Special chemical power supply magnetic field test device and method

Abstract

The invention discloses a special chemical power supply magnetic field test device and method in the technical field of chemical power supply testing, the device comprises a console, a power supply cabinet and a magnetic field generation device, the device adopts a split design, and the console, the power supply cabinet and the magnetic field generation device are separately arranged in different rooms to isolate magnetic field interference. A temperature monitoring module is arranged to monitor the state of the equipment in real time; the test method comprises the steps of magnetic field calibration, parameter setting, synchronous test and safety monitoring, and can simulate the influence of a complex magnetic field environment on the special chemical power supply. The device solves the problem that a high-voltage large-current battery cannot be tested in a dynamic magnetic field in the prior art, is suitable for power supply performance evaluation in the fields of aerospace, military equipment and the like, and has the advantages of various magnetic field waveforms, reliable interference isolation, accurate test data and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical power supply testing, in particular to a special chemical power supply magnetic field test device and method. BACKGROUND

[0002] Special chemical power supplies (such as zinc-silver batteries, thermal batteries, and lithium batteries) are widely used in aerospace, military, and other fields and need to work stably in complex magnetic field environments. However, there is a lack of special magnetic field test equipment for such power supplies in the prior art, which makes it impossible to simulate real magnetic field environments to test the key indicators such as charge-discharge performance and safety of the power supplies. The traditional magnetic field test device has the following problems: first, the type of magnetic field is single, and complex waveform magnetic fields cannot be generated; second, the magnetic field interference control is insufficient, which affects the accuracy of test data; and third, there is a lack of automatic data recording and temperature monitoring functions. Therefore, there is an urgent need for a test device and method that can accurately simulate complex magnetic field environments, isolate equipment interference, and monitor parameters in real time to meet the research and quality control needs of special chemical power supplies. SUMMARY

[0003] The present application aims to provide a special chemical power supply magnetic field test device and method to solve the problem of the lack of complex magnetic field environment test devices for special chemical power supplies (such as zinc-silver batteries, thermal batteries, etc.) in the prior art, especially to solve the technical problem of being unable to test the charge-discharge performance of high-voltage and large-current batteries under dynamic magnetic field conditions.

[0004] To solve the above technical problems, the present application provides the following technical solutions: a special chemical power supply magnetic field test device, comprising: a control console containing a display screen and a host computer, which is internally provided with a magnetic field triggering software for setting magnetic field waveforms and automatically recording experimental data; a power cabinet connected to the control console to provide power support for the magnetic field generating device; a magnetic field generating device containing two groups of customized copper coils and a non-metallic material placement table, the copper coils are powered by the power cabinet to generate a controllable magnetic field; the control console and the power cabinet are placed in different rooms from the magnetic field generating device to isolate magnetic field interference; further comprising a temperature monitoring module for real-time monitoring of the working temperature of the magnetic field generating device.

[0005] Further, the magnetic field triggering software can generate various waveforms such as square waves, triangular waves, and pulse waves.

[0006] Further, the non-metallic placement table is made of wood.

[0007] Further, the magnetic field generating device is equipped with a gauss meter interface for magnetic field calibration before testing.

[0008] Further, according to the test method of the special chemical power supply magnetic field device according to any one of the above, comprising the following steps: S1, before the magnetic field test starts, use the gauss meter to calibrate the magnetic field generated by the magnetic field test, and after calibration, carry out the test; S2, place the test sample on the placement table, connect the battery discharge circuit, confirm that the circuit is correct, start the magnetic field equipment, and select the magnetic field waveform; S3, after the magnetic field equipment starts to work, discharge the test sample, and verify the influence of different magnetic field environments on the battery; S4, real-time monitor the temperature of the magnetic field generating device, if the temperature exceeds the threshold, stop the test.

[0009] Further, the magnetic field waveform includes at least one of a static magnetic field, a square wave magnetic field, a triangular wave magnetic field and a pulse magnetic field.

[0010] The beneficial effects of the present application are: 1. The magnetic field triggering software can generate square wave, triangular wave, pulse wave and other dynamic waveforms, covering the common magnetic field interference scenarios in the fields of military and aerospace, meeting the performance evaluation needs of special chemical power supply under different magnetic field conditions; 2. The console, power cabinet and magnetic field generating device are placed in different rooms, connected through metal shielding cable, effectively isolating the interference of magnetic field on electronic equipment, and ensuring the accuracy of test data. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the special chemical power supply magnetic field test device.

[0012] The reference signs in the drawings of the specification include: power cabinet 1, first room 2, console 3, second room 4, magnetic field generating device 5, placement table 6. DETAILED DESCRIPTION

[0013] The following will be further described in detail through specific embodiments: The present embodiment is applied to the discharge performance test of zinc-silver battery in a pulse magnetic field environment, and the test conditions are: magnetic field intensity 500mT, pulse frequency 100Hz, duty cycle 50%, battery discharge current 50A, and duration 30 minutes.

[0014] A special chemical power supply magnetic field test device as shown in Figure 1 includes: Control console 3: 15-inch industrial-grade touch screen, built-in Windows operating system and customized magnetic field trigger software (version V2.1), software interface includes waveform selection (square wave / triangle wave / pulse wave), magnetic field intensity adjustment (0-1000mT), data recording (real-time display of voltage, current, magnetic field waveform) and other functional modules, host configuration Intel i7 processor, memory 16GB, storage capacity 512GB SSD.

[0015] Power cabinet 1: input voltage: AC 380V±10%, 50Hz; output power: 20kW, equipped with overload protection, short circuit protection module, output current ripple coefficient ≤1%; Magnetic field generating device 5: copper coil parameters: 800 turns per coil, diameter 500mm, wire cross-sectional area 25mm 2 , two groups of coils are arranged in parallel with a spacing of 200mm; wooden placement table 6 size: length x width x height = 600mm x 600mm x 50mm, material is epoxy impregnated wood; temperature sensor uses Pt100 type, accuracy ±0.5℃, threshold set to 60℃ (automatic power-off when overheating); Control console 3, power cabinet 1 are placed in the first room 2, magnetic field generating device 5 is placed in the second room 4, the first room 2 and the second room 4 are connected through metal shielding cable.

[0016] A test method of a special chemical power magnetic field device: S1, place the gauss meter probe at the center of the placement table 6, start the copper coil power supply, adjust the output current of the control console 3 to 100A, record the actual magnetic field intensity of 498mT, and after correction by the software compensation coefficient, reach 502mT; S2, fix the zinc-silver battery (nominal voltage 24V, capacity 100Ah) at the center of the placement table 6, and connect it to the discharge load box (resistance value 0.48Ω, power 3kW) using high-temperature resistant shielding cable; S3, select "pulse wave" mode in the control console 3 software, set parameters: intensity 500mT, frequency 100Hz, duty cycle 50%; start the magnetic field generating device and battery discharge simultaneously, the software records data in real time, the copper coil temperature is stable at 45℃ during the test, and the protection mechanism is not triggered; S4, record the data results: battery terminal voltage curve: initial voltage 24.5V, after 30 minutes, it drops to 23.1V, voltage fluctuation ≤0.3V, discharge capacity: 98.2Ah, capacity attenuation 1.8%.

[0017] In summary, the device can output complex magnetic field waveform stably, effectively simulate the actual application environment, and test data shows that the pulse magnetic field has a significant impact on battery capacity attenuation. The split design makes the console 3 device immune to magnetic field interference, and the temperature monitoring system ensures the safety of the test.

[0018] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme known in the art are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be considered as the protection scope of the present application, which will not affect the effect and practicality of the patent. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A special chemical power source magnetic field testing device, characterized in that, include: The control console, which includes a display screen and a main unit, contains magnetic field triggering software for setting magnetic field waveforms and automatically recording experimental data. A power cabinet, connected to the control console, provides power support for the magnetic field generating device; The magnetic field generating device includes two sets of customized copper coils and a non-metallic platform. The copper coils are powered by the power cabinet to generate a controllable magnetic field. The control console and power cabinet are placed in different rooms from the magnetic field generating device to isolate magnetic field interference. It also includes a temperature monitoring module for real-time monitoring of the operating temperature of the magnetic field generating device.

2. The special chemical power source magnetic field testing device according to claim 1, characterized in that: The magnetic field triggering software can generate various waveforms such as square waves, triangular waves, and pulse waves.

3. The special chemical power source magnetic field testing device according to claim 2, characterized in that: The non-metallic placement platform is made of wood.

4. The method for testing the magnetic field of a special chemical power source according to claim 3, characterized in that: The magnetic field generating device is equipped with a gaussmeter interface for magnetic field calibration before the experiment.

5. The test method for a special chemical power source magnetic field device according to any one of claims 1-4, characterized in that, Includes the following steps: S1. Before the magnetic field test begins, use a gaussmeter to calibrate the magnetic field generated by the test. After calibration, the test shall be carried out. S2. During the test, place the test sample on the placement platform, connect the battery discharge circuit, and after confirming that the circuit is correct, turn on the magnetic field device and select the magnetic field waveform. S3. After the magnetic field equipment starts working, the test sample is discharged to verify the effect of different magnetic field environments on the battery. S4. Monitor the temperature of the magnetic field generating device in real time. If the temperature exceeds the threshold, stop the test.

6. The method for testing the magnetic field of a special chemical power source according to claim 5, characterized in that: The magnetic field waveform includes at least one of static magnetic field, square wave magnetic field, triangular wave magnetic field and pulsed magnetic field.

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