Multifunctional blade battery test tool

Abstract

The multifunctional blade battery testing tool comprises a conductive element, a positive tab, a negative tab, a base plate and a size adjusting device, the base plates are arranged up and down; the two ends of the size adjusting device are fixed to the upper base plate and the lower base plate respectively and used for adjusting the distance between the two base plates. The conductive element is arranged on the base plate and is respectively connected with the positive tab and the negative tab; the conductive element is used for being electrically connected with a positive pole and a negative pole of a blade battery to be tested; and the positive tab and the negative tab are used for being connected with a clip type test line so as to test the electrical performance of the blade battery. According to the tool, the electric performance of the blade battery can be tested safely and conveniently by using the clamp type test line, the risk of welding a tab is avoided, and the tool can adapt to various blade battery cell sizes.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion blade battery testing, and in particular to a multifunctional blade battery testing fixture. Background Technology

[0002] Power batteries can be classified in various ways according to different classification standards. For example, based on the different cathode materials, they can be divided into ternary lithium batteries and lithium iron phosphate batteries; based on packaging technology, they can be divided into cylindrical, prismatic, and pouch batteries. Specifically, in cylindrical batteries, the positive and negative electrodes and the separator are wound onto the negative electrode post, encapsulated in a steel or aluminum shell, and then injected with electrolyte before sealing; prismatic batteries are manufactured using winding or stacking and are currently the product structure with the highest market share; pouch batteries use aluminum-plastic film packaging, which is to put a polymer shell over the liquid lithium-ion battery.

[0003] The "blade battery," which has emerged in recent years, is a battery product that is flatter and longer than traditional power batteries. The individual cells are relatively flat, and the individual cells are stacked to form a battery module. Blade batteries eliminate the module, increase the length of the lithium iron phosphate cells, and insert the cells side by side in an array into the battery pack.

[0004] Currently, blade batteries all use positive and negative terminals connected to external electrodes, making them incompatible with the clip-on test leads of conventional pouch battery test cabinets. A test cabinet specifically designed for blade batteries is required, or tabs must be soldered onto the positive and negative terminals. In actual testing, without specific testing equipment, it is impossible to perform electrical performance tests on blade batteries, potentially causing project delays. Furthermore, soldering tabs onto the positive and negative terminals incurs additional testing costs and safety risks. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a multifunctional blade battery testing fixture. Its purpose is to enable safe and convenient use of clip-type test leads for electrical performance testing, avoiding the risks of welding tabs and adapting to various blade battery cell sizes.

[0006] This utility model provides a blade battery testing fixture, which includes conductive elements, a positive electrode tab, a negative electrode tab, a pad, and a size adjustment device;

[0007] One pad is provided at the top and one at the bottom; the two ends of the size adjustment device are respectively fixed to the upper pad and the lower pad to adjust the distance between the two pads.

[0008] The conductive element is disposed on the pad and is connected to the positive electrode and the negative electrode respectively;

[0009] The conductive element is used to electrically connect to the positive and negative terminals of the blade battery to be tested; the positive and negative terminals are used to connect to the clip-on test leads to perform electrical performance testing on the blade battery.

[0010] Furthermore, the material of the pad or size adjustment device is PVC, PP or PET.

[0011] Furthermore, the positive and negative electrodes are made of materials with excellent electrical conductivity.

[0012] Furthermore, the pad is also provided with a guide rail; the conductive element is disposed on the guide rail and can move along the guide rail.

[0013] Furthermore, the guide rail is made of PVC, PP, or PET.

[0014] Furthermore, a conductive spring is provided inside the conductive element to press the positive and negative terminals of the blade battery.

[0015] Furthermore, the size adjustment device includes a toothed positioning rod, a housing, and a buckle; one end of the toothed positioning rod is fixed to the upper pad, and the other end is fitted inside the housing; one end of the housing is fixed to the lower pad; the buckle is hinged to the housing, and by rotating the buckle and engaging it with the teeth of the toothed positioning rod, the relative position of the toothed positioning rod and the housing can be fixed.

[0016] Furthermore, screw holes are provided on both sides of the upper and lower pads to cooperate with the cover plate to fix the position of the blade battery.

[0017] Furthermore, elongated grooves are provided on both sides of the cover plate; the positions of the elongated grooves correspond to the positions of the screw holes on the pad plate.

[0018] Furthermore, the cover plate is made of PVC, PP or PET.

[0019] This utility model provides a blade battery testing fixture that allows for safe and convenient use of commonly used clip-type test leads to perform electrical performance tests on blade batteries, avoiding the risks associated with welding tabs onto the blade battery. It is also compatible with various blade cell sizes, greatly simplifying the testing difficulty of blade batteries and improving their testing efficiency. Attached Figure Description

[0020] To gain a more complete understanding of this utility model, reference will now be made to the following description taken in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 A schematic diagram of the multifunctional blade battery testing fixture provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the size adjustment device in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the cover plate structure in this utility model.

[0024] The reference numerals in the attached figures are explained as follows:

[0025] 1. Conductive element; 2. Guide rail; 3. Positive electrode lug; 4. Negative electrode lug; 5. Conductive spring; 6. Pad; 7. Size adjustment device; 8. Screw hole; 9. Cover plate; 10. Long slot;

[0026] The size adjustment device 7 includes: 701, a toothed positioning rod; 702, a housing; and 703, a buckle. Detailed Implementation

[0027] To make the problems to be solved, the technical solutions, and the technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments and methods obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation and positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] This utility model provides a multifunctional blade battery testing fixture, see the attached drawings in the specification. Figure 1 The tooling includes a conductive element 1, a guide rail 2, a positive electrode tab 3, a negative electrode tab 4, a pad 6, and a size adjustment device 7.

[0030] See Figure 1 The pad 6 consists of an upper pad and a lower pad. The blade battery to be tested is positioned between the upper pad and the lower pad.

[0031] The material of the pad includes, but is not limited to, rigid plastics such as PVC, PP, and PET.

[0032] Preferably, both sides of the upper and lower pads are provided with screw holes 8 to cooperate with the cover plate 9 to fix the position of the blade battery.

[0033] The guide rail 2 includes an upper guide rail and a lower guide rail, which are respectively disposed on the outer side of the pad 6 along the length direction of the pad 6. The guide rail material includes, but is not limited to, rigid plastics such as PVC, PP, and PET.

[0034] The conductive element 1 is disposed on the guide rail 2 and can move along the guide rail 2.

[0035] The positive electrode tab 3 and the negative electrode tab 4 are respectively disposed on the outer side of the conductive element 1 and can move along the guide rail 2 with the conductive element 1. The material of the tabs includes, but is not limited to, aluminum. The positive electrode tab 3 and the negative electrode tab 4 can be rectangular or other shapes that are convenient for measurement. For example, when the test fixture is equipped with a cover plate, in order to allow the positive electrode tab 3 and the negative electrode tab 4 to extend beyond the outside of the cover plate, the shape of the positive electrode tab 3 and the negative electrode tab 4 can be set to L-shape.

[0036] Preferably, a conductive spring 5 is provided inside the conductive element 1 to press the positive and negative terminals of the blade battery. In this way, the positive electrode tab 3 and the negative electrode tab 4 can be electrically connected to the positive and negative terminals of the blade battery through the conductive element 1 and the conductive spring 5. The conductive spring 5 is made of materials with excellent conductivity, including but not limited to aluminum.

[0037] The two ends of the size adjustment device 7 are respectively fixed to the upper pad and the lower pad. By adjusting the length of the size adjustment device 7, the distance between the upper pad and the lower pad can be adjusted to accommodate different models of blade batteries.

[0038] The size adjustment device 7 can be an existing adjustment mechanism, such as a slide bar and a sleeve.

[0039] Figure 2 The diagram illustrates one type of size adjustment device 7. The adjustment device includes a toothed positioning rod 701 and a housing 702; one end of the toothed positioning rod 701 is fixed to the upper pad, and the other end is fitted inside the housing 702; one end of the housing 702 is fixed to the lower pad. When adjusting the length, the size of the entire device can be adjusted by adjusting the length of the toothed positioning rod 701 inside the housing 702 to accommodate blade batteries of different models and lengths. After size adjustment, the relative position of the toothed positioning rod 701 and the housing 702 can be fixed by rotating the buckle 703 hinged to the housing 702 and engaging the buckle 703 with the teeth of the toothed positioning rod 701.

[0040] The size adjustment device 7 can be made of, but is not limited to, rigid plastics such as PVC, PP, and PET.

[0041] Preferably, the multifunctional blade battery testing fixture also includes a cover plate 9. For example... Figure 3 As shown, long grooves 10 are provided on both sides of the cover plate 9; the position of the long grooves 10 corresponds to the position of the screw holes 8 on the pad plate 6.

[0042] In use, the cover plate 9 can cover the test fixture, the long groove 10 is aligned with the screw hole 8, and the position of the blade battery is fixed by bolts through the screw hole 8 and the long groove 10 to prevent the battery from falling off.

[0043] The cover material includes, but is not limited to, rigid plastics such as PVC, PP, and PET.

[0044] In use, the distance between the upper and lower pads is adjusted by the size adjustment device 7. The blade battery to be tested is placed between the upper and lower pads, and the positive and negative terminals of the blade battery are abutted against the upper and lower conductive springs 5. The buckle 703 and the toothed positioning rod 701 are fastened to fix the relative position between the upper and lower pads. A cover plate 9 is placed on the test fixture, and the long groove 10 is aligned with the screw holes 8 on the upper and lower pads. Bolts are used to fix the position of the blade battery through the screw holes 8 and the long groove 10 to prevent the battery from falling off. The positive electrode tab 3 and the negative electrode tab 4 are connected to the clamp-type test lines of the soft-pack battery test cabinet commonly used in the prior art to complete the test of the blade battery.

Claims

1. A multifunctional blade battery testing fixture, characterized in that, The tooling includes conductive elements, a positive electrode, a negative electrode, a pad, and a size adjustment device; One pad is provided at the top and one at the bottom; the two ends of the size adjustment device are respectively fixed to the upper pad and the lower pad to adjust the distance between the two pads. The conductive element is disposed on the pad and is connected to the positive electrode and the negative electrode respectively; The conductive element is used to electrically connect to the positive and negative terminals of the blade battery to be tested; the positive and negative terminals are used to connect to the clip-on test leads to perform electrical performance testing on the blade battery. The size adjustment device includes a toothed positioning rod, a housing, and a buckle; one end of the toothed positioning rod is fixed to the upper pad, and the other end is fitted inside the housing; one end of the housing is fixed to the lower pad; the buckle is hinged to the housing, and by rotating the buckle and engaging it with the teeth of the toothed positioning rod, the relative position of the toothed positioning rod and the housing can be fixed.

2. The test fixture according to claim 1, characterized in that, The material of the pad or size adjustment device is PVC, PP or PET.

3. The testing fixture according to claim 1, characterized in that, The positive and negative electrodes are made of materials with excellent electrical conductivity.

4. The testing fixture according to claim 1, characterized in that, The pad is also provided with a guide rail; the conductive element is disposed on the guide rail and can move along the guide rail.

5. The testing fixture according to claim 4, characterized in that, The guide rail is made of PVC, PP or PET.

6. The test fixture according to claim 1, characterized in that, A conductive spring is provided inside the conductive element to press the positive and negative terminals of the blade battery.

7. The test fixture according to claim 1, characterized in that, Both sides of the upper and lower pads are provided with screw holes to cooperate with the cover plate to fix the position of the blade battery.

8. The test fixture according to claim 7, characterized in that, The cover plate has elongated grooves on both sides; the positions of the elongated grooves correspond to the positions of the screw holes on the pad.

9. The test fixture according to claim 7, characterized in that, The cover plate is made of PVC, PP or PET.

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