A waterproof automobile wire harness connector
By designing the insertion and sealing structure of the waterproof automotive wiring harness connector, the waterproofing problem at the wiring harness connection point was solved, achieving higher sealing performance and reliable power connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HUI AN TENG ELECTRONICS CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
AI Technical Summary
Existing automotive wiring harness connections have poor waterproofing, making them prone to rainwater penetration and short circuits, posing a safety hazard.
A waterproof automotive wiring harness connector was designed, which achieves snap-locking and threaded connection through a combination of plug-in connector and sealing connector, thereby enhancing the sealing performance of the connection.
It improves the waterproof effect at the wire harness connection, prevents water from entering the connector, and ensures the reliability and safety of the power connection.
Smart Images

Figure CN224400758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness connector technology, and in particular to a waterproof automotive wire harness connector. Background Technology
[0002] Automotive wiring harnesses are the core of a vehicle's electrical network; without them, there is no automotive electrical system. A wiring harness is an assembly consisting of copper-plated contact terminals (connectors) crimped to wires and cables, then covered with a molded insulator or an outer metal shell, and bundled together to form a connected circuit. The wiring harness industry chain includes wires and cables, connectors, processing equipment, wiring harness manufacturing, and downstream application industries. Wiring harnesses have a wide range of applications, including automobiles, home appliances, computer and communication equipment, and various electronic instruments. Body wiring harnesses connect the entire vehicle body. Wiring harness connectors, as crucial components of automotive wiring harnesses, connect the various parts of the harness. Currently, automotive wiring harnesses are typically connected using a direct connection method. This method results in poor waterproofing at the connection points, making them susceptible to rainwater penetration and short circuits, posing a safety hazard. Therefore, we have redesigned a waterproof automotive wiring harness connector. Utility Model Content
[0003] The purpose of this invention is to provide a waterproof automotive wiring harness connector.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a waterproof automotive wiring harness connector, including a first plug connector, a first power connection plate fixedly connected to the top of one side of the back of the first plug connector, a first connection harness fixedly connected to the top of one side of the first power connection plate, a connection base fixedly connected to one side of the first plug connector, a sliding limiting post fixedly connected to the top of one side of the connection base, a power plug fixedly connected to the top of one side of the front of the first plug connector, a second plug connector detachably installed on one side of the first plug connector, a snap-fit groove formed on the inner wall of one side of the second plug connector, a limiting groove formed at the bottom of one side of the snap-fit groove, a power connection groove formed on the inner bottom surface of the second plug connector, a second power connection plate fixedly connected to the back of one side of the second plug connector, and a second connection harness fixedly connected to the top of one side of the second power connection plate.
[0005] Preferably, the positions of the power connector and the power connection slot are one-to-one, the connection relationship between the power connector and the power connection slot is a pin connection, the connection relationship between the connecting base and the snap-fit slot is a movable snap-fit, the connection relationship between the limiting slot and the sliding limiting post is a sliding pin connection, the positions of the sliding limiting post and the connecting base are one-to-one, and the number of the sliding limiting posts is several, which are circumferentially distributed on one side surface of the first connector.
[0006] Preferably, a sealing connecting plate is detachably installed on one side surface of the first plug-in connector, and a limiting sleeve plate is fixedly connected to the back side of one side of the sealing connecting plate.
[0007] Preferably, a first connecting base is fixedly connected to one side of the top surface of the second plug connector, a first locking connecting plate is fixedly connected to one side of the top surface of the first connecting base, a first connecting thread groove is opened inside one side of the first locking connecting plate, a locking thread rod is detachably installed inside the first connecting thread groove, and a limit nut is fixedly connected to one side of the top surface of the locking thread rod.
[0008] Preferably, a second connecting base is fixedly connected to one side surface of the sealing connecting plate, and a second locking connecting plate is fixedly connected to one top side of the second connecting base. The second locking connecting plate has a second connecting thread groove inside.
[0009] Preferably, the first connecting thread groove penetrates the interior of the first locking connecting disc, the locking thread rod and the first connecting thread groove are connected by a thread, the second connecting thread groove and the locking thread rod are connected by a thread, the second locking connecting disc and the first locking connecting disc are in one-to-one correspondence, the number of the first locking connecting discs is several, the several first locking connecting discs are circumferentially distributed on one side surface of the second plug-in connector, the sealing connecting disc and the second plug-in connector have the same cross-sectional diameter, and the sealing connecting disc and the first plug-in connector are connected by a movable sleeve.
[0010] Compared with related technologies, the waterproof automotive wiring harness connector provided by this utility model has the following advantages:
[0011] 1. This utility model provides a waterproof automotive wiring harness connector. By setting a first plug-in connector and a second plug-in connector for plugging, the connecting base directly snaps into the inside of the snap-in groove. At this time, the sliding limit post will automatically align with the inside of the limit groove, realizing the snap-in locking operation between the first plug-in connector and the second plug-in connector. At this time, the power connector is directly plugged into the inside of the power connection groove to complete the power connection and transmission operation. The back of the first plug-in connector is provided with a first power connection plate and a first connection harness. The top of the back of the second plug-in connector is provided with a second power connection plate and a second connection harness, realizing the connection of the wiring harnesses on both sides.
[0012] 2. This utility model provides a waterproof automotive wiring harness connector. A sealing connecting plate is sleeved on the surface of the first plug connector. After the first and second plug connectors are connected, the sealing connecting plate and the second plug connector are aligned. At this time, the second locking connecting plate and the first locking connecting plate are in one-to-one correspondence to achieve position alignment. A locking threaded rod extends into the interior of the first and second connecting threaded grooves. The threaded connection between the locking threaded rod and the second locking connecting plate achieves a fixed connection between the sealing connecting plate and the second plug connector. The sealing operation of the sealing connecting plate on the second plug connector can prevent water from entering the interior of the second plug connector, improve the sealing performance of the connection between the second and first plug connectors, and ensure the waterproof effect of the connection between the power connector and the power connection groove. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the overall disassembled side view of the device of this utility model;
[0015] Figure 3 This is a schematic diagram of the connection structure of the sealing connecting disc and the second plug-in connector of this utility model;
[0016] Figure 4 This is a schematic diagram of the structure of the plug connector of this utility model after connection.
[0017] The following are the labeling elements in the diagram: 1. First plug-in connector; 2. First power connection plate; 3. First connecting harness; 4. Connecting base; 5. Sliding limit post; 6. Power plug; 7. Second plug-in connector; 8. Clip groove; 9. Limit groove; 10. Power connection groove; 11. Second power connection plate; 12. Second connecting harness; 13. Sealing connection plate; 14. Limiting sleeve plate; 15. First connecting base; 16. First locking connection plate; 17. First connecting threaded groove; 18. Locking threaded rod; 19. Limiting nut; 20. Second connecting base; 21. Second locking connection plate; 22. Second connecting threaded groove. Detailed Implementation
[0018] Example 1:
[0019] Please see Figure 1-4 This utility model provides a technical solution: a waterproof automotive wiring harness connector, including a first plug connector 1, a first power connection plate 2 fixedly connected to the top of one side of the back of the first plug connector 1, a first connecting wire harness 3 fixedly connected to the top of one side of the first power connection plate 2, a connecting base 4 fixedly connected to one side of the surface of the first plug connector 1, a sliding limiting post 5 fixedly connected to the top surface of one side of the connecting base 4, a power plug connector 6 fixedly connected to the top of one side of the first plug connector 1, a second plug connector 7 detachably installed on one side of the first plug connector 1, a snap-fit groove 8 formed on the inner wall of one side of the second plug connector 7, and a limiting groove 9 formed at the bottom end of one side of the snap-fit groove 8. The inner bottom surface of the plug-in connector 7 is provided with an electrical connection groove 10. A second electrical connection plate 11 is fixedly connected to the back side of one side of the second plug-in connector 7. A second connection harness 12 is fixedly connected to the top side of one side of the second electrical connection plate 11. The positions of the electrical plug 6 and the electrical connection groove 10 are one-to-one. The connection relationship between the electrical plug 6 and the electrical connection groove 10 is a pin connection. The connection relationship between the connecting base 4 and the snap-fit groove 8 is a movable snap-fit. The connection relationship between the limiting groove 9 and the sliding limiting post 5 is a sliding pin connection. The positions of the sliding limiting post 5 and the connecting base 4 are one-to-one. There are several sliding limiting posts 5, which are distributed in a circle on one side surface of the first plug-in connector 1.
[0020] In the implementation scheme, by setting up a connection between the first plug-in connector 1 and the second plug-in connector 7, the connecting base 4 is directly snapped into the inside of the snap-in groove 8. At this time, the sliding limit post 5 will automatically align with the inside of the limit groove 9, realizing the snap-in locking operation between the first plug-in connector 1 and the second plug-in connector 7. At this time, the power connector 6 is directly plugged into the inside of the power connection groove 10 to complete the power connection and transmission operation. The back of the first plug-in connector 1 is provided with a first power connection plate 2 and a first connection harness 3. The top of the back of the second plug-in connector 7 is provided with a second power connection plate 11 and a second connection harness 12 to realize the connection of the harnesses on both sides.
[0021] Example 2:
[0022] Please see Figure 1-4 This utility model provides a technical solution: a waterproof automotive wiring harness connector, including a first plug connector 1 with a detachable sealing connecting plate 13 on one side surface, a limit sleeve plate 14 fixedly connected to the back side of one side of the sealing connecting plate 13, a second plug connector 7 with a first connecting base 15 fixedly connected to the top side surface of one side, a first locking connecting plate 16 fixedly connected to the top side surface of one side of the first connecting base 15, a first connecting thread groove 17 formed inside one side of the first locking connecting plate 16, a locking thread rod 18 detachably installed inside the first connecting thread groove 17, a limit nut 19 fixedly connected to the top side surface of one side of the locking thread rod 18, and a second connecting base 20 fixedly connected to one side surface of the sealing connecting plate 13. A second locking connecting plate 21 is fixedly connected to the top of one side of the 0. The second locking connecting plate 21 has a second connecting thread groove 22 inside. The first connecting thread groove 17 penetrates the interior of the first locking connecting plate 16. The locking thread rod 18 and the first connecting thread groove 17 are connected by a thread. The second connecting thread groove 22 and the locking thread rod 18 are also connected by a thread. The positions of the second locking connecting plate 21 and the first locking connecting plate 16 correspond one-to-one. There are several first locking connecting plates 16. The several first locking connecting plates 16 are distributed in a circle on one side surface of the second plug-in connector 7. The sealing connecting plate 13 and the second plug-in connector 7 have the same cross-sectional diameter. The sealing connecting plate 13 and the first plug-in connector 1 are connected by a movable sleeve.
[0023] In the implementation scheme, a sealing connecting plate 13 is sleeved and installed on the surface of the first plug-in connector 1. After the first plug-in connector 1 and the second plug-in connector 7 are connected, the second locking connecting plate 21 and the first locking connecting plate 16 are aligned through the alignment operation between the sealing connecting plate 13 and the second plug-in connector 7. At this time, the positions of the second locking connecting plate 21 and the first locking connecting plate 16 correspond one-to-one, and the position alignment is achieved. The locking threaded rod 18 extends into the interior of the first connecting threaded groove 17 and the second connecting threaded groove 22. The threaded connection between the locking threaded rod 18 and the second locking connecting plate 21 is used to achieve a fixed connection between the sealing connecting plate 13 and the second plug-in connector 7. The sealing operation of the sealing connecting plate 13 on the second plug-in connector 7 can prevent water from entering the interior of the second plug-in connector 7, improve the sealing performance of the connection between the second plug-in connector 7 and the first plug-in connector 1, and ensure the waterproof effect of the connection between the power plug 6 and the power connection groove 10.
[0024] Working principle:
[0025] By setting the connection between the first plug connector 1 and the second plug connector 7, the connecting base 4 is directly snapped into the inside of the snap-fit groove 8. At this time, the sliding limit post 5 will automatically align with the inside of the limit groove 9, realizing the snap-fit locking operation between the first plug connector 1 and the second plug connector 7. At this time, the power plug 6 is directly plugged into the inside of the power connection groove 10 to complete the power connection and transmission operation. The back of the first plug connector 1 is provided with the first power connection plate 2 and the first connection harness 3. The top of the back of the second plug connector 7 is provided with the second power connection plate 11 and the second connection harness 12 to realize the connection of the harnesses on both sides.
[0026] A sealing connecting plate 13 is fitted onto the surface of the first plug-in connector 1. After the first plug-in connector 1 and the second plug-in connector 7 are connected, the second locking connecting plate 21 and the first locking connecting plate 16 are aligned through the alignment operation between the sealing connecting plate 13 and the second plug-in connector 7. At this time, the positions of the second locking connecting plate 21 and the first locking connecting plate 16 correspond one-to-one, and the position is aligned. The locking threaded rod 18 extends into the interior of the first connecting threaded groove 17 and the second connecting threaded groove 22. The threaded connection between the locking threaded rod 18 and the second locking connecting plate 21 is used to achieve a fixed connection between the sealing connecting plate 13 and the second plug-in connector 7. The sealing operation of the sealing connecting plate 13 on the second plug-in connector 7 can prevent water from entering the interior of the second plug-in connector 7, improve the sealing performance of the connection between the second plug-in connector 7 and the first plug-in connector 1, and ensure the waterproof effect of the connection between the power plug 6 and the power connection groove 10.
Claims
1. A waterproof automotive wiring harness connector, comprising a first plug connector (1), wherein a first power connection plate (2) is fixedly connected to the top of one side of the back of the first plug connector (1), characterized in that: A first connecting wire harness (3) is fixedly connected to one side top of the first power connection plate (2), a connecting base (4) is fixedly connected to one side surface of the first plug-in connector (1), a sliding limiting post (5) is fixedly connected to one side top surface of the connecting base (4), a power plug (6) is fixedly connected to one side top of the front of the first plug-in connector (1), a second plug-in connector (7) is detachably installed on one side of the first plug-in connector (1), a snap-fit groove (8) is provided on one side inner wall of the second plug-in connector (7), a limiting groove (9) is provided on one side bottom end of the snap-fit groove (8), a power connection groove (10) is provided on the inner bottom surface of the second plug-in connector (7), a second power connection plate (11) is fixedly connected to one side back of the second plug-in connector (7), and a second connecting wire harness (12) is fixedly connected to one side top of the second power connection plate (11).
2. The waterproof automotive wiring harness connector according to claim 1, characterized in that, The positions of the power connector (6) and the power connection slot (10) are one-to-one. The connection relationship between the power connector (6) and the power connection slot (10) is a pin connection. The connection relationship between the connecting base (4) and the snap-fit slot (8) is a movable snap-fit. The connection relationship between the limiting slot (9) and the sliding limiting post (5) is a sliding pin connection. The positions of the sliding limiting post (5) and the connecting base (4) are one-to-one. The number of sliding limiting posts (5) is several. The several sliding limiting posts (5) are circumferentially distributed on one side surface of the first plug connector (1).
3. A waterproof automotive wiring harness connector according to claim 1, characterized in that, A sealing connection plate (13) is detachably installed on one side surface of the first plug connector (1), and a limiting sleeve plate (14) is fixedly connected to the back side of one side of the sealing connection plate (13).
4. A waterproof automotive wiring harness connector according to claim 3, characterized in that, A first connecting base (15) is fixedly connected to one side of the top surface of the second plug connector (7). A first locking connecting plate (16) is fixedly connected to one side of the top surface of the first connecting base (15). A first connecting thread groove (17) is opened inside one side of the first locking connecting plate (16). A locking thread rod (18) is detachably installed inside the first connecting thread groove (17). A limit nut (19) is fixedly connected to one side of the top surface of the locking thread rod (18).
5. A waterproof automotive wiring harness connector according to claim 4, characterized in that, A second connecting base (20) is fixedly connected to one side surface of the sealing connecting plate (13), and a second locking connecting plate (21) is fixedly connected to one side top of the second connecting base (20). A second connecting thread groove (22) is provided inside the second locking connecting plate (21).
6. A waterproof automotive wiring harness connector according to claim 5, characterized in that, The first connecting thread groove (17) penetrates the interior of the first locking connecting disc (16). The connection between the locking thread rod (18) and the first connecting thread groove (17) is a threaded connection. The connection between the second connecting thread groove (22) and the locking thread rod (18) is a threaded connection. The positions of the second locking connecting disc (21) and the first locking connecting disc (16) correspond one-to-one. There are several first locking connecting discs (16). Several first locking connecting discs (16) are circumferentially distributed on one side surface of the second plug-in connector (7). The sealing connecting disc (13) and the second plug-in connector (7) have the same cross-sectional diameter. The connection between the sealing connecting disc (13) and the first plug-in connector (1) is a movable sleeve.