TW201906238A - Electrical connector - Google Patents

Abstract

The present invention relates to an electrical connector. The electrical connector includes an insulative plate, a number of terminals and wires. The insulative plate has a support surface and a first retaining slot recessed from the support surface. The terminals are attached to the insulative plate along a vertical direction of the support surface, and each has a first secured portion engaging with the first retaining slot, a mating portion forwardly extending beyond the insulative plate, and a first wiring portion connecting with the first secured portion. The wires electricaly connect with the first wiring portion.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector that facilitates soldering.

The wires can be found in various electrical devices for various signal transmissions. Conventional wires are directly connected to the circuit board of the corresponding electrical device by soldering; thereby, when there are many wires to be connected, one of the wires is soldered and its corresponding position on the circuit board is compared. Trouble, it takes a lot of technical manpower and time; in addition, when the adjacent conductors are relatively close, the electrical connection positions of the wires are easily contacted and short-circuited when welding.

In view of this, it is indeed necessary to further improve the traditional connection method to solve the above problems.

It is an object of the present invention to provide an electrical connector that facilitates soldering.

In order to achieve the above object, the present invention provides an electrical connector, comprising: an insulating substrate having a bearing surface and a first fixing groove recessed from the bearing surface; a plurality of connecting terminals mounted and fixed to the vertical bearing surface a first fixing portion fixedly coupled to the first fixing groove, abutting portion extending forward from the one end of the first fixing portion to the insulating substrate, and a first connecting portion connected to the other end of the first fixing portion; , extending into the first wiring portion, and being fixedly connected to the terminal through the first wiring portion.

As a further improvement of the present invention, the first fixing portion has an inverted U shape, and has a first base portion parallel to the bearing surface, and a first fixing leg extending from both sides of the first base portion, wherein the first fixing slot corresponds to The first fixing legs are spaced apart from each other, and the abutting portion and the first connecting portion are respectively connected to both sides of the first base.

As a further improvement of the present invention, the insulating substrate is provided with a first wire receiving groove extending in the front-rear direction to below the first wire portion, and the first wire portion extends downward into the first wire receiving groove, The wire has a wire core that is riveted to the first terminal portion.

As a further improvement of the present invention, the terminal is further connected with a first transition portion between the first fixing portion and the first connecting portion, and the insulating substrate is further connected with a receiving groove in front of the first wire receiving groove. The width of the accommodating groove is smaller than the width of the first wire accommodating groove, and is adapted to the width of the first transition portion, so that both sides of the first transition portion can abut against the inner walls of the accommodating groove. Hold the limit.

As a further improvement of the present invention, the insulating substrate protrudes from the first wire receiving groove with a wire protrusion.

As a further improvement of the present invention, the terminal further has a second fixing portion connected to the rear of the first connecting portion, and the insulating substrate has a second fixing groove recessed from the bearing surface to be fixed with the second fixing portion. The second fixing groove is located on two sides of the first wire receiving groove in a lateral direction, and the second fixing portion has an inverted U shape, and has a second base portion parallel to the bearing surface and protrudes from the two sides of the second base portion respectively. The second fixing leg in the second fixing groove is described.

As a further improvement of the present invention, the depth of the first wire receiving groove is not smaller than the outer diameter of the wire; and the insulating substrate is recessed downward from the bearing surface at a position around the terminal to form a recess. The first base portion and the second base portion of the terminal are housed in the recess and do not protrude to the outside of the bearing surface.

As a further improvement of the present invention, the terminal further has a second connecting portion connected to the rear of the second fixing portion, the second connecting portion extends into the first wire receiving groove, and the wire is riveted to the wire among them.

According to a further improvement of the present invention, the insulating substrate is provided with a first wire receiving groove extending in the front-rear direction, a second wire receiving groove communicating with the rear of the first wire receiving groove, and a rear portion communicating with the second wire receiving groove. The first wire receiving slot is parallel to the third wire receiving slot, and the distance between the third wire receiving slot is smaller than the distance between the first wire receiving slots, and the wire is along the first The second and third wire receiving slots extend.

According to a further improvement of the present invention, the insulating substrate is provided with a first wire receiving groove extending in the front-rear direction, a second wire receiving groove communicating with the rear of the first wire receiving groove, and a third wire communicating with the second wire receiving groove. The first wire receiving groove is perpendicular to the third wire receiving groove, and the distance between the third wire receiving groove is smaller than the distance between the first wire receiving grooves, and the wire is along the first and the first Second, the third wire receiving slot extends.

Compared with the prior art, in the electrical connector of the present invention, the wire is fixedly connected to the terminal, and then the wire is pre-fixed to an insulating substrate by the terminal, thereby allowing the wire to be arranged before leaving the factory. The position is good, and in the welding, only one of the butt joints of the electrical connector is aligned with the gold finger on the corresponding circuit board, and the one-time welding operation can be performed, the connection is convenient and fast, and the insulating substrate can effectively avoid the adjacent wires. The contact short circuit at the connection position ensures the normal and stable transmission of the signal; in addition, the overall structure of the electrical connector of the invention is relatively simple, and the installation is convenient and quick.

Please refer to the first to third figures together for a preferred embodiment of the electrical connector 100 of the present invention. The electrical connector 100 is used to interface with a circuit board 200 and includes an insulating substrate 1 and a plurality of cable assemblies fixed to the insulating substrate 1. Each cable assembly includes a terminal 2 and a wire 3 electrically connected to the terminal 2.

The insulating substrate 1 has a flat shape in combination with the first and second figures, and has an abutting surface 11 disposed adjacent to the circuit board 200, a rear end surface 12 opposite to the mating surface 11, and a connecting abutting surface. 11 and two side faces 13 on both sides of the rear end face 12, a bearing surface 14 at the top and a self-supporting surface 14 are recessed to fix the first fixing groove 15 of the terminal 2.

As shown in the first to third figures, the terminal 2 is mounted and fixed to the insulating substrate 1 in the direction of the vertical bearing surface 14 and has a first fixing portion 21 fixedly engaged with the first fixing groove 15, and One end of the first fixing portion 21 extends forward from the abutting portion 22 of the insulating substrate 1 and the first connecting portion 23 connected to the other end of the first fixing portion 21. The wire 3 extends into the first terminal portion 23 and is fixedly connected to the terminal 2 by the first terminal portion 23.

Specifically, the abutting portion 22 is disposed in a flat shape. The first fixing groove 15 is disposed adjacent to the abutting surface 11 to position the terminal 2 near the circuit board 200, thereby facilitating alignment when the butting portion 22 is soldered to the circuit board 200, and when soldering It does not shake and causes adjacent terminals 2 to contact, resulting in a short circuit.

Preferably, in order to ensure the stability of the first fixing portion 21, the first fixing portion 21 is disposed in an inverted U shape, and has a first base portion 211 parallel to the bearing surface 14 from both sides of the first base portion 211. The first fixed legs 212 are respectively extended. The abutting portion 22 and the first connecting portion 23 are respectively connected to both sides of the first base portion 211. The first fixing groove 15 is also disposed at a distance from the first fixing leg 212. The two sides of the first fixing leg 212 are fixed to the inner wall of the first fixing groove 15 by providing the barb structure 2121.

Further, in order to protect the connection between the terminal 2 and the wire 3, the insulating substrate 1 is further provided with a first wire receiving groove 16 extending in the front-rear direction to below the first wire portion 23. The first connecting portion 23 extends downward into the first wire receiving groove 16 , and the wire 3 has a core 31 at the front end to be riveted to the first connecting portion 23 . A portion of the main body of the wire 3 behind the front end core 31 is also received in the first wire receiving slot 16 . The insulating substrate 1 protrudes toward the first wire receiving slot 16 to limit the outward separation of the wire 3 . The card line protrusions 10.

As can be seen from the second figure, the terminal 2 is further connected with a first transition portion 24 between the first fixing portion 21 and the first connecting portion 23. The accommodating substrate 1 is further disposed in the front of the first wire accommodating groove 16 with a receiving groove 17 . The width of the accommodating groove 17 is smaller than the width of the first wire accommodating groove 16 and is opposite to the first transition portion 24 . The width is adapted such that the two sides of the first transition portion 24 can abut against the inner walls of the two sides of the accommodating groove 17 to prevent the joint between the first base portion 211 and the first transition portion 24 from being torn. The first fixing slots 15 are disposed on opposite sides of the receiving slots 17 .

Referring to the first to third figures, in the embodiment, in order to enhance the fixing stability, the terminal 2 further has a second fixing portion 25 connected to the rear of the first connecting portion 23, and is connected to the The second wiring portion 27 behind the second fixing portion 25. The second fixing portion 25 and the first connecting portion 23 and the second fixing portion 25 and the second connecting portion 27 are connected to each other by the second transition portion 28. The second fixing portion 25 is also disposed in an inverted U shape, and has a second base portion 251 parallel to the bearing surface 14 and a second fixing leg extending from the two sides of the second base portion 251 into the second fixing groove 18 respectively. 252.

Accordingly, the insulating substrate 1 has a second fixing groove 18 recessed from the bearing surface 14 to be fixed to the second fixing portion 25. The second fixing slots 18 are laterally located on opposite sides of the first wire receiving slot 16 . The two sides of the second fixing leg 252 are also fixed by interference with the inner wall of the second fixing groove 18 by providing the barb structure 2521.

The second connecting portion 27 extends into the first wire receiving groove 16 and rives the main body portion of the wire 3 behind the front end core 31 therein. The aforementioned wire protrusion 10 is located behind the second fixing groove 18.

Further, in order to protect the cable assembly of the present invention, the depth of the first wire receiving groove 16 is set to be not smaller than the outer diameter of the wire 3; and the insulating substrate 1 is located around the terminal 2. The recessed portion 19 is recessed from the bearing surface 14 as a whole, whereby the first base portion 211 and the second base portion 251 of the terminal 2 are received in the recess 19, so that the whole portion does not protrude to the outside of the bearing surface 14 substantially. .

Further, as shown in the first and second figures, the first wire receiving grooves 16 extend in the front-rear direction and extend through the insulating substrate 1 in the front-back direction, so that the plurality of wires 3 are extended in the front-rear direction. On the insulating substrate 1.

As another preferred embodiment of the electrical connector 100' of the present invention, in combination with the fourth figure, in order to meet the requirements of the outlet, the insulating substrate 1' is disposed along the front and rear direction in comparison with the first preferred embodiment. The second wire receiving groove 163 communicating with the rear of the first wire receiving groove 161 and the third wire receiving groove 163 communicating with the rear of the second wire receiving groove 163 are disposed outside the extended first wire receiving groove 161; The first wire accommodating groove 161 does not penetrate the insulating substrate 1 ′ backward, and the third wire accommodating groove 163 penetrates the insulating substrate 1 ′ backward. The first wire receiving groove 161 and the third wire receiving groove 163 are parallel, and the distance between the third wire receiving grooves 163 is smaller than the distance between the first wire receiving grooves 161, and the wire 3' is along the foregoing The first, second, and third wire receiving grooves 161, 162, and 163 extend, thereby causing the wires 3' to gather behind the insulating substrate 1'.

As shown in the fifth embodiment, as another preferred embodiment of the electrical connector 100" of the present invention, in order to meet the requirements of the outlet, the insulating substrate 1" is disposed along the front and rear direction in comparison with the first preferred embodiment. The second wire receiving groove 162" connected to the rear of the first wire receiving groove 161" and the third wire receiving groove 163" communicating with the second wire receiving groove 162" are disposed outside the extended first wire receiving groove 161"; The first wire receiving groove 161 ′′ extends through the insulating substrate 1 ′′, and the third wire receiving groove 163 ′′ extends laterally through the insulating substrate 1 ′′. The first wire receiving groove 161 ′′ and the third wire receiving The slot 163" is perpendicular, the distance between the third wire receiving slots 163" is smaller than the distance between the first wire receiving slots 161", and the wires 3" are along the first, second, and third wire receiving slots. 161", 162", 163" extend, thereby causing the wires 3" to gather on one side of the insulating substrate 1".

As can be seen from the above, in the electrical connector 100, 100', 100" of the present invention, the wires 3, 3', 3" are fixedly connected to the terminal 2, and then the wires 3, 3', 3 are connected by the terminal 2. "Uniformly fixed to an insulating substrate 1, 1', 1", so that the wires 3, 3', 3" can be arranged and placed before leaving the factory, and then only the electrical connectors are required for soldering. Each of the mating portions 22 of 100, 100', 100" can be aligned with the gold finger on the corresponding circuit board to perform a one-time welding operation, and the connection is convenient and fast. In addition, the insulating substrate 1, 1', 1" can effectively avoid the phase. The contact short circuit at the connection position of the adjacent wires 3, 3', 3" ensures normal and stable transmission of the signal; in addition, the overall structure of the electrical connector 100, 100', 100" of the present invention is relatively simple, and the installation is convenient and quick.

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

100, 100’, 100”‧‧‧ electrical connectors

200‧‧‧ boards

1, 1', 1" ‧ ‧ insulating substrate

11‧‧‧ docking

12‧‧‧ rear end face

13‧‧‧ side

14‧‧‧ bearing surface

15‧‧‧First fixed slot

16,161,161"‧‧‧First wire receiving slot

162, 162"‧‧‧Second wire receiving slot

163, 163" ‧ ‧ third wire receiving slot

17‧‧‧ accommodating slots

18‧‧‧Second fixing slot

19‧‧‧ recess

10‧‧‧ card line protrusion

2‧‧‧ Terminals

21‧‧‧First Fixed Department

211‧‧‧ first base

212‧‧‧First fixed foot

2121‧‧‧ barbed structure

22‧‧‧Docking Department

23‧‧‧First wiring department

24‧‧‧ First Transition Department

25‧‧‧Second fixed department

251‧‧‧ second base

252‧‧‧Second fixed foot

2521‧‧‧ barbed structure

27‧‧‧Second wiring department

28‧‧‧ Second Transition Department

3, 3'‧‧‧ wires

31‧‧‧ wire core

The first figure is a perspective view of a preferred embodiment of the present invention in which an electrical connector is soldered to a circuit board. The second figure is a perspective view of the insulating substrate of the electrical connector shown in the first figure. The third figure is an exploded perspective view of the cable assembly of the electrical connector shown in the first figure. Figure 4 is a perspective view of another embodiment of the present invention in which an electrical connector is soldered to a circuit board. Figure 5 is a perspective view showing a welding of an electrical connector and a circuit board in still another preferred embodiment of the present invention.

Claims (10)

An electrical connector includes: an insulating substrate having a bearing surface and a first fixing groove recessed from the bearing surface; a plurality of terminals connected to the insulating substrate in a direction perpendicular to the bearing surface, and having a first fixing a first fixing portion fixedly engaged with the slot, an abutting portion extending from the one end of the first fixing portion to the insulating substrate, and a first connecting portion connected to the other end of the first fixing portion; the wire extending into the first connecting portion and borrowing The first terminal is fixedly connected to the terminal. The electrical connector of claim 1, wherein the first fixing portion has an inverted U shape and has a first base portion parallel to the bearing surface, and a first fixing leg extending from both sides of the first base portion The first fixing groove is disposed at intervals corresponding to the first fixing legs, and the abutting portion and the first connecting portion are respectively connected to both sides of the first base. The electrical connector of claim 1, wherein the insulating substrate is provided with a first wire receiving groove extending in a front-rear direction to a lower portion of the first wire portion, the first wire portion extending downwardly In a wire receiving groove, the wire has a wire core riveted to the first terminal portion. The electrical connector of claim 3, wherein the terminal is further connected with a first transition portion between the first fixing portion and the first connecting portion, and the insulating substrate is in the first wire receiving slot. A receiving slot is further disposed in the front, the width of the receiving slot is smaller than the width of the first wire receiving slot, and is adapted to the width of the first transition portion, so that the first transition portion can be The inner walls of both sides of the accommodating groove resist the limit. The electrical connector of claim 3, wherein the insulating substrate protrudes from the first wire receiving groove with a wire protrusion. The electrical connector of claim 3, wherein the terminal further has a second fixing portion connected to the rear of the first wiring portion, the insulating substrate having a self-supporting surface recessed to be opposite to the second fixing portion a second fixing groove, the second fixing groove is laterally located on two sides of the first wire receiving groove, the second fixing portion is inverted U-shaped, and has a second base parallel to the bearing surface, Two second sides of the two bases respectively extend into the second fixing legs in the second fixing groove. The electrical connector of claim 6, wherein a depth of the first wire receiving groove is set to be not smaller than an outer diameter of the wire; and the insulating substrate is at the position around the terminal from the bearing The face is integrally recessed downward to form a recess, and the first base portion and the second base portion of the terminal are housed in the recess and do not protrude to the outside of the bearing surface. The electrical connector of claim 6, wherein the terminal further has a second connecting portion connected to the rear of the second fixing portion, the second connecting portion extending into the first wire receiving portion In the slot, and rive the wire into it. The electrical connector of claim 1, wherein the insulating substrate is provided with a first wire receiving groove extending in the front-rear direction, a second wire receiving groove communicating with the rear of the first wire receiving groove, and communicating with a third wire receiving slot behind the second wire receiving slot, the first wire receiving slot and the third wire receiving slot are parallel, and a distance between the third wire receiving slot is smaller than a distance between the first wire receiving slot The wires extend along the first, second, and third wire receiving grooves. The electrical connector of claim 1, wherein the insulating substrate is provided with a first wire receiving groove extending in the front-rear direction, a second wire receiving groove communicating with the rear of the first wire receiving groove, and a communication portion. The third wire receiving slot of the two wire receiving slots is perpendicular to the third wire receiving slot, and the distance between the third wire receiving slots is smaller than the distance between the first wire receiving slots. The wires extend along the first, second, and third wire receiving grooves.