CN110927578B - Microneedle test module - Google Patents
Microneedle test module Download PDFInfo
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- CN110927578B CN110927578B CN201911294110.2A CN201911294110A CN110927578B CN 110927578 B CN110927578 B CN 110927578B CN 201911294110 A CN201911294110 A CN 201911294110A CN 110927578 B CN110927578 B CN 110927578B
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- microneedle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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Abstract
The invention provides a microneedle testing module which is used for testing a battery module and comprises a testing base, a microneedle containing block, a testing cover body, a microneedle assembly, a first end cover, a second end cover, two crimping bodies and four connecting pins, wherein the microneedle assembly comprises a microneedle fixing body and microneedles; the micro-needle comprises a micro-needle main body, two positioning points arranged at one end of the micro-needle main body and positioned in the testing base, a micro-needle body connected with the other end of the micro-needle main body, and at least one contact point arranged at the end part of the micro-needle body and contacted with the battery module. The microneedle test module disclosed by the invention is suitable for pins of the battery module, so that the test capacity is improved, and the yield is high; the micro-needle scheme has a contact test, so that the pins of the battery module cannot be damaged; the microneedle testing module is low in cost, and only the microneedles need to be replaced for subsequent maintenance; high compatibility and wide application range of the high-current micro-needle.
Description
Technical Field
The invention relates to the technical field of testing, in particular to a microneedle testing module.
Background
At present, the batteries/power supplies of the 3C PACK lithium battery production line are connected by adopting probes or connectors, and the modes of buckling of male and female heads after CCD photographing and positioning, downward pressing test of the probes or manual buckling can only be adopted, so that the two modes have the following defects: 1. the speed is low, and the productivity is low; 2. the yield is low; 3. the cost is high.
Therefore, it is necessary to provide a testing apparatus.
Disclosure of Invention
The invention aims to provide a low-cost microneedle testing module adopting contact testing.
The invention provides a microneedle test module which is used for testing a battery module and comprises a test base, a microneedle containing block fixedly connected with the test base, a test cover fixedly connected with the microneedle containing block, a microneedle assembly fixed between the microneedle containing block and the test cover and supported by a microneedle fixing seat, a first end cover fixed at one end of the microneedle assembly and positioned in the microneedle containing block, a second end cover fixed at the other end of the microneedle assembly and positioned in the microneedle containing block, two compression joint bodies fixed between the first end cover and the microneedle assembly and arranged side by side and four connecting pins, wherein the microneedle assembly comprises a plurality of microneedle fixing bodies which are sequentially arranged and a plurality of microneedles which are fixed in each microneedle fixing body and extend out of two ends of each microneedle fixing body; the micro-needle comprises a micro-needle main body, two positioning points arranged at one end of the micro-needle main body and positioned in the testing base, a micro-needle body connected with the other end of the micro-needle main body, and at least one contact point arranged at the end part of the micro-needle body and contacted with the battery module; every two connecting pins are arranged up and down, wherein the two connecting pins arranged up and down sequentially penetrate through the two ends of one side of the first end cover, the two ends of one side of the crimping body, the two ends of one side of the microneedle component and the two ends of one side of the second end cover, and the other two connecting pins arranged up and down sequentially penetrate through the two ends of the other side of the first end cover, the two ends of the other side of the crimping body, the two ends of the other side of the microneedle component and the two ends of the other side of the second end cover.
Preferably, the microneedle comprises two contact points, the two contact points being Y-shaped.
Preferably, the contact points are pointed or saw-toothed.
Preferably, the microneedle fixing body is provided with a first surface, a second surface opposite to the first surface, and a microneedle fixing groove arranged in the first surface and used for positioning the microneedle main body.
Preferably, two adjacent microneedle fixing bodies fix a microneedle, and two positioning points and contact points of each microneedle respectively extend out of two ends of the microneedle fixing groove.
Preferably, the two crimping bodies are fixed at one end of the microneedle assembly and used for sealing a first surface of the microneedle fixing body, the first end cap is fixed on the two crimping bodies, and the second end cap is fixed at the other end of the microneedle assembly and used for sealing a second surface of the microneedle fixing body.
Preferably, the inner side surface of the test base is provided with a plurality of protrusions, and two positioning points of the microneedle are positioned on each protrusion.
Preferably, the first end cap is provided with four first positioning posts fixed in the microneedle receiving block; the second end cover is provided with two second positioning columns fixed in the microneedle containing block.
Preferably, the microneedle holding block is provided with a holding block main body, a step extending downwards from the holding block main body, a step groove penetrating through the holding block main body and the step and used for holding the microneedle assembly, four first positioning holes arranged on one side of the step and two second positioning holes arranged on the other side of the step, four first positioning posts of the first end cover are respectively fixed in the first positioning holes, and two second positioning posts of the second end cover are respectively bulged in the second positioning holes.
Preferably, the test cover body is provided with a cover body groove for accommodating the steps of the microneedle accommodating block, a plurality of positioning holes arranged in the cover body groove, and a supporting block arranged on the bottom surface of the cover body groove and located opposite to the plurality of positioning holes, the contact points of the microneedles penetrate through the corresponding positioning holes, and the plane where the end parts of the contact points are located and the bottom surface of the supporting block are located in the same plane.
The microneedle test module disclosed by the invention is suitable for pins of the battery module, so that the test capacity is improved, and the yield is high; the micro-needle scheme has a contact test, so that the pins of the battery module cannot be damaged; the microneedle testing module is low in cost, and only the microneedles need to be replaced for subsequent maintenance; high compatibility and wide application range of the high-current micro-needle.
Drawings
Fig. 1 is a perspective view of a microneedle test adaptation apparatus according to the present invention;
fig. 2 is a front view of the microneedle test adaptation device shown in fig. 1;
fig. 3 is a partial schematic view of the microneedle test adaptation apparatus shown in fig. 1;
fig. 4 is an isolated schematic view of a mounting plate of the microneedle test adaptation device of fig. 1;
fig. 5 is an isolated schematic view of a positioning plate of the microneedle test adaptation apparatus shown in fig. 1;
fig. 6 is an isolated schematic view of a rotation axis of the microneedle test adaptation apparatus shown in fig. 1;
fig. 7 is an isolated schematic view of a supporting slide mount of the microneedle test adaptation device of fig. 1;
fig. 8 is an isolated schematic view of a positioning socket of the microneedle test adaptation device of fig. 1;
fig. 9 is an isolated schematic view of a microneedle holder of the microneedle test adaptation apparatus shown in fig. 1;
fig. 10 is an isolated schematic view of a microneedle test module of the microneedle test adaptation device shown in fig. 1;
fig. 11 is a schematic view of an isolated structure of a test base of the microneedle test module shown in fig. 10;
fig. 12 and 13 are schematic views of the individual structures of the microneedle receiving block of the microneedle test module shown in fig. 10;
fig. 14 and 15 are schematic views of the individual structures of the test covers of the microneedle test module shown in fig. 10;
fig. 16 is a schematic view of a first endcap of the microneedle test module of fig. 10 in isolation;
fig. 17 is a schematic view of an isolated configuration of a second endcap of the microneedle test module shown in fig. 10;
fig. 18 is a schematic view of the separate structures of two crimp bodies of the microneedle test module shown in fig. 10;
fig. 19 is a schematic view of an isolated structure of a microneedle fixture of the microneedle test module shown in fig. 10;
fig. 20 is a schematic view of an isolated structure of the microneedles of the microneedle test module shown in fig. 10;
fig. 21 is a schematic structural view of the microneedle test module shown in fig. 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention discloses a microneedle test self-adaptive device which is used for an automatic production line test station of a digital lithium battery module 100.
As shown in fig. 1 to 3, the adaptive microneedle test device includes a mounting plate 10, two first linear rails 11 fixed on the mounting plate 10 and disposed opposite to each other, a fixing plate 12 (shown in fig. 4) fixed on the two first linear rails 11, a floating joint 21 fixed on the fixing plate 12 and disposed between the two first linear rails 11, an air cylinder 20 connected to the floating joint 21, a sensor 30 fixed on the fixing plate 12 and disposed close to one of the first linear rails 11, a positioning plate 41 (shown in fig. 5) fixed on the fixing plate 12, a sensing plate 40 disposed on the positioning plate 41 and capable of contacting with the sensor 30, a supporting plate 42 disposed below the positioning plate 41, a rotating shaft 44 (shown in fig. 6) inserted between the positioning plate 41 and the supporting plate 42 and sleeved on the rotating shaft 44, and two first microdiversions 50 respectively inserted into opposite 2 sides of the positioning plate 42 and supported on two sides of the supporting plate 42, A supporting sliding seat 45 (shown in fig. 7) located below the two first differential heads 45 and supporting the positioning plate 42, a positioning seat 46 (shown in fig. 8) located below the supporting sliding seat 45, two first springs 47 located between the supporting sliding seat 45 and the positioning seat 46, two blocking plates 48 respectively fixed to the two side ends of the positioning seat 46, two second linear slide rails 60 respectively fixed to the two opposite sides of the positioning seat 46, a connecting seat 47 fixed to the two opposite sides of the positioning seat 46 and located below the second linear slide rails 60, two second differential heads 70 respectively inserted into the two opposite sides of the connecting seat 47 and the positioning seat 46 in sequence, a third linear slide rail 80 fixed to the bottom of the positioning seat 46, a microneedle fixing seat 49 (shown in fig. 9) fixed to the third linear slide rail 80 and located inside the positioning seat 46, 2 second springs 491 located between the two opposite inside of the positioning seat 46 and the microneedle fixing seat 49, and a microneedle testing module 90 (shown in fig. 10) fixed below the microneedle fixing seat 49 .
Wherein, the lower end of the induction sheet 40 is fixed on the positioning seat 46; each baffle 48 is fixed at the end of the corresponding second linear slide rail 60 respectively to prevent the sliding block of the second linear slide rail 60 from separating from the second linear slide rail 60; the two ends of the supporting sliding seat 45 slide on the second linear sliding rail 60, and compress the two first springs 47 during sliding.
As shown in fig. 5, the positioning plate 41 includes two positioning fixing bodies 411 disposed on the fixing plate 12 and opposite to each other, positioning columns 4111 disposed on each positioning fixing body 411 and fixed on the fixing plate 12, positioning differential bodies 4112 extending from two side ends of the positioning fixing bodies 411 and allowing the two first differential heads 45 to pass through, and a positioning support 412 disposed between the two positioning fixing bodies 411, wherein the positioning support 412 is provided with a through hole 4121 for the rotation shaft 30 to pass through.
As shown in fig. 7, the supporting slide seat 45 includes two opposite slide bodies 451 and a supporting body 452 connected between the two slide bodies 451, the two slide bodies 451 respectively slide on the two second linear slide rails 60, and the supporting body 452 is located below the supporting positioning plate 42.
As shown in fig. 8, the positioning seat 46 includes two positioning seat supports 461 disposed opposite to each other, and a first positioning body 462 and a second positioning body 463 connected between the two positioning seat supports 461 and disposed at an interval, wherein the surface of the first positioning body 462 is provided with a first positioning groove 4621 for respectively positioning the two first springs 47, the first positioning body 462 is disposed close to the two positioning seat supports 461, and the second positioning body 463 is disposed between the two positioning seat supports 461. The inner side of each positioning seat support 461 is provided with two positioning support grooves 4611 for positioning the two second springs 491 respectively. The two second linear sliding rails 60 are respectively fixed at the outer sides of the two positioning seat supporting bodies 461. The lower end of the sensing piece 40 is fixed to the side of the first positioning body 462 of the positioning seat 46. The blocking piece 48 is located at the end of the corresponding positioning seat support 461 and is fastened to the first positioning seat 462. The third linear sliding rail 80 is fixed on the lower surface of the second positioning body 463 and located between the two positioning seat supports 461.
As shown in fig. 10 to 16, the microneedle test module 90 includes a test base 91 fixed on the microneedle fixing base 49, a microneedle accommodating block 92 fixedly connected with the test base 91, a test cover 93 fixedly connected with the microneedle accommodating block 92, a microneedle assembly 94 fixed between the microneedle accommodating block 92 and the test cover 93 and supported by the microneedle fixing base 49, a first end cap 95 fixed at one end of the microneedle assembly 94 and positioned in the microneedle accommodating block 92, a second end cap 96 fixed at the other end of the microneedle assembly 94 and positioned in the microneedle accommodating block 92, two pressure-connecting bodies 96 fixed between the first end cap 95 and the microneedle assembly 94 and arranged side by side, and four connecting pins 97, wherein each two connecting pins 97 are arranged up and down, wherein two connecting pins 97 arranged up and down sequentially pass through two ends of one side of the first end cap 95, two ends of a side edge of one pressure-connecting body 96, two ends of one side of the microneedle assembly 94, and two ends of one side of the second end cap 96, two other connecting pins 97 disposed up and down pass through two ends of the other side of the first end cap 95, two ends of the side of the other crimp body 96, two ends of the other side of the microneedle assembly 94, and two ends of the other side of the second end cap 96 in sequence.
The microneedle assembly 94 includes a plurality of microneedle holders 941 arranged in sequence and a plurality of microneedles 942 welded and fixed to each microneedle holder 941 and extending from both ends thereof. The microneedle 942 includes a microneedle body 9421, two positioning points 9422 disposed at one end of the microneedle body 9421 and positioned in the test base 91, a microneedle body 9423 connected to the other end of the microneedle body 9422, and two contact points 9424 disposed at the end of the microneedle body 9423, wherein the two contact points 9424 are Y-shaped.
In other embodiments, the ends of the micro needles 9423 are provided with only contact points in a pointed or saw-tooth shape, the shape of which corresponds to the shape of the pins 101 of the battery module 100, so that the pins 101 of the battery module 100 are tested through the contact points.
When the microneedle is damaged, the microneedle is replaced by a new microneedle.
As shown in fig. 19 to 21, the microneedle fixture 941 has a first surface 9411, a second surface 9412 opposite to the first surface 9411, two through holes 9412 respectively disposed at each side of the microneedle fixture 941, and microneedle fixing grooves 9414 disposed in the first surface 9411 and used for positioning the microneedle bodies 9421, and the microneedle bodies 9421 of the microneedles 942 are fixed in the microneedle fixing grooves 9414 of the microneedle fixture 941. When assembling, two neighboring microneedle holders 941 hold one microneedle 942, two positioning points 9422 and two contact points 9424 of each microneedle 942 extend out of two ends of the microneedle fixing groove 9411,
as shown in fig. 18, two crimp bodies 96 are fixed to one end of the microneedle assembly 94 and used for sealing a first surface 9411 of the microneedle fixture 941, a first end cap 95 is fixed to the two crimp bodies 96, and a second end cap 96 is fixed to the other end of the microneedle assembly 94 and used for sealing a second surface 9412 of the microneedle fixture 941.
As shown in fig. 11, the inner side surface of the test base 91 is provided with a plurality of protrusions 911, and two positioning points 9422 of the microneedles 942 are positioned on each protrusion 911, and the number of the protrusions 911 is the same as that of the microneedles 942.
As shown in fig. 16, first end cap 95 is provided with four first positioning posts 951 that are secured within microneedle housing block 92. As shown in fig. 17, second end cap 96 is provided with two second positioning posts 961 secured within microneedle housing block 92.
As shown in fig. 12 and 13, the microneedle containing block 92 is provided with a containing block main body 924, a step 925 extending downward from the containing block main body 924, a step groove 921 penetrating through the containing block main body 924 and the step 925 and used for containing a microneedle assembly 94, four first positioning holes 922 arranged on one side of the step 925, and two second positioning holes 923 arranged on the other side of the step 925, wherein four first positioning posts 951 of the first end cap 95 are respectively fixed in the first positioning holes 922, and two second positioning posts 961 of the second end cap 96 are respectively bulged in the second positioning holes 923.
As shown in fig. 14 and 15, the test cover 93 has a cover recess 931 for receiving the step 925 of the microneedle housing block 92, a plurality of positioning holes 932 provided in the cover recess 931, and a support block 933 provided on the bottom surface of the cover recess 931 and opposing the plurality of positioning holes 932, the contact points 9424 of the microneedles 942 pass through the corresponding positioning holes 932, the end portions of the contact points 9424 are located on the same plane as the bottom surface of the support block 933, and the contact points 9424 are included in the support block 933.
The microneedles 942 of the microneedle test module 90 can conduct a large current, and the current of each microneedle 942 is large and not less than 8A; the micro-needles 942 have good wear resistance and long service life, which can reach more than 5 ten thousand times, and can reach more than 30 ten thousand times at most; the micro-needle has a certain elastic deformation amount and good test stability.
When the micro needle testing module 90 works, after the battery module 100 is in place, the micro needle testing module is driven by the air cylinder 20, the air cylinder 20 moves downwards on the first linear slide rail 11 along with the floating connector 21 and the fixed plate 12, the sensor 30 also moves downwards on the first linear slide rail 11 along with the fixed plate 12, the positioning plate 41 also moves downwards along with the fixed plate 12, the rotating shaft 44 rotates and drives the supporting plate 42 to move downwards, the supporting plate 42 presses the supporting sliding seat 45 downwards, the supporting sliding seat 45 compresses the first spring 47, two sides of the supporting sliding seat 45 respectively move downwards on the second linear slide rail 60, and simultaneously drives the positioning seat 46 to move downwards, so that the positioning seat 46 moves downwards to drive the micro needle testing module 90 to integrally descend, and therefore the connection with the pins 101 of the battery module 100 is realized, and when the sensor 30 contacts with the upper end of the sensing sheet 40, the air cylinder 20 stops moving.
In the installation and debugging process, the angle relative position between the microneedle test module 90 and the battery module 100 can be adjusted by adjusting the first differential head 50, so that the microneedle 91 of the microneedle test module 90 can be well contacted with the pin 101 of the battery module 100, namely when adjusting the two first differential heads 50, the two first differential heads 50 are propped against the two sides of the supporting plate 42, so that the two first springs 47 are compressed after the two sides of the supporting plate 42 are stressed and then support the sliding seat 45, and the positioning seat 46 moves downwards.
The microneedle test module 90 is mounted below the third linear slide rail 80 through the microneedle fixing seat 49, and can float left and right (the floating amount of the microneedles can be adjusted through the second differential head 70) in the process that the microneedle test module 90 descends to contact with the battery module 100, so as to adapt to the small size difference between different battery modules 100.
When the battery module 100 is not placed in place, the microneedle test module 90 pushes down the process and has resistance increasing, the compression amount of the first spring 47 increases, the sensor 30 senses the resistance increasing, and the program control cylinder 20 can be controlled to ascend, so that the battery module 100 is guaranteed not to be crushed.
When the service life of the micro-needle 91 of the battery module 100 or the micro-needle testing module 90 is limited, the micro-needle testing module can be replaced integrally, so that the rapid replacement is realized.
The microneedle test self-adaptive device adopts high-precision linear slide rail guide to ensure the precision of a microneedle test module in the downward movement process; the left-right floating amount and the rotation angle of the microneedle testing module are adjusted through the first differential head and the second differential head, so that the microneedle testing module is well butted with the battery module; the first spring and the sensor realize up-and-down floating, so that a product is protected; the microneedle test module is fixed by adopting an independent module, and the microneedle test module is integrally replaced during model changing.
The microneedle test adaptive device has high productivity, can save CCD positioning time and improve test performance, and has low price.
The microneedle test module disclosed by the invention is suitable for pins of the battery module, so that the test capacity is improved, and the yield is high; the micro-needle scheme has a contact test, so that the pins of the battery module cannot be damaged; the microneedle test module is low in cost, the service life of the microneedle is 3 times that of a common probe and 160 times that of the conventional test board, and only the microneedle needs to be replaced for subsequent maintenance; high compatibility and wide application range of the high-current micro-needle.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A microneedle test module is used for testing a battery module and is characterized by comprising a test base, a microneedle containing block fixedly connected with the test base, a test cover fixedly connected with the microneedle containing block, a microneedle assembly fixed between the microneedle containing block and the test cover and supported by a microneedle fixing seat, a first end cover fixed at one end of the microneedle assembly and positioned in the microneedle containing block, a second end cover fixed at the other end of the microneedle assembly and positioned in the microneedle containing block, two compression joint bodies fixed between the first end cover and the microneedle assembly and arranged side by side and four connecting pins, wherein the microneedle assembly comprises a plurality of microneedle fixing bodies arranged in sequence and a plurality of microneedles fixed in each microneedle fixing body and extending out of two ends of the microneedle fixing body; the micro-needle comprises a micro-needle main body, two positioning points arranged at one end of the micro-needle main body and positioned in the testing base, a micro-needle body connected with the other end of the micro-needle main body, and at least one contact point arranged at the end part of the micro-needle body and contacted with the battery module; every two connecting pins are arranged up and down, wherein the two connecting pins arranged up and down sequentially penetrate through the two ends of one side of the first end cover, the two ends of one side of the crimping body, the two ends of one side of the microneedle component and the two ends of one side of the second end cover, and the other two connecting pins arranged up and down sequentially penetrate through the two ends of the other side of the first end cover, the two ends of the other side of the crimping body, the two ends of the other side of the microneedle component and the two ends of the other side of the second end cover.
2. The microneedle testing module of claim 1, wherein: the microneedle comprises two contact points, which are Y-shaped.
3. Microneedle testing module according to claim 1 or 2, characterized in that: the contact point is pointed or sawtooth-shaped.
4. The microneedle testing module of claim 1, wherein: the microneedle fixing body is provided with a first surface, a second surface opposite to the first surface and a microneedle fixing groove arranged in the first surface and used for positioning the microneedle main body.
5. The microneedle testing module of claim 4, wherein: two adjacent microneedle fixing bodies fix a microneedle, and two positioning points and contact points of each microneedle respectively extend out of two ends of the microneedle fixing groove.
6. The microneedle testing module of claim 4, wherein: the two crimping bodies are fixed at one end of the microneedle component and used for sealing the first surface of the microneedle fixing body, the first end covers are fixed on the two crimping bodies, and the second end covers are fixed at the other end of the microneedle component and used for sealing the second surface of the microneedle fixing body.
7. The microneedle testing module of claim 1, wherein: the inner side surface of the test base is provided with a plurality of bulges, and two positioning points of the micro-needle are positioned on each bulge.
8. The microneedle testing module of claim 1, wherein: the first end cover is provided with four first positioning columns fixed in the microneedle containing block; the second end cover is provided with two second positioning columns fixed in the microneedle containing block.
9. The microneedle testing module of claim 8, wherein: the microneedle holds the piece and is equipped with and holds a main part, by holding a step of main part downwardly extending, run through and hold a step groove that a main part and step just are used for acceping the microneedle subassembly, set up four first locating holes on one side of the step and set up two second locating holes on the step opposite side, and four first locating posts of first end cover are fixed respectively in first locating hole, and two second locating posts of second end cover are fixed respectively in the second locating hole.
10. A microneedle testing module according to claim 9, characterized in that: the testing cover body is provided with a cover body groove for accommodating the steps of the microneedle accommodating block, a plurality of positioning holes arranged in the cover body groove and a supporting block arranged on the bottom surface of the cover body groove and opposite to the positioning holes, the contact points of the microneedles penetrate through the corresponding positioning holes, and the plane where the end parts of the contact points are located and the bottom surfaces of the supporting blocks are in the same plane.
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| CN201911294110.2A CN110927578B (en) | 2019-12-16 | 2019-12-16 | Microneedle test module |
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| JPH09204939A (en) * | 1996-01-26 | 1997-08-05 | Asuka Denshi Kk | Conductive contact pin |
| CN204088271U (en) * | 2014-07-08 | 2015-01-07 | 浙江格普新能源科技有限公司 | A kind of photovoltaic one-sheet test device |
| KR101951311B1 (en) * | 2017-03-15 | 2019-02-22 | 퀄맥스시험기술 주식회사 | Test probe of battery with multi-contact point |
| CN207366665U (en) * | 2017-11-01 | 2018-05-15 | 温州微特电子有限公司 | A kind of adjustable test probe base of miniature transformer |
| CN207866868U (en) * | 2018-01-17 | 2018-09-14 | 珠海博杰电子股份有限公司 | Cell phone mainboard precision micropin tests module |
| CN207782755U (en) * | 2018-02-10 | 2018-08-28 | 泰州隆基乐叶光伏科技有限公司 | A kind of MBB solar cell tests platform |
| CN208656721U (en) * | 2018-09-04 | 2019-03-26 | 国家电投集团西安太阳能电力有限公司 | Solar cell testing device |
| CN109444754A (en) * | 2018-11-06 | 2019-03-08 | 东莞市恒翼能自动化有限公司 | A kind of soft package lithium battery automatic test machine structure and equipment |
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| CN110927578A (en) | 2020-03-27 |
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