Long-life waterproof plug

Abstract

The utility model discloses a long -lived waterproof plug, including insulating body, fixing piece and terminal, fixing piece is buried in the insulating body, terminal sets up on the insulating body, and terminal includes the first connecting part, fixed part and second connecting part of integrative forming connection, and fixed part is completely buried in the insulating body, and the front end peripheral side of fixed part extends the first fixed section to the outside, and the rear end peripheral side of fixed part extends the second fixed section to the outside. The insulating body is wrapped fixed with the fixed part and fixed part while injection molding, and there is no gap between the insulating body and terminal, fixing piece, and external moisture can not penetrate into the inside and rust the metal terminal, effectively prevent the connector damage, prolong the service life of connector, and cooperate with the fixed groove formed between the second fixed section and the first fixed section, and there is enough interference in the process of repeatedly plugging of the connector with the insulating body inside, and the terminal is not easy to loosen, and the service life of the connector is further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a long-life waterproof plug. Background Technology

[0002] Connectors, also known as plugs or sockets, are generally electrical connectors. They are devices that connect two active devices to transmit current or signals. The male and female terminals, upon contact, can transmit information or current, hence the name connector. With the development of technology and technology, the applications of connectors are becoming increasingly widespread, and the operating environments for connectors are becoming more complex. The most common operating environment is humid, therefore, users are paying increasing attention to the waterproof and moisture-proof performance of connectors.

[0003] Most current plug connectors use terminal slots cut into the insulating body, with the terminals assembled within these slots. This design has a significant drawback: external moisture can easily enter the terminal slot through the gap between the terminal and the inner wall of the slot, causing corrosion of the metal terminals and resulting in easy damage and a short lifespan for the connector. Therefore, it is necessary to propose a new solution to address these problems. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a long-life waterproof plug that can effectively solve the problems of poor waterproof performance of existing plug connectors, easy penetration of external moisture into the internal metal terminals, corrosion of the connector, easy damage, and short service life.

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

[0006] A long-life waterproof plug includes an insulating body, a fixing member, and a terminal. The fixing member is embedded in the insulating body and has a fixing hole exposed at the front end of the insulating body. The terminal is disposed on the insulating body and includes a first connecting part, a fixing part, and a second connecting part integrally formed in sequence. The first connecting part extends outward from the front end of the insulating body. The fixing part is completely embedded in the insulating body. A first fixing section extends outward from the front peripheral side of the fixing part, and a second fixing section extends outward from the rear peripheral side of the fixing part. A fixing groove is formed between the second fixing section and the first fixing section. The second connecting part extends outward from the rear end of the insulating body. The insulating body is injection molded and completely encloses the fixing member and the fixing part.

[0007] As a preferred embodiment, there are three terminals arranged in a triangular pattern, with the aforementioned fixing member located at the center between the three terminals.

[0008] As a preferred embodiment, the front end of the first connecting part is integrally connected to a semi-circular buffer part.

[0009] As a preferred embodiment, a through hole is provided at the connection between the semi-circular buffer portion and the first connecting portion.

[0010] As a preferred embodiment, the rear end face of the insulating body extends into an ear-like portion.

[0011] As a preferred embodiment, the rear end face of the insulating body is recessed with a groove, and the second connecting part extends outward from the inner end face of the groove.

[0012] As a preferred embodiment, the end face of the slot is provided with an annular rib protruding outward, and the annular rib forms a positioning slot.

[0013] As a preferred embodiment, a limiting groove is formed on the peripheral side of the fastener, and the limiting groove is embedded in the insulating body.

[0014] As a preferred embodiment, the fastener is a nut, and the fixing hole is a screw hole.

[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0016] The insulating body is wrapped and fixed to the fixing parts during injection molding. There are no gaps between the insulating body and the terminals and fixing parts, so external moisture cannot seep into the interior and corrode the metal terminals, effectively preventing connector damage and extending the service life of the connector. In addition, the fixing groove formed between the second fixing section and the first fixing section, the three parts have sufficient interference with the interior of the insulating body during repeated insertion and removal of the connector, so the terminals are not easy to loosen, further extending the service life of the connector.

[0017] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0018] Figure 1 This is a three-dimensional assembly diagram of a preferred embodiment of the present invention;

[0019] Figure 2 This is a three-dimensional assembly schematic diagram of a preferred embodiment of the present invention from another angle;

[0020] Figure 3 This is an exploded view of a preferred embodiment of the present invention.

[0021] Explanation of reference numerals in the attached diagram:

[0022] 10. Insulating body 11. Ear

[0023] 12. Slot 13. Annular rib

[0024] 14. Positioning groove; 20. Fixing component

[0025] 21. Fixing hole; 22. Limiting groove

[0026] 30. Terminal 31. First connecting part

[0027] 32. Fixing part; 33. Second connecting part

[0028] 321. First fixed segment 322. Second fixed segment

[0029] 323, Fixing groove; 34, Semi-circular buffer section

[0030] 35. Through hole. Detailed Implementation

[0031] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including an insulating body 10, a fixing member 20, and a terminal 30.

[0032] The rear end face of the insulating body 10 extends into an ear 11. The rear end face of the insulating body 10 is recessed into a groove 12. The end face of the groove 12 is protruding outward into an annular rib 13. The annular rib 13 forms a positioning groove 14.

[0033] The fastener 20 is embedded in the insulating body 10. The fastener 20 has a fixing hole 21, which is exposed on the front end face of the insulating body 10. The fixing hole 21 is used to lock with the external PCB board and is very convenient to operate. In this embodiment, a limiting groove 22 is formed on the peripheral side of the fastener 20. The limiting groove 22 is embedded in the insulating body 10. In addition, the fastener 20 is a nut and the fixing hole 20 is a screw hole.

[0034] The terminal 30 is disposed on the insulating body 10. The terminal 30 includes a first connecting portion 31, a fixing portion 32, and a second connecting portion 33, which are integrally formed and connected sequentially. The first connecting portion 31 extends outward from the front end face of the insulating body 10. The fixing portion 32 is completely embedded within the insulating body 10. A first fixing section 321 extends outward from the front peripheral side of the fixing portion 32, and a second fixing section 322 extends outward from the rear peripheral side of the fixing portion 32. A fixing groove 323 is formed between the second fixing section 322 and the first fixing section 321. The second connecting portion 33 extends outward from the rear end face of the insulating body 10. In this embodiment, the terminal 30 is... The three terminals 30 are arranged in a triangular pattern, with the aforementioned fixing member 20 located at the center between the three terminals. The front end of the first connecting part 31 is integrally connected to a semi-circular buffer part 34, which provides a buffering effect when the terminal 30 is inserted into the external 110 terminal, making it easier for the first connecting part 31 to be inserted into the external 110 terminal and establish a stable connection. Furthermore, a through hole 35 is provided at the connection between the semi-circular buffer part 34 and the first connecting part 31. The design of the through hole 35 can provide a certain amount of micro-deformation space for the first connecting part 31, which is more conducive to the insertion of the terminal 30. In addition, the second connecting parts 33 all extend outward from the inner end face of the slot 12.

[0035] The preparation method of this embodiment is described in detail:

[0036] First, the terminal 30 and the fixing part 20 are placed in the same injection mold, and the insulating body 10 is formed by injection molding. The fixing part 20 is embedded in the insulating body, and the fixing part 32 of the terminal 30 is also embedded in the insulating body 10.

[0037] The key design feature of this invention is that the insulating body is molded and fixed to the fixing parts and the fixing components simultaneously. There are no gaps between the insulating body and the terminals and fixing parts, preventing external moisture from seeping into the interior and corroding the metal terminals, thus effectively preventing connector damage and extending the connector's service life. Furthermore, the fixing groove formed between the second fixing section and the first fixing section ensures that the three components have sufficient interference with the interior of the insulating body during repeated insertion and removal of the connector, making it difficult for the terminals to loosen and further extending the connector's service life.

[0038] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A long-life waterproof plug, comprising an insulating body, a fixing member, and terminals; characterized in that: The fastener is embedded in the insulating body and has a fixing hole that is exposed on the front end face of the insulating body. The terminal is disposed on the insulating body and includes a first connecting part, a fixing part, and a second connecting part that are integrally formed and connected in sequence. The first connecting part extends outward from the front end face of the insulating body. The fixing part is completely embedded in the insulating body. The front peripheral side of the fixing part extends outward to form a first fixing section, and the rear peripheral side of the fixing part extends outward to form a second fixing section. A fixing groove is formed between the second fixing section and the first fixing section. The second connecting part extends outward from the rear end face of the insulating body.

2. The long-life waterproof plug according to claim 1, characterized in that: The terminal consists of three terminals arranged in a triangular pattern, with the aforementioned fixing member located at the center between the three terminals.

3. The long-life waterproof plug according to claim 1, characterized in that: The front end of the first connecting part is integrally formed with a semi-circular buffer part.

4. The long-life waterproof plug according to claim 3, characterized in that: A through hole is provided at the connection between the semi-circular buffer part and the first connecting part.

5. The long-life waterproof plug according to claim 1, characterized in that: The insulating body has an ear extending from the corner of its rear end face.

6. The long-life waterproof plug according to claim 1, characterized in that: The rear end face of the insulating body is recessed with a groove, and the second connecting part extends outward from the inner end face of the groove.

7. The long-life waterproof plug according to claim 6, characterized in that: The end face of the groove is provided with an annular rib protruding outward, and the annular rib forms a positioning groove.

8. The long-life waterproof plug according to claim 1, characterized in that: A limiting groove is formed on the peripheral side of the fastener, and the limiting groove is embedded in the insulating body.

9. The long-life waterproof plug according to claim 1, characterized in that: The fastener is a nut, and the fixing hole is a screw hole.

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