CN2766373Y - Electric connector assembly - Google Patents

Abstract

The utility model relates to an electrical connector assembly (10), which is used for electrically connecting two circuit boards, and comprises a first connector (20) and a second connector (30) docked with the first connector. The first connector includes a first insulating body (200) and several first conductive terminals (210) accommodated in the first insulating body, and the second connector includes a second insulating body (300) and a Among them, several second conductive terminals (320) are plugged correspondingly to the first conductive terminals. Both sides of the first insulating body are respectively provided with hooks (220), and both sides of the second insulating body are respectively provided with protruding parts (314) of locking hooks. When the first connector and the second connector are docked, the hooks The stable engagement with the protruding part prevents the first connector from falling off from the second connector and improves the reliability of the electrical connection of the electrical connector assembly.

Description

Electrical Connector Assembly

【Technical field】

The utility model relates to an electrical connector assembly, in particular to a board-to-board electrical connector for electrically connecting two circuit boards.

【Background technique】

In order to achieve stable transmission of data and signals between circuit boards, board-to-board electrical connectors are usually provided with a buckling mechanism on the first connector and the second connector that are docked with each other to increase the connection between the first connector and the second connector. The holding force of the device after docking.

The prior art has disclosed a variety of board-to-board electrical connectors with a locking mechanism. For related patents, please refer to US Patent No. 5,888,077 announced on March 30, 1999 and US Patent No. 5,888,077 announced on May 23, 1999 No. 5,885,093. The board-to-board electrical connector disclosed in the above-mentioned patent includes a first connector and a second connector docked with the first connector. Protrusions are respectively provided on the two ends of the first connector, and the two ends of the second connector The wall is correspondingly provided with a slot for locking the protrusion, and the holding force of the first connector and the second connector after docking is increased by the buckling of the protrusion and the slot, preventing the first connector from facing each other in the docking direction. The second electrical connector generates motion.

However, the board-to-board electrical connector disclosed in the above-mentioned prior art has the following disadvantages: the docking of the first connector and the second connector only depends on the friction between the protrusion of the first connector and the slot of the second connector To maintain, because the surface of the insulating body is smooth and prone to deformation, it is difficult to ensure the holding force between the first connector and the second connector after docking, and the first connector is easy to fall off from the second connector, which affects the board pairing. The reliability of the electrical connection of the board electrical connector.

Therefore, it is necessary to design a new type of board-to-board electrical connector to overcome the above-mentioned shortcomings of the prior art.

【Content of utility model】

The technical problem to be solved by the utility model is to provide an electrical connector assembly with better holding force and reliable electrical connection performance.

In order to solve the above technical problems, the electrical connector assembly of the utility model includes a first connector and a second connector docked with the first connector. The first connector includes a first insulating body and a number of first conductive terminals accommodated in the first insulating body, and the second connector includes a second insulating body and is arranged in the second insulating body to communicate with the corresponding first conductive terminals. A plurality of second conductive terminals for insertion. Both sides of the first insulating body are provided with hooks, and both sides of the second insulating body are correspondingly provided with protrusions for locking the hooks.

Compared with the prior art, the electrical connector assembly of the utility model has the following advantages: hooks are provided on both sides of the first insulating body, and protruding parts of the locking hooks are correspondingly provided on both sides of the second insulating body. When the first connector When docking with the second connector, the hook and the protrusion can be buckled stably, thereby providing better holding force, preventing the first connector from falling off from the second connector, and improving the reliability of the electrical connection of the electrical connector assembly. reliability.

【Description of drawings】

The electrical connector assembly of the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a three-dimensional exploded view of the electrical connector assembly of the present invention;

Fig. 2 is an assembly diagram of the electrical connector assembly shown in Fig. 1;

Fig. 3 is a partial sectional view of the electrical connector assembly shown in Fig. 2;

Fig. 4 is a partial enlarged view of the circle part A in the electrical connector assembly shown in Fig. 3;

Fig. 5 is a cross-sectional view along line B-B of the first connector in the electrical connector assembly shown in Fig. 1;

【Detailed ways】

Please refer to Fig. 1, the electrical connector assembly 10 of the present invention is used to electrically connect two circuit boards (not shown), and it includes a first connector 20 and a second connection docked with the first connector 20 device 30.

The first connector 20 includes a first insulating body 200 , a plurality of first conductive terminals 210 accommodated in the first insulating body 200 , and hooks 220 assembled on two sides of the first insulating body 200 .

The first insulating body 200 is an elongated structure integrally formed of insulating material, which includes bases 202 located on two sides of the first insulating body 200 and a central boss 204 protruding relative to the base 202 . The central boss 204 is provided with a plurality of terminal grooves 206 penetrating through the first insulating body 200 and arranged in a certain manner, and a plurality of first conductive terminals 210 are correspondingly accommodated in the terminal grooves 206 . One end of the first conductive terminal 210 extends out of the mounting surface 208 of the first insulating body 200 to electrically connect the circuit board, and the other end is bifurcated in the terminal slot 206 to form an insertion space for receiving the corresponding second conductive terminal 320 .

Please refer to FIG. 4 and FIG. 5 together. The bases 202 on both sides of the first insulating body 200 are symmetrically provided with hooks 220 extending in the same direction as the central boss 204. The extension distance of the hooks 220 relative to the base 202 is smaller than that of the central boss. 204 relative to the extension distance of the base 202 . The hook 220 is forged from a metal plate with good elasticity, and is fixed in the first insulating body 200 by injection molding, and includes a holding portion 222 and a suspended locking portion 224 extending coplanarly with the holding portion 222 . Two opposite sides of the holding portion 222 are symmetrically provided with a plurality of barbs 223 to hold the hook 220 in the first insulating body 200 more stably. The clamping part 224 is stamped near the free end to form an elastic buckling part 226. One side of the buckling part 226 is connected to the clamping part 224, and the other side is detached from the clamping part 224 and can elastically displace relative to the clamping part 224. . Both sides of the free end of the holding portion 224 are provided with chamfers 228 so that the hook 220 can be smoothly inserted into the corresponding receiving groove 306 on the end wall 304 of the second insulating body 300 .

In other embodiments of the present utility model, the fastening portion 226 can also be formed by bending the free end of the hook 220; in addition, the base 202 of the first insulating body 200 can also be first provided with a holding portion 222 for receiving the hook 220 Then, the hook 220 is inserted into the slot, and the hook 220 is stably held in the first insulating body 200 by means of the interference fit between the holding portion 222 of the hook 220 and the wall of the slot.

Please continue to refer to FIG. 1 , the second connector 30 includes a second insulating body 300 and a plurality of second insulating bodies 300 assembled in the second insulating body 300 to be plugged with corresponding first conductive terminals 210 in the first connector 20 . Conductive terminal 320 .

The second insulating body 300 is integrally formed of insulating material, and includes a bottom wall 302 and a pair of end walls 304 extending from two ends of the bottom wall 302 in the same direction. The extension distance of the end wall 304 relative to the bottom wall 302 is slightly greater than the extension distance of the central boss 204 of the first insulating body 200 relative to the base 202 , and the distance between the inner sides of the end walls 304 is slightly greater than the central boss of the first insulating body 200 204 to ensure smooth docking between the first connector 20 and the second connector 30 . The bottom wall 302 of the second insulating body 300 is provided with a plurality of needle-shaped second conductive terminals 320 penetrating through the bottom wall 302 of the second insulating body 300 , the arrangement of the second conductive terminals 320 and the arrangement of the first conductive terminals 210 Corresponding. One end of the second conductive terminal 320 extends in the same direction as the end wall 304 for plugging with the corresponding first conductive terminal 210 , and the other end extends out of the connection surface 303 of the second insulating housing 300 for electrical connection with the circuit board.

Please refer to FIG. 3 and FIG. 4 , the end wall 304 of the second insulating body 300 has a proper thickness, and the receiving grooves 306 for receiving the hooks 220 are respectively arranged thereon. The accommodating groove 306 extends through the second insulating body 300 along the extension direction of the end wall 304 , and includes an abutment wall 308 , a pair of sidewalls 310 extending parallelly from both ends of the abutment wall 308 , and a pair of sidewalls 310 opposite and connected to the abutment wall 308 . The contact wall 312 of the side wall 310 . The top of the contact wall 312 is provided with a protruding portion 314 protruding from the contact wall 312 to the abutment wall 308. The protruding portion 314 includes a guide surface 3140 from top to bottom, and the end of the guide surface 3140 is parallel to the abutment wall 308 downwards. The extended vertical end surface 3142 and the horizontal bottom surface 3144 extending horizontally from the end of the vertical end surface 3142, the distance between the vertical end surface 3142 and the abutment wall 308 is smaller than the free end of the fastening part 226 and the holding part 224 of the hook 220 in a natural state spacing between.

Referring to Fig. 1, Fig. 2 and Fig. 3, the docking process of the first connector 20 and the second connector 30 of the electrical connector assembly 10 of the present invention will be described below: first, the central boss 204 of the first insulating body 200 is inserted into the second between the two end walls 304 of the insulating body 300 , and slide along the end walls 304 toward the bottom wall 302 of the second insulating body 300 until the first conductive terminal 210 in the first connector 20 starts to contact the second connector 30 When the first insulating body 200 slides to a certain position along the end wall 304, the holding part 224 of the hook 220 starts to abut against the abutting wall 308 of the receiving groove 306, and the hook 220 The chamfer 228 of the fastening part 226 is in contact with the side wall 310 of the receiving groove 306. At this time, the fastening part 226 of the hook 220 is still in a natural state; when the fastening part 226 slides to contact with the vertical end surface 3142, The fastening part 226 is elastically deformed by the extrusion of the vertical end surface 3142 and is gathered toward the holding part 224; finally, when the free end of the fastening part 226 slides over the vertical end surface 3142, the fastening part 226 is elastically deformed by itself Expand toward the direction away from the clamping portion 224 and return to the natural state. At the same time, the first conductive terminal 210 in the first connector 20 and the corresponding second conductive terminal 320 in the second connector 30 are fully inserted.

When the first connector 20 and the second connector 30 are completely docked, the free end of the engaging portion 226 of the hook 220 abuts against the horizontal bottom surface 3144 of the lower end of the protruding portion 314, thereby connecting the first connector 20 and the second connector. The connector 30 is stably locked, which can prevent the first connector 20 from falling off from the second connector 30 and improve the reliability of the electrical connection of the electrical connector assembly 10 .

Claims (7)

1. An electrical connector assembly, which includes a first connector and a second connector docked with the first connector, the first connector includes a first insulating body and several first insulating bodies accommodated in the first insulating body The conductive terminal, the second connector includes a second insulating body and a plurality of second conductive terminals assembled in the second insulating body to be plugged correspondingly with the first conductive terminal, and is characterized in that: the two sides of the first insulating body A hook is provided, and protrusions for locking the hook are correspondingly provided on both sides of the second insulating body. 2 . The electrical connector assembly according to claim 1 , wherein the hook comprises a holding portion and a holding portion extending coplanarly with the holding portion, and the holding portion is provided with an elastic fastening portion. 3 . 3. The electrical connector assembly according to claim 2, wherein the buckling part is stamped and formed near the free end of the holding part, one side of which is connected to the holding part, and the other side is formed from the holding part. break away. 4. The electrical connector assembly according to claim 2 or 3, wherein a plurality of barbs are symmetrically provided on both sides of the hook holding portion. 5. The electrical connector assembly according to claim 1, wherein the first insulating body comprises bases located on both sides of the first insulating body and a central boss protruding relative to the base, and the second insulating body comprises a bottom wall and the end walls extending in the same direction from both ends of the bottom wall, the end walls are respectively provided with receiving grooves, the hooks extend in the same direction from the base and the central boss, and the protrusions are correspondingly arranged on the top of the receiving grooves. 6 . The electrical connector assembly according to claim 5 , wherein the receiving groove extends through the second insulating body along the extending direction of the end wall. 7. The electrical connector assembly according to claim 5, wherein the extending distance of the hook relative to the base is smaller than the extending distance of the central boss relative to the base.

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