Rapid detection device for packaging and sealing performance of soft package battery

Abstract

The utility model belongs to the field of batteries, and discloses a rapid detection device for packaging and sealing performance of a soft package battery, which comprises a testing device, a temperature changing module, a clamping device, an electrolyte concentration detection probe and a data processing device, an accommodating chamber is formed in the testing device; the temperature changing module is arranged in the testing device and is used for adjusting the temperature in the accommodating chamber; the clamping device is placed in the accommodating chamber and is used for clamping a tested soft package battery; the electrolyte concentration detection probe is placed on the clamping device; and the data processing device is electrically connected with the electrolyte concentration detection probe. According to the utility model, the clamping device is placed in the testing device, and the temperature change of the testing device is controlled to accelerate the rapid aging of the soft package battery in the clamping device, so that the sealing performance of the soft package battery can be rapidly and effectively detected, and the safety performance and the overall quality level of the soft package battery are ensured.

Description

Technical Field

[0001] The utility model relates to the field of batteries, in particular to a device for quickly detecting the sealing performance of soft-pack battery packaging. Background Art

[0002] The packaging material of soft-pack batteries is aluminum-plastic film. During the production process, the sealing of the packaging needs to be tested to ensure that the internal space of the soft-pack batteries is isolated from the outside.

[0003] Currently, there are two methods for testing the sealing of soft-pack batteries: the first is to confirm the sealing of soft-pack batteries by their appearance and smell. There is an electrolyte with a pungent odor in the soft-pack battery. If the soft-pack battery is not sealed enough and leaks, judging the sealing of the soft-pack battery by smelling the odor is easily affected by personal subjective factors and may lead to misjudgment; the second method is to put the soft-pack battery aside for a period of time and observe whether the appearance of the battery shows any bloating. In addition, bloating of the soft-pack battery may be caused by failure of control during the manufacturing process of the soft-pack battery, which is not necessarily caused by insufficient sealing of the soft-pack battery. Therefore, the existing technology cannot effectively characterize the sealing strength of the soft-pack battery. This detection method is inefficient for automated production.

[0004] Therefore, the above two methods of detecting sealing performance cannot quickly, effectively and accurately detect the packaging sealing performance of soft-pack batteries. If the soft-pack batteries with poor sealing performance cannot be detected and selected, when multiple soft-pack batteries are working normally, the soft-pack batteries with poor sealing performance are prone to electrolyte leakage, causing serious safety problems such as battery short circuit, overheating and even fire and explosion. In addition, electrolyte leakage will cause damage to the internal components of the battery. Utility Model Content

[0005] The main purpose of this application is to provide a device for quickly detecting the sealing performance of soft-pack battery packaging, aiming to solve the current technical problem that the sealing performance of soft-pack battery packaging cannot be detected quickly, effectively and accurately.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a rapid detection device for the sealing performance of soft-pack battery packaging, including a testing device, a temperature-changing module, a clamping device, an electrolyte concentration detection probe and a data processing device;

[0007] A containing chamber is formed in the testing device;

[0008] The temperature-changing module is disposed in the testing device and is used to adjust the temperature in the containing chamber;

[0009] The clamping device is placed in the accommodating chamber and is used to clamp the soft-pack battery under test;

[0010] The electrolyte concentration detection probe is placed on the clamping device;

[0011] The data processing device is electrically connected to the electrolyte concentration detection probe.

[0012] Furthermore, a support plate for placing the clamping device is provided in the accommodating chamber.

[0013] Furthermore, the clamping device includes a second fixing plate in contact with the support plate and a first fixing plate corresponding to the second fixing plate, and the first fixing plate and the second fixing plate are locked and fixed to the soft-pack battery by bolts.

[0014] Furthermore, the electrolyte concentration detection probe is arranged at the edge of the first fixing plate.

[0015] Furthermore, the detection device also includes a thermocouple electrically connected to the data processing device, and the thermocouple is connected to a cell tab of each of the soft-pack batteries.

[0016] Furthermore, a raised support platform is formed on the inner wall of the accommodating chamber of the testing device, and the support plate is arranged on the support platform;

[0017] Furthermore, a through hole is provided on the frame of the testing device, and the electrolyte concentration detection probe and the conductive member of the thermocouple are connected to the data processing device through the through hole.

[0018] Furthermore, the testing device also includes a power supply module, a switch module and an environment control module, the power supply module is electrically connected to the switch module, the switch module is electrically connected to the environment control module, and the environment control module is electrically connected to the temperature variable module.

[0019] Furthermore, the testing device also includes a safety protection module, and the power supply module is electrically connected to the safety protection module.

[0020] Furthermore, the support plate is a grid-like structure, and a height between the support plate and a bottom plate of the test device is smaller than a height between the through hole and the bottom plate of the test device.

[0021] Beneficial effects:

[0022] The utility model places a clamping device in a testing device and controls the temperature change of the testing device to accelerate the rapid aging of the soft-pack battery in the clamping device, so that the packaging sealing performance of the soft-pack battery can be quickly and effectively detected, and the sealing performance of the soft-pack battery can be accurately fed back to the operator in the form of a chart through the electrolyte concentration detection probe and the thermocouple, thereby improving the accuracy of the soft-pack battery packaging sealing performance detection and ensuring the safety performance and overall quality level of the soft-pack battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of a testing device according to an embodiment of the utility model;

[0024] Figure 2 This is an overall schematic diagram of a clamping device according to an embodiment of the utility model;

[0025] Figure 3 This is a partial enlarged view of the entire A portion of the test device of one embodiment of the utility model;

[0026] Figure 4 This is a partial enlarged view of the entire B portion of the test device of one embodiment of the utility model;

[0027] Figure 5 This is a flow chart of a testing device according to an embodiment of the utility model;

[0028] Figure 6 The utility model is an electrolyte concentration detection probe and a thermocouple flow chart of an embodiment of the utility model.

[0029] in:

[0030] 1-data processing device; 2-accommodating chamber; 3-support plate; 4-through hole; 5-electrolyte concentration detection probe; 6-thermocouple; 7-first fixing plate; 8-second fixing plate; 9-soft-pack battery; 10-ear; 12-power module; 13-switch module; 14-environmental control module; 15-temperature variable module; 16-safety protection module; 17-sensing module; 18-signal processing module; 19-data acquisition module; 21-perception module; 22-compensation module; 23-measurement module; 25-bolt; 26-support platform; 27-frame; 28-conductive member; 101-testing device; 102-clamping device; 103-bottom plate.

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0034] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] Reference Figure 1A device for quickly detecting the sealing performance of a soft-pack battery package comprises a testing device 101, a temperature-changing module 15, a clamping device 102, an electrolyte concentration detection probe 5 and a data processing device 1; a receiving chamber 2 is formed in the testing device 101; the temperature-changing module 15 is arranged in the testing device 101, and is used to adjust the temperature in the receiving chamber; the clamping device 102 is placed in the receiving chamber 2, and is used to clamp the soft-pack battery 9 being tested; the electrolyte concentration detection probe 5 is placed on the clamping device 102; the data processing device 1 is electrically connected to the electrolyte concentration detection probe 5.

[0037] In the above embodiment, the rapid detection device for the sealing performance of the soft-pack battery package includes a test device 101, a variable temperature module 15, a clamping device 102, an electrolyte concentration detection probe 5 and a data processing device 1, and a containing chamber 2 is formed in the test device 101, so that the clamping device 102 is isolated from the external environment, preventing the external environment from interfering with the test results, ensuring the accuracy of the detection of the clamping device 102, and the temperature of the test environment can be better controlled by the containing chamber 2, improving the accuracy of the detection of the clamping device 102, and the containing chamber 2 can also provide a safe environment to prevent dangerous operation steps from causing harm to the operator or the external environment. Further, the variable temperature module 15 is arranged in the test device 101, and is used to adjust the temperature in the containing chamber, so that the temperature in the containing chamber 2 is adjusted according to the needs of the operator. By setting the variable temperature module 15, the test device 101 can simulate different temperature conditions, so as to more accurately evaluate the performance and reliability of the tested object at different temperatures.

[0038] Further, the clamping device 102 is placed in the accommodating chamber 2 to clamp the soft-pack battery 9 to be tested. The clamping device 102 is arranged in the accommodating chamber 2, so that the soft-pack battery 9 can be better controlled. By adjusting the temperature in the accommodating chamber 2, different test requirements can be met, thereby improving the reliability and accuracy of the test. The electrolyte concentration detection probe 5 is placed on the clamping device 102, and multiple electrolyte concentration detection probes 5 are placed at different positions of the clamping device 102. Therefore, placing multiple probes at different positions can enhance the real-time monitoring capability, and can timely discover the change trend to realize the monitoring of the electrolyte concentration, thereby achieving more accurate test results. In addition, after completing the detection of the soft-pack battery 9, the clamping device 102 and the electrolyte concentration detection probe 5 can be removed from the accommodating chamber 2 of the testing device 101, so as to facilitate the thorough cleaning of the clamping device 102 and the electrolyte concentration detection probe 5 to prevent residual electrolyte or other contaminants from interfering with the next test result, and effectively avoid cross contamination.

[0039] Further, the data processing device 1 is electrically connected to the electrolyte concentration detection probe 5, and the electrical connection method preferably adopts a conductive wire with good thermal insulation performance for line connection, and the data processing device 1 is located outside the testing device 101, and then the electrical signal of the electrolyte concentration detection probe 5 is transmitted to the data processing device 1 through the conductive wire. Further, a display device is provided in the data processing device 1. Through the built-in display device, the operator can conveniently view the detected electrolyte concentration data by displaying the corresponding image, and the data processing device 1 can receive the original data from the electrolyte concentration detection probe 5, and perform real-time data processing and analysis, so that multiple data are integrated into one device, which simplifies the structure and operation of the system, and the subjective factors of human observation can be reduced through the data processing device 1, ensuring the accuracy and consistency of the test result data of the sealing performance of the soft-pack battery packaging.

[0040] Reference Figure 1-Figure 4 The accommodating chamber 2 is provided with a support plate 3 for placing the clamping device 102 。

[0041] In the above embodiment, a support plate 3 for placing the clamping device 102 is provided in the receiving chamber 2, so that the support plate 3 divides the receiving chamber 2 into an upper and lower part. Preferably, the volume of the upper receiving chamber is larger than the volume of the lower receiving chamber, so that the large volume of the upper receiving chamber can carry more clamping devices 102 and the soft-pack battery 9 to be tested. ， At the same time, it also provides a more flexible operating space, can provide stable support for the clamping device 102, and is convenient for operators to perform experimental operations. In addition, the side frame of the test device 101 facing the operator is made of high-temperature resistant transparent material, so that the operator can clearly observe the status of the soft-pack battery 9 in the clamping device 102 during testing. On the other hand, it avoids direct contact between the clamping device 102 and the bottom of the accommodating chamber 4, reducing the possibility of contamination and mutual interference.

[0042] Reference Figure 1-Figure 4 The clamping device 102 includes a second fixing plate 8 in contact with the support plate 3 and a first fixing plate 7 corresponding to the second fixing plate 8 , and the first fixing plate 7 and the second fixing plate 8 are locked and fixed by bolts 25 .

[0043] In the above embodiment, the clamping device 102 includes a second fixing plate 8 in contact with the support plate 3 and a first fixing plate 7 corresponding to the second fixing plate 8, which is used to clamp the soft-pack battery 9, and the first fixing plate 7 and the second fixing plate 8 are made of materials with good thermal conductivity, such as aluminum plates, copper plates, and ceramic composite materials, so that heat can be effectively conducted and quickly dissipated to the surrounding environment, which helps to maintain the temperature of the fixing plate stable, avoid local temperatures being too high or too low, and ensure the uniformity of temperature at various positions, so that the temperature of the soft-pack battery 9 at each location between the first fixing plate 7 and the second fixing plate 8 is basically the same, thereby ensuring the accuracy of the test results, and the first fixing plate 7 and the second fixing plate 8 are two detachable separate components, so that when the soft-pack battery 9 is installed between the first fixing plate 7 and the second fixing plate 8, greater design flexibility and adjustability can be provided, which is convenient for the soft-pack battery 9 is placed as needed, which improves the efficiency of the detection and can also be applied to the sealing performance detection of soft-pack battery packages of different sizes. Further, the first fixing plate 7 and the second fixing plate 8 have the same size and are slightly larger than the size of the soft-pack battery 9, so that when the first fixing plate 7 and the second fixing plate 8 lock and fix the soft-pack battery 9 by bolts 25, the soft-pack battery 9 can be completely blocked by the first fixing plate 7 and the second fixing plate 8, thereby ensuring that more accurate data can be obtained when detecting the sealing performance of the soft-pack battery package, ensuring the accuracy of the measurement results. On the other hand, the soft-pack battery 9 between the first fixing plate 7 and the second fixing plate 8 is fixed by bolts 25, so that the soft-pack battery 9 can maintain a stable state, prevent the soft-pack battery from loosening or falling off, and reduce the occurrence of accidents. In addition, when the next soft-pack battery needs to be detected, it is also convenient to replace it at any time, which helps to improve work efficiency.

[0044] Reference Figure 1-Figure 4 In one embodiment, the first fixing plate 7 and the second fixing plate 8 lock and fix the soft-pack battery 9 by bolts 25, and the soft-pack battery 9 is provided with a pole ear 10 at one end perpendicular to the first fixing plate 7 and the second fixing plate 8 connected by the bolts 25.

[0045] In the above embodiment, the first fixing plate 7 and the second fixing plate 8 have the same size and are slightly larger than the size of the soft-pack battery 9, so that when the first fixing plate 7 and the second fixing plate 8 lock and fix the soft-pack battery 9 by the bolts 25, the soft-pack battery 9 can be completely blocked by the first fixing plate 7 and the second fixing plate 8, thereby ensuring that more accurate data can be obtained when detecting the sealing performance of the soft-pack battery package, ensuring the accuracy of the measurement results. On the other hand, the soft-pack battery 9 is fixed between the first fixing plate 7 and the second fixing plate 8 by the bolts 25, so that the soft-pack battery 9 can maintain a stable state, prevent the soft-pack battery from loosening or falling off, and reduce the occurrence of accidents. In addition, when the next soft-pack battery needs to be tested, it is also convenient to replace it at any time, which helps to improve work efficiency. Furthermore, a pole ear 10 is provided at one end of the soft-pack battery 9 perpendicular to the first fixing plate 7 and the second fixing plate 8 connected by bolts 25, so that a part of the pole ear 10 is not clamped by the first fixing plate 7 and the second fixing plate 8, which facilitates the connection of the pole ear 10 with other electronic devices or circuits more conveniently and reliably, and is conducive to the stable operation of the entire system. In addition, the exposed end of the pole ear 10 is perpendicular to the first fixing plate 7 and the second fixing plate 8 fixed by the bolts 25 and is not on the same side, so that the bolts 25 are not disturbed during the locking process, thereby ensuring the firmness of the locking process and facilitating the operation of the soft-pack battery during the packaging sealing performance test.

[0046] Reference Figure 1-Figure 4 In one embodiment, the electrolyte concentration detection probe 5 is arranged at the edge of the first fixing plate 7 .

[0047] In the above embodiment, by setting the electrolyte concentration detection probe 5 at the edge of the first fixed plate 7, the electrolyte in the soft-pack battery 9 will leak out from the edge of the first fixed plate 7 at the first time due to the temperature change of the soft-pack battery 9 in the accommodating chamber 2, so that the probe is set at the edge of the first fixed plate 7, and the electrolyte concentration near the edge of the clamping device 102 can be monitored, so that more comprehensive concentration data can be obtained. If the probe is installed in the central position, it will be affected by other factors such as the electrode, resulting in inaccurate readings. In addition, the pole ear 10 of the soft-pack battery 9 is kept as the head of the soft-pack battery 9, so that at least one electrolyte concentration detection probe 5 is placed on the head and the corresponding side of the soft-pack battery 9, respectively, to ensure that the electrolyte concentration detection probe 5 can realize multi-point detection of the electrolyte concentration of the soft-pack battery 9. Probes at different positions can provide more comprehensive measurement data, helping operators to understand the electrolyte concentration distribution inside the soft-pack battery in real time, and through multi-point detection, when the electrolyte concentration of the soft-pack battery 9 changes during the detection process, the impact of local abnormalities on the overall measurement results can be reduced. If only one electrolyte concentration detection probe 5 is placed, it may not be possible to capture the concentration changes at different positions inside the soft-pack battery, but placing multiple electrolyte concentration detection probes 5 can improve the accuracy of the measurement. Further, the electrolyte concentration detection probe 5 and the soft-pack battery 9 are separated by the first fixing plate 7, so that the electrolyte concentration detection probe 5 and the soft-pack battery 9 maintain a certain distance, which can reduce the contamination of the electrolyte concentration detection probe 5 caused by the soft-pack battery 9. In addition, the electrolyte concentration detection probe 5 is usually connected to other circuits or devices, so being away from the soft-pack battery 9 can reduce the impact of electrolyte leakage or other accidents on the soft-pack battery 9. In addition, when the soft-pack battery 9 is tested in the test device 101, the soft-pack battery 9 itself will generate a certain electric field, and there is a gap between the electrolyte concentration detection probe 5 and the soft-pack battery 9, which effectively avoids the interference of factors such as the electric field or magnetic field of the soft-pack battery 9 on the measurement results of the electrolyte concentration detection probe 5, thereby improving the accuracy of the measurement.

[0048] Reference Figure 1-Figure 4 In one embodiment, the detection device further includes a thermocouple 6 electrically connected to the data processing device 1 , and the thermocouple 6 is connected to the tab 10 of each of the soft-pack batteries 9 .

[0049] In the above embodiment, the detection device also includes a thermocouple 6 electrically connected to the data processing device 1, and each of the tabs 10 of the soft-pack battery 9 is provided with a thermocouple 6, and when the thermocouple 6 is connected to the tab 10, it is preferably spot welding to ensure that the connection is stable, the conductivity is good and it can withstand a high temperature environment, so that the positive and negative tabs 10 of the soft-pack battery 9 are respectively connected to the thermocouple 6 for detecting the temperature change of the soft-pack battery 9. When the soft-pack battery 9 begins to detect changes, by connecting the thermocouple 6 to the tab 10, the temperature change of the soft-pack battery 9 can be monitored in real time to ensure that the soft-pack battery 9 will not be damaged or cause fire or other dangerous situations due to excessive temperature, thereby ensuring the normal operation and detection safety of the soft-pack battery 9. In addition, by real-time monitoring of the temperature of the soft-pack battery 9 through the thermocouple 6, abnormal conditions can be discovered in time and fault diagnosis can be performed, so that the soft-pack battery 9 that needs to be detected can be replaced in time, thereby ensuring the accuracy of the sealing performance detection of the soft-pack battery package.

[0050] Reference Figure 1-Figure 4 In one embodiment, a protruding support platform 26 is formed on the inner wall of the accommodating chamber 2 of the testing device 101 , and the support plate 3 is disposed on the support platform 26 .

[0051] In the above embodiment, a raised support platform 26 is formed on the inner wall of the accommodating chamber 2 of the testing device 101, and the support plate 3 is movably placed on the support platform 26, so that when the support plate 3 is needed, the support plate 3 can be taken out at any time for corresponding use, and the support plate 3 is placed on the support platform 26 in a movable manner, so that when it is necessary to detect larger objects, the support plate 3 can be taken out, thereby improving space utilization and adapting to different types of detection objects. Furthermore, a stable support surface can be provided by the raised support platform 26. When the clamping device 102 is placed on the support plate 3, it can ensure that the clamping device 102 maintains a stable position during the detection process, thereby reducing errors or damage caused by vibration or external interference.

[0052] Reference Figure 1-Figure 4 In one embodiment, a through hole 4 is provided on the frame 27 of the testing device 101 , and the electrolyte concentration detection probe 5 and the conductive member 28 of the thermocouple 6 are connected to the data processing device 1 through the through hole 4 .

[0053] In the above embodiment, a through hole 4 is provided on the frame 27 of the test device 101, and it is preferably provided on the frame close to one end of the data processing device 1, so that the electrolyte concentration detection probe 5 and the conductive part 28 of the thermocouple 6 can be directly connected to the data processing device 1 after passing through the through hole 4. Furthermore, by providing a through hole 4 on the frame, a ventilation channel between the inside and outside of the test device 101 can be provided, which helps to promote air flow and heat dissipation, ensure that the pressure inside and outside the test device 101 is consistent, so that the data obtained by the clamping device 102 when performing detection in the test device 101 is more accurate. On the other hand, the through hole 4 can also be used for the management of the conductive part 28, so that the conductive part 28 inside the test device 101 can be wired and connected through the through hole 4, so as to better organize and protect the conductive part 28, avoid entanglement and disorder of the conductive part 28, and improve the reliability and safety of the equipment.

[0054] When testing the sealing performance of the soft-pack battery, first remove the sample soft-pack battery 9 to be tested for sealing performance after gas packaging, and keep the soft-pack battery 9 in a fully charged state, and use the first fixing plate 7 and the second fixing plate 8 to lock and fix the soft-pack battery 9 through the bolts 25; then perform TS test (TypeScript Testing): place the test soft-pack battery 9 into the accommodating chamber 2 of the test device 101, place an electrolyte concentration detection probe 5 on the first fixing plate 7 relative to the head and side of the soft-pack battery 9, respectively, connect a thermocouple 6 to each of the positive and negative ears 10 of the soft-pack battery 9, monitor the temperature of the soft-pack battery 9, increase the temperature of the test device 101 at a rate of 5°C / min, and maintain each temperature gradient for 1h until the soft-pack battery 9 leaks; then perform TSC test TSC test (TypeScript Compiler Testing): Place the test soft-pack battery 9 into the accommodating chamber 2 of the testing device 101, place an electrolyte concentration detection probe 5 on the first fixing plate 7 relative to the head and side of the soft-pack battery 9, respectively, connect a thermocouple 6 to the positive and negative ears 10 of the soft-pack battery 9, monitor the temperature of the soft-pack battery 9, quickly heat the ambient temperature to a fixed temperature, maintain it for 5 to 10 minutes, then cool it down to 25°C at the fastest rate, maintain it for 5 to 10 minutes, and repeat the above steps until the soft-pack battery 9 leaks or cycles 50 times; after the test is completed, take out the soft-pack battery 9 to check the appearance, analyze the test process data, and determine the number of cycles of the soft-pack battery 9 by the time when the electrolyte concentration changes sharply, so as to judge the sealing performance of the soft-pack battery 9.

[0055] Reference Figure 1-Figure 6In one embodiment, the testing device 101 also includes a power supply module 12, a switch module 13 and an environmental control module 14, the power supply module 12 is electrically connected to the switch module 14, the switch module 14 is electrically connected to the environmental control module 14, and the environmental control module 14 is electrically connected to the temperature change module 15.

[0056] In the above embodiment, the test device 101 also includes a power module 12, a switch module 13 and an environmental control module 14, wherein the power module 12, the switch module 13, the temperature variable module 15 and the environmental control module 14 are connected and operated by electrical connection. Further, the power module 12 is mainly used to provide the required power supply for each component and device in the test device 101, and the power module 12 can increase the power output of different voltages and powers according to the needs of the test device 101. In addition, the power module 12 usually has a stable current output and voltage regulation function to ensure the stability and accuracy of the power supply. Further, the power module 12 is electrically connected to the switch module 14, so that unified power supply and power-off control can be achieved for each component and device in the test device 101, ensuring that the test device 101 can work normally when needed, and can perform power saving control when not needed. Further, the switch module 14 is electrically connected to the environmental control module 14, and the environmental control module is connected to the temperature variable module. The environmental control module 14 is mainly a temperature control module for monitoring and To control the temperature in the detection environment, the heating component can be controlled according to the set value to maintain the ambient temperature within the set range. A humidity control module can also be added so that the test device 101 can set the required humidity when certain humidity requirements are required, thereby improving the accuracy of the packaging and sealing performance detection of the soft-pack battery. Further, the environmental control module 14 is electrically connected to the temperature variable module 15, wherein the safety protection module 16, the temperature variable module 15 and other modules are connected and operated by electrical connection, so that when the clamping device 102 needs to be detected in the test device 101, the temperature of the temperature variable module 15 is controlled by the environmental control module 14, wherein the temperature variable module 15 is preferably a heater, so that the temperature of the detection environment in the accommodating chamber 2 can be accurately controlled, and the temperature variable module 15 is adjusted according to the set value of the environmental control module 14 of the test device 101 to ensure the stability and accuracy of the detection temperature, and the preset temperature curve or temperature program required by the soft-pack battery can be used to automatically raise and lower the detection environment temperature, thereby improving the detection efficiency and accuracy.

[0057] Reference Figure 1-Figure 6 In one embodiment, the testing device 101 further includes a safety protection module 16 , and the power supply module 12 is electrically connected to the safety protection module 16 .

[0058] In the above embodiment, the test device 101 also includes a safety protection module 16, and the power supply module 12 is electrically connected to the safety protection module 16, which is used to ensure that the power supply can be cut off in time when an abnormal situation occurs in the electrical system to avoid equipment damage or personal injury. The safety protection module 16 can help protect the internal components of the test device 101 from electrical failures in overload protection, overvoltage protection, over-temperature protection, etc., thereby extending the service life of the equipment.

[0059] Furthermore, the electrolyte concentration detection probe 5 includes a sensor module 17 and a signal processing module 18. The sensor module 17 is mainly used to detect the concentration change of the electrolyte in the soft-pack battery 9, so that when the soft-pack battery 9 changes during the detection process, the sensor module 17 of the electrolyte concentration detection probe 5 can sense the concentration change of the electrolyte, and the sensor module 17 is in interval contact with the first fixed plate 7, so that the soft-pack battery 9 generates a certain amount of heat due to temperature changes. The interval contact can reduce the heat conduction to the sensor module 17, thereby protecting the sensor module 17 from the influence of excessive temperature and improving its stability and reliability. Further, since the signal collected by the sensor module 17 is often weak or unstable, the signal processing module 18 is electrically connected to the sensor module 17 to amplify, filter and stabilize the signal output by the sensor module, thereby improving the signal quality, enhancing the stability and accuracy of the signal, so as to carry out subsequent accurate measurement and analysis.

[0060] Furthermore, the electrolyte concentration detection probe 5 also includes a data acquisition module 19, which is used to collect the signal generated by the sensor module 17 and convert it into a digital form, and the signal processing module 18 is connected to the data acquisition module 19 through the conductive member 28 through the through hole 4, so as to facilitate subsequent analysis and processing. The signal is further transmitted directly to the data acquisition module 19 through the conductive member 28, which can reduce interference and attenuation in signal transmission, and help maintain high-quality data acquisition, thereby ensuring that the electrolyte concentration detection probe 5 can detect the sealing performance of the soft-pack battery package more accurately. Further, the data acquisition module 19 is electrically connected to the data processing device 1, so that the digital signal generated in the data acquisition module 19 is expressed in the form of a chart, which helps the operator to intuitively display the changing trends and laws of the data through the chart, ensuring that the operator can understand the meaning of the data at a glance, and can compare the data changes in different time periods through the chart, discover the correlation between the data, or the patterns and trends hidden in the data.

[0061] Furthermore, the thermocouple 6 includes a sensing module 21 and a compensation module 22. The sensing module 21 is mainly used to convert the sensed temperature into an electrical signal to facilitate subsequent digital processing, and the sensing module 21 is connected to the pole ear 10, so that the temperature measurement of the soft-pack battery 9 can be realized, ensuring that the sensing module 21 can accurately sense the temperature change of the soft-pack battery, thereby providing monitoring and control of the working state of the soft-pack battery 9, and can monitor the temperature changes of the soft-pack battery during the packaging and sealing performance detection process in real time. Further, the sensing module 21 is electrically connected to the compensation module 22 to eliminate errors occurring in the temperature measurement of the thermocouple 6. Therefore, by connecting the compensation module 22, the accuracy and stability of the temperature measurement can be improved, and reliable temperature data can be ensured.

[0062] Furthermore, the thermocouple 6 also includes a measuring module 23, which is used to collect the signal generated by the compensation module 22 and convert it into a digital form, and the compensation module 22 is connected to the measuring module 23 through the conductive member 28 through the through hole 4, so as to facilitate subsequent analysis and processing. The signal is further transmitted directly to the measuring module 23 through the conductive member 28, which can reduce interference and attenuation in signal transmission, and help maintain high-quality data acquisition, thereby ensuring that the thermocouple 6 is more accurate in detecting the sealing performance of the soft-pack battery package. Further, the measuring module 23 is electrically connected to the data processing module 1, so that the digital signal generated in the measuring module 23 is expressed in the form of a chart, which helps the operator to intuitively display the changing trends and laws of the data through the chart, ensuring that the operator can understand the meaning of the data at a glance, and can compare the data changes in different time periods through the chart, discover the correlation between the data, or the patterns and trends hidden in the data.

[0063] Reference Figure 1-Figure 4 In one embodiment, the support plate 3 is a grid-like structure, and a height between the support plate 3 and the bottom plate 103 of the test device 101 is smaller than a height between the through hole 4 and the bottom plate 103 of the test device 101 .

[0064] In the above embodiment, the support plate 3 placed on the support platform 26 is a grid structure, so that when the test device 101 performs temperature change detection on the clamping device 102, the use of the support plate 3 with a grid structure can make the temperature change at each location of the clamping device 102 more uniform, ensuring that the sealing performance of the detected soft-pack battery package is more accurate. Furthermore, the height between the support plate 3 and the bottom plate 103 of the test device 101 is smaller than the height between the through hole 4 and the bottom plate 103 of the test device 101, so that the space in the accommodating chamber 2 is fully utilized, and more space is left for the circuit of the conductive member 28, so that the conductive member 28 is convenient for connecting external components.

[0065] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rapid detection device for sealing performance of soft-pack battery packaging, characterized in that: It includes a testing device, a temperature-changing module, a clamping device, an electrolyte concentration detection probe and a data processing device; A containing chamber is formed in the testing device; The temperature-changing module is disposed in the testing device and is used to adjust the temperature in the containing chamber; The clamping device is placed in the accommodating chamber and is used to clamp the soft-pack battery under test; The electrolyte concentration detection probe is placed on the clamping device; The data processing device is electrically connected to the electrolyte concentration detection probe.

2. The device for rapid detection of sealing performance of soft-pack battery packaging according to claim 1, characterized in that: A support plate for placing the clamping device is provided in the accommodating chamber.

3. The device for rapid detection of sealing performance of soft-pack battery packaging according to claim 2, characterized in that: The clamping device includes a second fixing plate in contact with the support plate and a first fixing plate corresponding to the second fixing plate; the first fixing plate and the second fixing plate are locked and fixed by bolts.

4. The device for rapid detection of sealing performance of soft-pack battery packaging according to claim 3, characterized in that: The electrolyte concentration detection probe is arranged at the edge of the first fixing plate.

5. The device for rapid detection of sealing performance of soft-pack battery packaging according to claim 2, characterized in that: The detection device also includes a thermocouple electrically connected to the data processing device, and the thermocouple is connected to a tab of each of the soft-pack batteries.

6. The device for rapid detection of sealing performance of soft-pack battery packaging according to claim 2, characterized in that: A raised support platform is formed on the inner wall of the accommodating chamber of the testing device, and the support plate is arranged on the support platform.

7. The device for rapid detection of sealing performance of soft-pack battery packaging according to claim 5, characterized in that: A through hole is provided on the frame of the testing device, and the electrolyte concentration detection probe and the conductive member of the thermocouple are connected to the data processing device through the through hole.

8. The device for rapid detection of sealing performance of soft-pack battery packaging according to claim 1, characterized in that: The testing device further comprises a power supply module, a switch module and an environment control module. The power supply module is electrically connected to the switch module, the switch module is electrically connected to the environment control module, and the environment control module is electrically connected to the temperature variable module.

9. The device for rapid detection of sealing performance of soft-pack battery packaging according to claim 8, characterized in that: The testing device further comprises a safety protection module, and the power supply module is electrically connected to the safety protection module.

10. The device for rapid detection of sealing performance of soft-pack battery packaging according to claim 7, characterized in that: The support plate is a grid-like structure, and a height between the support plate and a bottom plate of the test device is smaller than a height between the through hole and the bottom plate of the test device.

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