A multi-purpose battery test fixture

Abstract

The utility model belongs to battery test technical field discloses a multipurpose battery test fixture, multipurpose battery test fixture includes insulating test platform, a plurality of contact conductive parts, a plurality of contact switches, positive pole conductive part and negative pole conductive part, a plurality of contact conductive parts interval arrangement, every contact conductive part all embeds insulating test platform, be provided with a plurality of conductive contacts along its length direction interval arrangement on every contact conductive part, the surface setting of conductive contact penetrates out insulating test platform, a plurality of contact switches and a plurality of contact conductive parts one -to -one corresponding setting, positive pole conductive part and negative pole conductive part install in insulating test platform, and be located at the both sides of contact switch, and contact switch can be conducted with one of positive pole conductive part and negative pole conductive part. The multipurpose battery test fixture has very high universality, can be adapted to different structure and different size sample, tests different sample and does not need to replace fixture repeatedly, is favorable for reducing test cost.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, and in particular to a multi-purpose battery testing fixture. Background Technology

[0002] Perovskite solar cells, as a novel type of solar cell, typically involve IV (current-voltage) and EQE (electro-quantum efficiency) testing during characterization. These tests require fixtures, with different fixtures adapted to the sample's size and structure for convenient testing. Furthermore, different sample structures necessitate different testing methods for EQE (external quantum efficiency) testing. For both EQE and IV (current-voltage) testing of perovskite solar cells, existing fixtures have fixed and limited applicability. Different sizes and structures of samples require the design and purchase of different fixtures, increasing testing costs. Utility Model Content

[0003] The purpose of this invention is to provide a multi-purpose battery testing fixture. This multi-purpose battery testing fixture has high versatility and can be adapted to samples with different structures and sizes. It does not require repeated fixture changes when testing different samples, which helps to reduce testing costs.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model discloses a multi-purpose battery testing fixture, comprising: an insulation test platform; multiple conductive contact elements, the multiple conductive contact elements being spaced apart, each conductive contact element being embedded in the insulation test platform, each conductive contact element having multiple conductive contacts spaced apart along its length direction a, the conductive contacts extending out of the surface of the insulation test platform; multiple contact switches, the multiple contact switches being configured one-to-one with the multiple conductive contact elements; a positive electrode conductive element and a negative electrode conductive element, the positive electrode conductive element and the negative electrode conductive element being mounted on the insulation test platform and located on both sides of the contact switches, the contact switches being capable of conducting with one of the positive electrode conductive element and the negative electrode conductive element.

[0006] In some embodiments, the multipurpose battery testing fixture further includes a plurality of elastic elements, each of which is configured to correspond one-to-one with a plurality of conductive contacts. One end of each elastic element is connected to the conductive contact element, and the other end is connected to the conductive contact.

[0007] In some embodiments, the multipurpose battery test fixture further includes a positive terminal connection post and a negative terminal connection post mounted on the insulation test bench. The positive terminal connection post is connected to the positive conductive element and is used to connect to the positive terminal of an external power source. The negative terminal connection post is connected to the negative conductive element and is used to connect to the negative terminal of the external power source.

[0008] In some embodiments, the multipurpose battery test fixture further includes: two conductive connecting posts for connecting a test structure in contact with a test sample; and two conductive switches electrically connected to the two conductive connecting posts respectively, the two conductive switches being located between the positive conductive element and the negative conductive element, and capable of conducting with one of the positive conductive element and the negative conductive element.

[0009] In some specific embodiments, the test structure includes two clamping members, which are connected to two conductive connecting posts via wires. The two clamping members are used to clamp the positive and negative electrodes of the test sample, respectively.

[0010] In some specific embodiments, the test structure further includes: a conductive rod, one end of which is rotatably and vertically mounted on the conductive connecting post; and a conductive contact, which is movably mounted on the conductive rod along its length and is used to contact the test sample.

[0011] In some more specific embodiments, the test structure further includes: a first buckle, one end of which is sleeved on the conductive connecting post, the first buckle being used to engage the conductive rod; and a second buckle, which is sleeved on the conductive rod, the conductive contact being inserted through the second buckle.

[0012] In some embodiments, the multipurpose battery test fixture further includes a liftable base for supporting the insulation test bench.

[0013] In some specific embodiments, the base includes: a support base, which is spaced apart from the insulation test bench; and a movable bracket, one end of which is connected to the support base and the other end of which is connected to the insulation test bench, the movable bracket being used to adjust the height of the insulation test bench relative to the support base.

[0014] In some more specific embodiments, the insulation test bench is provided with two spaced-apart first slide grooves, and the support base is provided with two spaced-apart second slide grooves; the movable bracket includes two connecting rods, each connecting rod having its two ends slidably disposed in the second slide groove; two cross brackets, the two cross brackets being spaced apart, with one end of each cross bracket slidably mounted in the first slide groove, and the other end of each cross bracket being rotatably connected to the connecting rods; and a screw, the screw being threadedly engaged with the two connecting rods, the screw driving the two connecting rods to move toward or away from each other when rotating, so as to change the height of the cross brackets.

[0015] The beneficial effects of this utility model's multi-purpose battery clamp are as follows: Since the contact switch can be connected to either the positive or negative conductive component, toggling the contact switch can make the conductive component positively charged, negatively charged, or uncharged. Because each conductive component has multiple conductive contacts, in actual testing, conductive contacts with different charging states can be set in different shapes and sizes of areas on the insulation test bench according to actual needs. This makes the multi-purpose battery test clamp of this embodiment highly versatile, adaptable to samples of different structures and sizes. Testing different samples does not require repeated clamp changes, which helps reduce testing costs.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a perspective view of the multi-purpose battery clamp according to Embodiment 1 of this utility model;

[0018] Figure 2 This is a top view of the multipurpose battery clamp according to Embodiment 2 of this utility model;

[0019] Figure 3 This is a side view of the multipurpose battery clamp according to Embodiment 2 of this utility model;

[0020] Figure 4 This is a front view of the multipurpose battery clamp according to Embodiment 2 of this utility model;

[0021] Figure 5 This is a perspective view of the insulation test bench of the multipurpose battery clamp according to Embodiment 2 of this utility model;

[0022] Figure 6 This is a perspective view of the multipurpose battery clamp according to Embodiment 2 of this utility model;

[0023] Figure 7This is a schematic diagram of the structure of the multi-purpose battery clamp of this utility model placed on the testing equipment;

[0024] Figure 8 This is a schematic diagram of the first test sample of the multi-purpose battery clamp of this utility model;

[0025] Figure 9 This is a schematic diagram of the second type of test sample tested by the multi-purpose battery clamp of this utility model;

[0026] Figure 10 This is a schematic diagram of the third type of test sample for the multi-purpose battery clamp of this utility model;

[0027] Figure 11 This is a schematic diagram of the fourth type of test sample for the multi-purpose battery clamp of this utility model;

[0028] Figure 12 This is a schematic diagram of the fifth type of test sample for the multi-purpose battery clamp of this utility model;

[0029] Figure 13 This is a schematic diagram of the sixth test sample for the multi-purpose battery clamp of this utility model.

[0030] Figure label:

[0031] 100. Multipurpose battery testing fixture; 1. Insulation testing platform; 101. First slide groove; 102. Surface; 2. Contact conductive element; 3. Conductive contact; 4. Contact switch; 5. Positive conductive element; 6. Negative conductive element; 7. Elastic element; 8. Positive connecting post; 9. Negative connecting post; 10. Conductive connecting post; 11. Conductive switch; 12. Clamping element; 13. Wire; 14. Conductive rod; 15. Conductive contact element; 16. First buckle; 17. Second buckle; 18. Base; 181. Support base; 1811. Second slide groove; 182. Movable bracket; 1821. Connecting rod; 1823. Cross bracket; 1822. Screw; 200. Test sample; 300. Testing equipment. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] Example 1:

[0036] This utility model discloses a multi-purpose battery testing fixture 100, for reference... Figure 1 As shown, the multi-purpose battery test fixture 100 includes an insulation test platform 1, multiple contact conductive elements 2, multiple contact switches 4, a positive conductive element 5, and a negative conductive element 6. The multiple contact conductive elements 2 are spaced apart, and each contact conductive element 2 is embedded in the insulation test platform 1. Each contact conductive element 2 is provided with multiple conductive contacts 3 spaced apart along its length direction a. The conductive contacts 3 are provided to extend out of the surface 102 of the insulation test platform 1. The multiple contact switches 4 are provided in a one-to-one correspondence with the multiple contact conductive elements 2. The positive conductive element 5 and the negative conductive element 6 are installed on the insulation test platform 1 and are located on both sides of the contact switch 4. The contact switch 4 can conduct electricity with one of the positive conductive element 5 and the negative conductive element 6. It is understandable that, since the contact switch 4 can be connected to one of the positive conductive element 5 and the negative conductive element 6, toggling the contact switch 4 can make the contact conductive element 2 positively charged, negatively charged, or uncharged. Since each contact conductive element 2 is provided with multiple conductive contacts 3, in the actual testing process, conductive contacts 3 in different shapes and sizes can be set according to actual needs in the insulation test bench 1. This makes the multi-purpose battery test fixture 100 of this embodiment highly versatile and can be adapted to test samples 200 with different structures and sizes. Testing different test samples 200 does not require repeated fixture changes, which helps to reduce testing costs.

[0037] It should be added that, during the actual testing process, the reference... Figure 7As shown, after placing the battery assembly on the multi-purpose battery test fixture 100, the multi-purpose battery test fixture 100 is placed on the test equipment 300 and tested below the light source. In the actual test process, if the light spot formed on the battery assembly is a large light spot, that is, the length and width of the light spot are greater than or equal to the sub-cells on the battery assembly, for unencapsulated components, each electrode of the battery assembly faces downward and contacts the corresponding conductive contact 3. The actual light spot area is the area of ​​the multiple sub-cells to be tested, that is, the photon count is = (area of ​​the multiple sub-cells to be tested / light spot area) * total photon count. The external quantum efficiency of the multiple cells of the battery assembly can be tested by running the test equipment 300. If the light spot is small, meaning its length and width are both less than or equal to the sub-cells on the battery module, for unpackaged battery modules, each electrode of the battery module faces downwards and contacts its corresponding conductive contact 3. The light spot is then applied to the area to be tested on the battery module. To test the external quantum efficiency of the nth cell in the battery module, the corresponding switch of the sub-cell under test is turned on, and the test equipment 300 is run to test the external quantum efficiency of this single cell in the battery module. For packaged battery modules, the light spot is applied to the area to be tested on the battery module, the bias light of the test equipment 300 is turned on, and the non-sub-cells in the module are turned on. The test is then run to test the external quantum efficiency of this single cell in the battery module. When testing the external quantum efficiency of two or more sub-cells in a battery module, for unencapsulated modules, each electrode of the battery module should face downwards and contact the corresponding conductive contact 3 to ensure that the positive and negative terminals of the sub-cells under test are connected to the device. At the same time, the spot area of ​​the testing device 300 should be able to cover an area greater than or equal to that of the sub-cells under test, where the actual spot area is the area of ​​the sub-cells under test. That is, the number of photons is = (area of ​​the sub-cells under test / spot area) * total number of photons. Running the testing device 300 can test the external quantum efficiency of the multiple cells in the battery module.

[0038] Example 2:

[0039] The multi-purpose battery test fixture 100 of this embodiment adds several auxiliary structures based on the first embodiment.

[0040] Optional, see reference Figure 2 and Figure 5As shown, the multi-purpose battery test fixture 100 also includes a positive terminal connection post 8 and a negative terminal connection post 9 mounted on the insulation test bench 1. The positive terminal connection post 8 is connected to the positive conductive element 5 and is used to connect to the positive terminal of an external power supply. The negative terminal connection post 9 is connected to the negative conductive element 6 and is used to connect to the negative terminal of an external power supply. It is understandable that in actual testing, the positive conductive element 5 and the negative conductive element 6 need to be connected to the positive and negative terminals of the external power supply, respectively. By adding the positive terminal connection post 8 and the negative terminal connection post 9 to the insulation test bench 1, in actual operation, only conductive wires are needed to connect the positive terminal connection post 8 and the negative terminal connection post 9 to the positive and negative terminals of the power supply, respectively, thus achieving conductivity between the positive conductive element 5 and the negative conductive element 6 and the positive and negative terminals of the external power supply. The operation is very convenient.

[0041] Optionally, the insulation test bench 1 is further embedded with two conductive structures. One conductive structure is connected at one end to the positive electrode connection post 8 and at the other end to the positive electrode conductive element 5. The other conductive structure is connected at one end to the negative electrode connection post 9 and at the other end to the negative electrode conductive element 6. This facilitates the connection between the positive electrode connection post 8 and the positive electrode conductive element 5, as well as between the negative electrode connection post 9 and the negative electrode conductive element 6. It should be noted that in embodiments of this invention, the conductive structure can be a conductive metal rod or an electrical wire, whichever is chosen based on actual needs.

[0042] Optional, see reference Figure 2 and Figure 5 As shown, the multi-purpose battery test fixture 100 also includes two conductive connecting posts 10 and two conductive switches 11. The two conductive connecting posts 10 are used to connect the test structure that contacts the test sample 200. The two conductive switches 11 are electrically connected to the two conductive connecting posts 10 respectively. The two conductive switches 11 are located between the positive conductive element 5 and the negative conductive element 6, and can be connected to one of the positive conductive element 5 and the negative conductive element 6. It can be understood that the conductive switch 11 can be connected to one of the positive conductive element 5 and the negative conductive element 6. Moving the conductive switch 11 can make the conductive connecting post 10 positively charged, negatively charged, or uncharged. The test structure that contacts the test sample 200 is connected to the conductive connecting post 10. In the actual testing process, the type of test structure can be changed according to the testing needs, thereby meeting the needs of various tests on the test sample 200. In this embodiment, by adding a test structure and cooperating with multiple conductive contacts 3, various tests on the test sample 200 can be completed, thereby expanding the applicability of the multi-purpose battery test fixture 100 of this embodiment.

[0043] Optionally, the test structure includes two clamping members 12, which are connected to two conductive connecting posts 10 via wires 13. The two clamping members 12 are used to clamp the positive and negative electrodes of the test sample 200, respectively. It is understood that, with reference to... Figure 13As shown, in actual operation, the test sample 200 can be placed on multiple conductive contacts 3, and the positive and negative terminals of the test sample 200 can be clamped by two clamping parts 12. Then, the two conductive switches 11 are respectively connected to the positive conductive part 5 and the negative conductive part 6, so that the test sample 200 is connected to the external power supply. At this time, the test equipment 300 is started, so that the light spot emitted by the test equipment 300 covers the effective area of ​​the entire component. Running the test equipment 300 can test the EQE data or IV data of the packaged component.

[0044] Optionally, the test structure further includes a conductive rod 14 and a conductive contact 15. One end of the conductive rod 14 is rotatably and vertically mounted on the conductive connecting post 10. The conductive contact 15 is movably mounted on the conductive rod 14 along its length and is used to contact the test sample 200. It is understood that, with reference to... Figures 8-9 As shown, during the testing of small components, the test sample 200 can be placed on multiple conductive contacts 3, and the position of the conductive contact 15 can be adjusted so that it presses against the test sample 200. Then, the conductivity state of the contact switch 4 can be adjusted according to actual needs, and the test can be performed. In this process, the function of the conductive contact 15 is to press the test sample 200 firmly to prevent the test sample 200 from shifting during the test, thus avoiding any impact on the test results.

[0045] refer to Figure 10 As shown, during the silicon battery testing process, the test sample 200 can be placed on multiple conductive contacts 3, and the position of the conductive contact 15 can be adjusted so that it presses against the conductive grid lines on the test sample 200. The conductivity of the conductive switch 11 and the contact switch 4 can then be adjusted for testing. In this process, the conductive contact 15 serves two purposes: firstly, it presses the test sample 200 firmly to prevent displacement during testing, thus avoiding any impact on the test results; secondly, it enables the test sample 200 to conduct electricity. Therefore, by setting the conductive rod 14 and the conductive contact 15, displacement of the test sample 200 during testing can be prevented, thus avoiding any impact on the test results. Furthermore, the multi-purpose battery testing fixture 100 of this embodiment can be applied to test samples 200 of different materials, further expanding the applicability of the multi-purpose battery testing fixture 100.

[0046] Optionally, the test structure also includes a first latch 16 and a second latch 17. One end of the first latch 16 is fitted onto the conductive connecting post 10, and the first latch 16 is used to engage the conductive rod 14. The second latch 17 is fitted onto the conductive rod 14, and the conductive contact 15 passes through the second latch 17. It is understood that the first latch 16, fitted onto the conductive connecting post 10, allows for adjustment of the angle and height of the conductive rod 14 during operation by rotating or adjusting the height of the first latch 16. This facilitates both the connection between the conductive rod 14 and the conductive connecting post 10 and the adjustment of the conductive rod 14. The second latch 17, fitted onto the conductive rod 14, allows for adjustment of the position of the conductive contact 15 during operation by adjusting the position of the second latch 17. The conductive contact 15 can also adjust its height as needed, facilitating both the connection between the conductive rod 14 and the conductive contact 15 and the adjustment of the conductive contact 15. Of course, in other embodiments of this utility model, the connection method between the conductive rod 14 and the conductive contact 15, and between the conductive rod 14 and the conductive connecting post 10, can be adjusted according to actual needs and is not limited to the above description.

[0047] Optional, see reference Figure 3 and Figure 4 As shown, the multi-purpose battery testing fixture 100 also includes a height-adjustable base 18, which supports the insulation test bench 1. Logically, during actual testing, the testing equipment 300 is equipped with a light source, and the light spot generated by the light source needs to cover the entire test sample 200. By adding the height-adjustable base 18 below the insulation test bench 1, the distance between the test sample 200 and the light source can be adjusted during actual operation, ensuring that the light spot generated by the light source can cover the entire test sample 200, thereby ensuring testing accuracy.

[0048] Optionally, the base 18 includes a support 181 and a movable bracket 182. The support 181 is spaced apart from the insulation test bench 1. One end of the movable bracket 182 is connected to the support 181, and the other end is connected to the insulation test bench 1. The movable bracket 182 is used to adjust the height of the insulation test bench 1 relative to the support 181. It is understood that the support 181 ensures the stability of the entire base 18, thereby ensuring the stability of the insulation test bench 1. In actual operation, adjusting the movable bracket 182 allows for stable and convenient adjustment of the height of the insulation test bench 1 relative to the support 181.

[0049] Alternatively, the insulation test bench 1 is provided with two spaced-apart first slide grooves 101, and the support base 181 is provided with two spaced-apart second slide grooves 1811; the movable bracket 182 includes two connecting rods 1821, two cross brackets 1823 and a screw 1822, the two ends of each connecting rod 1821 are slidably disposed in the second slide grooves 1811, the two cross brackets 1823 are spaced apart, and one end of each cross bracket 1823 is slidably installed in the first slide groove 101, the other end of each cross bracket 1823 is rotatably connected to the connecting rod 1821, and the screw 1822 is threadedly engaged with the two connecting rods 1821. Understandably, the screw 1822 has two threads with opposite directions of rotation, which are connected to two connecting rods 1821 respectively. When it is necessary to adjust the height of the insulation test bench 1, it is only necessary to rotate the screw 1822 to drive the two connecting rods 1821 to move towards or away from each other. During the sliding of the connecting rods 1821 in the second slide groove 1811, the top of the cross bracket 1823 also slides in the first slide groove 101, so that the cross angle of the cross bracket 1823 changes, thereby realizing the adjustment of the height of the insulation test bench 1. In the whole adjustment process, only the screw 1822 needs to be rotated, which is very convenient to operate.

[0050] Of course, it should be noted that in other embodiments of this utility model, the movable bracket 182 can be directly constructed using driving components such as jacks and electric push rods, and is not limited to the structure described above.

[0051] Optional, see reference Figure 6 As shown, the multi-purpose battery testing fixture 100 also includes multiple elastic elements 7, each corresponding to a multiple conductive contact 3. One end of each elastic element 7 is connected to the conductive contact 2, and the other end is connected to the conductive contact 3. It can be understood that the elastic element 7 positioned between the conductive contact 3 and the conductive contact 2 acts as a buffer when the test sample 200 is placed on the conductive contact 3, reducing the impact force between the test sample 200 and the conductive contact 3. This protects the test sample 200, reduces the probability of damage to the conductive contact 3, and extends the service life of the conductive contact 3. Further optionally, the elastic element 7 can be selected from structures such as tension springs, compression springs, or elastic columns, depending on actual needs. The specific structure of the elastic element 7 is not limited here.

[0052] The following is for reference. Figures 8-13 Six test examples are described for the Multipurpose Battery Test Fixture 100.

[0053] Test Example 1:

[0054] refer to Figure 8As shown, the test sample 200 is a small battery device. During the test, the electrodes of the small battery device are placed downwards and in contact with the conductive contact 3. The conductive rod 14 is rotated and the position of the conductive contact 15 is adjusted so that the conductive contact 15 is pressed onto the small battery device for fixation. The contact switches 4 numbered h, i, and j slide upwards to connect to the positive conductive component 5, and the contact switch 4 numbered k slides downwards to connect to the negative conductive component 6. The screw 1822 is rotated to adjust the test sample 200 to a suitable height. The light spot formed by the light source covers the effective area of ​​the small battery device. The test equipment 300 is then used to test the EQE data of the small battery device at the corresponding position.

[0055] Test Example 2:

[0056] refer to Figure 9 As shown, the test sample 200 is a small battery device. During the test, the electrodes of the small battery device are placed downwards and in contact with the conductive contact 3. The conductive rod 14 is rotated and the position of the conductive contact 15 is adjusted so that the conductive contact 15 is pressed onto the small battery device for fixation. The contact switches 4 numbered g and j slide upwards to connect to the positive conductive component 5, and the contact switches 4 numbered h and i slide downwards to connect to the negative conductive component 6. The screw 1822 is rotated to adjust the test sample 200 to a suitable height. The light spot formed by the light source covers the effective area of ​​the small battery device. The test equipment 300 is then run to test the EQE data or IV data of the small battery device at the corresponding position.

[0057] Test Example 3:

[0058] refer to Figure 10 As shown, the test sample 200 is a silicon battery. During the test, the lower grid line of the silicon battery is positioned downwards to contact the conductive contact 3 as closely as possible. The conductive rod 14 is rotated and the position of the conductive contact 15 is adjusted so that the conductive contact 15 presses against the conductive grid line on the silicon battery. The conductive switch 11, numbered a, slides upwards to connect to the positive conductive component 5. The contact switches 4, numbered c, d, e, f, g, h, i, j, k, l, m, and n, slide downwards to connect to the negative conductive component 6. The screw 1822 is rotated to adjust the test sample 200 to a suitable height. The light spot formed by the light source covers the effective area of ​​the silicon battery. The test equipment 300 is then used to test the EQE or IV data of the silicon battery at the corresponding location.

[0059] Test Example 4:

[0060] refer to Figure 11As shown, test sample 200 is a packaged perovskite module. During the test, the packaged perovskite module is placed on the insulating test bench 1, with each cell of the packaged perovskite module facing downwards and in contact with the corresponding conductive contact 3. The screw 1822 is rotated to adjust the packaged perovskite module to a suitable height, and the light spot of the light source covers the entire effective area of ​​the packaged perovskite module. Then, the conductivity state of the contact switch 4 is adjusted according to the position of the test cell. For example, if it is necessary to measure the EQE or IV data of the third cell, the contact switch 4 numbered e slides upwards to connect to the positive conductive element 5, and the contact switch 4 numbered f slides downwards to connect to the negative conductive element 6. The test equipment 300 is then run to test the EQE or IV data of the third cell.

[0061] Test Example 5:

[0062] refer to Figure 12 As shown, test sample 200 is a packaged perovskite module. During the test, the packaged perovskite module is placed on the insulating test platform 1, with each cell of the packaged perovskite module facing downwards and in contact with the corresponding conductive contact 3. The screw 1822 is rotated to adjust the packaged perovskite module to a suitable height, ensuring the light spot covers the entire effective area of ​​the packaged perovskite module. Then, the conductivity state of the contact switch 4 is adjusted according to the cell number. For example, if it is necessary to measure the EQE or IV data of five cells, the contact switch 4 numbered e slides upwards to connect to the positive conductive element 5, and the contact switch 4 numbered j slides downwards to connect to the negative conductive element 6. Running the test equipment 300 will then test the EQE or IV data of the corresponding five cells. Test Example Six:

[0063] refer to Figure 13 As shown, the test sample 200 is a packaged perovskite module. During the test, the positive and negative terminals of the packaged perovskite module are connected to two conductive connecting posts 10 respectively through the clamp 12. The conductive switch 11 numbered a slides upward to connect to the positive conductive component 5, and the conductive switch 11 numbered p slides downward to connect to the negative conductive component 6. The screw 1822 is rotated to adjust the packaged perovskite module to a suitable height. The light spot of the light source covers the entire effective area of ​​the packaged perovskite module. The test equipment 300 can be used to test the EQE or IV data of the packaged perovskite module.

[0064] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A multi-purpose battery testing fixture, characterized in that, include: Insulation test bench; Multiple conductive contact elements are provided, with the multiple conductive contact elements spaced apart. Each conductive contact element is embedded in the insulation test bench. Each conductive contact element is provided with multiple conductive contacts spaced apart along its length direction. The conductive contacts extend out of the surface of the insulation test bench. Multiple contact switches are provided, and each of the multiple contact switches is configured to correspond one-to-one with a multiple of the contact conductive elements; A positive conductive element and a negative conductive element are mounted on the insulation test bench and located on both sides of the contact switch. The contact switch is capable of conducting with one of the positive and negative conductive elements.

2. The multi-purpose battery testing fixture according to claim 1, characterized in that, It also includes multiple elastic elements, each of which is configured to correspond one-to-one with a multiple conductive contact. One end of each elastic element is connected to the conductive contact element, and the other end is connected to the conductive contact.

3. The multi-purpose battery testing fixture according to claim 1, characterized in that, It also includes a positive terminal connection post and a negative terminal connection post installed on the insulation test bench. The positive terminal connection post is connected to the positive conductive element and is used to connect to the positive terminal of an external power supply. The negative terminal connection post is connected to the negative conductive element and is used to connect to the negative terminal of the external power supply.

4. The multi-purpose battery testing fixture according to any one of claims 1-3, characterized in that, Also includes: Two conductive connecting posts are used to connect the test structure in contact with the test sample; Two conductive switches are electrically connected to two conductive connecting posts respectively. The two conductive switches are located between the positive conductive element and the negative conductive element, and can be connected to one of the positive conductive element and the negative conductive element.

5. The multi-purpose battery testing fixture according to claim 4, characterized in that, The test structure includes two clamping members, which are connected to two conductive connecting posts via wires. The two clamping members are used to clamp the positive and negative electrodes of the test sample, respectively.

6. The multi-purpose battery testing fixture according to claim 4, characterized in that, The test structure also includes: A conductive rod, one end of which is rotatably and vertically mounted on the conductive connecting post; A conductive contact is movably mounted on the conductive rod along its length and is used to contact the test sample.

7. The multi-purpose battery testing fixture according to claim 6, characterized in that, The test structure also includes: A first buckle, one end of which is sleeved on the conductive connecting post, is used to snap the conductive rod; The second buckle is sleeved on the conductive rod, and the conductive contact is inserted through the second buckle.

8. The multi-purpose battery testing fixture according to any one of claims 1-3, characterized in that, It also includes a height-adjustable base for supporting the insulation test bench.

9. The multi-purpose battery testing fixture according to claim 8, characterized in that, The base includes: Support base, which is spaced apart from the insulation test bench; A movable bracket, one end of which is connected to the support base and the other end of which is connected to the insulation test bench, is used to adjust the height of the insulation test bench relative to the support base.

10. The multi-purpose battery testing fixture according to claim 9, characterized in that, The insulation test bench is provided with two spaced-apart first sliding grooves, and the support base is provided with two spaced-apart second sliding grooves; the movable bracket includes... Two connecting rods, each having its two ends slidably disposed in the second sliding groove. Two cross brackets are spaced apart, and one end of each cross bracket is slidably mounted in the first slide groove, and the other end of each cross bracket is rotatably connected to the connecting rod; A screw, which is threadedly engaged with two connecting rods, can drive the two connecting rods to move toward or away from each other when the screw rotates, so as to change the height of the cross bracket.

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