Anti-loosening wire harness connector

By using secondary fixing with bolts and nuts, anti-reverse insertion design with positioning grooves and positioning rods, and protection with sealing rings and rubber seats, the problems of easy detachment and reverse connection of wire harness connectors are solved, improving the connector's robustness and protection performance.

CN224264381UActive Publication Date: 2026-05-19SHENZHEN ZHONGBOTAI ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZHONGBOTAI ELECTRONIC TECH CO LTD
Filing Date
2025-04-29
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing wire harness connectors are prone to detachment and have poor connection performance, especially under external interference, they are easy to break and easy to be connected in reverse in dark environments.

Method used

The connector's robustness and protective performance are ensured by employing a secondary fixing structure with bolts and nuts, an anti-reverse insertion design with positioning grooves and positioning rods, and protective measures such as sealing rings and rubber seats.

Benefits of technology

It improves the connector's robustness, prevents loosening and reverse insertion, enhances waterproof performance, provides cushioning protection against external impacts, and extends service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224264381U_ABST
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Abstract

The utility model discloses an anti-loosening wire harness connector, which comprises a base, one side of the base is provided with a male seat shell, the male seat shell is of an opening structure, a fixed seat is fixedly arranged at the central position of one side of the front end and the rear end of the base, and a connecting seat is fixedly arranged at the central position of one side of the front end and the rear end of the male seat shell. The connecting base corresponds to the fixing base in position, a through hole is formed in the connecting base and is of a penetrating structure, a bolt is fixedly arranged outside the fixing base, one end of the bolt extends to the outside of the connecting base through the through hole, a nut is arranged outside one end of the bolt in a sleeving mode, and the nut makes contact with the connecting base. Clamping grooves are formed in the front ends and the rear ends of the upper portion and the lower portion of the interior of the male base shell, the clamping grooves are of an open structure, fixing hooks are fixedly arranged at the front ends and the rear ends of the upper portion and the lower portion of the exterior of the base, and the structure solves the problems that a connector is prone to falling off, and the connection effect of the connector is not good enough.
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Description

Technical Field

[0001] This utility model relates to the field of wire harness connector technology, specifically to a wire harness connector designed to prevent loosening. Background Technology

[0002] A wire harness connector is a device used to connect multiple wires or optical fibers together. It typically consists of two parts: a plug and a socket. Current and signals are transmitted through the contact surfaces between the plug and the socket. The terminals are the core conductive components of the connector, generally made of conductive materials such as copper alloys. Some terminals are plated with gold or silver. Male terminals are usually pins or tabs, while female terminals are sockets or clips. A stable electrical connection is established by the mating of the two. The housing is usually made of materials such as plastic or metal. Anti-loosening is an important feature of the connector.

[0003] For example, Chinese patent CN209626492U, entitled "A Wire Harness Connector," includes a female port, a female port, a female port conductive element, a female port conductive element, and a connecting sleeve; the female port and female port are provided with channels for embedding wire harnesses; the rear end of the female port is cylindrical, and the front end of the female port is semi-cylindrical with the cross-section facing downwards; a semi-cylindrical female port conductive element is provided on the cross-section of the semi-cylindrical front end of the female port, and a conductive element groove is provided on the female port conductive element; the rear end of the female port is cylindrical, and the front end of the female port is semi-cylindrical. The cross-section faces upward, and a semi-cylindrical conductive element is provided on the semi-cylindrical cross-section of the front end of the sub-port. A conductive element protrusion is provided on the conductive element. The conductive element protrusion can be embedded in the conductive element groove. The semi-cylindrical surfaces of the female port and the sub-port are provided with external threads. The inner wall of the connecting sleeve is provided with internal threads. The cross-section of the conductive element protrusion is rectangular, the cross-section of the conductive element groove is semi-circular, and there is a gap between the conductive element protrusion and the conductive element groove. The width of the gap between the conductive element protrusion and the conductive element groove is greater than or equal to the diameter of the embedded wire harness conductive wire.

[0004] While the existing technologies described above can achieve connector connection, in practical use, on the one hand, the connectors are prone to detachment. Typically, connectors are exposed to the environment and connected by threads, making them susceptible to breakage under external force, thus reducing the robustness of the connector connection. On the other hand, the connection effect of the connectors is not good enough. The connectors are usually symmetrically designed, making it easy to reverse the connection in dark environments, which can easily damage circuit components. Therefore, they do not meet the current requirements. To address this, we propose an anti-loosening wire harness connector. Utility Model Content

[0005] The purpose of this utility model is to provide a wire harness connector that prevents loosening, so as to solve the problems mentioned in the background art, such as the connector being prone to falling off and the connector having insufficient connection effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wire harness connector with anti-loosening features, including a base, a male housing on one side of the base, the male housing having an open structure, a fixing seat fixedly disposed at the center of one of the front and rear ends of the base, and a connecting seat fixedly disposed at the center of one of the front and rear ends of the male housing, the connecting seat corresponding to the fixing seat, a through hole provided inside the connecting seat, the through hole having a through structure, a bolt fixedly disposed outside the fixing seat, one end of the bolt extending through the through hole to the outside of the connecting seat, and a nut sleeved on the outside of one end of the bolt, the nut contacting the connecting seat.

[0007] Preferably, the front and rear ends of the upper and lower parts of the male seat shell are provided with snap-fit ​​grooves, which are open structures. The front and rear ends of the upper and lower parts of the base are fixedly provided with fixing hooks, which extend into the interior of the snap-fit ​​grooves and are snap-fitted and fixed with the snap-fit ​​grooves.

[0008] Preferably, the male seat shell has positioning grooves inside the upper and lower front end and the lower rear end. The positioning grooves are open structures. Positioning rods are fixedly installed on the upper and lower front end of one side and the lower rear end of one side of the base. The positioning rods extend into the interior of the positioning grooves and slide with the positioning grooves.

[0009] Preferably, a rubber seat is fixedly provided on the other side of the base and the other side of the male seat shell. Two grooves are provided on the upper and lower sides of the inside of the rubber seat, and the grooves are through-type structures.

[0010] Preferably, a sealing ring is fixedly provided on the outer side of the male seat shell near the base, and the sealing ring is in contact with the base.

[0011] Preferably, a wire is provided at the center of the interior of the rubber seat, and the wire extends into the interior of the base and the male seat housing.

[0012] Preferably, a male conductive element is fixedly disposed inside the male housing, and a female conductive element is fixedly disposed at the center of one side of the outer side of the base. The male conductive element extends into the interior of the female conductive element, and the wires at both ends are electrically connected to the male conductive element and the female conductive element, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model can fix the base and male socket shell in a secondary manner by means of nuts and bolts. When the connector is connected, the positioning of the base and male socket shell has been completed. At this time, the male socket conductive part is pushed into the female socket conductive part, and at the same time, part of the structure of the fixing hook enters the snap-fit ​​groove, so that the fixing hook bends until the male socket conductive part moves to the appropriate position. At this time, the fixing hook reaches the appropriate position of the snap-fit ​​groove and is reset. The initial fixing of the connector is completed by the snap-fit ​​fixing of the fixing hook and the snap-fit ​​groove, so as to avoid the connector from loosening during the secondary fixing. At this time, the bolt passes through the connecting seat through the through hole, and the operator puts the nut on the outside of the bolt and rotates it until the nut moves to the appropriate position. At this time, the nut contacts the connecting seat, thereby improving the firmness of the connector connection.

[0015] (2) This utility model can prevent the connector from being inserted backwards by using a positioning groove and a positioning rod. When connecting the connector, the operator holds the base and the male connector shell, aligns the male connector conductive part with the opening of the female connector conductive part and inserts it into the female connector conductive part. If the base and the male connector shell are reversed, the positioning rod located above the rear end of the base will abut against the side wall of the male connector shell, making it difficult for the male connector conductive part to enter the female connector conductive part. At this time, the operator will change the direction of the base and continue the connection operation. The positioning rod located on the base will enter the matching positioning groove until the initial connection between the base and the male connector shell is completed, avoiding the situation of the connector being reversed in the dark environment, thereby improving the connection effect of the connector.

[0016] (3) This utility model can improve the protective performance of the connector through the sealing ring and rubber seat. When the connector is connected, the sealing ring on the male housing contacts the base and causes compression, which reduces the gap at the connection between the male housing and the base. This prevents dust and moisture in the environment from entering the connector through the gap during the use of the connector, thereby improving the waterproof performance of the connector. At the same time, the rubber block wrapped around the outside of the wire can absorb and disperse some energy when the wire is subjected to external impact or vibration, playing a buffering and shock absorption role, reducing the impact force on the connection between the wire and the male housing and the base, thereby extending the service life of the connector. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a front view of the internal structure of this utility model;

[0019] Figure 3 This is a side view of the internal structure of this utility model;

[0020] Figure 4 For the present utility model Figure 3Enlarged view of a portion of region A in the middle.

[0021] In the diagram: 1. Base; 2. Male connector housing; 3. Rubber seat; 4. Wire; 5. Snap-fit ​​groove; 6. Fixing hook; 7. Positioning groove; 8. Positioning rod; 9. Fixing seat; 10. Bolt; 11. Connecting seat; 12. Nut; 13. Groove; 14. Sealing ring; 15. Female connector conductive component; 16. Male connector conductive component; 17. Through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 The present invention provides an embodiment of a wire harness connector for preventing loosening, comprising a base 1, a male housing 2 on one side of the base 1, the male housing 2 having an open structure, a wire 4 disposed at the center of the interior of a rubber seat 3, the wire 4 extending into the interior of the base 1 and the male housing 2, a male conductive element 16 fixedly disposed inside the male housing 2, a female conductive element 15 fixedly disposed at the center of the outer side of the base 1, the male conductive element 16 extending into the interior of the female conductive element 15, and the two ends of the wire 4 being electrically connected to the male conductive element 16 and the female conductive element 15 respectively.

[0024] Please see Figure 1 , Figure 3 and Figure 4 A fixing seat 9 is fixedly installed at the center of one of the front and rear ends of the base 1. A connecting seat 11 is fixedly installed at the center of one of the front and rear ends of the male seat shell 2. The connecting seat 11 corresponds to the fixing seat 9. The connecting seat 11 has a through hole 17 inside. The through hole 17 is a through structure. A bolt 10 is fixedly installed on the outside of the fixing seat 9. One end of the bolt 10 extends to the outside of the connecting seat 11 through the through hole 17. A nut 12 is sleeved on the outside of one end of the bolt 10. The nut 12 contacts the connecting seat 11. The front and rear ends of the upper and lower parts of the male seat shell 2 are provided with snap-fit ​​grooves 5. The snap-fit ​​grooves 5 are open structures. The front and rear ends of the upper and lower parts of the base 1 are fixedly installed with fixing hooks 6. The fixing hooks 6 extend into the inside of the snap-fit ​​grooves 5 and are snap-fitted with the snap-fit ​​grooves 5, which facilitates secondary fixation of the connecting seat 11 by bolts 10 and nuts 12.

[0025] Please see Figure 1 and Figure 3The male base shell 2 has positioning grooves 7 inside the upper and lower front end and the lower rear end. The positioning grooves 7 are open structures. Positioning rods 8 are fixedly installed on the upper and lower front end and the lower rear end of one side of the base 1. The positioning rods 8 extend into the interior of the positioning grooves 7 and slide with the positioning grooves 7, which facilitates the connection and positioning of the connector through the positioning rods 8 and the positioning grooves 7.

[0026] Please see Figure 1 and Figure 2 Rubber seats 3 are fixedly installed on the other side of the base 1 and the other side of the male seat shell 2. Two grooves 13 are provided on the upper and lower sides of the rubber seat 3. The grooves 13 are through structures. A sealing ring 14 is fixedly installed on the outside of the male seat shell 2 near the base 1. The sealing ring 14 contacts the base 1, which facilitates the use of the rubber seat 3 to reduce the damage of the wire 4 due to bending.

[0027] Working principle: During use, the operator holds the base 1 and the male connector housing 2, aligns the male connector conductive component 16 with the opening of the female connector conductive component 15, and inserts it into the female connector conductive component 15. If the base 1 and the male connector housing 2 are reversed, the positioning rod 8 located above the rear end of the base 1 will abut against the side wall of the male connector housing 2, making it difficult for the male connector conductive component 16 to enter the female connector conductive component 15. At this time, the operator reverses the direction of the base 1 and continues the connection operation. At this time, the positioning rod 8 on the base 1 enters the matching positioning groove 7, and at the same time, part of the structure of the fixing hook 6 enters the snap-fit ​​groove 5, causing the fixing hook 6 to bend until the male connector conductive component 16 moves to the appropriate position. At this time, the fixing hook 6 reaches the appropriate position of the snap-fit ​​groove 5 and resets. The initial fixing of the connector is completed by the snap-fit ​​fixing of the fixing hook 6 and the snap-fit ​​groove 5. Then, the operator puts the nut 12 on the outside of the bolt 10 and rotates it until the nut 12 moves to the appropriate position. At this time, the nut 12 contacts the connector 11.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wire harness connector with anti-loosening feature, comprising a base (1), characterized in that: A male seat shell (2) is provided on one side of the base (1). The male seat shell (2) has an open structure. A fixed seat (9) is fixedly provided at the center of the front and rear ends of the base (1). A connecting seat (11) is fixedly provided at the center of the front and rear ends of the male seat shell (2). The connecting seat (11) corresponds to the fixed seat (9). A through hole (17) is provided inside the connecting seat (11). The through hole (17) has a through structure. A bolt (10) is fixedly provided on the outside of the fixed seat (9). One end of the bolt (10) extends to the outside of the connecting seat (11) through the through hole (17). A nut (12) is sleeved on the outside of one end of the bolt (10). The nut (12) contacts the connecting seat (11).

2. The anti-loosening wire harness connector according to claim 1, characterized in that: The front and rear ends of the upper and lower parts of the male seat shell (2) are provided with snap-fit ​​grooves (5). The snap-fit ​​grooves (5) are open structures. The front and rear ends of the upper and lower parts of the base (1) are fixedly provided with fixing hooks (6). The fixing hooks (6) extend into the interior of the snap-fit ​​grooves (5) and are snap-fitted and fixed with the snap-fit ​​grooves (5).

3. The anti-loosening wire harness connector according to claim 2, characterized in that: The upper and lower front end and the lower rear end of the male seat shell (2) are provided with positioning grooves (7). The positioning grooves (7) are open structures. The upper and lower front end and the lower rear end of one side of the base (1) are fixedly provided with positioning rods (8). The positioning rods (8) extend into the interior of the positioning grooves (7) and slide with the positioning grooves (7).

4. The anti-loosening wire harness connector according to claim 3, characterized in that: A rubber seat (3) is fixedly installed on the other side of the base (1) and the other side of the male seat shell (2). Two grooves (13) are provided on the upper and lower sides of the inside of the rubber seat (3). The grooves (13) are through structures.

5. The anti-loosening wire harness connector according to claim 4, characterized in that: A sealing ring (14) is fixedly installed on the outside of the male seat shell (2) near the base (1), and the sealing ring (14) is in contact with the base (1).

6. The anti-loosening wire harness connector according to claim 5, characterized in that: A wire (4) is provided at the center of the interior of the rubber seat (3), and the wire (4) extends into the interior of the base (1) and the male seat shell (2).

7. The anti-loosening wire harness connector according to claim 6, characterized in that: The male seat shell (2) is fixedly provided with a male seat conductive component (16) inside, and a female seat conductive component (15) is fixedly provided at the center of one side of the base (1). The male seat conductive component (16) extends into the interior of the female seat conductive component (15), and the wires (4) at both ends are electrically connected to the male seat conductive component (16) and the female seat conductive component (15) respectively.