Electric connector easy to assemble

Abstract

The electric connector comprises a lower connecting seat, a plurality of assembling cavities with open bottom ends are arranged in the lower connecting seat, wiring terminals are inserted in the assembling cavities, a plurality of jacks corresponding to the assembling cavities are arranged at the top end of the lower connecting seat, and the wiring terminals are inserted into the jacks. Convex buckles protruding outwards are arranged on the opposite sides of the wiring terminal, reverse buckle grooves corresponding to the convex buckles are formed in the cavity wall of the assembly cavity, and the inserted wiring terminal is fixed in the assembly cavity by clamping the convex buckles in the reverse buckle grooves; when the lower connecting seat in the electric connector is assembled, the wiring terminal can be directly inserted into the assembling cavity without the help of other accessories and is fixed by matching the convex buckle with the reverse buckle groove, so that the accessories for firstly fixing the wiring terminal and the added assembling process are omitted, the assembling efficiency of the lower connecting seat is improved, and the production cost is reduced; and the electric connector can be produced on a full-automatic production line.

Description

Technical Field

[0001] The utility model relates to the field of electric connectors, in particular to an electric connector which is easy to assemble. Background Art

[0002] The current electrical connector is shown in a side-draining lower coupler and electronic product in Chinese patent document, application number: CN202320364120.4. Its main structure includes a shell, a bracket and a terminal. During the assembly process, the terminal needs to be inserted into the concave cavity of the bracket first, and then the terminal is fixed with the bracket. Finally, the bracket is inserted into the shell to complete the assembly process of the lower coupler. The lower coupler of this structure adds a bracket, which increases the production cost and adds at least one step to the assembly process, resulting in reduced production efficiency. Moreover, the lower coupler of this structure is only suitable for manual assembly and cannot be produced on a fully automated assembly production line. It is limited for manufacturers whose purpose is to improve production efficiency and reduce labor costs. Therefore, there is a need for further improvement of the existing technology. Summary of the Invention

[0003] The purpose of the utility model is to solve the above-mentioned existing problems and provide an electrical connector with a simple and reasonable structure and easy assembly.

[0004] A simple-to-assemble electrical connector includes a lower connecting base, wherein the lower connecting base is provided with a plurality of assembly cavities with open bottom ends, wherein wiring terminals are inserted into the assembly cavities, and a plurality of jacks are provided at the top of the lower connecting base corresponding to the assembly cavities, and a pair of sides of the wiring terminals are provided with convex buckles protruding outward, and the cavity wall of the assembly cavity is provided with reverse buckle grooves corresponding to the convex buckles, and the inserted wiring terminals are fixed in the assembly cavity by snapping the convex buckles into the reverse buckle grooves.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, the protruding buckle includes a spring piece, the upper end of which is integrally connected to the wiring terminal, and the spring piece is obliquely extended outward from the wiring terminal.

[0007] As a further solution, a stop surface is provided at the lower end of the reverse buckle groove, the lower end of the spring piece is limited and abuts against the stop surface, and an inclined avoidance surface is provided at the upper end of the reverse buckle groove.

[0008] As a further solution, the terminal includes a terminal base that forms a linear sliding fit with the assembly cavity, a pair of clamping springs extend from the upper side of the terminal base, the spring sheet is connected to the lower part of the clamping spring, and a wiring spring extends from the lower side of the terminal base, and the lower end of the wiring spring extends out of the assembly cavity.

[0009] As a further solution, a drainage hole is formed on the side wall of the lower connecting seat corresponding to each assembly cavity, and the bottom of the drainage hole is at the same height as the terminal base or slightly higher than the terminal base.

[0010] As a further solution, the jack is in the shape of a trumpet that is wider at the top and narrower at the bottom.

[0011] As a further solution, the top of the lower connecting seat is connected to a cover body, and a through hole is opened in the cover body corresponding to the socket. An elastic waterproof pad is pressed between the cover body and the lower connecting seat, and the elastic waterproof pad is provided with a boss protruding into the through hole, and an elastic slit is opened on the boss.

[0012] As a further solution, a step surface is provided along the edge of the top of the lower connecting seat, and a buckle groove is provided on the side wall of the step surface. A rib extends downward from the cover edge of the cover body, and the rib abuts against the step surface, and an inverted block extends from its inner side to engage with the buckle groove.

[0013] As a further solution, a pair of connecting brackets extend from opposite sides of the bottom of the lower connecting seat. The connecting brackets are L-shaped, and the transverse parts thereof are provided with connecting holes, and the upper parts of the longitudinal parts are integrally connected to the lower connecting seat.

[0014] As a further solution, an upper connecting seat is further included, wherein the upper connecting seat is provided with a plug-in cavity suitable for the lower connecting seat to be embedded, and a plurality of pins electrically connected to the wiring terminals are arranged in the plug-in cavity.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model discloses an electrical connector which is easy to assemble. When assembling the lower connecting seat of the electrical connector, the wiring terminals can be directly plugged into the assembly cavity without the aid of other accessories, and are fixed by the cooperation of the protruding buckles and the reverse buckle grooves. This eliminates the need for accessories for fixing the wiring terminals in advance and the additional assembly process, thereby improving the assembly efficiency of the lower connecting seat, reducing production costs, and enabling the electrical connector to be produced on a fully automated production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic cross-sectional view of an embodiment of the present invention.

[0018] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0019] Figure 3 This is a schematic diagram of the wiring terminal structure in the utility model.

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure from another angle in the present invention.

[0021] Figure 5 It is a schematic diagram of the decomposition structure of the utility model.

[0022] Figure 6 This is a schematic diagram of the exploded structure of the upper connecting seat and the lower connecting seat in the utility model. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 6 As shown, a simple assembly electrical connector includes a lower connecting base 1, wherein the lower connecting base 1 is provided with a plurality of assembly cavities 101 with open bottom ends, wherein the assembly cavities 101 are inserted with connection terminals 2, and the top of the lower connecting base 1 is provided with a plurality of jacks 102 corresponding to the assembly cavities 101, and a pair of sides of the connection terminals 2 are provided with protruding buckles protruding outward, and the cavity wall of the assembly cavity 101 is provided with reverse buckle grooves 3 corresponding to the protruding buckles, and the inserted connection terminals 2 are fixed in the assembly cavity 101 by snapping the protruding buckles into the reverse buckle grooves 3.

[0025] When assembling the lower connecting base 1 in this electrical connector, the terminal 2 can be directly plugged into the assembly cavity 101 without the aid of other accessories, and is fixed by using its own protruding buckle and the reverse buckle groove 3. This eliminates the need for accessories to fix the terminal 2 in advance and the additional assembly process, thereby improving the assembly efficiency of the lower connecting base 1, reducing production costs, and enabling the electrical connector to be produced on a fully automated production line.

[0026] The convex buckle includes a spring piece 4, the upper end of which is integrally connected to the terminal 2, and the spring piece 4 is obliquely extended outward from the terminal 2; the spring piece 4 can be integrally formed with the terminal 2 by stamping, with good connection strength and high production efficiency.

[0027] The lower end of the reverse buckle groove 3 is provided with a stop surface 301, and the lower end of the spring piece 4 is limited to abut against the stop surface 301, and the upper end of the reverse buckle groove 3 is provided with an inclined avoidance surface 302; after the terminal 2 is buckled into place, the spring piece 4 will be buckled on the stop surface 301, and the inclined avoidance surface 302 can reserve space for the spring piece 4 to prevent the right-angled position of the upper end of the reverse buckle groove 3 from pressing against the spring piece 4, so that the spring piece 4 does not need to increase the inclination angle or increase the length of the reverse buckle groove 3.

[0028] The terminal block 2 includes a terminal base 21 that forms a linear sliding fit with the assembly cavity 101. A pair of clip springs 22 extend from the upper side of the terminal base 21. The spring 4 is connected to the lower portion of the clip springs 22. A connection spring 23 extends from the lower side of the terminal base 21. The lower end of the connection spring 23 extends out of the assembly cavity 101.

[0029] The shape of the terminal base 21 is adapted to the cross-sectional shape of the assembly cavity 101. When the terminal 2 is inserted, it plays a guiding role, making it easier for the spring 4 to be buckled into the reverse buckle groove 3. The clamping spring 22 is connected to a pair of side edges of the terminal base 21, and the wiring spring 23 is connected to one of the remaining side edges. The lower portion of the clamping spring 22 and the wiring spring 23 are perpendicular to the terminal base 21. Therefore, when the terminal 2 is inserted into the assembly cavity 101, the terminal 2 is prevented from swinging left and right.

[0030] A drainage hole 103 is formed on the side wall of the lower connecting base 1 corresponding to each assembly cavity 101. The bottom of the drainage hole 103 is at the same height as the terminal base 21 or slightly higher than the terminal base 21. Water that penetrates into the assembly cavity 101 can be discharged through the drainage hole 103, so that water that falls into the terminal base 21 can be quickly drained away, thereby improving the safety of the electrical connector.

[0031] The socket 102 is in the shape of a trumpet that is wide at the top and narrow at the bottom. The socket 102 of this shape helps to guide the pin 9 when it is inserted, so that the pin 9 can be inserted into the terminal block 2 more accurately.

[0032] The top of the lower connecting seat 1 is connected to a cover body 5, and a through hole 501 is opened in the cover body 5 corresponding to the socket 102. An elastic waterproof pad 6 is pressed between the cover body 5 and the lower connecting seat 1. The elastic waterproof pad 6 is provided with a boss 601 protruding into the through hole 501, and an elastic slit 602 is opened on the boss 601. The elastic waterproof pad 6 is fixed by the cover body 5 so that the elastic waterproof pad 6 can be evenly stressed, which is conducive to improving the waterproof performance.

[0033] A step surface 104 is provided along the edge of the top of the lower connecting seat 1, and a buckle groove 105 is provided on the side wall of the step surface 104. A rib 502 extends downward from the cover edge of the cover body 5, and the rib 502 abuts against the step surface 104, and an undercut block 503 is extended on the inner side thereof to be engaged with the buckle groove 105; this structure utilizes the undercut block 503 to cooperate with the buckle groove 105 to realize the assembly and disassembly of the cover body 5, has a simple structure, and is convenient and quick to install.

[0034] A pair of connecting brackets 7 extend from opposite sides of the bottom of the lower connecting base 1. The connecting brackets 7 are L-shaped, and a connecting hole 701 is formed in the transverse portion thereof. The upper portion of the longitudinal portion is integrally connected to the lower connecting base 1. Since the lower end of the wiring spring 23 extends out of the assembly cavity 101, the lower connecting base 1 can be supported by the connecting brackets 7, so that space is retained between the lower connecting base 1 and the installation plane to avoid bending of the wiring spring 23.

[0035] It also includes an upper connecting seat 8 , which is provided with a plug-in cavity 801 suitable for the lower connecting seat 1 to be inserted into. A plurality of pins 9 electrically connected to the terminal block 2 are arranged in the plug-in cavity 801 .

[0036] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A simple-to-assemble electrical connector, comprising a lower connector base, the lower connector base having a plurality of assembly cavities with open bottom ends, the assembly cavities receiving terminal blocks, and a plurality of jacks formed at the top of the lower connector base corresponding to the assembly cavities, characterized in that: A pair of sides of the terminal block are provided with convex buckles protruding outward, and the cavity wall of the assembly cavity is provided with reverse buckle grooves corresponding to the convex buckles. The convex buckles are snapped into the reverse buckle grooves to fix the inserted terminal block in the assembly cavity.

2. The easily assembled electrical connector according to claim 1, wherein: The convex buckle includes a spring piece, the upper end of which is integrally connected to the wiring terminal, and the spring piece is obliquely extended outward from the wiring terminal.

3. The easily assembled electrical connector according to claim 2, wherein: The lower end of the reverse buckle groove is provided with a stop surface, the lower end of the spring piece is limited and abuts against the stop surface, and the upper end of the reverse buckle groove is provided with an inclined avoidance surface.

4. The easily assembled electrical connector according to claim 2, wherein: The connecting terminal includes a terminal base that forms a linear sliding fit with the assembly cavity, a pair of clamping springs extend from the upper side of the terminal base, the spring is connected to the lower part of the clamping spring, and a connecting spring extends from the lower side of the terminal base, and the lower end of the connecting spring extends out of the assembly cavity.

5. The easily assembled electrical connector according to claim 4, characterized in that: A drainage hole is formed on the side wall of the lower connecting seat corresponding to each assembly cavity, and the bottom of the drainage hole is at the same height as the terminal base or slightly higher than the terminal base.

6. The easily assembled electrical connector according to claim 1, characterized in that: The jack is in a trumpet shape that is wide at the top and narrow at the bottom.

7. The easily assembled electrical connector according to claim 1, wherein: The top of the lower connecting seat is connected to a cover body, and a through hole is opened in the cover body corresponding to the jack. An elastic waterproof pad is pressed between the cover body and the lower connecting seat. The elastic waterproof pad is provided with a boss protruding into the through hole, and an elastic slit is opened on the boss.

8. The easily assembled electrical connector according to claim 7, characterized in that: The top of the lower connecting seat is provided with a step surface along the edge, and the side wall of the step surface is provided with a buckle groove. The cover edge of the cover body extends downward with a rib, which abuts against the step surface, and an inverted block extends inside the rib and engages with the buckle groove.

9. The easily assembled electrical connector according to claim 1, wherein: A pair of connecting brackets extend from opposite sides of the bottom of the lower connecting seat. The connecting brackets are L-shaped, and the transverse portions thereof are provided with connecting holes, and the upper portions of the longitudinal portions are integrally connected to the lower connecting seat.

10. The easily assembled electrical connector according to claim 1, characterized in that: It also includes an upper connecting seat, which is provided with a plug-in cavity suitable for the lower connecting seat to be embedded, and a plurality of pins electrically connected to the wiring terminals are arranged in the plug-in cavity.

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