WO2009036651A1

WO2009036651A1 - An end housing assembly of wind-cooling motors with discharging passages

Info

Publication number: WO2009036651A1
Application number: PCT/CN2008/001156
Authority: WO
Inventors: Henglin Xiao
Original assignee: Wuxi Kipor Power Co., Ltd
Priority date: 2007-09-19
Filing date: 2008-06-16
Publication date: 2009-03-26
Also published as: CN101122254A; CN100529349C

Abstract

An end housing assembly of wind-cooling motors with discharging passages includes a housing(2), a grille(3) below the housing(2), a strengthening structure(21) on the front side of the housing(2), a gas outlet(32) and a cooling wind outlet(33) of the motor on the grille(3). The gas outlet(32) of the motor is disposed at the center of the cooling wind outlet(33), which is surrounded by protuberant sealing flange(31). A sealing rubber ring(5) is disposed around the sealing flange(31). The end housing assembly is lightweight and durable, and it can reduce noise, make cooling easier, and reduce product cost.

Description

Air-cooled generator set end cover assembly with discharge passage

The present invention relates to an air-cooled genset end cap assembly having a discharge passage, which belongs to the field of frames or housings of machines or equipment.

Background technique

In the prior art, the existing mobile generator sets usually adopt the following structural forms to cool and cool the unit:

1. The open frame structure can meet the heat dissipation requirements of the generator set to the utmost extent, and its manufacturing cost is low. However, the engine of this type of structure is noisy and cannot meet the requirements of some environments or environments where noise is limited;

2, closed water-cooled structure that puts the functional components of the generator set in a closed cabinet, through the cooling water tank, exhaust fan and more complicated air duct system to achieve the heat dissipation requirements of the generator, although meeting the environmental protection requirements Aesthetics, but the manufacturing process is more complicated, and the commodity price is higher;

3, closed forced air-cooled structure requires sufficient cold air to cool the high heat parts of the operating unit (such as engine cylinder head, crankcase, generator, etc.), while meeting the increasing environmental requirements, so the overall shape Beautiful, low noise, light weight, low resource consumption, simple structure and high space utilization (no need for cooling water tank and water pump), reliable performance. However, the engine exhaust ports of the currently known mobile generator sets are all arranged on the upper part of the casing, and the exhaust noise has a great influence on the nearby crowd.

Summary of the invention

The object of the present invention is to overcome the above-mentioned deficiencies, thereby providing an air-cooled generator set end cover assembly having a lower exhaust port discharge passage, which can increase the rigidity of the casing without increasing the weight, and reduce the working machine from The noise from the direction of the casing can also reduce the internal temperature of the generator set and improve the operating environment of the engine, which is conducive to long-term stable operation of the generator set.

The main solution of the invention is achieved in this way:

The invention mainly comprises a casing, characterized in that the exhaust grill is placed at the lower part of the casing, and the upper part of the casing is provided with a reinforcing structure, and the exhaust grill is provided with an engine exhaust port and a cooling exhaust port, the engine The exhaust port is located in the middle of the cooling exhaust vent, and a convex sealing flange is arranged around the cooling vent. The sealing rubber ring is tightly fitted over the sealing flange of the exhaust grill.

The reinforcing structure protrudes outwardly from the surface of the casing, and the area enclosed by the reinforcing structure outline accounts for more than one-half of the area of the upper half of the casing.

The engine exhaust port is provided with a passage, and the horizontally arranged blades of the cooling exhaust air outlet have an inclination angle of inner high and low outer, and the inclination angle is: 10 to 30°, preferably 15 ~20°.

The engine exhaust port is provided with a passage, and the passage has an inclination angle of inner high and low outer, and the inclination angle is 10 to 30°, preferably 15 to 20° with respect to the horizontal plane.

The lower part of the cover is provided with a column-shaped cover fitting hole closely matching with the exhaust grille fitting surface, and a cylindrical joint is arranged symmetrically around the cover fitting hole, and the exhaust grill is provided with the The matching hole of the cylindrical joint.

The upper part of the casing is provided with two handle holes through which the handle can pass.

The inner surface of the casing is coated with a sound absorbing layer.

The sealing rubber ring is attached to the exhaust port of the muffler cover.

The front contour shape of the exhaust grille is a rectangle with rounded corners.

The present invention has the following advantages over the prior art:

The invention has the advantages of simple structure, compactness and reasonableness; the downwardly inclined engine exhaust port and the cooling air exhaust port can reduce the noise transmitted from the casing direction of the working machine and prevent rainwater from entering the interior of the mobile generator set; The rigidity of the casing is increased without increasing the weight, and at the same time, it has a certain decorative effect; the sealing rubber ring can prevent the high temperature exhaust gas from flowing back into the casing, can reduce the internal temperature of the generator set, improve the operating environment of the engine, and is beneficial to the generator set. Long-term stable operation; Sound-absorbing coating with absorption and shielding of engine noise can reduce the impact of noise on the surrounding environment. Its flexible material can be easily cut, flattened and coated; it will exhaust, heat, reduce noise and other functions. Integrated, light and strong, not only reduces the overall weight of the generator set, reduces production costs, but also increases the added value of the product, which has great commercial and technical value.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of the application of the end cap assembly of the present invention.

Figure 2 is a schematic view of the assembly of the end cap assembly of the present invention.

Figure 3 is an exploded perspective view of the end cap assembly of the present invention.

Figure 4 is a front perspective view of the end cap assembly of the present invention. Figure 5 is a front elevational view of the end shield assembly of the present invention.

Figure 6 is a cross-sectional view taken along line A-A of Figure 5 of the present invention.

Figure 7 is a partial enlarged view of the portion I of Figure 6 of the present invention.

Figure 8 is a partial enlarged view of the B-B section of Figure 5

detailed description

The invention will now be further described in conjunction with the embodiments of the drawings - the invention consists essentially of an end cap assembly 1, a casing 2, a reinforcing structure 21, a handle aperture 22, a bolt hole yoke 23, a skirt 24, an exhaust grill 3. Sealing flange 31, engine exhaust port 32, cooling vent 33, blade 34, sound absorbing layer 4, sealing rubber ring 5, screw 6, muffler housing exhaust port 7, grid fitting surface 35 and cover The shell fitting hole 25 and the like are composed.

As shown in Figures 1 to 7, the plastic end cap assembly 1 of the present invention is composed of a casing 2, an exhaust grill 3, a sealing rubber ring 5, a screw 6, and a sound absorbing layer 4. The cover is integrally injection molded, the front side of the cover 2 is a non-expandable curved surface with a central bulge, the left and right sides have parallel arranged, structurally symmetrical side plates, the top is a slightly upwardly arched top plate, and the top plate covers the front and left sides of the cover 2 The opening on the upper side of the two sides is closed, and the portion which is approximately 15 to 20% of the height of the entire casing near the top (above the position of the handle hole 22) is configured as a pyramidal face which is gradually closed upward and is chamfered by the top surface, the pyramid The corners of the table are obtuse by the arc and the facets are convexly curved. The upper front side of the casing 2 (the lower portion of the pyramidal frustum) has a reinforcing structure 21 projecting to a certain height of its surface. The reinforcing structure 21 protrudes outward from the surface of the casing 2, and the area surrounded by the outer structure of the reinforcing structure 21 occupies more than one-half of the area of the upper half of the casing 2 for increasing the casing 2 Its own stiffness reduces vibration. For the same purpose, an equipotential skirt 24 that is inwardly converged from the surface of the casing is formed close to the bottom of the casing 2, and the bottom of the skirt 24 has an inwardly bent horizontal flange, which can be combined with the unit. The base frame is fixedly connected. The upper surface of the casing 2 is provided with a handle hole 22 parallel to the axis through which the handle of the unit passes, and a four-corner position on the back side is provided with a bolt hole yoke 23 parallel to the axis reinforced by the rib for connecting the end shield assembly 1 Pass the bolts of the work machine frame. The lower part of the casing 2 has a column-shaped casing fitting hole 25 which can be closely matched with the grill fitting surface 35, and six cylindrical spigots having small holes in the center (on the back of the casing 2) are symmetrically arranged around the hole. a plurality of assembly holes corresponding to the six cylindrical laps are disposed on the exhaust grille 3, and a set of screws 6 are respectively screwed through the assembly holes to the small holes of the cylindrical laps, The exhaust grill 3 embedded in the casing fitting hole 25 is pressed against the casing 2, and the close fitting of the casing fitting hole 25 to the grill fitting surface 35 greatly increases the rigidity of the end shield assembly 1. The front side of the exhaust grill 3 has a rectangular shape with rounded corners, and the exhaust grill 3 is provided with an engine exhaust port 32 and a cooling exhaust port 33. A cooling vent 33 for discharging the cooling airflow is disposed in the middle of the exhaust grill 3, the width of which is smaller than the total width of the exhaust grill 3, so that the cooling vent 33 also has a margin for increasing the area of the exhaust passage. The engine exhaust port 32 for exhausting the combustion exhaust gas of the engine is surrounded by the peripheral wall surface, and is relatively independent from the peripheral cooling exhaust port 33, and is disposed at the center of the cooling exhaust port 33, so that the entire exhaust grille 3 has a symmetrical layout. The engine exhaust port 32 faces the engine muffler outlet, and directs the combustion exhaust gas to be directly discharged. The cooling exhaust port 33 corresponds to the muffler cover exhaust port 7 surrounding the muffler outlet, and guides the cooling air of the engine to be discharged. The passage of the engine exhaust port 32 and the vane 34 disposed laterally in the cooling exhaust port 33 have an inner high and a low inclination angle (15 ° in this embodiment), which can guide the exhaust gas downward to reduce the discharge The influence of the air noise on the surrounding crowd can also prevent rainwater from flowing into the inside of the casing 2. The back of the exhaust grille 3 has a protruding sealing flange 31 around the cooling exhaust vent 33, and a sealing rubber ring 5 with a sealing lip is arranged thereon, and in the assembled state, the sealing rubber ring 5 is tightly pressed ( Fit) Around the muffler cover exhaust port 7, it can avoid high temperature exhaust back into the hood.

The sound absorbing layer 4 of a flexible material is also adhered to the inside of the casing 2, and the inner surface of the casing except the area where the exhaust grille 3 is located is substantially completely covered.

Claims

Rights request

1. An air-cooled generator set end cap assembly having a discharge passage, comprising a casing (2), characterized in that an exhaust grill (3) is placed in a lower portion of the casing (2), and a casing (2) is provided on the front side There is a reinforcing structure 21, an exhaust vent (32) is provided with an engine exhaust port (32) and a cooling exhaust vent (33), and an engine exhaust port (32) is located in the middle of the cooling vent (33), cooling A venting sealing flange (31) is provided around the vent (33), and the sealing ring (5) is placed over the sealing flange (31) of the exhaust grill (3).

2. An air-cooled genset end cap assembly having a discharge passage according to claim 1, wherein said reinforcing structure (21) projects outwardly from the surface of the casing and the outer structure of the reinforcing structure (21) The area enclosed by the area accounts for more than one-half of the area of the upper half of the casing (2).

3. The air-cooled genset end cap assembly with a discharge passage according to claim 1, wherein the lower portion of the casing (2) is provided with a column-shaped casing fitting hole (25) and exhaust gas. Fitted with grille mating face (35).

4. An air-cooled genset end shield assembly having a discharge passage according to claim 3, wherein said casing fitting hole (25) is symmetrically arranged with a cylindrical lap, an exhaust grille

(3) A matching hole corresponding to the cylindrical lap is provided.

An air-cooled genset end shield assembly having a discharge passage according to claim 1 or 3, characterized in that the upper portion of the casing (2) is provided with a handle hole (22) through which the handle can pass.

An air-cooled genset end cap assembly having a discharge passage according to claim 1 or 5, characterized in that the inner surface of the casing (2) is provided with a sound absorbing layer (4).

7. An air-cooled genset end cap assembly having a discharge passage according to claim 1, wherein said engine exhaust port (32) is provided with a passage having an inner high and a low inclination angle. , the angle of inclination is: 10~30°.

8. A wind turbine generator end cap assembly having a discharge passage according to claim 1, wherein said laterally disposed vanes (34) of said cooling exhaust vent (33) have an inner high and a low outer Tilt angle, tilt angle: 10~30°.

9. An air-cooled genset end cap assembly having a discharge passage according to claim 1, wherein said sealing rubber ring (5) closely conforms to a muffler housing exhaust port (7).

10. An air-cooled genset end shield assembly having a discharge passage according to claim 1, wherein said exhaust grill (3) has a frontal shape having a rectangular shape with rounded corners.