A self-locking electrical connector

Abstract

The utility model relates to electric connector technical field, and disclose a self -locking electric connector, including shell and inner shell, the shell cover is located the outside of inner shell, the inside of inner shell is provided with the connecting shell, the outside of connecting shell is connected with the connecting tongue board, both sides of the outer end of connecting tongue board all are provided with the movable hook, still be provided with the fixed hook in the both sides of the lower extreme of connecting tongue board and be located movable hook side, the bottom of shell is provided with the inner curling edge, the bottom of inner shell is provided with the outer curling edge, be provided with waterproof ring between the inner curling edge and outer curling edge. The utility model is through setting up waterproof ring between the shell and inner shell of electric connector, prevent the steam from the gap between shell and inner shell into steam through waterproof ring.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically a self-locking electrical connector. Background Technology

[0002] An electrical connector is an electromechanical component used to connect electrical circuits. It is mainly used for circuit connections between cables and between cables and equipment in electrical and electronic equipment to realize the transmission of low-frequency signals, high-frequency signals, and electrical energy (power).

[0003] A self-locking electrical connector is an electrical connector with a self-locking structure that automatically locks after the plug and socket are connected, preventing accidental detachment or loosening.

[0004] However, in common self-locking electrical connectors, there is a gap between the outer shell and the inner shell. Under humid conditions, liquid flows from between the outer shell and the inner shell into the contact end of the electrical connector, which leads to corrosion and damage of the contact end and affects the stability of the circuit connection. Therefore, a self-locking electrical connector is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, this utility model provides a self-locking electrical connector to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a self-locking electrical connector, comprising a housing and an inner housing, wherein the housing covers the outside of the inner housing, a connecting shell is disposed inside the inner housing, a connecting tongue plate is connected to the outside of the connecting shell, movable hooks are disposed on both sides of the outer end of the connecting tongue plate, and fixed hooks are disposed on both sides of the lower end of the connecting tongue plate next to the movable hooks, an inward rolled edge is provided at the bottom end of the housing, an outward rolled edge is provided at the bottom end of the inner housing, and a waterproof ring is disposed between the inward rolled edge and the outward rolled edge.

[0009] Preferably, a limiting inner block is provided on one side of the inner cavity of the outer shell, and a limiting inner groove is provided on one side of the inner cavity of the connecting shell. The limiting inner block and the limiting inner groove are adapted to each other, and the limiting inner groove and the limiting inner block are combined to limit the connecting shell and the inner shell.

[0010] Preferably, spring tabs are provided on both outer sides of the connecting shell, and the spring tabs are connected to the connecting shell, thereby improving the connection stability between the connecting shell and the inner shell.

[0011] Preferably, the outer surface of the connecting shell is provided with a protruding ring, and the protruding ring is integrally formed with the connecting shell, thereby improving the installation and fastening of the connecting shell and the inner shell.

[0012] Preferably, the outer side of the inner shell is provided with a limiting groove, and the inner side of the outer shell is provided with a first limiting protrusion on the side near the limiting groove. The first limiting protrusion is adapted to the limiting groove, and the first limiting protrusion and the limiting groove are mutually limiting each other.

[0013] Preferably, a second limiting protrusion is provided on one side of the inner shell, and the second limiting protrusion is integrally formed with the inner shell.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a self-locking electrical connector, which has the following advantages:

[0016] This invention utilizes the inner and outer rolled edges at the lower end of the outer shell to press a waterproof ring from both the top and bottom. The waterproof ring fits tightly with the inner and outer rolled edges, thereby filling and blocking the gap between the outer and inner shells to prevent moisture from entering. When the outer shell is connected to the interface, the connecting tongue automatically rebounds and locks itself through the external movable hook. The interface contacts and presses against the waterproof ring, and the deformation of the waterproof ring fills the gap between the interface and the outer shell, thus improving the waterproof performance. In summary, this invention solves the problems mentioned in the background art. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0018] Figure 2 This is a perspective view of the outer shell and inner shell of this utility model in a separated state.

[0019] Figure 3 This is a three-dimensional view of the overall structure of this utility model in its separated state;

[0020] Figure 4 This is a perspective view of the outer shell structure of this utility model.

[0021] In the diagram: 1. Outer shell; 2. Inner shell; 3. Connecting shell; 4. Connecting tongue plate; 5. Protruding ring; 6. Waterproof ring; 7. Inner rolled edge; 8. Outer rolled edge; 9. First limiting protrusion; 10. Limiting groove; 11. Limiting inner block; 12. Limiting inner groove; 13. Spring piece; 14. Second limiting protrusion; 15. Movable hook; 16. Fixed hook. 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. 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.

[0023] This utility model provides a technical solution: a self-locking electrical connector. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The device includes an outer shell 1 and an inner shell 2. The outer shell 1 covers the outside of the inner shell 2. A connecting shell 3 is provided inside the inner shell 2. A connecting tongue plate 4 is connected to the outside of the connecting shell 3. Movable hooks 15 are provided on both sides of the outer end of the connecting tongue plate 4. Fixed hooks 16 are also provided on both sides of the lower end of the connecting tongue plate 4 next to the movable hooks 15. An inward rolled edge 7 is provided at the bottom of the outer shell 1, and an outward rolled edge 8 is provided at the bottom of the inner shell 2. A waterproof ring 6 is provided between the inward rolled edge 7 and the outward rolled edge 8.

[0024] Please see Figure 2 and Figure 3 A limiting inner block 11 is provided on one side of the inner cavity of the outer shell 1, and a limiting inner groove 12 is provided on one side of the inner cavity of the connecting shell 3. The limiting inner block 11 and the limiting inner groove 12 are adapted to each other, and the limiting inner groove 12 and the limiting inner block 11 are combined to limit the connecting shell 3 and the inner shell 2.

[0025] Please see Figure 3 Both sides of the outer shell 3 are provided with spring pieces 13, and the spring pieces 13 are connected to the connecting shell 3. The spring pieces 13 improve the connection stability between the connecting shell 3 and the inner shell 2.

[0026] Please see Figure 2 and Figure 3 The outer side of the connecting shell 3 is provided with a protruding ring 5, and the protruding ring 5 is integrally formed with the connecting shell 3. The protruding ring 5 improves the installation and fastening of the connecting shell 3 and the inner shell 2.

[0027] Please see Figure 2 , Figure 3 and Figure 4 The inner shell 2 is provided with a limiting groove 10 on its exterior. The outer shell 1 is provided with a first limiting protrusion 9 on the side near the limiting groove 10. The first limiting protrusion 9 is adapted to the limiting groove 10, and the first limiting protrusion 9 and the limiting groove 10 are combined to limit each other.

[0028] Please see Figure 1 and Figure 3 A second limiting protrusion 14 is provided on one side of the inner shell 2, and the second limiting protrusion 14 is integrally formed with the inner shell 2.

[0029] In this design: the connecting shell 3 is inserted inside the inner shell 2. The convex ring 5 contacts the inner wall of the inner shell 2 to increase friction. At the same time, the spring piece 13 contacts the inner wall of the inner shell 2 to improve the connection stability of the inner shell 2. The inner shell 2 is installed inside the outer shell 1. The limiting inner block 11 limits the connection of the upper side of the connecting shell 3 to the limiting inner groove 12. Meanwhile, the first limiting protrusion 9 inside the outer shell 1 and the limiting groove 10 outside the inner shell 2 limit the inner shell 2. The inner rolled edge 7 and the outer rolled edge 8 at the lower end of the outer shell 1 squeeze the waterproof ring 6 from the upper and lower sides respectively. The waterproof ring 6 fits tightly with the inner rolled edge 7 and the outer rolled edge 8, thereby filling and blocking the gap between the outer shell 1 and the inner shell 2 to prevent moisture from entering. When the outer shell 1 is connected to the interface, the connecting tongue plate 4 automatically rebounds and self-locks through the external movable hook 15. The interface contacts and squeezes the waterproof ring 6. The deformation of the waterproof ring 6 fills the gap between the interface and the outer shell 1, thereby improving the waterproof performance.

[0030] 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.

[0031] 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 self-locking electrical connector, comprising a housing and an inner housing, wherein the housing covers the outside of the inner housing, characterized in that: The inner shell has a connecting shell inside, and a connecting tongue plate is connected to the outside of the connecting shell. Movable hooks are provided on both sides of the outer end of the connecting tongue plate, and fixed hooks are also provided next to the movable hooks. The bottom end of the outer shell has an inward rolled edge, and the bottom end of the inner shell has an outward rolled edge. A waterproof ring is provided between the inward rolled edge and the outward rolled edge.

2. The self-locking electrical connector according to claim 1, characterized in that: A limiting inner block is provided on one side of the inner cavity of the outer shell, and a limiting inner groove is provided on one side of the inner cavity of the connecting shell, and the limiting inner block and the limiting inner groove are adapted to each other.

3. A self-locking electrical connector according to claim 1, characterized in that: Both outer sides of the connecting shell are provided with spring clips, and the spring clips are connected to the connecting shell.

4. A self-locking electrical connector according to claim 1, characterized in that: The connecting shell has a protruding ring on its outside, and the protruding ring is integrally formed with the connecting shell.

5. A self-locking electrical connector according to claim 1, characterized in that: The outer side of the inner shell is provided with a limiting groove, and the inner side of the outer shell is provided with a first limiting protrusion on the side near the limiting groove, and the first limiting protrusion is adapted to the limiting groove.

6. A self-locking electrical connector according to claim 1, characterized in that: A second limiting protrusion is provided on one side of the inner shell, and the second limiting protrusion is integrally formed with the inner shell.

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