Bonding-wire-free board-to-board waterproof connector

By designing a sealing structure for the female and male housings in the solderless wire-to-board connector, combined with a sealing gasket and cover plate, the problem of insufficient sealing in humid environments is solved, achieving efficient waterproof performance and stable connection.

CN224264340UActive Publication Date: 2026-05-19SHENZHEN CHANGJIANG CONNECTOR CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN CHANGJIANG CONNECTOR CO LTD
Filing Date
2025-04-27
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing solderless wire-to-board connectors have insufficient sealing performance in humid or watery environments, leading to connection failure or short circuits.

Method used

The design employs a female and male housing, combined with first and second sealing gaskets, cover plates, connectors, and fastening screws to achieve a sealed and stable connection. Quick positioning is achieved through the cooperation of the insert rod and torsion spring, and the sealing gaskets and cover plates enhance the sealing performance.

Benefits of technology

The connector's waterproof performance has been improved, preventing moisture from entering and ensuring the stability and reliability of the connection, as well as preventing wire harness breakage.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224264340U_ABST
    Figure CN224264340U_ABST
Patent Text Reader

Abstract

The utility model discloses a bonding-wire-free board-to-board waterproof connector, and belongs to the field of electrical connection devices. The utility model relates to a waterproof connector without bonding wire to board, which comprises a female rubber shell and a male rubber shell, and further comprises a first sealing gasket fixedly connected to the female rubber shell or the male rubber shell, and a second sealing gasket fixedly connected to the male rubber shell, the sealing frame is fixedly connected in the female rubber shell and the male rubber shell, a cover plate is fixedly installed on the sealing frame, a second sealing gasket is fixedly connected to the side, close to the sealing frame, of the cover plate, and the side, away from the cover plate, of the second sealing gasket makes contact with the sealing frame; the connecting piece is used for fixing the female rubber shell and the male rubber shell; according to the utility model, through the arrangement of the first sealing gasket, the joint of the female rubber shell and the male rubber shell can be sealed, and after the cover plate is opened to fix the wire harness, the second sealing gasket at the bottom of the cover plate is contacted with the sealing frame, so that the internal sealing performance of the female rubber shell and the male rubber shell can be improved, and the problems of wire harness open circuit and the like caused by dust and water vapor entering the interior are avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of electrical connection device technology, and in particular to a solderless wire-to-board waterproof connector. Background Technology

[0002] With the increasing global awareness of environmental protection and the growing acceptance of the concept of sustainable development, solderless connectors, as a green connection method, are gradually gaining market favor. Traditional soldering connection methods generate a large amount of waste and harmful gases, causing environmental pollution. Solderless connectors, on the other hand, avoid the soldering process, reducing the emission of harmful gases and the generation of waste, thus meeting environmental protection requirements. At the same time, solderless connectors are also reusable, improving resource utilization and further promoting sustainable development.

[0003] Existing solderless wire-pair connectors typically use plug-in or snap-fit ​​methods for connection. While these methods offer convenience, they may not create a sufficiently tight seal. In humid or watery environments, moisture may seep into the connector through gaps at the connection points, leading to connection failure or short circuits. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing solderless wire-to-board connectors often prioritize convenience and detachability while lacking waterproof performance, and to propose a solderless wire-to-board waterproof connector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A solderless wire-to-board waterproof connector includes a female housing and a male housing, and further includes: a first sealing gasket fixedly connected to the female housing or the male housing; a sealing frame fixedly connected inside the female housing and the male housing, wherein a cover plate is fixedly installed on the sealing frame, a second sealing gasket is fixedly connected to the side of the cover plate near the sealing frame, and the side of the second sealing gasket away from the cover plate contacts the sealing frame; and a connecting member for fixing the female housing and the male housing.

[0007] To achieve alignment and positioning of the female and male plastic shells, preferably, the connector includes: a positioning seat fixedly connected to the male plastic shell, with a rod rotatably connected inside the positioning seat, wherein a torsion spring is provided inside the positioning seat, and the two ends of the torsion spring are fixedly connected to the positioning seat and the rod respectively; and a limiting frame fixedly connected to the female plastic shell, with a forming groove on the limiting frame, and the rod cooperating with the forming groove.

[0008] To further limit the position of the insertion rod, the insertion rod extends through the outside of the positioning seat and is fixedly connected to a limiting block, the side of the limiting block closest to the positioning seat being in contact with the positioning seat.

[0009] To secure the wiring harness inside the female and male housings, preferably, the system further includes: a base fixedly installed inside the female and male housings, the base having a wire groove; and a fastening screw threaded into the female and male housings, the bottom of the fastening screw being rotatably connected to a retaining plate located at the upper end of the base.

[0010] To achieve solderless connection of the wire harness, preferably, both the female and male housings are fixedly installed with terminals, one of which is fixedly connected to a plug, and the other is fixedly connected to a socket that mates with the plug.

[0011] To allow space for adjusting the fastening screws, preferably, the sealing frame has a through hole, and the sealing frame is trapezoidal in shape.

[0012] Compared with the prior art, this utility model provides a solderless wire-to-board waterproof connector, which has the following advantages:

[0013] 1. This solderless wire-to-board waterproof connector, through the setting of connecting parts, when the female and male shells are inserted, the operator rotates the plug rod so that the protruding part of the free end of the plug rod is perpendicular to the forming groove. After the plug rod passes through the forming groove, under the reaction force of the torsion spring, the protruding part of the free end of the plug rod rotates, realizing the rapid positioning of the female and male shells, which can avoid the aging and wear of the traditional pressing and snapping method.

[0014] 2. This solderless wire-to-board waterproof connector uses a combination of a fastening screw and a retaining plate. Rotating the fastening screw causes the retaining plate to move downwards, which can fix the wire harness and thus improve the stability of the wire harness connection.

[0015] All parts not covered in this device are the same as or can be implemented using existing technology. This utility model can seal the connection between the female and male shells by setting a first sealing gasket. After the cover plate is opened and the wire harness is fixed, the second sealing gasket at the bottom of the cover plate contacts the sealing frame, which can improve the internal sealing performance of the female and male shells, thereby preventing dust and moisture from entering the interior and causing problems such as wire harness breakage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a solderless wire-to-board waterproof connector proposed in this utility model;

[0017] Figure 2 This is an exploded sectional view of the female housing, male housing, and cover plate of a solderless wire-to-board waterproof connector proposed in this utility model.

[0018] Figure 3This is a structurally exploded sectional view of the female and male housings of a solderless wire-to-board waterproof connector proposed in this utility model.

[0019] Figure 4 The top-view exploded view of the cover plate and sealing frame of the solderless wire-to-board waterproof connector proposed in this utility model;

[0020] Figure 5 This is an exploded sectional view of the connector of a solderless wire-to-board waterproof connector proposed in this utility model.

[0021] In the diagram: 1. Female housing; 2. Male housing; 3. Connector; 301. Positioning seat; 302. Insert rod; 303. Torsion spring; 304. Limiting frame; 305. Limiting block; 4. First sealing gasket; 5. Sealing frame; 6. Second sealing gasket; 7. Cover plate; 8. Base; 9. Fastening screw; 10. Clamping plate; 11. Terminal block; 12. Plug; 13. Socket. 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] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example:

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A solderless wire-to-board waterproof connector includes a female housing 1 and a male housing 2, and a first sealing gasket 4, which is fixedly connected to the female housing 1 and has an insertion hole; a sealing frame 5 is fixedly connected inside the female housing 1 and the male housing 2, wherein a cover plate 7 is fixedly installed on the sealing frame 5 by screws, a second sealing gasket 6 is fixedly connected to the side of the cover plate 7 near the sealing frame 5, and the side of the second sealing gasket 6 away from the cover plate 7 contacts the sealing frame 5; and a connecting piece 3 for fixing the female housing 1 and the male housing 2.

[0026] Specifically, by setting the first sealing gasket 4, the connection between the female shell 1 and the male shell 2 can be sealed. After the cover plate 7 is opened and the wire harness is fixed, the second sealing gasket 6 at the bottom of the cover plate 7 contacts the sealing frame 5, which can improve the internal sealing performance of the female shell 1 and the male shell 2, thereby preventing dust and moisture from entering their interior and causing problems such as wire harness breakage.

[0027] The connector 3 includes a positioning seat 301, which is fixedly connected to the male housing 2. A rod 302 is rotatably connected inside the positioning seat 301. A torsion spring 303 is provided inside the positioning seat 301, and the two ends of the torsion spring 303 are fixedly connected to the positioning seat 301 and the rod 302 respectively. A limiting frame 304 is fixedly connected to the female housing 1. A forming groove is provided on the limiting frame 304, and the rod 302 is used in conjunction with the forming groove.

[0028] Specifically, by setting the connector 3, when the female plastic shell 1 and the male plastic shell 2 are inserted, the operator rotates the insertion rod 302 so that the protruding part of the free end of the insertion rod 302 is perpendicular to the molding groove. After the insertion rod 302 passes through the molding groove, under the reaction force of the torsion spring 303, the protruding part of the free end of the insertion rod 302 rotates, thereby achieving rapid positioning of the female plastic shell 1 and the male plastic shell 2, which can avoid the aging and wear of the traditional pressing and snapping method.

[0029] One end of the insertion rod 302 extends through the outside of the positioning seat 301 and is fixedly connected to the limiting block 305. The side of the limiting block 305 closest to the positioning seat 301 is in contact with the positioning seat 301.

[0030] Specifically, by setting the limit block 305, the insertion rod 302 can be limited, thereby improving its rotational stability.

[0031] It also includes: two bases 8, which are fixedly installed in the female housing 1 and the male housing 2 respectively, and the bases 8 are provided with wire grooves; fastening screws 9 are threadedly connected in the female housing 1 and the male housing 2, and the bottom of the fastening screws 9 is rotatably connected to a retaining plate 10, which is located at the upper end of the bases 8.

[0032] Specifically, by setting the fastening screw 9 and the clamping plate 10 to cooperate, rotating the fastening screw 9 causes the clamping plate 10 to move downward, which can fix the wire harness and thus improve the stability of the wire harness connection.

[0033] Both the female housing 1 and the male housing 2 have terminal blocks 11 fixedly installed inside their cavities. One terminal block 11 is fixedly connected to a plug 12, and the other terminal block 11 is fixedly connected to a socket 13 that mates with the plug 12.

[0034] Specifically, by setting up terminals 11, plugs 12 and sockets 13, wire harnesses can be connected without soldering, thereby improving the installation efficiency of wire harnesses.

[0035] The sealing frame 5 has a through hole for the rotation of the pre-reserved fastening screw 9, and the sealing frame 5 is trapezoidal in shape.

[0036] Specifically, by setting through holes, the internal parts of the female housing 1 and the male housing 2 can be protected, while also reserving space for adjusting the fastening screw 9, thereby improving the practicality of the connector.

[0037] Working principle: During use, the operator opens the cover plate 7, then inserts the wire harness into the inner cavity of the female housing 1 and the male housing 2, connecting one end to the terminal 11. After the wire harness is inserted, the operator uses an external tool to turn the fastening screw 9. As the fastening screw 9 moves downward, it causes the clamping plate 10 to move downward, fixing the wire harness and improving its stability. After fixing, the operator uses screws to fix the cover plate 7 to the top of the sealing frame 5. Since the bottom of the cover plate 7 is fixedly connected to the second sealing gasket 6, the internal environment of the female housing 1 and the male housing 2 can be sealed. Then, the operator manually moves... The protruding parts of the free ends of the two insertion rods 302 are perpendicular to the molding groove. After the insertion rods 302 are inserted into the inner cavity of the molding groove, the positions of the plug 12 and the socket 13 are automatically aligned. Then, the female shell 1 and the male shell 2 are pushed to move, thus realizing the docking of the wire harness. After the female shell 1 and the male shell 2 are fully docked, the first sealing gasket 4 between them can improve the sealing performance of the joint. When the insertion rod 302 passes through the molding groove, under the reaction force of the torsion spring 303, the insertion rod 302 can be rotated to the side, so that the protruding part of its free end can be engaged with the surface of the limiting frame 304, thereby improving the assembly and disassembly efficiency of the female shell 1 and the male shell 2.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A solderless wire-to-board waterproof connector, comprising a female housing (1) and a male housing (2), characterized in that, Also includes: A first sealing gasket (4) is fixedly connected to the female rubber shell (1) or the male rubber shell (2); A sealing frame (5) is fixedly connected within the female rubber shell (1) and the male rubber shell (2). Among them, a cover plate (7) is fixedly installed on the sealing frame (5), and a second sealing gasket (6) is fixedly connected to the side of the cover plate (7) near the sealing frame (5). The side of the second sealing gasket (6) away from the cover plate (7) is in contact with the sealing frame (5). Connector (3) for fixing the female rubber shell (1) and the male rubber shell (2).

2. The solderless wire-to-board waterproof connector according to claim 1, characterized in that, The connector (3) includes: A positioning seat (301) is fixedly connected to the male plastic shell (2), and a plug rod (302) is rotatably connected inside the positioning seat (301). The positioning seat (301) is provided with a torsion spring (303), and the two ends of the torsion spring (303) are fixedly connected to the positioning seat (301) and the insertion rod (302) respectively. A limiting frame (304) is fixedly connected to the mother shell (1). A molding groove is provided on the limiting frame (304). The insert rod (302) is used in conjunction with the molding groove.

3. A solderless wire-to-board waterproof connector according to claim 2, characterized in that, The insertion rod (302) extends through the outside of the positioning seat (301) and is fixedly connected to the limiting block (305). The side of the limiting block (305) closest to the positioning seat (301) is in contact with the positioning seat (301).

4. A solderless wire-to-board waterproof connector according to claim 1, characterized in that, Also includes: A base (8) is fixedly installed inside the female rubber shell (1) and the male rubber shell (2), and a wire groove is provided on the base (8); A fastening screw (9) is threaded into the female housing (1) and the male housing (2). A retaining plate (10) is rotatably connected to the bottom of the fastening screw (9). The retaining plate (10) is located at the upper end of the base (8).

5. A solderless wire-to-board waterproof connector according to claim 1, characterized in that, Both the female housing (1) and the male housing (2) are fixedly installed with terminals (11), one of the terminals (11) is fixedly connected to a plug (12), and the other terminal (11) is fixedly connected to a socket (13) that mates with the plug (12).

6. A solderless wire-to-board waterproof connector according to claim 1, characterized in that, The sealing frame (5) has a through hole, and the sealing frame (5) is trapezoidal in shape.