Aluminum shell battery edge voltage and blue film insulation performance testing device

Abstract

The utility model provides an aluminum shell battery edge voltage and blue film insulation performance testing device which comprises a base. A fixed pressing plate base and a movable pressing plate base are installed on the base, a fixed pressing plate is arranged on the fixed pressing plate base, and a movable pressing plate and a pressurizing mechanism used for pushing the movable pressing plate to be close to the fixed pressing plate are arranged on the movable pressing plate base. Wherein a space for accommodating a to-be-tested battery is formed between the fixed pressing plate and the movable pressing plate, and the movable pressing plate clamps and applies pressure to the to-be-tested battery under the pushing of the pressurizing mechanism; meanwhile, a material receiving mechanism is further arranged on the base and used for bearing the batteries and achieving position adjustment in the horizontal direction and the height direction; and a measuring mechanism is also arranged on the fixed pressing plate / or the movable pressing plate and is used for measuring battery edge voltage and blue film insulation performance data. According to the utility model, batch side voltage measurement of the square aluminum shell battery can be completed efficiently, quickly and accurately; in addition, when the side voltage is measured, the insulation performance of the battery blue film can be detected at the same time.

Description

Technical Field

[0001] The utility model relates to the field of battery testing equipment, in particular to a device for testing the edge voltage of an aluminum shell battery and the insulation performance of a blue film. Background Art

[0002] With the rise of automotive power batteries and energy storage batteries in recent years, domestic battery manufacturers mostly use aluminum shell square batteries with relatively high battery energy density because of their relatively simple structure, lighter overall accessory weight, and relatively high energy density.

[0003] However, in the process of long-term storage or use of some aluminum shell batteries, the situation of shell corrosion and liquid leakage may occur. This will not only directly lead to battery failure, but also cause environmental pollution, and there are also relatively large potential safety hazards. The main reasons for the liquid leakage of aluminum shell batteries are as follows: ① There are corrosive substances in the environment where the battery is stored or used, which are in direct contact with the battery shell and corrode the shell from the outside; ② The voltage between the shell and the pole column inside the battery is relatively high, and an electrochemical reaction occurs between the shell, battery materials and electrolyte, resulting in corrosion of the aluminum shell. Among them, in order to avoid the shell corrosion problem caused by "high voltage between the shell and the pole column", the edge voltage of the battery can be tested in advance.

[0004] Currently, "edge voltage testing" usually adopts manual operation, that is, manually connecting two test pens to the battery, one connected to the positive pole column and the other connected to the aluminum shell. However, this method has low efficiency, and due to the high uncontrollability of human factors, there are often problems of inaccessibility or insensitivity. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a device for testing the edge voltage of an aluminum shell battery and the insulation performance of a blue film. This device can not only efficiently, quickly and accurately complete the batch measurement of the edge voltage of aluminum shell batteries, but also simultaneously realize the insulation performance test of the blue film.

[0006] The utility model adopts the following technical solutions to solve the above technical problems:

[0007] A device for testing the edge voltage of an aluminum shell battery and the insulation performance of a blue film, comprising a base; a fixed pressure plate base and a moving pressure plate base are installed on the base, a fixed pressure plate is arranged on the fixed pressure plate base, a moving pressure plate and a pressing mechanism for pushing the moving pressure plate close to the fixed pressure plate are arranged on the moving pressure plate base; wherein, a space for accommodating the battery to be tested is formed between the fixed pressure plate and the moving pressure plate, and under the push of the pressing mechanism, the moving pressure plate clamps and presses the battery to be tested; meanwhile, a feeding mechanism is also arranged on the base for carrying the battery and realizing the position adjustment in the horizontal and height directions; a measuring mechanism is also arranged on the fixed pressure plate / or the moving pressure plate for measuring the edge voltage and blue film insulation performance data of the battery to be tested.

[0008] As one of the preferred embodiments of the present utility model, the pressurizing mechanism includes a pressurizing cylinder, a floating joint, and a pressure sensor; the pressurizing cylinder is installed on the base, and the output end of the pressurizing cylinder is connected to the floating joint, and the end of the floating joint is connected to the pressure sensor installed on the moving platen; when the output end of the pressurizing cylinder extends, it pushes the moving platen close to the fixed platen through the floating joint and the pressure sensor to clamp the battery to the set pressure value.

[0009] As one of the preferred embodiments of the present utility model, guide rails are provided on the base, and sliders are provided at the bottom of the base of the moving platen; the base of the moving platen realizes the approach / separation of the moving platen relative to the fixed platen through the sliding cooperation of the guide rails and the sliders.

[0010] As one of the preferred embodiments of the present utility model, the feeding mechanism includes a feeding platform, a positioning cylinder, a telescopic cylinder, and a lifting cylinder; the feeding platform is used to place the battery to be tested, and at the same time, a telescopic cylinder is provided on one side of the feeding platform, and a lifting cylinder is provided at the bottom, respectively realizing the horizontal and height position adjustment of the feeding platform, and a positioning cylinder is provided on the other side of the feeding platform for clamping and positioning the battery to be tested.

[0011] As one of the preferred embodiments of the present utility model, the measuring mechanism includes a measuring mounting plate, a probe pressing cylinder, a probe mounting plate, a side voltage test probe, and an insulation test probe; the measuring mounting plate is installed on the top of the fixed platen / or the moving platen, a probe pressing cylinder is provided on the measuring mounting plate, the bottom of the probe pressing cylinder is connected to the probe mounting plate, and the side voltage test probe and the insulation test probe are installed on the probe mounting plate.

[0012] As one of the preferred embodiments of the present utility model, two side voltage test probes are provided; when the probe pressing cylinder drives the side voltage test probe to press down, one side voltage test probe contacts the positive electrode post of the battery to be tested, and the other side voltage test probe contacts the negative side cover plate of the battery to be tested.

[0013] As one of the preferred embodiments of the present utility model, two insulation test probes are provided; when the probe pressing cylinder drives the insulation test probe to press down, the two insulation test probes respectively contact the cover plate of the battery to be tested.

[0014] As one of the preferred embodiments of the present utility model, conductive cloths are further provided on one side of the fixed platen and the moving platen close to the battery to be tested.

[0015] As one of the preferred embodiments of the present utility model, a code scanning mechanism is further provided on the top of the fixed platen / or the moving platen; the code scanning mechanism includes a code scanning gun mounting plate and a code scanning gun mounted on the code scanning gun mounting plate, and the code scanning gun is used to read the barcode information of the battery to be tested.

[0016] As one of the preferred embodiments of the present utility model, it is applicable to square aluminum shell batteries.

[0017] The advantages of the present utility model compared with the prior art are as follows:

[0018] (1) The present utility model can efficiently, quickly and accurately complete the batch side voltage measurement of square aluminum shell batteries; and at the same time of measuring the side voltage, it can also detect the insulation performance of the battery blue film;

[0019] (2) The present utility model can also bind the test data with the battery bar code read by the code scanning mechanism, and input the test data into the database for subsequent reading by the ERP system and historical data query. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the side voltage and blue film insulation performance test device for aluminum shell batteries in Embodiment 1;

[0021] Figure 2 It is a schematic diagram of the structure of another perspective of the side voltage and blue film insulation performance test device for aluminum shell batteries in Embodiment 1;

[0022] Figure 3 It is a front view structural schematic diagram of the side voltage and blue film insulation performance test device for aluminum shell batteries in Embodiment 1;

[0023] Figure 4 It is an enlarged partial structural view of the measuring mechanism in Embodiment 1;

[0024] Figure 5 It is an enlarged view of the matching structure between the measuring mechanism and the battery in Embodiment 1.

[0025] In the figure: 1 is the base, 11 is the guide rail, 2 is the fixed platen base, 21 is the fixed platen, 22 is the conductive cloth, 3 is the moving platen base, 31 is the moving platen, 32 is the slider, 4 is the pressurizing mechanism, 41 is the pressurizing cylinder, 42 is the floating joint, 43 is the pressure sensor, 44 is the pressurizing cylinder fixing plate, 5 is the material receiving mechanism, 51 is the material receiving platform, 52 is the positioning cylinder, 53 is the telescopic cylinder, 54 is the lifting cylinder, 55 is the telescopic cylinder mounting plate, 56 is the lifting cylinder mounting plate, 57 is the positioning cylinder mounting plate, 6 is the measuring mechanism, 61 is the measuring mounting plate, 62 is the probe pressing cylinder, 63 is the probe mounting plate, 64 is the side voltage test probe, 65 is the insulation test probe, 7 is the code scanning mechanism, 71 is the code scanning gun mounting plate, 72 is the code scanning gun, 8 is the battery. Detailed Embodiment

[0026] The following is a detailed description of the embodiments of the present utility model. These embodiments are implemented on the premise of the technical solution of the present utility model, and detailed implementation manners and specific operation processes are given. However, the protection scope of the present utility model is not limited to the following embodiments.

[0027] Embodiment 1

[0028] As Figures 1 to 5 shown, a testing device for the voltage and blue film insulation performance of a square aluminum shell battery in this embodiment includes a base 1; a fixed pressure plate base 2 and a moving pressure plate base 3 are installed on the base 1. A fixed pressure plate 21 is provided on the fixed pressure plate base 2, and a moving pressure plate 31 and a pressing mechanism 4 for pushing the moving pressure plate 31 close to the fixed pressure plate 21 are provided on the moving pressure plate base 3. Among them, a space for accommodating the battery 8 to be tested is formed between the fixed pressure plate 21 and the moving pressure plate 31, and conductive cloths 22 are respectively provided on the sides close to each other of the two; under the push of the pressing mechanism 4, the moving pressure plate 31 clamps and presses the battery 8 to be tested, and the conductive cloth 22 contacts the large surface blue film of the battery 8. At the same time, a material receiving mechanism 5 is also provided on the base 1 for carrying the battery 8 and realizing the position adjustment of the battery 8 in the horizontal and vertical directions. A measuring mechanism 6 is provided on the top of the moving pressure plate 31 for measuring the edge voltage and blue film insulation performance data of the battery 8 to be tested. A code scanning mechanism 7 is provided on the top of the fixed pressure plate 21 for reading the barcode information of the battery 8 to be tested.

[0029] Specifically, in this embodiment, a guide rail 11 is provided on the base 1, and a slider 32 is provided at the bottom of the moving pressure plate base 3; the moving pressure plate base 3 realizes the approach / separation of the moving pressure plate 31 relative to the fixed pressure plate 21 through the sliding cooperation of the guide rail 11 and the slider 32.

[0030] Specifically, in this embodiment, the pressing mechanism 4 includes a pressing cylinder 41, a floating joint 42, a pressure sensor 43, and a pressing cylinder fixing plate 44; the pressing cylinder 41 is installed on the base 1 through the pressing cylinder fixing plate 44. The output end of the pressing cylinder 41 is connected to the floating joint 42, and the end of the floating joint 42 is connected to the pressure sensor 43 installed on the moving pressure plate 31. When the output end of the pressing cylinder 41 extends, it pushes the moving pressure plate 31 close to the fixed pressure plate 21 through the floating joint 42 and the pressure sensor 43 to clamp the battery 8 to a set pressure value. During this period, the pressure sensor 43 monitors the pressure value in real time.

[0031] Specifically, in this embodiment, the material receiving mechanism 5 includes a material receiving platform 51, a positioning cylinder 52, a telescopic cylinder 53, a lifting cylinder 54, a telescopic cylinder mounting plate 55, a lifting cylinder mounting plate 56, and a positioning cylinder mounting plate 57. The telescopic cylinder 53 is mounted on the lower part of the base 1 through the telescopic cylinder mounting plate 55. The end of the telescopic cylinder 53 is connected to the lifting cylinder mounting plate 56. The lifting cylinder 54 is mounted at the bottom of the lifting cylinder mounting plate 56. The upper part of the lifting cylinder mounting plate 56 is connected to the material receiving platform 51. One side end of the material receiving platform 51 is connected to the positioning cylinder mounting plate 57, and the positioning cylinder 52 is mounted on the cylinder mounting plate 57. Among them, the material receiving platform 51 is used to place the battery 8 to be tested. The telescopic cylinder 53 and the lifting cylinder 54 are used to adjust the horizontal and height positions of the material receiving platform 51 respectively, and the positioning cylinder 52 is used to clamp and position the battery 8 to be tested.

[0032] Specifically, in this embodiment, the measuring mechanism 6 includes a measuring mounting plate 61, a probe pressing cylinder 62, a probe mounting plate 63, side voltage test probes 64, and insulation test probes 65. The measuring mounting plate 61 is mounted on the top of the moving pressure plate 31. The probe pressing cylinder 62 is arranged on the measuring mounting plate 61. The bottom of the probe pressing cylinder 62 is connected to the probe mounting plate 63. Two side voltage test probes 64 and two insulation test probes 65 are mounted on the probe mounting plate 63. When the probe pressing cylinder 62 drives the side voltage test probes 64 to press down, one side voltage test probe 64 contacts the positive pole column of the battery 8 to be tested, and the other side voltage test probe 64 contacts the negative side cover plate of the battery 8 to be tested. The two insulation test probes 65 respectively contact the cover plate of the battery 8 to be tested.

[0033] Specifically, in this embodiment, the code scanning mechanism 7 includes a code scanning gun mounting plate 71 and a code scanning gun 72 mounted on the code scanning gun mounting plate 71. The code scanning gun 72 is used to read the barcode information of the battery 8 to be tested and upload it to the database.

[0034] Usage method:

[0035] Place the battery 8 on the material receiving platform 51, and the positioning cylinder 52 clamps it to position and fix the battery 8. At the same time, the lifting cylinder 54 drives the material receiving platform 51 to descend to the test height position, and the telescopic cylinder 53 drives the material receiving platform 51 to approach the fixed pressure plate 21. The pressurizing cylinder 41 extends, and through the floating joint 42 and the pressure sensor 43, it pushes the moving pressure plate 31 to clamp the battery 8 to the set pressure value, and the pressure sensor 43 monitors the measured pressure value. The code scanning gun 72 is triggered to scan the code to read the information of the battery 8. The probe pressing cylinder 62 drives the probe mounting plate 63 and each test probe to press down and contact the pole column and the housing of the battery 8 to complete data measurement. After binding the measurement result data with the barcode of the battery 8, it is uploaded to the database for storage.

[0036] In addition, it should be noted that when the side voltage and the insulation performance of the blue film of this device are tested, the side voltage measurement and the insulation test are switched by a relay, and only one measurement or test work can be carried out at the same time. Moreover, during the side voltage measurement, the two side voltage test probes 64 of the measurement mechanism 6 are respectively connected to the positive and negative poles of the test voltmeter (the positive pole of the test voltmeter is connected to the probe in contact with the positive pole column of the battery 8, and the negative pole of the voltmeter is connected to the probe in contact with the cover plate of the battery 8). The side voltage value of the battery is obtained by triggering the test through the PLC, and the result is judged as OK or NG. During the insulation performance test of the blue film, the insulation test probe 65 and the conductive cloth 22 of the measurement mechanism 6 are respectively connected to the positive and negative poles of the insulation tester (the two insulation test probes 65 are connected by a wire and simultaneously connected to the positive pole of the insulation tester; the two conductive cloths 22 are short-circuited by a wire and connected to the negative pole of the insulation tester). The insulation test result is obtained by triggering through the PLC, and the result is judged as OK or NG.

[0037] Accordingly, the device of this embodiment can efficiently, quickly and accurately complete the batch measurement of the side voltage of the square aluminum shell battery 8; moreover, while measuring the side voltage, the insulation performance of the battery blue film can also be detected at the same time; in addition, this device can also bind the test data with the barcode of the battery 8 read by the barcode scanning mechanism 7 and enter the test data into the database for subsequent reading by the ERP system and historical data query.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A test device for the edge voltage of an aluminum-shell battery and the insulation performance of a blue film, characterized in that, It includes a base; a fixed platen base and a moving platen base are installed on the base. A fixed platen is provided on the fixed platen base, and a moving platen and a pressurizing mechanism for pushing the moving platen close to the fixed platen are provided on the moving platen base. Among them, a space for accommodating the battery to be tested is formed between the fixed platen and the moving platen, and under the push of the pressurizing mechanism, the moving platen clamps and presses the battery to be tested. At the same time, a material receiving mechanism is also provided on the base for carrying the battery and realizing the position adjustment in the horizontal and height directions. A measuring mechanism is also provided on the fixed platen / or the moving platen for measuring the edge voltage and blue film insulation performance data of the battery to be tested.

2. The aluminum shell battery edge voltage and blue film insulation performance testing device according to claim 1, wherein, The pressurizing mechanism includes a pressurizing cylinder, a floating joint and a pressure sensor; the pressurizing cylinder is installed on the base, and the output end of the pressurizing cylinder is connected to the floating joint, and the end of the floating joint is connected to the pressure sensor installed on the moving platen; when the output end of the pressurizing cylinder extends, it pushes the moving platen close to the fixed platen through the floating joint and the pressure sensor until the battery is clamped to the set pressure value.

3. The aluminum shell battery edge voltage and blue film insulation performance testing device according to claim 1, characterized in that A guide rail is provided on the base, and a slider is provided at the bottom of the moving platen base; the moving platen base realizes the approach / separation of the moving platen relative to the fixed platen through the sliding cooperation of the guide rail and the slider.

4. The aluminum shell battery edge voltage and blue film insulation performance testing device according to claim 1, characterized in that, The material receiving mechanism includes a material receiving platform, a positioning cylinder, a telescopic cylinder and a lifting cylinder; the material receiving platform is used for placing the battery to be tested. At the same time, a telescopic cylinder is provided on one side of the material receiving platform, and a lifting cylinder is provided at the bottom, respectively realizing the horizontal and height position adjustment of the material receiving platform. A positioning cylinder is provided on the other side of the material receiving platform for clamping and positioning the battery to be tested.

5. The aluminum shell battery edge voltage and blue film insulation performance testing device according to claim 1, characterized in that The measuring mechanism includes a measuring mounting plate, a probe pressing cylinder, a probe mounting plate, an edge voltage test probe and an insulation test probe; the measuring mounting plate is installed on the top of the fixed platen / or the moving platen. A probe pressing cylinder is provided on the measuring mounting plate, and the bottom of the probe pressing cylinder is connected to a probe mounting plate. The edge voltage test probe and the insulation test probe are installed on the probe mounting plate.

6. The aluminum shell battery edge voltage and blue film insulation performance testing device according to claim 5, characterized in that, There are two edge voltage test probes; when the probe pressing cylinder drives the edge voltage test probe to press down, one edge voltage test probe contacts the positive pole column of the battery to be tested, and the other edge voltage test probe contacts the negative side cover plate of the battery to be tested.

7. The aluminum shell battery edge voltage and blue film insulation performance testing device according to claim 5, characterized in that There are two insulation test probes; when the probe pressing cylinder drives the insulation test probe to press down, the two insulation test probes respectively contact the cover plate of the battery to be tested.

8. The aluminum shell battery edge voltage and blue film insulation performance testing device according to claim 1, characterized in that On the sides of the fixed platen and the moving platen close to the battery to be tested, conductive cloths are respectively provided.

9. The aluminum shell battery edge voltage and blue film insulation performance testing device according to claim 1, wherein A code scanning mechanism is also provided on the top of the fixed platen / or the moving platen; the code scanning mechanism includes a code scanning gun mounting plate and a code scanning gun installed on the code scanning gun mounting plate, and the code scanning gun is used for reading the bar code information of the battery to be tested.

10. The aluminum shell battery edge voltage and blue film insulation performance testing device according to any one of claims 1 to 9, characterized in that Suitable for square aluminum shell batteries.

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