Two-piece moisture-proof locking connector and multi-pin connection terminal

By using a two-piece moisture-proof locking connector design and a tightening mechanism of sealing ring and threaded sleeve, the problem of insufficient sealing of automotive connectors is solved, achieving better waterproof and moisture-proof performance.

CN223967427UActive Publication Date: 2026-03-03SUZHOU HAIHE INTELLIGENT TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520439434.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-03-03
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Existing automotive connectors and terminal connections are prone to water ingress or moisture corrosion, resulting in insufficient sealing.

Method used

The connector features a two-piece moisture-proof locking design, consisting of a connector base and a body. It is equipped with a sealing ring and a retaining sleeve, and the sealing effect is improved by tightening the sealing ring and the threaded sleeve. The connector body is equipped with connecting threads and a rubber sealing sleeve, and the sealing performance is enhanced by tightening the threaded sleeve.

Benefits of technology

This effectively improves the connector's waterproof and moisture-proof performance, enhances the sealing effect, and improves the device's practicality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223967427U_ABST
    Figure CN223967427U_ABST
Patent Text Reader

Abstract

The utility model discloses a two-piece moistureproof locking connector and a multi-pin connecting terminal, and relates to the technical field of automobile connectors, the two-piece moistureproof locking connector comprises a connector base part, a connector main body and a plug-in terminal plugged on the connector main body, the connector base part is internally provided with a wire hole, and the plug-in terminal is connected with the connector main body. A wire hole is formed in the connector body, sealing rings are arranged at the front end and the rear end in the wire hole, a fixing sleeve used for limiting the sealing rings is further arranged on one side of each sealing ring, the fixing sleeves are connected to the connector base in a threaded mode, connecting threads are arranged on the outer portion of the connector body, and connecting terminals are further arranged in the connector body. According to the utility model, after the connecting line is inserted into the line hole, the sealing ring is screwed tightly, so that the sealing ring can be extruded tightly, the sealing effect of the sealing ring on the connecting line is ensured, and after the connecting line II is fixed, the threaded sleeve is screwed tightly, so that the sealing effect of the position of the connecting line II can be greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of automotive connector technology, specifically a two-piece moisture-proof locking connector and a multi-pin connection terminal. Background Technology

[0002] Connectors are fundamental components in electronic terminals that enable signal or current transmission and exchange. They are widely used in automotive, communications, consumer electronics, and defense industries, among others. Statistics show that the Chinese automotive connector market reached 23 billion RMB in 2019, making it the largest segment within the connector industry. Common automotive connectors consist of a sheath, terminals, and clips (TPA, CPA, PLR). Sealed connectors also include sealing rings and waterproof plugs.

[0003] Existing automotive connectors and terminals all use direct connection, and the gaps at the connection are prone to water ingress or moisture corrosion. Therefore, this utility model proposes a two-piece moisture-proof locking connector and a multi-pin connection terminal. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a two-piece moisture-proof locking connector and a multi-pin connection terminal.

[0005] Technical solution:

[0006] To achieve the above objectives, this utility model provides the following technical solution: a two-piece moisture-proof locking connector and a multi-pin connection terminal, including a connector base, a connector body, and a plug-in terminal inserted into the connector body. The connector base has a wire hole inside, and the wire hole has sealing rings at both ends. A fixing sleeve for limiting the sealing ring is also provided on one side of the sealing ring. The fixing sleeve is threaded onto the connector base. The connector base has a wire hole, a sealing ring, and a fixing sleeve threaded onto the connector base. In use, after the connecting wire is inserted into the wire hole, the sealing ring is tightened, which compresses the sealing ring tightly, thus ensuring the sealing effect of the sealing ring and effectively improving the waterproof and moisture-proof performance of one side of the device.

[0007] The connector body has connecting threads on its exterior and connecting terminals inside its interior. The plug-in terminal includes a terminal body with a rotatable threaded sleeve and a rubber sealing sleeve inside the threaded sleeve. The connector body has connecting threads, and the terminal body has a rotatable threaded sleeve and a rubber sealing sleeve. After the second connecting wire is fixed, tightening the threaded sleeve greatly improves the sealing effect at the second connecting wire position, further ensuring the waterproof and moisture-proof performance of the device and improving its practicality.

[0008] Preferably, the threaded sleeve is threaded onto the connecting thread.

[0009] Preferably, a second sealing ring is also fitted onto the connecting threads of the connector body.

[0010] Preferably, a connecting wire passes through the inside of the wire hole, and the connecting wire is electrically connected to the connecting terminal.

[0011] Preferably, the terminal body is provided with a second connection terminal adapted to the connection terminal, and the second connection terminal is electrically connected to a second connection wire.

[0012] Preferably, the two ends of the wire hole are provided with stepped grooves for installing sealing rings.

[0013] Preferably, the cross-sectional shape of the rubber sealing sleeve is stepped.

[0014] Beneficial effects

[0015] Compared with existing technologies, this two-piece moisture-proof locking connector and multi-pin connection terminal have the following advantages:

[0016] Beneficial effects:

[0017] 1. The connector base of this utility model is provided with a wire hole, a sealing ring, and a fixing sleeve that is threaded onto the connector base. When in use, after the connecting wire is inserted into the wire hole, the sealing ring is tightened to compress it tightly, thereby ensuring the sealing effect of the sealing ring and effectively improving the waterproof and moisture-proof performance of one side of the device.

[0018] Second, by setting a connecting thread on the connector body and setting a rotatable threaded sleeve and a rubber sealing sleeve on the terminal body, the sealing effect at the position of the connecting wire 2 can be greatly improved after the connecting wire 2 is fixed and the threaded sleeve is tightened, thereby further ensuring the waterproof and moisture-proof performance of the device and improving the practicality of the device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the plug-in terminal of this utility model.

[0023] In the picture:

[0024] 1. Connector base; 2. Connector body; 3. Plug terminal; 4. Second sealing ring; 5. Connecting wire; 6. Connecting wire II; 101. Wire hole; 102. Sealing ring; 103. Fixing sleeve; 201. Connecting thread; 202. Connecting terminal; 301. Terminal body; 302. Threaded sleeve; 303. Rubber sealing sleeve; 1011. Stepped groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-3 As shown, this utility model provides a technical solution: a two-piece moisture-proof locking connector and a multi-pin connection terminal, including a connector base 1, a connector body 2, and a plug-in terminal 3 inserted into the connector body 2. The connector base 1 has a wire hole 101 inside, and a sealing ring 102 is provided at both the front and rear ends inside the wire hole 101. A fixing sleeve 103 for limiting the sealing ring 102 is also provided on one side of the sealing ring 102. The fixing sleeve 103 is threadedly connected to the connector base 1. The connector base 1 has a wire hole 101, a sealing ring 102, and a fixing sleeve 103 threadedly connected to the connector base 1. In use, after the connecting wire is inserted into the wire hole 101, the sealing ring 102 is tightened, which can compress the sealing ring 102 tightly, thereby ensuring the sealing effect of the sealing ring 102 and effectively improving the waterproof and moisture-proof performance of one side of the device.

[0027] The connector body 2 in this application has a connecting thread 201 on its exterior and a connecting terminal 202 inside. The plug-in terminal 3 includes a terminal body 301, a rotatable threaded sleeve 302 on the terminal body 301, and a rubber sealing sleeve 303 inside the threaded sleeve 302. The cross-sectional shape of the rubber sealing sleeve 303 is stepped. The connector body 2 has a connecting thread 201, and the terminal body 301 has a rotatable threaded sleeve 302 and a rubber sealing sleeve 303. After the connecting wire 6 is fixed, tightening the threaded sleeve 302 can greatly improve the sealing effect at the position of the connecting wire 6, further ensuring the waterproof and moisture-proof performance of the device and improving the practicality of the device.

[0028] Please refer to the following carefully. Figure 1 and Figure 2 The threaded sleeve 302 is threaded onto the connecting thread 201, and the connecting thread 201 of the connector body 2 is also fitted with a second sealing ring 4.

[0029] Please refer to the following carefully. Figure 1 and Figure 3 A connecting wire 5 passes through the inside of the wire hole 101. The connecting wire 5 is electrically connected to the connecting terminal 202. The two ends of the wire hole 101 are provided with stepped grooves 1011 for installing the sealing ring 102. The terminal body 301 is provided with a second connecting terminal 304 that is adapted to the connecting terminal 202. The second connecting terminal 304 is electrically connected to the second connecting wire 6.

[0030] Working principle: When in use, after the connecting wire is inserted into the wire hole 101, tighten the sealing ring 102 to make the sealing ring 102 compact and ensure the sealing effect of the sealing ring 102. After the connecting wire 6 is fixed, tighten the threaded sleeve 302 to greatly improve the sealing effect at the position of the connecting wire 6.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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 two-piece moisture-proof locking connector and a multi-pin connection terminal, comprising a connector base (1) and a connector body (2) and a plug terminal (3) inserted into the connector body (2), characterized in that: The connector base (1) is provided with a wire hole (101) inside. The wire hole (101) is provided with a sealing ring (102) at both the front and rear ends. A fixing sleeve (103) for limiting the sealing ring (102) is also provided on one side of the sealing ring (102). The fixing sleeve (103) is threaded onto the connector base (1). The connector body (2) is provided with a connecting thread (201) on the outside, and a connecting terminal (202) is also provided inside the connector body (2); The plug-in terminal (3) includes a terminal body (301), on which a rotatable threaded sleeve (302) is provided, and a rubber sealing sleeve (303) is provided inside the threaded sleeve (302).

2. The two-piece moisture-proof locking connector and multi-pin connection terminal according to claim 1, characterized in that: The threaded sleeve (302) is threaded onto the connecting thread (201).

3. The two-piece moisture-proof locking connector and multi-pin connection terminal according to claim 1, characterized in that: A second sealing ring (4) is also fitted onto the connecting thread (201) of the connector body (2).

4. The two-piece moisture-proof locking connector and multi-pin connection terminal according to claim 1, characterized in that: A connecting wire (5) runs through the inside of the wire hole (101), and the connecting wire (5) is electrically connected to the connecting terminal (202).

5. The two-piece moisture-proof locking connector and multi-pin connection terminal according to claim 1, characterized in that: The terminal body (301) is provided with a second connection terminal (304) adapted to the connection terminal (202), and the second connection terminal (304) is electrically connected to a second connection wire (6).

6. The two-piece moisture-proof locking connector and multi-pin connection terminal according to claim 1, characterized in that: The wire hole (101) has stepped grooves (1011) at both ends for installing sealing rings (102).

7. The two-piece moisture-proof locking connector and multi-pin connection terminal according to claim 1, characterized in that: The cross-sectional shape of the rubber sealing sleeve (303) is stepped.