CN2736968Y - Electric connector - Google Patents

Abstract

The utility model relates to an electrical connector for connecting a chip module and a circuit board, which comprises an insulating body provided with a plurality of terminal holes, a plurality of conductive terminals accommodated in the terminal holes of the insulating body, and a lock arranged on the insulating body. The locking device and the driving body that can drive the locking device. The driving body can drive the locking device to move between the open position where the chip module can be taken and placed and the closed position where the chip module can be locked. The solder ball, the conductive terminal is provided with a clamping portion connected to the solder ball and a pin that can be inserted into the circuit board, and the clamping portion of the conductive terminal clamps the solder ball to limit the displacement of the chip module in the first horizontal direction. It is characterized in that: the insulating body is provided with a plurality of protruding parts that abut against the solder balls to limit the displacement of the chip module in the second horizontal direction perpendicular to the first horizontal direction, so that the chip can be moved by means of the solder balls and protruding parts of the chip module Good positioning of the modules can simplify the structure of the electrical connector and save costs.

Description

electrical connector

【Technical field】

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

【Background technique】

At present, the electrical connectors used to test the chip module have complex structures in order to meet the requirements of high temperature and high pressure. Part, like this, just must have a kind of matching part to adapt to it for each type of chip module, has increased cost greatly like this.

Please refer to Fig. 1 and Fig. 2, it is the electric connector that is used for testing solder ball type (Ball Grid Array) chip module in the prior art, and it comprises body part 80, and the plug-in part 804 corresponding with body part 80 center The upper mounting part 81 and the lower mounting part 82, the locking part 86 pivotally connected to the upper mounting part 81, the driving part 84 driving the locking part 86, and the matching part 85 placed on the upper mounting part 81 and in the driving part 84 . Wherein, the insertion portion 804 is provided with a plurality of insertion holes corresponding to the upper installation portion 81 and the lower installation portion 82 , and a plurality of conductive terminals (not shown) are provided therein. The locking portion 86 is provided with a pivot 862 pivotally connected to the upper mounting portion 81 and a hook 860 capable of locking the chip module. The driving part 84 is provided with a clamping part 842 that can move up and down along the draw-in groove 802 of the main body part 80. The four corners of the main body part 80 can be provided with springs to support the driving part. When the driving part 84 is pressed down, the driving lock The buckle is in the open position, the chip module can be placed in the electrical connector, and then the driving part is moved up by the spring force, and the locking part is driven in the closed position to lock the chip module. The mating portion 85 is provided with a frame corresponding to the size of the chip module surrounded by two opposite bottoms 850 and two opposite bottoms 852 adjacent to 850, which can hold the periphery of the chip module and fix it on the electrical connection. In this way, the top, bottom, left, right, and front and back of the chip module can be well positioned to facilitate testing of the chip module. In addition, the bottom surface of the electrical connector may also be provided with a protective plate 88 for protecting the terminal pins of the electrical connector.

In the above-mentioned electrical connector, for each type of chip module, a matching portion 85 is required to cooperate with the frame of the chip module to position the chip module, and the structure is complicated. A lot of labor and time are spent in the mold manufacturing coordination department.

In view of the above defects in the electrical connectors in the prior art, it is necessary to propose an electrical connector with a simpler structure to overcome the above defects.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector with simple structure, reliable positioning of the chip module and cost saving.

The utility model is an electrical connector used to connect a chip module and a circuit board, comprising an insulating body provided with a plurality of terminal holes, a plurality of conductive terminals accommodated in the terminal holes of the insulating body, a locking device arranged on the insulating body and an adjustable Drive the driving body of the locking device. The driving body can drive the locking device to move between the open position where the chip module can be taken and placed and the closed position where the chip module can be locked. There are solder balls on the chip module that can be connected to the conductive terminals. The terminal is provided with a clamping portion connected to the solder ball and a pin that can be inserted into the circuit board. The clamping portion of the conductive terminal clamps the solder ball to limit the displacement of the chip module in the first horizontal direction. The insulating body is provided with A plurality of protrusions abutting against the solder balls limit displacement of the chip module in a second horizontal direction perpendicular to the first horizontal direction.

Compared with the prior art, the utility model has the following advantages: the chip module is positioned by holding the solder ball by the conductive terminal, the locking device locks the chip module, and the solder ball of the chip module abuts against the protruding part, which can simplify the electrical connector The structure saves cost.

【Description of drawings】

FIG. 1 is an exploded perspective view of an electrical connector in the prior art.

Fig. 2 is an exploded view of the driving body and other parts of the electrical connector in the prior art.

Fig. 3 is a three-dimensional assembly view of the first embodiment of the electrical connector of the present invention.

FIG. 4 is an exploded perspective view of the electrical connector shown in FIG. 3 .

Fig. 5 is a perspective view of the conductive terminal of the electrical connector of the present invention.

Fig. 6 is a schematic diagram of the cooperation between the conductive terminal and the chip module of the present invention.

Fig. 7 is a schematic diagram of cooperation between the protruding part of the present invention and the wafer module.

Fig. 8 is a three-dimensional assembly view of the second embodiment of the present invention.

Fig. 9 is a three-dimensional exploded view of the third embodiment of the present invention.

【Detailed ways】

Please refer to FIGS. 3 to 5 , an electrical connector for testing a chip module (not shown), which mainly includes a main body 1, an upper socket 2 mounted on the main body 1, and an upper socket 2 mounted on the main body 1. The lower socket part 3 below, the locking device 5 installed on the upper socket part 2 and the driving body 4 installed on the main body part 1 to drive the locking device 5, the main body part 1, the upper socket part 2 and the lower part A plurality of conductive terminals 16 are accommodated in the socket part 3, and a protective plate 6 that can protect the conductive terminals can be provided at the bottom of the electrical connector, wherein the main body part 1, the upper socket part 2 and the lower socket part 3 are the parts of the electrical connector. Insulated body.

The main body 1 is generally square, with a number of intermediate terminal holes 14 arranged in a matrix at the central position of the bottom, and four vertical plates 15 with a certain height are arranged upwards near the outermost two rows of terminal holes. 15 are arranged symmetrically, the bottom is surrounded by side walls 10, which form a chamber with the bottom, a number of grooves 11 are arranged on the outside of the side walls 10, matching holes 13 are arranged on the four corners of the body part 1, and first The cylinder 17 and the matching hole 13 contain springs 18 respectively, and the first cylinder 17 can be installed on the circuit board to position the electrical connector.

The upper chamber of the main body 1 is accommodated with a substantially square-shaped upper socket part 2, and an accommodation groove 20 is arranged in the middle of the opposite sides, and holes (not shown) are respectively arranged on the two side walls of the accommodation groove 20. , there are hooks 22 hanging from the side of the accommodating part, and these hooks 22 can be caught on the main body part 1 to fix the upper inserting part 2 thereon. The upper terminal hole 26 corresponding to the middle terminal hole 14 of the main body part 1 is provided at the central position of the upper insertion part 2, and the outer side of the upper terminal hole 26 is provided with a through hole 24 corresponding to the upper vertical plate 15 of the main body part 1, and the through hole 24 The size is substantially equal to the vertical plate 15.

The lower part of the body part 1 is installed with a lower socket part 3 by screws (not shown), and the lower socket part 3 is provided with a lower terminal hole 30 corresponding to the position of the middle terminal hole of the body part 1 .

The middle terminal hole 14 of the main body part 1, the upper terminal hole 26 of the upper socket part 2 and the lower terminal hole 30 of the lower socket part accommodate a number of conductive terminals 16, please refer to Figure 5, the conductive terminals 16 are provided with insertable The pin-like pin 160 in the circuit board, the deflection part 162 that produces a deflection with the pin 160, and the two opposite arm parts 164 extending upward from the deflection part 162, the top part of the arm part 164 stretches out and plugs in On the surface of the upper portion, a clamping portion 166 is provided at the top, and the two clamping portions 166 are oppositely provided with solder balls (not shown) capable of clamping the chip module.

A locking device 5 is respectively accommodated in the accommodation groove of the upper insertion part 2, and the locking device 5 includes pivots 50 on both sides of the bottom end and a locking part 52 extending along the bottom end, wherein the pivot shaft 50 can be installed Into the hole provided on the side wall of the accommodating groove 20 of the upper inserting part 2 , the end of the locking part 52 is bent inwardly.

A driving body 4 is installed on the body part 1, and the driving body 4 is generally a square frame body, and there are protruding plates 40 extending downwards around it to cooperate with the groove body 11 on the outside of the side wall 10 of the body part 1, so that the driving body 4 moves along the vertical direction. Direction movement, the four corners of the driving body 4 are respectively provided with the second column 44 corresponding to the matching hole 13 of the main body 1 toward the main body 1, which can be inserted into the matching holes 13 on the four corners of the main body 1, And cooperate with spring 18. The opposite sides of the driving body 4 are provided with a pressing part 42 at the position corresponding to the locking device 5, and the pressing part 42 can press the locking device 5 when the driving body 4 moves up and down, so that the locking device 5 can be opened from the closed state. state. When there is no external force, the driving body is in a higher position supported by the elastic force of the spring. At this time, the locking device is in a closed state. When the external force presses the driving body 4, the driving body 4 moves down, and its pressing part 42 presses the compression buckle device 5 to make it It is in an open state, and at this time, the chip module can be installed or removed.

The bottom of the electrical connector can be provided with a protective plate 6 for protecting the pins 160 of the electrical connector terminals 16. The protective plate 6 is provided with two opposite clamping plates 60 protruding toward the main body 1, and the outside of the clamping plate 60 is provided with Interfittable tabs. The protective plate 6 is provided with a hole 64 corresponding to the pin 160 of the conductive terminal 16, which can protect the pin 160 from being damaged by external force when the electrical connector is not in use.

Please refer to Fig. 6, when the conductive terminal 16 is placed in the body part 1, the top ends of the two arm parts 164 protrude from the upper insertion part 2, and the connecting line between the top parts is roughly parallel to the vertical plate 15. In this embodiment, The connecting line between the tops is the first horizontal direction, and the two arm parts 164 can clamp the solder balls 48 of the chip module 46 in the first horizontal direction, so that the chip module 46 can be prevented from moving in the horizontal plane and the vertical board extending direction.

Please refer to FIG. 7 , which is a schematic diagram of the cooperation between the vertical plate 15 and the chip module 46. The inner sides of the two vertical plates 15 can abut against some of the solder balls 48 on the outermost two rows of the chip module 46, so that the chip module 46 can be prevented from The horizontal plane moves in the second horizontal direction perpendicular to the vertical plate 15 , that is, the wafer module 46 is restricted from moving in the second horizontal direction perpendicular to the first horizontal direction.

When the wafer module 46 is installed on the upper socket part 2 and the electrical connector is closed, the locking part 52 of the locking device 5 can be pressed against the wafer module 46 to prevent the wafer module from moving in the vertical direction. In this way, the wafer module 46 is defined in three directions, ie the wafer module 46 is well positioned in the electrical connector.

Please refer to Fig. 8, which is the second embodiment of the present utility model, which is generally the same as the electrical connector of the first embodiment, mainly including the main body part 1, the upper insertion part 2, the driving body 4 and the locking device 5, different The difference is that two opposite elongated protruding parts 15' are arranged on the mating surface of the upper plug-in part 2 and the chip module near the outermost two rows of terminal holes. The height of the protruding parts 15' is the same as that of the vertical The height of the straight plate 15 protruding from the upper surface of the upper insertion part 2 is substantially the same, and it can also abut against the two rows of solder balls on the outermost side of the chip module, and position the chip module in a direction perpendicular to the protruding part 15' on the horizontal plane . In addition, the elongated protruding portion 15' can also be arranged between the two rows of terminal holes, which can also play a role in positioning the chip module.

Please refer to Fig. 9, which is the third embodiment of the present utility model, which is different from the first embodiment in that: a frame body 7 is added to the insulating body, and the frame body 7 is arranged on the upper socket part 2, A holding plate 70 oppositely extends from its bottom end, and the holding plate 70 can be bottomed against the outer solder balls of the chip module, so that the chip module can also be positioned perpendicular to the extending direction of the extending plate.

The insulative body of the electric connector in the utility model for accommodating the conductive terminal 16 is divided into three parts. In practical application, the insulative body can also be integrally arranged.

In the above-mentioned embodiments, the protruding parts on the insulating body or the frame body are used to abut against the solder balls of the chip module, so that the chip module is positioned in the direction opposite to the two protruding parts, and combined with the conductive terminal 16 and the locking device 5, the The entire wafer module is well positioned. By using the solder balls of the chip module instead of the four frames of the chip module for positioning, the structure of the electrical connector can be simplified, and labor and manufacturing costs can be saved.

Claims (9)

1. electric connector, be used for connecting wafer module and circuit board, it comprises the insulating body that is provided with the plurality of terminals hole, be placed in the plurality of conductive terminals in the insulating body terminal hole, be located at the locker on the insulating body and can drive the driving body of locker, driving body can drive locker and move between the make position of enable possition that can pick and place wafer module and snap close wafer module, wafer module is provided with the soldered ball that can connect with conducting terminal, conducting terminal is provided with the clamping part that connects with soldered ball and can be inserted into pin in the circuit board, in the displacement of the first horizontal direction upper limit combinations sheet module, it is characterized in that behind the clamping part clamping soldered ball of conducting terminal: insulating body is provided with some soldered ball upper limit combinations sheet modules that abut at the protuberance perpendicular to the second horizontal direction top offset of first horizontal direction.

2. electric connector as claimed in claim 1, it is characterized in that: insulating body comprises body and the last Plug Division and the lower inlaying grafting part that cooperate with body, be equipped with terminal hole on last Plug Division and the lower inlaying grafting part, protuberance is located on the body and towards last Plug Division, last Plug Division is provided with and the corresponding hole of protuberance, and the hole that protuberance passes the Plug Division protrudes in the upper surface of Plug Division.

3. electric connector as claimed in claim 2 is characterized in that: the terminal hole of insulating body is row and is provided with, and protuberance is located at the outside near outermost two row's terminal holes.

4. electric connector as claimed in claim 3 is characterized in that: be provided with the spring that cooperates with driving body in the insulating body, driving body is provided with can be by the press section of compression buckle device, and locker is articulated on the insulating body.

5. electric connector as claimed in claim 4 is characterized in that: the electric connector bottom is provided with the baffle of pegging graft and cooperating with conducting terminal.

6. electric connector as claimed in claim 1 is characterized in that: the clamping part of conducting terminal stretches out insulating body and wafer module facing surfaces.

7. electric connector as claimed in claim 6 is characterized in that: insulating body upper terminal hole is row and is provided with, and protuberance is strip, and it is located at the outside near outermost two row's terminal holes.

8. electric connector as claimed in claim 6, it is characterized in that: protuberance is located at respectively and is arranged between the terminal hole.

9. electric connector as claimed in claim 1 is characterized in that: insulating body is provided with a framework, and protuberance is located at the bottom surface of framework and can be abutted on the outermost soldered ball of wafer module.

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