CN201285830Y - Electric connector - Google Patents

Abstract

An electric connector used for electrically connecting a wafer module and a printed circuit board comprises an insulating body, a plurality of conductive terminals accommodated in the insulating body, a metal reinforcing piece framed at the periphery of the insulating body, as well as a pressure plate and a drive rod which can movably connected with the metal reinforcing piece. The metal reinforcing piece comprises a connecting end, a hinging end corresponding to the connecting end, and two side walls for connecting the connecting end and the hinging end. The drive rod comprises an actuating shaft and a drive shaft extending from one end of the actuating shaft. The actuating shaft comprises a first hinging part, a second hinging part and a pressing part arranged between the first hinging part and the second hinging part, wherein the first hinging part or/and the second hinging part is provided with a sunken part, therefore, the partial high stress on the actuating shaft on the drive rod can be dispersed to achieve the effect of balancing the stress.

Description

Electric connector

[technical field]

The utility model is about a kind of electric connector, refers to a kind of planar lattice array type electric connector of chip module to printed circuit board (PCB) that be used to electrically connect especially.

[background technology]

Planar lattice array type electric connector is widely used in computer realm because of electric property is stable, to electrically connect wafer module and printed circuit board (PCB), realizes the transmission of signal between the two.

First figure and second figure have disclosed a kind of planar lattice array relevant with the utility model (LGA) type electric connector 1 ', be used to electrically connect wafer module (not shown) to printed circuit board (PCB) (not shown), it comprises insulating body 2 ', be located in the metal reinforced sheet 3 ' in the insulating body 2 ' outside, the pressing plate 4 ' that is connected with metal reinforced sheet 3 ' one end, and with the drive rod 5 ' of metal reinforced sheet 3 ' relative other end pivot joint.Drive rod 5 ' comprises that first articulated section 51 ' that can be articulated in metal reinforced sheet 3 ' and second articulated section 52 ', button hold the portion 53 ' that exerts pressure and the drive division 54 ' of pressing plate 4 ', and described drive division 54 ' further comprises the connecting portion 541 ' that extended by second articulated section 52 ', by connecting portion 541 ' the terminal operating portion 542 ' that extends and be bent to form.

But, there is following defective in described electric connector 1 ': drive rod 5 ' is bent to form by bar, overall wire footpath size is all identical, therefore described electric connector 1 ' in use, especially it is stressed when excessive to be in closure state drive rod 5 ', the problem that zonule stress is too concentrated can appear in the portion 53 ' that exerts pressure of drive rod 5 ' and the junction of second articulated section 52 ', even the situation of fracture damage takes place.In addition, the connecting portion of described drive division 54 541 ' is because moment is longer, can in use moderate finite deformation take place and makes the strength loss, and influence is operation normally.

Given this, be necessary to provide a kind of improved electric connector in fact, to overcome the defective of above-mentioned electric connector.

[utility model content]

The purpose of this utility model provides a kind of electric connector, refers to especially a kind ofly can disperse the local heavily stressed of drive rod when closed, effectively improves the electric connector of drive rod mechanical strength.

The purpose of this utility model is such realization: a kind of electric connector, be used to electrically connect wafer module and printed circuit board (PCB), it comprises: insulating body, be contained in pressing plate and drive rod that plurality of conductive terminals, frame in the insulating body is located at the metal reinforced sheet of insulating body periphery, can be dynamically connected with the metal reinforced sheet.Described metal reinforced sheet comprises link, the pivot end relative with link and connects the two side of link and pivot end.Described drive rod comprises action shaft and the driving shaft that is provided with from action shaft one end vertical extent.Described action shaft comprises first articulated section, second articulated section and the portion that exerts pressure between first articulated section and second articulated section, and at least one is provided with depressed part in wherein said first articulated section and second articulated section.

With respect to prior art, the utlity model has following advantage: at least one is provided with depressed part in first articulated section of described drive rod action shaft and second articulated section, can disperse local heavily stressed on the action shaft, reaches the effect of balanced stress.

[description of drawings]

Shown in Figure 1 is a kind of three-dimensional exploded view of the electric connector relevant with the utility model.

Fig. 2 is the three-dimensional combination figure of electric connector shown in Figure 1.

Fig. 3 is the three-dimensional exploded view of the utility model electric connector.

Fig. 4 is the three-dimensional combination figure of the utility model electric connector.

Fig. 5 is the front view of the utility model electric connector drive rod.

[embodiment]

See also Fig. 3 to shown in Figure 5, the utility model is a kind of electric connector 1 that is used to electrically connect wafer module (not shown) and printed circuit board (PCB) (not shown), and it comprises insulating body 2, be contained in pressing plate 4 and drive rod 5 that plurality of conductive terminals (not shown), frames in the insulating body 2 are located at the metal reinforced sheet 3 of insulating body 2 peripheries, can be dynamically connected with metal reinforced sheet 3.

Insulating body 2 is roughly rectangular, and it is provided with the conduction region 21 that is positioned at insulating body 2 middle parts, and conduction region 21 is provided with the continuing surface 22 of supporting wafers module (not shown), and is positioned at the sidewall 23 around the insulating body 2.

Metal reinforced sheet 3 is a frame columnar structure, and its frame is located at the periphery of insulating body 2, to improve the intensity of insulating body 2.Described metal reinforced sheet 3 comprises the link 31 that connects with pressing plate 4, relative with link 31 be used for the pivot end 32 of drive rod 5 pivot joints and be connected link 31 and the two side 33 of pivot end 32.Wherein, link 31 is arranged at intervals with a pair of support slot 311, to articulate with pressing plate 4.The inward at both ends bending extension of pivot end 32 is provided with holding part 321, and described holding part 321 is held with the relevant position button of drive rod 5.Place, the centre position of one sidewall 33 of metal reinforced sheet 3 is provided with the latch part 34 that outwards protrudes out, and is used for cooperating with drive rod 5 fastening pressing plate 4.Four jiaos of places of described metal reinforced sheet 3 also are provided with four location holes 35, so that metal reinforced sheet 3 is fixed on the printed circuit board (PCB) (not shown).

Pressing plate 4 is the hollow metal casing structure, and it comprises the stiff end 41 that is articulated on the metal reinforced sheet 3, relative press-side 42 to fasten with drive rod 5 with stiff end 41.Stiff end 41 both sides bending relatively are provided with two articulated sections 44, and when pressing plate 4 was articulated on the metal reinforced sheet 3, two relative articulated sections 44 were fastened on the support slot 311.Pressing plate 4 has extended strip location division 43 between two articulated sections 44, excessively overturn and bump printed circuit board (PCB) (not shown) to prevent pressing plate 4.Press-side 42 middle bent are extended with press section (not shown), fasten for drive rod 5, and pressing plate 4 is locked in make position.

Drive rod 5 is processed to form by columniform Metallic rod, and it comprises action shaft 51 that it can be articulated in metal reinforced sheet 3 and the driving shaft 52 that extends setting from action shaft 51 1 end approximate vertical.Described action shaft 51 comprises first articulated section 511, second articulated section 512 and be used to detain the portion that exerts pressure 513 of holding pressing plate 4 between first articulated section 511 and second articulated section 512.Described second articulated section 512 promptly is provided with depressed part 5120 away from the tail end of the portion of exerting pressure 513 by escaping material near an end of driving shaft 52, described depressed part 5120 can form local weakness, be convenient to disperse junction (indicate) heavily stressed of the portion of exerting pressure 513 and second articulated section 512, reach the effect of balanced stress.Described driving shaft 52 comprise by second articulated section, 512 terminal vertical extent be provided with the cross section ovalize first connecting portion 521, with directly link to each other rounded second connecting portion 522 in cross section and of first connecting portion 521 by second connecting portion, the 522 terminal operating portions 523 that extend and be bent to form.Described operating portion 523 is crooked arcuation, and is positioned at same plane with second connecting portion 522.Driving shaft 52 can rotate between horizontal level and vertical position, exerts pressure portion's 513 rotations to compress the press section (not shown) on the pressing plate 4 with drive.Wherein, first connecting portion 521 of driving shaft 52 can be pressed into ellipticity by processing modes such as pressure, stone rollers in the horizontal direction, thereby make the cross section ovalize of described first connecting portion 521, and the major diameter of described elliptic cross-section is positioned at the vertical direction of driving shaft 52 distortion, increase the structural rigidity of driving shaft 52 deformation directions with this, reduce the loss of operation strength.

The assembling process of electric connector 1 is as follows: the link 31 and the pivot end 32 that earlier pressing plate 4 are connected and are articulated in metal reinforced sheet 3 with drive rod 5 respectively, again pressing plate 4 and drive rod 5 are rotated to enable possition, insulating body 2 is placed in the metal reinforced sheet 3 away from metal reinforced sheet 3.Then place wafer module (not shown) on insulating body 2, press down pressing plate 4 then, the portion that exerts pressure 53 of rotation of drive rod 5 is pressed on the press section 42 of pressing plate 4 again, the driving shaft 52 that fastens drive rod 5 then is in the latch part 34 of metal reinforced sheet 3, pressing plate 4 and drive rod 5 all are in the close position, thereby wafer module (not shown) and electric connector 1 are conducted.

The utility model is provided with depressed part 5120 at the end away from the portion of exerting pressure 513 by escaping material with second articulated section 512 of drive rod 5 action shafts 51, form local weakness, can disperse the heavily stressed of portion of exerting pressure 513 and 512 junctions, second articulated section, reach the effect of balanced stress; To change its cross sectional shape by processing modes such as pressure, stone rollers in the horizontal direction perpendicular to first connecting portion 521 of the driving shaft 52 of second articulated section 512 in addition, the cross section ovalize of final described first connecting portion 521, and the major diameter of described ellipse is positioned on the vertical direction of driving shaft 5 distortion, increase the structural rigidity of driving shaft 52 deformation directions with this, reduce the loss of operation strength.

In the present embodiment, only material fleeing area territory such as depressed part 5120 are set in second articulated section 512 of action shaft 51, can also the material fleeing area territory be set at the near zone at any heavily stressed place of drive rod 5 action shafts 51 in fact, as can also depressed part being set on first articulated section 511 or on first articulated section 511 and second articulated section 512, depressed part being set simultaneously to form local weakness, reach the effect of balanced stress, prevent that stress from too concentrating and damage drive rod 5; Also pass through to change the partial cross section shape of driving shaft 52 in addition in the present embodiment, as first articulated section 521 being flattened in the horizontal direction the vertical direction that makes its cross section ovalize and oval major diameter be positioned at driving shaft 52 distortion, increase the structural rigidity of driving shaft 52 deformation directions with this, reduce the loss of operation strength.In addition, second connecting portion 522 even the operating portion 523 of driving shaft 52 can also be flattened the structural rigidity that increases driving shaft 52 deformation directions by horizontal direction, reduce the loss of operation strength.

Present embodiment not only is provided with the material fleeing area territory on drive rod 5, depressed part 5120 as second articulated section 512, the partial cross section shape that also changes driving shaft 52 simultaneously reaches balanced stress, strengthens the structural rigidity of drive rod 5, thereby effectively strengthens the mechanical stability of drive rod 5.Also can select one to improve the mechanical property of drive rod 5 in fact, realize the stable electric connection of electric connector 1.

The above only is a kind of execution mode of the present utility model, it or not whole or unique execution mode, the variation of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model specification is claim of the present utility model and contains.

Claims (9)

1. [claim 1] a kind of electric connector, be used to electrically connect chip module and printed circuit board (PCB), it comprises: insulating body, be contained in the plurality of conductive terminals in the insulating body, frame is located at the metal reinforced sheet of insulating body periphery, the pressing plate and the drive rod that can be dynamically connected with the metal reinforced sheet, this metal reinforced sheet comprises link, the pivot end relative with link, this drive rod comprises action shaft and the driving shaft that is provided with from action shaft one end vertical extent, this action shaft comprises first articulated section, second articulated section and the portion that exerts pressure between first articulated section and second articulated section, it is characterized in that: at least one is provided with depressed part in described first articulated section and second articulated section.
2. [claim 2] electric connector as claimed in claim 1 is characterized in that: described depressed part is located at second and is stated the portion of connecing.
3. [claim 3] electric connector as claimed in claim 1 is characterized in that: described driving shaft comprises second connecting portion that directly links to each other by first connecting portion of the terminal vertical extent setting in second articulated section, with first connecting portion and the operating portion of being located at the second connecting portion end.
4. [claim 4] electric connector as claimed in claim 3 is characterized in that: the cross section ovalize of described first connecting portion is provided with.
5. [claim 5] electric connector as claimed in claim 4 is characterized in that: the major diameter of the elliptic cross-section of described first connecting portion is positioned at the vertical direction of deformation of driving shaft.
6. [claim 6] electric connector as claimed in claim 4 is characterized in that: the rounded setting in the cross section of described second connecting portion.
7. [claim 7] electric connector as claimed in claim 3 is characterized in that: described operating portion is crooked arcuation, and with second connecting portion in same plane.
8. [claim 8] electric connector as claimed in claim 1 is characterized in that: described metal reinforced sheet is provided with to match with drive rod and is used to fasten the latch part of pressing plate.
9. [claim 9] electric connector as claimed in claim 8 is characterized in that: described latch part outwards protrudes out setting by the place, centre position of a sidewall of metal reinforced sheet.

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