A connector and battery box for mitigating shock-induced wear
By combining multi-point limiting and rubber buffer ring design, the wear problem of battery module connectors in vibration environment is solved, and a highly reliable and long-life plug-in connection is achieved.
Patent Information
- Application Number
- CN202521568141.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-25
AI Technical Summary
Existing battery module connectors are prone to fretting wear, poor contact, and reduced overcurrent capacity under frequent plugging and unplugging and vibration environments, and have large assembly errors and high maintenance costs.
By employing a multi-point limiting design and a rubber buffer ring, a stable connection between the female and male terminals of the connector is achieved through a combination of connecting protrusions, limiting grooves, limiting posts, locking protrusions, and a rubber buffer ring. The rubber buffer ring absorbs vibration frequencies, keeping the vibration frequency of the battery module consistent.
It effectively reduces vibration and wear, improves the reliability and lifespan of plug-in connections, and reduces maintenance costs.
Smart Images
Figure CN224683425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, specifically a connector and battery box for mitigating vibration and wear. Background Technology
[0002] With the promotion of new energy sources, more and more people are using electric bicycles. The battery module is the most important power supply component in an electric bicycle. Battery modules need frequent plugging and unplugging for replacement and are subjected to vibration and impact from the vehicle or equipment over long periods. Existing connectors suffer from several problems: the female and male terminals rely solely on a simple mating fit, making them prone to fretting wear during vibration; the connectors are rigidly connected to external structures; and the different vibration frequencies of the battery and the bicycle cause connector wear and wobbling, resulting in poor contact, reduced current carrying capacity, large assembly errors, and high maintenance costs. Utility Model Content
[0003] To address the problems mentioned in the background art, this utility model provides a connector for mitigating vibration and wear, comprising a female connector end, a male connector end, a male connector end fixing component, a male pin, and a female pin. The female connector end has a connecting protrusion on its back side, and several limiting grooves are provided around the connecting protrusion. Several insertion grooves are provided at the center of the female connector end. A through hole is provided in the middle of the female connector end, and a second through hole is provided in the middle of the male connector end. An insertion cavity is provided on one side of the male connector end, and corresponding grooves are provided around the inner periphery of the insertion cavity. The limiting post of the limiting groove, the insertion post with a corresponding insertion groove in the center of the insertion cavity, the other side of the male end of the connector has a locking protrusion, the outer side of the locking protrusion is fitted with a rubber buffer ring, the male end fixing part has a locking groove with a corresponding locking protrusion, the female end of the connector is connected to the insertion cavity of the male end of the connector through the connecting protrusion, the male end of the connector is connected to the male end fixing part through the locking protrusion, one end of the male needle is inserted into the second through hole of the connector, the other end of the male needle is inserted into one end of the female needle, and the other end of the female needle is inserted into the first through hole.
[0004] The insertion slots at the center of the female end of the connector are arranged in a triangle, and the insertion posts at the center of the insertion cavity corresponding to the insertion slots are also arranged in a triangle.
[0005] The upper end of the positioning protrusion is provided with a groove, and the left and right sides and the lower end are provided with protrusions. The rubber buffer ring is provided with a limiting structure corresponding to the outer contour of the positioning protrusion.
[0006] Several limiting blocks are provided above the connecting protrusion on one side of the female end of the connector.
[0007] The diameter of the opening on the side of the through hole closest to the connecting protrusion is smaller than the diameter of the opening on the other side.
[0008] A battery box includes a connector for mitigating vibration and wear, a guide rail, and a battery box housing. One side of the female connector is connected to the battery box housing, one end of the male connector is connected to one end of the guide rail, and the lower end of the battery box housing is connected to the guide rail.
[0009] Compared with the prior art, this utility model reduces the relative micro-movement between the female and male terminals of the connector by using multi-point limiting and buffer isolation. By using a rubber buffer ring to absorb vibration frequency, the overall vibration frequency of the connector is kept consistent with that of the battery, thus alleviating vibration wear and achieving a highly reliable and long-life plug-in connection for the battery module. Attached Figure Description
[0010] Figure 1 A schematic diagram of a connector designed to mitigate vibration and wear. Figure 2 Exploded view of connectors designed to mitigate vibration and wear; Figure 3 Cross-sectional view of a connector designed to mitigate vibration and wear; Figure 4 This is a schematic diagram of the female end of the connector; Figure 5 This is a schematic diagram of one side of the male connector. Figure 6 This is a schematic diagram of the other side of the male connector. Figure 7 This is a schematic diagram of the battery box structure. See attached diagram: 1. Female connector end; 2. Male connector end; 3. Male connector fixing piece; 4. Connecting protrusion; 5. Limiting groove; 6. Connecting groove; 7. Through hole one; 8. Through hole two; 9. Limiting post; 10. Locking protrusion; 11. Connecting post; 12. Rubber buffer ring; 13. Male pin; 14. Female pin; 15. Limiting block; 16. Groove; 17. Protrusion; 18. Guide rail; 19. Battery box housing. Detailed Implementation
[0011] The present invention will be further described below with reference to the accompanying drawings.
[0012] like Figure 1A connector for mitigating vibration and wear includes a female connector 1, a male connector 2, a male connector retainer 3, a male pin 13, and a female pin 14. The female connector 1 has a connecting protrusion 4 on its back side, and several limiting grooves 5 around its periphery. The female connector 1 has several insertion grooves 6 at its center. The female connector 1 has a through hole 7 in its center. The male connector 2 has a through hole 8 in its center. The male connector 2 has an insertion cavity on one side, with limiting posts 9 corresponding to the limiting grooves 5 on its inner periphery. The insertion cavity also has a corresponding... The insertion post 11 of the insertion slot 6 has a locking protrusion 10 on the other side of the male end 2 of the connector. A rubber buffer ring 12 is sleeved on the outside of the locking protrusion 10. A corresponding slot is provided in the male end fixing member 3. The female end 1 of the connector is connected to the insertion cavity of the male end 2 of the connector through the connecting protrusion 4. The male end 2 of the connector is connected to the male end fixing member 3 through the locking protrusion 10. One end of the male pin 13 is inserted into the second through hole 8 of the connector. The other end of the male pin 13 is inserted into one end of the female pin 14. The other end of the female pin 14 is inserted into the first through hole 7.
[0013] The insertion slots 6 at the center of the female end 1 of the connector are arranged in a triangle, and the insertion posts 11 at the center of the insertion cavity corresponding to the insertion slots 6 are arranged in a triangle, which improves the anti-torsion ability during insertion and removal.
[0014] The upper end of the locking protrusion 10 is provided with a groove 16, and the left and right sides and the lower end are provided with protrusions 17. The rubber buffer ring 12 is provided with a limiting structure corresponding to the outer contour of the locking protrusion 10 to achieve circumferential limiting and prevent the buffer ring from falling off and failing.
[0015] Several limiting blocks 15 are provided above the connecting protrusion 4 on one side of the female end 1 of the connector.
[0016] The diameter of the opening on the side of the through hole 7 closest to the connecting protrusion 4 is smaller than the diameter of the opening on the other side.
[0017] A battery box includes a connector to mitigate vibration and wear, a guide rail 18, and a battery box housing 19. One side of the female connector 1 is connected to the battery box housing 19, one end of the male connector 2 is connected to one end of the guide rail 18, and the lower end of the battery box housing 19 is connected to the guide rail 18.
[0018] The female end 1 of the connector engages with the insertion cavity of the male end 2 of the connector through the connecting protrusion 4. The limiting groove 5 and the limiting post 9 correspond one-to-one to achieve a foolproof design. The limiting block 15 abuts against the outer shell to complete the secondary limiting. The male pin 13 and the female pin 14 complete the electrical connection. The rubber buffer ring 12 forms an elastic buffer between the locking protrusion 10 and the locking groove.
[0019] The female connector 1 is fixed to the front end of the battery box housing 19 by screws and clips, and the upper end of the male connector 2 is fixed to the end of the guide rail 18 by screws. Vibrations generated during vehicle operation are first transmitted to the male connector fixing part 3 through the guide rail 18, and then absorbed and attenuated by the rubber buffer ring 12, with only a small amount of energy being transmitted to the connector, thereby significantly reducing wear.
Claims
1. A connector for mitigating vibration and wear, comprising a female connector end (1), a male connector end (2), a male connector fixing member (3), a male pin (13), and a female pin (14), characterized in that: The female end (1) of the connector has a connecting protrusion (4) on its back side, and several limiting grooves (5) are provided around the connecting protrusion (4). Several insertion grooves (6) are provided in the center of the female end (1) of the connector. A through hole (7) is provided in the middle of the female end (1) of the connector. A through hole (8) is provided in the middle of the male end (2) of the connector. An insertion cavity is provided on one side of the male end (2) of the connector. A limiting post (9) corresponding to the limiting groove (5) is provided on the periphery of the insertion cavity. An insertion post (11) corresponding to the insertion groove (6) is provided in the center of the insertion cavity. The other side of the male end (2) of the connector has The locking protrusion (10) is fitted with a rubber buffer ring (12) on the outside of the locking protrusion (10). The male end fixing part (3) is provided with a corresponding locking protrusion (10). The female end (1) of the plug-in is connected to the insertion cavity of the male end (2) of the plug-in through the connecting protrusion (4). The male end (2) of the plug-in is connected to the male end fixing part (3) through the locking protrusion (10). One end of the male pin (13) is inserted into the second through hole (8) of the connector. The other end of the male pin (13) is inserted into one end of the female pin (14). The other end of the female pin (14) is inserted into the first through hole (7).
2. The connector for mitigating vibration and wear according to claim 1, characterized in that: The insertion slots (6) at the center of the female end (1) of the connector are arranged in a triangle, and the insertion posts (11) at the center of the insertion cavity corresponding to the insertion slots (6) are arranged in a triangle.
3. A connector for mitigating vibration and wear according to claim 1, characterized in that: The upper end of the positioning protrusion (10) is provided with a groove (16), and the left and right sides and the lower end are provided with protrusions (17) extending outward. The rubber buffer ring (12) is provided with a limiting structure corresponding to the outer contour of the positioning protrusion (10).
4. A connector for mitigating vibration and wear according to claim 1, characterized in that: Several limiting blocks (15) are provided above the connecting protrusion (4) on one side of the female end (1) of the connector.
5. A connector for mitigating vibration and wear according to claim 1, characterized in that: The diameter of the opening of the through hole 1 (7) near the connecting protrusion (4) is smaller than the diameter of the opening on the other side.
6. A battery box, characterized in that: The connector for mitigating vibration and wear as described in any one of claims 1-5 includes a guide rail (18) and a battery housing (19). One side of the female end (1) of the connector is connected to the battery housing (19), one end of the male end (2) of the connector is connected to one end of the guide rail (18), and the lower end of the battery housing (19) is connected to the guide rail (18).