Reinforced end cover of new energy vehicle motor

By setting radial reinforcing ribs on the inner wall and outer wall of the motor end cover of new energy vehicles, and combining them with heat dissipation holes and sealing structures, the shortcomings of the motor end cover in terms of strength, heat dissipation and installation convenience are solved, and the stable operation and life of the motor are achieved.

CN224319136UActive Publication Date: 2026-06-02ZHENJIANG LONGKE AUTOMOBILE TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENJIANG LONGKE AUTOMOBILE TECHNOLOGY CO LTD
Filing Date
2025-05-09
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing motor end caps for new energy vehicles are inadequate in terms of strength, heat dissipation performance, and ease of installation, leading to problems such as motor deformation, poor heat dissipation, and high maintenance difficulty when the motor is running at high speed.

Method used

Radial reinforcing ribs are provided on the inner wall of the end cap body and multiple sets of reinforcing ribs on the outer wall. Heat dissipation holes are provided on the inner side wall. Combined with the sealing structure and reinforcing plate, the strength and heat dissipation efficiency are improved, ensuring stable operation of the motor.

Benefits of technology

The end caps have been strengthened and made more rigid, improving heat dissipation, reducing the internal temperature of the motor, and enhancing the motor's operational stability and ease of maintenance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224319136U_ABST
    Figure CN224319136U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of reinforced new energy automobile motor end cover, including end cover body, motor shaft hole is set in the center of the end cover body, the outside wall of the end cover body is uniformly connected with multiple groups of outer reinforcing rib, the end surface of the end cover body is engaged and connected with sealing pad B, the inside of the end cover body is integrally provided with bearing mounting portion in motor shaft hole position, the end surface position of the bearing mounting portion is engaged and connected with sealing pad A.The utility model is set by setting reinforcing rib of radial distribution on the inner wall of end cover body and setting multiple groups of reinforcing rib on outer wall, improve the strength and rigidity of end cover, avoid the deformation of end cover when motor high-speed operation, set evenly distributed heat dissipation hole on the inner side wall of end cover body, increase the heat dissipation area, improve the heat dissipation efficiency, reduce the temperature inside motor.
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Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle application technology, and in particular to a reinforced end cover for a new energy vehicle motor. Background Technology

[0002] The motor end cover in new energy vehicles is an important component of the motor, mainly used to support the motor rotor, fix the motor stator, and protect the internal structure of the motor. With the continuous development of new energy vehicle technology, higher requirements are being placed on the strength, heat dissipation performance, and ease of installation of the motor end cover.

[0003] Currently, existing end caps for new energy vehicle motors have some shortcomings in use. For example, the end caps are not strong enough and are prone to deformation when the motor is running at high speed, affecting the normal operation of the motor; their heat dissipation performance is poor, resulting in excessively high internal temperatures of the motor, reducing the motor's efficiency and lifespan; and their installation and disassembly are not convenient, increasing the difficulty of maintenance and repair. Therefore, this utility model proposes a reinforced end cap for new energy vehicle motors. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a reinforced end cover for a new energy vehicle motor. By setting radially distributed reinforcing ribs on the inner wall of the end cover body and setting multiple sets of reinforcing ribs on the outer wall, the strength and rigidity of the end cover are improved, and deformation of the end cover is prevented when the motor is running at high speed. The heat dissipation holes are evenly distributed on the inner side wall of the end cover body, which increases the heat dissipation area, improves the heat dissipation efficiency, and reduces the internal temperature of the motor.

[0005] To solve the above technical problems, the present invention adopts a technical solution as follows: a reinforced end cover for a new energy vehicle motor is provided, including an end cover body, a motor shaft hole is provided at the center of the end cover body, a plurality of external reinforcing ribs are uniformly fixedly connected to the outer side wall of the end cover body, and a sealing gasket B is snapped onto the end face of the end cover body.

[0006] The end cover body has an integrally formed bearing mounting part located at the motor shaft hole, and a sealing gasket A is engaged with the end face of the bearing mounting part.

[0007] The inner wall of the end cap body is uniformly fixed with multiple reinforcing ribs B in the circumferential direction, which are radially distributed, and the multiple reinforcing ribs B extend to the junction of the inner side wall and the inner wall of the end cap body, and a connecting reinforcement part is provided at the junction.

[0008] The present invention is further configured such that: multiple mounting blocks are integrally and uniformly arranged in the circumferential direction at the outer wall edge of the end cap body, and a reinforcing plate is provided at the connection between the multiple mounting blocks and the end cap body.

[0009] The above technical solution facilitates the use of multiple mounting blocks to install and fix the entire end cover body to the motor housing, and uses multiple reinforcing plates to reinforce the connection.

[0010] The present invention is further configured such that the multiple external reinforcing ribs are arranged in four groups, and each group of external reinforcing ribs consists of five ribs, and the four groups of external reinforcing ribs are distributed alternately with the multiple mounting blocks.

[0011] The above technical solution involves grouping multiple external reinforcing ribs to work in conjunction with the internal reinforcing rib B to enhance the overall strength of the end cap body.

[0012] The present invention is further configured such that: the outer wall of the end cap body near the mounting block is provided with secondary heat dissipation holes.

[0013] The above technical solution uses multiple secondary heat dissipation holes in conjunction with multiple primary heat dissipation holes inside to guide and expel the high temperature generated inside, thereby preventing heat from remaining inside the end cover body for a long time and causing damage to the end cover body.

[0014] The present invention is further configured such that: a plurality of reinforcing ribs A are uniformly fixedly connected to the outer wall of the bearing mounting part, and the plurality of reinforcing ribs A and a plurality of reinforcing ribs B extending to the outer wall of the bearing mounting part are distributed alternately.

[0015] The above technical solution utilizes the alternating reinforcing ribs A and B to enhance the strength of the bearing mounting section, thereby ensuring the stability of the motor output shaft during high-speed rotation and preventing damage caused by resonance.

[0016] The present invention is further configured such that: a plurality of primary heat dissipation holes are uniformly provided through the outer wall of the bearing mounting part, and are distributed between the reinforcing ribs A and B.

[0017] The above technical solution facilitates the use of multiple evenly distributed primary heat dissipation holes to guide and expel the high temperature generated by the rotation of the internal motor output shaft, thereby reducing the heat inside the entire end cover body and increasing the service life of the end cover body.

[0018] The present invention is further configured such that the connecting reinforcement is arc-shaped.

[0019] The above technical solution facilitates the improvement of the strength of the internal connection of the end cap body, thereby preventing deformation of the end cap body during long-term use.

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

[0021] 1. The reinforced end cover for a new energy vehicle motor proposed in this utility model improves the strength and rigidity of the end cover by setting radially distributed reinforcing ribs on the inner wall of the end cover body and setting multiple sets of reinforcing ribs on the outer wall, thereby preventing the end cover from deforming when the motor is running at high speed.

[0022] 2. The reinforced end cover for a new energy vehicle motor proposed in this utility model increases the heat dissipation area, improves the heat dissipation efficiency, and reduces the internal temperature of the motor by setting evenly distributed heat dissipation holes on the inner side wall of the end cover body. Attached Figure Description

[0023] Figure 1 This is a first structural diagram of a reinforced end cover for a new energy vehicle motor according to the present invention;

[0024] Figure 2 This is a second structural diagram of a reinforced end cover for a new energy vehicle motor according to the present invention;

[0025] Figure 3 This is a side view of a reinforced end cover for a new energy vehicle motor according to the present invention.

[0026] Figure 4 for Figure 3 Cross-sectional structural diagram of AA;

[0027] Figure 5 This is an exploded view of a reinforced end cover for a new energy vehicle motor according to this utility model.

[0028] In the figure: 1. End cover body; 11. Mounting block; 111. Reinforcing plate; 12. Motor shaft hole; 13. Outer reinforcing rib; 14. Bearing mounting part; 141. Reinforcing rib A; 142. Primary heat dissipation hole; 15. Sealing gasket A; 16. Reinforcing rib B; 17. Connecting reinforcement part; 18. Secondary heat dissipation hole; 19. Sealing gasket B. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0030] like Figures 1-5As shown, a reinforced end cover for a new energy vehicle motor includes an end cover body 1. Multiple mounting blocks 11 are integrally and uniformly arranged circumferentially along the outer edge of the end cover body 1. Reinforcing plates 111 are provided at the connection points between the mounting blocks 11 and the end cover body 1, facilitating the installation and fixation of the entire end cover body 1 to the motor housing using the mounting blocks 11 and reinforcing the connection points using the reinforcing plates 111. A motor shaft hole 12 is provided at the center of the end cover body 1 to facilitate the positioning of the motor output end. Multiple sets of external reinforcing ribs 13 are uniformly and fixedly connected to the outer wall of the end cover body 1. There are four sets of external reinforcing ribs 13, and each set contains five ribs. Four sets of external reinforcing ribs 13 are distributed alternately with multiple mounting blocks 11. The multiple external reinforcing ribs 13 are grouped and set so that they can work with the internal reinforcing ribs B16 to strengthen the strength of the entire end cover body 1. The end face of the end cover body 1 is fitted with a sealing gasket B19. The sealing gasket B19 can seal the connection between the end cover body 1 and the motor housing. The outer wall of the end cover body 1 is provided with secondary heat dissipation holes 18 near the mounting blocks 11. The multiple secondary heat dissipation holes 18, together with the multiple internal primary heat dissipation holes 142, can guide and dissipate the high temperature generated inside, thereby preventing heat from remaining inside the end cover body 1 for a long time and causing damage to the end cover body 1.

[0031] like Figures 2-5 As shown, a bearing mounting portion 14 is integrally formed inside the end cover body 1 at the motor shaft hole 12. Multiple reinforcing ribs A141 are evenly fixedly connected to the outer wall of the bearing mounting portion 14. These reinforcing ribs A141 and B16 extending to the outer wall of the bearing mounting portion 14 are distributed alternately. The alternating distribution of reinforcing ribs A141 and B16 enhances the strength of the bearing mounting portion 14, thereby ensuring the stability of the motor output shaft during high-speed rotation and preventing damage due to resonance. Multiple primary heat dissipation holes 142 are evenly distributed throughout the outer wall of the bearing mounting part 14, and are located between the reinforcing ribs A141 and B16. This facilitates the dissipation of the high temperature generated by the rotation of the internal motor output shaft using the multiple evenly distributed primary heat dissipation holes 142, thereby reducing the heat inside the entire end cover body 1 and increasing the service life of the end cover body 1. A sealing gasket A15 is engaged and connected to the end face of the bearing mounting part 14. By using the sealing gasket A15, the internal bearing can be sealed during installation, reducing the entry of external air.

[0032] like Figure 2As shown, multiple reinforcing ribs B16 are uniformly fixedly connected to the inner wall of the end cap body 1 in the circumferential direction. They are radially distributed and extend to the junction of the inner side wall and the inner wall of the end cap body 1. At the same time, a connecting reinforcement part 17 is provided at the junction. The connecting reinforcement part 17 is arc-shaped, which helps to improve the strength of the internal connection of the end cap body 1, thereby preventing the end cap body 1 from deforming during long-term use.

[0033] Working principle: In use, the end cover body 1 is installed on the motor housing via the mounting block 11. The motor shaft passes through the motor shaft hole 12, and the sealing gasket B19 fits tightly against the motor housing, providing a sealing effect. When the motor is running, the heat generated is dissipated to the outside through the primary heat dissipation hole 142 and the secondary heat dissipation hole 18 provided inside the end cover body 1. The external reinforcing rib 13, together with the internal reinforcing rib B16, can improve the strength and rigidity of the end cover body 1, preventing the end cover body 1 from deforming when the motor is running at high speed.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A reinforced end cap for a new energy vehicle motor, comprising an end cap body (1), characterized in that: The end cap body (1) has a motor shaft hole (12) at its center. Multiple sets of external reinforcing ribs (13) are evenly fixedly connected to the outer side wall of the end cap body (1). A sealing gasket B (19) is snapped onto the end face of the end cap body (1). The end cover body (1) has a bearing mounting part (14) integrally provided inside the motor shaft hole (12), and a sealing gasket A (15) is engaged and connected to the end face of the bearing mounting part (14). The inner wall of the end cap body (1) is uniformly fixed with multiple reinforcing ribs B (16) in the circumferential direction. These ribs are radially distributed and extend to the junction of the inner side wall and the inner wall of the end cap body (1). At the same time, a connecting reinforcement part (17) is provided at the junction.

2. The reinforced end cover for a new energy vehicle motor according to claim 1, characterized in that: Multiple mounting blocks (11) are uniformly and integrally arranged in the circumferential direction at the outer wall edge of the end cap body (1), and a reinforcing plate (111) is provided at the connection between the multiple mounting blocks (11) and the end cap body (1).

3. The reinforced end cover for a new energy vehicle motor according to claim 2, characterized in that: The multiple external reinforcing ribs (13) are arranged in four groups, and each group of external reinforcing ribs (13) consists of five ribs. The four groups of external reinforcing ribs (13) are distributed alternately with the multiple mounting blocks (11).

4. The reinforced end cover for a new energy vehicle motor according to claim 3, characterized in that: The outer wall of the end cap body (1) near the mounting block (11) is provided with secondary heat dissipation holes (18).

5. The reinforced end cover for a new energy vehicle motor according to claim 1, characterized in that: The outer wall of the bearing mounting part (14) is uniformly fixedly connected with a plurality of reinforcing ribs A (141), and the plurality of reinforcing ribs A (141) and the plurality of reinforcing ribs B (16) extending to the outer wall of the bearing mounting part (14) are distributed alternately.

6. The reinforced end cover for a new energy vehicle motor according to claim 5, characterized in that: The outer wall of the bearing mounting part (14) is uniformly provided with a plurality of primary heat dissipation holes (142), which are distributed between the reinforcing ribs A (141) and B (16).

7. The reinforced end cover for a new energy vehicle motor according to claim 1, characterized in that: The connecting reinforcement (17) is arranged in an arc shape.