CN201178236Y - Electric connector - Google Patents

Abstract

The utility model relates to an electrical connector for electrically connecting a chip module to a printed circuit board. The electrical connector comprises an insulating body, a fixed piece, and both a press plate and a shift rod connected movably and pivotally to the fixed piece. A tongue piece capable of supporting the compression joint with the shift rod is arranged on the press plate. A clamping mechanism is also arranged on the fixed piece. The clamping mechanism comprises a main body extending from the fixed piece and a clamping part extending from the main body in a folded manner. When the press plate is in the closed state, the clamping part can be clamped on the tongue piece, thereby effectively ensuring the press plate in the clamped state. A raised part is formed on the main body of the clamping mechanism. When the shift rod is rotated to a predetermined position, the shift rod can push the raised part to detach the clamping part from the tongue piece, thereby opening the press plate. The clamping mechanism is designed to ensure that the press plate is still in the clamped state when the shift rod is opened under an improper force and thereby ensuring the normal operation of the chip module.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, refers in particular to a kind of electric connector that electrically connects the chip module to printed circuit board (PCB).

[background technology]

Fig. 1 is a kind of existing LGA (Land Grid Arrary, planar lattice array) the type electric connector 100, be used to electrically connect chip module (not indicating) to printed circuit board (PCB) (not shown), comprise the insulating body (not shown), the fixture 2 ' that is located in the insulating body periphery that are installed with plurality of conductive terminals (not shown), be articulated in the pressing plate 3 ' of fixture 2 ' one end and be articulated in the driving lever 4 ' of the fixture 2 ' other end, its center platen 3 ' is provided with a tongue piece 31 ', and driving lever 4 ' is provided with the portion 41 ' that exerts pressure.After the chip module is assembled to electric connector 100, closed pressing plate 3 ' makes it be crimped on chip module top, rotating driving lever 4 ' then is crimped on the tongue piece 31 ' its portion 41 ' that exerts pressure, and then fasten driving lever 4 ' to fixture 2 ', at this moment, but pressing plate 3 ' is crimping chip module under the crimping of driving lever 4 ', has guaranteed that effectively excellent electrical property contacts between chip module and conducting terminal.

Yet, there is following defective in this kind electric connector 100: electric connector 100 in use, if being subjected to improper external force influence, driving lever 4 ' comes off from fixture 2 ', can make pressing plate 3 ' be in opening, normal crimping chip module, chip module and partially conductive terminal are disengaged, influence the contact quality of whole electric connector 100.

Therefore, be necessary to design a kind of new electric connector to overcome above-mentioned shortcoming.

[utility model content]

The purpose of this utility model is to provide a kind of electric connector, and under the situation that driving lever breaks away from, its fixture still can keep the button of pressing plate to hold state.

For achieving the above object, the utility model adopts following technical scheme: a kind of electric connector, be used to electrically connect chip module and printed circuit board (PCB), comprise insulating body, fixture, movable pressing plate that is articulated in fixture and driving lever, pressing plate is provided with a tongue piece for the driving lever crimping, and fixture is provided with a button and holds mechanism, and it comprises the attaching part that main part and the bending of autonomous body are extended, when pressing plate was in closure state, described attaching part can be detained and be held in the tongue piece top.

Compared with prior art, the utility model electric connector is held mechanism by be provided with a button at fixture, and when driving lever was subjected to improper external force and opens, it still can be withheld on the tongue piece of pressing plate, has guaranteed the operate as normal of chip module.

[description of drawings]

Fig. 1 is a kind of stereogram of existing electric connector.

Fig. 2 is the three-dimensional combination figure of the utility model electric connector, and its center platen and driving lever be crimping pressing plate not all.

Fig. 3 is the stereogram of the fixture of the utility model electric connector.

Fig. 4 is the three-dimensional combination figure of the utility model electric connector, and wherein driving lever and pressing plate all are in closure state.

Fig. 5 is the three-dimensional combination figure of the utility model electric connector, and wherein driving lever breaks away from fixture, and pressing plate still is in closure state.

[embodiment]

See also shown in Fig. 2,3, be the utility model one most preferred embodiment, in the present embodiment, electric connector 1 is to be used to electrically connect chip module 5 and printed circuit board (PCB) (not shown), and it mainly comprises insulating body (not shown), fixture 2, movable be articulated in the pressing plate 3 on the fixture 2 and movable be articulated on the fixture 2 and pressing plate 3 can be pressed on driving lever 4 on the chip module 5.

In the present embodiment, the architectural feature of fixture 2 is just in order better to explain the utility model, the utility model is not constituted any restriction, as shown in Figure 3, fixture 2 comprises first diapire 21, second diapire 22 and connects the connecting portion 24 of first diapire 21 and second diapire 22.First diapire 21 extends upward and is provided with antetheca 212, offers a pair of draw-in groove 2121 on it.Second diapire, 22 two ends are provided with the U-shaped retaining sheet 221 that a pair of bending is extended, and wherein a retaining sheet 221 extends a L shaped button in horizontal direction to another retaining sheet 221 and holds mechanism 23.This button is held mechanism 23 and is comprised the attaching part 232 that extends to the bending of first diapire, 21 directions from retaining sheet 221 extended main parts 231 and autonomous body 231, and main part 23 extends upward and is provided with a protuberance 2311, the attaching part 232 terminal lead-in chamfered 2321 that form.Wherein a junction 24 extends upward and is provided with circular arc trip 241 and holds driving lever 4 with button.

Pressing plate 3 is the platy structure of a hollow, it comprises the side plate 311 that the relative two side direction fixtures 2 of a main board 31 and autonomous agent plate 31 extend, extend respectively on the other two opposite sides of main board 31 and be provided with an a pair of hook part 312 and a tongue piece 313, wherein in the movable draw-in groove that is held in fixture 2 2121 in hook part 312.

Driving lever 4 comprises the pressing lever 402 that a drive rod 401 reaches perpendicular to drive rod 401, pressing lever 402 comprises a force section 4021 to a lateral buckling, pressing lever 402 is articulated in the retaining sheet 221 of fixture 2, and force section 4021 can be pressed on the tongue piece 313 of pressing plate 3 along with the rotation of pressing lever 402.

As shown in Figure 2, at this moment, chip module 5 is assembled to electric connector 1, the top that is crimped on chip module 5 of pressing plate 3 natures, and the button that is connected to of its tongue piece 313 natures is held on the attaching part 232 of mechanism 23, and the force section 4021 of driving lever 4 is contact tongue 313 not.Rotation driving lever 4 slowly, its force section 4021 is crimped on the tongue piece 313, fasten to the process of the trip 241 of fixture 2 at the drive rod 401 of driving lever 4, tongue piece 313 is subjected to the downforce effect to move to the below of attaching part 232 along lead-in chamfered 2321, the below that moves to attaching part 232 that the setting of lead-in chamfered 2321 is more prone to when making tongue piece 313 stressed.Please consult shown in Figure 4ly simultaneously, tongue piece 313 makes pressing plate 3 firm being crimped on the chip module 5 under the common crimping of force section 4021 and attaching part 232, and then realizes that excellent electrical property contacts between chip module 5 and conducting terminal.

As shown in Figure 5, when driving lever 4 breaks away from the trip 241 of fixture 2 because of being subjected to improper external force effect, its force section 4021 also breaks away from the tongue piece 313 of pressing plate 3, but the attaching part 232 that button is held mechanism 23 is still detained and is held in tongue piece 313 tops, has effectively guaranteed the top that is crimped on chip module 5 that pressing plate 3 is firm.When continuing the anglec of rotation on this basis, driving lever 4 surpasses 90 when spending, the pressing lever 402 of driving lever 4 can touch button and hold the protuberance 2311 that is provided with in the mechanism 23, continuation rotation along with driving lever 4, pressing lever 402 will promote protuberance 2311 makes attaching part 232 move disengaging tongue piece 313, and then can open pressing plate 3.

The utility model emphasis structure is: fixture 2 is provided with a button and holds mechanism 23, and when driving lever 4 was subjected to improper external force and opens, button was held mechanism 23 and still can be withheld on the tongue piece 313 of pressing plate 3, has guaranteed the operate as normal of chip module 5.Fixture 2 also can be other shape, for breakaway-element designs, fixture 2 is held mechanism 23 for being installed on the printed circuit board (PCB) or being used for fixing the button that the parts etc. of driving lever 4 all can be provided with in the utility model on the insulating body, hold state as connecting portion 24 with the button of guaranteeing pressing plate 3.

Should be understood that, 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 (8)

1. electric connector, be used to electrically connect chip module and printed circuit board (PCB), comprise insulating body, fixture, movable pressing plate that is articulated in fixture and driving lever, pressing plate is provided with a tongue piece for the driving lever crimping, it is characterized in that: described fixture is provided with a button and holds mechanism, it comprises the attaching part that main part and the bending of autonomous body are extended, and when pressing plate was in closure state, described attaching part can be detained and be held in the tongue piece top.

2. electric connector as claimed in claim 1 is characterized in that: described fixture comprises first diapire, second diapire and connects first diapire and the connecting portion of second diapire.

3. electric connector as claimed in claim 2 is characterized in that: offer a pair of draw-in groove on described first diapire and be used to articulate pressing plate.

4. electric connector as claimed in claim 2 is characterized in that: the retaining sheet that the described second diapire two ends are provided with a pair of bending extension is used to articulate driving lever.

5. electric connector as claimed in claim 4 is characterized in that: described button is held mechanism and is extended by retaining sheet.

6. electric connector as claimed in claim 2 is characterized in that: described attaching part extends to the bending of the first diapire direction.

7. electric connector as claimed in claim 6 is characterized in that: described attaching part is provided with a lead-in chamfered.

8. electric connector as claimed in claim 1 is characterized in that: described main part is provided with a protuberance, when driving lever rotarily opens, can promote above-mentioned protuberance and make attaching part break away from tongue piece.

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