Temperature and humidity balanced high-voltage accelerated aging test box

Abstract

The invention discloses a high-voltage accelerated aging test box with balanced temperature and humidity, and relates to the technical field of material research and product quality detection.The high-voltage accelerated aging test box comprises a test box body, a control system and a sensing detection module are installed in the test box body, and the sensing detection module is responsible for measuring test environment characteristics and material test characteristics in the test box body in real time; the test calculation adjustment module obtains compensation correlation coefficient information, an adjusted humidity value, an adjusted temperature value and thermal conductivity of temperature and humidity changes under different pressure change values according to test environment characteristics and material test characteristics, and the control module is responsible for adjusting and controlling the humidity value and the temperature value in the test box in real time. According to the invention, the influence of the pressure change on the temperature and humidity can be effectively dealt with, the environment in the box is ensured to be fast, stable and balanced, meanwhile, the thermal conductivity of the material is accurately calculated, and the thermal performance of the material in a complex environment is reflected.

Description

Technical Field

[0001] The present invention relates to the technical fields of material research and product quality inspection, and particularly to a high-pressure accelerated aging test chamber with temperature and humidity balance. Background Art

[0002] In the fields of material research and product quality inspection, a high-pressure accelerated aging test chamber with temperature and humidity balance is widely used to simulate the aging process of materials in complex environments to evaluate the performance and reliability of materials.

[0003] Currently, the prior art usually adopts a temperature and humidity control method with fixed parameters and cannot make real-time adjustments according to the temperature and humidity differences and pressure changes at different positions inside the test chamber. In this way, during the actual test process, when the pressure changes, the fluctuations of temperature and humidity cannot be compensated in a timely manner, which will lead to uneven temperature and humidity inside the chamber and affect the test accuracy.

[0004] The prior art often also ignores the influence of pressure changes on temperature and humidity balance. In a high-pressure environment, the change of pressure will cause the temperature and humidity to change, but the existing test chambers cannot dynamically adjust the control parameters of temperature and humidity according to the real-time change of pressure, thus affecting the reliability of test results.

[0005] In addition, for different materials and test requirements, the existing test chambers need to manually adjust parameters repeatedly, which is not only inefficient but also difficult to find the optimal control parameters, resulting in poor adaptive ability and control performance of the test chambers. Summary of the Invention

[0006] The purpose of the present invention is to provide a high-pressure accelerated aging test chamber with temperature and humidity balance, which solves the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions, including a test chamber, inside which a control system and a sensing and detection module are installed. A test calculation and adjustment module, a control module, and a visualization module are connected inside the control system; The sensing and detection module is used to measure in real time the test environment characteristics in the test chamber, including the initial pressure value, the pressure change value at each pressure stage, the humidity value, and the temperature value, and to measure the material test characteristics, including the thickness, heat transfer area, heat passing through per unit time, starting temperature value, and ending temperature value of the material in the test chamber; The test calculation and adjustment module is used to receive the test environment characteristics and the material test characteristics transmitted by the sensing and detection module, and to obtain compensation correlation coefficient information according to the test environment characteristics and the material test characteristics; Obtain the adjusted humidity value, the adjusted temperature value, and the thermal conductivity at which the temperature and humidity change under different pressure change values according to the test environment characteristics, the material test characteristics, and the compensation correlation coefficient information; The control module is configured to receive the adjusted humidity value and the adjusted temperature value, and perform real-time adjustment control on the humidity value and the temperature value in the test chamber according to the adjusted humidity value and the adjusted temperature value; The visualization module is configured to receive the thermal conductivity and draw a line graph of the thermal conductivity according to the change in the pressure change value.

[0008] Optionally, the sensing and detection module includes a pressure sensor unit, a temperature sensor unit, a humidity sensor unit, a measuring tool recording unit, and a heat measurement unit; The pressure sensor unit is configured to measure the initial pressure value and the pressure change value in the test chamber in real time; The temperature sensor unit is configured to measure the temperature value in the test chamber, as well as the starting temperature value and the ending temperature value of the material in real time; The humidity sensor unit is configured to measure the humidity value in the test chamber in real time; The measuring tool recording unit is configured to measure the thickness and the heat transfer area of the material; The heat measurement unit is configured to measure the heat passing through the material per unit time in real time.

[0009] Optionally, the test calculation and adjustment module includes a parameter calculation unit, a temperature and humidity adjustment calculation unit, and a thermal conductivity calculation unit; The parameter calculation unit is configured to obtain the compensation correlation coefficient information according to the test environment characteristics and the material test characteristics; The temperature and humidity adjustment calculation unit: is configured to obtain the adjusted humidity value and the adjusted temperature value; The thermal conductivity calculation unit: is configured to obtain the thermal conductivity.

[0010] Optionally, the compensation correlation coefficient information includes a humidity-pressure compensation coefficient, a temperature-pressure compensation coefficient, and a temperature-humidity correlation coefficient; During the test, put the same type of material into the test chamber, conduct multiple tests and record the test data, and then use the least squares method to calculate the compensation correlation coefficient information; The specific test conditions for the compensation correlation coefficient information are as follows: The test conditions for the humidity-pressure compensation coefficient: keep the test temperature value constant, change the test pressure value in the test chamber, and record the corresponding stable humidity values at different pressures; Test conditions for the temperature-pressure compensation coefficient: Keep the test humidity value constant, change the test pressure value, and record the different pressure values and the corresponding stable temperature values obtained under the changed test pressure value; Test conditions for the temperature-humidity correlation coefficient: Keep the test pressure value unchanged, change the test humidity value, and record the different humidity values and the corresponding stable temperature values obtained under the changed test humidity value.

[0011] Optionally, the temperature and humidity adjustment calculation unit subtracts the initial pressure value from the pressure change value to obtain a pressure change difference; The pressure change difference is multiplied by the humidity-pressure compensation coefficient to obtain a humidity adjustment amount required to adjust the humidity value due to the pressure change; The humidity adjustment amount is added to the humidity value to obtain the adjusted humidity value after pressure compensation; The temperature and humidity adjustment calculation unit multiplies the pressure change difference by the temperature-pressure compensation coefficient to obtain a first adjustment amount required to adjust the temperature value due to the pressure change; The adjusted humidity value is subtracted from the humidity value to obtain a change amount of the adjusted humidity. The change amount is multiplied by the temperature-humidity correlation coefficient to obtain a second adjustment amount required to adjust the temperature value due to the humidity change. After adding the temperature value to the first adjustment amount and the second adjustment amount, the adjusted temperature value after pressure compensation is obtained.

[0012] Optionally, the starting temperature value is subtracted from the adjusted temperature value to obtain a starting temperature difference. Based on the ending temperature value and the adjusted temperature value, an ending temperature difference is obtained. The starting temperature difference and the ending temperature difference are averaged after addition to obtain a comprehensive temperature difference.

[0013] Optionally, the thermal conductivity calculation unit obtains the total heat transfer characteristic of the material transmitted under the thickness according to the heat quantity and the thickness; According to the heat transfer area and the comprehensive temperature difference, obtain the comprehensive heat transfer ability characteristic of the material through the heat transfer area; Divide the total heat transfer characteristic by the comprehensive ability characteristic to obtain the thermal conductivity of the material.

[0014] Optionally, during the test, the visualization module records the pressure change value, the adjusted humidity value, the adjusted temperature value, and the thermal conductivity corresponding to each pressure stage. Using the pressure change value as the abscissa and the thermal conductivity as the ordinate, the data points of each pressure stage are plotted on a coordinate graph, and then these data points are connected in sequence by line segments to form a line graph of the thermal conductivity varying with pressure. At the same time, as needed, lines of different colors and styles are added to distinguish the changes in thermal conductivity under different humidity and temperature conditions, and by observing the line graph, the trends of the thermal conductivity varying with pressure, temperature, and humidity are observed.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the test environment characteristics and material test characteristics measured in real time by the sensing detection module of the present invention, and the compensation correlation coefficient information obtained by the test calculation adjustment module according to the test environment characteristics and material test characteristics, firstly, the humidity can be dynamically adjusted according to the real-time change of pressure, realizing the adaptive adjustment of humidity. And when the pressure increases, the humidity can be timely increased to compensate for the resulting humidity drop, ensuring uniform and rapid balance of the humidity in the chamber. Secondly, when the pressure and humidity change, the change trend of temperature can be predicted in advance and adjusted, effectively reducing the temperature fluctuation and enabling the environment in the chamber to reach and maintain a stable equilibrium state faster. Among them, when calculating the adjusted humidity value and the adjusted temperature value, pressure, temperature, and humidity are considered as interrelated variables, and a correlation control mechanism between pressure and temperature and humidity is established. In this way, while adjusting the pressure, the adjustment strategy is optimized in real time according to the changes of temperature and humidity, ensuring that the temperature and humidity are always in a precise equilibrium state under high-pressure conditions.

[0016] In addition, the compensation correlation coefficient information is obtained through a large number of tests and data statistical analysis, so as to be able to automatically adapt to the changes of different test conditions and sample characteristics, realizing the self-tuning of control parameters.

[0017] Second, by comprehensively considering the difference between the adjusted temperature value after pressure compensation and the starting temperature value and the ending temperature value of the present invention, a more accurate comprehensive temperature difference is calculated, so as to accurately calculate the thermal conductivity of the material and comprehensively reflect the temperature change situation during the heat conduction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view of this high-pressure accelerated aging test chamber; Figure 2 is the test flow chart of this high-pressure accelerated aging test chamber.

[0019] In the figure: 1 - test chamber, 2 - control system. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Regarding this high-pressure accelerated aging test chamber, different from the existing high-pressure accelerated aging test chamber, the existing high-pressure accelerated aging test chamber has problems such as inaccurate temperature and humidity control, insufficient associated control of pressure with temperature and humidity, and difficulty in tuning control parameters. However, the present invention ensures accurate control of temperature and humidity, coordinated control of pressure with temperature and humidity, and self-tuning of control parameters.

[0022] Example 1, please refer to Figure 1 and Figure 2 , this embodiment provides a high-pressure accelerated aging test chamber with temperature and humidity balance, including a test chamber 1. Inside the test chamber 1, a control system 2 and a sensing and detection module are installed. Inside the control system 2, a test calculation and adjustment module, a control module, and a visualization module are connected; The sensing and detection module is used to measure in real time the test environment characteristics in the test chamber 1, including the initial pressure value, the pressure change value at each pressure stage, the humidity value, and the temperature value, as well as the material test characteristics, including the thickness, heat transfer area, heat passing through per unit time, starting temperature value, and ending temperature value of the material in the test chamber 1; The test calculation and adjustment module is used to receive the test environment characteristics and material test characteristics transmitted by the sensing and detection module, and obtain compensation correlation coefficient information according to the test environment characteristics and material test characteristics; According to the test environment characteristics, material test characteristics, and compensation correlation coefficient information, obtain the adjusted humidity value, adjusted temperature value, and the thermal conductivity of the change of temperature and humidity under different pressure change values; The control module is used to receive the adjusted humidity value and adjusted temperature value, and perform real-time adjustment and control of the humidity value and temperature value in the test chamber 1 according to the adjusted humidity value and adjusted temperature value; The visualization module is used to receive the thermal conductivity and draw a line graph of the change of the thermal conductivity according to the change of the pressure change value; The sensing and detection module includes a pressure sensor unit, a temperature sensor unit, a humidity sensor unit, a measuring and recording unit, and a heat measurement unit; The pressure sensor unit is used to measure in real time the initial pressure value and pressure change value in the test chamber 1; The temperature sensor unit is used to measure in real time the temperature value in the test chamber 1, as well as the starting temperature value and ending temperature value of the material; A humidity sensor unit for measuring the humidity value inside the test chamber 1 in real time; A measuring tool recording unit for measuring the thickness and heat transfer area of the material; A heat measurement unit for measuring the heat passing through the material per unit time in real time; The test calculation and adjustment module includes a parameter calculation unit, a temperature and humidity adjustment calculation unit, and a thermal conductivity calculation unit; The parameter calculation unit is used to obtain compensation correlation coefficient information according to the test environment characteristics and material test characteristics; The temperature and humidity adjustment calculation unit: used to obtain the adjusted humidity value and the adjusted temperature value; The thermal conductivity calculation unit: used to obtain the thermal conductivity.

[0023] In this embodiment, the system combines a sensing detection module, a test calculation and adjustment module, a control module, and a visualization module, as well as a test chamber 1 and data acquisition and processing equipment, to achieve precise adaptive control of temperature and humidity, thereby effectively coping with the influence of pressure changes on temperature and humidity, ensuring the rapid and stable balance of the environment inside the chamber, accurately calculating the thermal conductivity of the material, reflecting the thermal performance of the material under complex environments, improving the test accuracy and reliability, and enhancing the adaptability of the test chamber 1 to different test conditions and samples.

[0024] Please refer to Figure 1 and Figure 2 , the compensation correlation coefficient information includes a humidity-pressure compensation coefficient, a temperature-pressure compensation coefficient, and a temperature-humidity correlation coefficient; During the test, put the same type of material into the test chamber 1, conduct multiple tests and record the test data, and then use the least squares method to calculate the compensation correlation coefficient information; The specific test conditions for the compensation correlation coefficient information are as follows: Test conditions for the humidity-pressure compensation coefficient: Keep the test temperature value constant, change the test pressure value inside the test chamber 1, and record the corresponding stable humidity values at different pressures; Test conditions for the temperature-pressure compensation coefficient: Keep the test humidity value constant, change the test pressure value, and record the different pressure values and the corresponding stable temperature values obtained under the changed test pressure value; Test conditions for the temperature-humidity correlation coefficient: Keep the test pressure value unchanged, change the test humidity value, and record the different humidity values and the corresponding stable temperature values obtained under the changed test humidity value.

[0025] The calculation formulas for the humidity-pressure compensation coefficient, the temperature-pressure compensation coefficient, and the temperature-humidity correlation coefficient are as follows: ; a is the humidity-pressure compensation coefficient, n is the number of times of recording the humidity-pressure compensation coefficient test, xi To change the difference between the obtained different pressure values and the initial pressure value, i.e., P i The difference obtained by -P00, where P i Is the pressure value changed for the i-th time, P00 is the initial pressure value before the change test, x - Is the average value of x within n tests i y i Is the difference between the test humidity value and the stable humidity value corresponding to different pressures, i.e., SD i The difference obtained by -SD00, SD i Is the humidity value changed for the i-th time, SD00 is the humidity value before the change test, y - Is the average value of y within n tests i The average value of.

[0026] ; b is the temperature-pressure compensation coefficient, m is the number of records of the temperature-pressure compensation coefficient test, u j To change the difference between the obtained different pressure values and the initial pressure value, i.e., P j The difference obtained by -P00, where P j Is the pressure value changed for the j-th time, u - Is the average value of u within m tests j v j Is the difference between the test temperature value and the stable temperature value corresponding to different pressures, i.e., WD j The difference obtained by -WD00, WD j Is the temperature value changed for the j-th time, WD00 is the temperature value before the change test, v - Is the average value of v within m tests j The average value of; Among them, it should be noted that although the pressure value P changed for the i-th time i And the pressure value P changed for the j-th time j Do not belong to the same test in the test, but the initial pressure value P00 before the change test in the initial setting is the same.

[0027] ; c is the temperature-humidity correlation coefficient, p is the number of records of the temperature-humidity correlation coefficient test, s k Is the difference between the obtained different test humidity values and the initial humidity value, i.e., SD k The difference obtained by -SD00, SD k Is the humidity value changed for the k-th time, s - Is the average value of s within p tests k t k Is the difference between different temperature values and the stable temperature value, i.e., WDk - The difference obtained from WD00, WD k is the temperature value changed at the k-th time, t - is the average value of t within p tests k ; Here, it should be noted that although the humidity value SD changed at the i-th time i and the temperature value WD changed at the j-th time j and the humidity value SD changed at the k-th time k and the temperature value WD changed at the k-th time k do not belong to the same test in the experiment, but the humidity value SD00 before the change test and the temperature value WD00 before the change test in the initial setting are the same.

[0028] In this embodiment, the temperature and humidity adjustment calculation unit subtracts the initial pressure value from the pressure change value to obtain the pressure change difference; The pressure change difference is multiplied by the humidity-pressure compensation coefficient to obtain the humidity adjustment amount required to adjust the humidity value due to the pressure change; The humidity adjustment amount is added to the humidity value to obtain the adjusted humidity value after pressure compensation; The temperature and humidity adjustment calculation unit multiplies the pressure change difference by the temperature-pressure compensation coefficient to obtain the first adjustment amount required to adjust the temperature value due to the pressure change; The adjusted humidity value minus the humidity value is used to obtain the change amount of the adjusted humidity. The change amount is multiplied by the temperature-humidity correlation coefficient to obtain the second adjustment amount required to adjust the temperature value due to the humidity change. After adding the temperature value to the first adjustment amount and the second adjustment amount, the adjusted temperature value after pressure compensation is obtained; The calculation formula for the adjusted humidity value is as follows: ; Where: SD is the adjusted humidity value; SD0 is the basic humidity value set before the start of the test, and represents the humidity situation of the test chamber 1 in the initial state; The humidity-pressure compensation coefficient a is obtained through a large number of previous tests. While keeping the test temperature value constant, the test pressure value in the test chamber 1 is changed, and the corresponding stable humidity values under different pressures are recorded. It is calculated through linear regression analysis, and it reflects the humidity compensation amount corresponding to the unit pressure change.

[0029] P is the pressure change value, and P0 is the initial pressure value.

[0030] When calculating the adjusted temperature value, based on the temperature value, temperature-pressure compensation coefficient, pressure change difference, adjusted humidity value, and humidity value, the pressure change difference is multiplied by the temperature-pressure compensation coefficient to obtain a part of the adjustment amount required to adjust the temperature value due to the pressure change. The adjusted humidity change amount is obtained by subtracting the humidity value from the adjusted humidity value. The change amount is multiplied by the temperature-humidity correlation coefficient to obtain another part of the adjustment amount required to adjust the temperature value due to the humidity change. After adding the temperature value to the two adjustment amounts due to pressure and humidity changes, the adjusted temperature value after pressure compensation is obtained.

[0031] The calculation formula for the adjusted temperature value is as follows: ; Where: WD is the adjusted temperature value, and WD0 is the temperature reference set at the start of the test.

[0032] The temperature-pressure compensation coefficient b is also obtained through preliminary tests. While keeping the test humidity value constant, the test pressure value is changed, and different pressure values and the corresponding stable temperature values obtained under the change are recorded. It is calculated through linear regression and reflects the temperature compensation amount corresponding to a unit pressure change.

[0033] The temperature-humidity correlation coefficient c is obtained by keeping the test pressure value unchanged, changing the test humidity value, recording different humidity values and the corresponding stable temperature values obtained under the change, and through linear regression. It represents the temperature change amount corresponding to a unit humidity change; In this embodiment, the thermal conductivity calculation unit obtains the total heat transfer characteristics of the material at the thickness according to the heat and thickness; According to the heat transfer area and the comprehensive temperature difference, obtain the comprehensive heat transfer capacity characteristics of the material through the heat transfer area; Divide the total heat transfer characteristics by the comprehensive capacity characteristics to obtain the thermal conductivity of the material; The calculation formula for the thermal conductivity is as follows: ; Where: R is the thermal conductivity, W is the heat passing through the material per unit time, and W reflects the ability of the material to transfer heat during the test. H is the thickness of the material directly measured using a measuring tool, and M is the heat transfer area obtained through geometric calculation based on the shape and size of the material.

[0034] Please refer to Figure 1 and Figure 2 , subtract the starting temperature value from the adjusted temperature value to obtain the starting temperature difference. According to the ending temperature value and the adjusted temperature value, obtain the ending temperature difference. Perform an average process by adding the starting temperature difference and the ending temperature difference to obtain the comprehensive temperature difference. The specific calculation formula is as follows: ; Wherein: △WD is the comprehensive temperature difference between the temperature adjustment value after pressure compensation and the starting temperature of the material, and WD s is the starting temperature value detected in the initial stage of the test, and WD e is the ending temperature value detected in the ending stage of the test; represents the difference between the adjusted temperature value after pressure compensation and the starting temperature value of the material.

[0035] represents the difference between the adjusted temperature value after pressure compensation and the ending temperature value of the material. Add the results of these two differences to obtain a comprehensive temperature difference. Finally, perform an average operation on the comprehensive temperature difference to obtain the comprehensive temperature difference.

[0036] The purpose of such calculation is to more comprehensively and accurately reflect the temperature change experienced by the material during the heat conduction process, and it can better reflect the temperature influence in the actual heat conduction process than simply subtracting two temperature differences.

[0037] Example 2. Please refer to Figure 2 , during the test, the visualization module records the pressure change value, adjusted humidity value, adjusted temperature value, and thermal conductivity corresponding to each pressure stage. Using the pressure change value as the abscissa and the thermal conductivity as the ordinate, plot the data points of each pressure stage on the coordinate graph, and then connect these data points in sequence with line segments to form a line graph of the thermal conductivity changing with pressure. At the same time, according to needs, add lines of different colors and styles to distinguish the changes in thermal conductivity under different humidity and temperature conditions, and observe the trend of the thermal conductivity changing with pressure, temperature, and humidity by observing the line graph.

[0038] In this embodiment, the line graph visually shows the trend of the thermal conductivity changing with pressure, temperature, and humidity. Thus, without analyzing a large amount of data, just by observing the trend of the line graph, it is possible to quickly judge whether the thermal conductivity rises, falls, or fluctuates as the pressure increases, which helps to grasp the change law of the thermal conductivity under different environmental conditions as a whole. And through the line graph, the special nodes of the thermal conductivity change can be clearly identified. These special nodes correspond to the physical and chemical changes of the material, and timely discovery of these special nodes helps to deeply study the performance changes of the material under specific conditions.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature and humidity balanced high-pressure accelerated aging test chamber, characterized in that: It comprises a test box (1), wherein a control system (2) and a sensor detection module are installed inside the test box (1), and a test calculation adjustment module, a control module and a visualization module are connected inside the control system (2); The sensing detection module is used to measure in real time the test environment characteristics in the test box (1), including the initial pressure value, the pressure change value in each pressure stage, the humidity value, and the temperature value, and to measure the material test characteristics in the test box (1), including the thickness, heat transfer area, heat passing through per unit time, the starting temperature value, and the ending temperature value; The test calculation adjustment module is used to receive the test environment characteristics and the material test characteristics transmitted by the sensor detection module, and obtain compensation correlation coefficient information according to the test environment characteristics and the material test characteristics; According to the test environment characteristics, the material test characteristics, and the compensation correlation coefficient information, an adjusted humidity value, an adjusted temperature value, and thermal conductivity of temperature and humidity changes under different pressure change values ​​are obtained; The control module is used to receive the adjusted humidity value and the adjusted temperature value, and to adjust and control the humidity value and the temperature value in the test box (1) in real time according to the adjusted humidity value and the adjusted temperature value; The visualization module is used to receive the thermal conductivity and draw a line graph of the thermal conductivity according to the change of the pressure change value.

2. The temperature and humidity balanced high-pressure accelerated aging test chamber according to claim 1, characterized in that: The sensing detection module includes a pressure sensor unit, a temperature sensor unit, a humidity sensor unit, a measuring tool recording unit, and a heat measurement unit; The pressure sensor unit is used to measure the initial pressure value and the pressure change value in the test box (1) in real time; The temperature sensor unit is used to measure the temperature value in the test box (1) and the starting temperature value and the ending temperature value of the material in real time; The humidity sensor unit is used to measure the humidity value in the test box (1) in real time; The measuring tool recording unit is used to measure the thickness and the heat transfer area of ​​the material; The heat measurement unit is used to measure the heat passing through the material per unit time in real time.

3. The temperature and humidity balanced high-pressure accelerated aging test chamber according to claim 1, characterized in that: The test calculation and adjustment module includes a parameter calculation unit, a temperature and humidity adjustment calculation unit and a thermal conductivity calculation unit; The parameter calculation unit is used to obtain the compensation correlation coefficient information according to the test environment characteristics and the material test characteristics; The temperature and humidity adjustment calculation unit is used to obtain the adjusted humidity value and the adjusted temperature value; The thermal conductivity calculation unit is used to obtain the thermal conductivity.

4. The temperature and humidity balanced high-voltage accelerated aging test chamber according to claim 3, characterized in that: The compensation correlation coefficient information includes a humidity pressure compensation coefficient, a temperature pressure compensation coefficient and a temperature humidity correlation coefficient; During the test, similar materials are placed in the test box (1), and multiple tests are performed and the test data are recorded, and then the compensation correlation coefficient information is calculated using the least square method; The specific test conditions of the compensation correlation coefficient information are as follows: The test conditions of the humidity pressure compensation coefficient are: keeping the test temperature constant, changing the test pressure in the test box (1), and recording the corresponding stable humidity values ​​under different pressures; The test conditions of the temperature and pressure compensation coefficient are as follows: keep the test humidity value constant, change the test pressure value, and record the different pressure values ​​and corresponding stable temperature values ​​obtained under the changed test pressure value; The test conditions of the temperature-humidity correlation coefficient are as follows: keep the test pressure value unchanged, change the test humidity value, and record the different humidity values ​​and corresponding stable temperature values ​​obtained when the test humidity value is changed.

5. The temperature and humidity balanced high-pressure accelerated aging test chamber according to claim 4, characterized in that: The temperature and humidity adjustment calculation unit subtracts the initial pressure value from the pressure change value to obtain a pressure change difference; The pressure change difference is multiplied by the humidity pressure compensation coefficient to obtain a humidity adjustment amount for adjusting the humidity value due to the pressure change; The humidity adjustment amount is added to the humidity value to obtain the adjusted humidity value after pressure compensation; The temperature and humidity adjustment calculation unit multiplies the pressure change difference by the temperature and pressure compensation coefficient to obtain a first adjustment amount for adjusting the temperature value due to the pressure change; The humidity value is subtracted from the adjusted humidity value to obtain the change in the adjusted humidity, the change is multiplied by the temperature-humidity correlation coefficient to obtain the second adjustment amount required to adjust the temperature value due to the humidity change, and the first adjustment amount and the second adjustment amount are added to the temperature value to obtain the adjusted temperature value after pressure compensation.

6. The temperature and humidity balanced high-voltage accelerated aging test chamber according to claim 5, characterized in that: The starting temperature value is subtracted from the adjusted temperature value to obtain a starting temperature difference value, an ending temperature difference value is obtained according to the ending temperature value and the adjusted temperature value, and the starting temperature difference value and the ending temperature difference value are added and averaged to obtain a comprehensive temperature difference.

7. The temperature and humidity balanced high-voltage accelerated aging test chamber according to claim 6, characterized in that: The thermal conductivity calculation unit obtains the total heat characteristics transferred by the material at the thickness according to the heat and the thickness; According to the heat transfer area and the comprehensive temperature difference, obtaining a comprehensive capability characteristic of the material for heat transfer through the heat transfer area; The total heat characteristic is divided by the comprehensive capacity characteristic to obtain the thermal conductivity of the material.

8. The temperature and humidity balanced high-voltage accelerated aging test chamber according to claim 7, characterized in that: During the test, the visualization module records the pressure change value, the adjusted humidity value, the adjusted temperature value and the thermal conductivity corresponding to each pressure stage, and plots the data points of each pressure stage on a coordinate graph with the pressure change value as the horizontal coordinate and the thermal conductivity as the vertical coordinate. These data points are then connected in sequence with line segments to form a line graph of the thermal conductivity changing with pressure.

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