New energy vehicle waterproof wire harness joint

By introducing a waterproof mechanism into the automotive wiring harness connector, and utilizing structures such as abutment, insertion ring, sealing ring, and threaded sleeve, the problem of insufficient waterproof performance of existing wiring harness connectors is solved, achieving a more stable waterproof and connection effect.

CN224418076UActive Publication Date: 2026-06-26GUANGZHOU ZHENGONG ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU ZHENGONG ELECTRONICS CO LTD
Filing Date
2025-05-08
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing automotive wiring harness connectors have poor waterproof performance, especially due to the poor impact resistance of the adhesive fixing structure, which leads to a decrease in the stability and waterproof performance of the adhesive after aging.

Method used

The waterproof mechanism includes an abutment platform, a plug ring, a first sealing ring, a threaded sleeve, a protective sleeve, and an alignment device. It achieves a stable connection between the male and female connectors through plug-in and threaded connections, and uses multiple sealing rings and rubber rings for sealing to enhance waterproof performance.

Benefits of technology

It improves the waterproof performance and stability of the joint, avoids the decline in waterproof performance caused by aging of the adhesive, and achieves a more stable waterproof effect.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224418076U_ABST
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Abstract

The utility model relates to the technical field of automobile wire harness, specifically relates to a new energy vehicle waterproof wire harness connector, including connector male, connector female seat and waterproof mechanism, waterproof mechanism includes abutting platform, plug -in ring, first sealing washer, threaded bush, protective sleeve and alignment device, and the connector male is installed on the connector female seat through alignment device cooperation when connecting, and the abutting platform carries out spacing abutment when plugging, and the first sealing washer of installation of the sleeve on the plug -in ring can slide into the sealing of the cooperation cavity on the connector female seat, further sliding the protective sleeve of wire harness outside of the connector male is prearranged and is connected with threaded bush screw thread, realizes the connection of connector male and connector female seat Anti -loose processing, the waterproof treatment of the connector male and the connector female seat plug -in after through the first sealing washer in the structure of the application, and the structure is more stable compared with the waterproof of the existing bonding structure, and the anti -drop -out effect is also better, and then can realize the structure optimization, is favorable to the promotion connector overall waterproof performance.
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Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness technology, specifically to a waterproof wiring harness connector for new energy vehicles. Background Technology

[0002] Automotive wiring harnesses are the main network of a vehicle's electrical system. They consist of copper-plated contact terminals (connectors) crimped to wires and cables, then covered with a plastic insulator or an outer metal shell, and bundled together to form a connected circuit. Current automotive wiring harness connectors typically align the male and female connector heads and insert them together, relying on their own resistance to maintain a stable connection. However, existing automotive wiring harness connectors often have poor waterproofing at the connection point between the male and female heads.

[0003] A search revealed that prior art CN221201614U discloses a new energy vehicle wiring harness connector, including a male connector and a female connector. The male connector is inserted into the female connector, and an insulating pad is fitted onto the male connector. The female connector has an annular groove on its outer side. The left side of the insulating pad is bonded and fixed to the male connector, and the right side of the insulating pad has a right opening. Inside the right opening, an annular retaining strip that matches the annular groove is integrally connected. The inner circle of the annular retaining strip has a structure that is smaller on the left and larger on the right. This utility model achieves sealing and retaining at the connection between the male connector and the female connector through the insulating pad, which not only improves the connection stability between the male connector and the female connector and provides high anti-detachment performance, but also achieves waterproof performance.

[0004] However, the above-mentioned connector has the following problems in actual use: the left side of the insulating pad is bonded and fixed to the male connector, and the right side can be plugged into the female connector to achieve a stable connection and waterproof performance between the male connector and the female connector. However, the bonding and fixing has poor impact resistance, and the adhesive is prone to aging over time, resulting in poor stability, which will seriously reduce the overall waterproof performance of the connector. Utility Model Content

[0005] The purpose of this utility model is to provide a waterproof wiring harness connector for new energy vehicles, which can achieve structural optimization and improve the overall waterproof performance of the connector.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a waterproof wiring harness connector for new energy vehicles, including a male connector and a female connector, wherein the male connector is inserted and installed on one side of the female connector, and also includes a waterproof mechanism;

[0007] The waterproof mechanism includes an abutment platform, a plug ring, a first sealing ring, a threaded sleeve, a protective sleeve, and an alignment device. The abutment platform is integrally formed with the male connector and abuts against the female connector. The plug ring is slidably connected to the mating cavity on the female connector and is integrally formed with the abutment platform. The first sealing ring is sleeved and installed on the outside of the plug ring and can slide into the mating cavity on the female connector. The threaded sleeve is integrally formed with the female connector and is located on the side of the female connector closer to the male connector. The protective sleeve is slidably connected to the wire harness of the male connector and threadedly connected to the threaded sleeve. A waterproof device is provided between the protective sleeve and the wire harness of the male connector. The alignment device is located on the side of the male connector closer to the female connector.

[0008] The waterproofing mechanism also includes an O-ring, which is installed on the connector female and abuts against the end face of the abutment platform.

[0009] The alignment device includes a positioning boss and a positioning pin. The positioning boss is integrally formed with the abutment platform and is symmetrically arranged. The positioning pin is integrally formed with the positioning boss and slides into the positioning hole of the connector female.

[0010] The waterproofing device includes a rubber ring and a second sealing ring. The rubber ring is installed in a mounting groove in the wire harness through hole of the protective sleeve; the second sealing ring is installed in a mounting groove in the wire harness through hole on the side of the protective sleeve near the rubber ring.

[0011] The protective sleeve has multiple anti-slip strips integrally arranged on its outer side, and the multiple anti-slip strips are evenly spaced in a ring.

[0012] This utility model discloses a waterproof wiring harness connector for new energy vehicles. During connection, the male connector is inserted into the female connector using an alignment device. During insertion, a stop plate provides limiting contact, and a first sealing ring fitted on the insertion ring slides into the mating cavity of the female connector for sealing. Furthermore, a protective sleeve pre-set on the outside of the wiring harness on the male connector slides and connects it to the threaded sleeve, thereby achieving anti-loosening treatment of the connection between the male connector and the female connector. In the structure of this application, the first sealing ring enables waterproofing after the male connector and the female connector are inserted. Moreover, compared with the existing adhesive structure, this structure is more stable in waterproofing and has a better anti-detachment effect, thus achieving structural optimization and improving the overall waterproof performance of the connector. Attached Figure Description

[0013] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0014] Figure 1This is a schematic diagram of the overall structure of the waterproof wiring harness connector for new energy vehicles according to the first embodiment of this utility model.

[0015] Figure 2 This is a cross-sectional view of the protective sleeve according to the first embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the threaded sleeve according to the first embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the overall structure of the waterproof wiring harness connector for new energy vehicles according to the second embodiment of this utility model.

[0018] In the diagram: 101-male connector, 102-female connector, 103-abutment platform, 104-insertion ring, 105-first sealing ring, 106-threaded sleeve, 107-protective sleeve, 108-O-ring, 109-positioning boss, 110-positioning pin, 111-rubber ring, 112-second sealing ring, 201-anti-slip strip. Detailed Implementation

[0019] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Example 1:

[0021] like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of the waterproof wiring harness connector for new energy vehicles. Figure 2 This is a cross-sectional view of the protective sleeve 107. Figure 3 This is a schematic diagram of the threaded sleeve 106. This utility model provides a waterproof wiring harness connector for new energy vehicles: it includes a male connector 101, a female connector 102, and a waterproof mechanism. The waterproof mechanism includes an abutment platform 103, a insertion ring 104, a first sealing ring 105, a threaded sleeve 106, a protective sleeve 107, an O-ring gasket 108, and an alignment device. The alignment device includes a positioning boss 109 and a positioning pin 110. The mating waterproof device includes a rubber ring 111 and a second sealing ring 112. The aforementioned solution achieves structural optimization, which helps improve the overall waterproof performance of the connector. It is understood that the aforementioned solution can improve the overall waterproof performance of the connector.

[0022] In this embodiment, the male connector 101 is inserted and installed on one side of the female connector 102.

[0023] The abutment platform 103 is integrally formed with the male connector 101 and abuts against the female connector 102. The insertion ring 104 is slidably connected to the mating cavity on the female connector 102 and is integrally formed with the abutment platform 103. The first sealing ring 105 is sleeved and installed on the outside of the insertion ring 104 and can slide into the mating cavity on the female connector 102. The threaded sleeve 106 is integrally formed with the female connector 102 and is located on the side of the female connector 102 near the male connector 101. The protective sleeve 107 is slidably connected to the wire harness of the male connector 101 and threadedly connected to the threaded sleeve 106. A waterproof device is provided between the protective sleeve 107 and the wire harness of the male connector 101. The alignment device is located on the side of the male connector 101 near the female connector 102. The threaded sleeve 106 and the mating cavity are integrally provided on the female connector 102. The threaded sleeve 106 is connected and mated with the external thread end of the protective sleeve 107. The mating cavity is used for the sliding installation of the insertion ring 104. The insertion ring 104 is provided with an installation groove on its outer side. The first sealing ring 105 is installed in the installation groove. The first sealing ring 105 is O-shaped and made of wear-resistant rubber. The protective sleeve 107 is pre-installed when the wire harness of the male connector 101 is installed. The alignment device is used for connection and alignment. The mating waterproof device is used for waterproofing assistance.

[0024] Secondly, the O-ring 108 is installed on the connector female 102 and abuts against the end face of the abutment platform 103. The connector female 102 is provided with an installation groove to facilitate the installation of the O-ring 108. The O-ring 108 is a rubber gasket for further waterproofing.

[0025] Then, the positioning boss 109 and the abutment platform 103 are integrally formed and symmetrically arranged; the positioning pin 110 is integrally formed with the positioning boss 109 and slides into the positioning hole of the connector female 102. The positioning boss 109 is integrally set on the abutment platform 103, and the positioning pin 110 is integrally set on the positioning boss 109 and can be inserted into the positioning hole of the connector female 102. Both the positioning boss 109 and the positioning pin 110 are made of insulating material.

[0026] Finally, the rubber ring 111 is installed in the mounting groove within the wire harness through-hole of the protective sleeve 107; the second sealing ring 112 is installed in the mounting groove within the wire harness through-hole of the protective sleeve 107 on the side near the rubber ring 111. The rubber ring 111 is used for wire harness support, and the second sealing ring 112 is used for waterproofing, preventing external water from entering the cavity between the male connector 101 and the protective sleeve 107 through the wire harness.

[0027] When using this utility model to optimize the structure and improve the overall waterproof performance of the connector, during connection, the male connector 101 is inserted into the female connector 102 through the alignment device. During insertion, the abutment platform 103 provides limiting abutment, and the first sealing ring 105, which is sleeved on the insertion ring 104, can slide into the mating cavity on the female connector 102 for sealing. The O-ring 108 further provides waterproof sealing. Furthermore, the protective sleeve 107, which is pre-set on the outside of the wire harness of the male connector 101, is slid and threadedly connected to the threaded sleeve 106, thereby achieving anti-loosening treatment of the connection between the male connector 101 and the female connector 102 to prevent detachment. In the structure of this application, the first sealing ring 105 can provide waterproof treatment after the male connector 101 and the female connector 102 are inserted. Moreover, this structure is more stable in waterproofing and has a better anti-detachment effect compared with the existing adhesive structure, thus achieving structural optimization and improving the overall waterproof performance of the connector.

[0028] Example 2:

[0029] like Figure 4 As shown, where Figure 4 This is a schematic diagram of the overall structure of a waterproof wiring harness connector for new energy vehicles. Based on the first embodiment, this utility model provides a waterproof wiring harness connector for new energy vehicles. The outer side of the protective sleeve 107 is provided with multiple anti-slip strips 201, which are arranged in a ring at uniform intervals.

[0030] In this embodiment, multiple anti-slip strips 201 are uniformly spaced in an integral ring on the outer side of the protective sleeve 107, which facilitates anti-slip treatment when the protective sleeve 107 is installed or removed.

[0031] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A waterproof wiring harness connector for new energy vehicles, comprising a male connector and a female connector, wherein the male connector is inserted and installed on one side of the female connector, characterized in that: It also includes waterproofing mechanisms; The waterproof mechanism includes an abutment platform, a plug ring, a first sealing ring, a threaded sleeve, a protective sleeve, and an alignment device. The abutment platform is integrally formed with the male connector and abuts against the female connector. The plug ring is slidably connected to the mating cavity on the female connector and is integrally formed with the abutment platform. The first sealing ring is sleeved and installed on the outside of the plug ring and can slide into the mating cavity on the female connector. The threaded sleeve is integrally formed with the female connector and is located on the side of the female connector closer to the male connector. The protective sleeve is slidably connected to the wire harness of the male connector and threadedly connected to the threaded sleeve. A waterproof device is provided between the protective sleeve and the wire harness of the male connector. The alignment device is located on the side of the male connector closer to the female connector.

2. The waterproof wiring harness connector for new energy vehicles as described in claim 1, characterized in that: The waterproofing mechanism also includes an O-ring, which is installed on the connector female and abuts against the end face of the abutment platform.

3. The waterproof wiring harness connector for new energy vehicles as described in claim 1, characterized in that: The alignment device includes a positioning boss and a positioning pin. The positioning boss is integrally formed with the abutment platform and is symmetrically arranged. The positioning pin is integrally formed with the positioning boss and slides into the positioning hole of the connector female.

4. The waterproof wiring harness connector for new energy vehicles as described in claim 1, characterized in that: The waterproofing device includes a rubber ring and a second sealing ring. The rubber ring is installed in a mounting groove in the wire harness through hole of the protective sleeve; the second sealing ring is installed in a mounting groove in the wire harness through hole of the protective sleeve on the side near the rubber ring.

5. The waterproof wiring harness connector for new energy vehicles as described in claim 1, characterized in that: The outer side of the protective sleeve is integrally provided with multiple anti-slip strips, which are arranged in a ring at even intervals.