CN106918518A - A kind of counter-bending durable test device of photovoltaic cell - Google Patents
A kind of counter-bending durable test device of photovoltaic cell Download PDFInfo
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- CN106918518A CN106918518A CN201710306978.4A CN201710306978A CN106918518A CN 106918518 A CN106918518 A CN 106918518A CN 201710306978 A CN201710306978 A CN 201710306978A CN 106918518 A CN106918518 A CN 106918518A
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 238000005452 bending Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 230000000712 assembly Effects 0.000 claims description 23
- 238000000429 assembly Methods 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000007689 inspection Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 9
- 230000006378 damage Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010835 comparative analysis Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electromagnetism (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of counter-bending durable test device of photovoltaic cell, photovoltaic cell centre position is fixed by holding part, rolling wheel is arranged on photovoltaic cell edge, photovoltaic cell is bent, with rolling wheel move, photovoltaic cell by reversed bending, so as to detect the endurance quality of monoblock photovoltaic cell, detection efficiency is improve, for the implementation result of related process or Improving Measurements provides strong data foundation.
Description
Technical field
The present invention relates to a kind of test device, particularly a kind of counter-bending durable test device of photovoltaic cell.
Background technology
The general cell piece thickness of photovoltaic industry be 180-200 μm, as silicon wafer thickness is thinning, when thickness 200 μm with
When lower, silicon chip percentage of damage is dramatically increased, yield rate reduction.
In order to improve productivity effect, the improvement activity for silicon chip percentage of damage is being carried out always, the frock improvement of production line,
Package improvement, the improvement for also being carried out from product itself, such as production technology, material composition improve, and improvement is general
The mechanical strength such as destructive power, sag that is crushed by cell piece is embodied, but cell piece percentage of damage not fully with it is above-mentioned
Mechanical strength is proportional, the broken generation of cell piece sometimes transport and it is actually used after, so the percentage of damage of cell piece with
The durability of its mechanical strength has bigger association.
The existing resistant to bending durable test device of cell piece, mainly the local location to cell piece bend repeatedly, at one survey
Adjustment position test again after the completion of examination, testing efficiency is slow, it is impossible to reflect the bending resistance of monoblock cell piece.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, it is anti-it is an object of the invention to provide a kind of circulating photovoltaic cell
Bending durable test device.
To reach above-mentioned purpose, the technical solution adopted for the present invention to solve the technical problems is：A kind of photovoltaic cell
Counter-bending durable test device, including：
Dynamic bracket, top is provided with rolling wheel, and the rolling wheel is contradicted in photovoltaic cell edge；
Quiet bracket, top is provided with holding part, and the holding part fixes the center of photovoltaic cell；
Mobile strut assemblies, top is connected with the dynamic bracket, and bottom is provided with sliding block；
Fixed support, top is connected with the quiet bracket；
Dragging track, the sliding block is slided in its sliding groove；
Drive device, drives the mobile strut assemblies to be slided along the dragging track.
The present invention fixes photovoltaic cell centre position compared to prior art by holding part, and rolling wheel is set
In photovoltaic cell edge, photovoltaic cell is bent, as mobile strut assemblies are moved, photovoltaic cell by reversed bending,
So as to detect the endurance quality of monoblock photovoltaic cell, detection efficiency is improve, be the implementation of related process or Improving Measurements
Effect provides strong data foundation.
Further, the holding part is sucker, preferably vacuum cup.
Using above-mentioned preferred scheme, tested photovoltaic cell can be quickly fixed, contact more fully, will not be to photovoltaic
Cell piece produces additional injury.
Further, the fixed support is connected with height adjustment mechanism, is used to adjust the rolling wheel with the sticking
The difference in height of part.
Further, the fixed support is additionally provided with difference in height indicating graduation.
Using above-mentioned preferred scheme, photovoltaic cell amount of bow is adjusted according to difference in height indicating graduation, it is easy to adjust, carry
The versatility of device high.
Further, including multigroup mobile strut assemblies.
Using above-mentioned preferred scheme, various bend modes can be selected to detect photovoltaic cell.
Further, the drive device includes motor, connecting rod, and described connecting rod one end drives with the motor
End connection, the other end is connected with the mobile strut assemblies.
Using above-mentioned preferred scheme, simple structure drives one or more groups of shiftings by the rotation through connecting rod of motor
Dynamic strut assemblies shuttling movement on dragging track, it is stable.
Further, the mobile strut assemblies include overload protecting mechanism；The overload protecting mechanism includes mobile branch
Post, stop sleeve, ball, pressure ring, stage clip, regulation ring, the mobile pillar are provided with annular groove, and the stop sleeve is set in institute
State on mobile pillar, circular hole is provided with the annular groove corresponding position, the ball is arranged in circular hole, the pressure ring
Inclined-plane is contradicted on the ball, and the stage clip is contradicted on the pressure ring, and the other end of the stage clip is contradicted in the regulation
On ring, the regulation ring is threadedly attached on the cylinder of the stop sleeve.
Using above-mentioned preferred scheme, regulation ring can adjust the size of overload pressure or thrust, when photovoltaic cell pair
Mobile pillar institute imposed load exceeds setting value, and ball will jump out annular groove, mobile pillar be can relative stop sleeve to moving down
It is dynamic, prevent from producing photovoltaic cell and damage by mistake.
Further, the mobile strut assemblies also include failure inspection mechanism, the failure inspection mechanism include sleeve,
Spring, adjusting rod, detection sensor, the sleeve are set in the afterbody of the mobile pillar, and the spring is contradicted in the shifting
The lower surface of dynamic pillar, the adjusting rod is threadedly attached in the screwed hole of the barrel bore, and the adjusting rod is contradicted
In the spring other end, the detection sensor is arranged on the stack shell of the sleeve, and the detection sensor is used to detect
The lower shifting signal of the mobile pillar afterbody.
Using above-mentioned preferred scheme, adjusting rod can be with the setting of failure of adjustment power, when photovoltaic cell in durable test
Rupture, when mobile pillar pushes up top photovoltaic cell, photovoltaic cell is obviously reduced to the pressure of mobile pillar, now moves
Pillar will no longer produce the downward movement of relative sleeve, the detection of detection sensor to be produced less than the lower shifting signal of mobile pillar afterbody
Raw alarm, can in time find the failure of photovoltaic cell, be easy to the comparative analysis to endurance.
Further, the sliding block is arranged on the sleeve bottom, and the connecting rod is connected on the sleeve stack shell.
Using above-mentioned preferred scheme, be easy to overload protection, failure detection mobile strut assemblies stably along cunning
Row track runs.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the present invention；
Fig. 2 is the overlooking the structure diagram of dragging track of the present invention；
Fig. 3 is the structural representation of one embodiment of the present invention；
Fig. 4 is the structural representation of one embodiment of the present invention；
Fig. 5 is the present invention to a kind of schematic diagram of bend mode of photovoltaic cell；
Fig. 6 is the present invention to a kind of schematic diagram of bend mode of photovoltaic cell；
Fig. 7 is the present invention to a kind of schematic diagram of bend mode of photovoltaic cell；
Fig. 8 is the structural representation of mobile strut assemblies of the invention.
The title of the corresponding component in figure represented by digital and letter：
1- moves bracket；11- rolling wheels；The quiet brackets of 2-；21- holding parts；3- moves strut assemblies；31- overload protection machines
Structure；310- moves pillar；311- stop sleeves；312- balls；313- pressure rings；314- stage clips；315- regulation rings；32- failure detections
Mechanism；320- sleeves；321- springs；322- adjusting rods；323- detection sensors；33- sliding blocks；4- fixed supports；5- slides rail
Road；6- drive devices；61- motors；62- connecting rods；7- photovoltaic cells.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, a kind of counter-bending durable test device of photovoltaic cell, including：Dynamic bracket 1, top is provided with rolling
Pinch roller 11, rolling wheel 11 is contradicted in photovoltaic cell edge；Quiet bracket 2, top is provided with holding part 21, and holding part 21 is consolidated
Surely the center of photovoltaic cell is lived；Mobile strut assemblies 3, top is connected with dynamic bracket 1, and bottom is provided with sliding block 33；Gu
Fixed rack 4, top is connected with quiet bracket 2；Dragging track 5, sliding block 33 is slided in its sliding groove；Drive device 6, drives and moves
Dynamic strut assemblies 3 are slided along dragging track 5；There is difference in height in rolling wheel 11, holding part 21 and cell piece contact position.
As shown in Fig. 2 dragging track 5 matches with photovoltaic cell profile.
Beneficial effect using above-mentioned technical proposal is：Photovoltaic cell centre position is fixed by holding part 21,
Rolling wheel 11 is arranged on photovoltaic cell edge, and photovoltaic cell is bent, as mobile strut assemblies 3 are moved, photovoltaic cell
Piece, so as to detect the endurance quality of monoblock photovoltaic cell, improves detection efficiency by reversed bending, is related process or changes
The implementation result of kind measure provides strong data foundation.
As shown in Figure 3-4, in other implementation methods of the invention, the mesh of more test modes is provided to reach
, in Fig. 3, rolling wheel 11 is double roller ball forms, and photovoltaic cell 7 is arranged between ball；In Fig. 4, in order to realize to photovoltaic
Cell piece 7 realizes distortion durable test, and rolling wheel 11 is set to different height.Using the beneficial effect of above-mentioned technical proposal
It is：Photovoltaic cell edge can preferably be clamped, there is provided more rich test mode.
In other implementation methods of the invention, the purpose of cell piece, holding part 21 are conveniently fixed to reach
It is sucker, preferably vacuum cup.Beneficial effect using above-mentioned technical proposal is：Tested photovoltaic cell can quickly be fixed
Piece, contact more fully, will not produce additional injury to photovoltaic cell.
In other implementation methods of the invention, in order to reach the purpose of regulation amount of bow, fixed support 4 is connected with height
Degree governor motion, is used to adjust the difference in height of rolling wheel 11 and holding part 21；Fixed support 4 is additionally provided with difference in height and indicates to carve
Degree.Beneficial effect using above-mentioned technical proposal is：Photovoltaic cell amount of bow, regulation side are adjusted according to difference in height indicating graduation
Just, the versatility of device is improved.
In other implementation methods of the invention, in order to reach the purpose that various ways bend photovoltaic cell, including
Multigroup mobile strut assemblies 3.Beneficial effect using above-mentioned technical proposal is：Various bend modes can be selected to photovoltaic cell
Piece is detected.
As shown in figure 5, there is provided 4 rolling wheels 11, simulation photovoltaic cell 7 by under harsh case of bending, 4 rolling wheels
Cycle rotation is to the durability test of photovoltaic cell 7 simultaneously.
As shown in fig. 6-7, there is provided 2 rolling wheels 11 carry out bending durable test to photovoltaic cell 7, with 2 rollings
The movement of pinch roller 11, the bent intermediate line of photovoltaic cell 7 also changes therewith, and bent intermediate line is progressively changed into Fig. 7 from Fig. 6
Diagonal positions, so to the reversed bending test everywhere of monoblock photovoltaic cell.
In other implementation methods of the invention, in order to reach the purpose that stabilized driving moves strut assemblies, dress is driven
Putting 6 includes motor 61, connecting rod 62, and the one end of connecting rod 62 be connected with the drive end of motor 61, the other end and moves pillar group
Part 3 is connected.Beneficial effect using above-mentioned technical proposal is：Simple structure, by the band of rotation through connecting rod 62 of motor 61
One or more groups of mobile strut assemblies 3 shuttling movement on dragging track 5 is moved, it is stable.
As shown in figure 8, in other implementation methods of the invention, in order to reach the purpose of overload protection, mobile pillar
Component 3 includes overload protecting mechanism 31；Overload protecting mechanism 31 includes mobile pillar 310, stop sleeve 311, ball 312, pressure ring
313rd, stage clip 314, regulation ring 315, mobile pillar 310 are provided with annular groove, and stop sleeve 311 is set on mobile pillar 310,
Circular hole is provided with the annular groove corresponding position, ball 312 is arranged in circular hole, the inclined-plane of pressure ring 313 is contradicted in ball
On 312, stage clip 314 is contradicted on pressure ring 313, and the other end of stage clip 314 is contradicted in regulation ring 315, and regulation ring 315 passes through spiral shell
Line is connected on the cylinder of stop sleeve 311.Beneficial effect using above-mentioned technical proposal is：Regulation ring 315 can adjust overload
The size of pressure or thrust, when photovoltaic cell exceeds setting value to 310 imposed loads of mobile pillar, ball 312 will jump out
Annular groove, the relative stop sleeve 311 of mobile pillar 310 i.e. meeting is moved down, and is prevented from producing photovoltaic cell and is damaged by mistake.
In other implementation methods of the invention, in order to reach the purpose of failure detection, mobile strut assemblies 3 also include
Failure inspection mechanism 32, failure inspection mechanism 32 includes sleeve 320, spring 321, adjusting rod 322, detection sensor 323, sleeve
320 afterbodys for being set in mobile pillar 310, spring 321 is contradicted in the lower surface of mobile pillar 310, and adjusting rod 322 passes through screw thread
It is connected in the screwed hole of the inner chamber of sleeve 320, adjusting rod 322 is contradicted in the other end of spring 321, and detection sensor 323 is arranged on
On the stack shell of sleeve 320, detection sensor 323 is used to detect the lower shifting signal of the afterbody of mobile pillar 310.Using above-mentioned technical side
The beneficial effect of case is：Adjusting rod 322 can be mobile when photovoltaic cell rupture in durable test with the setting of failure of adjustment power
When pillar 310 pushes up top photovoltaic cell, photovoltaic cell is obviously reduced to the pressure of mobile pillar 310, now mobile branch
Post 310 will no longer produce the downward movement of relative sleeve 320, and the detection of detection sensor 323 is less than under the mobile afterbody of pillar 310
Shifting signal, produces alarm, can in time find the failure of photovoltaic cell, is easy to the comparative analysis to endurance.
In other implementation methods of the invention, in order to reach the purpose of stable operation, sliding block 33 is arranged on sleeve 320
Bottom, connecting rod 62 is connected on the stack shell of sleeve 320.Beneficial effect using above-mentioned technical proposal is：Be easy to overload protection,
The mobile strut assemblies of failure detection are stably run along dragging track.
The above embodiments merely illustrate the technical concept and features of the present invention, its object is to allow ordinary skill people
Member will appreciate that present disclosure and be carried out that it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all cover within the scope of the present invention.
Claims (10)
1. the counter-bending durable test device of a kind of photovoltaic cell, it is characterised in that including：
Dynamic bracket, top is provided with rolling wheel, and the rolling wheel is contradicted in photovoltaic cell edge；
Quiet bracket, top is provided with holding part, and the holding part fixes the center of photovoltaic cell；
Mobile strut assemblies, top is connected with the dynamic bracket, and bottom is provided with sliding block；
Fixed support, top is connected with the quiet bracket；
Dragging track, the sliding block is slided in its sliding groove；
Drive device, drives the mobile strut assemblies to be slided along the dragging track.
2. the counter-bending durable test device of photovoltaic cell according to claim 1, it is characterised in that the holding part
It is sucker, preferably vacuum cup.
3. the counter-bending durable test device of photovoltaic cell according to claim 2, it is characterised in that the fixed support
Height adjustment mechanism is connected with, is used to adjust the difference in height of the rolling wheel and the holding part.
4. the counter-bending durable test device of photovoltaic cell according to claim 3, it is characterised in that the fixed support
It is additionally provided with difference in height indicating graduation.
5. the counter-bending durable test device of photovoltaic cell according to claim 1, it is characterised in that including multigroup described
Mobile strut assemblies.
6. the counter-bending durable test device of photovoltaic cell according to claim 5, it is characterised in that the drive device
Including motor, connecting rod, described connecting rod one end is connected with the motor drive end, the other end and the mobile pillar group
Part is connected.
7. according to any described counter-bending durable test devices of photovoltaic cell of claim 1-6, it is characterised in that the shifting
Dynamic strut assemblies include overload protecting mechanism.
8. the counter-bending durable test device of photovoltaic cell according to claim 7, it is characterised in that the overload protection
Mechanism includes mobile pillar, stop sleeve, ball, pressure ring, stage clip, regulation ring, and the mobile pillar is provided with annular groove, described
Stop sleeve is set on the mobile pillar, and circular hole is provided with the annular groove corresponding position, and the ball is arranged on circle
In hole, the inclined-plane of the pressure ring is contradicted on the ball, and the stage clip is contradicted on the pressure ring, the other end of the stage clip
Contradict in the regulation ring, the regulation ring is threadedly attached on the cylinder of the stop sleeve.
9. the counter-bending durable test device of photovoltaic cell according to claim 8, it is characterised in that the mobile pillar
Component also includes failure inspection mechanism, and the failure inspection mechanism includes sleeve, spring, adjusting rod, detection sensor, the set
Jacket casing is located at the afterbody of the mobile pillar, and the spring is contradicted in the lower surface of the mobile pillar, and the adjusting rod passes through
It is threaded in the screwed hole of the barrel bore, the adjusting rod is contradicted in the spring other end, the detection sensing
Device is arranged on the stack shell of the sleeve, and the detection sensor is used to detect the lower shifting signal of the mobile pillar afterbody.
10. the counter-bending durable test device of photovoltaic cell according to claim 9, it is characterised in that the sliding block peace
Mounted in the sleeve bottom, the connecting rod is connected on the sleeve stack shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306978.4A CN106918518B (en) | 2017-05-04 | 2017-05-04 | Photovoltaic cell piece bending resistance endurance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306978.4A CN106918518B (en) | 2017-05-04 | 2017-05-04 | Photovoltaic cell piece bending resistance endurance test device |
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| Publication Number | Publication Date |
|---|---|
| CN106918518A true CN106918518A (en) | 2017-07-04 |
| CN106918518B CN106918518B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710306978.4A Active CN106918518B (en) | 2017-05-04 | 2017-05-04 | Photovoltaic cell piece bending resistance endurance test device |
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| CN107817178A (en) * | 2017-10-31 | 2018-03-20 | 沈家豪 | A kind of bar for arm strength building test device |
| CN112003565A (en) * | 2020-08-21 | 2020-11-27 | 理天光电科技(苏州)有限公司 | Flexible battery bending test device |
| CN112858258A (en) * | 2020-12-29 | 2021-05-28 | 泰州隆基乐叶光伏科技有限公司 | Photovoltaic device dynamic EL test equipment and test method |
| CN114136775A (en) * | 2021-11-18 | 2022-03-04 | 安徽科技学院 | Performance testing device for low-dimensional photoelectric material |
| CN116879004A (en) * | 2023-07-31 | 2023-10-13 | 扬州中环半导体科技有限公司 | Photovoltaic cell piece bending resistance endurance test device |
| CN116989970A (en) * | 2023-09-27 | 2023-11-03 | 四川泽丰锂能新能源科技有限公司 | New energy battery pack impact resistance detection device and use method |
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| CN114136775A (en) * | 2021-11-18 | 2022-03-04 | 安徽科技学院 | Performance testing device for low-dimensional photoelectric material |
| CN114136775B (en) * | 2021-11-18 | 2023-12-12 | 安徽科技学院 | Performance test device for low-dimensional photoelectric material |
| CN116879004A (en) * | 2023-07-31 | 2023-10-13 | 扬州中环半导体科技有限公司 | Photovoltaic cell piece bending resistance endurance test device |
| CN116879004B (en) * | 2023-07-31 | 2024-02-13 | 扬州中环半导体科技有限公司 | Photovoltaic cell piece bending resistance endurance test device |
| CN116989970A (en) * | 2023-09-27 | 2023-11-03 | 四川泽丰锂能新能源科技有限公司 | New energy battery pack impact resistance detection device and use method |
| CN116989970B (en) * | 2023-09-27 | 2023-12-08 | 四川泽丰锂能新能源科技有限公司 | New energy battery pack impact resistance detection device and use method |
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| CN106918518B (en) | 2023-10-31 |
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