Motor rear end cover assembly of air blower for automobile air conditioner

Abstract

The utility model relates to the technical field of air blowers, and discloses a motor rear end cover assembly of an air blower for an automobile air conditioner, which comprises a rear cover, a silencing cylinder is fixedly arranged on the inner side wall of the rear cover, a plurality of partition plates are fixedly arranged on the inner wall of the silencing cylinder, and a mesh cylinder is fixedly sleeved among the inner walls of the partition plates. According to the motor rear end cover assembly for the air blower used for the automobile air conditioner, the silencing cylinder, the multiple partition plates, the net cylinder and the sound insulation felt are matched with one another, so that the good sound insulation and noise reduction effects are achieved, a motor can be quieter and more comfortable when used, and then a comfortable working environment atmosphere can be provided for workers; and meanwhile, the rear end cover assembly has a better sealing effect through mutual cooperation of the air bag and the sealing ring, and rainwater entering caused by looseness of the rear cover of the motor is avoided, so that waterproof and dustproof effects can be effectively achieved, and electronic devices in the motor are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of blowers, in particular to a motor rear end cover assembly of a blower for an automobile air conditioner. Background Art

[0002] Automobile air conditioning systems cool, heat, ventilate, and purify the air within a vehicle's cabin. They consist of a compressor, condenser, receiver-drier, expansion valve, evaporator, and blower. The blower is essential for proper operation. A key blower component is the blower motor, whose housing consists of an intermediate housing, a front cover, and a rear cover.

[0003] Currently, most motor rear end covers experience wear and tear from prolonged rotation of the rotor, which can cause the gap between the rotor, rotor portion, and rear cover to widen. This leads to increased vibration and noise. Furthermore, the noise generated by the motor during operation can be physically and mentally disturbing to nearby personnel. Therefore, those skilled in the art have provided a motor rear end cover assembly for a blower used in an automotive air conditioner to address the issues raised in the background art. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings existing in the prior art, and a rear end cover assembly of a motor for a blower for an automobile air conditioner is proposed. The rear end cover assembly of the motor for a blower for an automobile air conditioner has good sound insulation and noise reduction effects through the mutual cooperation between a silencer, multiple partitions, a mesh tube and a sound insulation felt, so that the motor can be quieter and more comfortable when in use, and thus can provide a comfortable working environment for workers. At the same time, the rear end cover assembly has a good sealing effect through the mutual cooperation between the airbag and the sealing ring, avoiding the entry of rainwater caused by the loosening of the motor rear cover, thereby effectively playing a waterproof and dustproof role to protect the electronic components inside the motor.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a rear end cover assembly of a motor of a blower for an automobile air conditioner comprises a rear cover, an inner side wall of the rear cover is fixedly provided with a silencer, an inner wall of the silencer is fixedly provided with a plurality of partitions, and a mesh tube is fixedly sleeved between the inner walls of the plurality of partitions.

[0006] Through the above technical solution, the silencer, the partition and the mesh tube cooperate with each other to effectively achieve the effect of sound insulation and noise reduction, thereby reducing the noise generated when the motor is in use.

[0007] Furthermore, a fixing ring is fixedly provided on the inner side wall of the rear cover, and an airbag is fixedly provided on the outer wall of the fixing ring;

[0008] Through the above technical solution, under the action of the airbag, it can be fitted with the motor housing, thereby achieving a sealing effect.

[0009] Furthermore, a connector is fixedly embedded in the front end surface of the rear cover, and an output end of the connector is fixedly connected to the airbag;

[0010] With the above technical solution, air can be pumped into the airbag through the connector.

[0011] Furthermore, a card slot is provided on the rear end surface of the rear cover, and a second sealing ring is fixedly provided on the inner wall of the card slot;

[0012] The above technical solution can better play the role of sealing.

[0013] Furthermore, a first sealing ring is fixedly embedded in the middle position of the inner wall of the rear cover;

[0014] The above technical solution facilitates further sealing.

[0015] Furthermore, the surface of the rear cover is provided with a sound insulation felt;

[0016] The above technical solution can achieve the effect of sound insulation and reduce the volume of noise.

[0017] The utility model has the following beneficial effects:

[0018] 1. Compared with the existing motor rear end cover assemblies of automobile air-conditioning blowers, the motor rear end cover assembly of the automobile air-conditioning blower proposed by the utility model is different from the existing motor rear end cover assemblies. When the motor rear end cover assembly of the automobile air-conditioning blower is put into use, a silencer, a partition, a mesh tube and a sound insulation felt are arranged on the rear cover. When noise is generated inside the motor, the noise will be absorbed by the silencer under the mutual action of the mesh tube and the partition. With the assistance of the sound insulation felt, the noise generated by the motor can be greatly reduced, thereby providing a quiet and comfortable environment for the staff.

[0019] 2. Compared with the existing motor rear end cover assemblies of automobile air-conditioning blowers, the motor rear end cover assembly of the automobile air-conditioning blower proposed by the utility model is more efficient. When the motor rear end cover assembly of the automobile air-conditioning blower is put into use, under the action of the fixing ring, air is pumped into the air bag through the connecting head so that it fits tightly with the inner wall of the motor housing. Under the mutual cooperation of the first sealing ring and the second sealing ring, it can better play a sealing role, thereby achieving the role of waterproofing and dustproofing, and protecting the inside of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an exploded view of the motor rear end cover assembly of the blower for automobile air conditioning proposed by the utility model;

[0021] Figure 2 This is a front view of the motor rear end cover assembly of the blower for automobile air conditioning proposed by the utility model;

[0022] Figure 3 This is a rear view of the motor rear end cover assembly of the blower for automobile air conditioning proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the second sealing ring of the motor rear end cover assembly of the blower for automobile air conditioner proposed by the utility model;

[0024] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0025] Legend:

[0026] 1. Back cover; 2. Card slot; 3. Airbag; 4. Fixing ring; 5. First sealing ring; 6. Silencer; 7. Partition; 8. Mesh tube; 9. Second sealing ring; 10. Connector; 11. Sound insulation felt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figure 1 The utility model provides an embodiment: a rear end cover assembly of a motor of a blower for an automobile air conditioner, comprising a rear cover 1, a silencer 6 fixedly provided on the inner wall of the rear cover 1, a plurality of partitions 7 fixedly provided on the inner wall of the silencer 6, a mesh tube 8 fixedly sleeved between the inner walls of the plurality of partitions 7, and the mutual cooperation between the silencer 6, the partitions 7 and the mesh tube 8 can effectively play a role in sound insulation and noise reduction, thereby reducing the noise generated when the motor is in use.

[0029] Reference Figure 2-3A fixing ring 4 is fixedly provided on the inner wall of the rear cover 1, and an airbag 3 is fixedly provided on the outer wall of the fixing ring 4. Under the action of the airbag 3, it can be fitted with the motor housing, thereby playing a sealing role. A connector 10 is fixedly embedded in the front end face of the rear cover 1, and the output end of the connector 10 is fixedly connected to the airbag 3. Air can be pumped into the airbag 3 through the connector 10. A card slot 2 is provided on the rear end face of the rear cover 1, and a second sealing ring 9 is fixedly provided on the inner wall of the card slot 2, which can better play a sealing role. A first sealing ring 5 is fixedly embedded in the middle position of the inner wall of the rear cover 1 for further sealing. A sound insulation felt 11 is provided on the surface of the rear cover 1, which can play a sound insulation role and reduce the volume of noise.

[0030] Working principle: When the present invention is in use, the rear cover 1 is first installed at the rear end of the motor housing. When the motor generates noise during operation, the noise enters from one end of the mesh tube 8. Under the action of multiple partitions 7, the noise can be absorbed by the silencer 6. Under the action of the sound insulation felt 11, the noise generated by the motor can be greatly reduced. Under the mutual cooperation of the first sealing ring 5 and the second sealing ring 9, a better sealing effect can be achieved. The connector 10 is used to pump air into the airbag 3, so that the airbag 3 expands and fits tightly against the inner wall of the motor housing, thereby achieving a waterproof and dustproof effect and protecting the interior of the motor.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rear end cover assembly of a motor for a blower for an automobile air conditioner, comprising a rear cover (1), characterized in that: A silencer (6) is fixedly provided on the inner wall of the rear cover (1), a plurality of partitions (7) are fixedly provided on the inner wall of the silencer (6), and a mesh tube (8) is fixedly sleeved between the inner walls of the plurality of partitions (7).

2. The motor rear end cover assembly of the blower for automobile air conditioning according to claim 1, characterized in that: A fixing ring (4) is fixedly provided on the inner side wall of the rear cover (1), and an air bag (3) is fixedly provided on the outer wall of the fixing ring (4).

3. The motor rear end cover assembly of the blower for automobile air conditioning according to claim 1, characterized in that: A connector (10) is fixedly embedded in the front end surface of the rear cover (1), and an output end of the connector (10) is fixedly connected to the airbag (3).

4. The motor rear end cover assembly of the blower for automobile air conditioning according to claim 1, characterized in that: A card slot (2) is provided on the rear end surface of the rear cover (1), and a second sealing ring (9) is fixedly provided on the inner wall of the card slot (2).

5. The motor rear end cover assembly of the blower for automobile air conditioning according to claim 1, characterized in that: A first sealing ring (5) is fixedly embedded in the middle of the inner wall of the rear cover (1).

6. The motor rear end cover assembly of the blower for automobile air conditioning according to claim 1, characterized in that: A sound insulation felt (11) is provided on the surface of the rear cover (1).

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