Electric vehicle end cap structure

By designing a multi-layered buffer structure on the end cover of the electric vehicle, and using honeycomb silicone pads and telescopic rods in conjunction with springs for multi-level buffering, the problem of easy damage to the end cover in the existing technology is solved, and better protection against vibration and impact is achieved.

CN224684013UActive Publication Date: 2026-08-25GUANGDONG SHUNDI PRECISION MANUFACTURING CO LTD
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Patent Information

Application Number
CN202520827983.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-08-25
Estimated Expiration
2035-04-28

AI Technical Summary

Technical Problem

The existing electric vehicle end cap structure lacks multi-layered buffer components, which cannot effectively cope with high-intensity or continuous vibration and impact, making the end cap structure susceptible to damage.

Method used

A multi-layered buffer structure is designed, including a snap-fit ​​component, a buffer component, and a telescopic component. It utilizes a honeycomb silicone pad and a telescopic rod in conjunction with a spring to provide multi-level buffering, disperse and absorb vibration energy.

Benefits of technology

Through multi-layer buffer design, the end cap and internal motor are effectively protected, extending their service life and improving their resistance to vibration and impact.

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Abstract

This utility model relates to the field of end cap structure technology and discloses an electric vehicle end cap structure, including an end cap, a mounting protrusion, and mounting holes. The mounting protrusion is fixedly provided at the end of the end cap, and the mounting holes are evenly distributed on the mounting protrusion. The end cap is provided with a snap-fit ​​component, a buffer component, and a telescopic component. The snap-fit ​​component is located at the bottom end of the end cap, the buffer component is located inside the snap-fit ​​component, and the telescopic component is located inside the buffer component. The present utility model proposes to facilitate the installation of the buffer component by setting the snap-fit ​​component at the bottom end of the end cap. The buffer component adopts a multi-layer design. The first buffer layer inside the buffer pad is equipped with a honeycomb silicone pad, which can initially and effectively absorb vibration energy. The second buffer layer at the bottom end of the first buffer layer further enhances the buffering effect. The telescopic component is located inside the buffer component. The telescopic component, together with the fixed sleeve, telescopic rod, and spring, can flexibly extend and retract when subjected to external impact. Through multi-level buffering and force dispersion, the end cap's ability to cope with vibration and impact is improved.
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Description

Technical Field

[0001] This utility model relates to the field of end cap structure technology, specifically an electric vehicle end cap structure. Background Technology

[0002] The existing Chinese patent document CN216904509U discloses a sealing structure for an electric vehicle motor end cover and housing, specifically relating to the field of electric vehicle technology. It includes a cover and a sealing shell. A first fixing ring is fixed to the front of the outer surface of the cover, a second fixing ring is fixed to the rear of the outer surface of the sealing shell, a concave fastening ring is slidably installed on the front of the outer surface of the cover, a top ring is slidably installed on the rear of the outer surface of the sealing shell, an installation ring is fixed to the middle of the inner surface of the sealing shell, and a storage ring is slidably installed on the rear of the inner surface of the sealing shell. This invention provides a sealing structure for an electric vehicle motor end cover and housing. Bolts are used to fix the concave fastening ring, top ring, first fixing ring, and second fixing ring. The sealing ring and tar paper fill and seal the gap between the opposing surfaces of the first and second fixing rings, increasing the sealing performance between the cover and the sealing shell and protecting the motor from damage during use.

[0003] In actual electric vehicle driving scenarios, the vibrations during driving and the impact force generated by road bumps may damage the end cover and the internal motor. However, in the existing technology, the end cover structure lacks multi-layer buffer components, which makes it impossible for the end cover to effectively buffer and disperse the force step by step when facing these external impacts. The single-layer buffer design is often unable to cope with high-intensity or continuous vibration impacts, which can easily lead to damage to the end cover itself.

[0004] Therefore, this utility model proposes an electric vehicle end cap structure to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an electric vehicle end cap structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric vehicle end cover structure, including an end cover, a mounting protrusion, and mounting holes, wherein the end cover is fixedly provided with a mounting protrusion, and the mounting holes are evenly distributed on the mounting protrusion;

[0007] The end cap is provided with a snap-fit ​​component, a buffer component, and a telescopic component. The snap-fit ​​component is located at the bottom end of the end cap, the buffer component is located inside the snap-fit ​​component, and the telescopic component is located inside the buffer component.

[0008] Preferably, the snap-fit ​​groove in the snap-fit ​​assembly is located at the bottom end of the end cap, and a buffer pad is fitted into the snap-fit ​​groove.

[0009] Preferably, the buffer pad in the buffer assembly is provided with a second mounting hole evenly distributed, the buffer pad is provided with a first buffer layer, and the first buffer layer is provided with a honeycomb silicone pad evenly distributed.

[0010] Preferably, a second buffer layer is provided at the bottom of the first buffer layer in the buffer assembly, and telescopic members are uniformly arranged in the second buffer layer.

[0011] Preferably, the bottom end of the telescopic component in the telescopic assembly is provided with a fixed sleeve, the fixed sleeve is fixedly disposed on the second buffer layer, and a telescopic rod is embedded in the fixed sleeve.

[0012] Preferably, a spring is sleeved on the outer side of the telescopic rod in the telescopic assembly. One end of the spring is fixedly mounted on the top of the fixed sleeve, and the other end of the spring is fixedly mounted on the protrusion. The protrusion is fixedly mounted on the telescopic rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a snap-fit ​​component at the bottom end of the end cap, it is convenient to install the buffer component and ensure that the buffer pad is installed firmly. The buffer component adopts a multi-layer design. The first buffer layer inside the buffer pad is equipped with a honeycomb silicone pad, which can initially and effectively absorb vibration energy. The second buffer layer at the bottom of the first buffer layer further enhances the buffering effect. The telescopic component is located inside the buffer component. The telescopic component, together with the fixed sleeve, telescopic rod and spring, can flexibly extend and retract when subjected to external impact. Through multi-level buffering and force dispersion, the end cap's ability to cope with vibration and impact is greatly improved, effectively protecting the end cap's own structure and internal motor, and extending the service life of the end cap and motor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the buffer component of this utility model;

[0017] Figure 4 This is a schematic diagram showing the detailed structure of the telescopic component of this utility model.

[0018] In the diagram: End cap 1, mounting protrusion 2, mounting hole 3, snap-fit ​​assembly 4, buffer assembly 5, telescopic assembly 6, snap-fit ​​groove 401, buffer pad 501, second mounting hole 502, first buffer layer 503, honeycomb silicone pad 504, second buffer layer 505, telescopic component 601, fixing sleeve 602, telescopic rod 603, spring 604, protrusion 605. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1: Please refer to Figures 1-2 An electric vehicle end cover structure includes an end cover 1, a mounting protrusion 2, and mounting holes 3. The end cover 1 is fixedly provided with the mounting protrusion 2, and the mounting holes 3 are evenly distributed on the mounting protrusion 2. The end cover 1 is provided with a snap-fit ​​component 4, a buffer component 5, and a telescopic component 6. The snap-fit ​​component 4 is provided at the bottom end of the end cover 1, the buffer component 5 is provided inside the snap-fit ​​component 4, and the telescopic component 6 is provided inside the buffer component 5.

[0021] The snap-fit ​​groove 401 in the snap-fit ​​assembly 4 is located at the bottom end of the end cap 1, and a buffer pad 501 is fitted into the snap-fit ​​groove 401.

[0022] When in use, vibration and impact are transmitted when the electric vehicle is in motion. After the end cover 1 is installed through the mounting hole 3 on the mounting protrusion 2, the snap-fit ​​component 4 at the bottom end of the end cover 1 comes into play. The snap-fit ​​groove 401 is located at the bottom end of the end cover 1. The buffer pad 501 that is adapted to snap-fit ​​can initially buffer the external force. The impact force generated by the vehicle vibration first acts on the buffer pad 501, which can effectively alleviate the impact force and prevent the end cover 1 from being directly damaged by force. Moreover, the snap-fit ​​design ensures that the buffer pad 501 is stable and continuously provides basic buffer for the end cover 1, ensuring the structural stability of the end cover 1 under complex road conditions.

[0023] Example 2: Based on Example 1, please refer to... Figures 2-3 The buffer pad 501 in the buffer assembly 5 is provided with a second mounting hole 502 evenly, the buffer pad 501 is provided with a first buffer layer 503, and the first buffer layer 503 is provided with a honeycomb silicone pad 504 evenly.

[0024] The bottom end of the first buffer layer 503 in the buffer assembly 5 is provided with a second buffer layer 505, and the second buffer layer 505 is uniformly provided with telescopic members 601.

[0025] In use, when the impact force is transmitted to the buffer assembly 5 through the buffer pad 501, the second mounting hole 502 on the buffer pad 501 enhances the connection stability of the component. The honeycomb silicone pad 504 in the first buffer layer 503 effectively disperses and absorbs the impact force using its special honeycomb structure. Then, the second buffer layer 505 at the bottom of the first buffer layer 503 continues to work. The evenly distributed telescopic members 601 inside it expand and contract under the action of the impact force, converting the impact force into elastic potential energy, further weakening the vibration, and providing more comprehensive buffer protection for the end cover 1 and the internal motor.

[0026] Example 3: Based on Example 2, please refer to... Figures 3-4 The bottom end of the telescopic component 601 in the telescopic assembly 6 is provided with a fixed sleeve 602, which is fixedly installed on the second buffer layer 505. The telescopic rod 603 is embedded in the fixed sleeve 602.

[0027] A spring 604 is sleeved on the outside of the telescopic rod 603 in the telescopic assembly 6. One end of the spring 604 is fixedly mounted on the top of the fixed sleeve 602, and the other end of the spring 604 is fixedly mounted on the protrusion 605. The protrusion 605 is fixedly mounted on the telescopic rod 603.

[0028] In use, the remaining impact force after being buffered by the buffer component 5 is transmitted to the telescopic component 6. The bottom end of the telescopic component 601 is fixed inside the fixed sleeve 602 of the second buffer layer 505. The outer side of the embedded telescopic rod 603 is fitted with a spring 604. The impact force causes the telescopic rod 603 to slide inside the fixed sleeve 602, compressing the spring 604. The spring 604 stores elastic potential energy. After the impact force weakens, the spring 604 releases energy to push the telescopic rod 603 to reset, effectively consuming the remaining vibration energy, thereby effectively buffering the end cover 1, protecting the structure of the end cover 1, and reducing damage to the internal motor.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle end cap structure, comprising an end cap (1), a mounting protrusion (2), and mounting holes (3), wherein the end cap (1) is fixedly provided with a mounting protrusion (2) and the mounting holes (3) are evenly arranged on the mounting protrusion (2); Its features are: It includes a snap-fit ​​assembly (4), a buffer assembly (5), and a telescopic assembly (6). The snap-fit ​​assembly (4) is disposed at the bottom end of the end cap (1), the buffer assembly (5) is disposed inside the snap-fit ​​assembly (4), and the telescopic assembly (6) is disposed inside the buffer assembly (5). A spring (604) is sleeved on the outside of the telescopic rod (603) in the telescopic assembly (6). One end of the spring (604) is fixedly mounted on the top of the fixed sleeve (602), and the other end of the spring (604) is fixedly mounted on the protrusion (605). The protrusion (605) is fixedly mounted on the telescopic rod (603).

2. The electric vehicle end cap structure according to claim 1, characterized in that: The snap-fit ​​groove (401) in the snap-fit ​​assembly (4) is located at the bottom end of the end cap (1), and a buffer pad (501) is fitted into the snap-fit ​​groove (401).

3. The electric vehicle end cap structure according to claim 1, characterized in that: The buffer assembly (5) has a second mounting hole (502) uniformly arranged on the buffer pad (501), and a first buffer layer (503) is arranged inside the buffer pad (501), and a honeycomb silicone pad (504) is uniformly arranged inside the first buffer layer (503).

4. The electric vehicle end cap structure according to claim 3, characterized in that: The first buffer layer (503) in the buffer assembly (5) is provided with a second buffer layer (505) at the bottom end, and the second buffer layer (505) is provided with telescopic members (601) evenly.

5. The electric vehicle end cap structure according to claim 1, characterized in that: The telescopic component (601) in the telescopic assembly (6) is provided with a fixed sleeve (602) at the bottom end. The fixed sleeve (602) is fixedly installed on the second buffer layer (505). The telescopic rod (603) is embedded in the fixed sleeve (602).

Citation Information

Patent Citations

  • Sealing structure of motor end cover and shell of electric vehicle

    CN216904509U