CN201178236Y - electrical connector - Google Patents

Abstract

An electrical connector for electrically connecting a chip module and a printed circuit board, which includes an insulating body, a fixing piece, a movable pressure plate pivotally connected to the fixing piece, and a lever. The pressure plate is provided with a lever for crimping The tongue piece, the fixing part is also provided with a buckling mechanism, which includes a main body extending from the fixing part and a buckling part bent and extending from the main body. When the pressing plate is in the closed state, the buckling part can be buckled and pressed on the tongue piece, which effectively ensures that the pressing plate is in the buckled state. A protruding part is provided on the main part of the buckling structure. When the driving lever is rotated to a certain position, the driving lever will push the protruding part to separate the buckling part from the tongue, thereby opening the pressing plate. The setting of the buckling mechanism enables the pressing plate to still be in the buckling state when the lever is opened by improper external force, which ensures the normal operation of the chip module.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector capable of electrically connecting a chip module to a printed circuit board.

【Background technique】

FIG. 1 is an existing LGA (Land Grid Array) type electrical connector 100, which is used to electrically connect a chip module (not shown) to a printed circuit board (not shown), including a container An insulating body (not shown) with a number of conductive terminals (not shown), a fixing part 2' surrounding the outer periphery of the insulating body, a pressure plate 3' pivotally connected to one end of the fixing part 2', and a pivoting part connected to the fixing part 2' The driving rod 4' at the other end, wherein the pressing plate 3' is provided with a tongue piece 31', and the driving rod 4' is provided with a pressing portion 41'. After the chip module is assembled to the electrical connector 100, close the pressure plate 3' to make it crimp above the chip module, and then rotate the lever 4' to make the pressing part 41' crimp on the tongue 31', and then buckle Close the lever 4' to the fixing part 2'. At this time, the pressure plate 3' can be crimped to the chip module under the crimping of the lever 4', effectively ensuring good electrical contact between the chip module and the conductive terminal.

However, this kind of electrical connector 100 has the following defects: when the electrical connector 100 is in use, if the lever 4' is affected by an improper external force and falls off from the fixing part 2', the pressing plate 3' will be in an open state and cannot be crimped normally. The chip module makes the chip module out of contact with some conductive terminals, which affects the contact quality of the entire electrical connector 100 .

Therefore, it is necessary to design a new electrical connector to overcome the above disadvantages.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector, when the lever is disengaged, the fixing part can still keep the clamping state of the pressing plate.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an electrical connector for electrically connecting the chip module and the printed circuit board, including an insulating body, a fixing part, a movable pressing plate pivotally connected to the fixing part and The lever and the pressing plate are provided with a tongue for crimping the lever, and the fixing part is provided with a buckling mechanism, which includes a main body and a crimping part bent and extended from the main body. When the pressing plate is in a closed state, the crimping part can be Snaps over the tongue.

Compared with the prior art, the electrical connector of the present utility model is equipped with a buckling mechanism on the fixing part. When the lever is opened by improper external force, it can still be buckled and pressed on the tongue of the pressure plate, ensuring the normal operation of the chip module. .

【Description of drawings】

Fig. 1 is a perspective view of a conventional electrical connector.

Fig. 2 is a three-dimensional assembled view of the electrical connector of the present invention, in which the pressure plate and the lever are not crimped to the pressure plate.

Fig. 3 is a perspective view of the fixing part of the electrical connector of the present invention.

Fig. 4 is a three-dimensional assembled view of the electrical connector of the present invention, wherein both the lever and the pressing plate are in a closed state.

Fig. 5 is a three-dimensional assembled view of the electrical connector of the present invention, wherein the lever is separated from the fixing part, and the pressing plate is still in the closed state.

【Detailed ways】

Please refer to Figures 2 and 3, which are a preferred embodiment of the present invention. In this embodiment, the electrical connector 1 is used to electrically connect the chip module 5 and the printed circuit board (not shown). It mainly includes an insulating body (not shown), a fixing member 2, a movable pressing plate 3 pivotally connected to the fixing member 2, and a movable pressing plate 3 pivotally connected to the fixing member 2 and capable of pressing the pressing plate 3 on the chip module 5 The lever 4.

In this embodiment, the structural features of the fixing member 2 are only for better explaining the utility model, and do not constitute any limitation to the utility model. As shown in FIG. 3 , the fixing member 2 includes a first bottom wall 21, a second The bottom wall 22 and the connecting portion 24 connecting the first bottom wall 21 and the second bottom wall 22 . A front wall 212 extends upward from the first bottom wall 21 and defines a pair of locking slots 2121 thereon. Two ends of the second bottom wall 22 are provided with a pair of bent and extended U-shaped holding pieces 221 , one of the holding pieces 221 extends horizontally to the other holding piece 221 to form an L-shaped locking mechanism 23 . The locking mechanism 23 includes a main body 231 extending from the holding piece 221 and a crimping portion 232 bent and extending from the main body 231 toward the first bottom wall 21. A guiding slope 2321 is formed at the end of the portion 232 . One of the connecting portions 24 extends upwards to define an arc-shaped hook 241 for buckling the lever 4 .

The pressure plate 3 is a hollow plate-shaped structure, which includes a main body plate 31 and side plates 311 extending from opposite sides of the main body plate 31 to the fixing member 2, and a pair of hooks are respectively extended on the other two opposite sides of the main body plate 31. part 312 and a tongue 313 , wherein the hook part 312 is movably held in the slot 2121 of the fixing part 2 .

The driving lever 4 includes a driving rod 401 and a pressing rod 402 perpendicular to the driving rod 401. The pressing rod 402 includes a force application portion 4021 bent to one side. The pressing rod 402 is pivotally connected to the holding piece 221 of the fixing member 2. , and the force applying portion 4021 can be pressed against the tongue piece 313 of the pressing plate 3 as the pressing lever 402 rotates.

As shown in Figure 2, at this time, the chip module 5 is assembled to the electrical connector 1, the pressure plate 3 is naturally crimped on the top of the chip module 5, and its tongue 313 is naturally abutted against the crimping part of the buckle mechanism 23. 232 , the force applying portion 4021 of the driving lever 4 does not contact the tongue piece 313 . Slowly rotate the lever 4 so that the force-applying part 4021 is pressed against the tongue 313. During the process of the driving rod 401 of the lever 4 being fastened to the hook 241 of the fixing part 2, the tongue 313 is pressed down. The function moves to the bottom of the crimping portion 232 along the guiding slope 2321 , and the setting of the guiding slope 2321 makes it easier for the tongue 313 to move to the bottom of the crimping portion 232 when it is stressed. Please refer to Fig. 4 at the same time, the tongue piece 313 is crimped together by the force applying part 4021 and the crimping part 232, so that the pressure plate 3 is firmly crimped on the chip module 5, and then realizes the connection between the chip module 5 and the conductive terminal. Good electrical contact.

As shown in Figure 5, when the lever 4 is separated from the hook 241 of the fixing part 2 due to improper external force, its force application part 4021 is also separated from the tongue 313 of the pressure plate 3, but the buckling part 232 of the buckling mechanism 23 is still buckled. Being held above the tongue piece 313 effectively ensures that the pressure plate 3 is firmly crimped on the top of the chip module 5 . When the driving lever 4 continues to rotate at an angle exceeding 90 degrees on this basis, the pressing rod 402 of the driving lever 4 will touch the protrusion 2311 provided on the buckle mechanism 23, and as the driving lever 4 continues to rotate, the pressing rod 402 will Pushing the protruding part 2311 makes the holding part 232 move away from the tongue piece 313 , and then the pressing plate 3 can be opened.

The key structure of the utility model is: the fixing part 2 is provided with a buckling mechanism 23, when the lever 4 is opened by improper external force, the buckling mechanism 23 can still be buckled and pressed on the tongue 313 of the pressure plate 3, which ensures the safety of the chip module 5. normal work. The fixing part 2 can also be other shapes, such as the disconnecting design of the connecting part 24, the fixing part 2 being installed on the printed circuit board or the parts used for fixing the driving lever 4 on the insulating body, etc., all can be arranged in the utility model. The buckling mechanism 23 to ensure the buckling state of the pressing plate 3.

It should be pointed out that the above description is only one embodiment of the utility model, not all or the only implementation manner, any equivalent changes adopted by those of ordinary skill in the art to the technical solution of the utility model by reading the description of the utility model, All are covered by the claims of the present utility model.

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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