A new energy vehicle door hinge

By designing detachable door hinges for new energy vehicles, the problem of overall replacement has been solved, enabling individual hinge replacement, reducing wear, and extending service life.

CN224300633UActive Publication Date: 2026-05-29ZHEJIANG LONGJI AUTO PARTS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG LONGJI AUTO PARTS
Filing Date
2025-06-05
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing door hinges of new energy vehicles require complete replacement when some are damaged, and they are subject to severe wear, resulting in a shortened service life.

Method used

Design a door hinge for new energy vehicles. Through the combination of a static plate, a moving plate, a round block, a round rod, a rotating rod, and a connecting structure, the hinge allows for the individual replacement of damaged parts. It also incorporates ball bearings to reduce friction and extend service life.

Benefits of technology

This design achieves hinge detachability and reduced wear, extending the hinge's lifespan.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224300633U_ABST
    Figure CN224300633U_ABST
Patent Text Reader

Abstract

The utility model relates to new energy automobile door hinge technical field especially a new energy automobile door hinge, including door hinge static piece, one side inner wall gap cooperation of door hinge static piece has round bar, both ends of round bar all are fixedly connected with round block, one end of round block in the inside is pasted with the rotation lever, the outer wall fixed connection of rotation lever has door hinge dynamic piece, one side of round bar is equipped with the connecting structure. Through the cooperation of door hinge dynamic piece, door hinge static piece, round block, round bar, vertical rod, rotation lever and connecting structure, rotating bolt, moving out bolt from the inner wall of square bar and rotation lever, pulling out the vertical rod, the vertical rod drives the square bar to move outward, moving out the square bar from the inner wall of rotation lever, further realize the disassembly to door hinge static piece and door hinge dynamic piece, facilitate the staff to use the combination to the hinge, can carry out the separate replacement when the hinge dynamic piece or hinge static piece breaks down, need not to change the whole.
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Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle door hinge technology, specifically a new energy vehicle door hinge. Background Technology

[0002] A hinge, also known as a hinge, is a mechanical device used to connect two solids and allow relative rotation between them. Hinges can be made of movable components or foldable materials. Car door hinges are important parts of car doors, enabling the doors to open and close.

[0003] There is a simple automotive door hinge (application number: 202420168968.4) that can be adapted to different sizes of body hinge stationary plates and door hinge moving plates. By setting sliding blocks and elastic ropes, it can provide more stable support for the hinge between the door and the body. However, the above still has its problems. In new energy vehicles, hinges are often used when installing car doors. However, when using hinges, it is not convenient for workers to combine and use them. When a part of the hinge is damaged, the whole hinge needs to be replaced. Moreover, it is not easy to reduce the wear of the hinge when using it, thus it is not easy to extend the service life of the hinge. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing technologies, such as the inconvenience for workers to assemble and use hinges, the need to replace the entire hinge when a part of the hinge is damaged, the difficulty in reducing hinge wear, and the difficulty in extending the service life of the hinge. Therefore, a new energy vehicle door hinge is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A door hinge for a new energy vehicle is designed, including a door hinge stationary piece. A round rod is fitted with a clearance fit on one inner wall of the door hinge stationary piece. Round blocks are fixedly connected to both the upper and lower ends of the round rod. A rotating rod is attached to one end of the inner round block. A door hinge moving piece is fixedly connected to the outer wall of the rotating rod. A connecting structure is provided on one side of the round rod.

[0007] Preferably, the connecting structure includes a spring, one end of which is fixedly connected to one end of the inner wall of the round rod, and the other end of which is fixedly connected to a square rod. One side of the outer wall of the square rod is in clearance fit with the inner wall of the inner round block, and one side of the outer wall of the square rod is in clearance fit with the inner wall of one end of the rotating rod. One side of the inner wall of the square rod is threadedly connected to the outer inner wall of one end of the rotating rod by a bolt.

[0008] Preferably, one end of the square rod is fixedly connected to a vertical rod.

[0009] Preferably, one side of the outer wall of the vertical rod is fitted with the inner wall of the outer circular block with a clearance.

[0010] Preferably, a ball bearing is fitted into the groove on one side of the inner wall of the door hinge stationary plate.

[0011] Preferably, one end of the ball is in contact with one side of the outer wall of the round rod.

[0012] The new energy vehicle door hinge proposed in this utility model has the following advantages: through the cooperation of the door hinge moving piece, door hinge stationary piece, round block, round rod, vertical rod, rotating rod and connecting structure, the device can be used by rotating the bolt to move the bolt out of the inner wall of the square rod and rotating rod, pulling the vertical rod outward, and the vertical rod drives the square rod to move outward, moving the square rod out of the inner wall of the rotating rod, thereby realizing the disassembly of the door hinge stationary piece and the door hinge moving piece. This makes it convenient for workers to combine and use the hinge. When the hinge moving piece or the hinge stationary piece is damaged, it can be replaced individually without replacing the whole thing.

[0013] By cooperating with the door hinge stationary plate, door hinge moving plate, round block, round rod, and ball bearings, this device allows the round rod to rotate on one side of the inner wall of the door hinge stationary plate when the door hinge moving plate rotates under force. At this time, the ball bearings can reduce friction, reduce hinge wear, and thus extend the hinge's service life. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the moving piece, stationary piece, and rotating rod of the door hinge of this utility model.

[0016] Figure 3 This is a schematic diagram of the vertical rod, spring, and square rod structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the door hinge stationary plate, ball bearings, and channel structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the rotating rod, bolt, and square rod structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the circular block, circular rod, and vertical rod structure of this utility model.

[0020] In the diagram: 1. Door hinge stationary piece; 2. Connecting structure; 2a1. Spring; 2a2. Bolt; 2a3. Square rod; 2b1. Channel; 3. Door hinge moving piece; 4. Rotating rod; 5. Round block; 6. Round rod; 7. Ball bearing; 8. Vertical rod. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Example 1: Refer to Appendix Figure 1-6 In this embodiment, a new energy vehicle door hinge includes a door hinge stationary piece 1. A round rod 6 is fitted with a gap on one side of the inner wall of the door hinge stationary piece 1. When the round rod 6 is subjected to force, it can rotate on one side of the inner wall of the door hinge stationary piece 1. Round blocks 5 are fixedly connected to both the upper and lower ends of the round rod 6. A rotating rod 4 is attached to one end of the inner round block 5. A door hinge moving piece 3 is fixedly connected to the outer wall of the rotating rod 4.

[0023] A ball bearing 7 is fitted into the groove on one side of the inner wall of the door hinge stationary piece 1. When the ball bearing 7 is under force, it can roll in the groove on one side of the inner wall of the door hinge stationary piece 1. One end of the ball bearing 7 is in contact with one side of the outer wall of the round rod 6. A connecting structure 2 is provided on one side of the round rod 6. The connecting structure 2 makes it easy for the staff to combine and use the hinge. When the hinge moving piece or the hinge stationary piece is damaged, it can be replaced separately without replacing the whole piece.

[0024] The connecting structure 2 includes a spring 2a1. One end of the spring 2a1 is fixedly connected to one end of the inner wall of the round rod 6. The spring 2a1 applies an inward force to the square rod 2a3. The other end of the spring 2a1 is fixedly connected to the square rod 2a3. One side of the outer wall of the square rod 2a3 is in clearance fit with the inner wall of the inner round block 5. One side of the outer wall of the square rod 2a3 is in clearance fit with one end of the inner wall of the rotating rod 4. One end of the square rod 2a3 is fixedly connected to a vertical rod 8.

[0025] One side of the outer wall of the vertical rod 8 is fitted with the inner wall of the outer circular block 5 with a clearance. When the vertical rod 8 is under force, it can move up and down on the inner wall of the outer circular block 5. One side of the inner wall of the square rod 2a3 is threadedly connected to the outer inner wall of one end of the rotating rod 4 by bolt 2a2, which makes it convenient for workers to combine and use the hinge. When the hinge moving piece or hinge stationary piece is damaged, it can be replaced separately without replacing the whole thing.

[0026] Working principle:

[0027] When using door hinges for new energy vehicles:

[0028] The moving part 3 of the door hinge is connected to the door of the new energy vehicle, and the stationary part 1 of the door hinge is connected to the door frame of the new energy vehicle. When the moving part 3 of the door hinge is rotated under force, the round rod 6 rotates on the inner wall of one side of the stationary part 1 of the door hinge, thereby realizing the opening or closing of the door of the new energy vehicle. At this time, the ball bearing 7 can reduce the friction. In case of damage, the bolt 2a2 is rotated to move the bolt 2a2 out of the inner wall of the square rod 2a3 and the rotating rod 4, and the vertical rod 8 is pulled outward. The vertical rod 8 drives the square rod 2a3 to move outward, and moves the square rod 2a3 out of the inner wall of the rotating rod 4, thereby realizing the disassembly of the stationary part 1 of the door hinge and the moving part 3 of the door hinge, which is convenient for the staff to replace.

[0029] Example 2: Refer to Appendix Figure 1-6 In this embodiment, a new energy vehicle door hinge, wherein the connecting structure 2 may further include a channel 2b1, which is processed on the inner wall of one side of the door hinge stationary piece 1.

[0030] Working principle:

[0031] Lubricating oil is injected through channel 2b1. After passing through channel 2b1, the lubricating oil can directly reach the outer wall of the ball 7 and the rod 6, thereby improving the lubrication effect.

[0032] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A door hinge for a new energy vehicle, comprising a door hinge stationary piece (1), characterized in that: A round rod (6) is fitted with a gap on one side of the inner wall of the door hinge stationary piece (1). A round block (5) is fixedly connected to both the upper and lower ends of the round rod (6). A rotating rod (4) is attached to one end of the inner side of the round block (5). A door hinge moving piece (3) is fixedly connected to the outer wall of the rotating rod (4). A connecting structure (2) is provided on one side of the round rod (6).

2. The new energy vehicle door hinge according to claim 1, characterized in that: The connecting structure (2) includes a spring (2a1), one end of which is fixedly connected to one end of the inner wall of the round rod (6), and the other end of which is fixedly connected to a square rod (2a3). One side of the outer wall of the square rod (2a3) is in clearance fit with the inner wall of the inner round block (5), and one side of the outer wall of the square rod (2a3) is in clearance fit with one end of the inner wall of the rotating rod (4). One side of the inner wall of the square rod (2a3) is threadedly connected to the outer inner wall of one end of the rotating rod (4) by a bolt (2a2).

3. The new energy vehicle door hinge according to claim 2, characterized in that: One end of the square rod (2a3) is fixedly connected to a vertical rod (8).

4. The new energy vehicle door hinge according to claim 3, characterized in that: The outer wall of the vertical rod (8) is fitted with the inner wall of the outer circular block (5) with a clearance.

5. The new energy vehicle door hinge according to claim 1, characterized in that: The inner wall groove of one side of the door hinge stationary piece (1) is fitted with a ball bearing (7).

6. The new energy vehicle door hinge according to claim 5, characterized in that: One end of the ball (7) is attached to one side of the outer wall of the round rod (6).