Wire harness connector with waterproof structure

By introducing multiple sealing gaskets and absorbent cotton design into the wire harness connector, the problem of simple waterproof structure in existing wire harness connectors is solved, achieving higher waterproof performance and service life.

CN224204457UActive Publication Date: 2026-05-05NANTONG XIECHENG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG XIECHENG ELECTRONICS CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing wire harness connectors have simple waterproof structures, which allow moisture to easily enter, leading to short circuits and corrosion at the threads, resulting in a short service life. Furthermore, the waterproof structure fails when the connection becomes loose.

Method used

It adopts a multi-seal gasket structure and water-absorbing cotton design, including a first seal gasket, a second seal gasket, a third seal gasket and water-absorbing cotton, which, together with the guide plate, guides and absorbs moisture. It is protected by the threaded connection of the rotating ring and the connecting pipe, which improves the sealing and waterproof effect.

Benefits of technology

It effectively improves the waterproof performance of wire harness connectors, protects the threads from moisture corrosion, extends service life, and can still work normally even when the connection is loose, without the waterproof structure failing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of wire harness connectors, in particular to a wire harness connector with a waterproof structure, which comprises a male terminal main body and a female terminal main body, the female terminal main body is arranged on a female terminal outer protective shell, and a support ring is arranged on the female terminal outer protective shell; absorbent cotton and a ventilation plate are arranged on the connecting pipe; a second ring groove is formed in the male terminal outer protective shell; the wire harness connector has the beneficial effects that the first sealing gasket, the second sealing gasket and the third sealing gasket are used for multiple protection, the guide plate is matched to guide water vapor so that the water vapor can be absorbed by the absorbent cotton, the waterproof effect of the wire harness connector is effectively improved, the second sealing gasket, the first sealing gasket and the fourth sealing gasket are used for sealing protection, the threaded connection position is protected, and the service life of the wire harness connector is prolonged. Even if the connecting part is loosened, the guide plate can guide the water vapor to enable the water vapor to be absorbed by the absorbent cotton, the waterproof structure can still work normally, the waterproof structure does not lose efficacy, and the service life of the wire harness connector is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of wire harness connectors, specifically a wire harness connector with a waterproof structure. Background Technology

[0002] Wire harness connectors are key components used to achieve electrical connections and are widely used in automotive, electronics, and communications industries. They integrate multiple wires into a bundle, providing a stable and reliable signal and power transmission path. Wire harness connectors are characterized by their compact structure, low contact resistance, and strong anti-interference capabilities, while also supporting quick insertion and removal for easy installation and maintenance.

[0003] In the prior art, wire harness connectors usually need to be equipped with a waterproof structure to prevent moisture from entering the wire harness connector and causing a short circuit.

[0004] However, the existing waterproof structure of wire harness connectors is relatively simple, and moisture can easily enter the wire harness connector, posing certain safety hazards. In addition, the screw connection on the wire harness connector is exposed, and its threads are easily corroded, which can lead to loosening of the wire harness connector connection. This can cause the gap of the sealing gasket inside the device to increase, resulting in failure of the waterproof structure. Wire harness connectors have a short service life and low practicality. Utility Model Content

[0005] The purpose of this invention is to provide a wire harness connector with a waterproof structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wire harness connector with a waterproof structure, comprising: a male terminal body and a female terminal body, the female terminal body being disposed on the outer protective shell of the female terminal, and a support ring being disposed on the outer protective shell of the female terminal, the support ring being connected to a guide plate;

[0007] The connecting pipe is equipped with absorbent cotton, a vent plate, a second sealing gasket, and a rotating block. The rotating block has an installation groove, and the first sealing gasket is inserted into the installation groove.

[0008] The male terminal has an outer protective shell, and a second annular groove is provided inside the outer protective shell. A fourth sealing gasket and a rotating ring are provided inside the second annular groove.

[0009] Preferably, the fourth sealing gasket has an annular plate structure and is fixedly connected to the rotating ring. The rotating ring has an annular plate structure and can rotate along the second annular groove opened on the outer protective shell of the male terminal.

[0010] Preferably, the rotating ring is fixedly connected to the connecting pipe, the connecting pipe has a tubular structure, one end of the connecting pipe is threaded, the connecting pipe can be threaded to the threaded part of the outer protective shell of the female terminal, and the female terminal body is fixedly installed on the outer protective shell of the female terminal.

[0011] Preferably, a support ring is fixedly connected to the outer protective shell of the female terminal. The support ring has an annular plate structure, and a guide plate is fixedly connected to the support ring. The support ring is in contact with the third sealing gasket, which also has an annular plate structure and is fixedly connected to the connecting pipe.

[0012] Preferably, a rotating block is fixedly connected to the connecting pipe, and an installation groove is provided on the rotating block. The installation groove has an annular groove structure, and a first sealing gasket and an installation block can be inserted into the installation groove. The first sealing gasket and the installation block are fixedly connected, and both the first sealing gasket and the installation block have an annular plate structure. The installation block is fixedly connected to the outer protective shell of the female terminal.

[0013] Preferably, the connecting pipe has a first annular groove, a second sealing gasket is inserted in the first annular groove, the second sealing gasket is fixedly connected to the connecting pipe, and a vent plate is fixedly connected inside the connecting pipe. The vent plate has a circular annular plate structure, and absorbent cotton is placed between the two vent plates.

[0014] Preferably, a male terminal body is fixedly installed on the outer protective shell of the male terminal, and a second annular groove is formed on the outer protective shell of the male terminal, the second annular groove having an annular groove structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The waterproof wire harness connector proposed in this utility model utilizes multiple layers of protection—a first, second, and third sealing gasket—along with a guide plate to direct moisture, which is then absorbed by absorbent cotton. This multi-layered protection effectively enhances the waterproof performance of the wire harness connector. The threaded connection of the connecting pipe is secured within the outer protective shell of the female terminal and sealed by the second, first, and fourth sealing gaskets. This protects the threads on both the connecting pipe and the outer protective shell of the female terminal from moisture corrosion, extending the device's lifespan. Even if the connection becomes loose, the guide plate continues to direct moisture, which is then absorbed by the absorbent cotton. As a waterproof structure, it can still function normally, ensuring its continued effectiveness and extending the lifespan of the wire harness connector. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the device structure of this utility model;

[0018] Figure 2 This is a partial cross-sectional view of the device of this utility model;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4This is a schematic cross-sectional view of part of the structure of the device of this utility model;

[0021] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0022] Figure 6 for Figure 4 Enlarged structural diagram at point B;

[0023] Figure 7 This is a partial structural diagram of the device of this utility model.

[0024] In the diagram: 1. Male terminal outer protective shell; 2. Female terminal outer protective shell; 3. Male terminal body; 4. Female terminal body; 5. Connecting pipe; 6. Rotating block; 7. Mounting groove; 8. Mounting block; 9. First sealing gasket;

[0025] 10. First annular groove; 11. Second sealing gasket; 12. Vent plate; 13. Absorbent cotton; 14. Third sealing gasket; 15. Support ring; 16. Guide plate; 17. Rotating ring; 18. Fourth sealing gasket; 19. Second annular groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1

[0028] Please see Figures 1-7 This utility model provides a technical solution: a wire harness connector with a waterproof structure, comprising: a male terminal body 3 and a female terminal body 4, the female terminal body 4 being disposed on a female terminal outer protective shell 2, the female terminal outer protective shell 2 being provided with a support ring 15, the support ring 15 being connected to a guide plate 16; a connecting pipe 5, the connecting pipe 5 being provided with a water-absorbing cotton 13, a vent plate 12, a second sealing gasket 11 and a rotating block 6, the rotating block 6 being provided with an installation groove 7, the installation groove 7 being fitted with a first sealing gasket 9; and a male terminal outer protective shell 1, the male terminal outer protective shell 1 being provided with a second annular groove 19, the second annular groove 19 being provided with a fourth sealing gasket 18 and a rotating ring 17;

[0029] In practical use, protecting the screw connections on the device effectively improves its reliability.

[0030] Example 2

[0031] Based on Embodiment 1, a rotating ring 17 is provided to improve the use effect of the device. The rotating ring 17 is fixedly connected to the connecting pipe 5. The connecting pipe 5 has a tubular structure and one end of the connecting pipe 5 is threaded. The connecting pipe 5 can be threaded to the threaded part of the outer protective shell 2 of the female terminal. The female terminal body 4 is fixedly installed on the outer protective shell 2 of the female terminal. The male terminal body 3 is aligned with the female terminal body 4 so that the guide pin part on the male terminal body 3 is inserted into the guide sleeve on the female terminal body 4. At this time, one end of the connecting pipe 5 is inserted into the outer protective shell 2 of the female terminal.

[0032] The male terminal body 3 is fixedly installed on the male terminal outer protective shell 1. The male terminal outer protective shell 1 has a second annular groove 19. The second annular groove 19 has an annular groove structure. When the operator rotates the rotating block 6, the rotating ring 17 rotates along the second annular groove 19, so that the connecting pipe 5 is screwed to the female terminal outer protective shell 2, and the installation is completed.

[0033] A rotating block 6 is fixedly connected to the connecting pipe 5. An installation groove 7 is provided on the rotating block 6. The installation groove 7 has an annular groove structure. The first sealing gasket 9 and the installation block 8 can be inserted into the installation groove 7. The first sealing gasket 9 and the installation block 8 are fixedly connected. Both the first sealing gasket 9 and the installation block 8 have annular plate structure. The installation block 8 is fixedly connected to the outer protective shell 2 of the female terminal. At this time, the installation block 8 fixedly connected to the outer protective shell 2 of the female terminal and the first sealing gasket 9 fixedly connected to the installation block 8 are inserted into the installation groove 7 opened on the rotating block 6.

[0034] The fourth sealing gasket 18 has an annular plate structure and is fixedly connected to the rotating ring 17. The rotating ring 17 has an annular plate structure and can rotate along the second annular groove 19 opened on the outer protective shell 1 of the male terminal. The fourth sealing gasket 18, together with the first sealing gasket 9, can improve the sealing performance of the connection of the device, protect the threads on the connecting pipe 5 and the threads on the outer protective shell 2 of the female terminal, making them less susceptible to water vapor corrosion, improving the service life of the device, and improving the overall reliability of the device. Compared with wire harness connectors without thread protection, it has higher reliability and improves the performance of the wire harness connector.

[0035] Example 3

[0036] Based on Embodiment 2, in order to improve the waterproof effect of the device, the female terminal connecting pipe 5 is provided with a first annular groove 10. A second sealing gasket 11 is inserted in the first annular groove 10 and is fixedly connected to the connecting pipe 5. A vent plate 12 is fixedly connected in the connecting pipe 5. The vent plate 12 has a circular annular plate structure. A water-absorbing cotton 13 is provided between the two vent plates 12. The first annular groove 10 has a circular groove structure, and the second sealing gasket 11 has a circular plate structure. By using the second sealing gasket 11 in the first annular groove 10 as a second waterproof structure, the sealing of the connection can be further improved, and the waterproof effect of the device can be improved.

[0037] A support ring 15 is fixedly connected to the outer protective shell 2 of the female terminal. The support ring 15 has an annular plate structure. A guide plate 16 is fixedly connected to the support ring 15. The support ring 15 contacts the third sealing gasket 14. The third sealing gasket 14 has an annular plate structure and is fixedly connected to the connecting pipe 5. The guide plate 16 has the following shape. Figure 7 The ventilation plate 12 has several holes. The third sealing gasket 14 serves as a third layer of waterproofing, which can further improve the sealing of the connection and enhance the waterproofing effect of the device. Finally, the guide plate 16 and the support ring 15 can guide water vapor and water to flow to the ventilation plate 12, where they are absorbed by the absorbent cotton 13. Through multiple layers of protection, the waterproofing effect of the wire harness connector is effectively improved.

[0038] In actual use, the multiple protections of the first sealing gasket 9, the second sealing gasket 11, and the third sealing gasket 14, combined with the guide plate 16 to guide moisture, allow the moisture to be absorbed by the absorbent cotton 13. Through these multiple protections, the waterproof effect of the wire harness connector is effectively improved. The threaded part of the connecting tube 5 is locked inside the outer protective shell 2 of the female terminal and is sealed and protected by the second sealing gasket 11, the first sealing gasket 9, and the fourth sealing gasket 18. This protects the threads on the connecting tube 5 and the threads on the outer protective shell 2 of the female terminal, making them less susceptible to moisture corrosion and improving the service life of the device. Even if the connection is loose, the guide plate 16 can still guide the moisture, and the absorbent cotton 13 can absorb the moisture. As a waterproof structure, it can still work normally, and the waterproof structure has not failed, thus improving the service life of the wire harness connector.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire harness connector with a waterproof structure, comprising: The male terminal body (3) and the female terminal body (4) are provided on the female terminal outer protective shell (2). The female terminal body (4) is provided on the female terminal outer protective shell (2). The female terminal body (4) is characterized in that a support ring (15) is provided on the female terminal outer protective shell (2). The support ring (15) is connected to the guide plate (16). The connecting pipe (5) is provided with absorbent cotton (13), vent plate (12), second sealing gasket (11) and rotating block (6). The rotating block (6) is provided with mounting groove (7) and the first sealing gasket (9) is inserted in the mounting groove (7). The male terminal outer protective shell (1) has a second annular groove (19) inside, and a fourth sealing gasket (18) and a rotating ring (17) are provided in the second annular groove (19).

2. A wire harness connector with a waterproof structure according to claim 1, characterized in that: The fourth sealing gasket (18) has an annular plate structure. The fourth sealing gasket (18) is fixedly connected to the rotating ring (17). The rotating ring (17) has an annular plate structure and can rotate along the second annular groove (19) opened on the outer protective shell (1) of the male terminal.

3. A wire harness connector with a waterproof structure according to claim 1, characterized in that: The rotating ring (17) is fixedly connected to the connecting pipe (5). The connecting pipe (5) has a tubular structure and one end of the connecting pipe (5) is threaded. The connecting pipe (5) can be threaded to the threaded part of the outer protective shell (2) of the female terminal. The female terminal body (4) is fixedly installed on the outer protective shell (2) of the female terminal.

4. A wire harness connector with a waterproof structure according to claim 1, characterized in that: A support ring (15) is fixedly connected to the outer protective shell (2) of the female terminal. The support ring (15) has an annular plate structure. A guide plate (16) is fixedly connected to the support ring (15). The support ring (15) is in contact with the third sealing gasket (14). The third sealing gasket (14) has an annular plate structure. The third sealing gasket (14) is fixedly connected to the connecting pipe (5).

5. A wire harness connector with a waterproof structure according to claim 1, characterized in that: A rotating block (6) is fixedly connected to the connecting pipe (5). An installation groove (7) is provided on the rotating block (6). The installation groove (7) has an annular groove structure. The first sealing gasket (9) and the installation block (8) can be inserted into the installation groove (7). The first sealing gasket (9) and the installation block (8) are fixedly connected. Both the first sealing gasket (9) and the installation block (8) have an annular plate structure. The installation block (8) is fixedly connected to the outer protective shell (2) of the female terminal.

6. A wire harness connector with a waterproof structure according to claim 1, characterized in that: The connecting pipe (5) has a first annular groove (10), and a second sealing gasket (11) is inserted in the first annular groove (10). The second sealing gasket (11) is fixedly connected to the connecting pipe (5). A vent plate (12) is fixedly connected inside the connecting pipe (5). The vent plate (12) has a circular annular plate structure, and absorbent cotton (13) is placed between the two vent plates (12).

7. A wire harness connector with a waterproof structure according to claim 2, characterized in that: The male terminal body (3) is fixedly installed on the outer protective shell (1) of the male terminal. A second annular groove (19) is provided on the outer protective shell (1) of the male terminal. The second annular groove (19) has an annular groove structure.