A waterproof low-voltage wiring harness connector
By designing a sliding sealing component and a fixed snap-fit structure for the waterproof low-voltage wiring harness connector, the problem of water ingress into the wiring harness connector on flooded roads was solved, achieving better sealing performance and connection stability, and ensuring driving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YONGSHENG ELECTRIC CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-07-10
AI Technical Summary
Existing low-voltage wiring harness connectors are prone to water ingress when vehicles drive through flooded roads, leading to short circuits, affecting driving safety, and their simple structure makes them unable to effectively waterproof.
A waterproof low-voltage wire harness connector was designed, which adopts a sliding sealing component and a fixed snap-fit structure. The sealing clamping is achieved by the relative movement of the annular shell and the sealing plate, and the connection stability is enhanced by the toothed meshing. The waterproof rating is improved by the lip seal.
It achieves better waterproofing and connection stability, enhances the sealing performance of the wire harness connector, prevents short circuits, and improves driving safety.
Smart Images

Figure CN224481265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness manufacturing technology, and in particular to a waterproof low-voltage wire harness connector. Background Technology
[0002] Automotive wiring harnesses are divided into high-voltage and low-voltage types, both of which are manufactured using multi-core copper wire. The conductor cross-sectional area is mainly selected based on the operating current. In automotive low-voltage wiring harnesses, connections between harnesses and between harnesses and instruments are made via harness connectors. These connectors consist of male and female plugs that can be inserted into each other. However, their simple structure makes them ineffective at preventing water damage. When vehicles frequently drive through flooded areas, water can easily enter the harness connectors, causing short circuits and affecting driving safety. Improvements are urgently needed. Utility Model Content
[0003] The purpose of this invention is to provide a waterproof low-voltage wire harness connector that achieves better waterproof performance and has a simple and more stable sealed installation structure.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0005] A waterproof low-voltage wire harness connector, characterized in that it includes a first connector and a second connector. The first connector has a male terminal block at its connection point, and the second connector has a connection groove at its connection point. A female terminal slot adapted to the male terminal block is provided in the connection groove. A sliding sealing component is provided on the outer edge of the first connector at its connection point. A sealing ring is provided on the outer periphery of the second connector corresponding to the sliding sealing component. Two sets of fixing buckles are symmetrically arranged on the upper and lower sides of the second connector, and the two sets of fixing buckles are limited and locked to one end of the sliding sealing component.
[0006] Preferably, the sliding sealing assembly includes an annular shell and a sealing plate. The first connector has a fixed annular seat protruding from the outer edge of the connection. The annular shell has a movable groove on its inner side that is perpendicular to the first connector. The fixed annular seat is disposed on one side of the movable groove. The annular shell is rotatably sleeved on the fixed annular seat. Multiple sets of sealing plates are disposed between the fixed annular seat and the inner wall of the annular shell in the movable groove. The multiple sets of sealing plates are slidably installed in the movable groove in a ring array. Multiple sets of arc-shaped grooves are correspondingly disposed on the inner wall of the annular shell near the sealing plate. Each set of sealing plates is provided with a slider corresponding to the arc-shaped groove. The slider moves within the arc-shaped groove and is limited in movement. The inner side of the sealing plate is fitted and sealed with the sealing ring.
[0007] Preferably, each set of sealing plates has a receiving groove on one end of its inner side, and a sealing strip is laid in the receiving groove, and the sealing strip is in close and sealed contact with the sealing ring.
[0008] Preferably, a sealing groove is formed on the surface of the connection of the second connector, and the sealing ring is filled in the sealing groove.
[0009] Preferably, the sidewalls of the annular shell and the outer wall near the first connector are provided with toothed grooves at equal intervals.
[0010] Preferably, one end of the fixing buckle is fixedly connected to the second connector via a connecting seat, and the other end of the fixing buckle extends to the outer wall of the annular shell near the first connector.
[0011] Preferably, the other end of the fixing buckle is provided with a limiting block on the outer wall of the annular shell near the first connector, and the inner side of the limiting block is pressed against the outer wall of the annular shell.
[0012] Preferably, the inner side of the limiting block and the inner side of the fixing buckle are provided with tooth grooves that mesh with the tooth grooves on the side wall and outer wall of the annular shell.
[0013] Preferably, the first connector has a T-groove at the connection end with the second connector, and the T-groove is filled with a lip seal.
[0014] In summary, the beneficial effects of this utility model are as follows: By rotating the annular outer shell of the sliding sealing assembly, and through the relative movement of the internal arc groove and the slider, this utility model achieves the limiting rotation of multiple sealing plates, thereby enabling sealing and clamping with the sealing ring of the second connecting piece. This enhances the connection strength and provides a better sealing and waterproofing effect. Subsequently, the connection can be made more secure by fixing buckles, and the subsequent annular outer shell can be stopped by the meshing of the toothed grooves, resulting in a longer sealing time and a better sealing effect. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 yes Figure 2 A schematic diagram of the structure at point AA. Detailed Implementation
[0017] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.
[0018] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.
[0019] like Figure 1 and 2 The waterproof low-voltage wire harness connector shown includes a first connector 1 and a second connector 2. The first connector 1 has a male terminal block 3 at its connection point, and the second connector 2 has a connection groove 4 at its connection point. The connection groove 4 has a female terminal slot 5 that is compatible with the male terminal block 3. The first connector 1 has a sliding sealing component at the outer edge of its connection point, and the second connector 2 has a sealing ring 6 at the outer periphery corresponding to the sliding sealing component. The second connector 2 has two sets of fixing buckles 7 symmetrically arranged on its upper and lower sides, and the two sets of fixing buckles 7 are limited and locked with one end of the sliding sealing component.
[0020] The sliding sealing assembly includes an annular shell 8 and sealing plates 9. A fixed annular seat 10 is provided on the outer edge of the first connecting member 1 at the connection point. A movable groove 11 is provided on the inner side of the annular shell 8, which is perpendicular to the first connecting member 1. The fixed annular seat 10 is located on one side of the movable groove 11. The annular shell 8 is rotatably sleeved on the fixed annular seat 10. Multiple sets of sealing plates 9 are provided in the movable groove 11 between the fixed annular seat 10 and the inner wall of the annular shell 8. The multiple sets of sealing plates 9 are arranged in a ring array and are slidably installed in the movable groove 11. Multiple sets of arc-shaped grooves 12 are provided on the inner wall of the annular shell 8 near the sealing plates 9. Each set of sealing plates 9 is provided with a slider 13 corresponding to the arc-shaped groove 12. The slider 13 moves within the arc-shaped groove 12 and is limited in movement. The inner side of the sealing plate 9 is fitted and sealed with the sealing ring 6. By rotating the annular shell 8 externally, the multiple sets of sealing plates 9 can be clamped with varying diameters simultaneously, thereby achieving a sealed connection with the sealing ring 6.
[0021] Each sealing plate 9 has an inner end with a receiving groove 14, and a sealing strip 15 is laid in the receiving groove 14. The sealing strip 15 is in close contact with the sealing ring 6, and the two can achieve a better waterproof effect.
[0022] A sealing groove 16 is provided on the surface of the connection of the second connector 2, and the sealing ring 6 is filled in the sealing groove 16.
[0023] The annular outer shell 8 has equidistant grooves 17 on its side wall and the outer wall near the first connector 1.
[0024] One end of the fixing buckle 7 is fixedly connected to the second connector 2 via the connecting seat 18, and the other end of the fixing buckle 7 extends to the outer wall of the annular shell 8 near the first connector 1.
[0025] The other end of the fixing buckle 7 is provided with a limiting block 19 on the outer wall of the annular shell 8 near the first connector 1, and the inner side of the limiting block 19 is pressed against the outer wall of the annular shell 8.
[0026] The inner side of the limiting block 19 and the inner side of the fixing buckle 7 are both provided with tooth grooves 17 that mesh with the tooth grooves 17 on the side wall and outer wall of the annular shell 8. The meshing tooth grooves 17 can achieve a more stable connection structure.
[0027] The first connector 1 also has a T-groove 20 at the connection end with the second connector 2. The T-groove 20 is filled with a lip seal 21, which can achieve a higher waterproof rating.
[0028] This invention achieves limited rotation of multiple sealing plates by rotating the annular outer shell of the sliding sealing assembly and through the relative movement of the internal arc groove and the slider. This allows for sealing and clamping with the sealing ring of the second connector, enhancing the connection strength and improving the sealing and waterproofing effect. Subsequently, the connection is further strengthened by fixing buckles, and the subsequent annular outer shell is stopped by the meshing of the toothed grooves, resulting in a longer sealing time and a better sealing effect.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.
Claims
1. A waterproof low-voltage wire harness connector, characterized in that, The device includes a first connector and a second connector. The first connector has a male terminal block at its connection point, and the second connector has a connection groove at its connection point. The connection groove contains a female terminal block that is compatible with the male terminal block. The first connector has a sliding sealing component at the outer edge of its connection point, and the second connector has a sealing ring at the outer periphery corresponding to the sliding sealing component. The second connector has two sets of fixing buckles symmetrically arranged on its upper and lower sides, and the two sets of fixing buckles are locked and limited at one end of the sliding sealing component.
2. The waterproof low-voltage wire harness connector according to claim 1, characterized in that: The sliding sealing assembly includes an annular outer shell and sealing plates. A fixed annular seat is provided on the outer edge of the first connector. A movable groove is provided on the inner side of the annular outer shell, which is perpendicular to the first connector. The fixed annular seat is located on one side of the movable groove. The annular outer shell is rotatably sleeved on the fixed annular seat. Multiple sets of sealing plates are provided between the fixed annular seat and the inner wall of the annular outer shell in the movable groove. The multiple sets of sealing plates are slidably installed in the movable groove in a ring array. Multiple sets of arc-shaped grooves are provided on the inner wall of the annular outer shell near the sealing plates. Each set of sealing plates is provided with a slider corresponding to the arc-shaped groove. The slider moves within the arc-shaped groove and is closed by fitting the inner side of the sealing plate with the sealing ring.
3. A waterproof low-voltage wire harness connector according to claim 2, characterized in that: Each set of sealing plates has a receiving groove on one end of its inner side, and a sealing strip is laid in the receiving groove. The sealing strip is in close contact with the sealing ring.
4. A waterproof low-voltage wire harness connector according to claim 1, characterized in that: A sealing groove is provided on the surface of the connection of the second connector, and the sealing ring is filled in the sealing groove.
5. A waterproof low-voltage wire harness connector according to claim 2, characterized in that: The annular outer shell has equidistant grooves on its sidewalls and the outer wall near the first connector.
6. A waterproof low-voltage wire harness connector according to claim 5, characterized in that: One end of the fixing buckle is fixedly connected to the second connector via a connecting seat, and the other end of the fixing buckle extends to the outer wall of the annular shell near the first connector.
7. A waterproof low-voltage wire harness connector according to claim 6, characterized in that: The other end of the fixing buckle is provided with a limiting block on the outer wall of the annular shell near the first connector, and the inner side of the limiting block is pressed against the outer wall of the annular shell.
8. A waterproof low-voltage wire harness connector according to claim 7, characterized in that: Both the inner side of the limiting block and the inner side of the fixing buckle are provided with tooth grooves that mesh with the tooth grooves on the side wall and outer wall of the annular shell.
9. A waterproof low-voltage wire harness connector according to claim 1, characterized in that: The first connector also has a T-shaped groove at the connection end with the second connector, and the T-shaped groove is filled with a lip seal.