TWI840707B - Chip socket - Google Patents

Abstract

A chip socket comprises a housing loaded with terminals, a limiting seat surrounding the housing to define a chip accommodating cavity and a locking mechanism. The accommodating cavity is provided with an upward opening and a plurality of inner wall surfaces. The locking mechanism comprises an operation part and a fixing part, and the operation part drives the fixing part to apply forces to the chip so as to fix the chip in the chip accommodating cavity or release the fixing part from the chip. The locking mechanism can abut against the chip to achieve fixing of the chip, and can also be far away from the chip to facilitate free taking and placing of the chip.

Description

Chip connector

The present invention relates to a chip connector, and more particularly to a chip connector with a locking mechanism.

China Utility Model Patent No. CN202712640U discloses a chip connector for electrically connecting a chip module, including a base, a conductive terminal held on the base, the base defines an upper surface supporting the chip module, a lower surface opposite to the upper surface, and a plurality of terminal slots penetrating the two surfaces, the conductive terminal is accommodated in the terminal slot and partially protrudes from the upper surface, the base is provided with a positioning block for fixing the chip module and a positioning member for fixing the positioning block to the upper surface on the upper surface, the positioning member is sleeved on the positioning block and extends a locking arm, the locking arm is locked against the lower surface through the terminal slot to fix the positioning member, and the positioning member is also provided with a release portion for releasing the locking arm. The chip connector can test chip modules of different geometric sizes. The chip connector stabilizes the chip module through a conventional positioning block.

Therefore, it is necessary to provide an improved chip connector to overcome the above defects.

The technical problem to be solved by the present invention is to provide a chip connector with a locking mechanism.

In order to solve the above technical problems, the present invention adopts the following technical solutions: a chip connector, including a body carrying terminals, a limit seat surrounding the body to form a receiving cavity, and a locking mechanism, the receiving cavity is used to receive the chip, the receiving cavity is upwardly open and has a plurality of inner wall surfaces; the locking mechanism includes an operating part and a fixing part; the operating part drives the fixing part to apply force to the chip to fix the chip in the chip receiving cavity, or releases the fixing part from fixing the chip.

Compared with the previous technology, the present invention has the following beneficial effects: the locking mechanism of the present invention can press against the chip to achieve the fixed position of the chip, and can also be far away from the chip to facilitate the free placement of the chip.

100: Chip connector

10: Body

11: Insulation sub-board

200: Chip

20: Limit seat

201: Receiving chamber

202: Inner wall surface

21: Side wall

22: Bump

221: Inner wall surface

30: Locking mechanism

31: Operation Department

310: Cam part

311: Parallel edges

312: Arc edge

32:Move block

320: Fixed part

321:Connection part

322: Round hole

33: Spring

34: Pivot axis

40: PCB board

50: Heat dissipation back panel

60: Press down assembly

R1, R2: Radius

70: Heat dissipation component

80: Fixed seat

The first figure is a three-dimensional diagram of the chip connector of the present invention in an open state and without a chip installed; the second figure is a three-dimensional diagram of the first figure with a chip installed and locked; the third figure is a three-dimensional diagram of the chip connector of the second figure in a closed state; the fourth figure is a three-dimensional diagram of the second figure without the upper pressing element and the heat dissipation element; the fifth figure is a three-dimensional schematic diagram of the fourth figure with the chip removed; the sixth figure is a three-dimensional exploded diagram of the fifth figure; the seventh figure is a three-dimensional exploded diagram of one side of the locking mechanism of the present invention without a moving block installed ; Figure 8 is a three-dimensional view of Figure 7 from another angle; Figure 9 is a front view of the locking mechanism of the present invention; Figure 10 is a three-dimensional exploded view of the partial structure of the locking mechanism of the present invention; Figure 11 is a schematic diagram of the structure of the locking mechanism and the limit seat of the present invention; Figure 12 is a cross-sectional view of the chip, the limit seat and the locking mechanism at the spring along the vertical direction when the chip is in a free state; and Figure 13 is a cross-sectional view of the chip, the limit seat and the locking mechanism at the spring along the vertical direction when the chip is in a locked state.

Please refer to the first to third figures, a chip connector 100 is used to test a chip 200. The chip connector 100 includes a body 10, a limit seat 20 surrounding the body 10 to form a receiving cavity 201, a fixing seat 80 and a locking mechanism 30 located around the limit seat 20. The fixing seat 80 is a hollow frame structure, and the limit seat 20, the body 10 and the locking mechanism 30 are all located therein. The improvement of the present invention is that the receiving cavity 201 is used to receive the chip 200, and the locking mechanism 30 can extend into the receiving cavity 201 to abut and lock the chip 200 to prevent the chip from shaking when it is working normally; when it is not working, the locking mechanism 30 is operated to keep it away from the chip 200, so that the user can take and put the chip without obstacles.

A pressing component 60 and a heat sink component 70 are provided above the chip connector 100 and are pivotally connected to the top of the fixing seat 80. The heat sink component 70 is fixed to the pressing component 60. One side of the pressing component 60 is pivotally connected to the fixing seat 80 and can be rotated relative to the fixing seat 80 around a pivot axis to press down. When the chip 200 is loaded into the receiving cavity 201, the pressing component 60 is rotated downward, thereby driving the heat sink component 70 to move downward and finally contact the chip 200, thereby exporting the heat generated during the test of the chip 200. The pressing component 60 also provides a downward pressure on the chip 200, so that it can achieve a stable electrical connection with the terminal in the main body 10 below. The main body 10 carries a conductive terminal (not shown), which electrically abuts the chip 200. Referring to the sixth figure, the body 10 is simultaneously mounted on the PCB board 40, the conductive terminals are also electrically connected to the PCB board, and the heat dissipation back plate 50 is attached to the bottom of the PCB board to output the heat generated by the terminals. In this embodiment, the body 10 is mounted on the top of the PCB board 40 and is formed by stacking three insulating sub-plates, wherein the topmost insulating sub-plate 11 is a floating plate, and when the chip 200 is pressed down by force, it moves downward at the same time as the floating plate. The two insulating sub-plates located below the floating plate are fixed sub-plates, which are used to fix the conductive terminals (not shown).

As shown in the fourth to sixth figures, the limit seat 20 is mounted on the main body 10, and has four side walls 21, which surround the above-mentioned receiving cavity 201 that opens upward, and the receiving cavity has a plurality of inner wall surfaces 202. The two ends of one of the side walls are respectively protruded outward to form a convex block 22, and the locking mechanism 30 is mounted on the convex block 22 and further restricted by the fixing seat 80.

Continuing to refer to FIG. 7 to FIG. 11, the locking mechanism 30 is mounted on the limiting seat 20, and the locking mechanism 30 includes an operating portion 31 and a fixing portion 320; the operating portion 31 drives the fixing portion 32 to apply force to the wafer 200 to fix the wafer in the wafer receiving cavity 201, or releases the fixing of the wafer 200 by the fixing portion 32. The wafer 200 is assembled into the receiving cavity 201 from top to bottom, and the fixing portion 32 enters the receiving cavity 201 along a lateral direction perpendicular to the up-down direction, and the fixing portion 320 passes through the inner wall surface 202 and can be tightly pressed against the side surface of the wafer 200. The locking mechanism 30 further includes a spring 33, which elastically presses against the fixing portion 320 to increase the force of the fixing portion on the chip 200, so that when the chip connector is working, the chip 200 can be stably located in the receiving cavity 201. Referring to Figures 7 to 10, specifically, the locking mechanism 30 includes a moving block 32, an operating rod 31, a spring 33 and a pivot 34, and the operating rod is the operating portion 31. The operating part 31 includes a cam part 310. The inner end of the moving block 32 forms the fixing part 320, and the opposite outer end passes through a through hole (not shown) provided in the cam to form a connecting part 321. The connecting part 321 and the cam part are connected to each other through a pivot 34. The cam part 310 presses against the outer wall surface of the side wall 21 and has different radii R. The rotation of the operating part 31 causes the cam part to rotate, thereby driving the moving block 32 to move away from or close to the receiving cavity 201, as shown in Figures 12 to 13.

As shown in FIGS. 12 to 13, when the operating rod 31 rotates upward and is in a vertical state, the cam portion 310 presses against the outer wall surface of the side wall and has a larger radius R1. At this time, the moving block 32 moves outward for a distance, so that the fixing portion 320 is far away from the receiving cavity 201 and does not abut the chip 200. When the operating rod 31 rotates to a horizontal state, the cam portion 310 presses against the outer wall surface of the side wall and has a smaller radius R2 (R1 is larger than R2). At this time, the moving block 32 moves inward for a distance compared to the previous state, so that the fixing portion 320 moves closer to the receiving cavity 201 and finally abuts the chip 200. The above two radii are specifically explained as follows: the cam portion 310 includes two parallel sides 311 and an arc-shaped side 312 connecting the parallel sides, and the radius R2 between the pivot axis 34 and the vertex of the arc-shaped side is smaller than the radius R1 between the pivot axis 34 and the parallel side 311. When the fixing portion 320 abuts against the chip 200, the chip 200 is stably accommodated in the accommodation cavity 201. The above operating portion 31 is rotated so that the fixing portion 320 is away from the chip 200, and the chip 200 can be freely taken in and out.

As shown in Figures 7 to 10, the spring 33 is disposed between the fixing portion 320 and the inner wall surface of the side wall 21, and is pre-set to elastically press against the fixing portion 320. Specifically, each side of the locking mechanism 30 includes two springs 33, the connecting portion 321 of the moving block 32 is narrower than the fixing portion 320, and the fixing portion is provided with two round holes 322, one end of the spring is inserted into the round hole 322, and the other end is exposed from the fixing portion 320 and is located on both sides of the connecting portion 321. In the free state, the other end of the spring is close to the cam portion 310 of the operating portion, and when installed in the limiting seat 20 in a compressed state, the other end of the spring extends outward until it presses against the inner wall surface 221 of the convex block 22, as shown in Figures 11 to 13. After the spring 33 is compressed, it generates an inward pressure on the fixed part 320, which in turn increases the force of the fixed part 320 exerting inward force on the chip 200. The locking mechanism 30 is an axially symmetrical structure, which includes two moving blocks 32 located on both sides thereof and two cam parts 310 cooperating with the moving blocks. An operating part 31 is connected between the two cam parts 310, and the operating part 31 is arranged to be parallel to the above-mentioned parallel edge 311.

It should be pointed out that the above is only the best implementation method of the present invention, not all implementation methods. Any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the specification of the present invention are covered by the scope of the patent application of the present invention.

11: Insulation sub-board

20: Limit seat

22: Bump

30: Locking mechanism

201: Receiving chamber

202: Inner wall surface

21: Side wall

40: PCB board

50: Heat dissipation back panel

80: Fixed seat

Claims (9)

A chip connector comprises: a body, which carries a terminal; a limit seat, which surrounds the body to form a receiving cavity for receiving a chip, the receiving cavity is upwardly open and has a plurality of inner wall surfaces; and a locking mechanism; wherein the locking mechanism comprises an operating part, a moving block and a fixing part; the operating part drives the fixing part to apply force to the chip to fix the chip in the chip receiving cavity, or releases the fixing part from fixing the chip, and the limit seat comprises a plurality of side walls. , one side wall is provided with a through hole, the operating part includes a cam part, the inner end of the moving block forms the fixing part, and the opposite outer end passes through the through hole to form a connecting part, the connecting part and the cam part are connected to each other through a pivot, the cam part presses against the outer wall surface of the side wall and has different radii, the operating part rotates to make the cam part rotate, thereby driving the moving block to move away from or close to the receiving cavity. A chip connector as described in claim 1, wherein the chip is assembled into the receiving cavity from top to bottom, and the fixing portion enters the receiving cavity along a lateral direction perpendicular to the top and bottom. A chip connector as described in claim 1, wherein the fixing portion passes through the inner wall surface and can be tightly pressed against the side surface of the chip. The chip connector as described in claim 3, wherein the locking mechanism further includes a spring, wherein the spring elastically presses against the fixing portion to increase the force applied by the fixing portion to the chip. In the chip connector as described in claim 4, a spring is disposed between the fixing portion and the inner wall surface of the side wall and is pre-set to elastically press against the fixing portion. As described in claim 4, the chip connector, wherein the locking device further includes two springs, the connecting portion of the moving block is narrower than the fixed portion, the fixed portion is provided with two round holes, one end of the spring is inserted into the round hole, and the other end is exposed from the fixed portion and is located on both sides of the connecting portion, and the other end of the spring extends outward until it presses against the inner wall surface of the limit seat. A chip connector as described in claim 6, wherein the chip connector includes two moving blocks and two cam parts cooperating with the moving blocks, and an operating part is connected between the two cam parts. A chip connector as described in claim 4, wherein the cam portion includes two parallel edges and an arc-shaped edge connecting the parallel edges, and the distance between the pivot axis and the vertex of the arc-shaped edge is smaller than the distance between the pivot axis and the parallel edges. A chip connector as described in claim 1, wherein the operating portion is arranged parallel to the parallel edge.

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