CN201374409Y - Electric connector - Google Patents

Abstract

The utility model discloses an electrical connector, which comprises a base body for accommodating a plurality of conductive terminals, a cover covering the base body, a driver accommodated between the base body and the cover body and capable of driving the cover body to slide in parallel with respect to the base body and protective components. The cover body is provided with a plurality of through holes corresponding to the conductive terminals in the base body. The protection component includes a spacer arranged in the cover body and a gasket arranged in the base body, an opening is arranged in the middle of the gasket, and a smooth surface extending downward is provided around the opening to cooperate with the driving element.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector for achieving electrical connection between a circuit board and a chip module.

【technical background】

The existing microprocessor chip is electrically connected to the circuit board through an electrical connector, which is disclosed in "Technical Process Method of Ball Grid Array Socket" (P460-P466, 1996 IEEE 46th Electronic Components & Technology Conference). In addition, In order to comply with the trend of light and thin connector designs, existing electrical connectors are driven by cams or eccentric structures, such as those disclosed in US Patent Nos. 6,250,941, 6,254,415, 6,280,224, 6,296,507 and 6,338,640. In addition, U.S. Patent No. 6,338,640 discloses an electrical connector driven by a cam. The electrical connector includes a base, a cover that is connected to the base and can slide relative to the base, and a cover that is accommodated in the base. A plurality of conductive terminals, a driving component and a protecting component, wherein the driving component is composed of a plurality of non-coaxial cylinders. The protective component is composed of a spacer and a gasket. The spacer is assembled on the cover by embedding molding. The gasket is fitted in the groove of the base. There are roughly square through holes. After the electrical connector is assembled, the driving member is sequentially provided with the cover body, the through hole of the spacer, the through hole of the washer and the base, so as to achieve the driving function.

However, the spacer and gasket of the protective component are all made of metal, and the square through hole formed by direct stamping of the gasket is relatively rough on the contact surface with the driving component, so the friction force on the contact surface between the driving component and the through hole is relatively large, making When the driving member drives the cover to slide relative to the base, a large operating torque is required, which is inconvenient to operate, and will also affect the stability of the electrical connector electrically connecting the microprocessor chip and the printed circuit board, making the telecommunications transmission difficult. Stablize. Secondly, the contact area between the square through hole formed by direct punching of the gasket and the driving member is small, so that the local stress between the driving member and the gasket is relatively large.

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 technical problem solved by the utility model is to provide an electrical connector, which can reduce the friction coefficient on the contact surface of the driving part and the gasket, and can reduce the local stress on the contact surface.

In order to solve the aforementioned technical problems, the utility model provides an electrical connector, which includes: a base for accommodating a plurality of conductive terminals, a cover covering the base, and a cover that is accommodated between the base and the cover and can drive the cover relative to the base. Parallel sliding drive and protection components. The cover body is provided with a plurality of through holes corresponding to the conductive terminals in the base body. The protection component includes a spacer arranged in the cover body and a gasket arranged in the base body, an opening is arranged in the middle of the gasket, and a smooth surface extending downward is provided around the opening to cooperate with the driving element.

Compared with the related art, the electrical connector of the utility model provides a gasket, the opening of the gasket has a smooth surface extending downward, which can reduce the friction coefficient between the driving part and the gasket, and reduce the operating torque; secondly, it is smooth The surface increases the length of contact between the pad and the driver, reducing localized stress between the two, reducing wear and increasing durability.

【Description of drawings】

FIG. 1 is a three-dimensional exploded view of the electrical connector of the present invention.

FIG. 2 is a three-dimensional exploded view of another viewing angle of the electrical connector of the present invention.

FIG. 3 is a three-dimensional assembly view of the electrical connector of the present invention.

Fig. 4 is a sectional view along line A-A shown in Fig. 3 .

【Detailed ways】

Referring to Figures 1 to 4, the utility model is an electrical connector for electrically connecting a chip module (not shown) and a printed circuit board (not shown). The cover body 2 on the base body 1 , the driver 3 and the protection member 4 accommodated in the cover body 2 and the base body 1 . The protection member 4 includes a spacer 42 arranged in the cover body 2 and a spacer 41 arranged in the base body 1 .

The substrate 1 is in the shape of a flat plate, and includes a conductive region 10 containing a plurality of conductive terminals (not shown) and a first end portion 11 located at one end of the conductive region 10 . A first groove 110 is formed in the middle of the upper surface of the first end portion 11 for accommodating the washer 41 . The bottom surface of the first end portion 11 protrudes downward to form a protruding portion 111 . The cover body 2 is assembled on the base body 1 and includes a receiving area 20 corresponding to the conductive area 10 and a second end portion 21 corresponding to the first end portion 11 . The second end portion 21 is higher than the receiving area 20 . The receiving area 20 is provided with a plurality of through holes 200 corresponding to the conductive terminals, so that the pins (not shown) on the chip module pass through and contact with the conductive terminals. Both sides of the receiving area 20 extend downwards with sidewalls 201 matching both sides of the base 1 , and the middle of the receiving area 20 is provided with an upwardly protruding bump 202 to support the chip module. A second groove 210 for accommodating the spacer 42 is formed on the lower surface of the second end portion 21 . The cover body 2 , the base body 1 , and the spacer 42 are respectively provided with openings 2100 , 1100 , 420 , and the gasket 41 is provided with openings 410 corresponding to the openings 2100 , 1100 , 420 .

The driver 3 is composed of several non-coaxial cylinders, which include a first cylinder 31 accommodated in the opening 2100 of the cover 2, a second cylinder 32 accommodated in the opening 420 of the spacer 42, and accommodating The third cylinder 33 in the opening 410 of the washer 41 and the fourth cylinder 34 cooperate with the locking plate 5 and fix the driver 3 in the holes 2100 , 420 and the opening 410 . A block 310 is disposed on the first cylinder 31 to limit the rotation range of the driving member 3 .

The spacer 42 is accommodated in the cover body 2 through integral injection molding. The spacer 42 is provided with two protrusions 420, and the protrusions 420 can position the stopper 310 on the driver 3 so that the driver 3 is within a certain range. Rotate to limit the horizontal sliding of the cover body 2 in the open and closed positions. The gasket 41 is a thin iron sheet formed by blanking, and the opening 410 is drawn and formed in the middle of the gasket 41. The edge of the opening 410 extends downward with a smooth surface 4100, and the smooth surface 4100 forms a circle of continuous smooth surface around the opening 410. Surface 4100.

Continue to refer to FIG. 4 , which is a cross-sectional view of the electrical connector along the longitudinal centerline, wherein the conductive terminals and the through holes 200 of the cover 2 are not shown. The bottom surface of the receiving area 20 of the cover body 2 is provided with several grooves 203 to prevent the cover body 4 from warping, and the bottom surface of the conductive area 10 of the base body 1 is provided with several ribs 100 of the same height as the protrusions 111, which can prevent the base body 1 from warping. curved, and can support the matrix 1. The smooth surface 4100 of the gasket 41 extends into the opening 1100 of the base body 1. After the driver 3 is assembled, the third cylinder 33 is in contact with the smooth surface 4100 of the gasket 41, so that the driver 3 can have a stable and smooth contact. surface, thereby reducing the operating torque of the driver 3, and the height of the third column 33 and the smooth surface 4100 of the gasket 41 is the same, extending the length of the actual contact between the driver 3 and the gasket 41, which can reduce the distance between the two Localized stress reduces wear and increases durability.

The above are only preferred implementations of the utility model, and any improvements made on the basis of this implementation should not deviate from the technical solution of the utility model.

Claims (9)

1. electric connector; it comprises: accommodate plurality of conductive terminals matrix, be covered in lid on the matrix, be contained between matrix and the lid; can drive lid with respect to the actuator of matrix parallel slip and establish and matrix and lid between the protection member; lid is provided with some through holes corresponding with conducting terminal in the matrix; it is characterized in that: the protection member comprises to be located at the partition in the lid and to be located at pad in the matrix; described pad middle part is provided with opening, and described around openings has the smooth surface of downward extension to cooperate with actuator.

2. electric connector as claimed in claim 1 is characterized in that: described smooth surface is the continuous face around opening.

3. electric connector as claimed in claim 1 is characterized in that: described opening draws formation for taking out.

4. electric connector as claimed in claim 1 is characterized in that: described actuator is formed by some not coaxial cylinders.

5. electric connector as claimed in claim 4 is characterized in that: the smooth surface of described pad cooperates with a cylinder of described actuator, and this smooth surface and this cylinder are contour.

6. electric connector as claimed in claim 1 is characterized in that: the bottom surface of described lid is provided with some grooves that prevent the lid warpage.

7. electric connector as claimed in claim 1 is characterized in that: the bottom surface of described matrix is provided with some ribs that prevent the matrix warpage.

8. electric connector as claimed in claim 1 is characterized in that: the end middle part of described matrix is provided with perforate, and described smooth surface extends in this perforate.

9. electric connector as claimed in claim 8 is characterized in that: the end that described matrix is provided with perforate convexes with protuberance downwards, is provided with some and the contour rib of protuberance in the relative end of protuberance.

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