CN2682663Y - Electric connector - Google Patents

Abstract

The utility model discloses an electrical connector for connecting a chip module to a circuit board. The electrical connector mainly includes a longitudinally long insulating body, a conductive terminal accommodated in the insulating body, and a reinforcing sheet combined on the insulating body. 1. A pressing plate and a driving rod pivotally connected to the insulating body. Wherein the pressure plate includes two opposite first sides and two opposite second sides arranged adjacent to the first side, the second side is arranged in an arc surface, and the middle part of its bottom surface protrudes toward the insulating body with a stop An auxiliary block is provided on the bottom surface of the second side close to the pivot joint between the driving lever and the reinforcement sheet. The bottom of the auxiliary block is on the same level as the abutting portion of the pressure plate, and the horizontal plane is parallel to the surface of the chip module. When the pressure plate is pressed down, the abutting part of the middle part of the second side of the pressure plate and the bottom of the auxiliary block are in contact with the chip module, thereby preventing the chip module from being unable to be crimped on the terminal due to excessive friction between the chip module and the insulating body This results in poor contact between the chip module and the terminals.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector which can be used to electrically connect a plane grid chip module and a circuit board.

【Background technique】

Land grid array electrical connectors are widely used in the electronic field to electrically connect chip modules to circuit boards. This technique is disclosed in "Nonlinear Analysis Helps Design LGA Connectors" (ConnectorSpecifier, Februray 2001). The electrical connector generally includes an insulating body and conductive terminals accommodated in the insulating body. Taiwan Patent Publications Nos. 549635, 549644, and 555212 also disclose such structures. However, there are disadvantages in the structure of these prior art. As shown in FIG. 1, FIG. 2 and FIG. And the pressing plate 84 and the lever 85 respectively assembled on two opposite ends of the insulating body 82 , wherein the ends of the conductive terminals 81 are exposed from the upper surface of the insulating body 82 to abut against the conductive sheet of the chip module 100 in a pressing manner. The pressing plate 84 is provided with two opposite sides 840, and the side 840 is provided with a pressing portion 841 for pressing against the chip module. When the electrical connector 8 is assembled with the chip module 100, the pressing plate 84 is rotated to make it stand upright. , place the wafer module 100 on the insulating body 82, then rotate the pressing plate 84, so that the pressing plate 84 is against the wafer module 100, and at this time turn the lever 85, so that the pressing plate 84 gradually moves toward the insulating body under the drive of the lever 85. 82 close to each other, so that the pressing portion 841 of the pressing plate 84 presses the chip module 100 downwards and makes the conductive sheet come into close elastic contact with the conductive terminal 81 to form electrical conduction between the chip module 100 and the electrical connector 8 .

When the pressing part 841 of the pressing plate 84 presses the wafer module 100, since the pressing part 841 is arranged in the middle of the side 840, the bending direction of the end of the conductive terminal 81 is toward the end where the lever 85 and the reinforcing sheet 83 are combined (please Referring to Fig. 1), when the pressing plate 84 presses the chip module 100, since the pressing plate 84 first presses against the side close to the fastening between the pressing plate 84 and the reinforcement sheet 83, the other side of the chip module 100 will be tilted and even a small amount of Horizontal displacement, when the tilted side is pressed down, friction will also be generated between the adjacent side walls, so that the chip module 100 is not easy to be pressed down and a certain gap is generated between the conductive terminal 81 and the conductive sheet Failure to make electrical contact with the conductive terminals 81 will affect the reliable electrical connection between the chip module 100 and the electrical connector 8 .

Therefore, it is necessary to provide a new electrical connector to overcome the above problems.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector which electrically connects the chip module and the circuit board and ensures reliable electrical connection between the chip module and the electrical connector.

In order to achieve the above object, the electrical connector related to the utility model mainly includes a longitudinally long insulating body, a conductive terminal accommodated in the insulating body, a reinforcing sheet combined on the insulating body, a pressure plate pivoted on the insulating body and lever. Wherein the pressure plate is provided with a bottom surface facing the insulating body, and the middle part of the bottom surface is provided with an abutment portion, and the bottom surface of the pressure plate is close to the pivoting end of the driving rod and the reinforcing plate, and an auxiliary block is provided toward the insulating body, and the bottom of the auxiliary block is in contact with the pressure plate. parts are on the same horizontal plane, and the horizontal plane is parallel to the surface of the chip module. When the pressing plate is pressed down, the abutting portion in the middle of the second side of the pressing plate and the bottom of the auxiliary block both abut against the chip module, so that the chip module and the terminal achieve good conduction.

Compared with the prior art, the utility model has the following advantages: when the chip module is combined with the electrical connector, the abutting portion and the auxiliary block respectively abut against the chip module, thereby preventing the chip module from contacting the insulating body. The friction between the chip module and the terminal is too large to be crimped on the terminal, resulting in poor contact between the chip module and the terminal.

【Description of drawings】

FIG. 1 is an exploded perspective view of a conventional electrical connector.

FIG. 2 is a combination diagram of a conventional electrical connector and a chip module.

FIG. 3 is a cross-sectional view of a conventional electrical connector along line III-III in FIG. 2 .

Fig. 4 is a three-dimensional exploded view of the electrical connector of the present invention.

Fig. 5 is a bottom view of the pressure plate of the electrical connector of the present invention.

Fig. 6 is a three-dimensional assembled view of the electrical connector of the present invention.

Fig. 7 is a sectional view of the electrical connector of the present invention along line VII-VII in Fig. 6 .

【Detailed ways】

4 and 5, the electrical connector 1 of the present invention is used to electrically connect the chip module 60 to a circuit board (not shown), which includes an insulating body 10 for accommodating conductive terminals 12, a package The reinforcing piece 20 on the outside of the insulating body 10 , the lever 30 pivotally connected to one side of the reinforcing piece 20 , and the pressing plate 40 pivotally connected to the other side of the reinforcing piece 20 .

The insulating body 10 is in the shape of a vertically long flat plate, and a conductive area 14 is arranged in the middle. The conductive terminal 12 of the conductive terminal 12, the conductive end (not shown) of the conductive terminal 12 extends outside the docking surface 15 so as to abut with the conductive sheet (not shown) on the bottom surface of the chip module 60 in a pressing manner, and the conductive terminal 12 The conductive terminal 12 The bending direction of the terminal is towards the corner A of the insulating body 10 , and the insulating body 10 has a positioning protrusion 18 on its bottom surface. The electrical connector 1 is electrically connected to the circuit board through its conductive terminals 12 to realize electrical connection with the circuit board, and then through the conductive terminals 12 and the conductive sheet of the chip module 60 are electrically connected to finally realize the connection between the chip module 60 and the circuit board. electrical connections to the board.

The driving lever 30 is formed by bending an elongated metal round rod several times, and it includes an actuating part 32 and a holding part 34 connected substantially vertically to the actuating part 32. The actuating part 32 is provided with an outwardly bent The folded handle 33 has a pressing portion 35 protruding from the middle of the holding portion 34 .

Please refer to FIG. 4, FIG. 5 and FIG. 7, the pressing plate 40 is a hollow frame structure, which has two opposite first sides 41 and two opposite second sides 42 adjacent to the first side 41. The middle part of one of the first sides 41 bends along an arc to extend with an extension part 411, and the other first side 41 is symmetrically extended with two buckling parts 412 with a semicircular cross section, between the two buckling parts 412 A substantially strip-shaped positioning portion 413 is extended. The second side 42 is arranged in an arc surface, and the middle part of the bottom surface of the second side 42 faces the bottom of the arc surface formed by the insulating body 10. The bottom is the contact portion 421, and the second side 42 is close to the first side 41. One end of the extension part 411 is provided with an auxiliary block 422 adjacent to the abutment part 421. The auxiliary block 422 is spherical and punched from the bottom surface of the second side 42 in the direction of combining with the insulating body 10. The auxiliary block 422 422 can also be welded from the bottom surface of the second side 42. The end of the auxiliary block 422 forms a bottom, that is, the contact portion 423. The contact portion 423 is on the same level as the contact portion 421, and this plane is parallel to the surface of the chip module 60. , and both the contact portion 423 and the abutment portion 421 can abut on the chip module 60 .

The reinforcement sheet 20 is a long metal structure, which includes a first side wall 22 and a second side wall 24 . One of the first side walls 22 is provided with a pair of bayonet openings 221 corresponding to the position of the buckle portion 412 of the pressure plate 40 for pivotally connecting the pressure plate 40 to the reinforcing piece 20, and a pair of bayonet openings 221 are provided on the other first side wall 22. The holding piece 241 is bent, and a holding piece 242 is bent and extended at one end of the holding piece 241. The holding piece 241 and the holding piece 242 make the lever 30 pivotally connected to the first side wall of the reinforcing piece 20 22 , and a semi-arc-shaped hook 243 is provided on a second side wall 24 for locking the lever 30 . A notch 26 is disposed on the side of the reinforcing sheet 20 where the first side wall 22 is located corresponding to the position of the positioning protrusion 18 of the insulating housing 10 .

Please refer to FIG. 4 and FIG. 6, the assembly process of the electrical connector 1 is as follows: first, the pressure plate 40 and the lever 30 are pivotally connected to the two opposite first side walls 22 of the reinforcing plate 20, and then the pressure plate 40 is placed on Open the position, then put the insulating body 10 into the reinforcing sheet 20, and engage the positioning protrusion 18 at the bottom of the insulating body 10 in the notch 26 at the bottom of the reinforcing sheet 20 so that the insulating body 10 is held in the reinforcing sheet 20, At the same time, the sidewall of the reinforcement sheet 20 wraps around the insulation body 10 .

Please refer to Fig. 4 and Fig. 7, when the electrical connector 1 is in use, first shake the lever 30 to the position where the handle 33 is away from the hook 243 of the reinforcing sheet 20 and make the handle 33 stand upright. The pressing part 35 does not block the extension part 411 of the pressing plate 40, open the pressing plate 40, place the chip module 60 on the insulating body 10, make its conductive sheet correspond to the position of the conductive terminal 12 accommodated in the insulating body 10, and then place the pressing plate 40 moves to the horizontal position, at this time, turn the lever 30 to make the handle 33 rotate to the horizontal position, and at the same time, the pressing part 35 will press the extension part 411 of the pressing plate 40 downward, thereby driving the abutting part 421 of the pressing plate 40 and The contact portion 423 of the auxiliary block 422 presses the chip module 60 downwards, so that the conductive sheet of the chip module 60 is tightly pressed against the leading end of the conductive terminal 12, and at the same time, the actuating part 32 of the lever 30 is pressed into the hook 243 to lock the lever 30 to a horizontal position, which means to lock the chip module 60 to a state of firm elastic connection with the conductive terminal 12 of the electrical connector 1 .

The pressing plate 40 is provided with an abutting portion 421 and an auxiliary block 422 structure, thereby overcoming the fact that when the pressing plate 40 abuts with the chip module 60, the end of the chip module 60 close to the pivotal connection between the driving lever 30 and the reinforcing sheet 20 is upturned and cannot be connected with the reinforcing plate 20. The disadvantages of good conduction of the terminals 12 of the insulating body 10 make the contact between the pressure plate 40 and the chip module 60 balanced and stable, and a reliable electrical connection is formed between the conductive sheet of the chip module 60 and the conductive terminals 12 .

It should be noted that the cross-sectional shape of the auxiliary block 422 is not limited to a circle, it can be a square, a rhombus or an ellipse, and so on.

Claims (9)

1. electric connector that is used to electrically connect the wafer module, comprise insulating body, be contained in conducting terminal in the insulating body, be coated on the reinforced sheet of insulating body periphery and be articulated in pressing plate and driving lever on the insulating body, its center platen is provided with the bottom surface towards insulating body, the middle part of this bottom surface is provided with abutting part, it is characterized in that: the bottom surface of pressing plate articulates an end is provided with butt wafer module towards insulating body auxiliary block near driving lever and reinforced sheet.

2. electric connector as claimed in claim 1 is characterized in that: the bottom of auxiliary block and the abutting part of pressing plate are on same horizontal plane, and this horizontal plane is parallel to the surface of wafer module.

3. electric connector as claimed in claim 2 is characterized in that: pressing plate is provided with first side and the second side adjacent with the first side that engages with reinforced sheet, and this second side is the cambered surface setting.

4. electric connector as claimed in claim 3 is characterized in that: auxiliary block is stamped to form from the bottom surface, second side of pressing plate.

5. electric connector as claimed in claim 3 is characterized in that: auxiliary block is welded on the bottom surface, second side of pressing plate.

6. as claim 4 or 5 described electric connectors, it is characterized in that: the auxiliary block of pressing plate is provided with contact site, and when pressing this pressing plate, the contact site of auxiliary block connects mutually with the wafer module.

7. electric connector as claimed in claim 6 is characterized in that: the cross sectional shape of auxiliary block is for circular.

8. electric connector as claimed in claim 6 is characterized in that: the cross sectional shape of auxiliary block is square.

9. electric connector as claimed in claim 6 is characterized in that: the cross sectional shape of auxiliary block is a rhombus.

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