Automobile motor end cover

By designing the limit plate, return spring and rotor ring structure, the problems of complex replacement of existing automobile motor end cover bearings and loud rotor shaking and noise are solved, which simplifies the operation and improves the motor stability and heat dissipation efficiency.

CN223378983UActive Publication Date: 2025-09-23WUXI XINRUIDE MASCH TECH CO LTD
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Patent Information

Application Number
CN202422586242.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-09-23
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

The existing automobile motor end cover has a simple structure, the bearing replacement operation is complicated, the rotor is prone to shaking and noisy, and cannot effectively support the rotor.

Method used

A movable limit plate and return spring structure is designed, combined with a rotor ring and a positioning support plate. The bearing is fixed by a limit rod and a reinforcement bracket. The connecting plate is connected to the motor housing for easy heat dissipation, and the cooling holes improve the heat dissipation efficiency.

Benefits of technology

The bearing replacement process is simplified, rotor shaking and noise are reduced, and the stability and heat dissipation efficiency of the motor are improved.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223378983U_ABST
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Abstract

The utility model provides an automobile motor end cover, which relates to the technical field of automobile accessories and comprises a cover body, a communication plate is arranged at the front end of the cover body, a rotor lantern ring is arranged at the central position of the rear end of the communication plate and extends into the cover body, two sliding grooves are formed in the surface of the rear end of the cover body, and the two sliding grooves are communicated with the communication plate. The front ends of the two sliding grooves are jointly connected with two limiting plates, limiting insertion holes are formed in the opposite side faces of the two limiting plates and the center of the rear end of the cover body, bearings are detachably installed at the limiting insertion holes, limiting vertical rods matched with the limiting insertion holes are arranged on the outer edges of the bearings, and the limiting vertical rods are connected with the limiting insertion holes. Reinforcing supports are arranged on the edges of the opposite sides of the two limiting plates. According to the utility model, the bearing can be prevented from falling off, the end shell does not need to be disassembled when the bearing is replaced or maintained, the operation is simple, the shaking amplitude during rotation of the rotor is reduced, the stability of the motor is improved, and the noise is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an automobile motor end cover. Background Art

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the laws of electromagnetic induction and is widely used in the automotive industry. The motor end cap serves as a protective connection component for the motor, used to mount and protect the rotor assembly, which is typically mounted inside it.

[0003] Most existing automobile motor end covers are one-piece structures. When replacing or maintaining the bearings of the end covers, the end covers need to be removed and the bearings replaced. The operation steps are complicated. In addition, the overall structure of most automobile motor end covers is relatively simple and cannot effectively support the rotor. The rotor is prone to shaking when rotating, which affects the power output and produces relatively loud actual noise. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides an automobile motor end cover to solve the above technical problems existing in the existing technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A car motor end cover, comprising a cover body, a connecting plate provided at the front end of the cover body, a rotor collar provided at the rear end center position of the connecting plate, and the rotor collar extending into the interior of the cover body, two slide grooves provided on the rear end surface of the cover body, the front ends of the two slide grooves being commonly connected to two limit plates, limit holes provided on the opposite sides of the two limit plates and at the rear end center position of the cover body, a bearing being detachably mounted at the position of the limit hole, a limit vertical rod matching the limit hole provided on the outer edge of the bearing, and reinforcement brackets that can be fixed by screws provided at the opposite side edges of the two limit plates.

[0007] Furthermore, a plurality of connecting frames are evenly spaced on the outer edge of the connecting plate, and the connecting plate is mounted on the front end of the motor housing through the connecting frames, which facilitates installation and disassembly for inspection and maintenance.

[0008] Furthermore, a plurality of through holes are provided through the front end of the connecting plate. When the automobile motor end cover is connected to the motor housing, the through holes connect the interior of the housing with the end cover, so that the interior of the housing and the end cover are in a through state, which facilitates the dissipation of heat inside the motor housing.

[0009] Furthermore, the outer surface of the cover is provided with a plurality of cooling holes, which allow the motor housing and the inside of the cover to circulate with the outside air, thereby facilitating cooling of the motor and preventing damage to the motor due to failure to discharge heat in time during operation.

[0010] Furthermore, the outer surface of the rotor collar and the inner wall of the cover are commonly connected with a positioning support plate, which fixes the rotor collar and makes the rotor collar more stable so that the rotor will not tilt when supporting the rotor.

[0011] Furthermore, four return springs are provided inside the rear end slide grooves of the two limit plates. When the two limit plates are pushed toward the edge of the cover body, the return springs will be squeezed. After the bearings are installed at the position of the limit sockets, loosening the two limit plate return springs will push the two limit plates to move linearly toward the center of the cover body, clamping the limit rods.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The automobile motor end cover of the present application is provided with two movable limit plates. When the bearing is installed, the two limit plates are pushed to the edge of the cover body to move, and the reset spring will be squeezed. After the bearing is installed in the limit socket position, the two limit plate reset springs are released, which will push the two limit plates to the center position of the cover body for linear movement. The limit vertical rod is clamped, and then the screws are installed on the two reinforcement brackets on the same side to reinforce the two limit plates so that the bearing will not fall off. There is no need to disassemble the end shell when replacing or maintaining the bearing, and the operation is simple.

[0014] 2. The present application is provided with a rotor support frame. During installation, the connecting plate is installed at the front end of the motor housing through the connecting frame. The through hole connects the interior of the housing with the end cover, so that the interior of the housing and the end cover are in a through state. The front section of the motor rotor is inserted into the rotor ring and extends out of the front end of the cover body. The rotor ring reinforces and supports the rotor, reduces the shaking amplitude of the rotor during rotation, improves the stability of the motor, and reduces noise at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the cover body of the present invention;

[0017] Figure 3 This is a schematic diagram of the overall structure of the utility model in a disassembled state;

[0018] Figure 4 For the utility model Figure 3 A schematic diagram of the structure at center A;

[0019] Figure 5 For the utility model Figure 3 A magnified schematic diagram of the structure B in the middle.

[0020] In the figure: 1. Cover; 2. Connecting plate; 3. Through hole; 4. Connecting frame; 5. Support plate; 6. Rotor collar; 7. Cooling hole; 8. Limit plate; 9. Limit rod; 10. Bearing; 11. Return spring; 12. Reinforcement bracket; 13. Limit jack; 14. Screw; 15. Slide groove. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described clearly and completely below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-5 As shown, the automobile motor end cover of this embodiment includes a cover body 1, a connecting plate 2 is provided at the front end of the cover body 1, a rotor collar 6 is provided at the rear end center position of the connecting plate 2, and the rotor collar 6 extends to the inside of the cover body 1. When the end cover is installed, the front section of the motor rotor is inserted into the rotor collar 6 and extends out of the front end of the cover body 1. The rotor collar 6 reinforces and supports the rotor to reduce the shaking amplitude of the rotor during rotation; two chutes 15 are provided on the rear end surface of the cover body 1, and the front ends of the two chutes 15 are commonly connected to two limit plates 8. The two limit plates 8 are limited by the chutes 15 so that the two limit plates 8 can perform linear motion on the rear end surface of the cover body 1; the opposite sides of the two limit plates 8 and the cover body 1 A limiting hole 13 is arranged at the center position of the rear end, and a bearing 10 is detachably installed at the position of the limiting hole 13. The outer surface of the bearing 10 is provided with four limiting rods 9 matching the limiting holes 13; the bearing 10 is installed at the center position of the cover body 1 and is fixed by the limiting rods 9 so that the outer ring of the bearing 10 does not rotate; two reinforcing brackets 12 are provided at the opposite side edges of the two limiting plates 8, and the two reinforcing brackets 12 on the same side are connected with a screw 14. When the two reinforcing brackets 12 clamp the limiting rods 9, the screws 14 are installed on the two reinforcing brackets 12 on the same side to reinforce the two limiting plates 8 so that the bearing 10 will not fall off.

[0023] Specifically, a plurality of connecting frames 4 are evenly spaced on the outer edge of the connecting plate 2 , and the connecting plate 2 is installed at the front end of the motor housing through the connecting frames 4 , which is convenient for installation and disassembly for inspection and maintenance.

[0024] Furthermore, a plurality of through holes 3 are provided through the front end of the connecting plate 2. When the automobile motor end cover is connected to the motor housing, the through holes 3 connect the interior of the housing with the end cover, so that the interior of the housing and the end cover are in a through state, which facilitates the dissipation of heat inside the motor housing.

[0025] Furthermore, the outer surface of the cover body 1 is provided with a plurality of cooling holes 7, which allow the motor housing and the inside of the cover body 1 to circulate with the outside air, thereby facilitating cooling of the motor and preventing damage to the motor due to failure to discharge heat in time during operation.

[0026] Furthermore, the outer surface of the rotor collar 6 and the inner wall of the cover 1 are connected to a positioning support plate 5 to fix the rotor collar 6, making the rotor collar 6 more stable and preventing it from tilting when supporting the rotor.

[0027] Furthermore, four return springs 11 are provided inside the rear end slide grooves 15 of the two limit plates 8. When the two limit plates 8 are pushed to move toward the edge of the cover body 1, the return springs 11 will be squeezed. After the bearing 10 is installed at the position of the limit socket 13, the two limit plates 8 are released. The return springs 11 will push the two limit plates 8 to move linearly toward the center position of the cover body 1, clamping the limit rod 9.

[0028] The method of using this embodiment is as follows: when installing the bearing 10, the two limit plates 8 are pushed to move toward the edge of the cover body 1, and the return spring 11 will be squeezed. After the bearing 10 is installed in the position of the limit plug hole 13, the two limit plates 8 are loosened and the return spring 11 will push the two limit plates 8 to the center position of the cover body 1 for linear movement, clamping the limit vertical rod 9; then the screws 14 are installed on the two reinforcing brackets 12 on the same side to reinforce the two limit plates 8 so that the bearing 10 will not fall off, making it easy to replace the bearing 10; when installing the end cover, the connecting plate 2 is installed at the front end of the motor housing through the connecting frame 4, and the through hole 3 connects the interior of the housing with the end cover, so that the interior of the housing and the end cover are in a through state, and the front section of the motor rotor is inserted into the rotor ring 6 and extends out of the front end of the cover body 1. The rotor ring 6 reinforces and supports the rotor, reducing the shaking amplitude of the rotor when it rotates.

[0029] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art may modify or substitute equivalents for the technical solutions described in the aforementioned embodiments. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automobile motor end cover, comprising a cover body (1), characterized in that: The front end of the cover body (1) is provided with a connecting plate (2), and a rotor ring (6) extending into the interior of the cover body (1) is provided at the rear center position of the connecting plate (2). The rear end surface of the cover body (1) is provided with two slide grooves (15), and the front ends of the two slide grooves (15) are commonly connected to two limit plates (8). Limiting holes (13) are arranged on the opposite sides of the two limit plates (8) and at the rear center position of the cover body (1). A bearing (10) is detachably installed at the position of the limiting hole (13), and a limiting vertical rod (9) matching the limiting hole (13) is provided on the outer edge of the bearing (10). Reinforcement brackets (12) that can be fixed by screws (14) are provided at the opposite side edges of the two limit plates (8).

2. The automobile motor end cover according to claim 1, characterized in that: A plurality of connecting frames (4) are arranged at equal intervals on the outer edge of the connecting plate (2).

3. The automobile motor end cover according to claim 1, characterized in that: A plurality of through holes (3) are provided through the front end of the connecting plate (2).

4. The automobile motor end cover according to claim 1, characterized in that: The outer surface of the cover body (1) is provided with a plurality of cooling holes (7).

5. The automobile motor end cover according to claim 1, characterized in that: The outer surface of the rotor collar (6) and the inner wall of the cover body (1) are jointly connected with a positioning support plate (5).

6. The automobile motor end cover according to claim 1, characterized in that: Four return springs (11) are provided inside the rear end sliding grooves (15) of the two limit plates (8).