CN201142383Y - electrical connector - Google Patents

Abstract

The utility model discloses an electric connector, which is used for electrically connecting a chip module to a circuit board. It includes an insulating body, a number of conductive terminals accommodated in the insulating body, a holding frame framed on the periphery of the insulating body, and a pressure plate and a lever pivotally connected to the side of the holding frame, wherein the insulating body is provided with a base and upward from the base The extended side wall is provided with a groove in the horizontal direction, and the shape of the groove can be changed and the volume can be reduced when the pressure plate presses down on the top of the side wall of the insulating body. The electrical connector can well prevent the risk of warping of the insulating body when the pressing plates are fastened together.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector for electrically connecting a chip module to a circuit board.

【Background technique】

Electrical connectors are widely used in the electronic field to electrically connect chip modules and circuit boards. Figure 1 discloses an electrical connector 100' related to the present utility model, which includes an insulating body 1', a holding frame 2' framed on the side of the insulating body 1', and a rotatable and pivotally connected end of the holding frame 2'. The pressing plate 3' and the lever 4' are pivotally connected to the other end of the holding frame 2' and can press the pressing plate 3' on the insulating body 1'. The holding frame 2' includes a main body 21' and two opposite side walls 22', 23' extending upward from the two opposite outer edges of the main body 21', and the side wall 22' is provided with a holding lever 4' The hook 24'. The insulating body 1' is installed on the holding frame 2', the insulating body 1' is provided with a number of receiving holes (not shown), and a number of conductive terminals (not shown) are placed in the receiving holes. The pressure plate 3' is generally in the shape of a square hollow frame, which includes a hollow main plate 31' and side plates 32', 33' extending from both sides of the main plate 31' to the insulating body 1', and the side plates 32', The distance between the outer sides of 33' is equal to the distance between the inner sides of the corresponding sidewalls 22', 23' of the holding frame 2'. The lever 4' includes a holding part 41' pivotally connected to the holding frame 2' and an operating arm 42' extending vertically from the end of the holding part 41', wherein the holding part 41' can be pressed against one end of the pressing plate 3' to push the chip The module (not shown) and the insulating body 1' are fixed between the holding frame 2' and the pressing plate 3'. The insulating body 1' is provided with side walls, and the side walls 11', 12' parallel to the sides of the holding frame 2' pivotally connected to the pressure plate 3' and the lever 4' are provided with notches 13' for easy removal of the chip module , 14'.

When in use, first rotate the pressing plate 3' to the open position, install the chip module on the insulating body 1', then close the pressing plate 3' to the horizontal position, and finally move the lever 4' to make it rotate and clamp on the holding frame 2 The hook 24' on the 'side wall 22', so as to hold the chip module between the pressing plate 3' and the insulating body 1'.

However, when this kind of electrical connector 100' presses the chip module and the insulating body 1' by the pressure plate 3', the insulating body 1' will warp from the middle upward due to the unbalanced force on the outer wall of the insulating body 1' , thus affecting the communication between the chip module and the circuit board.

In view of this, it is necessary to provide an improved electrical connector to overcome the above-mentioned defects of the electrical connector.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector which can ensure the force balance of the insulating body and prevent warping.

The purpose of this utility model is achieved as follows: an electrical connector for electrically connecting a chip module to a circuit board, which includes an insulating body, a number of conductive terminals accommodated in the insulating body, and a frame set on the periphery of the insulating body The holding frame and the pressure plate and the lever pivotally connected to the side of the holding frame, wherein the insulating body is provided with a base and a side wall extending upward from the base, wherein a groove is opened on the side wall in the horizontal direction, and the groove can be placed under the pressure plate. The shape changes and the volume becomes smaller during the process of pressing the top of the side wall of the insulating body.

Compared with the prior art, the beneficial effect of the utility model is: through the groove provided on the side wall of the insulating body, the pressure plate is in flexible contact with the insulating body, and the two ends of the insulating body can be balanced in force, which can well prevent Risk of warping the insulating body when the pressure plates are snapped together.

【Description of drawings】

Fig. 1 is a three-dimensional exploded view of an electrical connector related to the present invention.

Fig. 2 is a three-dimensional assembled view of the electrical connector of the present invention, in which the pressing plate is not fully engaged.

Fig. 3 is a three-dimensional exploded view of the electrical connector of the present invention.

【Detailed ways】

As shown in Figure 2 and Figure 3, the electrical connector 100 of the present invention is used to electrically connect the chip module (not shown) and the circuit board (not shown), which includes an insulating body 1, which is accommodated in the insulating body 1, a number of conductive terminals (not shown), a holding frame 2 framed on the periphery of the insulating body 1, and a pressure plate 3 and a lever 4 pivotally connected to both sides of the holding frame 2.

The insulative body 1 is substantially rectangular flat-shaped structure, which is provided with a base 10 and four sidewalls extending upward from the base 10 , and a plurality of terminal receiving grooves (not shown) are provided on the base 10 for accommodating conductive terminals. The central part of the side wall 11 parallel to the sides of the insulating body 1 and the holding frame 2 pivotally connected to the pressure plate 3 and the lever 4 is provided with a notch 12 for easy removal of the chip module. The side wall 11 is provided with a pair of grooves 13 horizontally penetrating the side wall 11 from both ends of the gap 12, so that the pair of grooves 13 communicate with the gap 12 and the inner and outer surfaces of the side wall 11 respectively, so that the side wall 11 The upper part forms an elastic support wall 14 .

The holding frame 2 is roughly flat, and is provided with a main body 20 and a pivot joint 21 extending upward from opposite side edges of the main body 20 to pivotally connect the pressure plate 3 and a receiving portion 22 for accommodating the lever 4. The center of the main body 20 is A central hole 23 is provided for accommodating the insulating body 11 . The holding frame 2 is further provided with a first baffle 24 and a second baffle 25 connecting the pivotal portion 21 and the receiving portion 22 . The pivoting portion 21 is provided with engaging slots 26 for pivotally connecting the pressing plate 3 and spaced at a certain distance. The receiving portion 22 is bent to form a channel pivotally connected to the driving rod 4 , and the first baffle 24 is provided with a hook 27 for holding the driving rod 4 .

The pressure plate 3 is generally in the shape of a rectangular hollow frame, which includes a hollow main body plate 30 and side plates 31 extending from both sides of the main body plate 30 to the insulating body 1. The clamping portion 32 and the tongue portion 33 pressed against the lever 4, wherein the clamping portion 32 is provided with two upwardly curved arc-shaped buckling portions 34 extending outward from its side edge, the two buckling A strip-shaped positioning portion 35 extending outward from a side edge of the holding portion 32 is disposed between the portions 34 .

The lever 4 is formed by bending a metal rod, and includes a holding portion 40 pivotally connected to the holding frame 2 and an operating rod 41 vertically extending from the end of the holding portion 40 . The retaining portion 40 has a pressing portion 42 in its middle that can be engaged with the tongue portion 33 of the pressing plate 3 , and the operating rod 41 has a handle 43 that is bent outwards at the end.

The process of assembling the electrical connector 100 of the present utility model is as follows: first, put the insulating body 1 into the middle hole 23 of the holding frame 2, and fix the two relative to each other; 34 is assembled into the slot 26 of the pivotal part 21 of the holding frame 2, so that the pressure plate 3 can rotate around the pivotal part 21 of the holding frame 2; after that, the holding part 40 of the driving lever 4 passes through the receiving part 22 of the holding frame 2 In the formed pivotal channel, the lever 4 can also rotate around the receiving portion 22 of the holding frame 2 when the operating lever 41 is toggled.

After the chip module is placed on the insulating body 1, first rotate the pressure plate 3 so that the main plate 30 and the side plate 31 of the pressure plate 3 are pressed against the periphery of the chip module, and then rotate the lever 4 until the pressing part 42 touches the pressure plate 3 on the tongue 33, and finally clamp the end of the operating rod 41 of the driving lever 4 on the hook 27 of the holding frame 2, so that the pressing plate 3 is pressed by the driving lever 4, and the pressing plate 3 further presses the chip module And it is in flexible contact with the supporting wall 14 of the insulating body 1, and the chip module is positioned accordingly. When the chip module needs to be disassembled, the operating lever 41 is released from the hook 27 through the handle 43 of the lever 14 and rotated to the opposite position, and then the positioning part 35 at the tail of the pressing plate 3 is pressed to open the pressing plate smoothly 3. Take out the chip module.

It can be seen from the above description that the electrical connector 100 provides a groove 13 on the side wall 11 of the insulating body 1 , and further forms a supporting wall 14 on the top of the side wall 11 , so that the pressure plate 3 and the insulating body 1 are in flexible contact. When the pressing plate 3 was pressed down, it would conflict with the supporting wall 14, and the supporting wall 14 caused its free end to rotate around its fixed end due to the downward pressure of the pressing plate 3. is trapezoidal. The above structure balances the overall stress of the insulating body 1 and can effectively prevent the risk of warping of the insulating body 1 when the pressing plate 3 is fastened.

Claims (8)

1. An electrical connector for electrically connecting a chip module to a circuit board, which includes an insulating body, a plurality of conductive terminals accommodated in the insulating body, a holding frame framed on the periphery of the insulating body and pivotally connected to the holding The pressure plate and the lever on the side of the frame, wherein the insulating body is provided with a base and a side wall extending upward from the base; it is characterized in that a groove is opened in the horizontal direction of the side wall, and the groove can press the insulating body under the pressure plate The shape changes and the volume becomes smaller during the top of the sidewall. 2. The electrical connector according to claim 1, wherein the groove horizontally runs through the side wall to form a through groove, so that an elastic support wall is formed on the upper part of the side wall, and the pressure plate is in contact with the support wall when it is pressed down. Interference thereby denting the support wall downward. 3. The electrical connector according to claim 1 or 2, wherein the groove is opened in the middle part of the side wall of the insulating body parallel to the sides of the holding frame pivotally connecting the pressure plate and the lever. 4. The electrical connector according to claim 3, characterized in that: the middle part of the side wall parallel to the sides of the insulating body and the holding frame pivotally connecting the pressure plate and the lever is provided with a gap for easy removal of the chip module. The groove is divided into two sections, and the groove is located on both sides of the notch. 5 . The electrical connector according to claim 4 , wherein the notch has a trapezoidal cross-section and partially penetrates through the base body obliquely downward. 6 . 6 . The electrical connector as claimed in claim 1 , wherein the retaining frame is provided with a main body, a pivot joint extending upward from a side of the main body to pivotally connect the pressure plate, and a receiving portion for accommodating the toggle member. 7 . 7. The electrical connector according to claim 6, characterized in that: one end of the pressing plate pivotally connected to the holding frame is provided with a clamping portion that is clamped with the pivoting portion, and the other end is provided with a lever for pressing together of the tongue. 8. The electrical connector according to claim 1, wherein the lever comprises a holding portion pivotally connected to the holding frame, and an operating rod vertically extending from an end of the holding portion.

Images