Battery cell performance testing and electric quantity automatic balancing tool

Abstract

The utility model discloses a battery cell performance test and electric quantity automatic equalization tool, which comprises a charging and discharging device, a digital multimeter and a bottom plate, the charging and discharging device is electrically connected with the digital multimeter, and the bottom plate is connected with a first fixing plate and a second fixing plate which are oppositely arranged. A limiting plate for fixing the battery cell is arranged between the fixing plate I and the fixing plate II on the bottom plate; the first fixing plate is connected with a sliding rod, the end, away from the limiting plate, of the sliding rod is connected with a push-pull clamp, the end, close to the limiting plate, of the sliding rod is connected with a first pole piece, the side, facing the limiting plate, of the second fixing plate is connected with a second pole piece, and the first pole piece and the second pole piece are connected with charging and discharging equipment and a digital multimeter through connecting wire harnesses respectively. The bottom plate is provided with a supporting plate used for being connected with and supporting the push-pull type clamp. According to the utility model, the rapid, reliable and safe connection between the battery cell and the test equipment can be realized, multiple types of battery cells can be compatible, the voltage can be automatically detected, and the electric quantity required to be balanced can be calculated for electric quantity balancing.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery cell testing, and in particular relates to a battery cell performance test and automatic power balancing tool. Background Art

[0002] Currently, when the battery cells are undergoing electrical performance tests, the test lines of the test equipment cannot be directly connected to the positive and negative poles of the battery cells. It is necessary to weld adapters on the battery poles and then connect the test lines to the adapters. After the test is completed, the adapters need to be removed and the pole welds need to be polished smooth. This is inefficient and has a great impact on the quality of the battery cells, and they may even be unable to be reused.

[0003] After the test is completed, power balancing is performed based on the test results. The battery cell voltage needs to be manually tested to calculate the amount of power that needs to be charged or discharged, and then input into the device for balancing. Manual calculation errors or input errors often occur, resulting in low overall efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a battery cell performance test and automatic power balancing tool, which can realize fast, reliable and safe connection between the battery cell and the test equipment, is compatible with multiple battery cells, and automatically detects the voltage and calculates the power to be balanced for power balancing.

[0005] To achieve the above-mentioned purpose, the utility model provides a battery performance test and automatic power balancing tool, comprising a charging and discharging device, a digital multimeter and a bottom plate, wherein the charging and discharging device and the digital multimeter are electrically connected, and a fixing plate 1 and a fixing plate 2 arranged opposite to each other are connected to the bottom plate, and a limit plate for fixing the battery cell is provided between the fixing plate 1 and the fixing plate 2 on the bottom plate;

[0006] The fixed plate 1 is slidably connected with a slide bar, the end of the slide bar away from the limit plate is connected with a push-pull clamp, the end of the slide bar close to the limit plate is connected with a pole piece 1, the fixed plate 2 is connected with a pole piece 2 on the side facing the limit plate, and the pole piece 1 and the pole piece 2 are respectively connected to a charging and discharging device and a digital multimeter through a connecting harness;

[0007] The bottom plate is provided with a support plate for connecting and supporting the push-pull type clamp.

[0008] As a further solution of the utility model: a plurality of through grooves are provided on the bottom plate between the first fixing plate and the second fixing plate.

[0009] As a further solution of the utility model: the limiting plates are provided with two groups, and a plurality of limiting grooves for fixing the battery cells are evenly distributed on the limiting plates.

[0010] As a further solution of the utility model: the slide bar is a rectangular structure, and the slide bar slides on a fixed plate at a limited position.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] When conducting cell performance tests and cell power balancing, there is no need to weld adapters, which shortens the verification cycle by at least one day. In addition, there is no need to remove the adapters, which will not affect the quality of the cells.

[0013] It can effectively ensure the stability of pole connection during the test process, so as to ensure the accuracy of test data and the safety of excessive test time;

[0014] It can automatically test the cell voltage, automatically calculate the amount of electricity to be balanced, and automatically start electricity balancing, avoiding problems caused by human measurement, calculation, and input errors, and providing cell performance testing and electricity balancing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the battery cell performance test and automatic power balancing tooling.

[0016] Figure 2 It is a schematic diagram of the battery cell installation effect of the battery cell performance test and automatic power balancing tooling.

[0017] In the figure: 1. charging and discharging equipment, 2. digital multimeter, 3. bottom plate, 4. pole piece 2, 5. fixing plate 2, 6. connecting wire harness, 7. through slot, 8. limit plate, 9. limit slot, 10. pole piece 1, 11. fixing plate 1, 12. slide bar, 13. support plate, 14. push-pull clamp, 15. battery cell. DETAILED DESCRIPTION

[0018] The utility model will be further described below in conjunction with the accompanying drawings.

[0019] like Figure 1 As shown, the battery performance test and automatic power balancing tooling includes a charging and discharging device 1, a digital multimeter 2 and a bottom plate 3. In order to achieve weight reduction and insulation functions, the bottom plate 3 is made of bakelite. The charging and discharging device 1 and the digital multimeter 2 are electrically connected. The bottom plate 3 is connected with a relatively arranged fixing plate 11 and a fixing plate 2 5. A limiting plate 8 for fixing the battery cell 15 is provided between the fixing plate 1 11 and the fixing plate 2 5 on the bottom plate 3;

[0020] A slide bar 12 is slidably connected to the fixed plate 11, and a push-pull clamp 14 is connected to the end of the slide bar 12 away from the limit plate 8, and a pole piece 10 is connected to the end of the slide bar 12 close to the limit plate 8. A pole piece 2 4 is connected to the side of the fixed plate 2 5 facing the limit plate 8, and the pole piece 10 and the pole piece 2 4 are respectively connected to the charging and discharging device 1 and the digital multimeter 2 through the connecting harness 6;

[0021] A support plate 13 for connecting and supporting the push-pull clamp 14 is provided on the bottom plate 3. The push-pull clamp 14 is made to be flush with the slide bar 12 through the support plate 13, thereby ensuring the connection stability during the test process. The slide bar 12 can move horizontally and stably under the push of the push-pull clamp, thereby adaptively clamping battery cells 15 of different sizes.

[0022] When the performance test and power balancing of the battery cell 15 are performed, the battery cell 15 will generate heat. Furthermore, a plurality of through grooves 7 are provided on the bottom plate 3 between the fixing plate 1 11 and the fixing plate 2 5 . The through grooves 7 can enhance the heat dissipation at the bottom of the battery cell 15 , thereby ensuring the safety of the test.

[0023] In order to ensure the placement stability of the battery cells 15, two groups of limiting plates 8 are further provided, and a number of limiting grooves 9 for fixing the battery cells 15 are evenly distributed on the limiting plates 8. The battery cells 15 are evenly distributed in the limiting grooves 9, and gaps are left between adjacent battery cells 15, so as to promote air circulation and heat dissipation.

[0024] When testing cells 15 of different sizes, the push-pull clamp 14 is used to drive the slide bar 12 to adapt to the size of the cell 15. Furthermore, the slide bar 12 is a rectangular structure, and the slide bar 12 slides at the upper limit on the fixed plate 11. The slide bar 12 can only move horizontally, but not rotate, so as to prevent the pole piece 10 connected to the slide bar 12 from contacting the adjacent pole piece 10 when the slide bar 12 rotates, causing the cell 15 to short-circuit. The slide bar 12 is made of insulating material, which effectively prevents the pole of the cell 15 from being connected to the other components, ensuring the product and operator safety during the test process.

[0025] When the utility model is actually used, Figure 2 As shown, the battery cell 15 is placed in the limiting groove 9, and then the push-pull clamp 14 is used to push the pole piece 10 to move, so that the pole piece 10 and the pole piece 2 4 are connected to the positive and negative poles of the battery cell 15. After the battery cell 15 is fixed, the positive and negative poles are connected to the digital multimeter 2 and the charging and discharging device 1 through the connecting harness 6. The digital multimeter 2 detects the voltage of each battery cell 15, transmits the voltage of the battery cell 15 to the charging and discharging device 1, and then automatically calculates the amount of electricity that needs to be discharged or charged during electricity balancing according to the set program to balance the battery cells 15.

Claims

1. A battery cell performance test and automatic power balancing tool, comprising a charging and discharging device (1), a digital multimeter (2) and a base plate (3), wherein the charging and discharging device (1) and the digital multimeter (2) are electrically connected, and characterized in that: The bottom plate (3) is connected to a fixing plate 1 (11) and a fixing plate 2 (5) which are arranged opposite to each other, and a limiting plate (8) for fixing the battery cell (15) is provided between the fixing plate 1 (11) and the fixing plate 2 (5) on the bottom plate (3); The fixed plate 1 (11) is connected to a slide bar (12), one end of the slide bar (12) away from the limit plate (8) is connected to a push-pull clamp (14), one end of the slide bar (12) close to the limit plate (8) is connected to a pole piece 1 (10), the fixed plate 2 (5) is connected to a pole piece 2 (4) on the side facing the limit plate (8), and the pole piece 1 (10) and the pole piece 2 (4) are respectively connected to a charging and discharging device (1) and a digital multimeter (2) through a connecting harness (6); The bottom plate (3) is provided with a support plate (13) for connecting and supporting a push-pull type clamp (14).

2. The battery cell performance test and automatic charge balancing tool according to claim 1, characterized in that: The bottom plate (3) is provided with a plurality of through slots (7) between the first fixing plate (11) and the second fixing plate (5).

3. The battery cell performance test and automatic charge balancing tool according to claim 1 or 2, characterized in that: The limiting plates (8) are provided with two groups, and a plurality of limiting grooves (9) for fixing the battery core (15) are evenly distributed on the limiting plates (8).

4. The battery performance test and automatic charge balancing tool according to claim 1 or 2, characterized in that: The slide bar (12) is a rectangular structure, and the slide bar (12) slides within the limit position on the fixed plate (11).

Images