An environmental chamber for dynamic hub testing of new energy vehicles

Abstract

The present invention discloses an environmental chamber for a dynamic hub rotating test of a new energy vehicle. The present invention relates to the technical field of environmental chambers, comprising an environmental chamber, wherein a collecting chamber is arranged at the bottom of the environmental chamber, and the floor of the environmental chamber is composed of a metal grating plate, and a plurality of metal grating leakage grooves penetrating up and down are arranged on the surface of the metal grating plate. A new energy vehicle is placed on the surface of the metal grating plate to carry out a dynamic hub rotating test of the whole vehicle. If a fire occurs in the new energy vehicle, the smoke generated can be sucked into the collecting chamber, thus avoiding the phenomenon of smoke polluting the atmosphere, which is more environmentally friendly. In the present invention, a metal grating plate is laid at the bottom of the environmental chamber, and the metal grating plate replaces a cement floor or a tile floor, thus avoiding the explosion of the ground when a fire occurs in the new energy vehicle, and the smoke generated can be sucked downward from the metal grating leakage groove into the collecting chamber, thus avoiding the phenomenon of drifting upward, and also not affecting the observation of the new energy vehicle by personnel or cameras.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental chambers, and in particular to an environmental chamber for dynamic hub rotation testing of new energy vehicles. Background Art

[0002] The dynamic hub test of new energy vehicles is usually carried out in an environmental chamber to avoid the risk of fire or explosion. However, if a fire occurs during the dynamic hub test of a new energy vehicle in an environmental chamber, the vehicle is usually towed out of the environmental chamber for fire extinguishing. However, new energy vehicles contain plastics, battery fluid, battery solid materials, etc., which will pollute the atmosphere when burned.

[0003] To this end, we provide an environmental chamber for dynamic hub testing of new energy vehicles to solve the above problems. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the present invention provides an environmental chamber for dynamic hub rotating test of new energy vehicles, which solves the problem that if a fire occurs when a new energy vehicle is undergoing a dynamic hub rotating test in the environmental chamber, the vehicle is usually towed out of the environmental chamber for fire extinguishing. However, the new energy vehicle contains plastics, battery fluid, battery solid materials, etc., which will cause pollution to the atmosphere when burned.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts an environmental chamber for dynamic hub rotation test of new energy vehicles, comprising:

[0006] An environmental chamber, wherein a collecting chamber is provided at the bottom of the environmental chamber, the floor of the environmental chamber is composed of a metal grid plate, the surface of the metal grid plate is provided with a plurality of metal grid leakage grooves penetrating up and down, and the new energy vehicle is placed on the surface of the metal grid plate to conduct a dynamic wheel rotation test of the whole vehicle;

[0007] The collecting cabin is provided with a suction assembly for sucking air in the environmental cabin, the suction assembly includes a metal partition, an air suction head structure and a gas purification box, the metal partition is fixedly installed inside the upper end of the collecting cabin, the metal partition divides the upper end of the collecting cabin into an upper air cavity, the air suction head structure includes an air suction pipe, an air suction channel and an air suction end expansion pipe, the air suction pipe is fixedly installed on the surface of the metal partition, and a plurality of air suction pipes are provided, and the plurality of air suction pipes are arranged at equal distances, the upper end of the air suction pipe is fixed between the air suction end expansion pipe, the air suction channel is arranged inside the air suction end expansion pipe, the two ends of the air suction channel pass through the bottom surface of the air suction end expansion pipe, the middle part of the air suction channel is connected to the interior of the air suction pipe, the lower end of the air suction pipe passes through the bottom of the metal partition, and a second air pipe is connected to the gas purification box, the second air pipe is connected to an air pump, the air pump is connected to the first air pipe, and the first air pipe is located below the metal partition.

[0008] As a further optimization of the above solution, a camera for monitoring the position of smoke in the environmental chamber is provided in the environmental chamber, and a solenoid valve is provided in the air intake pipe.

[0009] As a further optimization of the above solution, an entrance and an exit are arranged on one side of the environmental chamber, and a lifting door is arranged on the entrance and an exit so as to be raise or lowerable, and the entrance and an exit are used for new energy vehicles to enter and exit the environmental chamber.

[0010] As a further optimization of the above solution, the gas purification box is located outside the environmental chamber on a side away from the inlet and outlet.

[0011] As a further optimization of the above solution, the collection cabin is buried underground.

[0012] As a further optimization of the above scheme, a collection component for collecting waste liquid is also provided in the collection chamber, and the collection component includes a ceramic filter layer, which is arranged below the metal partition and the first air pipe, and the ceramic filter layer is provided with vertical pores and liquid collecting holes, and there are multiple vertical pores and liquid collecting holes, and the vertical pores are connected to the bottom of the liquid collecting holes. The liquid collecting holes are trumpet-shaped structures with a large mouth at the upper end, and the lower ends of the vertical pores are connected to the bottom of the ceramic filter layer, and the upper ends of the liquid collecting holes are connected to the top of the ceramic filter layer. The ceramic filter layer and the metal partition divide the interior of the collection chamber into a lower air cavity and a liquid cavity distributed up and down, and the metal partition is provided with multiple filter holes), and the filter holes) penetrate the upper and lower surfaces of the metal partition at the same time.

[0013] As a further optimization of the above solution, a sewage pipe is provided on one side of the liquid chamber.

[0014] As a further optimization of the above scheme, a sealing assembly is arranged above the ceramic filter layer, and the sealing assembly includes a connecting rod, a fuse and a sealing member. The connecting rod is horizontally arranged in a round rod structure, and one end of the connecting rod is fixedly connected to the inner wall of one end of the collecting chamber. There are multiple fuses and multiple seals, and the multiple fuses correspond to the multiple seals one by one. The fuse is fixedly connected to the lower surface of the connecting rod, and the seal is fixedly connected to the lower end of the fuse. The diameter of the seal is larger than the diameter of the vertical pore and smaller than the upper opening diameter of the liquid collecting hole, and the seal is directly opposite to the top of the liquid collecting hole.

[0015] As a further optimization of the above solution, the fuse is a low melting point metal fuse that melts at 400 °C.

[0016] As a further optimization of the above solution, the shape of the sealing element includes rectangular, spherical, and elliptical.

[0017] As a further optimization of the above scheme, a fire extinguishing storage box is fixedly installed on the inner wall of the upper end of the environmental chamber, the gas discharge end of the purification box is connected to the main pipeline, and a vertical partition is fixedly arranged inside the fire extinguishing storage box. There are multiple vertical partitions, and the multiple vertical partitions are equidistantly distributed. The multiple vertical partitions divide the interior of the fire extinguishing storage box into multiple adjacently distributed fire extinguishing medium storage boxes, and a fire extinguishing channel is arranged at the bottom of the fire extinguishing medium storage box, and a membrane is arranged in the fire extinguishing channel, and a branch pipe is arranged at the upper end of the fire extinguishing medium storage box, and the branch pipe is connected to the main pipe, and a solenoid valve is arranged in the branch pipe.

[0018] The environmental chamber for dynamic hub test of new energy vehicles of the present invention has the following beneficial effects:

[0019] The environmental chamber for dynamic hub test of new energy vehicle of the present invention can suck smoke generated when a fire occurs in the new energy vehicle into the collection chamber, thus avoiding the phenomenon of smoke polluting the atmosphere, which is more environmentally friendly.

[0020] The present invention discloses an environmental chamber for dynamic hub test of a new energy vehicle. In the present invention, a metal grid plate is laid on the bottom of the environmental chamber. The metal grid plate replaces the cement floor or the tile floor to prevent the ground from exploding when a new energy vehicle catches fire. The generated smoke can be sucked downward from the metal grid leakage groove into the collection chamber to avoid the phenomenon of drifting upward, and does not affect the observation of the new energy vehicle by personnel or cameras.

[0021] The present invention provides an environmental chamber for dynamic hub test of new energy vehicles. The camera in the present invention can monitor the position of smoke in the environmental chamber, thereby controlling the opening of the solenoid valve at the corresponding position, achieving the purpose of fixed-point smoke extraction, saving energy while ensuring good smoke extraction effect, and smoke will not diffuse around and above the new energy vehicle, and will not affect the camera's monitoring of the smoke in the environmental chamber or monitoring of the new energy vehicle;

[0022] In the environmental chamber for dynamic hub test of new energy vehicle of the present invention, the collecting chamber is buried underground, which saves space and has low underground temperature. When smoke is sucked into the collecting chamber, it is cooled down rapidly by underground conditions. The smoke discharged into the gas purification box has a lower temperature, and the particulate matter in the smoke is more easily separated. The low temperature condition in the gas purification box is ensured, and the phenomenon that the filter layer such as activated carbon in the gas purification box easily discharges harmful gases in reverse at high temperature is avoided.

[0023] The present invention provides an environmental chamber for dynamic hub testing of new energy vehicles. A high-power air pump is used as an air pump. When the air pump sucks air into the environmental chamber, the lifting door needs to be sealed. At this time, the environmental chamber can be quickly vacuumed, thereby isolating the air to prevent fire. The combined design of the air pump and the environmental chamber in the present invention can not only meet the purpose of sucking out smoke without affecting observation, but also can quickly extinguish the fire by isolating the air.

[0024] The environmental chamber for the dynamic hub rotating test of a new energy vehicle of the present invention can separate and collect smoke, solids and liquids generated during the dynamic hub rotating test of the new energy vehicle, thereby avoiding environmental pollution.

[0025] When the fire extinguishing effect by vacuuming the environmental chamber is not good, or when the flame is too large and there is no time to vacuum the environmental chamber, the fire extinguishing storage box of the present invention can be used to quickly extinguish the fire on the surface of the new energy vehicle.

[0026] The present invention fully utilizes the waste gas discharged from the purification box to complete the fire extinguishing medium delivery operation, does not need to use a power suction pump and other structures, and saves energy.

[0027] Through observation by the camera, it can be determined at which specific position of the new energy vehicle there is a flame. At this time, the corresponding solenoid valve above can be opened so that the gas is only filled into the corresponding fire extinguishing medium storage box, so that the fire extinguishing medium in the fire extinguishing medium storage box is discharged for fire extinguishing. Targeted fire extinguishing will not cause the fire extinguishing medium to be sprayed out all at once and cause waste.

[0028] With reference to the following description and drawings, a specific embodiment of the present invention is disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereby, and within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of an environmental chamber for a dynamic hub test of a new energy vehicle in Example 1 of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the metal grid plate of the present invention;

[0031] Figure 3 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0032] Figure 4 This is a schematic diagram of the structure of an environmental chamber for a dynamic hub test of a new energy vehicle in Example 2 of the present invention;

[0033] Figure 5It is a schematic diagram of the structure of the fire extinguishing storage box of the present invention.

[0034] In the figure: environmental chamber 1, metal grille plate 2, metal grille leakage groove 201, collection chamber 3, metal partition 4, filter hole 401, suction head structure 5, suction pipe 501, solenoid valve 502, suction channel 503, suction end expansion tube 504, ceramic filter layer 6, vertical pores 601, liquid collecting hole 602, lower air cavity 7, liquid cavity 8, sewage pipe 801, gas purification box 9, first air pipe 901, air pump 902, second air pipe 903, camera 10, inlet and outlet 11, lifting door 12, upper air cavity 13, connecting rod 14, fuse 15, seal 16, new energy vehicle 17, main pipeline 18, fire extinguishing storage box 19, vertical partition 20, fire extinguishing medium storage box 21, fire extinguishing channel 22, membrane body 23, branch pipeline 24, solenoid valve 25. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0036] It should be noted that when an element is referred to as being "disposed on, provided with" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected, connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. "Fixed connection" means a fixed connection. There are many ways of fixed connection, which are not within the scope of protection of this article. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not represent the only implementation method.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] In Example 1, please refer to the attached Figure 1-3The present invention provides a technical solution: an environmental chamber for dynamic hub test of new energy vehicle, including: an environmental chamber 1, which provides a place for dynamic hub test of new energy vehicle 17 to ensure the safety of the test. The environmental chamber 1 is equipped with corresponding fire extinguishing components, such as automatic fire extinguishing nozzles, fire extinguishing medium storage tanks, etc., which are not shown in the figure and are prior art and will not be described here. When a fire occurs in the new energy vehicle 17, the automatic fire extinguishing nozzles will spray the fire extinguishing medium in the fire extinguishing medium storage tank to extinguish the fire.

[0039] In order to solve the problem that if a fire occurs when a new energy vehicle is conducting a dynamic hub rotating test of the whole vehicle in an environmental chamber, the present invention usually pulls the vehicle out of the environmental chamber for fire extinguishing, but the new energy vehicle contains plastics, battery fluid, battery solid materials, etc., which will pollute the atmosphere when burned. A collecting chamber 3 is arranged at the bottom of the environmental chamber 1, and the floor of the environmental chamber 1 is composed of a metal grille plate 2. The surface of the metal grille plate 2 is provided with a plurality of metal grille leakage grooves 201 penetrating from top to bottom. The new energy vehicle 17 is placed on the surface of the metal grille plate 2 to conduct a dynamic hub rotating test of the whole vehicle. If a fire occurs in the new energy vehicle 17, the smoke generated can be sucked into the collecting chamber 3, thereby avoiding the phenomenon of smoke polluting the atmosphere, which is more environmentally friendly.

[0040] A suction assembly is used when extracting smoke. The suction assembly is arranged on the collecting cabin 3. The suction assembly includes a metal partition 4, an air suction head structure 5 and a gas purification box 9. The metal partition 4 is fixedly installed inside the upper end of the collecting cabin 3. The metal partition 4 divides the upper end of the collecting cabin 3 into an upper air cavity 13. The air suction head structure 5 includes an air suction pipe 501, an air suction channel 503 and an air suction end expansion pipe 504. The air suction pipe 501 is fixedly installed on the surface of the metal partition 4, and a plurality of air suction pipes 501 are arranged. The plurality of air suction pipes 501 are arranged at equal distances. The upper end of the air suction pipe 501 is fixed to the air suction end expansion pipe 504. The air suction channel 503 is arranged inside the air suction end expansion pipe 504. Both ends of the air suction channel 503 pass through the bottom surface of the air suction end expansion pipe 504. The middle part of the air suction channel 503 is connected to the bottom surface of the air suction end expansion pipe 504. The interior of the air intake pipe 501 is connected, and the lower end of the air intake pipe 501 passes through the bottom of the metal partition 4. A second air pipe 903 is connected to the gas purification box 9, and the second air pipe 903 is connected to the air pump 902, and the air pump 902 is connected to the first air pipe 901, and the first air pipe 901 is located below the metal partition 4; when working, the air pump 902 is started, and the air pump 902 generates suction, and the smoke inside the environmental chamber 1 is discharged into the gas purification box 9 through the air intake channel 503, the air intake pipe 501, the first air pipe 901 and the second air pipe 903 in turn, and is purified and then discharged into the atmosphere. The gas purification box 9 is a commonly used device for purifying gas in the prior art, which ensures that the gas discharged into the atmosphere is relatively clean. The gas purification box 9 is located on the outside of the environmental chamber 1 on the side away from the inlet and outlet 11, which is convenient for use and maintenance.

[0041] Furthermore, in the present invention, a metal grille plate 2 is laid at the bottom of the environmental chamber 1, and the metal grille plate 2 replaces the cement floor or the tile floor to prevent the ground from exploding when a fire occurs in the new energy vehicle 17, and the generated smoke can be sucked downward from the metal grille leakage groove 201 into the collection chamber 3, avoiding the phenomenon of drifting upwards, and does not affect the observation of the new energy vehicle 17 by personnel or the camera 10.

[0042] It should be noted that cement floors or tile floors are prone to explosion under high temperature because of uneven heating, which is a physical explosion. Cement is a poor conductor of heat. Under high temperature conditions, it will evaporate the water vapor in the concrete. When the local area is heated for a long time, the water vapor will expand due to the increase in heat, but cement concrete is very closed. When the water vapor pressure reaches the critical point and cannot release the pressure, it will cause the cement board to crack and cause an explosion. Ceramic tiles will burst after heating, which is mainly caused by thermal expansion and contraction caused by heat conduction. This is common knowledge and will not be elaborated here.

[0043] Furthermore, a camera 10 is arranged in the environmental cabin 1. The camera 10 is used to monitor the position of smoke in the environmental cabin 1. A solenoid valve 502 is arranged in the intake pipe 501. The camera 10 in the present invention can monitor the position of smoke in the environmental cabin 1, thereby controlling the solenoid valve 502 at the corresponding position to open, so as to achieve the purpose of smoking smoke at a fixed point and ensure that the smoke suction effect is good. The smoke will not spread around and above the new energy vehicle 17, and will not affect the camera 10 to monitor the smoke in the environmental cabin 1 or monitor the new energy vehicle 17.

[0044] Among them, the collecting chamber 3 is buried underground, which saves space, and the underground temperature is low. When the smoke is sucked into the collecting chamber 3, it is cooled down by the underground conditions. The temperature of the smoke discharged into the gas purification box 9 is relatively low, and the particulate matter in the smoke is easier to be separated. The low temperature condition in the gas purification box 9 is ensured, avoiding the phenomenon that the filter layers such as activated carbon in the gas purification box 9 are prone to reverse emission of harmful gases at high temperatures.

[0045] Considering that new energy vehicles have batteries, the batteries have battery liquid and battery solid substances, the battery liquid includes carbonate solvents dissolved with lithium hexafluorophosphate, gel electrolytes, etc., and the battery solid substances include iron phosphate, lithium salts, conductive carbon materials, lithium iron phosphate, lithium cobalt oxide, nickel-cobalt-manganese ternary materials, and nickel-cobalt-aluminum ternary materials; these materials will not only produce a large amount of harmful gases when burned, but also have the risk of explosion. Therefore, a collection component for collecting waste liquid is also provided in the collection cabin 3, and the collection component includes a ceramic filter layer 6, which is arranged below the metal partition plate 4 and the first air pipe 901, and the ceramic The filter layer 6 is provided with vertical pores 601 and liquid collecting holes 602, and there are multiple vertical pores 601 and liquid collecting holes 602. The vertical pores 601 are connected to the bottom of the liquid collecting holes 602, and the liquid collecting holes 602 are in a trumpet-shaped structure with a large opening at the upper end. The lower end of the vertical pores 601 is connected to the bottom of the ceramic filter layer 6, and the upper end of the liquid collecting holes 602 is connected to the top of the ceramic filter layer 6. The ceramic filter layer 6 and the metal partition 4 separate the interior of the collection chamber 3 into a lower air cavity 7 and a liquid cavity 8 distributed up and down. The metal partition 4 is provided with multiple filter holes 401, and the filter holes 401 penetrate the upper and lower surfaces of the metal partition 4 at the same time.

[0046] The collecting component in the present invention can collect liquids such as battery fluid, and the metal partition 4 can collect solids such as battery solid substances, so that the battery fluid and battery solid substances are separated from the new energy vehicle 17, avoiding the risk of battery fluid and battery solid substances burning with the new energy vehicle 17 to produce harmful gases or explode, thereby improving the safety of the whole vehicle during dynamic hub testing.

[0047] The specific process of collecting battery fluid and other liquids by the collection component is as follows:

[0048] When battery fluid, windshield washer fluid, coolant, engine oil and other liquids leak out of the new energy vehicle 17, they will enter the interior of the upper air cavity 13 through the metal grille leakage groove 201, and then enter the lower air cavity 7 through the filter hole 401. After entering the lower air cavity 7, they will pass through the liquid collecting hole 602 and the vertical pore 601 in turn to enter the liquid cavity 8 for collection, thereby realizing the collection and isolation of the liquid.

[0049] It should be noted that since the diameter of the vertical pores 601 is small, it is difficult for flames to enter the interior, and the suction force generated by the air pump 902 when working is conducive to the liquid entering the lower air cavity 7 and then into the liquid cavity 8, and the liquid will not be sucked away by the air pump 902, so it is highly practical.

[0050] The specific process of collecting battery solid matter in the metal separator 4 is as follows:

[0051] When the battery solid matter, plastic residue, etc. in the new energy vehicle 17 are detached, they enter the upper surface of the metal partition 4 through the metal grid leakage groove 201 on the metal grid plate 2, and are filtered out and collected. In actual use, a cleaning port can be provided at one end of the upper air cavity 13, and a sealing door can be provided at the cleaning port to facilitate regular cleaning of the battery fixed materials.

[0052] A sewage pipe 801 is provided on one side of the liquid chamber 8 , and a solenoid valve or other device may be provided in the sewage pipe 801 to facilitate regular treatment of the liquid collected in the liquid chamber 8 .

[0053] In order to further improve the safety, a sealing assembly is arranged above the ceramic filter layer 6, and the sealing assembly includes a connecting rod 14, a fuse 15 and a sealing member 16. The connecting rod 14 is horizontally arranged in a round rod structure, and one end of the connecting rod 14 is fixedly connected to the inner wall of one end of the collecting chamber 3. A plurality of fuses 15 and a plurality of sealing members 16 are arranged, and the plurality of fuses 15 correspond to the plurality of sealing members 16 one by one. The fuse 15 is fixedly connected to the lower surface of the connecting rod 14, and the sealing member 16 is fixedly connected to the lower surface of the fuse 15. The diameter of the sealing member 16 is larger than the diameter of the vertical pore 601 and smaller than the upper opening diameter of the liquid collecting hole 602. The sealing member 16 is directly opposite to the upper part of the liquid collecting hole 602. The sealing member can seal the vertical pore 601. When the flame falls to the upper surface of the ceramic filter layer 6, the flame will first burn out the fuse 15. When the fuse 15 is burned out, the sealing member 16 is sealed at the upper end of the vertical pore 601 due to the gravity drop. At this time, the flame and the liquid are isolated to ensure that the liquid will not burn, and the safety is high.

[0054] And due to the obstruction of the metal grille plate 2 and the metal partition plate 4, when the flame falls above the ceramic filter layer 6, most of the liquid on the new energy vehicle 17 has been discharged into the liquid cavity 8. There is no need to consider the problem that the subsequent liquid cannot enter the liquid cavity 8. When all the vertical pores 601 are sealed, generally all the liquid on the new energy vehicle 17 has been discharged into the liquid cavity 8.

[0055] In actual use, the fuse 15 is a low melting point metal fuse that melts at 200-300°C.

[0056] In the present invention, the shape of the seal 16 is spherical, and when the seal 16 falls due to gravity, it can seal just above the vertical pore 601, but the shape of the seal 16 can also be rectangular, elliptical, etc., which will not be described here. It can be adjusted according to actual needs.

[0057] The entrance and exit 11 is located at one side of the environmental chamber 1. A lift door 12 is provided on the entrance and exit 11 so as to allow the new energy vehicle 17 to enter and exit the environmental chamber 1. The lift door 12 is a common electric lift door in the prior art and will not be described in detail here.

[0058] The air pump 902 uses a high-power air pump. When the air pump 902 sucks air into the environmental chamber 1, the lifting door 12 needs to be sealed. At this time, the environmental chamber 1 can be quickly vacuumed, thereby isolating the air to prevent fire. The combined design of the air pump 902 and the environmental chamber 1 in the present invention can not only meet the purpose of absorbing smoke without affecting observation, but also can quickly extinguish the fire source by isolating the air.

[0059] In Example 2, please refer to the attached Figure 4-5 The present invention provides a technical solution: an environmental chamber for dynamic hub testing of new energy vehicles, wherein a fire extinguishing storage box 19 is fixedly installed on the inner wall of the upper end of the environmental chamber 1, a gas discharge end of the purification box 9 is connected to a main pipeline 18, a vertical partition 20 is fixedly arranged inside the fire extinguishing storage box 19, a plurality of vertical partitions 20 are arranged, and the plurality of vertical partitions 20 are distributed at equal distances, and the plurality of vertical partitions 20 divide the interior of the fire extinguishing storage box 19 into a plurality of adjacently distributed fire extinguishing medium storage boxes 21, a fire extinguishing channel 22 is arranged at the bottom of the fire extinguishing medium storage box 21, a membrane body 23 is arranged in the fire extinguishing channel 22, a branch pipe 24 is arranged at the upper end of the fire extinguishing medium storage box 21, the branch pipe 24 is connected to the main pipeline 18, and a solenoid valve 25 is arranged in the branch pipe 24.

[0060] First, when the fire extinguishing effect by vacuuming the environmental chamber 1 is not good (because there is air inside the car body and between parts, or inside the parts, the flame cannot be extinguished in time), or when the flame is large and there is no time to vacuum the environmental chamber 1, the fire extinguishing storage box 19 of the present invention can be used to quickly extinguish the fire on the surface of the new energy vehicle 17.

[0061] The specific method of use is: when the air pump 902 sucks out the air in the environmental chamber 1, the gas enters the main pipeline 18 after being filtered by the purification box 9, and the corresponding solenoid valve 25 is opened, so that the air enters the interior of the fire extinguishing medium storage box 21 through the branch pipeline 24, so that there is high pressure in the fire extinguishing medium storage box 21. Under the high pressure state, the membrane 23 is broken, so that the fire extinguishing dry powder and other fire extinguishing media stored in the fire extinguishing medium storage box 21 can fall on the surface of the new energy vehicle 17, thereby achieving the purpose of rapid fire extinguishing.

[0062] The present invention makes full use of the waste gas discharged from the purification box 9 to complete the fire extinguishing medium delivery operation, without using a power suction pump and other structures, thus saving energy.

[0063] Furthermore, through observation by the camera 10, it can be determined at which specific position of the new energy vehicle 17 the flame exists. At this time, the corresponding solenoid valve 25 above can be opened so that the gas is only filled into the corresponding fire extinguishing medium storage box 21, so that the fire extinguishing medium in the fire extinguishing medium storage box 21 is discharged for fire extinguishing. The targeted fire extinguishing will not cause the fire extinguishing medium to be sprayed out all at once and cause waste.

[0064] It should be noted that the membrane body 23 can use a membrane structure such as a plastic film that is easily broken by pressure. It can be selected according to the actual needs of technical personnel in this field. It will not be elaborated here. The solenoid valve 25 is linked with the camera 10 through the controller. When the camera 10 detects a fire at the corresponding position, it can feed back this information to the controller. The controller controls the corresponding solenoid valve 25 to open, thereby realizing the operation of discharging the fire extinguishing medium.

[0065] It is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmental chamber for dynamic hub test of new energy vehicles, characterized in that: include: An environmental chamber (1), wherein a collecting chamber (3) is arranged at the bottom of the environmental chamber (1), the floor of the environmental chamber (1) is formed by a metal grid plate (2), a surface of the metal grid plate (2) is provided with a plurality of metal grid leakage grooves (201) penetrating vertically, and a new energy vehicle (17) is placed on the surface of the metal grid plate (2) to perform a whole vehicle dynamic hub rotation test; The collection cabin (3) is provided with a suction assembly for sucking air from the environment cabin (1), the suction assembly comprising a metal partition (4), a suction head structure (5) and a gas purification box (9), the metal partition (4) being fixedly mounted inside the upper end of the collection cabin (3), the metal partition (4) dividing the upper end of the collection cabin (3) into an upper air cavity (13), the suction head structure (5) comprising a suction pipe (501), a suction channel (503) and a suction end expansion pipe (504), the suction pipe (501) being fixedly mounted on the surface of the metal partition (4), and a plurality of suction pipes (501) being provided, the plurality of suction pipes (501) being arranged at equal distances, the suction pipe (5 01) is fixed between the upper end of the air intake pipe (501) and the expansion pipe (504) at the air intake end, the air intake channel (503) is arranged inside the expansion pipe (504) at the air intake end, the two ends of the air intake channel (503) pass through the bottom surface of the expansion pipe (504) at the air intake end, the middle part of the air intake channel (503) is connected to the inside of the air intake pipe (501), the lower end of the air intake pipe (501) passes through the bottom of the metal partition (4), the gas purification box (9) is connected to a second air pipe (903), the second air pipe (903) is connected to an air pump (902), the air pump (902) is connected to a first air pipe (901), and the first air pipe (901) is located below the metal partition (4); An inlet and outlet (11) is provided on one side of the environmental chamber (1), and a lifting door (12) is provided on the inlet and outlet (11) so as to be liftable. The inlet and outlet (11) is used for a new energy vehicle (17) to enter and exit the environmental chamber (1); The gas purification box (9) is located outside the environmental chamber (1) on a side away from the inlet and outlet (11); The smoke inside the environmental chamber (1) is discharged into the gas purification box (9) through the air intake channel (503), the air intake pipe (501), the first air pipe (901) and the second air pipe (903) in sequence, and then purified and discharged into the atmosphere.

2. The environmental chamber for dynamic hub test of new energy vehicle according to claim 1, characterized in that: The environmental chamber (1) is provided with a camera (10) for monitoring the position of smoke in the environmental chamber (1), and the air intake pipe (501) is provided with a solenoid valve (502).

3. The environmental chamber for dynamic hub test of new energy vehicle according to claim 1, characterized in that: The collecting chamber (3) is buried underground.

4. The environmental chamber for dynamic hub test of new energy vehicle according to claim 1, characterized in that: The collecting chamber (3) is also provided with a collecting assembly for collecting waste liquid, the collecting assembly comprising a ceramic filter layer (6), the ceramic filter layer (6) being provided below the metal partition plate (4) and the first air pipe (901), and the ceramic filter layer (6) being provided with vertical pores (601) and liquid collecting holes (602), a plurality of each of the vertical pores (601) and the liquid collecting holes (602), the vertical pores (601) being connected to the bottom of the liquid collecting holes (602), and the liquid collecting holes (602) being provided with a plurality of each of the vertical pores (601) and the liquid collecting holes (602). ) is a trumpet-shaped structure with a large opening at the upper end, the lower end of the vertical pore (601) is connected to the bottom of the ceramic filter layer (6), and the upper end of the liquid collection hole (602) is connected to the top of the ceramic filter layer (6). The ceramic filter layer (6) and the metal partition (4) separate the interior of the collection chamber (3) into a lower air cavity (7) and a liquid cavity (8) distributed in an upper and lower manner. The metal partition (4) is provided with a plurality of filter holes (401)), and the filter holes (401) penetrate the upper and lower surfaces of the metal partition (4) at the same time.

5. The environmental chamber for dynamic hub test of new energy vehicle according to claim 4, characterized in that: A sewage discharge pipe (801) is provided on one side of the liquid chamber (8).

6. The environmental chamber for dynamic hub test of new energy vehicle according to claim 4, characterized in that: A sealing assembly is arranged above the ceramic filter layer (6), and the sealing assembly comprises a connecting rod (14), a fuse (15) and a sealing member (16). The connecting rod (14) is horizontally arranged in a round rod structure, and one end of the connecting rod (14) is fixedly connected to the inner wall of one end of the collecting chamber (3). A plurality of the fuses (15) and the sealing member (16) are arranged, and the plurality of fuses (15) correspond to the plurality of sealing members (16) one by one. The fuse (15) is fixedly connected to the lower surface of the connecting rod (14), and the sealing member (16) is fixedly connected to the lower end of the fuse (15). The diameter of the sealing member (16) is larger than the diameter of the vertical pore (601) and smaller than the upper end opening diameter of the liquid collecting hole (602), and the sealing member (16) is directly opposite to the upper side of the liquid collecting hole (602).

7. The environmental chamber for dynamic hub test of new energy vehicle according to claim 6, characterized in that: The fuse (15) is a low melting point metal fuse that melts at 200-300°C. The shape of the sealing member (16) includes rectangular, spherical, and elliptical.

8. The environmental chamber for dynamic hub test of new energy vehicle according to claim 6, characterized in that: A fire extinguishing storage box (19) is fixedly installed on the inner wall of the upper end of the environmental chamber (1); the gas discharge end of the purification box (9) is connected to the main pipeline (18); a vertical partition (20) is fixedly arranged inside the fire extinguishing storage box (19); a plurality of vertical partitions (20) are arranged, and the plurality of vertical partitions (20) are distributed at equal distances; the plurality of vertical partitions (20) divide the interior of the fire extinguishing storage box (19) into a plurality of adjacently distributed fire extinguishing medium storage boxes (21); a fire extinguishing channel (22) is arranged at the bottom of the fire extinguishing medium storage box (21); a membrane body (23) is arranged in the fire extinguishing channel (22); a branch pipeline (24) is arranged at the upper end of the fire extinguishing medium storage box (21); the branch pipeline (24) is connected to the main pipeline (18); and a solenoid valve (25) is arranged in the branch pipeline (24).

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