TWM458688U - Conductive terminal and electrical connector - Google Patents

Abstract

The utility model provides a conductive terminal and an electric connector. The electric connector comprises an insulating shell and a plurality of conductive terminals fixedly arranged on the insulating shell. Each conductive terminal comprises a base part, a bent part bent and extending from the base part, an elastic arm extending from the bent part, a contact part formed at the tail end of the elastic arm, a first welding pin extending from the base part, and a second welding pin extending from the bent part.

Description

Conductive terminal and electrical connector

The present invention relates to a conductive terminal and an electrical connector.

Referring to FIG. 1 , a terminal 9 disclosed in Taiwan Patent Publication No. 461640 (continental patent corresponding CN01202442.2; US patent corresponding publication No. US2002/0048999A1) mainly includes a fixing to the insulating housing 8 and opening a rectangle. The base portion 91 of the hole 911, a resilient contact arm 92, a connecting base portion 91 and a curved portion 93 of the resilient contact arm 92, and two welded portions 94. The two welded portions 94 are horizontally extended obliquely downward from the base portion 91 in opposite directions, one of which is located in the rectangular hole 911, and the other of which is located at one end of the base portion 91 opposite to the curved portion 93.

The terminal 9 disclosed in the aforementioned patent has two welded portions 94 extending from the base portion 91, and the strength of the terminal 9 welded to the circuit substrate (not shown) can be increased. However, when the elastic contact arm 92 of the terminal 9 is elastically deformed downward, the most important stress concentration is at the curved portion 93, and the base portion 91 generates a rotational moment with respect to the curved portion 93. Since both of the welded portions 94 are located on the base portion 91, it is susceptible to the problem of separation or cracking from the base portion 91 due to the action of the rotational moment.

Therefore, it is an object of the present invention to provide a conductive terminal that can disperse stress to reduce the rotational torque.

Another object of the present invention is to provide an electrical connector having the aforementioned conductive terminals.

Thus, the novel electrical connector includes an insulative housing and a plurality of fixed a conductive terminal of the insulative housing. Each of the conductive terminals includes a base portion, a curved portion extending from the base portion, a resilient arm extending from the curved portion, a contact portion formed at an end of the elastic arm, and a first soldering leg extending from the base portion. And a second soldering leg extending from the bent portion.

Wherein, the first soldering leg extends from the base opposite to one end of the curved portion and is bent below the base, and the second soldering leg is bent below the base.

The first soldering leg and the second soldering leg are bent toward each other.

The effect of the novel: the conductive terminal is extended downward from the curved portion by the second welding leg, which can strengthen the material strength at the stress concentration and disperse the stress to reduce the rotational moment to the base and increase the service life of the conductive terminal.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to FIGS. 2 through 4, a preferred embodiment of the present electrical connector 100 is adapted to be mounted on a circuit substrate 200 to form an electrical connection with the circuit substrate 200. In the present embodiment, the circuit substrate 200 is a printed circuit board having a plurality of solder pads 201 on its surface.

Referring to FIGS. 5-7, the electrical connector 100 of the present embodiment includes an insulative housing 1 and a plurality of conductive terminals 2. The insulating housing 1 has a top surface 11, a bottom surface 12, a front end surface 13, a rear end surface 14, and a plurality of spaced-apart terminal slots. 15. Each of the terminal slots 15 has a main body portion 151 penetrating through the top surface 11 and communicating the front end surface 13 and the rear end surface 14 forward and backward, a first bottom receiving portion 152 recessed from the bottom surface 12 and adjacent to the front end surface 13, and a bottom surface 12 is recessed and adjacent to the second bottom receiving portion 153 of the rear end surface 14. The first bottom accommodating portion 152 communicates with the front end surface 13 , and the second bottom accommodating portion 153 communicates with the main body portion 151 and penetrates the bottom surface 12 and extends along the same straight line L with the first bottom accommodating portion 152 .

The conductive terminals 2 are fixed to the insulating housing 1 and are respectively received in the terminal slots 15 . Referring to FIG. 8 to FIG. 12, each of the conductive terminals 2 includes a base portion 21, a curved portion 22 extending from the base portion 21 in a C-shape, a resilient arm 23 extending from the curved portion 22, and an end formed at the end of the elastic arm 23. The contact portion 24, a first solder leg 25 extending from the base portion 21, and a second solder leg 26 extending from the bent portion 22. The base portion 21 and the bent portion 22 are housed in the main body portion 151 of the terminal groove 15, and the base portion 21 has a plurality of spurs 211 projecting from both sides to interfere with the insulating housing 1. The resilient arm 23 extends from the body portion 151 beyond the top surface 11 such that the contact portion 24 rises above the top surface 11. The first soldering leg 25 extends from the base 21 opposite to one end of the curved portion 22 and is bent below the base portion 21 and is received in the first bottom receiving portion 152 of the terminal groove 15. The second soldering leg 26 is bent below the base portion 21 and bent toward the other side with the first soldering leg 25 and received in the second bottom receiving portion 153 of the terminal slot 15 . The second soldering leg 26 is punched out by the partial curved portion 22 and the base portion 21, and has a root portion 261 connecting the curved portion 22, a leg portion 262 extending downward from the root portion 261, and a soldering bent below the base portion 21. Department 263. In this embodiment, the two sides of the second soldering leg 26 are punched out of the groove 27 (see FIG. 10) and then bent. In another embodiment, referring to FIG. 13 and FIG. 14, the second soldering leg 26 can also be bent and bent. form.

Referring back to FIGS. 2 to 4 , the first soldering leg 25 and the second soldering leg 26 respectively correspond to the solder pads 201 soldered to the circuit substrate 200 , whereby the solder holding strength and the strength of the conductive terminals 2 can be increased. Moreover, when the contact portion 24 of the conductive terminal 2 is pressed, the stress concentrates on the curved portion 22, and the second soldering leg 26 extends downward from the curved portion 22, thereby enhancing the strength of the material at the stress concentration and The stress is dispersed to reduce the rotational moment to the base 21.

In addition, referring to FIG. 15 and FIG. 16, the circuit substrate 200 may also be a flexible circuit board (FPC) having a soldering line 202 for soldering each of the conductive terminals 2 on its surface.

In summary, the conductive terminal 2 of the present embodiment is formed by extending the second soldering leg 26 downward from the curved portion 22, which can further strengthen the material strength at the stress concentration and disperse the stress to reduce the rotation of the base portion 21. The torque increases the service life of the conductive terminal 2.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent.

100‧‧‧Electrical connector

2‧‧‧Electrical terminals

200‧‧‧ circuit substrate

21‧‧‧ base

201‧‧‧ solder pad

211‧‧‧ thorn

202‧‧‧ welding line

22‧‧‧Bend

1‧‧‧Insulated housing

23‧‧‧Flexible arm

11‧‧‧ top surface

24‧‧‧Contacts

12‧‧‧ bottom

25‧‧‧First soldering feet

13‧‧‧ front end

26‧‧‧Second welding feet

14‧‧‧ rear end face

261‧‧‧ root

15‧‧‧Terminal slot

262‧‧‧ feet

151‧‧‧ Main body

263‧‧‧Weld Department

152‧‧‧First bottom accommodation

27‧‧‧ trench

153‧‧‧ Second bottom accommodation

1 is an exploded perspective view showing a conductive terminal of a conventional electrical connector; and FIG. 2 is a perspective view showing a combined relationship between a preferred embodiment of the present invention and a circuit board; 3 is a perspective view of FIG. 2; FIG. 4 is a perspective view showing the corresponding relationship between the preferred embodiment and the circuit substrate; FIG. 5 is a perspective view showing the soldering leg of the conductive terminal of the preferred embodiment; FIG. 7 is another perspective view of FIG. 6; FIG. 8 is a perspective view illustrating the conductive terminal of the preferred embodiment; Figure 9 is a side view of Figure 8; Figure 10 is a rear view of Figure 9; Figure 11 is a plan view of Figure 2; Figure 12 is a cross-sectional view taken along line XII-XII of Figure 11, illustrating the preferred Figure 13 is a perspective view showing another embodiment of the conductive terminal of the preferred embodiment; Figure 14 is a rear view of Figure 13; Figure 15 is a perspective view of the conductive terminal of the embodiment and the insulating case and the circuit board; It is a perspective view showing the combination relationship between the preferred embodiment and the flexible circuit substrate; and FIG. 16 is a perspective view showing the correspondence between the preferred embodiment and the flexible circuit substrate.

2‧‧‧Electrical terminals

21‧‧‧ base

211‧‧‧ thorn

22‧‧‧Bend

23‧‧‧Flexible arm

24‧‧‧Contacts

25‧‧‧First soldering feet

26‧‧‧Second welding feet

261‧‧‧ root

262‧‧‧ feet

263‧‧‧Weld Department

Claims (10)

A conductive terminal comprising: a base; a bent portion extending from the base; a resilient arm extending from the bent portion; a contact portion formed at the end of the resilient arm; and a first soldering leg extending from the base And a second soldering leg extending from the bent portion. The conductive terminal according to claim 1, wherein the first soldering leg extends from the base opposite to one end of the curved portion and is bent below the base, and the second soldering leg is bent below the base . The conductive terminal according to claim 2, wherein the first soldering leg and the second soldering leg are bent toward each other. The conductive terminal according to any one of claims 1 to 3, wherein the second soldering leg is punched out by a portion of the bent portion and the base portion, and has a root portion connecting the bent portion, a leg extending downward from the root and a welded portion bent below the base. An electrical connector includes: an insulative housing; and a plurality of conductive terminals fixed to the insulative housing, each of the conductive terminals includes a base portion, a bent portion extending from the base portion, and a resilient arm The bend extends, A contact portion is formed at an end of the elastic arm, a first soldering leg extending from the base portion, and a second soldering leg extending from the bent portion. The electrical connector of claim 5, wherein the first soldering leg extends from the base opposite one end of the curved portion and is bent below the base, and the second soldering leg is bent to the base Below. The electrical connector of claim 6, wherein the first soldering leg and the second soldering leg are bent toward each other. The electrical connector of claim 6, wherein the second soldering leg is punched out by the portion of the bent portion and the base portion, and has a root portion connecting the bent portion and a lower portion extending from the root portion The foot and a weld that is bent below the base. The electrical connector of any one of clauses 6 to 8, wherein the insulative housing has a top surface, a bottom surface, a front end surface, a rear end surface, and a plurality of spaced-apart terminal slots. Each of the terminal slots has a body portion extending through the top surface and communicating the front end surface and the rear end surface forward and backward, a first bottom receiving portion recessed from the bottom surface and adjacent to the front end surface, and a recessed surface of the bottom surface And the second bottom receiving portion is adjacent to the rear end surface; the conductive terminals are respectively received in the terminal slots, and the elastic arms of each of the conductive terminals protrude from the top surface, and the first soldering leg is disposed in the first soldering leg a bottom receiving portion, the second soldering leg is received in the second bottom receiving portion. The electrical connector of claim 9, wherein the second bottom receiving portion of each of the terminal slots communicates with the main body portion and extends through the bottom surface and extends in line with the first bottom receiving portion.