CN201029113Y - electrical connector - Google Patents

Abstract

The utility model discloses an electrical connector, which includes a first connector and a second connector. The first connector includes a first insulating body, a plurality of first conductive terminals, and a first fixing piece with a first buckle portion. The second connector includes a second insulating body, a plurality of second conductive terminals, and a second fixing member. The second fixing member includes a base, wings at both ends of the base, and an elastic arm extending outward from the middle of the base. The elastic arm There is a second buckle part which is mutually buckled with the first buckle part, and the elastic buckle arm can enhance the docking force when the first and second fixing parts are docked.

Description

electrical connector

【Technical field】

The utility model discloses an electric connector, in particular to an electric connector which can effectively enhance butt joint force and is simpler to manufacture.

【Background technique】

At present, people widely use a board-to-board electrical connector to connect two circuit boards to realize signal transmission. The board-to-board electrical connector related to the prior art related to the utility model usually has a plug and a socket , the plug and the socket are provided with sheet-shaped fixing parts, and the fixing parts are respectively provided with docking parts with buckle parts, and the plug and the socket are docked and buckled through the buckle parts provided on the docking parts of the fixing parts. The docking force between the plug and the socket in the above-mentioned electrical connector is only formed by the buckle part of the socket fixing part pressing the plug fixing part to cause a certain elastic deformation of the butt joint part of the plug fixing part. With the continuous improvement of safety requirements, sufficient elastic holding force is required to ensure the stability of the docking. However, the elastic force is too small to meet the demand. Secondly, during the docking process, if the docking is inaccurate or the force is improper, it is easy to cause the two to be fixed. Physical damage to the butt joints of the parts may cause permanent bending damage to the butt joints. At the same time, since the fixing parts are assembled on the body, the holding relationship between the fixing parts and the body may become unstable and cause falling off.

There is another board-to-board electrical connector. The plug and the socket are not provided with fixing parts, but the interlocking bumps and notches are respectively provided in the insulating body to realize the buckling between each other. Fitting, this kind of electrical connector that relies on the interlocking of the bumps and notches to achieve retention. The bumps and notches are made of plastic materials. If the buckling force is strong, it is not easy to plug in and out, and after many It is easy to wear and tear after plugging and unplugging; if it is set to be easy to plug and unplug, its buckling force will be insufficient, thereby affecting the docking performance between the plug and the socket. Therefore, there is a need for an improved electrical connector to overcome the above drawbacks.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector that can effectively enhance the butt joint force.

In order to achieve the above object, the utility model adopts the following technical solution: an electrical connector, which includes a first connector and a second connector docked with the first connector, the first connector includes a first insulating body, and is housed in A plurality of first conductive terminals in the first insulating body and a first fixing part provided with a first buckle part, the second connector includes a second insulating body, a plurality of second conductive terminals and a first fixed part accommodated in the second insulating body Two fixing parts, the second fixing part includes a base, wings at both ends of the base and an elastic arm extending outward from the middle of the base, the elastic arm is provided with a second buckle that is interlocked with the first buckle part department.

Compared with the prior art, the electric connector of the present utility model is provided with an elastic arm on the second fixing part, so that the first buckle part of the first fixing part is buckled with the second buckle part of the second fixing part. When they are closed, elastic butt joint is formed, and a sufficient butt joint force is provided in the fastening direction to ensure a stable fit between the two connectors.

【Description of drawings】

Fig. 1 is a perspective view of the electrical connector of the present invention before assembly.

FIG. 2 is a partially exploded perspective view of the first connector of the electrical connector of the present invention.

3 is a partially exploded perspective view of the second connector of the electrical connector of the present invention.

FIG. 4 is a perspective view of the assembled electrical connector of the present invention shown in FIG. 1 .

Fig. 5 is a sectional view of the electric connector of the present invention shown in Fig. 4 along line A-A.

【Detailed ways】

Referring to FIG. 1 , the present invention provides an electrical connector, which includes a first connector 10 and a second connector 20 , which are paired with each other and respectively fixed on a circuit board (not shown).

2 to 5, the first connector 10 includes a first insulating body 11, a number of first conductive terminals 12 accommodated in the first insulating body 11, a pair of first fixing parts 13 and a number of L-shaped plugs. slice 14. The first insulating body 11 is a longitudinally long insulating body, which is provided with an annular peripheral wall, which is composed of a pair of longitudinal side walls 111, a pair of transverse end walls 112 and a bottom wall. There are a number of receiving holes 114 through the upper and lower surfaces of the side wall 111, and a slot 117 is respectively provided on the side wall 111 close to the two end walls 112, and a groove 118 is respectively provided in the middle of the two lateral end walls 112 , the center of the above-mentioned annular peripheral wall is provided with a protruding platform 113 protruding upward from the bottom of the first insulating body 11, and a plurality of first grooves 116 are opened on the two side walls of the protruding platform 113 for accommodating the first conductive Terminal 12, the raised platform portion 113 and the annular peripheral wall form a receiving portion 115, the receiving portion 115 communicates with the first channel 116, and the junction of the receiving portion 115 and a pair of transverse end walls 112 is respectively provided with a longitudinally penetrating second A receiving groove 119 of the insulating body 11 is used for receiving the first fixing member 13 .

The first conductive terminal 12 includes a main body 120, a connecting arm 121 extending horizontally from the main body 120, a butt joint 122 extending upward from the end of the connecting arm 121, an interference part 123 and a welding part 124. The interference part 123 is formed by the main body 120. Extending upwards, the welding portion 124 extends from the main body 120 to the first insulating body 11 for welding with the circuit board, wherein the main body 120 and the connecting arm 121 are horizontally arranged, and the connecting arm 121 is used to connect the main body 120 and the circuit board. The docking portion 122 is accommodated in the first channel 116 on the two side walls of the boss portion 113, and a contact protrusion 125 is provided at its free tail end, and the interference portion 123 is accommodated in the longitudinal side wall of the first insulating body 11 Inside the receiving hole 114 on 111 , there are protrusions on both sides thereof for interfering with the inner wall of the receiving hole 114 for holding.

The first fixing part 13 is arranged in the receiving groove 119, and it includes two symmetrical plate body parts 131, a connecting part 132 connecting the two plate body parts 131, and a bending part 133 bent backward from the connecting part 132. And the notch 134 formed by the above-mentioned plate body portion 131 and the connecting portion 132, wherein the plate body portion 131 is inserted in the receiving groove 119, and protruding thorns 135 are provided on both sides for holding with the inner wall of the receiving groove 119 , the curved portion 133 is placed in the groove 118, and the notch 134 forms a first buckle portion; the L-shaped insert 14 includes a vertical surface 141 and a bottom plane 142, wherein the vertical surface 141 is inserted into It is disposed in the slot 117 and has a plurality of protrusions 143 for fixing with the inner wall of the slot 117 . The bottom plane 142 extends out of the first insulating body 11 for soldering on the circuit board.

Referring to FIG. 3 and FIG. 5 , the second connector 20 includes a second insulating body 21 , a second conductive terminal 22 and a second fixing member 23 accommodated in the second insulating body 21 . The second insulating body 21 is a longitudinally long insulating body having two opposite side walls 211 and two opposite end walls 212, the side walls 211 and the end walls 212 enclose a receiving space 213, the side walls 211 The inner surface is provided with a number of second slots (not shown) arranged along the longitudinal direction of the insulating body 21, and the side wall 211 is provided with a number of through holes 214 corresponding to the second slots and passing through the inner and outer surfaces of the side wall 211. The two end walls 212 are respectively provided with a U-shaped recessed portion 215 for accommodating the second fixing member 23 , and the recessed portion 215 is provided with a through hole 216 penetrating through the second insulating body 21 .

The second conductive terminal 22 is integrally injection-molded with the second insulating body 21. The second conductive terminal 22 is roughly "L"-shaped, and includes a horizontal portion 221 and a vertical portion 222. The horizontal portion 221 is provided with a Welding feet (not labeled), the welding feet extend out of the second insulating body 21 to be welded with the circuit board, the vertical portion 222 has a wider width than the horizontal portion 221, and it is accommodated in the second groove on the inner surface of the side wall 211 In the channel, it is used to contact with the butt joint portion 122 of the first conductive terminal 12 .

The second fixing part 23 is placed on the recessed part 215, and is integrally injection molded with the second insulating body 21, which includes a base part 231, two wing parts 232 extending from both ends of the base part 231 and an elastic arm extending from the base part 231 (not labeled), wherein the two ends of the wings 232 are bent and extended downwards to form a welding end (not labeled) extending from the bottom of the side wall 211 to the second insulating body 21 for welding with the circuit board, the elastic The arm includes a first bent arm 233 bent downward from the middle of the base 231, a second bent arm 234 bent upward from the end of the first bent arm 233 and connecting the first and second bent arms. 233,234, the second bending arm is provided with a contact surface 235, and the contact surface 235 is provided with a contact bump 236 forming the second buckle part, which is used to connect with the first fixing member 13 The notch 134 on the butt joint and buckle.

The first connector 10 and the second connector 20 are respectively provided with a first fixing part 13 and a second fixing part 23. When the first connector 10 and the second connector 20 are assembled, the first fixing part 13 and the second The fixing member 23 is butted against each other. Please refer to FIGS. The wall 211 and two opposite end walls 212 are accommodated in the receiving portion 115 of the first connector 10, the first conductive terminal 12 and the second conductive terminal 22 are in electrical contact with each other, the first fixing member 13 and the second fixing member 23 The elastic buckle is realized through the notch 134 provided on it and the convex point 236 on the elastic arm. In this way, the butt force during the docking process of the first and second electrical connectors is enhanced, thereby ensuring that the first and second electrical connectors a solid connection.

Claims (10)

1. electric connector, it comprises first connector and second connector that docks with first connector, first connector comprises first insulating body, be contained in some first conducting terminals in first insulating body and be provided with first fixture of first clamping part, second connector comprises second insulating body, is contained in some second conducting terminals and second fixture in second insulating body, it is characterized in that: described second fixture comprises elastic arm, and this elastic arm is provided with second clamping part with the mutual buckle of first clamping part.

2. electric connector as claimed in claim 1 is characterized in that: described second fixture also comprises the alar part at base portion and base portion two ends, and described elastic arm is provided with the contact salient point that forms second clamping part.

3. electric connector as claimed in claim 2 is characterized in that: described elastic arm comprises that downward first bent over arms of extending that bends reaches second bent over arms that upwards bends extension from this first bent over arms from the base portion middle part.

4. as each described electric connector of claim 1-3, it is characterized in that: described first fixture comprise two symmetries board body part, connect the connecting portion of this two boards body, this connecting portion recess of bending the bend of extension backward and forming by above-mentioned board body part and connecting portion certainly, this recess forms first clamping part.

5. electric connector as claimed in claim 4 is characterized in that: described first insulating body comprises a pair of longitudinal side wall and a pair of transverse end wall, is provided with respectively at the end walls place to run through first insulating body in order to accommodate the accepting groove of first fixture.

6. electric connector as claimed in claim 5 is characterized in that: be respectively equipped with a depressed part on described each transverse end wall, the bend of described first fixture is housed in this depressed part.

7. electric connector as claimed in claim 5 is characterized in that: described first connector also comprises some L type inserted sheets with protruding thorn, and described each longitudinal side wall is being provided with the slot of accommodating described inserted sheet respectively near the end walls place.

8. as each described electric connector of claim 1-3, it is characterized in that: described first conducting terminal has the docking section of extending to the first insulating body inner bending, and the free tail end of described docking section is provided with the protruding thorn of contact.

9. as each described electric connector of claim 1-3, it is characterized in that: described second insulating body comprises two opposite side walls and accommodates two opposite end walls of described second fixture.

10. as each described electric connector of claim 1-3, it is characterized in that: described second conducting terminal is the L type, it comprises a horizontal part and a vertical portion, described vertical portion has the width wideer than horizontal part, and described second fixture, second conducting terminal and second insulating body are integrated injection molding.

Images