CN218041034U - Motor end cover of blower of automobile air conditioner - Google Patents
Motor end cover of blower of automobile air conditioner Download PDFInfo
- Publication number
- CN218041034U CN218041034U CN202222110623.7U CN202222110623U CN218041034U CN 218041034 U CN218041034 U CN 218041034U CN 202222110623 U CN202222110623 U CN 202222110623U CN 218041034 U CN218041034 U CN 218041034U
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- air inlet
- air
- end cover
- commutator
- inlet baffle
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Abstract
The utility model relates to an automobile air conditioner air-blower motor end cover. The problem of the commutator in the current vehicle air conditioner air-blower motor directly blown by cold air and can produce "creak" abnormal sound noise has mainly been solved. The method is characterized in that: be equipped with air inlet baffle (6) on bottom plate (2) between air inlet window (4) and bearing mounting hole (5), the radian of air inlet baffle (6) is not less than the radian of air inlet window (4), the height of air inlet baffle (6) is not less than the length of commutator. The utility model discloses set up the air inlet baffle, the air inlet baffle is corresponding with the air inlet window that cold air directly blows, can effectively avoid cold air to directly blow to the commutator, has improved commutator life, does not influence the heat exchange in the end cover simultaneously, has compromise the motor heat dissipation when having eliminated the abnormal sound noise, has simple structure, with low costs and motor long service life's characteristics.
Description
Technical Field
The utility model relates to an air conditioner accessory, concretely relates to air-blower motor end cover of automobile air conditioner.
Background
The automobile air conditioner is a device for refrigerating, heating, ventilating and purifying air in a carriage, can provide comfortable riding environment for passengers, reduces the fatigue strength of a driver and improves the driving safety. At present, the automobile air conditioner used on a small-sized passenger car is widely in a cooling and heating integrated structure, and comprises an evaporator, a warm air radiator, a centrifugal blower and a control system, wherein the centrifugal blower is a more critical component, and the performance of the centrifugal blower directly influences the functions of the automobile air conditioner, such as refrigeration, heating, ventilation, air purification and the like. The existing air conditioner blower motor comprises a motor shell, a commutator, a carbon brush assembly and an end cover, in order to facilitate heat dissipation of a coil in the motor shell, an air inlet window is usually arranged on the side wall of the end cover, and the commutator and the carbon brush assembly are located in the end cover. After the centrifugal blower is assembled, the end cover of the motor of the air conditioner blower is just positioned at the position of the air inlet of the centrifugal blower, when the centrifugal blower is used, cold air is directly blown on the end cover from the air inlet on the shell of the centrifugal blower, then the cold air enters the centrifugal fan blade of the centrifugal blower along the axial direction, and the cold air is blown out from the air outlet under the action of the centrifugal fan blade. Because be provided with the air inlet window on the end cover, cold air gets into on the air inlet window can directly blow the commutator, causes the commutator surface to frost, and tiny granule and the impurity that contains in the cold air also can the adhesion on the commutator surface simultaneously for smooth commutator surface produces certain roughness originally, and commutator and carbon brush subassembly friction will produce intermittent "squeak" abnormal sound noise when air conditioner air-blower motor operation, especially use vehicle air conditioner in the cold season in the north, above-mentioned phenomenon is especially obvious. Based on the above technical problem, if the diversion direction of the cold air is changed, the cold air directly flows to the centrifugal fan blade along the side wall of the housing without passing through the end cover of the air conditioner blower motor, which will make the heat dissipation effect of the motor poor and affect the service life of the motor, for example, in the chinese patent 201620163697.9, the cooling air enters the centrifugal fan blade from between the motor housing and the housing along the arc-shaped diversion plate, and the cooling air will not flow through the inside of the end cover, although the problem of abnormal noise of the motor is solved, the problem of poor heat dissipation effect of the motor is generated therewith. Therefore, the utility model provides a can eliminate abnormal sound noise and compromise radiating vehicle air conditioner air-blower motor end cover of motor simultaneously.
SUMMERY OF THE UTILITY MODEL
In order to solve the commutator among the current vehicle air conditioner air-blower motor and directly blow by the cold air and can produce the problem of "creak" abnormal sound noise, the utility model provides a vehicle air conditioner air-blower motor end cover, this vehicle air conditioner air-blower motor end cover has set up the air inlet baffle, and the air inlet baffle is corresponding with the air inlet window that the cold air directly blows, can effectively avoid the cold air to directly blow to the commutator, has improved commutator life, does not influence the heat exchange in the end cover simultaneously, has compromise the motor heat dissipation when having eliminated the abnormal sound noise, has simple structure, with low costs and motor long service life's characteristics.
The technical scheme of the utility model is that: the utility model provides an automobile air conditioner air-blower motor end cover, includes the end cover body, be equipped with bottom plate and lateral wall on the end cover body, be equipped with the air inlet window corresponding with the cold air intake on the lateral wall, the center of bottom plate is equipped with bearing mounting hole, its characterized in that: an air inlet baffle is arranged on the bottom plate between the air inlet window and the bearing mounting hole, the radian of the air inlet baffle is not less than that of the air inlet window, and the height of the air inlet baffle is not less than the length of the commutator.
The air inlet baffle is arc-shaped.
The surface of the air inlet baffle corresponding to the air inlet window is a conical surface.
The utility model discloses following beneficial effect has: due to the adoption of the technical scheme, cold air enters the end cover body from the air inlet window and is blocked by the air inlet baffle plate, and the cold air travels along the side walls from the two sides of the air inlet baffle plate, so that the direct blowing of the cold air to the commutator is effectively avoided, the commutator cannot generate sudden temperature change due to the fact that the cold air cannot be directly contacted with the commutator, the commutator cannot frost, fine particles and impurities contained in the cold air cannot be adhered to the surface of the commutator, and the service life of the commutator is prolonged; and meanwhile, the cold air and the hot air in the end cover body exchange heat and flow out from other air inlet windows, and finally the cold air reaches the centrifugal fan blades from the axial flow air channel between the motor shell and the blower shell and is blown out from the air outlet. The utility model discloses do not influence the heat exchange in the end cover, compromise the motor heat dissipation when having eliminated the abnormal sound noise, have simple structure, with low costs and motor long service life's characteristics.
Drawings
Fig. 1 is a structural sectional view of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a right side view of fig. 1.
Fig. 4 is a perspective view of the present invention.
In the figure, 1-an end cover body, 2-a bottom plate, 3-a side wall, 4-an air inlet window, 5-a bearing mounting hole, 6-an air inlet baffle and 7-an air exhaust window.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 to 4, an end cover of a blower motor of an automobile air conditioner comprises an end cover body 1, wherein a bottom plate 2 and a side wall 3 are arranged on the end cover body 1, an air inlet window 4 corresponding to a cold air inlet is arranged on the side wall 3, an air exhaust window 7 is also arranged on the side wall 3, and a bearing mounting hole 5 is arranged at the center of the bottom plate 2, and the end cover is characterized in that: an air inlet baffle 6 is arranged on the bottom plate 2 between the air inlet window 4 and the bearing mounting hole 5, the radian of the air inlet baffle 6 is not smaller than that of the air inlet window 4, and the height of the air inlet baffle 6 is not smaller than the length of the commutator. Due to the adoption of the technical scheme, cold air enters the end cover body 1 from the air inlet window 4 and is blocked by the air inlet baffle 6, the cold air advances along the side wall 3 from the two sides of the air inlet baffle 6, the direct blowing of the cold air to the commutator is effectively avoided, the commutator cannot generate sudden temperature change due to the fact that the cold air cannot be directly contacted with the commutator, the commutator cannot frost, fine particles and impurities contained in the cold air cannot be adhered to the surface of the commutator, and the service life of the commutator is prolonged; meanwhile, cold air and hot air in the end cover body 1 exchange heat and flow out of the air exhaust window 7, and finally the cold air reaches the centrifugal fan blades from the axial flow air channel between the motor shell and the blower shell and is blown out of the air outlet. The utility model discloses do not influence the heat exchange in the end cover, compromise the motor heat dissipation when having eliminated the abnormal sound noise, have simple structure, with low costs and motor long service life's characteristics.
The air inlet baffle 6 is arc-shaped. The shape of the air intake baffle 6 facilitates the cold air to travel along the side wall 3 and exchange heat with the air in the end cover body 1.
The surface of the air inlet baffle 6 corresponding to the air inlet window 4 is a conical surface. The axial flow direction space grow of cold air can reduce the velocity of flow of cold air, has increased the hot air heat exchange's in cold air and the end cover body 1 time, does benefit to the motor heat dissipation.
Claims (3)
1. The utility model provides an automobile air conditioner air-blower motor end cover, includes end cover body (1), be equipped with bottom plate (2) and lateral wall (3) on end cover body (1), be equipped with on lateral wall (3) with corresponding air inlet window (4) of cold air intake, the center of bottom plate (2) is equipped with bearing mounting hole (5), its characterized in that: be equipped with air inlet baffle (6) on bottom plate (2) between air inlet window (4) and bearing mounting hole (5), the radian of air inlet baffle (6) is not less than the radian of air inlet window (4), the height of air inlet baffle (6) is not less than the length of commutator.
2. The motor end cover of the blower of the automobile air conditioner as claimed in claim 1, wherein: the air inlet baffle (6) is arc-shaped.
3. The motor end cover of the blower of the automobile air conditioner as claimed in claim 1 or 2, wherein: the surface of the air inlet baffle (6) corresponding to the air inlet window (4) is a conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222110623.7U CN218041034U (en) | 2022-08-11 | 2022-08-11 | Motor end cover of blower of automobile air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222110623.7U CN218041034U (en) | 2022-08-11 | 2022-08-11 | Motor end cover of blower of automobile air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218041034U true CN218041034U (en) | 2022-12-13 |
Family
ID=84345430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222110623.7U Active CN218041034U (en) | 2022-08-11 | 2022-08-11 | Motor end cover of blower of automobile air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218041034U (en) |
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2022
- 2022-08-11 CN CN202222110623.7U patent/CN218041034U/en active Active
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