Battery formation and capacity grading equipment

Abstract

The utility model relates to the technical field of battery production equipment, and discloses battery formation and capacity grading equipment. The battery formation and capacity grading equipment comprises a charge and discharge test device, the charge and discharge test device comprises a test assembly, the test assembly comprises a test piece fixing seat and a plurality of test pieces, each test piece is connected to the test piece fixing seat through a mounting plate, and the position of the mounting plate in the length direction of the test piece fixing seat is adjustably arranged. According to the utility model, the distance between the adjacent number measuring pieces can be adjusted according to the thicknesses of the batteries with different specifications, so that the device can adapt to the batteries with different thicknesses. The universality and the flexibility of the device are greatly improved, the requirement for replacing different types of test assemblies is reduced, and the time and the cost are saved.

Description

Technical Field

[0001] This utility model relates to the field of battery production equipment technology, specifically to battery formation and capacity testing equipment. Background Technology

[0002] Battery charge-discharge testing is a crucial step in battery production and R&D. By conducting these tests, we can not only evaluate battery performance parameters such as capacity, internal resistance, and voltage characteristics, but also assess the battery's stability and lifespan under different charge-discharge conditions. Therefore, battery charge-discharge testing is essential for ensuring battery quality and reliability.

[0003] Although battery charge-discharge testing systems are widely used in the battery industry, existing systems still have significant limitations when dealing with batteries of different specifications. Charge-discharge testing systems primarily use positive and negative current probes pressed against the positive and negative terminals of the battery to charge it and monitor its voltage. Simultaneously, a negative pressure nozzle connects to the battery's electrolyte filling hole to extract and collect gases generated inside the battery during charge-discharge. Additionally, a temperature probe contacts the battery surface to monitor its temperature in real time. In actual production, multiple batteries are typically charged and discharged simultaneously. Multiple positive and negative current probes are fixedly mounted on their respective mounting bases to form current probe assemblies, while negative pressure nozzles and temperature probes are fixedly mounted on their respective mounting bases to form negative pressure and temperature components.

[0004] Currently, current probe assemblies, negative pressure nozzle assemblies, and temperature assemblies are typically customized to fit the specifications of the battery to be charged or discharged, and all current probes, negative pressure nozzles, and temperature probes are fixedly installed. Because there is currently no unified battery technology standard in the market, if the battery specifications change, the current probe assemblies, negative pressure nozzle assemblies, and temperature assemblies need to be redesigned and customized. This not only increases costs but also requires disassembling and replacing the entire battery charge / discharge testing system, which is time-consuming and labor-intensive. Utility Model Content

[0005] In view of this, the present invention provides a battery formation and capacity testing device to solve the problem of poor versatility of battery charge and discharge testing systems.

[0006] This utility model provides a battery formation and capacity testing device, including a charge-discharge testing device. The charge-discharge testing device includes a testing component, which includes a test piece holder and multiple test pieces. Each test piece is connected to the test piece holder via a mounting plate. The position of the mounting plate along the length of the test piece holder is adjustable.

[0007] Beneficial Effects: The battery formation and capacity testing equipment provided in this embodiment of the invention features a system where each test piece is connected to a test piece holder via a mounting plate. The position of the mounting plate along the length of the test piece holder is adjustable, meaning the spacing between adjacent test pieces is adjustable. When battery type needs to be changed, the mounting plate is disassembled and its position adjusted, the spacing between adjacent test pieces is adjusted according to the battery thickness, and then the test pieces are fixed back together via the mounting plate. This allows for rapid type changeover and is applicable to batteries of different specifications. The battery formation and capacity testing equipment provided by this invention significantly improves the versatility and flexibility of the device, reduces the need to replace test pieces of different models, and saves time and costs. Attached Figure Description

[0008] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the probe assembly in a battery formation and capacity testing device according to an embodiment of the present invention;

[0010] Figure 2 for Figure 1 The bottom view of the probe assembly shown;

[0011] Figure 3 for Figure 2 Enlarged view of a local structure in the image;

[0012] Figure 4 for Figure 1 A magnified view of a local structure of the probe assembly from another perspective;

[0013] Figure 5 This is a schematic diagram of the negative pressure component in a battery formation and capacity testing device according to an embodiment of the present invention;

[0014] Figure 6 for Figure 5 A bottom view of the negative pressure assembly shown;

[0015] Figure 7 for Figure 6 Enlarged view of a local structure in the image;

[0016] Figure 8 for Figure 7 A schematic diagram of the structure shown from another perspective;

[0017] Figure 9This is a schematic diagram of the structure of another mounting plate and fixing base in a battery formation and capacity testing device according to an embodiment of the present invention;

[0018] Figure 10 This is a schematic diagram of the temperature component in a battery formation and capacity testing device according to an embodiment of the present invention;

[0019] Figure 11 for Figure 10 An enlarged view of a portion of the structure in the bottom view of the temperature assembly shown;

[0020] Figure 12 This is a schematic diagram of the structure of a battery formation and capacity testing device according to an embodiment of the present invention;

[0021] Figure 13 for Figure 12 An enlarged view of a portion of the battery formation and capacity testing device shown.

[0022] Figure 14 for Figure 12 The image shows a side view of the battery formation and capacity testing device.

[0023] Figure 15 for Figure 12 A bottom view of the battery formation and capacity testing equipment shown.

[0024] Figure 16 This is a schematic diagram of the structure of a battery suitable for a battery formation and capacity testing device according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Test component; 11. Test piece holder; 111. Adjustment hole; 112. Slide groove; 113. Clearance groove; 12. Test piece; 13. Mounting plate; 131. Mounting hole; 14. Fastener; 101. Probe assembly; 102. Negative pressure assembly; 103. Temperature probe assembly; 2. Battery. Detailed Implementation

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

[0028] The following is combined Figures 1 to 16 The following describes embodiments of the present invention.

[0029] According to an embodiment of the present invention, a battery 2 formation and capacity testing device is provided, including a charge-discharge testing device. The charge-discharge testing device includes a testing component 1, which includes a test piece fixing seat 11 and a plurality of test pieces 12. Each test piece 12 is connected to the test piece fixing seat 11 by a mounting plate 13. The position of the mounting plate 13 along the length direction of the test piece fixing seat 11 is adjustable.

[0030] The battery 2 formation and capacity testing device provided in this embodiment of the invention features a system where each test piece 12 is connected to a test piece fixing base 11 via a mounting plate 13. The position of the mounting plate 13 along the length of the test piece fixing base 11 is adjustable, meaning the spacing between adjacent test pieces 12 is adjustable. When a battery 2 needs to be changed, the position of the mounting plate 13 is disassembled and adjusted, the spacing between adjacent test pieces 12 is adjusted according to the thickness of the battery 2, and then the test pieces 12 are fixed by the mounting plate 13. This allows for rapid changeover and is applicable to batteries 2 of different specifications. The battery 2 formation and capacity testing device provided by this invention greatly improves the versatility and flexibility of the device, reduces the need to replace test pieces 12 of different models, and saves time and costs.

[0031] In some embodiments, the mounting plate 13 is provided with mounting holes 131, and the test piece fixing seat 11 is provided with a set of a plurality of spaced adjustment holes 111 along its length direction. The adjustment holes 111 are adapted to the mounting holes 131. The mounting plate 13 and the test piece fixing seat 11 are detachably connected by fasteners 14, which pass through the mounting holes 131 and are correspondingly connected to the adjustment holes 111.

[0032] Specifically, since the test piece holder 11 is provided with several adjustment holes 111, when the position of the mounting plate 13 needs to be adjusted each time the battery 2 is changed, it is only necessary to align the mounting holes 131 of the mounting plate 13 with the corresponding adjustment holes 111 on the test piece holder 11, and then tighten them with fasteners 14. This reduces the positioning work of the mounting plate 13 and improves the efficiency of the changeover process. At the same time, since the mounting holes 131 of the mounting plate 13 are aligned with the corresponding adjustment holes 111 on the test piece holder 11 and connected with fasteners 14, the position of the mounting plate 13 is more securely fixed. The fasteners 14 provide a detachable connection, which is low in cost, easy to disassemble and assemble, flexible in adjustment, and convenient in maintenance.

[0033] In some embodiments, the mounting plate 13 has two mounting holes 131, which are respectively located on opposite sides of the test piece 12. Two sets of adjustment holes 111 are provided along the width direction of the test piece fixing seat 11. The two mounting holes 131 of the mounting plate 13 correspond to the adjustment holes 111 in the two sets respectively. The mounting plate 13 and the test piece fixing seat 11 are detachably connected by two fasteners 14.

[0034] The mounting plate 13 has two mounting holes 131, located on opposite sides of the test piece 12. Simultaneously, two sets of adjustment holes 111 are provided along the width of the test piece fixing seat 11. Thus, the mounting plate 13 can be fixed to the test piece fixing seat 11 via the two holes and the locking connection of the fasteners 14, making the assembly of the mounting plate 13 and the test piece 12 on it more stable and reliable. Furthermore, in some embodiments, the test piece 12 is fixedly disposed in the middle of the mounting plate 13.

[0035] In some embodiments, such as Figure 9 As shown, the mounting hole 131 is an oblong hole, and the distance between the centers of the two ends of the oblong hole is greater than or equal to the distance between the centers of the adjacent adjustment holes 111.

[0036] With this configuration, when changing the battery type 2, as the mounting plate 13 moves along the length direction of the test piece fixing seat 11, there will always be an adjustment hole 111 corresponding to the mounting hole 131 at any position. That is, the mounting plate 13 can be fixed to the position of the test piece fixing seat 11 by the fastener 14 at any position along the length direction of the test piece fixing seat 11, thereby making it compatible with different battery thicknesses 2.

[0037] In some embodiments, the number of adjustment holes 111 is greater than the number of test pieces 12.

[0038] Since the number of adjustment holes 111 is greater than the number of test pieces 12, each test piece 12 has multiple adjustment positions, which allows multiple spacings to be formed between adjacent test pieces 12 to accommodate more models of batteries 2. This improves the versatility of battery 2 conversion capacity testing equipment and reduces battery 2 replacement costs.

[0039] In some embodiments, the mounting plate 13 is provided with mounting holes 131, the test piece fixing seat 11 is provided with a slide groove 112, the slide groove 112 extends along the length direction of the test piece 12, and the mounting plate 13 is detachably connected to the slide groove 112 by fasteners 14 passing through the mounting holes 131.

[0040] This embodiment is an alternative embodiment. By providing a sliding groove 112 on the test piece fixing seat 11, when changing the battery 2, only the fastener 14 needs to be loosened without disassembly. When there is a sliding gap between the mounting plate 13 and the sliding groove 112, the mounting plate 13 slides along the sliding groove 112 to adjust the spacing between adjacent test pieces 12 to adapt to the thickness of the battery 2. After adjustment, the mounting plate 13 is then fixed to the sliding groove 112 by the fastener 14, thereby realizing the adjustment and fixation of the spacing between adjacent test pieces 12. With this structure, there is no need for hole positioning, making battery 2 changing simpler and easier to operate.

[0041] Of course, in some embodiments, positioning holes can also be provided on the slide groove 112, and the mounting plate 13 can be provided with assembly holes, which are aligned with a positioning hole. Fasteners 14 fix the mounting plate 13 to the positioning hole of the slide groove 112. When the mounting plate 13 is fixed to different positioning holes, the spacing between adjacent test pieces 12 changes accordingly to accommodate batteries 2 of different thicknesses.

[0042] In some embodiments, the mounting plate 13 has two mounting holes 131, which are respectively located on opposite sides of the test piece 12. The test piece fixing seat 11 has two sliding grooves 112 spaced apart along its width direction. The mounting plate 13 is detachably connected to the two sliding grooves 112 by two fasteners 14 passing through the two mounting holes 131 respectively.

[0043] The mounting plate 13 has two mounting holes 131, located on opposite sides of the test piece 12. Simultaneously, the test piece fixing seat 11 has two sliding grooves 112 spaced apart along its width. Thus, a mounting plate 13 can be fixed to the sliding grooves 112 via the two holes and the locking connection of fasteners 14, making the assembly of the mounting plate 13 and the test piece 12 on it more stable and reliable. Furthermore, in some embodiments, the test piece 12 is fixedly disposed in the middle of the mounting plate 13.

[0044] In some embodiments, the test piece holder 11 is provided with a clearance groove 113 through which the wires of the test piece 12 pass, and the clearance groove 113 extends along the length direction of the test piece holder 11.

[0045] By providing a clearance groove 113 in the middle of the test piece holder 11, the arrangement of the test piece 12 can be facilitated. Since the clearance groove 113 extends along the length of the test piece holder 11, the wires of multiple test pieces 12 can be simultaneously connected to the corresponding test piece 12 through the clearance groove 113.

[0046] In some embodiments, test component 1 is a current probe component 101, test component holder 11 is a current probe holder, and test component 12 is a current probe. In this case, the wire of test component 12 is a conductive wire.

[0047] Alternatively, test component 1 is a negative pressure component 102, test piece fixing seat 11 is a negative pressure component fixing seat, and test piece 12 is a negative pressure component; in this case, the wire of test piece 12 is a pipeline connected to the negative pressure component.

[0048] Alternatively, test component 1 is a temperature probe component 103, test piece holder 11 is a temperature probe holder, and test piece 12 is a temperature probe. In this case, the wire of test piece 12 is a wire that can transmit temperature signals.

[0049] Any one of the current probe assembly 101, the negative voltage assembly 102, and the temperature probe assembly 103 can be configured as the test assembly 1 in the above embodiment, or all three can be configured as the test assembly 1 in the above embodiment. Furthermore, the above lists various embodiments of the test assembly 1; the structures of the current probe assembly 101, the negative voltage assembly 102, and the temperature probe assembly 103 can be completely identical or partially identical.

[0050] In some embodiments, the current probe is a positive current probe or a negative current probe; the negative pressure component includes a negative pressure tube and a negative pressure nozzle that are interconnected.

[0051] Furthermore, the other end of the negative pressure tube is connected to the negative pressure cup via a pipeline.

[0052] In some embodiments, in the current probe assembly 101 and the negative pressure assembly 102, both the current probe holder and the negative pressure component holder are provided with adjustment holes 111. The current probe is connected to the current probe holder via a mounting plate 13 and a fastener 14, and the negative pressure component is connected to the negative pressure component holder via a mounting plate 13 and a fastener 14. In the temperature probe assembly 103, the temperature probe holder is provided with a sliding groove 112. The temperature probe is connected to the temperature probe holder via a mounting plate 13, and the fastener 14 passes through the mounting hole 131 of the mounting plate 13 and is tightened into the sliding groove 112.

[0053] Since both the current probe and the negative pressure component need to contact the battery, there are certain requirements for their installation strength. An adjustment hole 111 is used to align the mounting hole 131 of the mounting plate 13 with the adjustment hole 111, and fasteners 14 are used for connection. This ensures that the connection strength between the current probe and the current probe holder, as well as the connection strength between the negative pressure component and the negative pressure component holder, meets the requirements, thus ensuring the stability of the test results. The temperature probe only needs to contact the battery and has no installation strength requirements. Therefore, a sliding groove 112 without the adjustment hole 111 can be used. This simplifies the structure of the temperature probe holder, reduces manufacturing costs, and makes the temperature probe's position adjustment more convenient and efficient.

[0054] In some embodiments, a battery placement area is included, a charge / discharge test device is installed above the battery placement area, multiple test components 1 are provided and arranged parallel to each other along the length direction of the battery 2, and a test piece fixing seat 11 extends along the thickness direction of the battery 2.

[0055] Multiple test components 1 are set up and arranged in parallel along the length of battery 2. This saves space and can accommodate the positions of the terminals and injection holes in battery 2. The layout is reasonable and easy to operate.

[0056] In some embodiments, the test component 1 is also connected to a moving mechanism, which can drive the test component 1 to adjust along the height and length directions of the battery 2, thereby accommodating the testing of more different models of batteries 2.

[0057] Specifically, Figure 16 The image shows a battery 2 suitable for the battery 2 formation and capacity testing equipment provided in this embodiment of the present invention.

[0058] The battery 2 forming and capacity testing equipment provided in this embodiment of the utility model can improve the compatibility of batteries 2 with different thicknesses, reduce the investment in replacement parts, and reduce replacement costs. This utility model can complete the replacement of battery 2 on the equipment without disassembling any of the current probe assembly 101, negative pressure assembly 102 or temperature assembly, saving replacement workload, shortening the installation and debugging cycle, and improving work efficiency.

[0059] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A battery formation and capacity testing device, characterized in that, The device includes a charge-discharge test apparatus, which includes a test component (1). The test component (1) includes a test piece holder (11) and a plurality of test pieces (12). Each test piece (12) is connected to the test piece holder (11) via a mounting plate (13). The position of the mounting plate (13) along the length of the test piece holder (11) is adjustable.

2. The battery formation and capacity testing equipment according to claim 1, characterized in that, The mounting plate (13) is provided with mounting holes (131), and the test piece fixing seat (11) is provided with a set of several adjustable holes (111) spaced apart along its length. The adjustable holes (111) are adapted to the mounting holes (131). The mounting plate (13) and the test piece fixing seat (11) are detachably connected by fasteners (14). The fasteners (14) pass through the mounting holes (131) and are correspondingly connected to the adjustable holes (111).

3. The battery formation and capacity testing equipment according to claim 2, characterized in that, The mounting plate (13) has two mounting holes (131) located on opposite sides of the test piece (12). Two sets of adjustment holes (111) are provided along the width direction of the test piece fixing seat (11). The two mounting holes (131) of the mounting plate (13) correspond to the adjustment holes (111) in the two sets respectively. The mounting plate (13) and the test piece fixing seat (11) are detachably connected by two fasteners (14).

4. The battery formation and capacity testing equipment according to claim 2 or 3, characterized in that, The mounting hole (131) is an oblong hole, and the distance between the centers of the two ends of the oblong hole is greater than or equal to the distance between the centers of the adjacent adjustment holes (111).

5. The battery formation and capacity testing equipment according to claim 1, characterized in that, The mounting plate (13) is provided with mounting holes (131), and the test piece fixing seat (11) is provided with a sliding groove (112). The sliding groove (112) extends along the length direction of the test piece (12), and the mounting plate (13) is detachably connected to the sliding groove (112) by fasteners (14) passing through the mounting holes (131).

6. The battery formation and capacity testing equipment according to claim 5, characterized in that, The mounting plate (13) has two mounting holes (131) located on opposite sides of the test piece (12). The test piece fixing seat (11) has two grooves (112) spaced apart along its width. The mounting plate (13) is detachably connected to the two grooves (112) by two fasteners (14) passing through the two mounting holes (131).

7. The battery formation and capacity testing equipment according to claim 1, characterized in that, The test piece holder (11) is provided with a clearance groove (113) through which the wires of the test piece (12) pass, and the clearance groove (113) extends along the length direction of the test piece holder (11).

8. The battery formation and capacity testing equipment according to claim 1, characterized in that, The test component (1) is a current probe component (101), the test piece holder (11) is a current probe holder, and the test piece (12) is a current probe. Alternatively, the test component (1) is a negative pressure component (102), the test piece fixing seat (11) is a negative pressure component fixing seat, and the test piece (12) is a negative pressure component; Alternatively, the test component (1) may be a temperature probe component (103), the test piece holder (11) may be a temperature probe holder, and the test piece (12) may be a temperature probe.

9. The battery formation and capacity testing equipment according to claim 8, characterized in that, The current probe is either a positive current probe or a negative current probe; the negative pressure component includes a negative pressure tube and a negative pressure nozzle that are interconnected.

10. The battery formation and capacity testing equipment according to claim 1, characterized in that, The device includes a battery placement area, the charge and discharge test device is installed above the battery placement area, multiple test components (1) are arranged in parallel along the length direction of the battery (2), and the test piece fixing seat (11) extends along the thickness direction of the battery (2).

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