WO2018008677A1

WO2018008677A1 - Vehicle air-conditioning apparatus

Info

Publication number: WO2018008677A1
Application number: PCT/JP2017/024618
Authority: WO
Inventors: 慶典川西
Original assignee: カルソニックカンセイ株式会社
Priority date: 2016-07-07
Filing date: 2017-07-05
Publication date: 2018-01-11

Abstract

This vehicle air-conditioning apparatus (1A, 1B) is provided with: an air-conditioning case (C) which is provided with a plurality of divided cases (C1 to C3) that are joined to each other so as to form an air passage, the air passage having openings (K1 to K4) including joint portions (26a, 26b) for joining the plurality of divided cases (C1 to C3) to each other; and a slide door (11) which is slidably disposed so as to open and close the openings (K1 to K4). The divided cases (C1 to C3) have draft surfaces (T1) in the joint portions (26a, 26b) vicinity, the draft surfaces having drafts of a predetermined angle which are created during resin molding. The air-conditioning case (C) has recesses (A), which are formed in the joint portions (26a, 26b) vicinity on the draft surfaces (T1) and recessed in the air flow direction. On the slide door (11), drafts (T2) which are inverse drafts to the drafts of the recesses (A) are formed over the entire length of the slide door (11) in the slide direction.

Description

Air conditioner for vehicles

The present invention relates to a vehicle air conditioner for air conditioning a vehicle interior.

2. Description of the Related Art Conventionally, various vehicle air conditioners are provided in which an air conditioning case is provided with a side vent outlet having a vent door, a differential outlet having a differential door, a foot outlet having a foot door, and the like.

The air conditioning case is composed of a plurality of divided cases molded of resin.

And, in order to make it easy to remove the mold from the mold at the time of forming the divided case, a die cutting gradient is formed at the end of each divided case. Therefore, in the air-conditioning case, a recess (concave portion) due to a die-cutting gradient is formed at a joint portion (joint) between the divided cases.

Here, in a case where a slide door that constitutes an air mix door or the like is provided in the air conditioning case along the opening on the split case side including the joint portion, it is necessary to seal it to prevent air leakage from the recess. is there.

Conventionally, a device for preventing air leakage from the concave portion formed in the joint portion of such a divided case has been made.

Patent Document 1 discloses a technique in which a slide door (not shown) provided with a film-like member 600 (see FIG. 8) that opens and closes is provided at the opening of the divided cases C10a and C10b that constitute the air conditioning case C10 of the vehicle air conditioner. Has been proposed.

In this technique, the film-like member 600 is in contact with the frame (seal surface) of the opening by the wind pressure P of the blown air, thereby sealing the recess A formed in the joint 526 of the divided cases C10a and C10b. .

JP 2007-112246 A

However, in the vehicle air conditioner according to the above-described prior art, since the wind pressure P of the blown air is constantly changing, the state in which the film-like member 600 is in contact with the seal surface and the state in which the film-like member 600 is detached is repeatedly opened. There was an inconvenience that it was difficult to seal.

Furthermore, the vibration of the membrane member 600 caused by the blown air may cause noise such as a fluttering sound.

The present invention has been made in view of the above problems, and can prevent noise and can stably seal an opening in close contact with a recess formed in a joint of a split case. The purpose is to provide an air conditioner for a vehicle.

An air conditioner for a vehicle according to an aspect of the present invention includes a plurality of divided cases that are joined to each other to form an air passage, and an opening including a joint that joins the plurality of divided cases to each other is formed in the air passage. An air conditioning case that is slidable and a sliding door that is slidably arranged to open and close the opening. Each of the plurality of divided cases has a draft surface with a draft angle of a predetermined angle generated during resin molding in the vicinity of the joint. The air conditioning case is formed in the vicinity of the joint portion with a draft surface and has a recess that is recessed in the direction of air flow. The slide door is formed with a slope that is opposite to the draft of the draft surface facing the recess over the entire length in the sliding direction of the slide door.

An air conditioner for a vehicle according to an aspect of the present invention has a draft surface with a draft angle of a predetermined angle generated at the time of resin molding of each divided case in the vicinity of a joint portion of each divided case. A recess is formed in the vicinity of the joint, and the slide door has a slope that is the reverse of the draft of the recess over the entire length in the sliding direction of the slide door. The recessed portion and the slide door are in close contact with each other, and the opening of the air conditioning case can be stably sealed.

In addition, since it is not necessary to use a film-like member that seals the joint as in the conventional case, the number of parts can be reduced, and noise such as a fluttering sound can be prevented from being generated by vibration of the film-like member caused by blown air. Can do.

FIG. 1 is a longitudinal sectional view showing a schematic configuration of the vehicle air conditioner according to the first embodiment. FIG. 2 is a longitudinal sectional view showing a schematic configuration of an air conditioning case applied to the vehicle air conditioner according to the first embodiment. FIG. 3 is a perspective view showing a schematic configuration of a slide door mechanism applied to the vehicle air conditioner according to the first embodiment. FIG. 4 is a cross-sectional view showing a schematic configuration of a slide door mechanism applied to the vehicle air conditioner according to the first embodiment. FIG. 5 is a partially enlarged cross-sectional view illustrating a configuration example of an air conditioning case and a slide door applied to the vehicle air conditioner according to the first embodiment. FIG. 6 is a cross-sectional plan view showing a relationship between an air conditioning case and a slide door applied to the vehicle air conditioner according to the first embodiment. FIG. 7 is a cross-sectional view showing a modification of the air conditioning case and the sliding door applied to the vehicle air conditioner according to the first embodiment. FIG. 8 is a cross-sectional view showing a schematic configuration of a vehicle air conditioner according to the prior art. FIG. 9 is a perspective view of a state in which a partial configuration showing the overall configuration of the slide door mechanism applied to the vehicle air conditioner according to the second embodiment is removed. FIG. 10 is a cross-sectional view of a sliding door mechanism applied to the vehicle air conditioner according to the second embodiment. FIG. 11 is a cross-sectional view of a main part for explaining the full cool mode in the vehicle air conditioner according to the second embodiment. FIG. 12 is a cross-sectional view of a main part for explaining an intermediate mode in the vehicle air conditioner according to the second embodiment. FIG. 13: is principal part sectional drawing explaining the full hot mode in the vehicle air conditioner which concerns on 2nd Embodiment. 14A is a cross-sectional view illustrating a state before the elastic member comes into contact with the seal surface of the case, and FIG. 14B is a cross-sectional view of the elastic member as the seal surface of the case according to the second embodiment. It is sectional drawing explaining the state which contacted. 15A is a cross-sectional view illustrating a state before the elastic member of the modification contacts the seal surface of the case, and FIG. 15B illustrates the elasticity of the modification in the vehicle air conditioner according to the second embodiment. It is sectional drawing explaining the state which the member contacted the sealing surface of the case. FIG. 16 is a perspective view of a main part of the slide door in the vehicle air conditioner according to the second embodiment.

(First embodiment)
Hereinafter, a vehicle air conditioner 1A according to a first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing a schematic configuration of a vehicle air conditioner 1A according to the first embodiment. FIG. 2 is a longitudinal sectional view showing a schematic configuration of an air conditioning case C applied to the vehicle air conditioner 1A.

FIG. 3 is a perspective view showing a schematic configuration of slide door mechanisms SD1 and SD2 applied to the vehicle air conditioner 1A. 4 is a cross-sectional view including the joint portion 26a in the perspective view of FIG. 3, and is a cross-sectional view showing a schematic configuration of the slide door mechanisms SD1 and SD2 applied to the vehicle air conditioner 1A. FIG. 5 is a partially enlarged sectional view showing an example of the configuration of the sliding door 11 and the air conditioning case C of the sliding door mechanism SD1 or SD2 applied to the vehicle air conditioner 1A, that is, C1, C2 or C2, C3. . FIG. 6 is a cross-sectional plan view showing the relationship between the air conditioning case C (C1, C2, C3) applied to the vehicle air conditioner 1A and the slide door 11. As shown in FIG.

(Schematic configuration of vehicle air conditioner)
1A of vehicle air conditioners have the air-

conditioning parts

2 and 3 arrange | positioned at the both sides of a vehicle width direction, and air-conditions the driver's seat and front passenger seat of a vehicle interior (not shown) independently.

Each air-

conditioning unit

2 and 3 includes an air-conditioning case (case) C in which an evaporator 4 and a heater core 5 are disposed, and is molded from a resin such as polypropylene (PP). The air conditioning case C forms an outer shell of each of the

air conditioning units

2 and 3 and forms an air passage through which blown air flows.

The air conditioning case C includes a first passage 7 between the evaporator 4 disposed on the upstream side of the air flow and the heater core 5 disposed on the downstream side of the air flow. The blown air that has passed through the evaporator 4 has a second passage 8 that bypasses the heater core 5.

The uppermost stream of the air passage is provided with an outside air introduction port (not shown) for introducing outside air that is air outside the passenger compartment and an inside air introduction port (not shown) that introduces inside air that is air inside the passenger compartment. Yes.

When the inside air and the outside air are sucked into the air passage by a blower (not shown), the sucked air is made into conditioned air at a desired temperature by the evaporator 4 and the heater core 5. A defroster air outlet 9a, a vent air outlet 9b, and a foot air outlet 9c are provided on the downstream side of the air flow of the heater core 5 to blow conditioned air into the passenger compartment.

The slide door (air mix door) 11 constituting the slide door mechanisms SD1 and SD2 includes a door main body 12 and an elastic member 13 provided on the seal surfaces 6a and 6b described later of the door main body 12.

The elastic member 13 is formed of, for example, a urethane foam material and is attached to the door body 12. The door body 12 extends in the moving direction of the air mix door 11 and is formed in a rectangular shape that is long in a direction orthogonal to the moving direction of the air mix door 11. The door main body 12 is curved in a convex shape toward the downstream direction of the air flow.

In addition, the detailed shapes of the flat portions of the door body 12 and the elastic member 13 constituting the slide door mechanisms SD1 and SD2 will be described later.

The door body 12 is orthogonal to the moving direction of the air mix door 11 from the door body 12 and the rack 14 arranged along the moving direction of the air mix door 11 on the side opposite to the side where the elastic member 13 is provided. A pair of left and right guide pins 15 projecting in the direction are provided.

The rack 14 is disposed on both the left and right sides of the door body 12. A total of four guide pins 15 are arranged on the upper and lower portions of the left and right sides of the door body 12.

The air conditioning case C is provided with a drive gear 16 that meshes with the rack 14 and is driven by an electric motor (not shown). The air conditioning case C is further provided with a pair of guide grooves 17 that extend in the moving direction of the air mix door 11 and guide the guide pins 15.

The air conditioning case C includes a pair of left and right vertical seal surfaces 6a extending in the vertical direction (movement direction of the air mix door 11) and an intermediate horizontal seal surface 6b extending in the horizontal direction (direction perpendicular to the movement direction of the air mix door 11). Is provided.

The left and right peripheral edges 11a of the air mix door 11 are in close contact with each vertical seal surface 6a in the course of movement between the first switching position (upper position) and the second switching position (lower position).

The middle lateral seal surface 6b is in close contact with the central portion 11b inside the left and right peripheral edges 11a of the air mix door 11 during the movement process between the first switching position and the second switching position.

The intermediate horizontal seal surface 6b is provided on an intermediate member 6c disposed at a position where the first passage 7 and the second passage 8 are partitioned.

(Configuration of air conditioning case)
As shown in FIG. 2, the air conditioning case C applied to the vehicle air conditioner 1A according to the present embodiment includes three divided cases C1 to C3.

That is, in the drawing, the divided cases C1 to C3 of the air conditioning case C are arranged adjacent to each other in the left-right direction. The air-conditioning case C is joined to the right side of the central divided case C2 and the central divided case C2 having three ribs 101a to 101c and ribs 102a to 102c extending to the left and right, and extended to the left. It is composed of a right split case C1 having three-stage ribs 100a to 100c, and a left split case C3 having three-stage ribs 103a to 103c joined to the left side of the central split case C2 and extending to the right. ing.

In the embodiment shown in FIG. 2, the example in which the air-conditioning case C is configured by the three divided cases C1 to C3 has been shown, but the present invention is not limited to this. The case where it consists of the above division | segmentation cases may be sufficient.

As schematically shown in FIG. 2, the ribs 100a to 100c, 101a to 101c, 102a to 102c, and 103a to 103c of each of the divided cases C1 to C3 are predetermined in order to facilitate removal during resin molding. A draft surface T1 having a draft (taper) of an angle (for example, about 1 °) is formed.

Further,

joint portions

26a and 26b as joints are formed at positions where the ribs 100a to 100c, 101a to 101c, 102a to 102c, and 103a to 103c of the divided cases C1 to C3 are opposed to each other. Yes.

Also in the cross section perpendicular to FIG. 2 including the joint portion 26a, for example, FIGS. 5 and 6, etc., the ribs 100a to 100c, 101a to 101c, 102a to 102c and 103a to 103a to 103c of each of the divided cases C1 to C3 are the same as FIG. 103c is formed with a draft surface T1 with a draft of a predetermined angle (for example, about 1 °) generated during resin molding of each of the divided cases C1 to C3.

In addition, openings K1 to K4 are formed at portions surrounded by the ribs 100a to 100c, 101a to 101c, 102a to 102c, and 103a to 103c.

The openings K1 and K2 and the openings K3 and K4 are arranged adjacent to each other in the moving direction of the slide door mechanism SD1 and the slide door mechanism SD2, respectively. The sliding door mechanism SD1 slides with respect to the openings K1 and K2, and the sliding door mechanism SD2 slides with respect to the openings K3 and K4.

The

ribs

100b and 101b and the

ribs

102b and 103b correspond to the intermediate member 6c in FIG.

(Configuration of air mix door)
3 to 6 show configuration examples of the air mix door 11 that opens and closes the openings K1 and K2 formed by the right split case C1 and the central split case C2.

Here, as shown in FIG. 5 and the like, in the vicinity of the joint portion 26a of each of the divided cases C1 to C3, a draft surface T1 having a predetermined angle (for example, about 1 °) generated during resin molding of each of the divided cases C1 to C3. Thus, a recess (dent) A that is recessed in the direction of air flow is formed.

On the other hand, the air mix door 11 is formed with a surface T2 having a gradient opposite to the draft angle of the draft surface T1 of the opposing recess A over the entire length of the air mix door 11 in the sliding direction. (See FIGS. 3 and 4).

In the present embodiment, the air mix door 11 includes a slide door main body 12 and an elastic member 13 attached to a surface of the slide door main body 12 facing the openings K1 to K4.

Here, in the present embodiment, the sloped surface T2 formed on the air mix door 11 is formed on the slide door main body 12.

A more specific configuration example of the air mix door 11 will be described. As illustrated in FIGS. 4 and 5, a draft surface T1 in which a draft (taper) is attached to the

ribs

100b and 101b constituting the intermediate member 6c. Is formed.

On the other hand, on the surfaces of the door main body 12 and the elastic member 13 constituting the air mix door 11, a surface T2 having a gradient opposite to the draft (taper) of the draft surface T1 is formed.

Thereby, the surfaces of the door main body 12 and the elastic member 13 are opened and closed in close contact with the surfaces of the

ribs

100b and 101b constituting the intermediate member 6c. For this reason, this air mix door 11 can seal the junction part 26a, and can prevent the leakage of the ventilation air from the junction part 26a effectively.

Further, since it is not necessary to use a film-like member that seals the joint portion 26a as in the prior art, the number of parts can be reduced, and noise generated by the film-like member fluttering with blown air can be eliminated.

Furthermore, in the vicinity of the joint portion 26a, the surface of the elastic member 13 is in contact with a vertex V formed by a sloped surface T2 (see FIG. 5). For this reason, when the air mix door 11 moves, the vicinity of the vertex V is in line contact with the joint portion 26a, and the sliding resistance can be reduced.

In addition, when the curved surface (R) is formed near the vertex V on the surface of the elastic member 13, the sliding resistance can be further reduced.

Further, as shown in FIGS. 2 and 6, an air mix door 11 having a similar configuration may be provided in the openings K3 and K4 formed by the left divided case C3 and the central divided case C2.

In addition, by using a relatively thin member as the elastic member 13 and forming the surface T2 having the above-mentioned gradient on the surface of the door body 12, the door is also formed on the surface of the elastic member 13 itself. A surface T2 having a slope similar to that of the main body 12 can be formed.

Further, the sloped surface T2 may be formed by the elastic member 13 attached to the slide door body 12. In other words, for example, by forming the elastic member 13 itself, an inclination of the surface T2 having a gradient on the surface side may be formed.

(Modification)
A modification of the air conditioning case C and the air mix door 11 applied to the vehicle air conditioner 1A will be described with reference to FIGS. 7 (a) to 7 (c).

First, in the modification shown in FIG. 7A, instead of the draft surface T1 with a uniform gradient (taper) formed on the

ribs

100b and 101b constituting the intermediate member 6c, the divided cases C1a, A flat portion 300 provided in the vicinity of the joint portion 26a of C2a, and a continuous portion 301 that is continuous with the flat portion 300 and has a sloped (tapered) surface T3 are provided.

The surface of the air mix door 11 constituting the slide door mechanism SD3 has a shape corresponding to the flat part 300 and the continuous part 301, and a part of the surface T3 has a slope (taper) and a reverse slope. Surface T4 is formed.

Thereby, this air mix door 11 can obtain the effect of sealing the joint portion 26a and preventing leakage of the blown air from the joint portion 26a. Moreover, by providing the flat part 300, the contact area in the vertex vicinity of the air mix door 11 can be increased, and concentration of pressure can be eased and wear can be reduced.

In the modification shown in FIG. 7 (b), instead of the draft surface T1 with a uniform gradient (taper) formed on the

ribs

100b and 101b constituting the intermediate member 6c, the divided cases C1b and C2b side A concave surface portion 302 having a negative curvature is formed.

Also, the surface of the air mix door 11 constituting the slide door mechanism SD4 is formed with a convex surface having a positive curvature corresponding to the concave surface portion 302.

Thereby, this air mix door 11 can obtain an effect such as sealing the joint portion 26a and preventing leakage of blown air from the joint portion 26a.

In the modification shown in FIG. 7 (c), instead of the draft surface T1 with a uniform gradient (taper) formed on both surfaces of the

ribs

100b and 101b constituting the intermediate member 6c, the divided cases C1c, A flat surface 303 is provided on a surface that does not face the C2c air mix door 11.

Thereby, the shapes of the divided cases C1c, C2c, etc. can be simplified, and the cost required for the mold can be reduced.

(Second Embodiment)
A vehicle air conditioner 1B according to the second embodiment will be described with reference to FIGS.

In addition, the same code | symbol is attached | subjected about the structure similar to 1A of vehicle air conditioners which concerns on 1st Embodiment.

The sliding door mechanism M applied to the vehicle air conditioner 1B according to the present embodiment is provided in the vehicle air conditioner 1B shown in FIG. The vehicle air conditioner 1B includes

air conditioning units

2 and 3 disposed on both sides in the vehicle width direction, and independently air-conditions a driver seat and a passenger seat in a passenger compartment (not shown).

Each

air conditioning unit

2, 3 includes an air conditioning case (case) C in which an evaporator 4 and a heater core 5 are arranged.

When the inside air and the outside air are sucked into the air passage by a blower (not shown), the sucked air is made into conditioned air at a desired temperature by the evaporator 4 and the heater core 5.

On the downstream side of the air flow of the heater core 5, a defroster outlet 9a, a vent outlet 9b, and a foot outlet 9c for blowing conditioned air into the passenger compartment are provided.

As shown in FIGS. 9 and 10, the sliding door mechanism M of the present embodiment slides between the open position and the closed position of the air passage to change the mixing ratio of the hot air and the cold air of the blown air. A mix door (slide door) 11 is provided.

The air mix door 11 includes a door main body 12 and an elastic member 13 provided on a seal surface 6a side (right side in FIG. 1) described later of the door main body 12.

The door body 12 extends in the moving direction of the air mix door 11 and is curved in a convex shape toward the downstream direction of air flow (right direction in FIG. 1).

The elastic member 13 is formed of a urethane foam material, and is bonded to one surface (adhesion surface) 12a of the door body 12.

A specific configuration example of the air mix door 11 is the same as that of the vehicle air conditioner 1A according to the first embodiment (see FIGS. 3 to 7).

Here, as shown in FIG. 16, the other surface 12 b of the door body 12 has a rack 14 arranged in the moving direction of the air mix door 11 and the other surface 12 b of the door body 12. A pair of left and right guide pins 15 projecting in a direction orthogonal to the moving direction are integrally provided. The rack 14 is disposed on both the left and right sides of the other surface 12 b of the door body 12. A total of four guide pins 15 are arranged on the upper and lower portions of the left and right sides of the door body 12.

The air-conditioning case C has a seal surface 6 a that at least the peripheral edge of the air mix door 11 closely contacts with the rack 14 at the closed position of the second passage 8, a drive gear 16 that drives the air mix door 11, and the air mix door 11. A pair of guide grooves 17 for guiding each guide pin 15 is provided.

The movement trajectory of the slide front end surface 13b which is the end surface of the elastic member 13 in the sliding direction of the air mix door 11 is set to a trajectory that is separated from the seal surface 6a of the air conditioning case C.

Here, as shown in FIG. 14B, the elastic member 13 is a seal of the air-conditioning case C at a position rearward of the slide front end surface 13b of the elastic member 13, that is, a position spaced downstream of the air flow. Contact surface 6a.

10 to 13, the front end portion 12c of the door body 12 in the sliding direction of the air mix door 11 is bent with a relatively gentle curve in a direction away from the seal surface 6a of the air conditioning case C. After that, the shape is substantially parallel to the movement trajectory.

On the other hand, in the configuration example shown in FIG. 14, the front end portion 12 c of the door body 12 is bent with a relatively steep curve in a direction away from the seal surface 6 a of the air conditioning case C.

The distal end portion 13 a including the slide distal end surface 13 b of the elastic member 13 is provided along the distal end portion 12 c of the door body 12.

In the full cool mode, as shown in FIG. 11, the air mix door 11 is lowered and the first passage 7 is closed. At this time, all the blown air that has passed through the evaporator 4 passes through the second passage 8 and bypasses the heater core 5 to become cold air.

In the intermediate mode, as shown in FIG. 12, the air mix door 11 moves to the intermediate position, and the first passage 7 and the second passage 8 are partially opened. At this time, the blown air is mixed after being partially heated by the heater core 5 and becomes blown air having an intermediate temperature.

In the full hot mode, as shown in FIG. 13, the air mix door 11 is raised and the second passage 8 is closed. At this time, all the blown air that has passed through the evaporator 4 is heated by the heater core 5 through the first passage 7 and becomes warm air.

Thereby, the air mix door 11 adjusts the ratio of the blown air that flows through the heater core 5 and the blown air that bypasses the heater core 5. Air conditioning air at a desired temperature is generated based on this air volume ratio.

In the above configuration, when the air mix door 11 having the door main body 12 and the elastic member 13 is slid from the open position of the second passage 8 in the air conditioning case C to the closed position, the slide front end surface 13b of the elastic member 13 becomes the air conditioning case. It moves along a movement path that is separated from the C sealing surface 6a. At this time, the elastic member 13 contacts the seal surface 6a of the air conditioning case C at a position on the rear side of the slide front end surface 13b of the elastic member 13.

Thereby, the elastic member 13 is elastically deformed, the peripheral edge of the air mix door 11 and the seal surface 6a of the air conditioning case C are brought into close contact with each other, and the air mix door 11 and the air conditioning case C are sealed.

As described above, according to the present embodiment, by keeping the slide front end surface 13b of the elastic member 13 away from the seal surface 6a of the air conditioning case C, the slide front end surface 13b of the elastic member 13 is placed on the air conditioning case C side. Therefore, it is possible to prevent external force from being applied, and damage to the distal end portion 13a including the slide distal end surface 13b of the elastic member 13 and separation from the door body 12 can be prevented. For this reason, according to this embodiment, durability improvement of the elastic member 13 can be aimed at.

Further, since the elastic member 13 is bonded to one surface (adhesion surface) 12a of the door body 12, the gap can be effectively blocked.

In addition, in order to reduce the frictional force between the elastic member 13 and the frame of the air conditioning case C and prevent the packing from peeling off, the packing and the frame are slidable on the slide door (air mix door) 11. It is good to make it contact in the position of the rear side from the front end surface 13b of the sliding direction of the air mix door 11 in a direction.

(Modification)
In the said embodiment, the front-end | tip part 12c of the door main body 12 is bent in the direction spaced apart from the sealing surface 6a of the air-conditioning case C. However, the present invention is not limited to this. As a modified example, as shown in FIGS. 15A and 15B, the distal end portion 13 a of the elastic member 13 can be formed thin and can be recessed in a direction away from the sealing surface 6 a of the air conditioning case C.

In this case, the front end portion 12c of the door body 12 is formed in a flat shape, and a front end portion 13a including a slide front end surface 13b of the elastic member 13 is provided along the flat front end portion 12c. Thereby, when the air mix door 11 is moved, the slide front end surface 13b of the elastic member 13 can be kept away from the seal surface 6a of the air conditioning case C, and the air slide end surface 13b of the elastic member 13 is on the air conditioning case C side. It is possible to prevent external force from being applied.

As shown in FIG. 16, the thickness of the elastic member 13 does not change, the front end of the door body 12 is composed of a curled portion and a flat portion, the elastic member 13 is bonded to the curled portion, and the seal tip is attached to the flat portion. By bonding the portion 13a, the adhesion stability between the door body 12 and the seal tip portion 13a can be further enhanced.

In the present embodiment, the air mix door 11 provided in the air conditioning case C of the vehicle air conditioner 1B is exemplified, but the present invention is not limited to this and can be applied to other sliding doors.

As mentioned above, the invention made by the present inventor has been specifically described based on the embodiment. However, the present invention is not limited to the embodiment, and various modifications can be made without departing from the scope of the invention. Needless to say.

This application claims priority based on Japanese Patent Application No. 2016-134955 (filed on July 7, 2016), the entire contents of which are incorporated herein by reference.

The vehicle air conditioner according to the aspect of the present invention can prevent noise and can stably seal the opening by closely contacting the recess formed in the joint of the split case.

1A, 1B Vehicle air conditioner C Air conditioning case (case) C1 Right split case C2 Central split case C3 Left split case 4 Evaporator 5 Heater core 6b Intermediate lateral seal surface 6c Intermediate member 7 First passage 8 Second passage 11 Sliding door (air (Mixed door) 12 Door body 12c Tip 13 Elastic member 13a Tip

13b Slide tip

26a, 26b Joint K1-K4 Opening SD1, SD2 Sliding door mechanism T1, T2 Gradient surface V apex

Claims

An air conditioning case comprising a plurality of divided cases that are joined together to form an air passage, and an opening including a joint that joins the plurality of divided cases to each other is formed in the air passage;
A sliding door that is slidably disposed and opens and closes the opening,
Each of the plurality of divided cases has a draft surface with a draft angle of a predetermined angle generated at the time of resin molding in the vicinity of the joint portion,
The air conditioning case is formed in the vicinity of the joint at the draft surface and has a recess that is recessed in the direction of air flow.
The vehicle air conditioner is characterized in that the slide door is provided with a gradient that is opposite to the gradient of the draft surface of the concave portion facing the entire length in the sliding direction of the slide door.
The sliding door is
A sliding door body,
An elastic member affixed to a surface of the slide door body facing the opening;
The vehicle air conditioner according to claim 1, comprising:
The air conditioning case has a sealing surface at which the periphery of the slide door is in close contact with the closed position of the air passage,
The sliding door has a door body and the elastic member provided on the seal surface side of the door body,
In the closed position, the elastic member is in close contact with the sealing surface,
The movement locus of the end surface of the elastic member in the sliding direction of the slide door is set to a locus away from the seal surface, and the elastic member is located at a position behind the end surface of the elastic member with the seal surface. The vehicle air conditioner according to claim 2, wherein the vehicle air conditioner is in contact.
A tip end portion of the door body in the sliding direction of the sliding door is formed thin, and is recessed in a direction away from the sealing surface of the air conditioning case,
The vehicle air conditioner according to claim 3, wherein a tip portion including the end face of the elastic member is provided at the tip portion of the door body.
A front end portion of the door body in the sliding direction of the sliding door is bent in a direction away from the seal surface of the air conditioning case, and the front end portion of the door body includes the end surface of the elastic member. The vehicle air conditioner according to claim 3, further comprising a section.
6. The vehicle air conditioner according to claim 5, wherein the front end portion of the door body is formed thin and is recessed in a direction away from the seal surface of the air conditioning case.
The vehicle air conditioner according to any one of claims 2 to 6, wherein the gradient formed in the slide door is formed in the slide door main body.
The vehicle air conditioning according to any one of claims 2 to 6, wherein the gradient formed in the slide door is formed by the elastic member attached to the slide door main body. apparatus.