Shockproof structure of automobile motor brush carrier

Abstract

The utility model provides a shockproof structure of an automobile motor brush carrier, which comprises a main body assembly, the main body assembly comprises a motor shell, fixing plates and a first buffer pad, the inner side wall of the motor shell is uniformly and fixedly connected with the fixing plates, and one side of each fixing plate is fixedly connected with the first buffer pad; a brush carrier assembly is arranged in the main body assembly, the brush carrier assembly comprises a brush carrier main body, connecting plates, first bolts, a bottom plate, a second buffer pad and a supporting plate, and the connecting plates are uniformly and fixedly connected to the brush carrier main body. According to the utility model, the first buffer pad is arranged between the brush carrier and the motor shell support, so that collision between the brush carrier and the motor shell can be avoided, vibration during operation of the motor is reduced, abrasion of the brush carrier is reduced, and the service life of the brush carrier is prolonged. The electric brush is compressed by the spring, and the second buffer pad is arranged between the electric brush and the brush carrier, so that vibration generated during relative movement between the electric brush and the commutator is further reduced, and stable operation of the motor is ensured.

Description

Technical Field

[0001] The utility model relates to a shockproof structure, in particular to a shockproof structure of an automobile motor brush holder, belonging to the technical field of motor brush holders. Background Art

[0002] As the core component inside the motor, the motor brush holder is responsible for installing and stabilizing the brushes, ensuring precise contact between the brushes and the commutator to maintain the stability of current transmission and prevent sparking and commutation failures caused by poor contact. Its design covers a variety of types, such as tube type, disc spring type and cartridge type, to meet the operating requirements of different motors. In terms of material, motor brush holders are often made of high-strength, corrosion-resistant materials, such as carbon brush holders and silver-plated copper brush holders, to improve service life and performance.

[0003] During use of the existing motor brush holder, since the brush and the commutator maintain a state of relative motion when the motor is working, collision will occur between the motor brush holder and the motor housing, resulting in noise when the motor is working, affecting the overall running stability of the equipment, and long-term collision will accelerate the wear of the motor brush holder and related components and shorten their service life. Therefore, an anti-vibration structure of an automobile motor brush holder is proposed. Utility Model Content

[0004] In view of this, the utility model provides a shockproof structure of an automobile motor brush holder to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0005] The technical solution of the embodiment of the utility model is implemented as follows: an anti-vibration structure of an automobile motor brush holder comprises a main body assembly, the main body assembly comprises a motor housing, a fixing plate and a first buffer pad, the inner side wall of the motor housing is evenly fixedly connected with the fixing plate, and one side of the fixing plate is fixedly connected with the first buffer pad;

[0006] A brush holder assembly is arranged inside the main assembly, and the brush holder assembly includes a brush holder body, a connecting plate, a first bolt, a bottom plate, a second buffer pad and a support plate. The connecting plate is evenly fixedly connected to the brush holder body, and the connecting plate is fixedly connected to the first buffer pad by the first bolt. The bottom of the brush holder body is fixedly connected to the bottom plate, and the upper surface of the bottom plate is fixedly connected to the second buffer pad. Two support plates are symmetrically arranged on the upper surface of the second buffer pad. During installation, the brush holder body is placed into the motor housing, the brush holder body is fixed by the first bolt, the support plate is placed on the second buffer pad, and the support plate is fixed by the second bolt to complete the assembly of the brush holder and the brush. By arranging the first buffer pad on the brush holder and the motor housing bracket, collision between the brush holder and the motor housing can be avoided.

[0007] Further preferably, the support plate is fixedly connected to the second buffer pad via a second bolt.

[0008] Further preferably: the brush holder assembly further includes a sleeve, a spring and a brush;

[0009] A sleeve is fixedly connected to the upper surface of the support plate, a spring is symmetrically fixedly connected to the inner side wall of the sleeve, and a brush is fixedly connected to one end of the spring.

[0010] Further preferably, the brush is slidably connected to the inner wall of the sleeve.

[0011] Further preferably, the main body assembly further comprises an end cover, and the end cover is fixedly connected to the bottom of the motor housing.

[0012] Further preferably, a bearing is fixedly connected to the inner side wall of the end cover.

[0013] Further preferably, the bearing is internally rotatably connected to a motor shaft.

[0014] Further preferably, a commutator is installed on the outer side wall of the motor shaft, and the two brushes are arranged on the outer side wall of the commutator.

[0015] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0016] 1. The utility model can avoid collision between the brush holder and the motor housing by arranging the first buffer pad on the brush holder and the motor housing bracket, reduce vibration when the motor is working, reduce wear of the brush holder, and extend the service life of the brush holder.

[0017] Second, the utility model compresses the brush by means of a spring and at the same time provides a second buffer pad between the brush and the brush holder, so as to further reduce the vibration generated during the relative movement between the brush and the commutator and ensure the smooth operation of the motor.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a diagram showing the internal structure of the motor housing of the utility model;

[0022] Figure 3 This is an enlarged structural diagram of point A of the utility model;

[0023] Figure 4 This is a diagram showing the internal structure of the sleeve of the present utility model.

[0024] Figure numerals: 10, main body assembly; 11, motor housing; 12, end cover; 13, bearing; 14, motor shaft; 15, commutator; 16, fixing plate; 17, first buffer pad; 20, brush holder assembly; 21, brush holder body; 22, connecting plate; 23, first bolt; 24, bottom plate; 25, second buffer pad; 26, support plate; 27, second bolt; 28, sleeve; 29, spring; 210, brush. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, the embodiment of the utility model provides a shockproof structure of a motor brush holder of an automobile, including a main body assembly 10, the main body assembly 10 includes a motor housing 11, a fixing plate 16 and a first buffer pad 17, the inner side wall of the motor housing 11 is evenly fixedly connected with the fixing plate 16, and one side of the fixing plate 16 is fixedly connected with the first buffer pad 17;

[0028] A brush holder assembly 20 is arranged inside the main assembly 10, and the brush holder assembly 20 includes a brush holder body 21, a connecting plate 22, a first bolt 23, a bottom plate 24, a second buffer pad 25 and a support plate 26. The connecting plate 22 is evenly fixedly connected to the brush holder body 21, and the connecting plate 22 is fixedly connected to the first buffer pad 17 by the first bolt 23. The bottom of the brush holder body 21 is fixedly connected to the bottom plate 24, and the upper surface of the bottom plate 24 is fixedly connected to the second buffer pad 25. Two support plates 26 are symmetrically arranged on the upper surface of the second buffer pad 25. During installation, the brush holder body 21 is placed into the motor housing 11, the brush holder body 21 is fixed by the first bolt 23, the support plate 26 is placed on the second buffer pad 25, and the support plate 26 is fixed by the second bolt 27 to complete the assembly of the brush holder and the brush 210. By arranging the first buffer pad 17 between the brush holder and the motor housing 11 bracket, collision between the brush holder and the motor housing 11 can be avoided.

[0029] In this embodiment, specifically: the support plate 26 is fixedly connected to the second buffer pad 25 by the second bolt 27, and the second buffer pad 25 is arranged between the brush 210 and the brush holder to further reduce the vibration generated during the relative movement between the brush 210 and the commutator 15, thereby ensuring the smooth operation of the motor.

[0030] In this embodiment, specifically: the brush holder assembly 20 further includes a sleeve 28, a spring 29 and a brush 210;

[0031] A sleeve 28 is fixedly connected to the upper surface of the support plate 26 , a spring 29 is symmetrically fixedly connected to the inner wall of the sleeve 28 , and a brush 210 is fixedly connected to one end of the spring 29 , and the brush 210 is pressed by the spring 29 .

[0032] In this embodiment, specifically: the brush 210 is slidably connected to the inner wall of the sleeve 28 , and the brush 210 is pressed by the spring 29 to ensure the connection between the brush 210 and the commutator 15 .

[0033] In this embodiment, specifically: the main body assembly 10 further includes an end cover 12 , and the end cover 12 is fixedly connected to the bottom of the motor housing 11 .

[0034] In this embodiment, specifically: a bearing 13 is fixedly connected to the inner wall of the end cover 12 , and the bearing 13 is used to reduce the friction resistance when the motor shaft 14 rotates.

[0035] In this embodiment, specifically: the bearing 13 is internally rotatably connected with a motor shaft 14, and the motor shaft 14 is used to output the torque of the motor.

[0036] In this embodiment, specifically: a commutator 15 is installed on the outer wall of the motor shaft 14, and two brushes 210 are arranged on the outer wall of the commutator 15. The brushes 210 serve as sliding contacts for importing and exporting current, and are in close contact with the commutator segments on the commutator 15. When external power is applied to the motor through the brushes 210, the current enters the commutator 15 through the brushes 210, and is then distributed to the armature winding through the commutator 15, thereby generating a rotating magnetic field to drive the motor to rotate.

[0037] During installation, the utility model is as follows: the brush holder body 21 is placed inside the motor housing 11, the brush holder body 21 is fixed by the first bolt 23, the support plate 26 is placed on the second buffer pad 25, the support plate 26 is fixed by the second bolt 27, and the assembly of the brush holder and the brush 210 is completed; by arranging the first buffer pad 17 between the brush holder and the motor housing 11 bracket, it is possible to avoid collision between the brush holder and the motor housing 11, reduce vibration during motor operation, reduce wear of the brush holder, and extend the service life of the brush holder; the brush 210 is pressed by the spring 29, and the second buffer pad 25 is arranged between the brush 210 and the brush holder, so as to further reduce vibration generated during relative movement between the brush 210 and the commutator 15, and ensure smooth operation of the motor.

[0038] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A shockproof structure for a brush holder of an automobile motor, comprising a main body assembly (10), characterized in that: The main body assembly (10) comprises a motor housing (11), a fixing plate (16) and a first buffer pad (17); the inner side wall of the motor housing (11) is evenly fixedly connected to the fixing plate (16); and one side of the fixing plate (16) is fixedly connected to the first buffer pad (17); A brush holder assembly (20) is arranged inside the main assembly (10), and the brush holder assembly (20) comprises a brush holder body (21), a connecting plate (22), a first bolt (23), a bottom plate (24), a second buffer pad (25) and a support plate (26). The connecting plate (22) is evenly fixedly connected to the brush holder body (21), and the connecting plate (22) is fixedly connected to the first buffer pad (17) via the first bolt (23). The bottom of the brush holder body (21) is fixedly connected to the bottom plate (24), and the upper surface of the bottom plate (24) is fixedly connected to the second buffer pad (25), and the upper surface of the second buffer pad (25) is symmetrically provided with two support plates (26).

2. The anti-vibration structure of the automobile motor brush holder according to claim 1, characterized in that: The support plate (26) is fixedly connected to the second buffer pad (25) via a second bolt (27).

3. The anti-vibration structure of the automobile motor brush holder according to claim 1, characterized in that: The brush holder assembly (20) further comprises a sleeve (28), a spring (29) and a brush (210); The upper surface of the support plate (26) is fixedly connected to a sleeve (28), the inner side wall of the sleeve (28) is symmetrically fixedly connected to a spring (29), and one end of the spring (29) is fixedly connected to a brush (210).

4. The anti-vibration structure of the automobile motor brush holder according to claim 3 is characterized in that: The brush (210) is slidably connected to the inner wall of the sleeve (28).

5. The anti-vibration structure of the automobile motor brush holder according to claim 3 is characterized in that: The main body assembly (10) further comprises an end cover (12), and the bottom of the motor housing (11) is fixedly connected to the end cover (12).

6. The anti-vibration structure of the automobile motor brush holder according to claim 5, characterized in that: A bearing (13) is fixedly connected to the inner side wall of the end cover (12).

7. The anti-vibration structure of the automobile motor brush holder according to claim 6, characterized in that: The bearing (13) is rotatably connected to a motor shaft (14).

8. The anti-vibration structure of the automobile motor brush holder according to claim 7, characterized in that: A commutator (15) is installed on the outer side wall of the motor shaft (14), and the two brushes (210) are arranged on the outer side wall of the commutator (15).

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