New energy battery aging test system capable of simulating temperature and humidity

Abstract

The invention relates to the technical field of battery detection, and discloses a new energy battery aging test system capable of simulating temperature and humidity, which comprises a vacuum sealing test box chamber, a main control unit, a temperature control system, a humidity control system, a power supply management module, a battery tray and a vibration module, the main control unit, the temperature control system, the humidity control system, the power management module, the battery tray and the vibration module are all arranged in the vacuum sealing test box chamber. According to the new energy battery aging test system capable of simulating temperature and humidity, data comprehensiveness of new energy battery aging test is realized through the temperature control system, the humidity control system and the vibration module, the accuracy and stability of various parameters are ensured, the influence of personal errors is reduced, the comprehensiveness of battery aging test data is improved, and the test efficiency is improved. And a test environment is closer to an actual use scene, so that the performance and the service life of the battery in real use can be evaluated more accurately.

Description

Technical Field

[0001] The present invention relates to the technical field of battery detection, and in particular to a new energy battery aging test system capable of simulating temperature and humidity. Background Art

[0002] New energy battery aging test system is a device used to evaluate the performance changes of batteries during long-term use. This system usually includes temperature control system, humidity control system, data acquisition module, power management module and other parts, which can simulate various conditions of batteries in actual use environment, such as temperature, humidity, charge and discharge cycle, etc., to accelerate the aging process of batteries, so as to understand the performance change law of batteries more quickly.

[0003] Common new energy battery aging test systems include temperature box testers and humidity chamber testers. The temperature box tester simulates different thermal environments by adjusting the temperature. The advantage of this equipment is that it can achieve more precise temperature control, and the disadvantage is that it cannot adjust the humidity at the same time. The humidity chamber tester is used to simulate the performance changes of batteries in high humidity environments, usually using spray humidification. Its advantage is that it can provide a stable humidity environment, but its disadvantage is that it is difficult to adjust synchronously with other environmental factors, and its scope of application is limited. The comprehensive environmental test chamber integrates multiple environmental factors such as temperature and humidity, and can adjust multiple parameters within a certain range. The advantage of this type of equipment is that it can be closer to the real application scenario, but it is poor in accuracy and stability, and cannot simulate the vibration phenomenon that the battery is subjected to during use, resulting in incomplete data on battery aging tests and cannot meet the working requirements of battery detection. Therefore, a new energy battery aging test system that can simulate temperature and humidity is proposed. Summary of the invention 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides a new energy battery aging test system that can simulate temperature and humidity to solve the technical problems that the functions of a single device are relatively single, cannot fully cover the complex and changeable actual usage conditions, and the test data obtained is incomplete.

[0004] (II) Technical solution To achieve the above-mentioned purpose, the present invention provides the following technical solution: a temperature and humidity simulating new energy battery aging test system, comprising: A vacuum sealed test chamber, a main control unit, a temperature control system, a humidity control system, a power management module, a battery tray and a vibration module. The main control unit, the temperature control system, the humidity control system, the power management module, the battery tray and the vibration module are all installed inside the vacuum sealed test chamber. The main control unit includes a data acquisition module, a microcontroller, a storage chip and a clock chip. The temperature control system includes a temperature sensor, a nickel-chromium alloy heating wire, a semiconductor cooling sheet and a temperature controller. The humidity control system includes a humidity sensor, a humidifier, a dehumidifier and a humidity controller. The power management module includes a power supply, a power conversion circuit and a power protection circuit. A battery limit clamp is installed on the top of the battery tray.

[0005] Main control unit: The data acquisition module includes a data acquisition card and a signal conditioning circuit. The data acquisition card is used to collect analog signals such as temperature sensors, humidity sensors, battery voltage, current, and digital signals of equipment such as battery management systems. The signal conditioning circuit is used to amplify, filter, and process the collected signals to improve the quality of the signals. The data acquisition card is installed in an expansion slot in the main control unit, and the signal conditioning circuit is installed on a circuit board of the data acquisition card. After passing through the signal conditioning circuit, the temperature sensor and humidity sensor are connected to the analog input channel of the data acquisition card. The microcontroller is responsible for coordinating the work of the temperature control system, humidity control system, data acquisition module, and power management module. The storage chip is used to store the configuration parameters of the system. The clock chip provides an accurate time reference for the system to time-mark the test process. The microcontroller, clock chip, and storage chip are connected via a communication interface.

[0006] Temperature control system: The temperature sensor is used to measure the temperature of the test environment and convert the temperature signal into an electrical signal. The nickel-chromium alloy heating wire is used to increase the temperature inside the vacuum-sealed test chamber, and the semiconductor cooling sheet is used to reduce the temperature inside the vacuum-sealed test chamber. The temperature controller calculates a control signal through a PID algorithm based on the difference between the temperature signal fed back by the temperature sensor and the set value to adjust the power of the nickel-chromium alloy heating wire or the semiconductor cooling sheet. The temperature sensor is connected to the analog input interface of the temperature controller through a signal line to transmit the measured temperature signal to the temperature controller. The output interface of the temperature controller is connected to the nickel-chromium alloy heating wire and the semiconductor cooling sheet through a relay.

[0007] Humidity control system: The humidity sensor is used to measure the ambient humidity and convert the humidity signal into an electrical signal. The humidifier is used to increase the humidity inside the vacuum-sealed test chamber, and the dehumidifier is used to reduce the humidity inside the vacuum-sealed test chamber. The humidity controller can calculate the control signal to adjust the operation of the humidifier and the dehumidifier based on the difference between the humidity signal fed back by the humidity sensor and the set value. The humidity sensor is connected to the analog input interface of the humidity controller through a signal line, and the output interface of the humidity controller is connected to the humidifier and the dehumidifier through a relay.

[0008] Power management module: The power supply provides power support for the entire test system. The power conversion circuit is used to convert AC power into DC power, or to perform voltage conversion on DC power to meet the voltage requirements of different devices. The power protection circuit is used to protect the equipment in the system from damage caused by power anomalies. The power supply is connected to the distribution box of the test system through a power cord. The power conversion circuit and the power protection circuit are installed in the distribution box. The output of the power after conversion is connected to the interface of the main control unit, temperature control system, humidity control system and vibration module through a power cord.

[0009] Vibration module: The vibration module includes a vibration motor, which is installed at the bottom of the inner cavity of the vacuum-sealed test chamber. The battery tray is installed at the outer end of the output shaft of the vibration motor. During the test, the vibration motor can drive the battery tray to vibrate, thereby simulating the use of the battery.

[0010] (III) Beneficial effects Compared with the prior art, the present invention provides a new energy battery aging test system that can simulate temperature and humidity, and has the following beneficial effects: 1. The temperature and humidity simulated new energy battery aging test system can simulate different temperature environments for aging tests through the added temperature control system, and can fully understand the performance change law of the battery under various temperature conditions, for example, determine the upper limit of the safe working temperature of the battery in a high temperature environment, and the lower limit of the available capacity in a low temperature environment, etc. The added humidity control system can simulate different humidity environments, so as to deeply study the influence of humidity on battery performance, which is helpful to improve the sealing design and material selection of the battery, and improve the environmental adaptability of the battery, so as to more comprehensively simulate the actual use conditions, improve the authenticity and accuracy of the test results, and ensure the accuracy and stability of various parameters through multiple sets of sensing technology and automatic control strategies, reduce the influence of human errors, and improve the comprehensiveness of battery aging test data; 2. The temperature and humidity simulated new energy battery aging test system can simulate the vibration environment through the added vibration module, which can more accurately evaluate the performance and life of the battery in actual use. The vibration can accelerate the wear of the internal materials of the battery and the change of the structure, thereby accelerating the aging process of the battery, which is helpful to evaluate the long-term performance of the battery in a shorter time. At the same time, through the vibration test, the performance data of the battery under different environmental conditions can be obtained in a shorter time, which improves the test efficiency. The vibration test can help evaluate the safety of the battery in a vibration environment, such as the sealing of the battery, the stability of the internal connection, etc., to ensure the safety of the battery in actual use and improve the diversity of the battery aging test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a system structure block diagram of the present invention; Figure 2 It is a structural block diagram of the temperature control system of the present invention; Figure 3 It is a structural block diagram of the humidity control system of the present invention. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] The present invention provides a technical solution, a new energy battery aging test system capable of simulating temperature and humidity: See also Figure 1 The main control unit, temperature control system, humidity control system, power management module, battery tray and vibration module are all installed inside the vacuum sealed test chamber. The main control unit includes a data acquisition module, a microcontroller, a storage chip and a clock chip. Please refer to Figure 2 The temperature control system includes a temperature sensor, a nickel-chromium alloy heating wire, a semiconductor cooling sheet and a temperature controller. Figure 3 , humidity control system includes humidity sensor, humidifier, dehumidifier and humidity controller, please refer to Figure 1The power management module includes a power supply, a power conversion circuit and a power protection circuit. The vibration module includes a vibration motor. The vibration motor is installed at the bottom of the inner cavity of the vacuum sealed test chamber. The vibration motor adopts the YZU series, which is mainly composed of an electromagnetic coil, a stator, a rotor, a bearing, a guide bracket, etc. Among them, the electromagnetic coil is the core component, the stator and the rotor are the transmission mechanism, and the bearing and the guide bracket play a supporting and guiding role. The working principle is that when an external alternating voltage acts on the electromagnetic coil, the current causes a magnetic flux to be formed inside the coil, which then interacts with the fixed magnetic field to form a torque, driving the stator and the rotor to vibrate, and the vibration The vibration frequency and amplitude of the motor can be controlled by adjusting the power supply voltage, current and frequency, so that the vibration conditions under different usage conditions can be simulated when the battery is tested. The battery tray is installed at the outer end of the output shaft of the vibration motor, and a battery limit clamp is installed on the top of the battery tray. The microcontroller adopts an ARM architecture microcontroller, such as the STM32 series, or an industrial control computer with powerful computing power and multiple interfaces, such as Advantech's IPC-610 series. The storage chip adopts the AT24C series EEPROM chip, which can easily communicate with the microcontroller via I2C to store and read data.

[0014] The data acquisition module includes a data acquisition card and a signal conditioning circuit. The data acquisition card can adopt Advantech's PCI-1710 data acquisition card, which has multiple analog input channels and digital input and output channels. The data acquisition card is used to collect analog signals such as temperature sensors, humidity sensors, battery voltage, current, and digital signals of equipment such as battery management systems. The signal conditioning circuit is used to amplify, filter, and process the collected signals to improve the quality of the signals. The data acquisition card is installed in an expansion slot in the main control unit, and the signal conditioning circuit is installed on a circuit board of the data acquisition card. After the temperature sensor and the humidity sensor pass through the signal conditioning circuit, they are connected to the analog input channel of the data acquisition card. The microcontroller is responsible for coordinating the work of the temperature control system, the humidity control system, the data acquisition module, and the power management module. The storage chip is used to store the configuration parameters of the system. The clock chip provides the system with an accurate time reference so as to time-mark the test process. The microcontroller, the clock chip, and the storage chip are connected through a communication interface. The software of the main control unit can read the configuration parameters of the system from the storage chip and load these parameters into the memory when the system starts. The user can modify these parameters through the software interface, and the software writes the new parameter values ​​into the storage chip for storage. The software of the main control unit sends control instructions to the temperature control system and humidity control system through the communication interface according to the test process and user settings, such as setting the target temperature and humidity values. At the same time, the software receives data from the data acquisition module through the corresponding interface and performs preliminary processing and analysis on the data. For example, the software can determine whether the working state of the temperature control system needs to be adjusted based on the received battery temperature data.

[0015] The temperature sensor is used to measure the temperature of the test environment and convert the temperature signal into an electrical signal. The temperature sensor uses a PT100 thermal resistor sensor. Its main internal components include a platinum metal coil, an insulating bushing and a shell. The working principle of the temperature sensor using the PT100 thermal resistor sensor is based on the characteristic that the resistance of the metal changes with temperature. When the temperature rises, the thermal motion of the metal atoms is enhanced, the probability of electron scattering increases, and the metal resistance also increases; when the temperature decreases, the metal resistance decreases. By measuring the change in the resistance value of the PT100 thermal resistor, the corresponding temperature information can be obtained. The nickel-chromium alloy heating wire is used to increase the temperature inside the vacuum-sealed test chamber, and the semiconductor cooling plate is used to reduce the temperature inside the vacuum-sealed test chamber. Its model is TEC1-12706. The temperature controller calculates the control signal through the PID algorithm based on the difference between the temperature signal fed back by the temperature sensor and the set value. The PID control algorithm based on the microcontroller is used, or a dedicated PID controller chip, such as the ST100 series, is used to adjust the power of the nickel-chromium alloy heating wire or the semiconductor cooling plate. The temperature sensor is connected to the analog input interface of the temperature controller through a signal line to transmit the measured temperature signal to the analog input interface of the temperature controller. The temperature controller is connected to the output interface of the temperature controller through a relay with the nickel-chromium alloy heating wire and the semiconductor refrigeration sheet. The software of the temperature control system receives the set temperature value from the main control unit and uses it as the target temperature. At the same time, the software feeds back the actual temperature data collected by the temperature sensor to the main control unit, and adjusts the working state of the heating or cooling element according to the control signal calculated by the PID algorithm to keep the temperature stable near the set value. The humidity sensor is used to measure the ambient humidity. The model HIH-4000-001 capacitive humidity sensor is used. Its working principle is based on the change of capacitance. When the ambient humidity changes, the capacitance value of the thermosetting polymer capacitance sensing element inside the sensor will change accordingly. This change is due to the polarization characteristics of water molecules, which changes the dielectric constant of the polymer, thereby affecting the capacitance value.The chip-integrated signal conditioning function of the sensor converts the change of the capacitance value into a voltage output, so that the controller or other devices can directly read and process the data, and convert the humidity signal into an electrical signal. The humidifier is used to increase the humidity inside the vacuum-sealed test chamber. The humidifier uses an ultrasonic humidifier with model SCK-1LA80W. Its working principle is to use a high-frequency oscillator to convert electrical energy into high-frequency vibrations to generate ultrasonic waves. Ultrasonic waves will produce fine water mist when they are transmitted in water. These water mists are blown out by the fan into the air inside the vacuum-sealed test chamber, rapidly increasing the air humidity. Ultrasonic humidifiers can usually provide rapid and uniform humidification for the indoor environment, while having low noise and low energy consumption. The dehumidifier is used to reduce the humidity inside the vacuum-sealed test chamber. Its model is DM-CS13BFA5A. The humidity controller can calculate the control signal to adjust the operation of the humidifier and dehumidifier based on the difference between the humidity signal fed back by the humidity sensor and the set value. The humidity sensor is connected to the analog input interface of the humidity controller through a signal line. The output interface of the humidity controller is connected to the humidifier and dehumidifier through a relay. The software of the humidity control system receives the set humidity value from the main control unit, and feeds back the actual humidity data collected by the humidity sensor to the main control unit. According to the control signal calculated by the humidity controller, the software controls the operation of the humidifier and dehumidifier to stabilize the humidity near the set value. The power supply provides power support for the entire test system. The power conversion circuit is used to convert AC power into DC power, or to convert the voltage of DC power to meet the voltage requirements of different devices. The power protection circuit is used to protect the equipment in the system from damage caused by power abnormalities. The power supply is connected to the distribution box of the test system through a power cord. The power conversion circuit and the power protection circuit are installed in the distribution box. The output of the power after conversion is connected to the interface of the main control unit, the temperature control system, the humidity control system and the vibration module through the power cord, and the software of the power management module can interact with the main control unit to feed back the power status (such as whether the voltage is normal, whether there is overcurrent, etc.) to the main control unit.

[0016] This solution achieves comprehensive optimization of battery aging test through a series of precise designs and advanced control technologies. Whether it is through the added temperature control system that can simulate different temperature environments for aging test, it can fully understand the performance change law of the battery under various temperature conditions, such as determining the upper limit of the safe working temperature of the battery in a high temperature environment, and the lower limit of the available capacity in a low temperature environment, etc., and the added humidity control system can simulate different humidity environments, so as to deeply study the impact of humidity on battery performance, which is helpful to improve the sealing design and material selection of the battery, and improve the environmental adaptability of the battery, so as to more comprehensively simulate the actual use conditions, improve the authenticity and accuracy of the test results, and ensure through multiple sets of sensing technology and automated control strategies. The accuracy and stability of various parameters reduce the impact of human errors and improve the comprehensiveness of battery aging test data. The added vibration module can simulate the vibration environment, which can more accurately evaluate the performance and life of the battery in actual use. Vibration can accelerate the wear of internal battery materials and structural changes, thereby accelerating the aging process of the battery, which helps to evaluate the long-term performance of the battery in a shorter time. At the same time, through vibration testing, the performance data of the battery under different environmental conditions can be obtained in a shorter time, improving the test efficiency. Vibration testing can help evaluate the safety of the battery in a vibration environment, such as the sealing of the battery, the stability of the internal connections, etc., to ensure the safety of the battery in actual use and improve the diversity of battery aging test data.

[0017] Before starting the test, this solution sets the relevant parameters of the temperature control system, humidity control system and vibration module according to the test requirements. For example, the high temperature value, low temperature value and temperature change rate required for the test are set in the temperature control system; the high humidity value, low humidity value and humidity adjustment frequency are set in the humidity control system; the vibration frequency, amplitude, vibration direction and other parameters are set in the vibration module. At the same time, multiple sets of sensors are installed in appropriate locations to ensure that the various performance data of the battery can be accurately collected, such as the temperature sensor measures the surface temperature of the battery, the humidity sensor monitors the ambient humidity, and the vibration sensor detects the vibration state of the battery. After starting the test, the temperature control system starts to adjust the temperature of the test environment according to the set parameters, simulating the temperature change process from low temperature to high temperature or vice versa. The humidity control system works synchronously to adjust the ambient humidity to the set value and keep it stable or adjust it according to the set humidity change curve.

[0018] The vibration module starts to drive the battery to vibrate according to the set vibration parameters, simulating the vibration of the battery in actual use. During this process, multiple sets of sensors collect real-time battery performance data, including battery voltage, current, temperature, humidity, and vibration-related data. These data are transmitted to the automatic control system. The automatic control system adjusts parameters such as temperature, humidity, and vibration in real time according to the preset control strategy to ensure that each parameter is always kept within the set accuracy range.

[0019] If the temperature deviates from the set value, the temperature control system will automatically adjust the heating or cooling equipment; if the humidity changes, the humidity control system will promptly start the humidification or dehumidification operation; if the vibration parameters deviate, the vibration module will make corresponding adjustments. When the test reaches the predetermined time or the battery performance reaches a certain termination condition (such as the capacity decays to a certain degree, the internal resistance increases to a specified value, etc.), the test stops. The automated control system will organize and analyze all the collected data.

[0020] By analyzing the changing patterns of battery performance data under different temperature, humidity and vibration conditions, we can obtain the performance characteristics, aging degree and safety evaluation results of the battery under various environmental conditions. These results can provide a comprehensive and accurate basis for further improvement of batteries, optimization of production processes and determination of application scenarios.

[0021] The core of this solution is to simulate different temperature environments for aging tests, so as to fully understand the performance change rules of the battery under various temperature conditions from high temperature to low temperature, such as accurately determining the upper temperature limit of the battery's safe operation in a high temperature environment, and the lower limit of the available capacity in a low temperature environment. This provides key data support for the application of the battery in different temperature scenarios, and simulates different humidity environments to deeply study the impact of humidity on battery performance. It helps to improve the battery's adaptability to different humidity environments from the perspective of improving battery sealing design and material selection, so that the battery can work stably in humid or dry actual environments. By simulating the vibration environment, considering that the battery will inevitably be affected by vibration in actual use (such as electric vehicle driving, mobile device carrying, etc.), this module makes the test environment closer to the actual use scenario, so as to more accurately evaluate the performance and life of the battery in real use.

[0022] In summary, this solution successfully achieved the comprehensiveness of new energy battery aging test data through a series of innovative designs and intelligent total testing strategies, ensured the accuracy and stability of various parameters, reduced the impact of human errors, and improved the comprehensiveness of battery aging test data.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy battery aging test system that can simulate temperature and humidity, characterized in that: include: A vacuum sealed test chamber, a main control unit, a temperature control system, a humidity control system, a power management module, a battery tray and a vibration module. The main control unit, the temperature control system, the humidity control system, the power management module, the battery tray and the vibration module are all installed inside the vacuum sealed test chamber. The main control unit includes a data acquisition module, a microcontroller, a storage chip and a clock chip. The temperature control system includes a temperature sensor, a nickel-chromium alloy heating wire, a semiconductor refrigeration sheet and a temperature controller. The humidity control system includes a humidity sensor, a humidifier, a dehumidifier and a humidity controller. The power management module includes a power supply, a power conversion circuit and a power protection circuit. The vibration module includes a vibration motor, which is installed at the bottom of the inner cavity of the vacuum sealed test chamber. The battery tray is installed at the outer end of the output shaft of the vibration motor. A battery limit clamp is installed on the top of the battery tray.

2. A temperature and humidity simulating new energy battery aging test system according to claim 1, characterized in that: The data acquisition module includes a data acquisition card and a signal conditioning circuit. The data acquisition card is used to collect analog signals such as temperature sensors, humidity sensors, battery voltage, current, and digital signals of equipment such as battery management systems. The signal conditioning circuit is used to amplify, filter, and process the collected signals to improve signal quality.

3. A temperature and humidity simulating new energy battery aging test system according to claim 2, characterized in that: The data acquisition card is installed in an expansion slot in a main control unit, the signal conditioning circuit is installed on a circuit board of the data acquisition card, and the temperature sensor and the humidity sensor are connected to the analog input channel of the data acquisition card after passing through the signal conditioning circuit.

4. A temperature and humidity simulating new energy battery aging test system according to claim 1, characterized in that: The microcontroller is responsible for coordinating the work of the temperature control system, the humidity control system, the data acquisition module and the power management module. The storage chip is used to store the configuration parameters of the system. The clock chip provides an accurate time reference for the system to time-mark the test process. The microcontroller, the clock chip and the storage chip are connected via a communication interface.

5. The temperature and humidity simulating new energy battery aging test system according to claim 1 is characterized in that: The temperature sensor is used to measure the temperature of the test environment and convert the temperature signal into an electrical signal. The nickel-chromium alloy heating wire is used to increase the temperature inside the vacuum-sealed test chamber. The semiconductor cooling sheet is used to reduce the temperature inside the vacuum-sealed test chamber. The temperature controller calculates a control signal through a PID algorithm based on the difference between the temperature signal fed back by the temperature sensor and the set value to adjust the power of the nickel-chromium alloy heating wire or the semiconductor cooling sheet.

6. A new energy battery aging test system capable of simulating temperature and humidity according to claim 5, characterized in that: The temperature sensor is connected to the analog input interface of the temperature controller through a signal line to transmit the measured temperature signal to the temperature controller. The output interface of the temperature controller is connected to the nickel-chromium alloy heating wire and the semiconductor cooling sheet through a relay.

7. A temperature and humidity simulating new energy battery aging test system according to claim 1, characterized in that: The humidity sensor is used to measure the ambient humidity and convert the humidity signal into an electrical signal. The humidifier is used to increase the humidity inside the vacuum-sealed test chamber. The dehumidifier is used to reduce the humidity inside the vacuum-sealed test chamber. The humidity controller can calculate a control signal to adjust the operation of the humidifier and the dehumidifier based on the difference between the humidity signal fed back by the humidity sensor and the set value.

8. A temperature and humidity simulating new energy battery aging test system according to claim 7, characterized in that: The humidity sensor is connected to the analog input interface of the humidity controller through a signal line, and the output interface of the humidity controller is connected to the humidifier and the dehumidifier through a relay.

9. A temperature and humidity simulating new energy battery aging test system according to claim 1, characterized in that: The power supply provides power support for the entire test system, the power conversion circuit is used to convert AC power into DC power, or to perform voltage conversion on DC power to meet the voltage requirements of different devices, and the power protection circuit is used to protect the devices in the system from damage caused by power anomalies.

10. A temperature and humidity simulating new energy battery aging test system according to claim 9, characterized in that: The power supply is connected to the distribution box of the test system through a power cord, and a power conversion circuit and a power protection circuit are installed in the distribution box. The output of the power conversion is connected to the interface of the main control unit, the temperature control system, the humidity control system and the vibration module through the power cord.

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