Test device
By designing independent branches and charge/discharge controls in the test equipment, the problem of test interruption due to faulty channels was solved, achieving independent and efficient operation of single-cell testing.
Patent Information
- Application Number
- CN202423184298.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2034-12-23
AI Technical Summary
When existing testing equipment malfunctions in one testing channel, the entire testing process needs to be interrupted, affecting testing efficiency.
A testing device was designed to allow independent testing of each individual cell. The individual cells are connected via first and second branches set at intervals. The charging and discharging of the individual cells is controlled by a charge/discharge meter, and the electrolyte flow is managed by a controller and a pump to ensure that a faulty channel does not affect the testing of other channels.
This ensures that testing of other single pools is not interrupted when one test channel fails, thus improving testing efficiency.
Smart Images
Figure CN224005230U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, specifically to testing equipment. Background Technology
[0002] In related technologies, AEM (anion exchange membrane electrolysis) technology can be used to test battery performance. Testing equipment can typically test multiple individual cells (batteries without electrolyte) simultaneously. However, current testing equipment requires interrupting the entire testing process if a test channel malfunctions, severely impacting testing efficiency. Utility Model Content
[0003] The present invention provides a testing device that allows each individual pool to be tested independently. When one test channel fails, it will not affect other test channels, and the testing process can be interrupted, thus improving testing efficiency.
[0004] An embodiment of this utility model provides a testing device, comprising:
[0005] The test fixture is configured to hold a single pool, and the test fixture spacing is set to at least two;
[0006] A storage mechanism is configured to store electrolyte. The storage mechanism is connected to a first pipeline and a second pipeline. At least two first branches are spaced apart on the first pipeline. Each first branch is configured to connect to a first end of a single cell. At least two second branches are spaced apart on the second pipeline. Each second branch is configured to connect to a second end of a single cell, so that the storage mechanism, the first branches, the single cell, and the second branches form an electrolyte flow loop.
[0007] A charge / discharge device is configured to electrically connect to the single cell to drive the single cell to charge or discharge.
[0008] In one embodiment, the testing equipment further includes:
[0009] Controller;
[0010] Each of the first branches is equipped with a first pump body, and each of the first pump bodies is electrically connected to the controller.
[0011] In one embodiment, the storage mechanism is also connected to a replenishment pipe, which is equipped with a one-way valve and a second pump. The storage mechanism is provided with a liquid level sensor, and both the liquid level sensor and the second pump are electrically connected to the controller.
[0012] In one embodiment, the testing equipment further includes:
[0013] A temperature regulator is connected to the first pipeline and the second pipeline to form an electrolyte flow loop with the storage mechanism, the first pipeline, the temperature regulator, and the second pipeline. The temperature regulator is configured to regulate the temperature of the electrolyte.
[0014] In one embodiment, the temperature regulator includes:
[0015] A heat exchanger is connected to the first pipeline and the second pipeline so that the storage mechanism, the first pipeline, the heat exchanger, and the second pipeline form the electrolyte flow loop;
[0016] A heating mechanism, thermally connected to the heat exchanger, is used to regulate the temperature of the heat exchanger.
[0017] In one embodiment, the heat exchanger has a first chamber and a second chamber that are independent of each other. The first chamber and the second chamber are thermally connected. The first chamber is connected to the first pipeline and the second pipeline, so that the storage mechanism, the first pipeline, the first chamber, and the second pipeline form the electrolyte flow loop.
[0018] In one embodiment, the heating mechanism includes:
[0019] A storage tank is configured to store heat exchange fluid. The storage tank is connected to a third pipeline and a fourth pipeline. The second chamber is connected to the third pipeline and the fourth pipeline, so that the storage tank, the third pipeline, the second chamber, and the fourth pipeline form a heat exchange fluid flow loop.
[0020] A heater is disposed in the liquid storage tank and is configured to heat the heat exchange liquid.
[0021] In one embodiment, a first temperature sensor is provided on the first pipeline, and / or a second temperature sensor is provided on the second pipeline, and / or a third temperature sensor is provided on the third pipeline, and / or a fourth temperature sensor is provided on the fourth pipeline, and / or a fifth temperature sensor is provided in the storage mechanism;
[0022] The first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor, and the fifth temperature sensor are all electrically connected to the controller, and the controller is also electrically connected to the heater.
[0023] In one embodiment, the testing equipment further includes:
[0024] An alarm is electrically connected to the controller, which stores a temperature threshold. In response to a temperature parameter received by the controller exceeding the temperature threshold, the controller activates the alarm.
[0025] In one embodiment, the controller includes a signal transmitting unit that sends an alarm signal to a terminal in response to a temperature parameter received by the controller being greater than the temperature threshold.
[0026] In one embodiment, the storage mechanism is also connected to an exhaust pipe configured to connect to a gas detection device.
[0027] In one embodiment, the testing equipment further includes:
[0028] An industrial control computer is electrically connected to the gas detection device to acquire gas state parameters. The industrial control computer is also electrically connected to the single cell to acquire single cell operating parameters. The industrial control computer is also electrically connected to the controller to acquire electrolyte state parameters. The industrial control computer can generate a test report based on the gas state parameters, the single cell operating parameters, and the electrolyte state parameters.
[0029] The beneficial effects of the embodiments of this utility model are as follows:
[0030] In embodiments of this invention, the two ends of the single cell under test are connected to corresponding first and second branches, respectively, to allow electrolyte to flow into the cell. A charge / discharge device is used to control the charging or discharging of the single cell, enabling charging and discharging tests. The spacing between each first branch and each second branch ensures that the tests of each cell are relatively independent. If the test channel of one cell is blocked or damaged, it will not affect the testing of other cells. Therefore, if one test channel malfunctions, the testing process does not need to be interrupted, improving testing efficiency. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0032] Figure 1 This is one of the perspective schematic diagrams of the testing equipment provided in the embodiments of this utility model;
[0033] Figure 2 This is a second perspective view of the testing equipment provided in an embodiment of this utility model;
[0034] Figure 3 This is a pipeline connection block diagram of the testing equipment provided in an embodiment of this utility model;
[0035] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;
[0036] Figure 5 yes Figure 3 A magnified view of a section at point B in the middle;
[0037] Figure 6 This is a connection block diagram of a single cell, a charge / discharge device, a controller, and an industrial computer provided in an embodiment of this utility model.
[0038] Figure label:
[0039] 10-Test fixture, 20-Single pool, 30-Storage mechanism, 310-First pipeline, 3110-First branch, 3120-First pump body, 3130-Filter, 3140-Second drain outlet, 320-Second pipeline, 3210-Second branch, 330-Replenishment pipe, 3310-Check valve, 3320-Second pump body, 3330-Pure water inlet, 3340-Alkali inlet, 340-Level sensor, 350-First temperature sensor, 360-Second temperature sensor, 370-Fifth temperature sensor Sensor, 380-exhaust pipe, 390-first drain outlet, 40-charge and discharge device, 50-controller, 60-temperature regulator, 610-heat exchanger, 6110-first chamber, 6120-second chamber, 620-heating mechanism, 6210-liquid storage tank, 6220-third pipeline, 6230-fourth pipeline, 6240-heater, 630-third temperature sensor, 640-fourth temperature sensor, 650-water level sensor, 660-water supply and exhaust outlet, 670-drain outlet, 70-industrial control computer. Detailed Implementation
[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.
[0041] like Figures 1 to 6As shown, this application embodiment provides a testing device. The testing device includes a test fixture 10, a storage mechanism 30, and a charge / discharge device 40. The test fixture 10 is configured to hold a single cell 20. At least two test fixtures 10 are spaced apart. The storage mechanism 30 is configured to store electrolyte. The storage mechanism 30 is connected to a first conduit 310 and a second conduit 320. At least two first branches 3110 are spaced apart on the first conduit 310. Each first branch 3110 is configured to connect to a first end of a single cell 20. At least two second branches 3210 are spaced apart on the second conduit 320. Each second branch 3210 is configured to connect to a second end of a single cell 20, so that the storage mechanism 30, the first branch 3110, the single cell 20, and the second branch 3210 form an electrolyte flow loop. The charge / discharge device 40 is configured to be electrically connected to the single cell 20 to drive the single cell 20 to charge or discharge.
[0042] In this embodiment, the electrolyte can flow into the cell 20 by connecting the two opposite ends of the cell 20 to be tested to the corresponding first branch 3110 and second branch 3210. The charge / discharge device 40 controls the charging or discharging of the cell 20 to achieve charging and discharging tests. The intervals between each first branch 3110 and each second branch 3210 ensure that the tests of each cell 20 are relatively independent. If the test channel of one cell 20 is blocked or damaged, it will not affect the testing of other cells 20. Therefore, when one test channel malfunctions, the testing process does not need to be interrupted, improving testing efficiency.
[0043] Understandably, when a charging test is required for a single cell 20, the charge / discharge meter 40 switches to charging mode. With the flow of electrolyte within the single cell 20 and the action of the charge / discharge meter 40, the single cell 20 is charged. The testing equipment can acquire parameters of the charging process to generate charging test results corresponding to the single cell 20 signal. When a discharging test is required for a single cell 20, the charge / discharge meter 40 switches to discharging mode. With the flow of electrolyte within the single cell 20 and the action of the charge / discharge meter 40, the single cell 20 is discharged. The testing equipment can acquire parameters of the discharging process to generate discharging test results corresponding to the single cell 20 signal.
[0044] In this embodiment, the single cell 20 is a battery without added electrolyte. Before mass production of the individual cells, charge-discharge tests are performed on the corresponding single cells 20 to determine their performance.
[0045] like Figure 1As shown, the testing equipment may include a body. The body has a worktable. Multiple test fixtures 10 may be spaced apart on the worktable. For example, eight test fixtures 10 may be spaced apart on the worktable to form an eight-channel testing equipment. Alternatively, four, six, ten, or other different numbers of test fixtures 10 may be spaced apart on the worktable to form testing equipment with different numbers of channels.
[0046] An even number of test fixtures 10 can be spaced out on the worktable. Two adjacent test fixtures 10 can form a test unit. Each adjacent test unit can be separated by a partition.
[0047] The number of first conduits 310 and second conduits 320 is the same as the number of test fixtures 10. For example, when eight test fixtures 10 are spaced apart on the workbench, eight first branches 3110 will be provided on the first conduit 310, and eight second branches 3210 will be spaced apart on the second conduit 320. The first conduits 310 and second conduits 320 correspond to the test fixtures 10. That is, each end of a test fixture 10 corresponds to one first branch 3110 and one second branch 3210, respectively.
[0048] In some embodiments, the first pipe 310, the second pipe 320, the first branch 3110, and the second branch 3210 are all disposed within the body. Each first branch 3110 has a liquid outlet on the outer surface of the body, and each second branch 3210 has a liquid return port on the outer surface of the body. The opposite ends of the single tank 20 are respectively connected to the liquid outlet and the liquid return port, thereby realizing the flow of electrolyte.
[0049] like Figure 2 As shown, the first pipe 310 can be located below the second pipe 320, and the first branch 3110 is located below the second branch 3210, with the outlet located below the return port. This allows the electrolyte to flow in from the bottom and out from the top of the single cell 20. This bottom-in, top-out design ensures that the single cell 20 is completely filled with electrolyte, while also facilitating the escape of gases generated during battery charging and discharging from the top, preventing gas from obstructing electrolyte flow.
[0050] In some embodiments, at least two first branches 3110 may be integrally formed with the first conduit 310. Alternatively, each first branch 3110 may be connected to the first conduit 310 via a three-way valve. At least two second branches 3210 may be integrally formed with the second conduit 320. Alternatively, each second branch 3210 may be connected to the second conduit 320 via a three-way valve.
[0051] In some embodiments, the charge / discharge device 40 can be disposed within the body of the device. For example, the charge / discharge device 40 can be disposed within a storage space at the upper end of the body. The charge / discharge device 40 has a first connector and a second connector. Both the first connector and the second connector extend out of the storage space. The first connector and the second connector are used to connect to a single cell 20, thereby establishing an electrical connection between the charge / discharge device 40 and the single cell 20. The charge / discharge device 40 can be configured as a single device, which can have several pairs of first connectors and second connectors, and these pairs of first connectors and second connectors are independent of each other, so that if a test failure occurs in the single cell 20 corresponding to a pair of first connectors and second connectors, it will not affect the testing of other single cells 20. Alternatively, the number of charge / discharge devices 40 can correspond to the number of test fixtures 10, allowing each single cell 20 to be tested independently.
[0052] In some embodiments, the electrolyte stored in the storage mechanism 30 is an alkaline solution. For example, the storage mechanism 30 stores a potassium hydroxide solution. Of course, the electrolyte can be changed based on actual testing needs, and the embodiments of this application do not limit the type of electrolyte.
[0053] like Figure 3 and Figure 4 As shown, in some embodiments, the test equipment further includes a controller 50. Each first branch 3110 is provided with a first pump body 3120. Each first pump body 3120 is electrically connected to the controller 50.
[0054] Understandably, the controller 50 can control whether the first pump 3120 operates. The first pump 3120 provides power for the flow of electrolyte and also controls the on / off state of the first branch 3110. When a test channel corresponding to one of the single cells 20 malfunctions, the controller 50 sends a control signal to the first pump 3120 of the corresponding test channel to stop it from operating. At this time, the corresponding test channel is disconnected, and no more electrolyte will be injected into that single cell 20.
[0055] In this embodiment of the application, a first pump body 3120 is set in each first branch 3110, and the first pump body 3120 controls the on / off state of each first branch 3110. Depending on the number of single pools 20, some first branches 3110 can be turned on and some first branches 3110 can be turned off to adapt to different test requirements.
[0056] The first pump body 3120 can also adjust the flow rate and velocity of the electrolyte in the corresponding single cell 20 to obtain the performance of the single cell 20 under different flow rate and velocity conditions. The first pump body 3120 can be a circulating pump.
[0057] In some embodiments, the controller 50 is a PLC (Programmable Logic Controller 50).
[0058] In some embodiments, each of the first branch 3110 and each of the second branch 3210 may also be provided with a valve for controlling their respective on / off states.
[0059] like Figure 3 and Figure 4 As shown, in some embodiments, the storage mechanism 30 is also connected to a replenishment pipe 330. A one-way valve 3310 and a second pump body 3320 are constructed on the replenishment pipe 330. The storage mechanism 30 is equipped with a liquid level sensor 340. Both the liquid level sensor 340 and the second pump body 3320 are electrically connected to the controller 50.
[0060] Understandably, as the single cell 20 is charged and discharged, the electrolyte will be consumed to some extent, causing the electrolyte level in the storage mechanism 30 to drop. When the level sensor 340 detects that the electrolyte level in the storage mechanism 30 is lower than the preset level, the level sensor 340 sends a signal to the controller 50. At this time, the controller 50 drives the second pump 3320 to work, so as to replenish the electrolyte.
[0061] The one-way valve 3310 is used to realize the one-way flow of the replenishment pipe 330, so that the electrolyte can only flow in the direction from the second pump body 3320 to the storage mechanism 30, so as to prevent the electrolyte in the storage mechanism 30 from flowing back.
[0062] In some embodiments, the second pump body 3320 is a diaphragm pump.
[0063] The replenishment pipe 330 may have a pure water inlet 3330 and an alkaline solution inlet 3340. Understandably, when the potassium hydroxide in the electrolyte is not consumed, water is simply injected into the storage unit 30 through the pure water inlet 3330. When adding electrolyte to the storage unit 30 for the first time, an electrolyte of a preset concentration is injected into the storage unit 30 through the alkaline solution inlet 3340.
[0064] like Figure 3 and Figure 5 As shown, in some embodiments, the test apparatus further includes a temperature regulator 60. The temperature regulator 60 is connected to the first conduit 310 and the second conduit 320 to form an electrolyte flow loop with the storage mechanism 30, the first conduit 310, the temperature regulator 60, and the second conduit 320. The temperature regulator 60 is configured to regulate the temperature of the electrolyte.
[0065] It is understandable that by forming an electrolyte flow loop with the storage mechanism 30, the first pipeline 310, the temperature regulator 60, and the second pipeline 320, the temperature regulator 60 can be used to adjust the electrolyte temperature, thereby enabling charge-discharge testing of a single cell 20 under different electrolyte temperature conditions. Specifically, the electrolyte temperature can be adjusted to a set temperature using the temperature regulator 60 before conducting a charge-discharge test on the single cell 20 to ensure the stability of the electrolyte temperature.
[0066] For example, the electrolyte temperature can be adjusted to 10 degrees Celsius, 50 degrees Celsius, 70 degrees Celsius, etc., using the temperature regulator 60 to test the performance of a single cell 20 under the corresponding temperature conditions.
[0067] The temperature regulator 60 has a chamber for containing electrolyte. Both the first pipe 310 and the second pipe 320 are connected to this chamber, allowing the electrolyte to flow from the first pipe 310 into the temperature regulator 60. After temperature regulation within the temperature regulator 60, the electrolyte flows back into the storage mechanism 30 through the second pipe 320. Through repeated regulation over a certain period, the temperature of the electrolyte is stabilized at a preset temperature.
[0068] like Figure 5 As shown, in some embodiments, the temperature regulator 60 includes a heat exchanger 610 and a heating mechanism 620. The heat exchanger 610 is connected to the first pipeline 310 and the second pipeline 320, so that the storage mechanism 30, the first pipeline 310, the heat exchanger 610, and the second pipeline 320 form an electrolyte flow loop. The heating mechanism 620 is thermally connected to the heat exchanger 610 and is used to regulate the temperature of the heat exchanger 610.
[0069] It is understandable that by forming an electrolyte flow loop with the storage mechanism 30, the first pipeline 310, the heat exchanger 610, and the second pipeline 320, the temperature of the electrolyte can be adjusted using the heat exchanger 610. The heating mechanism 620 can heat the heat exchanger 610 to maintain it at a suitable temperature for heating the electrolyte. This allows for charge-discharge testing of a single cell 20 under different electrolyte temperature conditions.
[0070] Please continue reading. Figure 5 In some embodiments, the heat exchanger 610 has a first chamber 6110 and a second chamber 6120 that are independent of each other. The first chamber 6110 and the second chamber 6120 are thermally connected. The first chamber 6110 is connected to the first pipe 310 and the second pipe 320 so that the storage mechanism 30, the first pipe 310, the first chamber 6110, and the second pipe 320 form an electrolyte flow loop.
[0071] Understandably, the first chamber 6110 is used for the flow of electrolyte, and the second chamber 6120 is used for the flow of heat exchange fluid. Thus, based on the thermally conductive connection between the first chamber 6110 and the second chamber 6120, the temperature of the heat exchange fluid is transferred to the electrolyte, thereby achieving electrolyte temperature regulation.
[0072] Both the first chamber 6110 and the second chamber 6120 can be configured as serpentine pipes, with the two serpentine pipes fitting together. This allows the electrolyte to have a longer flow path within the first chamber 6110, increasing the heat exchange area between the electrolyte and the heat exchange fluid, and enabling rapid heating of the electrolyte.
[0073] In some embodiments, the heat exchanger 610 may be a plate heat exchanger 610.
[0074] Please continue reading. Figure 5 In some embodiments, the heating mechanism 620 includes a storage tank 6210 and a heater 6240. The storage tank 6210 is configured to store heat exchange fluid. The storage tank 6210 is connected to a third pipe 6220 and a fourth pipe 6230. A second chamber 6120 is connected to the third pipe 6220 and the fourth pipe 6230, so that the storage tank 6210, the third pipe 6220, the second chamber 6120, and the fourth pipe 6230 form a heat exchange fluid flow loop. The heater 6240 is disposed within the storage tank 6210. The heater 6240 is configured to heat the heat exchange fluid.
[0075] Understandably, the heat exchange fluid in the storage tank 6210 is heated using heater 6240. Once the heat exchange fluid reaches a certain temperature, it flows from the third pipe 6220 into the second chamber 6120. At this point, the heat exchange fluid in the second chamber 6120 can exchange heat with the electrolyte in the first chamber 6110, thus heating the electrolyte. After heat exchange, the heat exchange fluid can flow back into the storage tank 6210 through the fourth pipe 6230 and continue to be heated by heater 6240, completing one cycle of heating.
[0076] The heat exchange fluid can be tap water, purified water, etc. In this embodiment, by isolating the electrolyte and the heat exchange fluid, electrolyte contamination of the heat exchange fluid can be prevented, thereby preventing secondary contamination from alkaline flow and ensuring test accuracy.
[0077] like Figure 4 and Figure 5As shown, in some embodiments, a first temperature sensor 350 is provided on the first conduit 310. And / or, a second temperature sensor 360 is provided on the second conduit 320. And / or, a third temperature sensor 630 is provided on the third conduit 6220. And / or, a fourth temperature sensor 640 is provided on the fourth conduit 6230. And / or, a fifth temperature sensor 370 is provided within the storage mechanism 30. The first temperature sensor 350, the second temperature sensor 360, the third temperature sensor 630, the fourth temperature sensor 640, and the fifth temperature sensor 370 are all electrically connected to the controller 50. The controller 50 is also electrically connected to the heater 6240.
[0078] Understandably, the first temperature sensor 350 can acquire the temperature of the electrolyte in the first pipe 310. The second temperature sensor 360 can acquire the temperature of the electrolyte in the second pipe 320. The third temperature sensor 630 can acquire the temperature of the heat exchange fluid in the third pipe 6220. The fourth temperature sensor 640 can acquire the temperature of the heat exchange fluid in the fourth pipe 6230. The fifth temperature sensor 370 can acquire the temperature of the electrolyte in the storage mechanism 30. The first temperature sensor 350, the second temperature sensor 360, the third temperature sensor 630, the fourth temperature sensor 640, and the fifth temperature sensor 370 can upload their respective detected temperature parameters to the controller 50 to achieve real-time temperature monitoring.
[0079] In this embodiment, a first temperature sensor 350 is preferably installed on the first pipeline 310, a second temperature sensor 360 is installed on the second pipeline 320, a third temperature sensor 630 is installed on the third pipeline 6220, a fourth temperature sensor 640 is installed on the fourth pipeline 6230, and a fifth temperature sensor 370 is installed inside the storage mechanism 30. Thus, temperature detection at various locations is achieved through multi-point temperature detection.
[0080] Specifically, the first temperature sensor 350 can be installed in the first pipeline 310 near the heat exchanger 610. The second temperature sensor 360 can be installed in the second pipeline 320 near the heat exchanger 610. The third temperature sensor 630 can be installed in the third pipeline 6220 near the heat exchanger 610. The fourth temperature sensor 640 can be installed in the fourth pipeline 6230 near the storage tank 6210. The fifth temperature sensor 370 can be installed inside the storage mechanism 30 near the electrolyte outlet.
[0081] like Figure 1 and Figure 2As shown, the controller 50 may include a touch screen. The touch screen has several display windows that can display the temperature values detected by the first temperature sensor 350, the second temperature sensor 360, the third temperature sensor 630, the fourth temperature sensor 640, and the fifth temperature sensor 370, respectively, thereby displaying in real time the electrolyte temperature in the first pipeline 310, the electrolyte temperature in the second pipeline 320, the heat exchange fluid temperature in the third pipeline 6220, the heat exchange fluid temperature in the fourth pipeline 6230, and the electrolyte temperature in the storage mechanism 30.
[0082] During testing at different temperatures, the controller 50 sends a heating signal to the heater 6240 based on the set temperature to continuously increase the temperature of the heat exchange fluid. As the heat exchange fluid and electrolyte continuously exchange heat, the electrolyte reaches the preset temperature. At this point, the controller 50 sends a signal to the heater 6240 to either stop heating, maintain the current heating temperature, or lower the temperature of the heater 6240 and then continue heating the heat exchange fluid.
[0083] For example, when a single cell 20 needs to undergo charge-discharge testing in an electrolyte environment of 50 degrees Celsius, the heater can first be heated to 100 degrees Celsius to rapidly raise the temperature of the heat exchange fluid and transfer heat to the electrolyte. Once the first temperature sensor 350, the second temperature sensor 360, and the fifth temperature sensor 370 detect that the electrolyte temperature has reached 50 degrees Celsius, the heater can then continuously provide heat at 50 degrees Celsius.
[0084] In some embodiments, the test apparatus further includes an alarm. The alarm is electrically connected to the controller 50. The controller 50 stores a temperature threshold. In response to a temperature parameter received by the controller 50 exceeding the temperature threshold, the controller 50 activates the alarm.
[0085] Understandably, when the temperature parameter received by controller 50 exceeds the temperature threshold, it indicates a possibility of overheating in the detection device. In this case, controller 50 sends an alarm signal to the alarm device, causing it to sound an alarm.
[0086] The alarm can be a sound alarm, a sound and light alarm, etc., as long as it can serve as a reminder. The specific type of alarm is not limited in this application embodiment.
[0087] In some embodiments, the controller 50 includes a signal transmitting unit. In response to a temperature parameter received by the controller 50 exceeding a temperature threshold, the signal transmitting unit sends an alarm signal to the terminal.
[0088] Understandably, when the temperature parameter received by controller 50 exceeds the temperature threshold, it indicates a potential overheating of the detection equipment. In this case, the signal transmitting unit will send an alarm signal to the terminal, promptly alerting the testing personnel to the current overheating condition.
[0089] The signal transmitting unit can be a signal transmitter. The signal transmitter can send signals to the terminal via WiFi signals, Bluetooth signals, voltage signals, etc.
[0090] The terminal in this application embodiment may include hardware terminals such as computers, mobile phones, and iPads. It may also include software terminals such as battery management systems, WeChat, and QQ.
[0091] The alarm signal is sent to the terminal by the signal transmitting unit, thereby realizing remote monitoring. Therefore, the test equipment in this embodiment can achieve unattended single-pool 20 testing.
[0092] In some embodiments, only one temperature threshold may be set. When the temperature detected by any one of the first temperature sensor 350, the second temperature sensor 360, the third temperature sensor 630, the fourth temperature sensor 640, and the fifth temperature sensor 370 exceeds the temperature threshold, the controller 50 will trigger the alarm and drive the signal transmitting unit to send an alarm signal to the terminal.
[0093] In some embodiments, five temperature thresholds can be set, namely a first temperature threshold, a second temperature threshold, a third temperature threshold, a fourth temperature threshold, and a fifth temperature threshold. When the first temperature sensor 350 detects that the temperature of the electrolyte in the first pipe 310 is higher than the first temperature threshold, the controller 50 will activate the alarm and send an alarm signal to the terminal via the signal sending unit. When the second temperature sensor 360 detects that the temperature of the electrolyte in the second pipe 320 is higher than the second temperature threshold, the controller 50 will activate the alarm and send an alarm signal to the terminal via the signal sending unit. When the third temperature sensor 630 detects that the temperature of the heat exchange fluid in the third pipe 6220 is higher than the third temperature threshold, the controller 50 will activate the alarm and send an alarm signal to the terminal via the signal sending unit. When the fourth temperature sensor 640 detects that the temperature of the heat exchange fluid in the fourth pipe 6230 is higher than the fourth temperature threshold, the controller 50 will activate the alarm and send an alarm signal to the terminal via the signal sending unit. When the fifth temperature sensor 370 detects that the temperature of the electrolyte in the storage mechanism 30 is higher than the fifth temperature threshold, the controller 50 will activate the alarm and send an alarm signal to the terminal via the signal sending unit.
[0094] like Figure 4As shown, in some embodiments, the storage mechanism 30 is also connected to an exhaust pipe 380. The exhaust pipe 380 is configured to connect to a gas detection device.
[0095] Understandably, as the single cell 20 undergoes continuous charge-discharge tests, the electrolyte will produce hydrogen and oxygen. The generated gases will flow back into the storage unit 30 through the second pipe 320 and be discharged through the exhaust pipe 380. The gases discharged through the exhaust pipe 380 can be detected by a gas detection device. For example, the concentration of the generated hydrogen can be detected by the gas detection device, and the performance of the single cell 20 can be reflected based on parameters such as the concentration of hydrogen generated per unit time. For example, the stronger the hydrogen production capacity of the single cell 20, the better its performance.
[0096] The exhaust pipe 380 can be divided into two lines to deliver hydrogen and oxygen to corresponding gas detection devices for separate detection. For example, the exhaust pipe 380 can be connected to a gas separation device to separate the hydrogen and oxygen. The gas separation device has two output lines: one output line delivers hydrogen to a hydrogen detection device, and the other output line delivers oxygen to an oxygen detection device.
[0097] like Figure 6 As shown, in some embodiments, the testing equipment further includes an industrial computer 70. The industrial computer 70 is electrically connected to a gas detection device for acquiring gas state parameters. The industrial computer 70 is also electrically connected to a single cell 20 for acquiring the operating parameters of the single cell 20. The industrial computer 70 is also electrically connected to a controller 50 for acquiring electrolyte state parameters. The industrial computer 70 can generate a test report based on the gas state parameters, the operating parameters of the single cell 20, and the electrolyte state parameters.
[0098] Understandably, the industrial computer 70 can collect data, gathering all gas state parameters, single-cell 20 operating parameters, and electrolyte state parameters. The industrial computer 70 can then output test reports based on these parameters for easy review of test results. For example, the test report might be a graph showing the gas state parameters, single-cell 20 operating parameters, and electrolyte state parameters against the test time.
[0099] The industrial computer 70 can also send the test report to the terminal through the controller 50, so that it can be stored and viewed and retrieved in real time on the terminal.
[0100] In some embodiments, the industrial computer 70 integrates an I / V testing system. The industrial computer 70 collects data, processes it, generates reports, and stores them on a terminal.
[0101] In some embodiments, gas state parameters include oxygen concentration parameters, hydrogen concentration parameters, gas pressure parameters, etc. Single-cell 20 operating parameters include voltage and current parameters corresponding to the charging state and voltage and current parameters corresponding to the discharging state, etc. Electrolyte state parameters include electrolyte temperature parameters, flow rate parameters, flow velocity parameters, etc.
[0102] In some embodiments, the storage mechanism 30 can be configured as an alkali tank. A first drain port 390 can be provided at the bottom of the storage mechanism 30 for wastewater discharge. It is understood that after cleaning the alkali tank, the cleaned wastewater can be discharged from the first drain port 390, achieving unified collection and treatment of wastewater.
[0103] In some embodiments, a circulation pump may be installed on the first pipeline 310 near the storage mechanism 30 to power the delivery of the electrolyte. A filter 3130 may also be installed on the first pipeline 310 near the heat exchanger 610 to filter impurities in the electrolyte and ensure its purity. A second drain port 3140 may also be provided on the first pipeline 310 to discharge impurities from the filter 3130. Alternatively, wastewater may be discharged from the pipeline during cleaning.
[0104] In some embodiments, a water level sensor 650 is provided inside the storage tank 6210 to detect the liquid level of the heat exchange fluid inside the storage tank. A water replenishment and venting port 660 is provided at the upper end of the storage tank 6210. When the water level sensor 650 detects that the heat exchange fluid in the storage tank is lower than a preset level, heat exchange fluid is replenished into the storage tank 6210 through the water replenishment and venting port 660.
[0105] In some embodiments, a circulation pump may also be installed on the third pipeline 6220 near the storage tank 6210 to provide power for the transport of the heat exchange fluid. A drain outlet 670 may also be constructed on the third pipeline 6220 to discharge the heat exchange fluid.
[0106] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A test apparatus, characterized by, The test device comprises: a test fixture configured to clamp single cells, the test fixture being arranged in at least two groups; a storage mechanism configured to store electrolyte, the storage mechanism being in communication with a first pipeline and a second pipeline, the first pipeline being arranged with at least two first branches, each of the first branches being configured to communicate with a first end of one of the single cells, the second pipeline being arranged with at least two second branches, each of the second branches being configured to communicate with a second end of one of the single cells, so that the storage mechanism, the first branches, the single cells and the second branches form an electrolyte circulation loop; a charge-discharge instrument configured to electrically connect the single cells to drive the single cells to charge or discharge.
2. The test apparatus of claim 1, wherein, The test device further comprises: a controller; each of the first branches is provided with a first pump body, and each of the first pump bodies is electrically connected to the controller.
3. The test apparatus of claim 2, wherein, The storage mechanism is further in communication with a liquid supplement pipeline, the liquid supplement pipeline is arranged with a one-way valve and a second pump body, the storage mechanism is provided with a liquid level sensor, and the liquid level sensor and the second pump body are electrically connected to the controller.
4. The test apparatus of claim 2, wherein, The test device further comprises: a temperature regulator in communication with the first pipeline and the second pipeline, so that the storage mechanism, the first pipeline, the temperature regulator, the second pipeline form an electrolyte circulation loop, and the temperature regulator is configured to adjust the temperature of the electrolyte.
5. The test apparatus of claim 4, wherein, The temperature regulator comprises: a heat exchanger in communication with the first pipeline and the second pipeline, so that the storage mechanism, the first pipeline, the heat exchanger, the second pipeline form the electrolyte circulation loop; a heating mechanism in heat-conducting connection with the heat exchanger, for adjusting the temperature of the heat exchanger.
6. The test apparatus of claim 5, wherein, The heat exchanger has a first chamber and a second chamber which are independent of each other, the first chamber is in heat-conducting connection with the second chamber, the first chamber is in communication with the first pipeline and the second pipeline, so that the storage mechanism, the first pipeline, the first chamber, the second pipeline form the electrolyte circulation loop.
7. The test apparatus of claim 6, wherein, The heating mechanism comprises: a liquid storage tank configured to store heat exchange liquid, the liquid storage tank being in communication with a third pipeline and a fourth pipeline, the second chamber being in communication with the third pipeline and the fourth pipeline, so that the liquid storage tank, the third pipeline, the second chamber, the fourth pipeline form a heat exchange liquid circulation loop; a heater arranged in the liquid storage tank, the heater being configured to heat the heat exchange liquid.
8. The test apparatus of claim 7, wherein, The first pipeline is provided with a first temperature sensor, and / or the second pipeline is provided with a second temperature sensor, and / or the third pipeline is provided with a third temperature sensor, and / or the fourth pipeline is provided with a fourth temperature sensor, and / or the storage mechanism is provided with a fifth temperature sensor; wherein the first temperature sensor, the second temperature sensor, the third temperature sensor, the fourth temperature sensor and the fifth temperature sensor are electrically connected to the controller, and the controller is also electrically connected to the heater.
9. The test apparatus of claim 8, wherein, The test device further comprises: An alarm is electrically connected to the controller, and a temperature threshold is stored in the controller. In response to the temperature parameter received by the controller being greater than the temperature threshold, the controller drives the alarm to alarm.
10. The test apparatus of claim 9, wherein, The controller comprises a signal sending unit. In response to the temperature parameter received by the controller being greater than the temperature threshold, the signal sending unit sends an alarm signal to a terminal.
11. The test apparatus according to any one of claims 2 to 10, characterized in that, The storage mechanism is also connected to an exhaust pipe configured to connect a gas detection device.
12. The test apparatus of claim 11, wherein, The test device further comprises: An industrial computer is electrically connected to the gas detection device to obtain a gas state parameter. The industrial computer is also electrically connected to the single cell to obtain a single cell working parameter. The industrial computer is also electrically connected to the controller to obtain an electrolyte state parameter. The industrial computer can generate a test report based on the gas state parameter, the single cell working parameter and the electrolyte state parameter.