CN217007410U - Lever structure for large-size test seat - Google Patents
Lever structure for large-size test seat Download PDFInfo
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- CN217007410U CN217007410U CN202123430134.1U CN202123430134U CN217007410U CN 217007410 U CN217007410 U CN 217007410U CN 202123430134 U CN202123430134 U CN 202123430134U CN 217007410 U CN217007410 U CN 217007410U
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Abstract
The utility model provides a lever structure for a large-size test seat, which comprises a floating seat arranged on a test seat base, a reset spring below the floating seat, a linkage shaft in the floating seat and a pressure rod for rotating the linkage shaft. According to the utility model, the linkage shaft with the milling flat structure is driven by the pressure lever to rotate between the first position and the second position, so that the test seat can be switched between the open state and the test state, and the operation is simple and convenient; in addition, through setting up the connecting rod unit, with the depression bar combined action utilizes lever principle, exerts less effort and can satisfy the demand of test downforce, has made things convenient for tester's operation.
Description
Technical Field
The utility model relates to the field of chip testing, in particular to a lever structure for a large-size test base.
Background
The functional test of chip is essential important step in chip research and development and production, and the chip test seat is the key tool of functional test, and the test seat function is through establishing electronic signal and current transmission between the chip ball on with the chip and the circuit board through the conductor probe after with the chip location to reach the test mesh.
For a large-sized chip, the number of balls of the chip is usually more than 1000 balls, so the size of the corresponding test socket also meets the requirement, and during actual test, the existing large-sized test socket needs larger pressure to complete pressing, and is difficult to press, the structure of the test socket is complex, the requirement on processing precision is high, and the processing cost is higher.
Disclosure of Invention
In order to solve the above problems, the present invention provides a lever structure for a large-sized test socket.
The main content of the utility model comprises:
a lever structure for a large-size test socket comprises two floating supporting pieces which are arranged on two sides of a base of the test socket in a floating manner; the floating support piece comprises a floating seat and a return spring arranged below the floating seat; one of the floating seats is rotatably connected with a test seat cover body; a linkage shaft is arranged in the floating support piece, and the linkage shaft is provided with a milling flat structure; the linkage shaft is connected with a pressure lever, and the pressure lever drives the linkage shaft to rotate so as to enable the linkage shaft to be switched between a first position and a second position; when the linkage shaft is at the first position, the test seat is in an open state; when the linkage shaft is at the second position, the test seat is in a test state.
Preferably, floating groove bodies are formed in two sides of the base of the test seat, and the floating seat is arranged in the floating groove bodies in a floating mode through the reset springs.
Preferably, two opposite side walls of the floating groove body are provided with floating shaft holes; the floating seat is internally provided with a shaft placing groove body, the linkage shaft rotates at a first position and a second position in the placing groove body, and two ends of the linkage shaft penetrate through the floating shaft hole and extend out of the testing seat base.
Preferably, the compression bar comprises a first compression bar body, a second compression bar body and a compression bar handle connected to one end of the first compression bar body and one end of the second compression bar body; the other ends of the first pressing rod body and the second pressing rod body are connected with two ends of one of the linkage shafts.
Preferably, the linkage shaft comprises a shaft body and two shaft connectors arranged at two ends of the shaft body, and the shaft body is cylindrical and is provided with a milling plane; the cross section of the shaft connector is polygonal; the other end of the first pressing rod body and the other end of the second pressing rod body are provided with shaft connecting holes which are quadrilateral, and the shaft connecting heads are arranged in the shaft connecting holes.
Preferably, the device further comprises a connecting rod unit, one end of the connecting rod unit is connected with the pressing rod, the pressing rod is connected with one of the linkage shafts, and the other end of the connecting rod unit is connected with the other linkage shaft.
Preferably, the link unit includes a first link body and a second link body, one end of the first link body is connected to the other link shaft, one end of the second link body is rotatably connected to the other end of the first link body, and the other end of the second link body is rotatably connected to the pressing rod.
Preferably, the pressure lever is provided with a pressure lever bulge, the second connecting rod body is provided with a connecting rod bulge, and when the pressure lever drives the linkage shaft to rotate, the pressure lever bulge pushes the second connecting rod body to horizontally move towards the first connecting rod body through the connecting rod bulge; in a test state, the pressing rod bulge is pressed on the second connecting rod body, and the return spring is in a compression state.
Preferably, block placing grooves are formed in four corners of the base of the test seat, supporting blocks are arranged in the block placing grooves in a floating mode, and one end of the pressing rod is arranged on the supporting blocks.
Preferably, the bottom of the floating groove body is provided with a guide groove, the bottom of the floating seat extends downwards to be provided with a guide post, and the guide post is arranged in the guide groove.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the linkage shaft with the milling flat structure is driven by the pressure lever to rotate between the first position and the second position, so that the test seat can be switched between the open state and the test state, and the operation is simple and convenient;
(2) through setting up the connecting rod unit, with the depression bar combined action utilizes lever principle, exerts less effort and can satisfy the demand of test downforce, has made things convenient for tester's operation.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the present invention in an open state;
FIG. 3 is a schematic structural diagram of the present invention in a test state;
reference numerals:
1-a base; 100-an accommodating space; 110-a floating tank body; 111-a guide slot; 120-a return spring; 2-covering the upper cover; 20-an upper cover frame; 21-a snap-in plate; 22-a heat sink assembly; 23-an axle mount; 31-a pressure bar; 310-a first ram body; 311-a second ram body; 312-a plunger handle; 313-a strut projection; 314-shaft connection hole; 315-connecting the mounting holes; 32-a link unit; 320-connecting rod projection; 321-a first link body; 322-a second link body; 323-connecting rod mounting holes; 4-chip;
5-a probe immobilization component; 50-a probe; 51-a first fixing plate; 52-a second fixing plate; 6-IC placing plate; 60-a guide through hole; 70-a floating seat; 700-shaft placing groove body; 701-a floating shaft hole; 71-linkage axis; 710-an axle body; 711-milling a plane; 712-a shaft connector; 72-a support block; 720-placing grooves; 73-guide post.
Detailed Description
The technical scheme protected by the utility model is specifically explained in the following by combining the attached drawings.
Please refer to fig. 1 to 3. The utility model provides a lever structure for a large-size test socket, which comprises a base 1 and an upper cover 2, wherein the center of the base is provided with an accommodating space 100 for fixedly placing a probe fixing component 5 and an IC placing plate, specifically, the probe fixing component 5 comprises a first fixing plate 51 and a second fixing plate 52 which are arranged up and down, a probe 50 for communicating a chip 4 and a PCB for testing is fixedly placed in the accommodating space, the chip 4 is placed on the IC placing plate 6, a guide through hole 60 for the probe 50 to pass through is formed in the IC placing plate 6, and when the chip 4 is pressed down by the upper cover 2, the IC placing plate 6 drives the chip 4 to move downwards so that the probe 50 is stably contacted with the chip.
The lever structure provided by the utility model can provide pressing pressure for pressing the upper cover 2 downwards.
Example one
In this embodiment, floating groove bodies 110 are disposed on two sides of the base 2, floating support members are disposed in the floating groove bodies 110, each floating support member includes a floating seat 70 and a return spring 120, and the return spring 120 is disposed between the floating seat 70 and the floating groove body 110; further, a shaft placing groove 700 is formed in the floating seat 70, meanwhile, floating shaft holes 701 are formed in two opposite side walls of the floating groove 110, a linkage shaft 71 is placed in the shaft placing groove 700, and two ends of the linkage shaft 71 penetrate through the floating shaft holes 701 and extend to the outer side of the base 2.
The linkage shaft 71 comprises a shaft body 710 and shaft connecting heads 712 arranged at two ends of the shaft body 710, the shaft connecting heads 712 extend out of the outer side of the base 2 and are used for connecting the pressure lever 31, the shaft body 710 is cylindrical and has a milling flat structure, and specifically, a milling plane 711 is milled on the outer peripheral surface of a section of the shaft body 710, which is located in the shaft placing groove 700, so that the linkage shaft 71 forms a cam structure; in the open state of the test socket, the milling plane 711 of the linkage shaft 71 faces the shaft placement groove 700, and the linkage shaft 71 is at the first position; at this time, the return spring 120 is in an initial state, and in a test state, the linkage shaft 71 is driven by the pressing rod 31 to rotate and is in a second position, that is, the milling plane 711 of the linkage shaft 71 no longer faces the shaft placing groove 700, but the cylindrical surface of the linkage shaft abuts against the floating seat 70, and at this time, the return spring 120 is in a compressed state.
The linkage shaft 71 is changed from the first position to the second position, namely, the test seat is changed from the open state to the test state, and the transition between the first position and the second position of the linkage shaft 71 is realized under the operation of the pressure lever 31.
Specifically, a shaft mounting seat 23 is further disposed above one of the floating seats 70, one side of the upper cover 2 is rotatably connected to the shaft mounting seat 23, and meanwhile, the other side of the upper cover 2 is fastened to the other floating seat 70 through a fastening plate 21, so that the upper cover 2 can synchronously move along with the up-and-down floating of the floating seat 70, that is, when the floating seat 70 moves downward under the downward pressure of the linkage shaft 71, the upper cover 2 also presses downward pressure on the chip 4 along with the downward pressure, and the chip 4 is stably contacted with the probe 50.
The pressing rod 31 includes a first pressing rod body 310, a second pressing rod body 311 and a pressing rod handle 312 connecting the first pressing rod body 310 and the second pressing rod body 311, wherein one end of the first pressing rod body 310 and one end of the second pressing rod body 311 are provided with a shaft connecting hole 314, a shaft connecting head 712 of a corresponding coupling shaft 701 is configured in the shaft connecting hole 314, in this embodiment, the shaft connecting hole 314 is a quadrilateral structure, and a cross section of the shaft connecting head 712 is a polygonal structure 712; furthermore, the first pressing rod 310 and the second pressing rod 311 are integrally formed by two rods with an obtuse angle, and when operating, a person grasps the pressing rod handle 312 to make the first pressing rod 310 and the second pressing rod 311 simultaneously drive the linkage shaft 71 to rotate, so that the linkage shaft 71 is switched between the first position and the second position.
In addition, a guide groove 111 is formed at the bottom of the floating groove body 110, a guide post 73 is arranged at the bottom of the floating seat 70 in a downward extending manner, and the guide post 73 is arranged in the guide groove 111.
Example two
The difference between this embodiment and the first embodiment is that the lever structure further includes a link unit 32.
One end of the connecting rod unit 32 is connected with the pressing rod 31, the pressing rod 31 is connected with one of the linkage shafts 71, and the other end of the connecting rod unit 32 is connected with the other linkage shaft 71.
Specifically, the link unit 32 includes a first link 321 and a second link 322, one end of the first link 321 is connected to the other link shaft 71, one end of the second link 322 is rotatably connected to the other end of the first link 321, and the other end of the second link is rotatably connected to the pressure lever 31.
In this embodiment, the connection manner between the first link 321 and the corresponding coupling shaft 71 is the same as the connection manner between the first pressing link 310 and the second pressing link 311 and the corresponding coupling shaft 71, and is not repeated herein; the first connecting rod body 321 and the second connecting rod body 322 are connected through a shaft, and the second connecting rod body 322 is connected with the first pressing rod body 310 and the second pressing rod body 311 through a shaft; furthermore, the first pressing rod 310 and the second pressing rod 311 are provided with a pressing rod protrusion 312, and the second connecting rod 322 is provided with a connecting rod protrusion 320, so that when the opening state is changed into the testing state, and the pressing rod 31 drives the linkage shaft 71 to rotate, the second connecting rod 322 is pushed by the pressing rod 31 to horizontally move towards the first connecting rod 321, and meanwhile, the pressing rod protrusion 312 can also push the second connecting rod 322 to horizontally move towards the first connecting rod 321 to a certain extent through the connecting rod protrusion 320, and the first connecting rod 321 drives the corresponding linkage shaft 71 to rotate to the second position; in the testing state, the pressing rod protrusion 312 presses against the second connecting rod 322, and the return spring 120 is in a compressed state. When the test state is changed to the open state, the pressing rod 31 drives the corresponding linkage shaft 71 to rotate, and the second connecting rod 322 is linked to move horizontally away from the first connecting rod 321, so that the first connecting rod 321 drives the corresponding linkage shaft 71 to rotate at the same time, that is, the second position is changed to the first position, and the return spring 120 is returned to the initial state.
In this embodiment, block placing grooves 720 are formed at four corners of the base 2, a supporting block 72 is arranged in the block placing grooves 720 in a floating manner, and the pressing rod 31 and one end of the first link body 321 are disposed on the supporting block 72.
In addition, in order to solve the heat dissipation problem in the test process, a heat dissipation assembly 22 is arranged on the upper cover 2, specifically, the upper cover 2 includes an upper cover frame 20 and the heat dissipation assembly 22 arranged in the upper cover frame 20, under the test state, the lower surface of the heat dissipation assembly 22 contacts with the chip 4 to be tested, and when the upper cover 2 is closed, the lower surface of the heat dissipation assembly 22 on the upper cover 2 contacts with the chip 4 to be tested, and applies a certain force to the chip 4 to be tested. Preferably, the heat dissipation assembly 22 includes a plurality of heat dissipation fins.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A lever structure for a large-size test socket is characterized by comprising two floating supporting pieces which are arranged on two sides of a base of the test socket in a floating manner; the floating support piece comprises a floating seat and a return spring arranged below the floating seat; one of the floating seats is rotatably connected with a test seat cover body, and one side of the test seat cover body is connected with the other test seat; a linkage shaft is arranged in the floating support piece, and the linkage shaft is provided with a milling flat structure; the linkage shaft is connected with a pressure lever, and the pressure lever drives the linkage shaft to rotate so as to enable the linkage shaft to be switched between a first position and a second position; when the linkage shaft is at the first position, the test seat is in an open state; when the linkage shaft is at the second position, the test seat is in a test state.
2. The lever structure for a large-sized test socket as claimed in claim 1, wherein floating slots are opened at both sides of the base of the test socket, and the floating socket is floatingly disposed in the floating slots through the return spring.
3. The lever structure for the large-size test socket as claimed in claim 2, wherein two opposite side walls of the floating slot body are provided with floating shaft holes; the floating seat is internally provided with a shaft placing groove body, the linkage shaft rotates at a first position and a second position in the placing groove body, and two ends of the linkage shaft penetrate through the floating shaft hole and extend out of the testing seat base.
4. The lever structure for the large-sized test socket as recited in claim 3, wherein the pressing rod comprises a first pressing rod body, a second pressing rod body and a pressing rod handle connected to one end of the first pressing rod body and one end of the second pressing rod body; the other ends of the first pressing rod body and the second pressing rod body are connected with two ends of one of the linkage shafts.
5. The lever structure for the large-size test socket as claimed in claim 4, wherein the linkage shaft comprises a shaft body and two shaft connectors disposed at two ends of the shaft body, the shaft body is cylindrical and has a milling plane; the cross section of the shaft connector is polygonal; the other end of the first pressing rod body and the other end of the second pressing rod body are provided with quadrilateral shaft connecting holes, and shaft connectors are arranged in the shaft connecting holes.
6. The lever structure for a large-sized test socket according to any one of claims 1 to 5, further comprising a link unit, wherein one end of the link unit is connected to the pressing rod, the pressing rod is connected to one of the linkage shafts, and the other end of the link unit is connected to the other linkage shaft.
7. A lever structure for a large-scale test socket as set forth in claim 6, wherein the link unit comprises a first link body and a second link body, one end of the first link body is connected to the other end of the link shaft, one end of the second link body is rotatably connected to the other end of the first link body, and the other end of the second link body is rotatably connected to the press rod.
8. The lever structure for a large-sized test socket as claimed in claim 7, wherein the pressing rod has a pressing rod protrusion, the second connecting rod has a connecting rod protrusion, and when the pressing rod drives the linking shaft to rotate, the pressing rod protrusion pushes the second connecting rod to move horizontally towards the first connecting rod through the connecting rod protrusion; in a test state, the pressing rod bulge is pressed on the second connecting rod body, and the return spring is in a compression state.
9. The lever structure of claim 1, wherein the test socket base has block slots at four corners, the block slots are provided with support blocks in a floating manner, and one end of the pressing rod is disposed on the support blocks.
10. The lever structure for the large-size test socket as claimed in claim 2, wherein a guide groove is formed at the bottom of the floating socket body, a guide post is arranged at the bottom of the floating socket body in a downward extending manner, and the guide post is arranged in the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123430134.1U CN217007410U (en) | 2021-12-31 | 2021-12-31 | Lever structure for large-size test seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123430134.1U CN217007410U (en) | 2021-12-31 | 2021-12-31 | Lever structure for large-size test seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217007410U true CN217007410U (en) | 2022-07-19 |
Family
ID=82389507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123430134.1U Active CN217007410U (en) | 2021-12-31 | 2021-12-31 | Lever structure for large-size test seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217007410U (en) |
-
2021
- 2021-12-31 CN CN202123430134.1U patent/CN217007410U/en active Active
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