CN207320386U - Socket connector and its socket terminal - Google Patents

Abstract

The utility model relates to a socket connector and socket terminal thereof. The socket connector comprises an insulating shell and at least one socket terminal. The insulating shell is provided with at least one terminal hole; the socket terminal is arranged in at least one terminal hole and comprises a fixing part, a conductive clamping piece and a pair of contact arms; the conductive clamping piece extends backwards along a lengthwise direction from the fixing part, and the pair of contact arms respectively extend forwards from two opposite sides of the fixing part and are opposite to each other; wherein each contact arm comprises an elastic clamping piece, a port part and at least one extending part; the elastic clamping piece extends forwards along the lengthwise direction from the fixing part, the port part is connected to the front end of the elastic clamping piece, and the at least one extending part extends backwards from the inner side of the port part; wherein a part of the elastic clamping piece is bent inwards to form a second contact area, and a part of the port part and the extension part form a first contact area.

Description

Socket connector and its socket terminal

technical field

The utility model relates to a socket connector and a socket terminal thereof, in particular to an electric connector for transmitting electric power, and a socket terminal for conducting electricity, or a female terminal.

Background technique

Electrical connectors are widely used to transmit information or power, and the electrical connectors used to transmit power can also be called power connectors. The power connector can be further divided into a plug-in end and a socket end, or can be called a plug connector and a socket connector.

The plug connector has a plurality of plug terminals, usually in the shape of pins; the inside of the socket connector contains a plurality of socket terminals, and the socket terminals are usually stamped and bent from metal sheets. More and more electronic devices need to plug the plug connector into the socket connector when the power is on. During the process of plugging or disconnecting, the current may be formed by the terminal on one side passing through the air and hitting the terminal on the other side. Electric arc. Arcing can damage the terminals or create residues that affect the ability to conduct electricity.

Utility model content

The technical problem to be solved by the utility model is to provide a socket connector and its socket terminal, which can reduce the damage of the socket terminal due to arc discharge, and further improve the service life of the socket terminal.

In order to solve the above technical problems, according to one solution of the present invention, a socket connector is provided, which includes an insulating housing and at least one socket terminal. The insulating housing has at least one terminal hole; at least one of the socket terminals is installed in at least one of the terminal holes, and the socket terminal has a fixing part, a conductive clip, and a pair of contact arms; the conductive The clamping piece extends rearwardly along a longitudinal direction from the fixing portion, and a pair of contact arms respectively extend forward from two opposite sides of the fixing portion and face each other; wherein each of the contact arms includes an elastic clip holding piece, a port portion, and at least one extending portion; the elastic clamping piece extends forward from the fixing portion along the longitudinal direction, the port portion is connected to the front end of the elastic clamping piece, at least A said extension portion extends backward from the inner side of the port portion; a part of the elastic clamping piece is bent inward to form a second contact area, wherein a part of the port portion forms a first contact with the extension portion Area.

In order to solve the above technical problems, according to one solution of the present invention, a socket terminal is provided, which includes a fixing part, a conductive clip and a pair of contact arms. The conductive clip extends rearwardly from the fixing portion along a longitudinal direction; a pair of contact arms extend forward from two opposite sides of the fixing portion and face each other; each of the contact arms includes An elastic clamping piece, a port portion, and at least one extension portion; the elastic clamping piece extends forward from the fixing portion along the longitudinal direction, and the port portion is connected to the elastic clamping piece At the front end, at least one of the extension parts extends rearwardly from the inner side of the port part; a part of the elastic clamping piece is bent inward to form a second contact area, and a part of the port part is formed with the extension part first contact area.

The utility model has the following beneficial effects: when the utility model is plugged into or disconnected from the socket terminal, if an arc is formed, it only hits the extension part. Therefore, arc discharge damage to the second contact area of the elastic clamping piece can be avoided, and residues such as carbon deposits will not be formed due to arcing.

In order to further understand the technology, method and effect that the utility model adopts to achieve the intended purpose, please refer to the following detailed description and accompanying drawings of the utility model, and believe that the purpose, characteristics and characteristics of the utility model can be obtained from this In-depth and specific understanding, however, the accompanying drawings are only for reference and illustration, and are not intended to limit the utility model.

Description of drawings

FIG. 1 is a perspective view of the socket connector of the present invention.

Fig. 2 is a perspective view of the terminal group of the present invention.

Fig. 3 is a top view of the terminal group of the present invention.

Fig. 4 is a side view of the terminal group of the present invention.

Fig. 5 is a bottom view of the terminal group of the present invention.

Fig. 6 is a front view of the socket terminal of the present invention.

Fig. 7 is a front view of the plug terminal of the present invention after being plugged into the socket terminal.

Detailed ways

Please refer to FIG. 1 and FIG. 2 , which are a perspective view of a socket connector and a perspective view of a terminal group of the present invention. The utility model provides a socket connector 10 which can be connected with a plug connector 20 . The socket connector 10 includes an insulating housing 19 and a plurality of socket terminals 11 . The insulating housing 19 is formed with a plurality of terminal holes 190 , the number of the terminal holes 190 corresponds to the number of the socket terminals 11 , and may be at least one. Rear ends of the socket terminals 11 are respectively connected to a wire C. The plug connector 20 has a plug housing 29 and a plurality of plug terminals 21 . The plug terminal 21 is inserted toward the front end of the socket terminal 11 . The plug terminal 21 is in the shape of a square pin with approximately the same four side lengths W, but the present invention is not limited thereto.

The plurality of socket terminals 11 are correspondingly installed in the plurality of terminal holes 190 . Each socket terminal 11 has a fixing portion 112 , a conductive clip 116 , and a pair of contact arms 111 . The conductive clip 116 extends rearwardly from the fixing portion 112 along a longitudinal direction, and the pair of contact arms 111 respectively extend forward from two opposite sides of the fixing portion 112 and face each other. The front end and rear end set in this embodiment are only for convenience of description, and are not intended to limit the present invention. The longitudinal direction refers to the direction parallel to the front end and rear end of the socket terminal 11 , such as the X-axis direction in FIG. 1 .

The fixing part 112 is approximately a cylindrical shape extending along the above-mentioned longitudinal direction and forms a connecting seam 1120. In addition, the fixing part 112 also includes a pair of fixing fins 1124 oppositely flared outwards from both sides, which facilitates the receptacle terminal 11 is fixed to the terminal hole 190. The conductive clip 116 of this embodiment has a plurality of protruding ribs 1161, and the plurality of protruding ribs 1161 protrude inward from the outer side of the conductive clip 116; wherein two ends of each protruding rib 1161 form a slope 1162, and the slope 1162 An included angle is formed with the inner surface of the conductive clip 116, and the included angle is 10 to 80 degrees. The advantage of this structure is that when the two sides of the conductive clip 116 clamp the wire C inwardly, the two ends of the protruding rib 1161 are prevented from pinching the core wire of the wire C due to the internal bending deformation process of the piece.

The socket terminal 11 further includes a pair of fitting pieces 114 , and the fitting pieces 114 are located between the fixing portion 112 and the conductive clip 116 . The fitting piece 114 helps the socket terminal 11 to be fixed in the insulating housing 19 .

Each contact arm 111 in this embodiment includes an elastic clamping piece 113 , a port portion 115 , and a pair of extension portions 117 . The elastic clamping piece 113 extends forward from the fixing portion 112 along the longitudinal direction, and the port portion 115 is connected to the front end of the elastic clamping piece 113 and is roughly U-shaped or C-shaped. The openings of the two port portions 115 face each other and are located at the frontmost ends of the socket terminals 11 . The extension part 117 extends rearwardly from the inner side of the port part 115; part of the elastic clamping piece 113 is bent inward to form a second contact area 1132, wherein a part of the port part 115 and the extension part 117 form a first contact area. The number of the extension part 117 can be at least one, extending backward from one end of the port part 115 along the lengthwise direction.

Please refer to FIG. 3 to FIG. 5 , which are respectively a top view, a side view and a bottom view of the socket terminal of the present invention. The elastic clip 113 extends obliquely inwardly to form a second contact area 1132 , and then obliquely extends outwardly to connect to the port portion 115 . Viewed from a top view, the elastic clamping piece 113 forms an obtuse angle of about 150 degrees. The extension portion 117 extends beyond the second contact region 1132 , that is, the length of the extension portion 117 beyond the port portion 115 is greater than the distance from the second contact region 1132 to the port portion 115 . The purpose of this design is that when the plug terminal 21 is pulled out to leave the socket terminal 11 , the plug terminal 21 is still in contact with the extension portion 117 when leaving the second contact area 1132 . The plug terminal 21 can contact the extension portion 117 at the front and rear positions of the second contact area 1132 to continuously contact the socket terminal 11 .

Please refer to FIG. 6 and FIG. 7 , FIG. 6 is a front view of the socket terminal of the present invention, and FIG. 7 is a front view of the plug terminal inserted into the socket terminal. Each port portion 115 in this embodiment has an outer frame wall 1151 and a pair of inner folding walls 1152 , and the pair of inner folding walls 1152 are bent inward from two sides of the outer frame wall 1151 . The contact arm 111 has a pair of extensions 117 , and the pair of extensions 117 are respectively connected to a pair of inner folding walls 1152 . As shown in FIG. 7 , the included angle θ between the inner folding wall 1152 and the outer frame wall 1151 is an acute angle, which is about 60 degrees in this embodiment.

The distance W2 between the second contact areas 1132 of the pair of contact arms 111 is smaller than the side length W of the plug terminal 21 . The gap W1 between the pair of inner folded walls 1152 of the port portion 115 is smaller than the side length W of the plug terminal 21 . That is to say, the gap between the extension parts 117 is smaller than the side length W of the plug terminal 21 , and when the plug terminal 21 is inserted into the receptacle terminal 11 , it can be sure to contact the pair of inner folding walls 1152 .

The feature and function of the present utility model are that, during the hot insertion process of the plug connector 20 and the socket connector 10, when the plug terminal 21 is inserted into the socket terminal 11, the plug terminal 21 first contacts the inner folding wall 1152 of the port portion 115, if An arc is formed, striking only the extension 117 . During the insertion process, the extension portion 117 continues to be in contact, and then the second contact area 1132 of the pair of contact arms 111 is contacted. When the plug terminal 21 is pulled away from the receptacle terminal 11 , especially after the plug terminal 21 leaves the second contact area 1132 , the plug terminal 2 is still in contact with the extension portion 117 and finally detached from the port portion 115 . When detaching, if there is an arc, it also hits the extension portion 117 . Therefore, arc discharge damage to the second contact area 1132 of the elastic clamping piece 113 can be avoided, and residues such as carbon deposits are not formed due to the arc. The utility model can reduce the damage of the socket terminal 11 due to arc discharge through the above arrangement, thereby improving the service life of the socket terminal 11 and the socket connector.

It should be noted that words such as "approximately" in this case are used to modify any relationship that can be slightly changed, such as a slight inconsistency caused by factors such as processing tolerances, but such a small change will not change its essence.

The above description is only a preferred feasible embodiment of the utility model, and all equal changes and modifications made according to the patent scope of the utility model shall fall within the scope of the utility model.

Claims (10)

1. A socket connector, characterized in that, comprising: an insulating housing having at least one terminal hole; and At least one socket terminal is installed in at least one of the terminal holes, the socket terminal has a fixed part, a conductive clip, and a pair of contact arms; the conductive clip is extended along a longitudinal direction by the fixed part Extending backward, a pair of contact arms respectively extend forward from two opposite sides of the fixing part and face each other; Each of the contact arms includes an elastic clamping piece, a port portion, and at least one extension portion; the elastic clamping piece extends forward along the longitudinal direction from the fixing portion, and the port portion is connected to At the front end of the elastic clamping piece, at least one of the extension parts extends backward from the inner side of the port portion; part of the elastic clamping piece is bent inward to form a second contact area, wherein the port portion A portion of the extension part forms a first contact area. 2 . The receptacle connector according to claim 1 , wherein the fixing portion is substantially cylindrical and extends along the longitudinal direction and forms a connecting seam. 3 . 3. The receptacle connector according to claim 1, wherein the conductive clip has a plurality of protruding ribs, and a plurality of the protruding ribs protrude inward from the outer side of the conductive clip; wherein each Both ends of the protruding rib each form a slope, and the slope forms an angle with the inner surface of the conductive clip, and the angle is 10 to 80 degrees. 4. The receptacle connector according to claim 1, wherein the receptacle terminal further comprises a pair of fitting pieces, and the pair of fitting pieces are located between the fixing portion and the conductive clip. 5 . The receptacle connector according to claim 1 , wherein the elastic clamping piece extends obliquely inwardly to form the second contact area, and then extends obliquely outwardly to connect to the port portion. 6 . 6. The receptacle connector as claimed in claim 5, wherein each port portion has an outer frame wall and a pair of inner folded walls, and a pair of inner folded walls are connected to the outer frame wall and formed by the Both sides of the outer frame wall are bent inward, wherein the contact arm has a pair of extension parts, and the pair of extension parts are respectively connected to a pair of inner folding walls. 7. The receptacle connector according to claim 6, wherein the extension portion extends beyond the second contact area, and the length of the extension portion beyond the port portion is greater than the second contact area to the The distance between the ports described above. 8. The receptacle connector according to claim 6, wherein the included angle between the inner folding wall and the outer frame wall is an acute angle. 9. The socket connector according to claim 6, wherein the socket connector is docked with a plug connector, and the plug connector includes at least one plug terminal, and the plug terminal is in the shape of a square pin; a pair of The distance between the second contact areas of the contact arms is smaller than the side length of the plug terminals; the gap between the extension parts is smaller than the side length of the plug terminals. 10. A socket terminal, characterized in that it comprises: a fixed part; a conductive clip, the conductive clip extends rearwardly along a longitudinal direction from the fixing portion; and a pair of contact arms extending forward from two opposite sides of the fixing part and facing each other; Each of the contact arms includes an elastic clamping piece, a port portion, and at least one extension portion; the elastic clamping piece extends forward along the longitudinal direction from the fixing portion, and the port portion is connected to At the front end of the elastic clamping piece, at least one of the extensions extends backward from the inner side of the port portion; part of the elastic clamping piece is bent inward to form a second contact area, and a part of the port portion A first contact area is formed with the extension.