CN201112929Y - Fixing structure and electric connector using the same - Google Patents

Abstract

The utility model relates to a fixed structure for fixing a wafer module on a circuit board, which comprises a fixing frame assembled on the circuit board, and a press plate and a rocker articulated the fixing frame. The fixing frame is equipped with a basal body, and the four corners of the basal body are provided with through holes; wherein, the fixed structure also comprises gaskets fastened on the two sides of the through hole. An electrical connector which uses the fixed structure can electrically connect the wafer module to the circuit board, and comprises an insulating body containing a plurality of conductive terminals and the fixed structure arranged outside the insulating body. Because the gasket in the fixed structure is fastened on the two sides of the through hole, the through hole does not be required to reserve the occupied space for assembling the gasket, thereby reducing the diameter of the through hole for the fixing frame basal body containing a fastening piece to extend the limit of the minimum diameter of the fastening pieces(for example, bolts and screws), and further meeting the requirement of expanding the selection range of the fastening pieces.

Description

A kind of fixed structure and use the electric connector of this fixed structure

[technical field]

The utility model is about a kind of fixed structure and uses the electric connector of this fixed structure, refers in particular to a kind of electric connector that the wafer module can be connected to the fixed structure on the circuit board and use this fixed structure.

[background technology]

At present, integrated application along with systems technologies such as multimedia, communication and computers, no matter be desktop computer or mobile computer, its function from strength to strength, the design of main frame is also more complicated, and the speed of update is also accelerated day by day, for adapting to this development trend, industry generally adopts electric connector to electrically connect the wafer module to circuit board, is convenient to maintenance and renewal like this.A kind of electric connector of planar grid array relevant with the utility model comprise insulating body, be placed in plurality of conductive terminals in the insulating body, be located in the insulating body outside the metal reinforced sheet, be articulated in metal reinforced sheet one end in order to compress the pressing plate of wafer module, and being articulated in the driving lever that the metal reinforced sheet other end can fasten with pressing plate, this electric connector of planar grid array further comprises the packing rings that are mounted on four jiaos of places of metal reinforced sheet.

The metal reinforced sheet is a hollow frame columnar structure, it comprises iron plate down, be articulated in pressing plate one end and extend upward the antetheca of setting, be articulated in driving lever one end and extend upward the rear wall of setting, extend upward from two relative outer rims of iron plate down between antetheca and the rear wall sidewall is set from iron plate down from following iron plate.In addition, the Si Jiaochu of the following iron plate of metal reinforced sheet is provided with circular port.

Packing ring is fixed in the circular port at four jiaos of places of metal reinforced sheet, and it comprises that the center is the base portion of circular hole and the holding parts that extend mind-set the same side in being somebody's turn to do.Around the holding parts on the upper side the position be provided with the grooves of four average configurations.

Use locking part, as screw, when electric connector was fixed in printed circuit board (PCB), the screw rod of screw passed the circular hole at packing ring center, and nut is provided with a side of holding parts near packing ring.Yet, screw fixedly electric connector to the printed circuit board (PCB) nut that must satisfy after tightening has at least a corner to be pressed on the following iron plate of metal reinforced sheet, because the circular port that four jiaos of places of the following iron plate of metal reinforced sheet are provided with not only will pass for the screw rod of screw, and want the fixing packing ring, the aperture of the circular port that four jiaos of places of iron plate are provided with under causing is bigger, therefore must use screw with larger diameter nut, otherwise the risk that exists locking to lose efficacy; There is minimum limit in the diameter that is nut, thereby causes the scope of selecting for use of screw to be dwindled.

In view of above-mentioned condition, necessaryly provide a kind of novel electric connector to solve the defective that exists in the prior art scheme.

[utility model content]

The technical problem that the utility model solved provides a kind of fixed structure and uses the electric connector of this fixed structure, this fixed structure and use the electric connector of this fixed structure to expand to be used for fixing the scope of selecting for use of the locking part of electric connector to the printed circuit board (PCB).

For solving above technical problem, the utility model relates to a kind of fixed structure, in order to the wafer module is fixed on the circuit board, it comprises pressing plate and the rocking bar that is mounted on the retaining frame on the circuit board and is articulated in retaining frame, retaining frame is provided with matrix, four jiaos of places of matrix are provided with through hole, and wherein, fixed structure also comprises the packing ring that is fastened in the through hole both sides.

Use the electric connector of said fixing structure, can electrically connect the wafer module to circuit board, the fixed structure that it comprises the insulating body that contains plurality of conductive terminals and is located at the insulating body periphery, fixed structure comprises pressing plate and the rocking bar that is mounted on the retaining frame on the circuit board and is articulated in retaining frame, retaining frame is provided with matrix, four jiaos of places of matrix are provided with through hole, and wherein, fixed structure also comprises the packing ring that is fastened in the through hole both sides.

The prior art relevant with the utility model relatively, the utlity model has following advantage: the packing ring in the fixed structure is by being fastened in the through hole both sides, therefore the through hole at four jiaos of places of retaining frame matrix need not be reserved the assembled washer occupation space, the through-hole diameter that thereby the retaining frame matrix can be accommodated locking part dwindles, reach the restriction of relaxing locking part (as the screw screw rod) minimum diameter, and screw is a standard component, increased the scope of selecting for use of selecting for use scope must expand screw of screw rod, expanded the needs that locking part is selected scope for use thereby satisfy.

[description of drawings]

Fig. 1 is the three-dimensional combination figure of the utility model fixed structure.

Fig. 2 is the stereogram of fixed structure middle washer shown in Figure 1.

Fig. 3 is to use the three-dimensional exploded view of the electric connector of fixed structure shown in Figure 1.

Fig. 4 is to use the three-dimensional combination figure of the electric connector of fixed structure shown in Figure 1.

Fig. 5 is to use the three-dimensional combination figure of another angle of the electric connector of fixed structure shown in Figure 1.

[embodiment]

Below in conjunction with the drawings and specific embodiments to this fixed structure and use the electric connector of this fixed structure to be described further.

See also Fig. 1 to shown in Figure 2, it has disclosed a kind of fixed structure 90 of the present utility model, in order to wafer module (not shown) is fixed on the circuit board (not shown), it comprises the retaining frame 50 that is mounted on the circuit board, be articulated in retaining frame 50 1 ends in order to the pressing plate 60 that compresses the wafer module, be articulated in the rocking bar 70 that retaining frame 50 other ends can fasten with pressing plate 60, and the packing ring 80 that is fastened in retaining frame 50.

See also Fig. 3 to shown in Figure 5, it has disclosed a kind of electric connector 100 that uses said fixing structure 90 of the present utility model, can electrically connect the wafer module to circuit board, it comprises insulating body 30 that contains plurality of conductive terminals (not graphic) and the fixed structure 90 of being located at insulating body 30 peripheries.

The roughly rectangular structure of insulating body 30, it comprises the resettlement section 304 that is positioned at insulating body 30 centre positions and is located at resettlement section 304 side wall 308 all around.Resettlement section 304 be provided with the supporting wafers module continuing surface 305, with continuing surface 305 relative installed surfaces 306 to be mounted to printed circuit board (PCB), and run through continuing surface 305 and installed surface 306 and be the plurality of conductive terminals accepting groove (not shown) of arranged.The corresponding plurality of conductive terminals that contains in the conducting terminal accepting groove, conducting terminal one end extend continuing surface 305 with the wafer module on corresponding conductive spacer (not shown) elasticity butt, the other end is implanted with the tin ball (not shown) that extends installed surface 306, conducting terminal is soldered on the corresponding pad (not shown) on the circuit board.

Retaining frame 50 is a frame columnar structure, it comprises matrix 502, articulate pressing plate 60 1 ends from matrix 502 extend upward setting antetheca 504, articulate rocking bar 70 1 ends and extend upward from matrix 502 that two relative outer rims from matrix 502 extend upward setting and parallel relative sidewall 506 between the rear wall 508 of setting and antetheca 504 and the rear wall 508.Matrix 502 central authorities offer the opening 503 of accommodating insulating body 30, close on rear wall 508 places and are provided with groove 513.Offer a pair of draw-in groove 509 on the antetheca 504, in order to fixing pressing plate 60, rear wall 508 two ends are provided with the retaining sheet 510 that the bending of a subtend opening 503 directions is extended.Near retaining sheet 510 from two relative outer rims of matrix 502 backward wall 508 extensions support chip 512 is set, retaining sheet 510 and support chip 512 stably are articulated in rocking bar 70 on the retaining frame 50 together; Retaining frame 50 also is provided with circular arc grab 514, in order to locking rocking bar 70.In addition, the Si Jiaochu of matrix 502 is provided with manhole 516.In through hole 516 side near sidewalls 506, matrix 502 also forms the holding hole 505 of fixing packing ring 80 with sidewall 506.

See also shown in Figure 2ly, packing ring 80 is fastened in manhole 516 both sides of retaining frame 50, the trip 801 that it comprises base portion 800 and upwards protrudes out setting from base portion 800.Base portion 800 is connected by a pair of elastic arm 802 with elastic effect, can improve packing ring 80 because of the too small elasticity that causes of trip 801 length is low excessively, causes trip 801 Root Stress excessive easily, the problem of trip 801 therefore easy rupture failures.A pair of elastic arm 802 forms and the similar centre bore 806 of retaining frame 50 manholes 516 hole shapes, and centre bore 806 is interconnected with through hole 516.Packing ring 80 base portions 800 also are provided with a pair of abutment walls 803 that roughly is column, and abutment walls 803 is divided into the both sides of trip 801 symmetrically, and abutment walls 803 can be resisted against the matrix 502 of retaining frame 50 through holes 516 both sides.

Rocking bar 70 is formed through bending by Metallic rod, and it comprises the holding parts 702 that is articulated on the retaining frame 50 and from holding parts 702 terminal vertically extending action bars 704.Holding parts 702 is provided with a portion that exerts pressure 706 that can fasten with pressing plate 60 in its middle part, action bars 704 is provided with the handle 708 of outside bending in end.

Pressing plate 60 is the hollow metal casing structure, and it comprises the pivot end 602 that is articulated on the retaining frame 50, relative press-side 606 to fasten with rocking bar 70 with pivot end 602, and an opposite side 604 that connects pivot end 602 and press-side 606.Pivot end 602 both sides bending relatively are provided with two holding parts 603, and when pressing plate 60 was articulated on the retaining frame 50, two relative holding parts 603 were fastened on draw-in groove 509.Pressing plate 60 has extended strip location division 605 between two holding parts 603, excessively overturn and the bump printed circuit board (PCB) to prevent pressing plate 60.Press-side 606 middle bent are extended with press section 610, and the portion that exerts pressure 706 that is convexly equipped with holding parts 702 middle parts with rocking bar 70 fastens, and pressing plate 60 is locked in make position.Dual-side 604 is cambered surface, and its middle part is provided with the abutting part (not shown) towards insulating body 30 bendings, to compress the wafer module.Side 604 outer ledges are provided with the lower extending part 608 that extends to the retaining frame direction.

Stop ring 40 is circular, and its inside circumference is provided with retaining sheet 401.

The assembling process of electric connector 100 is as follows: earlier pressing plate 60 and rocking bar 70 are articulated in respectively on the antetheca 504 and rear wall 508 of retaining frame 50, again pressing plate 60 and rocking bar 70 are rotated to enable possition away from retaining frame 50, the insulating body 30 that group is provided with conducting terminal places the opening 503 of retaining frame 50, then packing ring 80 is fastened in manhole 516 both sides at 502 4 jiaos of places of matrix of retaining frame 50, at last stop ring 40 is sheathed on the end of the holding parts 702 of rocking bar 70, it is positioned at retaining frame 50 outsides.

After electric connector 100 is welded in circuit board, when pressing plate 60 and rocking bar 70 all are in enable possition away from retaining frame 50, place the wafer module on insulating body 30, press down the press-side 606 of pressing plate 60 then, press-side 606 is stretched in the groove 513 of retaining frame 50, rotating rocker 70 again, the portion that exerts pressure 706 of rocking bar 70 is pressed on the press section 610 of pressing plate 60, fasten the grab 514 of handle 708 then in retaining frame 50, stop ring 40 is connected on the support chip 512, pressing plate 60 and rocking bar 70 all are in the close position, thereby wafer module and electric connector 100 are conducted.

For more firm electric connector 100 is positioned on the circuit board, need usually to rely on screw locking parts such as (not shown) that electric connector 100 and circuit board are fixed together.In present embodiment, packing ring 80 in the fixed structure 90 holds the both sides of being fixed in retaining frame 50 through holes 516 by trip 801 and the abutment walls 803 that upwards protrudes out setting, therefore the through hole 516 at 502 4 jiaos of places of retaining frame 50 matrixes need not be reserved assembled washer 80 occupation space, thereby retaining frame 50 matrixes 502 can be accommodated through hole 516 reduced of locking part, thereby reach the restriction of relaxing locking part (as the screw screw rod) minimum diameter, and screw is a standard component, increased the scope of selecting for use of selecting for use scope must expand screw of screw rod, expanded the needs that locking part is selected scope for use thereby satisfy.In addition; packing ring 80 base portions 800 in the fixed structure 90 are connected by a pair of elastic arm 802 with elastic effect; it is low excessively because of the too small elasticity that causes of trip 801 length to improve packing ring 80; easily cause trip 801 Root Stress excessive; the problem of trip 801 easy rupture failures; effective chip shield 80 has prolonged useful life of packing ring 80.

Need to prove that the above embodiment only is a preferred embodiment of the present utility model, other any improvement conversion of carrying out on the present embodiment basis also should not break away from the technical solution of the utility model.The variation of any equivalence that those of ordinary skills take the technical solution of the utility model by reading the utility model specification is the utility model claim and contains.

Claims (10)

1. fixed structure, in order to the wafer module is fixed on the circuit board, it comprises pressing plate and the rocking bar that is mounted on the retaining frame on the circuit board and is articulated in retaining frame, retaining frame is provided with matrix, four jiaos of places of matrix are provided with through hole, and it is characterized in that: described fixed structure also comprises the packing ring that is fastened in the through hole both sides.

2. fixed structure as claimed in claim 1 is characterized in that: described packing ring comprises base portion and is extended upward the trip of setting by base portion.

3. fixed structure as claimed in claim 2 is characterized in that: described base portion is connected by a pair of elastic arm.

4. fixed structure as claimed in claim 3 is characterized in that: described a pair of elastic arm forms centre bore, and centre bore is communicated with through hole.

5. fixed structure as claimed in claim 2 is characterized in that: described base portion is provided with the abutment walls that can be connected to the retaining frame matrix in the trip both sides.

6. fixed structure as claimed in claim 1 is characterized in that: described retaining frame matrix extends upward and is provided with sidewall, and sidewall and matrix form holding hole.

7. electric connector, can electrically connect the wafer module to circuit board, the fixed structure that it comprises the insulating body that contains plurality of conductive terminals and is located at the insulating body periphery, fixed structure comprises pressing plate and the rocking bar that is mounted on the retaining frame on the circuit board and is articulated in retaining frame, retaining frame is provided with matrix, four jiaos of places of matrix are provided with through hole, and it is characterized in that: described fixed structure also comprises the packing ring that is fastened in the through hole both sides.

8. electric connector as claimed in claim 7 is characterized in that: described packing ring comprises base portion and is extended upward the trip of setting by base portion.

9. electric connector as claimed in claim 7 is characterized in that: described base portion is connected by a pair of elastic arm, and elastic arm forms the centre bore that is communicated with through hole.

10. electric connector as claimed in claim 7 is characterized in that: described base portion is provided with the abutment walls that can be connected to the retaining frame matrix in the trip both sides.

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