CN201191665Y - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, which is used to electrically connect a chip module whose sides are provided with notches to a printed circuit board, and comprises an insulating body, a plurality of conductive terminals which are arranged in the insulating body and a pair of fitting blocks. The insulating body is provided with a bottom wall and a plurality of side walls which are extended upwards from the periphery of the bottom wall, and the side walls and the bottom wall can form a holding cavity for holding the chip module, and matching slots are further are arranged on two relative side walls. The fitting blocks are held in the matching slots, and a cylinder and a cross arm which enter into the holding cavity are arranged, the cylinder is matched with the notches of the chip module, and the cross arm is pressed on the front end face of the chip module to position the chip module.

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】

Land grid array (LGA) electrical connectors are widely used in the field of electrical connectors, used to electrically connect chip modules and circuit boards, and realize electrical connection between electrical connectors and chip modules by pressing, chip modules A conductive sheet connected with the electrical connector is provided on the top. Because the chip module needs to be placed into the electrical connector in a specific direction, it can work normally. In order to prevent the chip module from being reversed and misplaced, there are usually notches on the two opposite sides of the chip module, corresponding to this. Yes, the insulative body of the electrical connector is integrally formed with a bump on the inner side of its side wall to match the notch of the chip module, so as to ensure that the chip module can be correctly assembled. For related electrical connectors, reference may be made to the contents disclosed in US Pat. Nos. 7,083,456, 6,908,316 and 6,164,980. These electrical connectors have a simple structure and are easy to form, but the protrusions are close to the terminal grooves on the insulating body for receiving the terminals, which will affect the assembly of the terminals.

US Patent No. 7,207,808 discloses another improved electrical connector, which includes an insulating body, several terminals and a pair of detachable keys. The insulating body includes a bottom wall with several terminal channels and a side wall extending upward from the periphery of the bottom wall. The bottom wall and the side wall together form a receiving space for accommodating the chip module. Grooves are also provided on the bottom wall corresponding to the notches formed on both sides of the chip module. After the terminal is inserted into the corresponding terminal channel, the detachable key is inserted into the groove to be fixed on the insulating body, so the assembly of the terminal will not be affected. However, the holding between the detachable key and the insulating body is unstable, and it is easy to fall off.

Therefore, it is necessary to improve the above-mentioned electrical connector to solve the above-mentioned technical problems.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector with a mating block.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an electrical connector, which can be used to electrically connect a chip module with a notch on the side to a printed circuit board, which includes an insulating body and a number of conductive connectors housed in the insulating body. The terminal and the insulating body are provided with a bottom wall and a plurality of side walls extending upward from the periphery of the bottom wall. The side walls and the bottom wall enclose a cavity for accommodating the chip module. The electrical connector is also provided with a mating block assembled on the insulating body. The mating block is provided with a column and a cross arm that enters the receiving cavity. chip module.

Compared with the prior art, the electrical connector of the utility model has the following beneficial effects: the mating block of the electrical connector does not affect the assembly of the terminals, and the assembly is firm and reliable.

【Description of drawings】

FIG. 1 is a perspective view of an electrical connector and a chip module in a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the electrical connector and the chip module shown in FIG. 1 .

Fig. 3 is a bottom view of the mating block shown in Fig. 2 .

4 is a perspective view of the electrical connector and the chip module in the second embodiment of the present invention.

FIG. 5 is an exploded perspective view of the electrical connector and the chip module shown in FIG. 4 .

【Detailed ways】

1-3, the electrical connector in the first embodiment of the present invention can electrically connect the chip module 7 to the circuit board (not shown), which includes an insulating body 10 and is accommodated in the insulating body 10. A number of conductive terminals (not shown) and a pair of mating blocks 20. A pair of notches 70 are symmetrically formed on opposite sides of the chip module 7 .

The insulating body 10 is integrally formed into a substantially rectangular plastic structure, which includes a bottom wall 101 and side walls 102 extending upward on four sides of the bottom wall 101. The bottom wall 101 is provided with an assembly surface 103 for assembly with the chip module 7 and The installation surface 104 opposite to the assembly surface 103 forms a plurality of terminal receiving grooves (not shown) through the assembly surface 103 to the installation surface 104 . The bottom wall 101 and the side wall 102 jointly surround and form a receiving chamber 100 for receiving the chip module 7 . A pair of holes 105 are formed on the bottom wall 101 corresponding to the gap 70 of the chip module 7 , and a pair of matching grooves 11 are formed on the two opposite side walls 102 . The matching grooves 11 are adjacent to the holes 105 .

The mating block 20 is an integrally formed plastic block, which is provided with a horizontal base 21, the base 21 can be divided into two parts, the front part forms a block part 22 protruding downward, and the rear part is on the inside close to the receiving cavity 100 There is an arc-shaped cylinder 23 extending downward from the edge, and a buckle arm 24 opposite to the cylinder 23 is provided on the outer edge of the rear part. There is a space (not labeled) between the buckle arm 24 and the cylinder 23, which can accommodate the insulation The corresponding portion on the side wall 102 of the body 10 . A hook 25 is disposed at the end of the buckle arm 24 .

Please continue to refer to FIG. 2 , the matching groove 11 of the insulating body 10 also has two parts, the front part of the matching groove 11 runs through the side wall 102 laterally, and is defined as a through groove 110; the rear part of the matching groove 11 is adjacent to In the hole 105 of the insulating body 10, the rear part of the matching groove 11 is formed by being recessed from the top surface and the outer surface of the side wall 102, and it is provided with a top surface 112, which is lower than the top surface of the side wall 102 ( not labeled) but higher than the assembly surface 103 of the bottom wall 101 . A rear portion of the matching groove 11 is inwardly recessed from an outer side wall portion of the side wall 102 to form a locking groove 114 .

After the terminal (not shown) is assembled into the bottom wall 101, the mating block 20 is inserted into the mating groove 11 of the insulating body 10, its horizontal base 21 is located on the top surface 112 of the mating groove 11, and the block portion 22 is accommodated in the through groove 110 , the lower end of the cylinder 23 extends into the hole 105 , and the buckle arm 24 is buckled with the buckle groove 114 to fix the mating block 20 on the side wall 102 of the insulating body 10 . After assembly, the inner, outer and top surfaces of the mating block 20 are respectively flush with the inner, outer and top surfaces of the side wall 102 .

As shown in FIG. 1 , after the chip module 7 is assembled into the receiving cavity 100 , the notch 70 thereof cooperates with the cylinder 23 of the mating block 20 , which prevents the chip module 7 from being placed into the insulating body 10 by being turned upside down.

Please refer to Figure 4 and Figure 5, the electrical connector in the second embodiment of the present invention can electrically connect another chip module 8 to a circuit board (not shown), the width of the chip module 8 and the position of the gap Same as chip module 7, but its length is shorter. The electrical connector includes an insulating body 30 , a plurality of conductive terminals (not shown) accommodated in the insulating body 30 , and a pair of mating blocks 40 . The chip module 8 is provided with a pair of notches 80 opposite to each other.

The insulator body 30 is the same as the insulator body 10 in the first embodiment, and is integrally formed into a substantially rectangular plastic structure, which includes a bottom wall 301 and side walls 302 extending upward on four sides of the bottom wall 301. The bottom wall 301 is provided with The assembly surface 303 assembled with the chip module 8 and the installation surface 304 opposite to the assembly surface 303 are provided with a plurality of terminal receiving grooves (not shown) passing through the assembly surface 303 to the installation surface 304 . The bottom wall 301 and the side wall 302 jointly form a receiving chamber 300 for receiving the chip module 8 . A pair of holes 305 are defined on the bottom wall 301 corresponding to the notch 80 of the chip module 8 , and a pair of matching grooves 31 are correspondingly formed on the two opposite side walls 302 .

The mating block 40 is an integrally formed plastic block, which is approximately in an inverted L shape, and includes a longitudinally extending base portion 41 and a laterally extending transverse arm 42 perpendicular to the base portion 41 . The base 41 has an arc-shaped cylinder 43 extending downward on the inner edge close to the receiving cavity 300, and a buckle arm 44 opposite to the cylinder 43 is provided on the outer edge, and there is a space between the buckle arm 44 and the cylinder 43 ( Not labeled), can accommodate corresponding parts on the side wall 302 of the insulating housing 30 . A hook 45 is disposed at the end of the buckle arm 44 . The cross arm 42 is thicker and block-shaped, and has an abutting surface 46 for abutting against the front end of the chip module 8 .

Please continue to refer to FIG. 5, the matching groove 31 of the insulating body 30 also has two parts, the front part of the matching groove 31 runs through the side wall 302 laterally, and is defined as a through groove 310; the rear part of the matching groove 31 is adjacent to In the hole 305 of the insulating body 30, the rear part of the matching groove 31 is formed by being recessed from the top surface and the outer surface of the side wall 302, and it is provided with a top surface 312, which is lower than the top surface of the side wall 302 (not shown). label) but higher than the joint surface 303 of the bottom wall 301. A rear portion of the matching groove 31 is inwardly recessed from an outer side wall portion of the side wall 302 to form a locking groove 314 .

After the terminal (not shown) is assembled into the bottom wall 301, the mating block 40 is inserted into the mating groove 31 of the insulating body 30, and its horizontal base 41 is located on the top surface 312 of the mating groove 31, and the cross arm 42 passes through the through groove 310 and enters into the housing. In the cavity 300 , the lower end of the cylinder 43 extends into the hole 305 , and the buckle arm 44 is buckled with the buckle groove 314 , thereby fixing the mating block 40 on the insulating body 30 . After assembly, the inner, outer and top surfaces of the mating block 40 are respectively flush with the inner, outer and top surfaces of the side wall 302 . Wherein the cross arm 42 extends into the receiving cavity 300 .

Please continue to refer to FIG. 4 , when the chip module 8 is assembled, the notch 80 cooperates with the column 43 of the mating block 40 to prevent the chip module 8 from being inserted into the insulating body 30 from the front to the rear. The contact surfaces 46 of the two transverse arms 42 of the two matching blocks 40 contact the front surface of the chip module 8 to position the chip module 8 .

The electrical connector can cooperate with a plurality of chip modules with different sizes, and the different sizes here mainly refer to the different lengths. Several mating blocks with bases of different lengths are provided in advance, and the structure of the mating grooves is adjusted accordingly. Then, according to the length of the chip module, an appropriate matching block is selected and inserted into the insulating body to cooperate with the chip module and position the chip module at the same time.

Claims (6)

1. An electrical connector, which can be used to electrically connect a chip module with a notch on the side to a printed circuit board. It includes an insulating body and a number of conductive terminals accommodated in the insulating body. The insulating body is provided with a bottom wall and a bottom wall. A plurality of side walls extending upwards around the wall, the side walls and the bottom wall enclose a housing chamber for housing chip modules; the feature is that: the electrical connector is also provided with a mating block assembled to the insulating body, and the mating block is provided with a housing The cylinder and the cross arm in the cavity, the cylinder cooperates with the notch of the chip module, and the cross arm touches the front surface of the chip module to position the chip module. 2. The electrical connector as claimed in claim 1, wherein the mating block is provided with a longitudinal base perpendicular to the cross arm, and the base protrudes from the inner side of the base. 3. The electrical connector according to claim 2, wherein the insulating body is provided with a matching groove for accommodating the mating block, and it is provided with an upper surface recessed from the upper surface of the side wall, and the base of the mating block is located on the mating groove on the surface. 4. The electrical connector according to claim 1, wherein the insulating body is provided with a matching groove for accommodating the mating block, the mating groove includes a through groove penetrating through the side wall, and the through groove can be passed through by the cross arm of the mating block Pass and enter the containment cavity. 5. The electrical connector according to claim 4, wherein the matching groove is arranged on the side wall, which includes a buckle groove recessed from the outer surface of the side wall of the insulating body, and the matching block is correspondingly provided with a buckle arm, The buckle arm cooperates with the buckle groove of the insulating body to fix the matching block on the side wall. 6. The electrical connector as claimed in claim 5, wherein after the mating block is assembled into the mating groove, the inner, outer and upper surfaces of the base are respectively flush with the inner, outer and upper surfaces of the side walls.

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