Solid bushing of motor

By designing an annular structure and a W-shaped cross-section in the solid bushing of the motor, and combining a metal inner sleeve and a plastic outer sleeve, the problem of poor vibration isolation function in the existing technology is solved and a better vibration isolation effect is achieved.

CN223487975UActive Publication Date: 2025-10-28BOGE RUBBER & PLASTICS (WUXI) CO LTD
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Patent Information

Application Number
CN202422918229.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-10-28
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

The existing motor solid bushing has a high dynamic-static ratio and poor vibration isolation performance.

Method used

A motor solid bushing is designed, which adopts an annular structure, a first structure and a second structure. The rubber is provided with a W-shaped cross-section between the two structures, and consists of a metal inner sleeve and a plastic outer sleeve, which are connected by vulcanization.

Benefits of technology

A low dynamic-static ratio characteristic is achieved, and vibration isolation performance is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

A solid bushing of a motor comprises an inner sleeve, an outer sleeve and rubber. The rubber is arranged between the inner sleeve and the outer sleeve and is connected with the inner sleeve and the outer sleeve through vulcanization; a first structure is arranged on the side, close to the inner sleeve, of the rubber, a second structure is arranged on the side, close to the outer sleeve, of the rubber, and the rubber is provided with an annular structure between the first structure and the second structure. The section, at the first structure, the second structure and the annular structure, of the rubber is in a W shape, the annular structure is arranged between the first structure and the second structure, the length of the first structure is larger than that of the annular structure, and the length of the annular structure is larger than that of the second structure. By arranging the annular structure, the first structure and the second structure, the vibration isolator has the characteristic of low dynamic-static ratio and can better isolate vibration.
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Description

Technical Field

[0001] This utility model relates to the field of motor bushing technology, and in particular to a solid motor bushing. Background Technology

[0002] Solid motor bushings play a crucial role in the connection between the motor and the vehicle body. As a connecting component, the solid motor bushing is primarily used to connect the motor and the vehicle body. In electric or hybrid vehicles, the motor is the key component propelling the vehicle forward, and a stable connection between the motor and the body is essential. The solid motor bushing is designed to meet this need, ensuring that the motor can stably and efficiently transmit power to the wheels. Through its elastic properties, the solid motor bushing absorbs and disperses vibrations and shocks from the road surface, protecting the motor and the vehicle body from damage. The design of the solid motor bushing ensures a precise connection between the motor and the body, enabling efficient power transmission and reducing energy loss. During vehicle operation, the solid motor bushing maintains a stable relative position between the motor and the body, preventing loosening or displacement due to vibration or impact. Regularly inspecting and replacing worn bushings ensures that the connection between the motor and the body remains in optimal condition, thereby extending the lifespan of the entire powertrain. As a critical connecting component between the motor and the vehicle body, the solid motor bushing plays a vital role in electric or hybrid vehicles.

[0003] Existing solid bushings for motors have high dynamic-to-static ratio characteristics but poor vibration isolation performance.

[0004] Therefore, we propose a solid bushing for motors. Utility Model Content

[0005] In response to the shortcomings of the existing production technology, the applicant provides a solid motor bushing with a ring structure, a first structure, and a second structure, which has a low dynamic-to-static ratio and can better isolate vibration.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A solid bushing for an electric motor, characterized in that it comprises:

[0008] Inner sleeve;

[0009] coat;

[0010] Rubber is placed between the inner and outer sleeves, and the inner and outer sleeves are connected by vulcanization.

[0011] Among them, the rubber has a first structure on the side near the inner sleeve, a second structure on the side near the outer sleeve, and an annular structure between the first structure and the second structure.

[0012] The cross-section of the rubber at the first structure, the second structure, and the annular structure is W-shaped.

[0013] Its further features are:

[0014] The inner sleeve is made of metal.

[0015] The ring structure is positioned between the first structure and the second structure.

[0016] The length of the first structure is greater than the length of the ring structure, and the length of the ring structure is greater than the length of the second structure.

[0017] The width of the ring structure is greater than the width of the first structure, and the width of the ring structure is greater than the width of the second structure.

[0018] The first structure is arranged in an arc shape on the side closest to the ring structure, and the second structure is also arranged in an arc shape on the side closest to the ring structure.

[0019] The jacket is made of plastic.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model has a compact and reasonable structure. Both end faces of the rubber are provided with annular structures. A first structure is provided on the side of the rubber near the inner sleeve, and a second structure is provided on the side of the rubber near the outer sleeve. The annular structure is positioned between the first and second structures. The cross-section of the rubber at the first, second, and annular structures is W-shaped. The arrangement of the annular, first, and second structures results in a low dynamic-to-static ratio, enabling better vibration isolation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0023] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0024] Figure 3 for Figure 1 The main view.

[0025] Figure 4 For the present utility model Figure 3 Schematic diagram of the AA section.

[0026] Wherein: 1. Inner sleeve; 2. Outer sleeve; 3. Rubber; 301. First structure; 302. Second structure; 303. Ring structure. Detailed Implementation

[0027] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0028] like Figures 1-4 As shown, a solid bushing for an electric motor includes an inner bushing 1, an outer bushing 2, and a rubber bushing 3.

[0029] Rubber 3 is disposed between inner sleeve 1 and outer sleeve 2, and rubber 3, inner sleeve 1, and outer sleeve 2 are formed by vulcanization. Both end faces of rubber 3 are provided with annular structures 303. A first structure 301 is provided on the side of rubber 3 near inner sleeve 1, and a second structure 302 is provided on the side of rubber 3 near outer sleeve 2. The annular structure 303 is disposed between the first structure 301 and the second structure 302. The cross-section of rubber 3 at the first structure 301, the second structure 302, and the annular structure 303 is W-shaped.

[0030] In one embodiment, the annular structure 303 is disposed between the first structure 301 and the second structure 302.

[0031] In one embodiment, the length of the first structure 301 is greater than the length of the ring structure 303, and the length of the ring structure 303 is greater than the length of the second structure 302.

[0032] In one embodiment, the width of the annular structure 303 is greater than the width of the first structure 301, and the width of the annular structure 303 is greater than the width of the second structure 302.

[0033] In one embodiment, the overall width of the annular structure 303 is relatively uniform.

[0034] In one embodiment, the first structure 301 is arranged in an arc shape near the side of the annular structure 303, and the second structure 302 is arranged in an arc shape near the side of the annular structure 303.

[0035] In one embodiment, the inner sleeve 1 is made of metal.

[0036] In one embodiment, the outer jacket 2 is made of plastic.

[0037] By setting up an annular structure 303, a first structure 301, and a second structure 302, it has a low dynamic-to-static ratio characteristic, which can better isolate vibration.

[0038] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A solid bushing for a motor, characterized in that, include: Inner sleeve (1); Coat (2); Rubber (3) is placed between the inner sleeve (1) and the outer sleeve (2) and is connected to the inner sleeve (1) and the outer sleeve (2) by vulcanization; Among them, the rubber (3) is provided with a first structure (301) on the side near the inner sleeve (1), the rubber (3) is provided with a second structure (302) on the side near the outer sleeve (2), and the rubber (3) is provided with an annular structure (303) between the first structure (301) and the second structure (302); The cross-section of the rubber (3) at the first structure (301), the second structure (302) and the annular structure (303) is W-shaped.

2. The solid bushing for a motor as described in claim 1, characterized in that: The inner sleeve (1) is made of metal.

3. A solid bushing for a motor as described in claim 1, characterized in that: The annular structure (303) is located between the first structure (301) and the second structure (302).

4. A solid bushing for a motor as described in claim 2, characterized in that: The length of the first structure (301) is greater than the length of the ring structure (303), and the length of the ring structure (303) is greater than the length of the second structure (302).

5. A solid motor bushing as described in claim 3, characterized in that: The width of the annular structure (303) is greater than the width of the first structure (301), and the width of the annular structure (303) is greater than the width of the second structure (302).

6. A solid bushing for a motor as described in claim 1, characterized in that: The first structure (301) is arranged in an arc shape on the side near the annular structure (303), and the second structure (302) is arranged in an arc shape on the side near the annular structure (303).

7. A solid bushing for a motor as described in claim 2, characterized in that: The outer cover (2) is made of plastic.