portion and extends upward, and the second blade is configured such that an upper end portion is coupled to the lower surface of the extension portion and extends downward. It is characterized by being formed.
  • the horizontal plate portion is located above the extension portion, the first blade is coupled to the horizontal plate portion, and the second blade is coupled to the extension portion.
  • a gap can be formed between the first blade and the second blade.
  • the fourth invention is characterized in that, in the second invention, the vertical plate portion protrudes from a portion where the radially inner end portion of the first blade in the extending portion is coupled.
  • the vicinity of the portion where the radially inner end portion of the first blade in the extension portion is coupled has increased rigidity due to the coupling of the first blade, and the vertical plate portion protrudes from the highly rigid portion. By doing so, the rigidity is further improved.
  • the fifth invention is characterized in that, in the second invention, the vertical plate portion protrudes from a portion where the radial intermediate portion of the first blade in the extending portion is coupled.
  • the vicinity of the portion where the radial intermediate portion of the first blade in the extension portion is coupled is increased in rigidity by the coupling of the first blade, and the vertical plate portion is protruded from the highly rigid portion. As a result, the rigidity is further improved.
  • the blower fan is integrally formed of a resin material, and the horizontal plate portion, the extending portion, and the vertical plate portion are arranged radially outward of the rotary shaft. An open space is formed.
  • a partition plate for partitioning the interior of the casing into the first air passage and the second air passage is disposed in the casing, and the partition plate Is formed with a through-hole into which the blower fan is inserted from one of the first air passage and the second air passage toward the other, and the height of the peripheral edge of the through-hole is the extension portion and It is the same as the height of the intermediate portion in the vertical direction of the horizontal plate portion.
  • the height of the peripheral portion of the through hole of the partition plate and the height of the extending portion of the blower fan and the intermediate portion in the vertical direction of the horizontal plate portion coincide with each other.
  • the air in the two air passages becomes even more difficult to mix.
  • the horizontal plate portion extends radially outward of the rotary shaft, and a radial outer end portion of the rotary shaft in the horizontal plate portion is in the extended portion.
  • the rotating shaft extends outward from the radially outer end of the rotating shaft.
  • the fixed portion is provided so as to protrude to the inside of the cone portion, and the inner side of the cone portion is connected to an outer peripheral surface of the fixed portion, A rib extending in the radial direction is provided.
  • the radially inner side of the cone portion is reinforced by the rib.
  • the rotation shaft of the motor can be shortened and the stability during rotation of the blower fan can be increased.
  • a vertical plate portion and a horizontal plate portion are provided in the extending portion of the outer peripheral portion of the cone portion, and the end portion of one of the first blade and the second blade is coupled to the horizontal plate portion, and the longitudinal direction of the other blade Since the end portion of the fan is coupled to the surface of the extending portion opposite to the protruding direction of the vertical plate portion, the rigidity of the blower fan can be secured, and the blades can be prevented from being deformed or broken. it can.
  • the first blade is coupled to the extension portion, and the second blade is coupled to the horizontal plate portion.
  • a gap can be formed between the first blade and the second blade.
  • the horizontal plate portion is located above the extension portion, the first blade is connected to the horizontal plate portion, and the second blade is connected to the extension portion.
  • a gap can be formed between the first blade and the second blade.
  • the vicinity of the portion where the radially inner end of the first blade in the extending portion is coupled is increased in rigidity by the coupling of the first blade, and the vertical plate portion extends from this highly rigid portion.
  • the rigidity can be further improved to prevent the blade from being deformed or broken.
  • the vicinity of the portion where the radial intermediate portion of the first blade in the extension portion is coupled is increased in rigidity by the coupling of the first blade, and the vertical plate portion is moved from the highly rigid portion.
  • the rigidity can be further improved to prevent the blades from being deformed or broken.
  • the space formed by the horizontal plate portion, the extending portion, and the vertical plate portion is opened outward in the radial direction, it is possible to avoid complication of the mold structure when forming the blower fan. And cost can be reduced.
  • the seventh aspect since the height of the peripheral edge portion of the through hole of the partition plate and the height of the extending portion of the blower fan and the intermediate portion in the vertical direction of the horizontal plate portion coincide with each other, the air in the first air passage And the air in the second air passage are less likely to be mixed, and a sufficient amount of air can be secured.
  • the radial positions of the blades coupled to the horizontal plate portion and the blades coupled to the extending portion can be easily changed.
  • the radial inner side of the cone portion can be reinforced, and the rigidity of the blower fan is improved overall. Can be increased.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 1. It is a top view of the fan for ventilation.
  • FIG. 6 is a sectional view taken along line VI-VI in FIG. 5.
  • FIG. 7 is a view corresponding to FIG. 6 according to Modification 1 of the embodiment.
  • FIG. 7 is a diagram corresponding to FIG. 6 according to Modification 2 of the embodiment.
  • FIG. 7 is a view corresponding to FIG. 6 according to Modification 3 of the embodiment.
  • FIG. 6 is a view corresponding to FIG. 5 according to Modification 4 of the embodiment.
  • FIG. 6 is a view corresponding to FIG. 6 according to Modification 4 of the embodiment. It is a bottom view of the fan for ventilation concerning modification 4 of an embodiment.
  • 13A is an enlarged view of a part A in FIG. 11
  • FIG. 13B is a view corresponding to FIG. 13A according to the modification 5
  • FIG. 13C is a view corresponding to FIG. 13A according to the modification 6.
  • FIG. 13 is a diagram corresponding to FIG. 12 according to Modification 7 of the embodiment.
  • FIG. 13 is a view corresponding to FIG. 12 according to Modification 8 of the embodiment.
  • FIG. 1 is a view of a vehicle air-conditioning blower 1 according to an embodiment of the present invention as seen from the rear side of the vehicle
  • FIG. 2 is a view of the vehicle air-conditioning blower 1 as seen from the left side
  • FIG. It is the figure which looked at the air blower 1 for vehicle air conditioning from the downward direction.
  • the vehicle air-conditioning blower 1 is disposed, for example, in a passenger compartment of an automobile to blow air-conditioning air, and constitutes a vehicle air-conditioner together with an air conditioning unit and a refrigeration cycle device (not shown).
  • the air conditioning unit includes, for example, a cooling heat exchanger composed of an evaporator of a refrigeration cycle, a heating heat exchanger composed of a heater core, an air mix damper, a blowing direction switching damper, and an air conditioning casing that accommodates these.
  • a cooling heat exchanger composed of an evaporator of a refrigeration cycle
  • a heating heat exchanger composed of a heater core
  • an air mix damper composed of a blowing direction switching damper
  • an air conditioning casing that accommodates these.
  • the air-conditioning air blown from the vehicle air-conditioning blower 1 is introduced into the inside of the air-conditioning casing and passes through the cooling heat exchanger and the heating heat exchanger to be conditioned air at a desired temperature. It is supplied to each part of the passenger compartment according to the blowing mode set by the switching damper.
  • the temperature of the conditioned air is adjusted by the amount of air passing through the heating heat exchanger set by the air mix damper.
  • front side of the vehicle is simply referred to as “front”
  • rear side of the vehicle is simply referred to as “rear”
  • left side of the vehicle is simply referred to as “left”
  • right side of the vehicle is simply referred to as “right”. This is only defined for convenience of explanation, and does not limit the actual use state, installation state, and assembly state.
  • the vehicle air-conditioning blower 1 is housed together with an air-conditioning unit inside an instrument panel provided at a front end portion of a vehicle interior (not shown).
  • the air-conditioning unit is disposed at a substantially central portion in the left-right direction inside the instrument panel, while the vehicle air-conditioning blower 1 is located on the passenger seat side of the air-conditioning unit inside the instrument panel (left side in the case of a right-hand drive vehicle). In the case of a left-hand drive vehicle, it is arranged on the right side).
  • the vehicle air-conditioning blower 1 is arranged on the right side of the vehicle will be described. Detailed description is omitted.
  • the vehicle on which the vehicle air-conditioning blower 1 is provided includes a dash panel (partition member) for partitioning the engine room and the vehicle compartment.
  • the engine room is provided in the front part of the vehicle, and an engine, a transmission, and the like are arranged therein.
  • the dash panel extends substantially in the vertical direction.
  • a cowl extending in the left-right direction is disposed on the upper portion of the dash panel.
  • the cowl is formed with a communication port communicating with the outside of the passenger compartment. Since the cowl is disposed outside the passenger compartment, rainwater, water during car washing, snow, etc. may enter the cowl.
  • the vehicle air conditioning blower 1 includes a blower casing 2, a blower fan 3, a motor 5 for rotationally driving the blower fan 3, a first inside / outside air switching damper 6, A second inside / outside air switching damper 7, an air filter 8, and an inside / outside air switching actuator 9 (shown in FIGS. 1 and 2) are provided.
  • the blower fan 3, the first inside / outside air switching damper 6, the second inside / outside air switching damper 7, and the air filter 8 are accommodated in the blowing casing 2.
  • the front inside air introduction port 2a and the rear inside air introduction port 2b shown in FIG. 2 and the outside air introduction port 2c shown in FIG. 4 are formed on the upper side of the blower casing 2.
  • the front inside air introduction port 2 a is formed at a position closer to the front than the central portion in the front-rear direction on the upper side of the blower casing 2, and opens into the vehicle interior.
  • the rear inside air introduction port 2b is formed at a position closer to the rear than the central portion in the front-rear direction on the upper side of the blower casing 2, and opens into the vehicle interior.
  • Air in the vehicle compartment inside air
  • an outside air introduction duct portion 2 d is formed in the blower casing 2 so as to bulge upward from a portion between the front inside air introduction port 2 a and the rear inside air introduction port 2 b. It is integrally molded.
  • the upper side of the outside air introduction duct portion 2d extends forward.
  • An outside air introduction port 2c is opened at the front end of the outside air introduction duct portion 2d.
  • the outside air introduction duct portion 2d is connected to the cowl, and the outside air introduction port 2c communicates with the outside of the vehicle compartment via the cowl. Air outside the passenger compartment (outside air) can be introduced into the blower casing 2 from the outside air inlet 2c.
  • the filter 8 is accommodated below the front inside air introduction port 2a, the rear inside air introduction port 2b, and the outside air introduction port 2c inside the blower casing 2.
  • the filter 8 is formed in a plate shape and is disposed so as to extend in the horizontal direction.
  • the peripheral portion of the filter 8 is supported by a filter support portion 2 e provided inside the blower casing 2.
  • a filter insertion hole 2 f for inserting the filter 8 into the blower casing 2 is formed in the rear wall portion of the blower casing 2.
  • the filter insertion hole 2 f is closed by a lid portion 8 a provided at the rear end portion of the filter 8.
  • the filter 8 can be comprised with a general nonwoven fabric etc., for example.
  • a partition wall 2g is provided above the filter 8 inside the blower casing 2.
  • the partition wall 2g extends in the vertical direction, and is slightly inclined so as to be positioned closer to the lower end.
  • a first air passage R1 is formed at the front side of the partition wall portion 2g, and a second air passage R2 is formed at the rear side of the partition wall portion 2g.
  • the width in the front-rear direction of the first air passage R1 is set wider than the width in the front-rear direction of the second air passage R2, and the cross-sectional area of the first air passage R1 is wider than the cross-sectional area of the second air passage R2. It has become.
  • the upstream end (upper end) of the first air passage R1 communicates with the front inside air inlet 2a and the outside air inlet 2c.
  • the upstream end (upper end) of the second air passage R2 communicates with the rear inside air introduction port 2b and the outside air introduction port 2c.
  • the first air passage R1 and the second air passage R2 communicate with a common outside air introduction port 2c, but the inside air introduction port communicates with different inside air introduction ports 2a and 2b. Thereby, it becomes a structure which can introduce
  • the first inside / outside air switching damper 6 is disposed in front of the partition wall portion 2g inside the blower casing 2, and includes a closing plate portion 6a, a shaft portion 6b, and an end plate portion 6c.
  • the blocking plate portion 6a extends in the left-right direction.
  • the shaft portion 6b also extends in the left-right direction, and is supported so as to be rotatable with respect to the left and right side walls of the blower casing 2.
  • the end plate portion 6c is provided in the vicinity of both ends in the left-right direction of the shaft portion 6b.
  • the end plate portion 6c extends in the radial direction from the shaft portion 6b and continues to both left and right end portions of the closing plate portion 6a.
  • the closing plate portion 6a, the shaft portion 6b, and the end plate portion 6c are integrally formed.
  • the first inside / outside air switching damper 6 is rotated around the center line of the shaft portion 6b, thereby switching between a state rotated toward the front as shown in FIG. 4 and a state rotated toward the rear although not shown. It is done.
  • the front inside air introduction port 2a is closed and the outside air introduction port 2c is opened, so that the inflow of inside air is blocked and the outside air is the first air. It is introduced upstream of the passage R1.
  • the second inside / outside air switching damper 7 is disposed on the rear side of the partition wall 2g inside the blower casing 2, and similarly to the first inside / outside air switching damper 6, the closing plate portion 7a, the shaft portion 7b, And an end plate portion 7c.
  • the second inside / outside air switching damper 7 is rotated around the center line of the shaft portion 7b to switch between a state where the second inside / outside air switching damper 7 is rotated backward as shown in FIG. It is done.
  • the second inside / outside air switching damper 7 is rotated backward, the rear inside air introduction port 2b is closed and the outside air introduction port 2c is opened, so that the inflow of the inside air is blocked and the outside air flows into the second air passage R2.
  • the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 are driven by an inside / outside air switching actuator 9 shown in FIGS.
  • the inside / outside air switching actuator 9 is controlled by an air conditioning control device.
  • a link member 9 a is engaged with the shaft portion 6 b of the first inside / outside air switching damper 6 and the shaft portion 7 b of the second inside / outside air switching damper 7, and the link member 9 a is rotated by the inside / outside air switching actuator 9.
  • the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 can be interlocked.
  • first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 using the link member 9a Since a well-known technique can be used for the interlocking structure of the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 using the link member 9a, detailed description thereof is omitted. Alternatively, the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 may be driven separately without using the link member 9a.
  • the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 are driven as follows. That is, as shown in FIG. 4, the outside air introduction mode in which the first inside / outside air switching damper 6 is rotated forward and the second inside / outside air switching damper 7 is rotated backward, and the first inside / outside air switching damper.
  • the internal air circulation mode in which the second internal / external air switching damper 7 is rotated forward and the first internal / external air switching damper 6 is rotated forward and the second internal / external air switching is performed.
  • the inside / outside air two-layer flow mode in which the damper 7 is rotated forward the mode can be switched to an arbitrary mode.
  • the first inside / outside air switching damper 6 In the outside air introduction mode, since the first inside / outside air switching damper 6 is rotated forward and the second inside / outside air switching damper 7 is rotated backward, the first air passage R1 and the second air passage R2 Only outside air is introduced.
  • the inside air circulation mode since the first inside / outside air switching damper 6 rotates backward and the second inside / outside air switching damper 7 rotates forward, the first air passage R1 and the second air passage R2 Only shyness is introduced.
  • the first internal / external air two-layer flow mode In the internal / external air two-layer flow mode, the first internal / external air switching damper 6 rotates forward and the second internal / external air switching damper 7 rotates forward, so that the external air is in the first air passage R1.
  • the inside air is introduced into the second air passage R2.
  • the inside / outside air two-layer flow mode is a mode used during heating.
  • Switching between the inside air circulation mode, the outside air introduction mode, and the inside / outside air two-layer flow mode is performed by conventionally known automatic air conditioner control.
  • the inside / outside air two-layer flow mode in winter, relatively dry outside air is supplied to the defrost outlet, and the windshield glass is well cleared, while relatively warm inside air is supplied to the heat outlet. Heating efficiency can be improved.
  • a scroll casing 20 in which the blower fan 3 is accommodated is provided below the inside air inlets 2a, 2b and the outside air inlet 2c of the blower casing 2.
  • the scroll casing 20 includes an upper scroll casing 21 in which a portion provided with the upper blades (first blades) 30 in the blower fan 3 is housed, and a lower side in the blower fan 3. It is divided into a lower scroll casing 22 in which a portion provided with blades (second blades) 31 is accommodated.
  • the upper blade 30 and the lower blade 31 can also be called blades.
  • a bottom wall member 23 is provided at the bottom of the scroll casing 20.
  • the bottom wall member 23 is a member constituting the scroll casing 20.
  • the scroll casing 20 is constituted by the upper scroll casing 21, the lower scroll casing 22 and the bottom wall member 23.
  • a partition plate 24 for partitioning the inside of the scroll casing 20 in the vertical direction is disposed inside the scroll casing 20, and this partition plate 24 is also a member constituting the scroll casing 20.
  • a substantially circular first bell mouth opening 21 a is formed in the upper wall portion of the upper scroll casing 21 so as to open inside the blower casing 2.
  • the first bell mouth opening 21a is disposed so as to face the lower surface of the filter 8, and communicates with the first air passage R1.
  • a protruding wall portion 21 b that protrudes upward is provided on the upper wall portion of the upper scroll casing 21.
  • the protruding wall 21b is positioned behind the opening edge of the first bell mouth opening 21a and extends in the left-right direction.
  • the upper end portion of the protruding wall portion 21b reaches the vicinity of the lower end portion of the partition wall portion 2g.
  • the upper side of the upper scroll casing 21 inside the blower casing 2 is partitioned in the front-rear direction by the protruding wall portion 21b and the partition wall portion 2g, and the first air passage is located in front of the protruding wall portion 21b and the partition wall portion 2g.
  • R1 is formed, and the second air passage R2 is formed behind the protruding wall portion 21b and the partition wall portion 2g.
  • the first air passage R1 communicates with the inside of the upper scroll casing 21 through the first bell mouth opening 21a, and the inside of the upper scroll casing 21 is a part of the first air passage R1.
  • a portion above the partition plate 24 is a first air passage R1.
  • a portion of the blower fan 3 where the upper blades 30 are provided is disposed in the first air passage R ⁇ b> 1 inside the upper scroll casing 21.
  • the air in the first air passage R1 is blown as air-conditioning air by the portion of the blower fan 3 where the upper blades 30 are provided. That is, the portion of the blower fan 3 where the upper blades 30 are provided is a portion that forms an air flow in the upper layer.
  • the partition plate 24 is formed with a through hole 24a into which the blower fan 3 is inserted from the second air passage R2 toward the first air passage R1.
  • the height of the peripheral portion of the through hole 24a is coincident with the height of the extending portion 34f of the blower fan 3 and the intermediate portion in the vertical direction of the horizontal plate portion 38 described later.
  • an upper air outlet 21 c connected to the air conditioning unit is formed on the front side of the left side wall portion of the upper scroll casing 21.
  • the downstream end of the first air passage R1 communicates with the upper air outlet 21c, and the air in the first air passage R1 is blown out of the upper scroll casing 21 from the upper air outlet 21c. .
  • the second air passage R ⁇ b> 2 extends downward in the rear side of the upper scroll casing 21, and the lower end of the second air passage R ⁇ b> 2 reaches the bottom wall member 23.
  • the lower wall portion of the lower scroll casing 22 is spaced upward from the bottom wall member 23, and the lower end portion of the second air passage R2 is located between the lower wall portion of the lower scroll casing 22 and the bottom wall member 23. is doing.
  • a bell mouth constituent member 22b having a substantially circular second bell mouth opening 22a is provided on the lower wall portion of the lower scroll casing 22 .
  • the second bell mouth opening 22a is disposed to face the bottom wall member 23 and communicates with the lower end of the second air passage R2.
  • the second bell mouth opening 22a and the first bell mouth opening 21a are located concentrically.
  • the bell mouth constituent member 22 b is adapted to be fitted to the peripheral edge portion of the opening 22 c formed in the lower wall portion of the lower scroll casing 22.
  • the lower end of the second air passage R2 communicates with the inside of the lower scroll casing 22 via the second bell mouth opening 22a, and the inside of the lower scroll casing 22 is a part of the second air passage R2. It has become.
  • a portion below the partition plate 24 is a second air passage R2.
  • the portion of the blower fan 3 where the lower blades 31 are provided is disposed in the second air passage R ⁇ b> 2 inside the lower scroll casing 22.
  • the blower fan 3 rotates, the air in the second air passage R2 is blown as air-conditioning air by the portion of the blower fan 3 where the lower blades 31 are provided. That is, the portion of the blower fan 3 where the lower blade 31 is provided is a portion that forms an air flow in the lower layer.
  • a lower air outlet 22 c connected to the air conditioning unit is formed on the front side of the left side wall portion of the lower scroll casing 22.
  • the lower air outlet 22c is located directly below the upper air outlet 21c.
  • the downstream end of the second air passage R2 communicates with the lower air outlet 22c, and the air in the second air passage R2 is blown out of the lower scroll casing 22 from the lower air outlet 22c. It has become.
  • the bottom wall member 23 is a cover-like member that is formed so as to cover the lower end portion of the lower scroll casing 22 and covers the lower end portion.
  • the peripheral edge portion of the bottom wall member 23 is formed so as to be fitted to the peripheral edge portion of the lower end portion of the lower scroll casing 22, and the peripheral edge portion of the bottom wall member 23 and the lower end portion of the lower scroll casing 22. Air is prevented from leaking between the parts.
  • the motor 5 is attached to the bottom wall member 23 via a motor attachment member 5a.
  • a blower fan 3 is disposed above the motor 5.
  • the motor attachment member 5 a is fixed to the bottom wall member 23.
  • the motor 5 is attached to the motor attachment member 5a.
  • the motor 5 includes a main body 5b incorporating a rotor and the like, a rotary shaft 5c extending in the vertical direction, and a cover 5d that covers the main body 5b from above.
  • the rotating shaft 5c protrudes upward from the upper end portion of the main body 5b, passes through the cover 5d, and further protrudes upward from the cover 5d.
  • the first bell mouth opening 21a and the second It is arranged concentrically with the bell mouth opening 22a.
  • the upper end portion of the rotating shaft 5c is located above the second bell mouth opening 22a.
  • the cover portion 5d is provided with a cylindrical portion 5e surrounding the rotating shaft 5c.
  • the cylindrical part 5e can be formed in a cylindrical shape and is arranged concentrically with the rotating shaft 5c.
  • a plurality of arc-shaped wall portions may be provided instead of the cylindrical portion 5e.
  • the rotating shaft 5c protrudes upward from the upper end portion of the cylindrical portion 5e.
  • the blower fan 3 is fixed to the rotary shaft 5c, and the blower fan 3 and the rotary shaft 5c rotate integrally. Therefore, when a voltage is applied to the main body 5b of the motor 5, the rotational force of the rotating shaft 5c is transmitted to the blower fan 3, and the portion of the blower fan 3 where the upper blades 30 are provided is the first air passage R1. The portion provided with the lower blade 31 in the blower fan 3 rotates in the second air passage R2.
  • An air conditioning control device (not shown) is connected to the main body 5b of the motor 5, and a voltage is applied by the air conditioning control device so as to achieve a desired rotation speed.
  • the blower fan 3 includes a fixed portion 33 fixed to the rotating shaft 5 c of the motor 5, and a cone portion 34 extending from the fixed portion 33 in the radial direction of the rotating shaft 5 c. And a large number of upper blades 30 and lower blades 31 fixed to the outside of the cone portion 34 in the radial direction.
  • the upper blade 30 and the lower blade 31 are long in the vertical direction.
  • the fixed portion 33, the cone portion 34, the upper blade 30 and the lower blade 31 can be formed as an integrally molded product made of a resin material, but can also be configured by combining different members.
  • the blower fan 3 is a centrifugal fan.
  • the fixed portion 33 is formed in a cylindrical shape having an insertion hole 33a into which the rotating shaft 5c of the motor 5 is inserted.
  • the upper part of the fixed part 33 protrudes upward from the upper surface of the inner peripheral part 34 b of the cone part 34, and therefore the upper part of the fixed part 33 is positioned so as to protrude inside the cone part 34. .
  • the insertion hole 33a of the fixed portion 33 extends in the vertical direction, and both the upper end and the lower end of the insertion hole 33a are open.
  • the rotating shaft 5c of the motor 5 is fixed in a state of being inserted into the insertion hole 33a. Since the means for fixing the fixed portion 33 to the rotating shaft 5c of the motor 5 is conventionally the periphery, detailed description thereof will be omitted.
  • the cone part 34 is formed so as to be depressed downward so that the fixed part 33 side is positioned below the outer peripheral side. That is, the cone part 34 has the outer peripheral part 34a and the inner peripheral part 34b, and the outer peripheral part 34a and the inner peripheral part 34b are integrally molded.
  • the inner peripheral portion 34 b extends radially outward from the intermediate portion in the vertical direction of the outer peripheral surface of the fixed portion 33.
  • the inner peripheral portion 34b can be inclined or curved so as to be positioned closer to the radially outer end portion.
  • the outer peripheral portion 34a extends upward from the radially outer end portion of the inner peripheral portion 34b, and is inclined or curved so that the closer to the upper end portion, the closer to the radially outer side.
  • outer peripheral portion 34a and the inner peripheral portion 34b are merely examples, and the outer peripheral portion 34a and the inner peripheral portion 34b may be smoothly continuous, or the boundary portion between the outer peripheral portion 34a and the inner peripheral portion 34b. It may be a continuous shape so that can be clearly seen.
  • the outer peripheral portion 34a and the inner peripheral portion 34b make the shape of the cone portion 34 recessed downward, for example, a shape that can also be called a bowl shape or a concave shape.
  • the upper end part of the outer peripheral part 34a of the cone part 34 has the extension part 34f extended toward radial direction outward.
  • the extending portion 34f extends in a direction intersecting the rotating shaft 5c of the motor 5, and in this embodiment, the extending portion 34f is curved or inclined so as to be located upward as it goes outward in the radial direction of the rotating shaft 5c.
  • the lower end portion of the outer peripheral portion 34 a is the lowest portion of the cone portion 34.
  • the lower end portion of the upper blade 30 is coupled to the upper surface of the extending portion 34f of the outer peripheral portion 34a of the cone portion 34, and the upper blade 30 is provided so as to extend upward from the upper surface of the extending portion 34f.
  • the blower fan 3 rotates, air is sucked from above the upper blades 30 and blown out radially between the upper blades 30 adjacent in the circumferential direction.
  • a vertical plate portion 37 and a horizontal plate portion 38 are provided on the extending portion 34f of the outer peripheral portion 34a.
  • the vertical plate portion 37 protrudes downward from the lower surface of the extension portion 34 f and is formed in an annular shape concentric with the rotation shaft 5 c of the motor 5.
  • the horizontal plate portion 38 extends outward from the lower end portion of the vertical plate portion 37 in the radial direction of the rotating shaft 5c.
  • the radially outer end portion of the rotating shaft 5c in the horizontal plate portion 38 extends further outward than the radially outer end portion of the rotating shaft 5c in the extending portion 34f.
  • the upper end of the lower blade 31 is joined to the lower surface of the horizontal plate portion 38, and the lower blade 31 is formed to extend downward.
  • a space that opens outward in the radial direction of the rotating shaft 5c is formed by the horizontal plate portion 38, the extending portion 34f, and the vertical plate portion 37.
  • first ribs 35 and second ribs 36 extending in the radial direction of the rotation shaft 5 c are provided on the upper surface of the cone portion 34.
  • the first rib 35 and the second rib 36 are connected to the outer peripheral surface of the fixed portion 33 and are also connected to the outer peripheral portion 34 a of the cone portion 34. That is, the first rib 35 and the second rib 36 are reinforcing ribs extending in the radial direction from the outer peripheral surface of the fixed portion 33 until reaching the outer peripheral portion 34a of the cone portion 34.
  • the fixed portion 33, the outer peripheral portion 34a, Can also be referred to as connecting ribs that connect the two.
  • the first rib 35 is higher than the second rib 36, and the radial dimension of the first rib 35 is set longer than the radial dimension of the second rib 36.
  • the first ribs 35 and the second ribs 36 are alternately provided in the circumferential direction of the rotation shaft 5c.
  • the lower ends of the first rib 35 and the second rib 36 are connected to the inner peripheral part 34 b of the cone part 34. Therefore, the fixed portion 33, the inner peripheral portion 34 b of the cone portion 34, and the outer peripheral portion 34 a of the cone portion 34 are connected and integrated by the first rib 35 and the second rib 36.
  • One or both of the first rib 35 and the second rib 36 may be omitted.
  • the upper ends of the first rib 35 and the second rib 36 are positioned below the lower end of the upper blade 30. Thereby, since the 1st rib 35 and the 2nd rib 36 become difficult to inhibit the flow of a wind, sufficient air volume can be ensured.
  • the plurality of first ribs 35 are arranged at equal intervals in the circumferential direction of the rotation shaft 5c.
  • the plurality of second ribs 36 are also arranged at equal intervals in the circumferential direction of the rotation shaft 5c.
  • the intervals between the first ribs 35 and the second ribs 36 adjacent to each other in the circumferential direction of the rotation shaft 5c are all set equal. Thereby, the balance at the time of rotation of the fan 3 for ventilation becomes favorable.
  • the outside air introduction mode in which the outside air is introduced from the outside air introduction port 2c is set.
  • the outside air introduction mode when the blower fan 3 rotates, the outside air introduced from the outside air introduction port 2c flows through the first air passage R1 and the second air passage R2 and is blown as air-conditioning air.
  • the inside air introduction ports 2a, 2b and the outside air introduction port 2c are opened by the operation of the inside / outside air switching dampers 6, 7, the inside / outside air two-layer flow mode is set, and the blower fan 3 rotates, whereby the outside air introduction port 2c.
  • the outside air introduced from the air flows through the first air passage R1, and the inside air introduced from the inside air introduction ports 2a and 2b flows through the second air passage R2 and is blown as air for air conditioning. That is, according to the vehicle air-conditioning blower 1 according to this embodiment, the air can be blown by switching to any mode among the outside air introduction mode, the inside air circulation mode, and the inside / outside air two-layer flow mode.
  • the cone portion 34 formed so as to be depressed downward, the rotation shaft 5c of the motor 5 can be shortened and the stability during rotation of the blower fan 3 can be enhanced. Further, since the vertical plate portion 37 and the horizontal plate portion 38 are provided on the extending portion 34f of the outer peripheral portion 34a of the cone portion 34, the cone portion 34 is reinforced by the vertical plate portion 37 and the horizontal plate portion 38. . Since the edge part of the upper blade
  • the cone portion 34 that is recessed downward is reinforced by the first rib 35 and the second rib 36.
  • the rigidity of the cone portion 34 can be sufficiently secured.
  • the space formed by the horizontal plate portion 38, the extending portion 34f and the vertical plate portion 37 of the blower fan 3 is opened radially outward, the mold structure at the time of molding the blower fan 3 is complicated. Can be avoided and the cost can be reduced.
  • the extending portion 34 f of the blower fan 3 may have a shape extending in a direction orthogonal to the axial direction of the rotating shaft 5 c of the motor 5.
  • the vertical board part 37 protrudes below from the site
  • the vertical plate portion 37 may protrude downward from a portion where the radial intermediate portion of the upper blade 30 in the extension portion 34 f is coupled. That is, in the vicinity of the portion where the radial direction intermediate portion of the upper blade 30 is coupled in the extended portion 34f, the rigidity is increased by the coupling of the upper blade 30, and the vertical plate portion 37 is protruded from this highly rigid portion. , The rigidity is further improved.
  • the vertical plate portion 37 protrudes upward from the extending portion 34 f, and the horizontal plate portion 38 extends from the upper end portion of the vertical plate portion 37 in the radial direction of the rotary shaft 5 c. It may be.
  • the lower end portion of the upper blade 30 is coupled to the upper surface of the horizontal plate portion 38.
  • the upper end portion of the lower blade 31 is coupled to the lower surface of the extending portion 34f.
  • the cone part 34 is provided with a plurality of drain holes 34 c for draining water on the upper surface of the cone part 34 to the lower side of the cone part 34.
  • the plurality of drain holes 34c are provided at the lower end portion of the outer peripheral portion 34a of the cone portion 34, that is, at the lowest portion of the cone portion 34, and are arranged at intervals in the circumferential direction of the rotating shaft 5c.
  • the inner peripheral portion 34b of the cone portion 34 can be inclined so as to be positioned downward as it comes closer to the radially outer end portion, and thereby, it is inclined downward toward the lower edge portion of the drain hole 34c. Since it becomes a shape, the water on the upper surface of the inner peripheral portion 34b can easily flow toward the drain hole 34c.
  • the intervals between the drain holes 34c can be equal. Further, the drain hole 34c is located away from the upper end portion of the cylindrical portion 5e of the cover portion 5d and positioned radially outward from the cylindrical portion 5e. Accordingly, the drain hole 34c is located outside the cylindrical portion 5e in plan view.
  • the second rib 36 is disposed so as to cross the drain hole 34c. In plan view, the second rib 36 passes through the center of the opening width of the drainage hole 34c, and as a result, one drainage hole 34c is disposed across the second rib 36, The drain hole 34c is divided into two at the center of the opening width. By disposing the second rib 36 in this manner, the opening of the drain hole 34c can be provided at a position where it is not closed. Since the first rib 35 is provided at a position away from the opening of the drain hole 34c, the first rib 35 is also a rib provided at a position where the opening of the drain hole 34c is not closed.
  • a protruding portion 34d is formed that protrudes downward from the radially inner end portion of the rotating shaft 5c in the drain hole 34c.
  • the water flowing downward from the drain hole 34c can easily flow along the protrusion 34d.
  • the protrusion 34d extends in the circumferential direction of the rotating shaft 5c, and a plurality of the protrusions 34d are provided. Further, the protrusions 34d can be provided at equal intervals in the circumferential direction of the rotating shaft 5c.
  • the protrusion 34d can also be formed to extend in an arc shape concentric with the rotation shaft 5c.
  • the protruding portion 34d is located immediately below the first rib 35 and the second rib 36. Since the projecting portion 34d extends in the circumferential direction, the common projecting portion 34d is located at the portion of the cone portion 34 where the first rib 35 is formed and the portion of the cone portion 34 where the second rib 36 is formed. It will be. In addition, since the protruding portion 34d and the first rib 35 and the second rib 36 are positioned so as to overlap in the thickness direction (vertical direction) of the cone portion 34, the rigidity of the cone portion 34 is further improved.
  • the width W of the lower end surface 34e of the protruding portion 34d can be set to 1.0 mm or less. Thereby, the water that has flowed to the lower end surface 34e through the protruding portion 34d can be easily dropped.
  • the lower end surface 34e of the protruding portion 34d can be a curved surface.
  • the lower portion of the protrusion 34d can be formed to be pointed downward.
  • the water that has flowed through the protruding portion 34d can be easily dropped.
  • a protrusion 34g protruding radially outward may be formed at the end of the protrusion 34d. Thereby, it can suppress that water flows radially inward from between the protrusion parts 34d adjacent to the circumferential direction.
  • the protruding portion 34d can be formed in an annular shape that is continuous in the circumferential direction of the rotating shaft 5c, as in Modification 8 of the embodiment shown in FIG.
  • the vehicle air-conditioning blower according to the present invention can be used, for example, as a blower unit of a vehicle air-conditioner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention concerne une section d'extension (34f) disposée sur la section périphérique externe (34a) d'une section conique (34). La section d'extension (34f) est pourvue d'une section de plaque verticale (37) et d'une section de plaque horizontale (38). Une lame supérieure (30) est jointe à la section d'extension (34f). Une lame inférieure (31) est jointe à la section de plaque horizontale (38).
PCT/JP2019/010656 2018-03-27 2019-03-14 Dispositif de soufflante pour la climatisation d'un véhicule WO2019188365A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-060418 2018-03-27
JP2018060418A JP7036645B2 (ja) 2018-03-27 2018-03-27 車両空調用送風装置

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WO2019188365A1 true WO2019188365A1 (fr) 2019-10-03

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KR102698344B1 (ko) * 2020-02-27 2024-08-26 한온시스템 주식회사 차량용 공조장치의 송풍유닛

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001206044A (ja) * 1996-06-26 2001-07-31 Denso Corp 送風ユニット
JP2001213134A (ja) * 2000-02-01 2001-08-07 Denso Corp 車両用空調装置の送風ユニット
JP2012166658A (ja) * 2011-02-14 2012-09-06 Denso Corp 送風機ユニット
JP2017171020A (ja) * 2016-03-22 2017-09-28 株式会社日本クライメイトシステムズ 車両空調用送風装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109196231B (zh) 2016-05-30 2020-05-05 株式会社电装 鼓风机单元及鼓风机单元的制造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001206044A (ja) * 1996-06-26 2001-07-31 Denso Corp 送風ユニット
JP2001213134A (ja) * 2000-02-01 2001-08-07 Denso Corp 車両用空調装置の送風ユニット
JP2012166658A (ja) * 2011-02-14 2012-09-06 Denso Corp 送風機ユニット
JP2017171020A (ja) * 2016-03-22 2017-09-28 株式会社日本クライメイトシステムズ 車両空調用送風装置

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