CN2682663Y - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector used to connect a chip module and a circuit board, mainly comprising a longwise isolation body, a conductive terminal accommodated in the isolation body, a reinforced sheet combined on the isolation body, a pressing plate which pivots on the isolation body and a deflector rod. Wherein, the pressing plate comprises two opposite first side edges and two opposite second side edges adjacent to the first side edges. The second side edges are in cambered surface arrangement, and the middle of the bottom surface of the second side edge is convexly provided with a bunt part towards the isolation body. The bottom surface of the side edge is provided with an auxiliary block near the pin connected point of the deflector rod and the reinforced sheet. The bottom of the auxiliary block and the bunt part of the pressing plate are in the same horizontal plane which is parallel with the surface of the chip module. When the pressing plate is pressed down, both the bunt part in the middle of the second side edge of the pressing plate and the bottom of the auxiliary block bunt to the chip module. Consequently, the bad contact of the chip module and the terminals, caused by that the oversize friction force between the chip module and the isolation body makes the chip module not pressed on the terminals, can be prevented.

Description

Electric connector

[technical field]

The utility model is about a kind of electric connector, refer to especially a kind of can be in order to electrically connect the electric connector of planar grid wafer module and circuit board.

[background technology]

Electric connector of planar grid array is widely used in electronic applications, in order to the wafer module is electrically connected to circuit board.As promptly having disclosed this kind technology in " Nonlinear Analysis Helps Design LGA Connectors " (ConnectorSpecifier, Februray 2001).This electric connector generally comprises an insulating body and is contained in conducting terminal in this insulating body, Taiwan patent announcement the 549635th, 549644, and has also disclosed this structure No. 555212.But there is shortcoming in the structure of these prior aries, as Fig. 1, Fig. 2 and shown in Figure 3, existing electric connector 8 comprises that insulating body 82, the bag of accommodating conducting terminal 81 be located at the reinforced sheet 83 in insulating body 82 outsides and be connected to the pressing plate 84 and the driving lever 85 of 82 liang of opposite ends of insulating body respectively, and wherein the end of conducting terminal 81 exposes insulating body 82 upper surfaces and connects in the mode of pushing with the conducting strip with wafer module 100.Pressing plate 84 is provided with limit, two opposite sides 840, this side 840 is provided with the press section 841 that compresses the wafer module, when this electric connector 8 is connected with group with wafer module 100, pressing plate 84 rotations are made it to erect, wafer module 100 is positioned on the insulating body 82, rotary pressure plate 84 then, pressing plate 84 is against on the wafer module 100, this moment rotating lever 85, make pressing plate 84 close to insulating body 82 gradually under the drive of driving lever 85, thus the press section 841 that makes pressing plate 84 extruding wafer modules 100 and make its conducting strip and conducting terminal 81 tight elasticity butts and form electrically conducting of 8 of wafer module 100 and electric connectors downwards.

When the 841 extruding wafer modules 100 of the press section of pressing plate 84, because press section 841 is arranged at the centre position of side 840, and the overbending direction of conducting terminal 81 ends is towards driving lever 85 and reinforced sheet 83 combined ends (please refer to Fig. 1), when pressing plate 84 is pushed wafer module 100, because pressing plate 84 compresses a side that fastens near pressing plate 84 and reinforced sheet 83 earlier, can make the opposite side perk of wafer module 100 like this even produce a small amount of horizontal displacement, between being depressed Shi Yihui and its mutually close sidewall, a side of this perk produces frictional force, make wafer module 100 be difficult for being depressed and produce certain clearance and conducting strip can't electrically contact with conducting terminal 81, thereby will influence wafer module 100 and 8 reliable electric connections of electric connector with 81 of conducting terminals.

So, be necessary to provide a kind of new electric connector to overcome the problems referred to above.

[utility model content]

The purpose of this utility model provides and a kind ofly electrically connects wafer module and circuit board and guarantee the reliable electric connector that electrically connects between wafer module and electric connector.

In order to reach above-mentioned purpose, the electric connector relevant with the utility model mainly comprise a lengthwise shape insulating body, be contained in conducting terminal in the insulating body, be combined in reinforced sheet on the insulating body, 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, close driving lever in the bottom surface of pressing plate and reinforced sheet articulate an end and are provided with auxiliary block towards insulating body, the bottom of this 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.When pressing lower platen, the abutting part at middle part, pressing plate second side and the bottom of auxiliary block all connect with the wafer module, connect thereby wafer module and terminal are reached well.

Compare with prior art, the utlity model has following advantage: when wafer module and electric connector are combined, this abutting part and auxiliary block connect with the wafer module respectively, thus can prevent the wafer module because of with insulating body between excessive can't being crimped on of frictional force cause on the terminal contacting bad consequence between wafer module and terminal.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of existing electric connector.

Fig. 2 is the constitutional diagram of existing electric connector and wafer module.

Fig. 3 is the cutaway view of existing electric connector along III-III line among Fig. 2.

Fig. 4 is the three-dimensional exploded view of the utility model electric connector.

Fig. 5 is the upward view of the pressing plate of the utility model electric connector.

Fig. 6 is the three-dimensional combination figure of the utility model electric connector.

Fig. 7 is the cutaway view of the utility model electric connector along VII-VII line among Fig. 6.

[embodiment]

See also Fig. 4 and shown in Figure 5, the utility model electric connector 1 is in order to wafer module 60 being electrically connected to circuit board (not shown), and it comprises that insulating body 10, the bag of accommodating conducting terminal 12 be located at the reinforced sheet 20 in insulating body 10 outsides, the pressing plate 40 that is articulated in the driving lever 30 of reinforced sheet 20 1 sides and is articulated in reinforced sheet 20 opposite sides.

Insulating body 10 is lengthwise tabular structure, be provided with conduction region 14 in its middle part, the plane that this conduction region 14 makes progress is an interface 15, offer terminal hole 16 in conduction region 14, contain a corresponding conducting terminal 12 in each terminal hole 16, the guiding access of conducting terminal 12 (not icon) extend in outside the interface 15 in case with the conducting strip (not icon) of wafer module 60 bottom surfaces to push the mode butt, and the overbending direction of the guiding access of this conducting terminal 12 is towards A place, the corner of insulating body 10, and insulating body 10 is provided with locating convex block 18 in its bottom surface.Electric connector 1 is electrically connected to circuit board by its conducting terminal 12 and realize electrically connects with circuit board, and the conducting strip by conducting terminal 12 and wafer module 60 is electrically conducted and finally realizes the electric connection of wafer module 60 and circuit board again.

Driving lever 30 is formed by long and thin metal round bar bending for several times, and it comprises Actuator Division 32 and the holding parts 34 that links to each other with these Actuator Division 32 approximate vertical, and Actuator Division 32 is provided with the handle 33 of outside bending in its end, and holding parts 34 convexes with the portion 35 that exerts pressure in the middle part of it.

See also Fig. 4, Fig. 5 and shown in Figure 7, pressing plate 40 is a hollow casing structure, its have two relative first sides 41 and with two relative second sides 42 of these first side 41 adjacent settings, wherein there is extension 411 at the middle part of a first side 41 along the camber line bending extension, another first side 41 symmetries extend the holding part 412 that two cross sections are the semicircle arcuation, extend the location division 413 that roughly is strip between two holding parts 412.Second side 42 is the cambered surface setting, the middle part of 42 bottom surfaces, second side forms the bottom of cambered surface towards insulating body 10, this bottom is an abutting part 421, and 42 be provided with the auxiliary block 422 adjacent with abutting part 421 near extension 411 1 ends of first sides 41 in the second side, this auxiliary block 422 is a sphere, its by the bottom surface of second side 42 to being stamped to form with insulating body 10 combined directions, this auxiliary block 422 also can be welded up from the bottom surface of second side 42, it is contact site 423 that the end of auxiliary block 422 forms a bottom, this contact site 423 is on the same horizontal plane with abutting part 421, this plane parallel is in the surface of wafer module 60, and this contact site 423 and abutting part 421 all can be connected on the wafer module 60.

Reinforced sheet 20 is lengthwise shape metal, and it comprises the first side wall 22 and second sidewall 24.Wherein holding part 412 positions corresponding to pressing plate 40 offer a pair of bayonet socket 221 on the first side wall 22, in order to pressing plate 40 is articulated on the reinforced sheet 20, be provided with the retaining sheet 241 that a pair of bending is provided with in another the first side wall 22, and be extended with retaining sheet 242 in the bending of an end of a retaining sheet 241, this retaining sheet 241 and retaining sheet 242 make driving lever 30 be articulated on the first side wall 22 of reinforced sheet 20, and the grab 243 that is provided with the semicircle arcuation in one second sidewall 24 is in order to locking driving lever 30.Reinforced sheet 20 locating convex block 18 positions corresponding to insulating body 10 on the side at its first side wall 22 places are provided with recess 26.

See also Fig. 4 and shown in Figure 6, the assembling process of this electric connector 1 is as follows: earlier pressing plate 40 and driving lever 30 are articulated in respectively on 20 liang of relative the first side walls 22 of reinforced sheet, again pressing plate 40 is placed open position, then insulating body 10 is inserted in the reinforced sheet 20, and be sticked in by insulating body 10 bottom locating convex blocks 18 in the recess 26 of reinforced sheet 20 bottoms so that insulating body 10 is immobilizated among the reinforced sheet 20, simultaneously the sidewall of reinforced sheet 20 be coated on insulating body 10 around.

See also Fig. 4 and shown in Figure 7, when this electric connector 1 in use, earlier driving lever 30 is shaken to making its handle 33 away from grab 243 positions of reinforced sheet 20 and handle 33 is erect, this moment, its portion 35 that exerts pressure did not stop the extension 411 of pressing plate 40, open pressing plate 40, wafer module 60 is placed on the insulating body 10, conducting terminal 12 positions in making its conducting strip and being contained in insulating body 10 are corresponding, then pressing plate 40 is moved to horizontal level, this moment rotating lever 30, make its handle 33 turn to horizontal level, the portion 35 that exerts pressure simultaneously will push the extension 411 of pressing plate 40 downwards, thereby will drive the abutting part 421 of pressing plate 40 and the contact site 423 of auxiliary block 422 and push wafer module 60 downwards, thereby the conducting strip that makes wafer module 60 tightly is crimped on the guiding access of conducting terminal 12, simultaneously the Actuator Division 32 of driving lever 30 is pressed among the grab 243, driving lever 30 is secured to horizontal level, this is about to wafer module 60 and secures to the state that the conducting terminal 12 with electric connector 1 firmly is flexibly connected.

Pressing plate 40 is provided with abutting part 421 and auxiliary block 422 structures, thereby when having overcome pressing plate 40 with wafer module 60 butts, the end that wafer module 60 articulates near driving levers 30 and reinforced sheet 20 upwarps and the drawback that can not well connect with the terminal 12 of insulating body 10, thereby make pressing plate 40 and wafer module 60 contact equilibriums and stable, 12 formation of the conducting strip of wafer module 60 and conducting terminal are electrically conducted reliably.

Need to prove: the cross sectional shape of auxiliary block 422 is not limited only to circle, and it can be square, rhombus or oval or the like.

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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