Double anti-vibration brush frame type automobile air conditioner fan

Abstract

The utility model discloses a double shockproof brush carrier type automobile air conditioner fan which comprises a tray, a wind wheel and a motor, the motor is installed on the tray, the wind wheel is installed on a rotating shaft of the motor, the motor comprises a shell, brush carriers, a rotor, a stator and an end cover, the rotating shaft is arranged on the rotor, the brush carriers are provided with clamping grooves which are evenly distributed on the circumference, and annular rubber damping blocks are installed on the clamping grooves. The end cover is made of plastic, a buffering hole corresponding to the rubber damping block is formed in the end cover, an L-shaped connecting rod is connected to the inner wall of the buffering hole, and the end of the connecting rod is inserted into an inner hole of the rubber damping block. The L-shaped connecting rod on the end cover can swing along the inner hole space of the buffer hole for buffering, and the rubber damping block has self-elasticity for buffering, so that the brush carrier has a double-layer damping and buffering effect, and the purposes of enhancing the stability and reducing looseness and abnormal sound are achieved.

Description

Technical Field

[0001] The utility model relates to a component of an automobile air-conditioning system, in particular to a double-vibration-proof brush holder type automobile air-conditioning fan. Background Art

[0002] The existing automobile air-conditioning fans are mainly used to increase the air volume of the car and adjust the temperature inside the car. However, the existing vehicle users have higher and higher requirements on the noise of the vehicle, and the number of automobile air-conditioning fans in the car is also large. When the motor of the automobile air-conditioning fan drives the wind wheel to rotate, a large torque will be generated, especially in the initial stage. The main reason is that when the motor shaft rotates suddenly at the beginning, the torque is large and will be directly transmitted to the brush holder. At the same time, the wind wheel has a certain weight and shape deviation, which will cause swinging and abnormal noise. After long-term operation, it will cause the brush holder to loosen. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a double-shockproof brush holder type automobile air-conditioning fan, which aims to reduce abnormal noise of the automobile fan and prevent the brush holder from loosening.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-shockproof brush holder type automobile air-conditioning fan, comprising a tray, a wind wheel and a motor, the motor being mounted on the tray, the wind wheel being mounted on the rotating shaft of the motor, the motor comprising a housing, a brush holder, a rotor, a stator and an end cover, the brush holder being provided with circumferentially evenly distributed clamping grooves, an annular rubber shock-absorbing block being installed on the clamping groove, the end cover being made of plastic, the end cover being provided with a buffer hole corresponding to the rubber shock-absorbing block, an "L"-shaped connecting rod being connected to the inner wall of the buffer hole, and the end of the connecting rod being inserted into the inner hole of the rubber shock-absorbing block.

[0005] The end of the connecting rod is provided with a conical clamping block, and the rubber shock-absorbing block passes through the clamping block and is sleeved on the connecting rod.

[0006] The clamping groove is a flat circular groove, and the side wall of the circular groove is provided with an opening. The peripheral wall of the rubber damping block is provided with an annular ring groove. The rubber damping block is squeezed into the clamping groove through the opening, and the annular groove of the rubber damping block cooperates with the inner wall of the clamping groove.

[0007] The beneficial effects of the utility model are as follows: the "L"-shaped connecting rod on the end cover can swing along the inner hole space of the buffer hole, and the rubber shock-absorbing block has its own elastic buffering, so that the brush holder can have a double-layer shock-absorbing and buffering effect, so that the huge torque generated when the motor is initially started can be sufficiently buffered to a certain extent. At the same time, the connecting rod and the rubber shock-absorbing block cooperate with the clamping block designed at the front end to reduce the vibration of the brush holder during rotation, thereby achieving the purpose of enhancing stability and reducing looseness and abnormal noise.

[0008] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A three-dimensional diagram of a specific implementation of the utility model;

[0010] Figure 2 It is an exploded view of a motor according to a specific embodiment of the utility model;

[0011] Figure 3 It is a three-dimensional diagram of the end cover in a specific embodiment of the utility model;

[0012] Figure 4 It is a three-dimensional diagram of a brush holder in a specific implementation manner of the utility model. DETAILED DESCRIPTION

[0013] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

[0014] like Figure 1 — Figure 4 As shown, the present embodiment discloses a double-shockproof brush holder type automobile air-conditioning fan, comprising a tray 1, a wind wheel 2 and a motor 3, wherein the motor 3 is mounted on the tray 1, and the wind wheel 2 is mounted on the rotating shaft of the motor 3, the motor 3 comprises a housing 31, a brush holder 32, a rotor 33, a stator 34 and an end cover 35, the rotating shaft is arranged on the rotor 33 and passes through the brush holder, the rotor is arranged in the inner hole of the stator, the stator is placed in the housing, the end cover is arranged at one end of the housing, the brush holder 32 is provided with circumferentially uniformly distributed clamping grooves 321, an annular rubber shock-absorbing block 4 is installed on the clamping groove 321, the end cover 35 is made of plastic, and a buffer hole 5 corresponding to the rubber shock-absorbing block 4 is arranged on the end cover 35, an "L"-shaped connecting rod 6 is connected to the inner wall of the buffer hole 5, and the end of the connecting rod 6 is inserted into the inner hole of the rubber shock-absorbing block 4.

[0015] The end of the connecting rod 6 is provided with a conical block 61, thereby forming a position for cooperating with the rubber damping block. The structure of the connecting rod 6 at the buffer hole 5 is in a plate shape, and the rubber damping block 4 passes through the block 61 and is sleeved on the connecting rod 6 to prevent the rubber damping block from detaching. This can facilitate the installation of the rubber damping block 4 and make the cooperation between the rubber damping block 4 and the connecting rod 6 more reliable and stable, reducing the vibration of the brush holder 32 when the shaft rotates.

[0016] The clamping groove 321 is a flat circular groove, and an opening is set on the side wall of the circular groove. An annular ring groove is set on the peripheral wall of the rubber damping block 4. The rubber damping block 4 is squeezed into the clamping groove 321 through the opening, and the annular groove of the rubber damping block 4 is matched with the inner wall of the clamping groove 321. This structure can make the installation of the rubber damping block 4 more convenient and reliable.

[0017] By adopting the above technical solution, the "L"-shaped connecting rod 6 on the end cover 35 can swing and buffer along the inner hole space of the buffer hole 5, and the rubber shock-absorbing block 4 can provide its own elastic buffering, so that the brush holder 32 can have a double-layer shock-absorbing and buffering effect, so that the huge torque generated when the motor 3 is initially started can be sufficiently buffered to a certain extent. At the same time, the connecting rod 6 and the rubber shock-absorbing block 4 cooperate with the block 61 designed at the front end to reduce the vibration of the brush holder 32 during rotation, thereby achieving the purpose of enhancing stability and reducing looseness and abnormal noise.

[0018] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0019] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-shockproof brush holder type automobile air-conditioning fan, comprising a tray, a wind wheel and a motor, wherein the motor is mounted on the tray, the wind wheel is mounted on the rotating shaft of the motor, and the motor comprises a housing, a brush holder, a rotor, a stator and an end cover, characterized in that: The brush holder is provided with clamping grooves evenly distributed around the circumference, an annular rubber shock-absorbing block is installed on the clamping groove, the end cover is made of plastic material, a buffer hole corresponding to the rubber shock-absorbing block is provided on the end cover, an "L"-shaped connecting rod is connected to the inner wall of the buffer hole, the end of the connecting rod is inserted into the inner hole of the rubber shock-absorbing block, the clamping groove is a flat circular groove, and an opening is provided on the side wall of the circular groove, an annular ring groove is provided on the peripheral wall of the rubber shock-absorbing block, the rubber shock-absorbing block is squeezed into the clamping groove through the opening, and the annular groove of the rubber shock-absorbing block cooperates with the inner wall of the clamping groove.

2. The double-shockproof brush holder type automobile air conditioning fan according to claim 1 is characterized in that: The end of the connecting rod is provided with a conical clamping block, and the rubber shock-absorbing block passes through the clamping block and is sleeved on the connecting rod.

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