Environmental simulation test equipment and control method thereof

Abstract

The invention belongs to the technical field of test equipment, and discloses environment simulation test equipment and a control method thereof. The environment simulation test equipment comprises a test chamber, an explosion-proof assembly, an air suction device and a control device, a test sample is placed in the test chamber, the side wall of the test chamber is provided with an explosion-proof hole communicated with the inside and the outside of the test chamber, an explosion-proof piece covers the explosion-proof hole, and an air bag is communicated with the explosion-proof hole. High-pressure gas breaks through the anti-explosion piece to relieve pressure, the air bag can contain gas leaked from the anti-explosion hole, poisonous and harmful gas is prevented from being leaked, the external environment is prevented from being polluted, and the safety of operators is guaranteed. After the test sample explodes, the gas suction mechanism is started through the control device, so that poisonous and harmful gas can be sucked into the absorption box, and after absorption is completed, the test box is opened to check and clean the test sample, so that the next test is carried out, and the safety after the box is opened is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of test equipment, and particularly to an environmental simulation test equipment and a control method thereof. Background Art

[0002] A climate environment simulation test chamber is used to simulate climate environment conditions and test samples under the simulated climate environment conditions. During the test, accidental events may occur under the influence of the internal environment of the chamber and external input factors such as current, such as leakage of substances in the test samples or explosion of the test samples, resulting in a sharp increase in the air pressure inside the chamber, affecting the safety of the test chamber and the operators.

[0003] Generally, the test chamber has an explosion-proof port. When the test sample explodes, the gas inside the test chamber is relieved through the explosion-proof port to avoid damage to the chamber body. However, for some test samples, the explosion of the test sample generates toxic and harmful gases, which can harm the users of the equipment or other personnel around the test chamber.

[0004] Therefore, there is an urgent need for an environmental simulation test equipment and a control method thereof to solve the above problems. Summary of the Invention

[0005] An object of the present invention is to provide an environmental simulation test equipment that can relieve the pressure of the test chamber when the test sample explodes, prevent the leakage of test sample substances and toxic and harmful gases, and ensure the safety of the test equipment and the operators.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Provide an environmental simulation test equipment, including:

[0008] A test chamber, an explosion-proof hole is provided on the side wall of the test chamber, and a test cavity is formed inside the test chamber;

[0009] An explosion-proof component, the explosion-proof component includes an explosion-proof sheet and an airbag, the explosion-proof sheet covers the explosion-proof hole and is connected to the side wall of the test chamber, and the airbag is connected to the outside of the test chamber and communicates with the explosion-proof hole;

[0010] An air suction device, the air suction device communicates with the test cavity, is used to absorb the gas in the test cavity, and send the processed gas back to the test cavity;

[0011] A control device, the control device is signal-connected to the air suction mechanism.

[0012] As an optional solution of the environmental simulation test equipment, the explosion-proof component further includes a protective cover, and the protective cover covers the outside of the airbag and is connected to the test chamber.

[0013] As an alternative solution for the environmental simulation test equipment, the explosion-proof sheet includes a protective net, a rupture disc, and a connecting flange. The connecting flange is connected to the side wall of the test chamber, and the rupture disc is connected between the protective net and the connecting flange.

[0014] As an alternative solution for the environmental simulation test equipment, two explosion-proof sheets are provided in the explosion-proof assembly. The two explosion-proof sheets are arranged at intervals and are respectively connected to the inner side wall and the outer side wall of the test chamber.

[0015] As an alternative solution for the environmental simulation test equipment, the explosion-proof assembly further includes a connecting pipe, and the connecting pipe is connected between the two explosion-proof sheets.

[0016] As an alternative solution for the environmental simulation test equipment, the air suction device includes an absorption tank, an intake pipe, a return pipe, an air suction mechanism, and two first control valves. The air suction mechanism is arranged in the absorption tank. The intake pipe and the return pipe are both communicated between the absorption tank and the test chamber. The two first control valves are respectively connected to the intake pipe and the return pipe, and the two first control valves and the air suction mechanism are both in signal connection with the control device.

[0017] As an alternative solution for the environmental simulation test equipment, the test chamber is further provided with ventilation holes.

[0018] As an alternative solution for the environmental simulation test equipment, the test chamber further includes a second control valve. The second control valve is connected at the ventilation hole, and the second control valve is in signal connection with the control device.

[0019] As an alternative solution for the environmental simulation test equipment, the test chamber includes a box body, a box door, and a locking mechanism. The box door can open and close the box body. The locking mechanism is connected between the box body and the box door, and the locking mechanism is in signal connection with the control device.

[0020] Another object of the present invention is to provide a control method for an environmental simulation test equipment, which can control the experimental environment in the test equipment and relieve the pressure of the test chamber when the test sample explodes, prevent the leakage of the test sample substance and toxic and harmful gases, and ensure the stable operation of the test and the safety of the test equipment and operators.

[0021] To achieve this purpose, the present invention adopts the following technical solutions:

[0022] Provided is a control method for an environmental simulation test device, which is applied to the above-mentioned environmental simulation test device. The environmental simulation test device further includes a temperature control device, which includes a sensor and a temperature control unit. The sensor is arranged in the test chamber, and the control device is signal-connected to the sensor and the temperature control unit; the sensor feeds back the environmental conditions in the test chamber to the control device, and the control device controls the operation and shutdown of the temperature control device and the air suction device, wherein: when the sensor detects that the concentration of toxic and harmful gases in the test chamber reaches a preset threshold, the control device starts the air suction device to absorb and process the gases in the test chamber.

[0023] Advantages of the present invention:

[0024] The present invention provides an environmental simulation test device, including a test chamber, an explosion-proof component, an air suction device and a control device. The test sample is placed in the test chamber for testing. There is an explosion-proof hole on the side wall of the test chamber for communicating inside and outside the test chamber. An explosion-proof film covers the explosion-proof hole. When the test is carried out stably, the explosion-proof film is in a complete state, which can ensure the sealing of the test chamber. An airbag is connected to the explosion-proof hole. When the test sample explodes in the test chamber, the high-pressure gas can break through the explosion-proof film and relieve pressure from the test chamber through the explosion-proof hole, preventing damage caused by a sudden increase in air pressure in the test chamber. The airbag can accommodate the gas leaked from the explosion-proof hole, prevent the leakage of test sample substances and toxic and harmful gases, avoid polluting the external environment, and ensure the safety of the operator. After the test sample explodes, the air suction mechanism is turned on through the control device, so that the toxic and harmful gases can be sucked into the absorption box. When the absorption is completed, the test chamber can be opened to check and clean the test sample, so as to carry out the next test and ensure safety after opening the box.

[0025] The present invention also provides a control method for an environmental simulation test device. The sensor can feed back information such as the temperature, humidity and concentration of harmful gases in the test chamber to the control device. The control device controls the operation and shutdown of the temperature control unit to ensure the stability of the test environment in the test chamber. When the sensor detects that the concentration of toxic and harmful gases in the test chamber reaches a certain threshold, the control device starts the air suction device to absorb and process the gases in the test chamber, realizes the cleaning of the test chamber, and ensures the safety of the test device and the staff. Description of the drawings

[0026] Figure 1 is a schematic structural diagram of the environmental simulation test device provided by the present invention;

[0027] Figure 2 is Figure 1 a cross-sectional view taken along line A-A in

[0028] Figure 3It is an explosion diagram of the structural explosion-proof film and connecting pipe of the environmental simulation test equipment provided by the present invention.

[0029] In the figure:

[0030] 100. Test chamber; 110. Explosion-proof hole; 120. Test cavity; 130. Second control valve; 140. Box body; 150. Box door; 160. Locking mechanism;

[0031] 200. Explosion-proof component; 210. Explosion-proof film; 211. Protective net; 212. Bursting disc; 213. Connecting flange; 220. Airbag; 230. Protective cover; 240. Connecting pipe;

[0032] 300. Suction device; 310. Absorption box; 320. Intake pipe; 330. Return pipe; 340. First control valve;

[0033] 400. Control device; 410. Control box;

[0034] 500. Temperature control device; 510. Unit box. Detailed implementation manners

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0036] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above and over", and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below and under", and "under the bottom of" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "right", etc., which refer to the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings. These are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] As Figures 1 to 3 shown, the environmental simulation test equipment of this embodiment includes a test chamber 100, an explosion-proof component 200, a control device 400, and a temperature control device 500. An explosion-proof hole 110 is provided on the side wall of the test chamber 100, and a test cavity 120 is formed inside the test chamber 100. The explosion-proof component 200 includes an explosion-proof sheet 210 and an airbag 220. The explosion-proof sheet 210 covers the explosion-proof hole 110 and is connected to the side wall of the test chamber 100. The airbag 220 is connected outside the test chamber 100 and communicates with the explosion-proof hole 110.

[0040] The control device 400 includes a controller and a control box 410, and the controller is arranged inside the control box 410. In this embodiment, the controller can be a centralized or distributed controller. For example, the controller can be a single microcontroller or composed of multiple distributed microcontrollers. A control program can run in the microcontroller to control each component to achieve its functions.

[0041] The temperature control device 500 includes sensors, a temperature control unit, and a unit box 510. In this embodiment, the sensors are arranged inside the test cavity 120, the temperature control unit is arranged in the unit box 510, the unit box 510 is arranged below the test chamber 100, the control box 410 is arranged on one side of the unit box 510 and the test chamber 100, and the controller is signal-connected to the sensors and the temperature control unit.

[0042] Specifically, the sensors include multiple sensors such as a temperature sensor, a humidity sensor, and a gas concentration monitoring sensor, which are respectively used to monitor the temperature, humidity, and the concentration of toxic and harmful gases inside the test cavity 120. The temperature control unit includes a compressor, a heat exchanger, a fan, etc., and can exchange heat inside the test cavity 120. There are mature applications of temperature control units in the prior art, which will not be elaborated here. The multiple sensors can feedback the monitoring results to the controller, and the controller controls the opening and closing of the temperature control unit according to the monitoring results, so as to keep the environment inside the test cavity 120 stable.

[0043] Based on the above design, when using the environmental simulation test equipment provided in this embodiment, the test sample is placed in the test chamber 120 for testing. An explosion-proof hole 110 is provided on the side wall of the test chamber 100 to communicate the inside and outside of the test chamber 100. An explosion-proof film 210 covers the explosion-proof hole 110. When the test is proceeding stably, the explosion-proof film 210 is in a complete state, which can ensure the sealing of the test chamber 120. An airbag 220 is communicated with the explosion-proof hole 110. When the test sample explodes in the test chamber, the high-pressure gas can break through the explosion-proof film 210 and relieve pressure from the test chamber 120 through the explosion-proof hole 110, preventing damage caused by a sudden increase in air pressure in the test chamber 100. The airbag 220 can accommodate the gas leaked from the explosion-proof hole 110, preventing the leakage of test sample substances and toxic and harmful gases, avoiding polluting the external environment, and ensuring the safety of the operator.

[0044] Since the temperature in the test chamber 100 often needs to be adjusted, the air pressure in the test chamber 120 also constantly changes. Therefore, the test chamber 100 is also provided with a ventilation hole. The ventilation hole is provided on the top wall of the test chamber 100. The test chamber 120 is communicated with the outside through the ventilation hole, which can allow the air in the test chamber 120 to flow with the air outside the test chamber 100, thereby ensuring the balance of air pressure inside and outside the test chamber.

[0045] To prevent the leakage of toxic and harmful gases from the ventilation hole after the test sample explodes, the test chamber 100 further includes a second control valve 130. The second control valve 130 is connected to the ventilation hole, and the second control valve 130 is in signal connection with the control device 400. When the test is proceeding normally, the second control valve 130 remains open, and the ventilation hole can allow air to flow; when the test sample explodes, after the gas concentration sensor detects that the concentration of toxic and harmful gases increases and reaches a certain threshold, the controller closes the second control valve 130, causing the ventilation hole to close, preventing the leakage of toxic and harmful gases.

[0046] In this embodiment, the test chamber 100 includes a box body 140, a box door 150, and a locking mechanism 160. The box body 140 and the box door 150 can be opened and closed. When the box body 140 and the box door 150 are opened, the test sample can be taken out or placed in the test chamber 120. When the box body 140 and the box door 150 are closed, the test chamber 120 can be isolated, ensuring the test environment in the test chamber 120 and isolating toxic and harmful gases. The locking mechanism 160 is connected between the box body 140 and the box door 150, and the locking mechanism 160 is in signal connection with the control device 400. Optionally, the locking mechanism 160 is set as an electromagnetic lock, and the electromagnetic lock is in signal connection with the controller. When the concentration of toxic and harmful gases in the feedback result of the gas concentration sensor is higher than the preset threshold, the controller controls the electromagnetic lock to be in a continuously locked state, preventing the operator from accidentally opening the box door 150 and causing harm.

[0047] Further, the explosion-proof sheet 210 includes a protective net 211, a bursting disc 212, and a connecting flange 213. The connecting flange 213 is connected to the side wall of the test chamber 100, and the explosion-proof sheet 210 is fixed to the test chamber 100 through the connecting flange 213. The bursting disc 212 is connected between the protective net 211 and the connecting flange 213. Exemplarily, the bursting disc 212 can be made of aluminum foil, stainless steel, plastic sheet, etc.

[0048] During normal testing, the structure of the bursting disc 212 is intact and can seal the explosion-proof hole 110 to ensure the sealing of the test chamber 120. When the test sample explodes, the high-pressure gas can break through the bursting disc 212 and enter the explosion-proof hole 110. By setting the protective net 211, the test sample can be intercepted, preventing the test sample material from entering the explosion-proof hole during an explosion, avoiding the impact damage of the test sample material on the airbag, and facilitating later cleaning.

[0049] Optionally, referring to Figure 3 As shown, two explosion-proof sheets 210 are provided in the explosion-proof assembly 200. The two explosion-proof sheets 210 are spaced apart from each other and arranged back to back, that is, the connecting flanges of the two explosion-proof sheets 210 are respectively connected to the inner side wall and the outer side wall of the test chamber 100. By providing two explosion-proof sheets 210, that is, increasing the number of protective nets 211 in the explosion-proof assembly 200, the blocking effect on the test sample can be improved, and the overflow of explosion fragments can be prevented. It can be understood that in some embodiments, two protective nets 211 with different mesh diameters can further improve the interception effect on the test sample.

[0050] Optionally, the explosion-proof assembly 200 further includes a connecting pipe 240. The connecting pipe 240 is connected between the two explosion-proof sheets 210. After the test sample explodes, the bursting discs 212 of the two explosion-proof sheets 210 are broken through and need to be replaced to conduct the next test. By using the connecting pipe 240 to connect the two explosion-proof sheets 210 into a whole, that is, the connecting pipe 240 passes through the explosion-proof hole 110, the connection strength between the two explosion-proof sheets 210 can be improved, and the connecting pipe 240 can also accommodate some of the test sample material that overflows after the explosion. The connecting pipe 240 can be removed and cleaned when replacing the explosion-proof sheet 210, reducing the residue of the test sample material in the explosion-proof hole 110, ensuring the cleaning effect, and improving work efficiency.

[0051] It can be understood that the connecting pipe 240 is made of a material with a low thermal conductivity, which can effectively block the heat exchange inside and outside the test chamber 100 caused by the installation of the explosion-proof sheet 210, and ensure the temperature stability inside the test chamber 100. In this embodiment, the connecting pipe 240 is made of epoxy resin. Epoxy resin has a low thermal conductivity and good thermal stability. Its heat distortion temperature can reach 180 °C, and the allowable temperature range is 110 °C to 121 °C. In addition, epoxy resin also has good chemical corrosion resistance, has a good resistance to chemical substances such as acids and alkalis, and has a long service life.

[0052] Furthermore, the explosion-proof component 200 further includes a protective cover 230. The protective cover 230 covers the airbag 220 and is connected to the test chamber 100. It can not only protect the airbag 220, prevent the airbag 220 from being scratched and damaged and causing failure, but also improve the appearance and enhance the aesthetic degree of the explosion-proof component. In this embodiment, the protective cover 230 is arranged above the test chamber 100, which can make full use of the top space of the test chamber 100 and reduce the occupation of the ground space of this environmental simulation test equipment.

[0053] When the test sample explodes, the test chamber 120 is filled with toxic and harmful gases. In order to eliminate the toxic and harmful gases in the test chamber 100, this environmental simulation test equipment further includes a suction device 300. The suction device 300 includes an absorption tank 310 and a suction mechanism. The suction mechanism can be set as an air pump, a fan, etc. The suction mechanism is arranged inside the absorption tank 310. The inside of the absorption tank 310 is communicated with the test chamber 120. The control device 400 is signal-connected to the suction mechanism. When the gas concentration sensor monitors that the concentration of toxic and harmful gases reaches the threshold, the controller can turn on the suction mechanism to suck air, and suck the toxic and harmful gases into the absorption tank 310. The absorption tank 310 can absorb and dissolve the toxic and harmful gases. When the concentration of toxic and harmful gases is lower than the threshold, the suction mechanism is turned off, and then the chamber door 150 can be opened for operation.

[0054] Specifically, the air suction device 300 further includes an intake pipe 320, a return pipe 330, and two first control valves 340. Both the intake pipe 320 and the return pipe 330 are connected between the absorption tank 310 and the test chamber. The two first control valves 340 are respectively connected to the intake pipe 320 and the return pipe 330, and both the two first control valves 340 are in signal connection with the control device 400. When the test is proceeding normally, the two first control valves 340 are in a closed state to ensure the closure of the test chamber 120. When the test sample explodes, the controller can open the first control valves 340, so that the test chamber 120 is communicated with the intake pipe 320 and the return pipe 330. Toxic and harmful gases enter the absorption tank 310 through the intake pipe 320, and the safe gases return to the test chamber 120 through the return pipe 330. Optionally, in this embodiment, both the first control valve 340 and the second control valve 130 are set as electric ball valves. The electric ball valve technology is mature and has good reliability and performance stability.

[0055] It should be noted that the air suction device 300 further includes a purification mechanism. The purification mechanism is arranged in the absorption tank 310 and is in signal connection with the controller. When the test sample explodes, the controller can activate the purification mechanism to purify the toxic and harmful gases inhaled into the absorption tank 310. The purified safe gases flow back into the test chamber 120 through the return pipe 330. Specifically, the purification mechanism can adopt a variety of different purification methods. Exemplarily, CO and HF gases are removed by chemical adsorption method. The gas is adsorbed, absorbed by the filter material, and undergoes a chemical reaction (neutralization) with the filter material to generate harmless solids remaining in the absorption tank 310.

[0056] This embodiment also provides a control method for an environmental simulation test device, which is applied to the above environmental simulation test device. The environmental simulation test device further includes a temperature control device 500. The temperature control device 500 includes a sensor and a temperature control unit. The sensor is arranged in the test chamber, and the control device 400 is in signal connection with the sensor and the temperature control unit. The sensor feeds back the environmental conditions in the test chamber 120 to the control device 400, and the control device 400 controls the operation and shutdown of the temperature control device 500 and the air suction device 300, wherein: when the sensor detects that the concentration of toxic and harmful gases in the test chamber reaches the threshold value, the control device starts the air suction device to absorb and process the gases in the test chamber.

[0057] The control method of this environmental simulation test equipment can feed back information such as the temperature, humidity, and concentration of harmful gases in the test chamber 120 to the control device 400 through sensors. The control device 400 ensures the stability of the test environment in the test chamber 120 by controlling the operation and shutdown of the temperature control unit. When the sensor detects that the concentration of toxic and harmful gases in the test chamber 120 reaches a certain threshold, the control device 400 starts the suction device 300 to absorb and process the gas in the test chamber 120, realizing the cleaning of the test chamber 120 and ensuring the safety of the test equipment and the staff.

[0058] When using this environmental simulation test equipment, the specific control method is as follows:

[0059] First, open the door 150 of the test chamber 100, place the test sample in the test chamber 120, and close the door 150.

[0060] Second, the control device 400 controls the two first control valves 340 to be in the closed state and the second control valve 130 to be in the open state. And the control device receives the feedback from the temperature sensor and the humidity sensor, and controls the temperature control unit to start, ensuring that the test environment in the test chamber 120 remains stable. At this time, the test equipment operates normally, and the explosion-proof hole 110 is blocked by the explosion-proof sheet 210.

[0061] Third, when the test sample explodes, the high-pressure gas breaks through the explosion-proof sheet 210 and enters the airbag 220. At this time, the gas concentration sensor detects that the concentration of toxic and harmful gases reaches the preset threshold. The controller controls the second control valve 130 to close, and the locking mechanism 160 remains in the continuous locked state. At the same time, the two first control valves 340, the suction mechanism, and the purification mechanism are opened to absorb and purify the toxic and harmful gases in the test chamber 120, and the purified gas flows back to the test chamber 120.

[0062] Fourth, when the gas concentration sensor detects that the concentration of toxic and harmful gases in the test chamber 120 is lower than the preset threshold, the controller controls the two first control valves 340, the suction mechanism, and the purification mechanism to close, and opens the second control valve 130 and the locking mechanism 160, enabling the operator to open the door 150 to perform subsequent processing on the test sample and the test chamber 100, thereby avoiding the operator accidentally opening the door when the toxic and harmful gases have not been completely processed, causing harm to the operator or other people around the test chamber.

[0063] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. An environmental simulation test equipment, characterized in that: include: A test box (100), wherein an explosion-proof hole (110) is arranged on a side wall of the test box (100), and a test chamber (120) is formed in the test box (100); An explosion-proof component (200), the explosion-proof component (200) comprising an explosion-proof disk (210) and an airbag (220), the explosion-proof disk (210) covering the explosion-proof hole (110) and connected to the side wall of the test box (100), the airbag (220) connected to the outside of the test box (100) and communicating with the explosion-proof hole (110); An air suction device (300), the air suction device (300) being in communication with the test chamber (120) and being used for absorbing the gas in the test chamber (120) and returning the processed gas to the test chamber (120); A control device (400) is connected to the air intake device (300) via signals.

2. The environmental simulation test equipment according to claim 1, characterized in that: The explosion-proof assembly (200) further comprises a protective cover (230), wherein the protective cover (230) is disposed outside the airbag (220) and is connected to the test box (100).

3. The environmental simulation test equipment according to claim 1, characterized in that: The explosion-proof disc (210) comprises a protective net (211), a bursting disc (212) and a connecting flange (213); the connecting flange (213) is connected to a side wall of the test box (100); and the bursting disc (212) is connected between the protective net (211) and the connecting flange (213).

4. The environmental simulation test equipment according to any one of claims 1 to 3, characterized in that: The explosion-proof assembly (200) is provided with two explosion-proof sheets (210), and the two explosion-proof sheets (210) are arranged at intervals and are respectively connected to the inner wall and the outer wall of the test box (100).

5. The environmental simulation test equipment according to claim 4, characterized in that: The explosion-proof assembly (200) further comprises a connecting pipe (240), wherein the connecting pipe (240) is connected between the two explosion-proof sheets (210).

6. The environmental simulation test equipment according to claim 1, characterized in that: The air suction device (300) comprises an absorption box (310), an air intake pipe (320), an air return pipe (330), an air suction mechanism and two first control valves (340); the air suction mechanism is arranged in the absorption box (310); the air intake pipe (320) and the air return pipe (330) are both connected between the absorption box (310) and the test chamber (120); the two first control valves (340) are respectively connected to the air intake pipe (320) and the air return pipe (330); the two first control valves (340) and the air suction mechanism are both connected to the control device (400) by signal.

7. The environmental simulation test equipment according to claim 1, characterized in that: The test box (100) is also provided with air holes.

8. The environmental simulation test equipment according to claim 7, characterized in that: The test box (100) further comprises a second control valve (130), wherein the second control valve (130) is connected to the air vent, and the second control valve (130) is signal-connected to the control device (400).

9. The environmental simulation test equipment according to claim 1, characterized in that: The test box (100) comprises a box body (140), a box door (150) and a locking mechanism (160); the box door (150) is capable of opening and closing the box body (140); the locking mechanism (160) is connected between the box body (140) and the box door (150); and the locking mechanism (160) is signal-connected to the control device (400).

10. A method for controlling an environmental simulation test device, characterized in that: The environmental simulation test equipment according to any one of claims 1 to 9, wherein the environmental simulation test equipment further comprises a temperature control device (500), wherein the temperature control device (500) comprises a sensor and a temperature control unit, wherein the sensor is arranged in the test chamber, and the control device (400) is connected to the sensor and the temperature control unit by signals; The sensor feeds back the environmental conditions in the test chamber (120) to the control device (400), and the control device (400) controls the operation and shutdown of the temperature control device (500) and the air suction device (300), wherein: when the sensor detects that the concentration of toxic and harmful gases in the test chamber reaches a preset threshold value, the control device starts the air suction device to absorb the gas in the test chamber.

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