Environment bin for testing performance of power battery

Abstract

The invention relates to the field of battery testing, in particular to an environment bin for testing the performance of a power battery, which comprises an environment detection bin, a placement table, an isolation plate, an electric push rod I, a plug and the like, a plurality of placing tables are fixedly connected into the environment detection bin; the environment detection bin is communicated with a ventilation pipe, and a temperature sensor is arranged in the environment detection bin; an isolation plate is fixedly connected into the environment detection bin; the isolation plate is fixedly connected with a plurality of electric push rods I; and the telescopic parts of the two electric push rods in each front and back pair are fixedly connected with a plug connected with a test battery. Through rotation of the rotating plate and surrounding of the periphery of the tested battery by the side plate, the expanded tested battery is subjected to pre-protection operation in cooperation with covering of the concentric-square-shaped plate, and the sprayed electrolyte can be intercepted and shielded, so that the electrolyte cannot be sputtered around in the environment detection bin to the surface of other tested batteries, and the test of charge and discharge performance of other batteries cannot be influenced.

Description

Technical Field

[0001] The present invention relates to the field of battery testing, and in particular to an environmental chamber for power battery performance testing. Background Art

[0002] Power batteries are power sources that provide power and are widely used in electric vehicles, electric trains, electric bicycles, golf carts, etc.

[0003] An environmental chamber is a device used to test the charging and discharging performance and reliability of batteries. It simulates the battery working environment by setting and adjusting the internal temperature or humidity, thereby detecting the charging and discharging performance of the battery under normal working conditions. In order to ensure the accuracy of the battery charging and discharging performance test, multiple batteries are usually tested simultaneously in the same environmental chamber. However, when testing the performance of a battery working in a high temperature environment, as the battery continues to work in a high temperature environment and reaches its limit, the battery is very likely to continue to swell and break because it is still in the high temperature environment simulated in the environmental chamber, causing the electrolyte inside the battery to be ejected and splashed on the inner wall of the environmental chamber and the surface of other test batteries. The splashing of electrolyte on the surface of other batteries will change the temperature distribution of the battery and affect the test results of other batteries. The electrolyte is highly corrosive and toxic, and will also cause pollution and damage to the surface of surrounding batteries, affecting the testing of surrounding batteries. In addition, the detection fluid everywhere will increase the difficulty of subsequent manual cleaning.

[0004] In addition, the continuous expansion and damage of the battery can easily lead to fire and explosion, which will cause damage to the environmental chamber and make it impossible to conduct the next battery test in time. It will also increase the difficulty of subsequent maintenance and cleaning of the environmental chamber, thereby increasing the overall testing cost. Summary of the invention

[0005] In order to overcome the disadvantage that the battery is prone to swelling and damage during the test process, resulting in electrolyte spraying and affecting the test results of other batteries, the present invention provides an environmental chamber for power battery performance testing.

[0006] Technical solution: An environmental chamber for power battery performance testing, including an environmental testing chamber, a placement table, an isolation plate, an electric push rod and a plug; a plurality of placement tables are fixedly connected inside the environmental testing chamber; a ventilation pipe is connected to the environmental testing chamber, a temperature sensor is arranged inside the environmental testing chamber, and the ventilation pipe is connected to an external pump; an isolation plate is fixedly connected inside the environmental testing chamber; a plurality of electric push rods are fixedly connected to the isolation plate; each front and rear pair of two electric push rods have a telescopic part fixedly connected to a plug connected to the test battery, and the plug is located below the isolation plate; it also includes an electric slider, a sliding plate, a mounting plate, an electric roller, a rotating plate, a side plate, an electric push rod 2, a circular plate and an electric sealing plate; the environmental testing chamber is slidably connected to a plurality of electric sliders through a slide rail; Each of the two electric sliders facing each other front and back is detachably connected to a sliding plate, and the sliding plate is slidably connected to the corresponding placement table; each sliding plate is fixedly connected to a mounting plate through a connecting plate, and the mounting plate is located above the sliding plate; each mounting plate and the corresponding sliding plate are rotatably connected to a number of electric rollers; each electric roller is fixedly connected to a rotating plate, and the rotating plate is configured as a heat insulation plate; all rotating plates located at the front and rear sides are fixedly connected to a side plate; the isolation plate is fixedly connected to a number of electric push rods 2; the telescopic parts of each of four adjacent electric push rods 2 are fixedly connected to a circular plate, and the plug is in contact with the middle of the circular plate, and an industrial infrared sensor is provided on the circular plate; the sliding plate is provided with a collecting chamber; the entrance of the collecting chamber is rotatably connected to an electric sealing plate.

[0007] As an improvement to the above solution, the upper surface of the sliding plate is arranged to be inclined downward toward the electric sealing plate on all sides.

[0008] As an improvement of the above scheme, it also includes an air supply pipe, a hose, an air blowing pipe, a partition, an exhaust pipe and a connecting pipe; a flame sensor is also provided on the circular plate; each connecting plate on each sliding plate is fixedly connected to an air supply pipe, each air supply pipe is connected to an external pump through a connecting pipe, and the connecting pipe is a telescopic pipe; each air supply pipe is connected to a number of hoses; each rotating plate is fixedly connected to a number of air blowing pipes, and the air blowing pipes are connected to the hoses; a partition is fixedly connected to the collecting chamber of each sliding plate, the partition and the top wall of the sliding plate form an exhaust channel, and the electric sealing plate is in contact with the partition; each sliding plate is connected to an exhaust pipe, the exhaust pipe is connected to the exhaust channel formed in the sliding plate, an electric control valve is provided in the exhaust pipe, and the exhaust pipe is set as a telescopic pipe; except for the exhaust pipe located on the leftmost and rightmost sides of the environmental detection chamber, each adjacent two exhaust pipes are connected to a connecting pipe, the connecting pipe passes through the environmental detection chamber and is connected to the external suction mechanism, and the exhaust pipe located on the leftmost and rightmost sides of the environmental detection chamber passes through the environmental detection chamber and is directly connected to the external suction mechanism.

[0009] As an improvement of the above solution, rubber strips are provided at the edges of the rotating plate, and a sealing strip is provided at the bottom of the circular plate.

[0010] As an improvement of the above solution, a storage cavity is opened inside the circular plate, and an electric cover is rotatably connected to the lower side of the storage cavity.

[0011] As an improvement of the above scheme, it also includes a collecting plate; each rotating plate is rotatably connected to a plurality of collecting plates through a torsion spring, the collecting plates are arranged to be inclined downward, through holes are opened on the collecting plates, and the collecting plates are arranged to be made of rubber material.

[0012] As an improvement of the above solution, the air blowing pipe is arranged below the collecting plate and is arranged to be inclined upward.

[0013] As an improvement of the above solution, the end of the collecting plate is arranged to be in an arc shape.

[0014] As an improvement of the above solution, a filter screen is also included. The top wall inside the sliding plate and the partition plate are connected together with the filter screen for blocking the discharge of dry powder.

[0015] As an improvement of the above scheme, it also includes a telescopic spring; the inner top wall of the sliding plate and the partition are slidably connected to the filter screen; the filter screen is fixedly connected to a plurality of telescopic springs, and all the telescopic springs are fixedly connected to the partition.

[0016] Compared with the prior art, the present invention has the following advantages: the rotating plate rotates and surrounds the test battery on all sides with the side plate, and the circular plate is used to cover the swollen test battery, so that if the test battery swells and breaks during the test, the electrolyte inside the test battery can be intercepted and blocked when it is sprayed out, so that the electrolyte will not splash around in the environmental detection chamber to the surface of other test batteries, affecting the test of the charging and discharging performance of other batteries.

[0017] Air is blown into the formed enclosed space through the air blow pipe, so that the expanding test battery can be quickly cooled down, reducing the possibility of fire and explosion when the test battery expands, and only the formed enclosed space is cooled down, and the environmental detection chamber is still in a high temperature state, ensuring the normal testing of other test batteries and reducing the energy consumption of re-heating the environmental detection chamber during subsequent battery charge and discharge performance tests.

[0018] The floating dry powder is repeatedly pushed by repeatedly moving the rotating plate, thereby increasing the contact between the dry powder and the surface of the test battery and facilitating the pushing of the dry powder into the damaged part of the test battery, thereby improving the overall fire extinguishing effect; and the sprayed electrolyte can be absorbed by the falling dry powder liquid, making it easier to clean up later. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure inside the environmental detection chamber disclosed in the environmental chamber for power battery performance testing of the present invention; Figure 2It is a schematic diagram of the combined structure of the electric slider, the sliding plate, the rotating plate and the side plate disclosed in the environmental chamber for power battery performance testing of the present invention; Figure 3 It is a schematic diagram of the combined structure of an environmental testing chamber, an isolation plate, an electric push rod and a plug disclosed in the environmental chamber for power battery performance testing of the present invention; Figure 4 It is a schematic diagram of the combined structure of the mounting plate, the electric roller, the rotating plate and the side plate disclosed in the environmental chamber for power battery performance testing of the present invention; Figure 5 A state diagram of the rotating plate and the side plates rotating and surrounding the environmental chamber for power battery performance testing disclosed in the present invention; Figure 6 It is a schematic diagram of the combined structure of the electric push rod 2 and the circular plate disclosed in the environmental chamber for power battery performance testing of the present invention; Figure 7 A state diagram of the circular plate, the rotating plate and the side plate disclosed in the environmental chamber for power battery performance testing of the present invention moving in contact with each other; Figure 8 It is a schematic diagram of the combined structure of the electric slider, the sliding plate and the air supply pipe disclosed in the environmental chamber for power battery performance testing of the present invention; Fig. 9 It is a schematic diagram of the combined structure of the air supply pipe, the hose, the air blowing pipe and the collecting plate disclosed in the environmental chamber for power battery performance testing of the present invention; Fig.10 This is a schematic diagram of the structure inside the sliding plate disclosed in the environmental chamber for power battery performance testing of the present invention.

[0020] Names of the numbers in the figure: 1-environmental testing chamber, 2-placing table, 3-isolation plate, 4-electric push rod one, 5-plug, 6-electric slider, 7-sliding plate, 71-partition, 72-exhaust pipe, 73-connecting pipe, 8-mounting plate, 9-electric roller, 10-rotating plate, 11-side plate, 101-electric push rod two, 102-recursive plate, 111-air supply pipe, 112-hose, 113-air blowing pipe, 121-collecting plate, 201-electric sealing plate, 202-filter net, 203-telescopic spring, 02-ventilation pipe, 701-collecting chamber, 10201-storage chamber, 10202-electric cover, 100-test battery. DETAILED DESCRIPTION

[0021] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0022] Example 1 An environmental chamber for power battery performance testing, such as Figure 1-Figure 10 As shown, it includes an environment detection chamber 1, a placement table 2, an isolation plate 3, an electric push rod 4 and a plug 5; a plurality of placement tables 2 are fixedly connected inside the environment detection chamber 1; the environment detection chamber 1 is connected with a ventilation pipe 02, a temperature sensor is arranged inside the environment detection chamber 1, and the ventilation pipe 02 is connected with an external pump; an isolation plate 3 is fixedly connected inside the environment detection chamber 1; a plurality of electric push rods 4 are fixedly connected to the isolation plate 3; each front and rear pair of two electric push rods 4 telescopic parts are fixedly connected with a plug 5, and the plug 5 is located below the isolation plate 3; It also includes an electric slider 6, a sliding plate 7, a mounting plate 8, an electric roller 9, a rotating plate 10, a side plate 11, an electric push rod 101, a circular plate 102 and an electric sealing plate 201; the environmental detection chamber 1 is slidably connected to a plurality of electric sliders 6 through a slide rail; each of the two electric sliders 6 facing each other are commonly bolted to a sliding plate 7, and the sliding plate 7 is slidably connected to the corresponding placement table 2; each sliding plate 7 is fixedly connected to a mounting plate 8 through a connecting plate, and the mounting plate 8 is located above the sliding plate 7; each mounting plate 8 is rotatably connected to the corresponding sliding plate 7 Six electric rollers 9; each electric roller 9 is fixedly connected to a rotating plate 10, and the rotating plate 10 is set as a heat insulation plate; all the rotating plates 10 located at the front and rear sides are fixedly connected to a side plate 11; the isolation plate 3 is fixedly connected to a plurality of electric push rods 101; the telescopic parts of each four adjacent electric push rods 101 are commonly fixedly connected to a circular plate 102, and the plug 5 is in contact with the middle of the circular plate 102, and an industrial infrared sensor is set on the circular plate 102; the sliding plate 7 is provided with a collecting chamber 701; the entrance of the collecting chamber 701 is rotatably connected to an electric sealing plate 201.

[0023] The upper surface of the sliding plate 7 is arranged to be inclined downward toward the electric sealing plate 201 on all sides, so that the electrolyte falling on the upper surface of the sliding plate 7 can flow toward the electric sealing plate 201 and finally fall into the collecting chamber 701 for collection.

[0024] It also includes an air supply pipe 111, a hose 112, an air blowing pipe 113, a partition 71, an exhaust pipe 72 and a connecting pipe 73; a flame sensor is also provided on the circular plate 102; each connecting plate on each sliding plate 7 is fixedly connected to an air supply pipe 111, and each air supply pipe 111 is connected to an external pump through a connecting pipeline, and the connecting pipeline is a telescopic pipe; each air supply pipe 111 is connected to a plurality of hoses 112; each rotating plate 10 is fixedly connected to a plurality of air blowing pipes 113, and the air blowing pipes 113 are connected to the hoses 112; each collecting chamber 701 of each sliding plate 7 is fixedly connected to a partition 71, and the partition 71 is connected to the sliding plate An exhaust channel is formed on the top wall of the environment detection chamber 7, and the electric sealing plate 201 is in contact with the partition plate 71; each sliding plate 7 is connected to an exhaust pipe 72, the exhaust pipe 72 is connected to the exhaust channel formed in the sliding plate 7, an electric-controlled valve is arranged in the exhaust pipe 72, and the exhaust pipe 72 is arranged as a telescopic pipe; except for the exhaust pipe 72 located on the leftmost and rightmost sides of the environment detection chamber 1, each two adjacent exhaust pipes 72 are connected to a connecting pipe 73, the connecting pipe 73 passes through the environment detection chamber 1 and is connected with the external suction mechanism, and the exhaust pipes 72 located on the leftmost and rightmost sides of the environment detection chamber 1 pass through the environment detection chamber 1 and are directly connected with the external suction mechanism.

[0025] Rubber strips are provided at the edges of the rotating plate 10, and a sealing strip is provided at the bottom of the circular plate 102. After the rotating plate 10 rotates, the adjacent rotating plates 10 are tightly fitted through the rubber strips, and the circular plate 102 moves down and fits tightly with the rotating plate 10, isolating the test battery 100 from the high temperature environment inside the environmental detection chamber 1.

[0026] A storage cavity 10201 is provided inside the circular plate 102, and an electric cover 10202 is rotatably connected to the lower side of the storage cavity 10201. By storing dry powder in the storage cavity 10201, when a fire is detected, the dry powder can be sprinkled to extinguish the fire in time, thereby avoiding continuous fire and explosion.

[0027] It also includes a collecting plate 121; each rotating plate 10 is rotatably connected to a plurality of collecting plates 121 through a torsion spring, the collecting plates 121 are arranged to be tilted downward, a through hole is opened on the collecting plates 121, and the collecting plates 121 are arranged to be made of rubber material, and the sliding plate 7 and the rotating plate 10 after rotation are repeatedly moved, which can drive the collecting plates 121 to swing repeatedly, causing the rotating plate 10 to shake, and the dry powder attached to the rotating plate 10 to be shaken off, so as to facilitate subsequent cleaning.

[0028] The air blowing pipe 113 is arranged below the collecting plate 121 and tilted upward. The dry powder dropped on the collecting plate 121 can be blown directly toward the surface of the test battery 100 through the air blowing pipe 113, so that the dry powder can directly cover the surface of the test battery 100, thereby improving the fire extinguishing effect.

[0029] The end of the collecting plate 121 is arranged in an arc shape, so that more fallen dry powder can be collected on the collecting plate 121, increasing the amount of dry powder blown onto the battery surface and improving the fire extinguishing effect.

[0030] During operation, the environmental detection chamber 1 is opened manually, and then the test battery 100 is placed on the placement table 2, with the interface of the test battery 100 facing vertically upward and aligned with the plug 5, and then the electric push rod 4 is controlled to drive the plug 5 to move downward, so that the plug 5 moves down and connects with the interface of the test battery 100, and is connected to the test battery 100 through the plug 5, and the test battery 100 is repeatedly charged and discharged. In the same way, multiple test batteries 100 are placed in the environmental detection chamber 1 in turn, and then the environmental detection chamber 1 is manually closed again, and the external pump is controlled to transport hot air into the environmental detection chamber 1 through the ventilation pipe 02, and the temperature inside the environmental detection chamber 1 is monitored by the temperature sensor, so that the inside of the environmental detection chamber 1 is in a high temperature state of 70-80 degrees, so as to simulate the charging and discharging performance of the test battery 100 working in a high temperature environment. After the test of the battery is completed, the environmental detection chamber 1 is opened again, and the electric push rod 4 is controlled to drive the plug 5 to move and reset and disconnect, and continue the test of the charging and discharging performance of the next batch of batteries.

[0031] However, considering that under high temperature environment, the battery is prone to continuous expansion and damage, the electrolyte inside the battery is sprayed out and splashed on the inner wall of the environmental chamber and the surface of other test batteries 100. The splashing of electrolyte on other battery surfaces will change the temperature distribution of the battery and affect the test results of other batteries; therefore, after the test battery 100 is manually placed on the placement table 2, the electric slider 6 is controlled to drive the two sliding plates 7 and other connected parts to move toward the corresponding placement table 2, and the sliding plates 7 drive the rotating plates 10 to move toward the left side or right side of the test battery 100 respectively. When the rotating plates 10 are in contact with the side surfaces of the test battery 100, the movement of the electric slider 6 is stopped. At this time, the rotating plates 10 on both sides of the corresponding placement table 2 clamp and fix the test battery 100 thereon, and then the plug 5 is controlled to move and connect with the interface of the test battery 100. It should be noted that initially, the rotating The plate 10 is perpendicular to the left side or right side of the test battery 100, and there is a gap between the rotating plate 10 and the test battery 100 to prevent the rotating plate 10 from affecting the placement of the test battery 100; the test battery 100 is clamped and fixed by the rotating plate 10 to improve the stability of the detection process; and in the process of testing the charging and discharging performance of the test battery 100, the surface of the test battery 100 is monitored by the industrial infrared sensor arranged at the bottom of the circular plate 102. When the industrial infrared sensor detects that the surface of the test battery 100 is swollen, it indicates that the test battery 100 is about to be damaged and the electrolyte is sprayed. At this time, the electric push rod 4 is quickly controlled to drive the plug 5 to separate from the test battery 100, and the electric slider 6 is controlled to drive the sliding plate 7 and the rotating plate 10 to move, so that the rotating plate 10 is separated from the test battery 100, and during the separation process, the electric roller 9 is synchronously controlled to drive the rotating plate 10 to rotate 90 degrees. Figure 5As shown, the rotating plate 10 rotates and contacts with the adjacent rotating plates 10, so that all the rotating plates 10 on the same sliding plate 7 form a complete flat plate together, and the side plates 11 on the rotating plate 10 contact with other side plates 11. When the rotating plate 10 completes its rotation, the electric push rod 101 is controlled at the same time to drive the circular plate 102 to move downward, so that the circular plate 102 moves downward and contacts with the mounting plate 8, the side plates 11 and the upper surface of the test battery 100. At this time, the circular plate 102 covers the top of the test battery 100, and the circular plate 102, the rotating plate 10 and the side plates 11 surround the test battery 100 to form an enclosed space. The rotating plate 10 rotates and the side plates 11 surround the test battery 100 on all sides, and the covering of the circular plate 102 is coordinated to perform preventive protection operations on the swollen test battery 100, so that the test battery 100 is in the test process. When expansion and damage occur and the electrolyte inside the test battery 100 is ejected, the ejected electrolyte is intercepted and shielded by the rotation of the rotating plate 10 and the side plate 11 and the circular plate 102, so that the electrolyte will not splash around in the environmental detection chamber 1 to the surface of other test batteries 100, affecting the test of the charging and discharging performance of other batteries; and when the rotating plate 10 surrounds the test battery 100, the electric sealing plate 201 on the corresponding sliding plate 7 is controlled to rotate downward, and the collecting chamber 701 is opened, and the electrolyte splashed on the rotating plate 10 and the side plate 11 flows downward and flows into the collecting chamber 701 of the sliding plate 7, and the electrolyte splashed on the sliding plate 7 flows into the collecting chamber 701 along the inclined surface for collection; it should be noted that the parts in contact with the splashed electrolyte in the present invention are all treated with anti-corrosion, such as the sliding plate 7, the rotating plate 10, the side plate 11 and the electric sealing plate 201.

[0032] In addition, when the test battery 100 is surrounded by the rotating plate 10, the test battery 100 and the rotating plate 10 are still in a high temperature state. The continuous high temperature will intensify the internal reaction of the battery, and then a fire will occur. When the test is completed later, the battery needs to be cooled down for easy removal. The existing method is usually to directly cool down the environmental detection chamber 1, but direct cooling will affect the detection of other test batteries 100 and reduce the temperature in the entire environmental detection chamber 1. When the charging and discharging performance of the next batch of batteries is tested later, the entire environmental detection chamber 1 needs to be heated up again, resulting in energy waste. Therefore, when the circular plate 102, the rotating plate 10 and the side plate 11 surround the test battery 100 to form an enclosed space, rubber strips are provided at the edges of the rotating plate 10, and a sealing strip is provided at the bottom of the circular plate 102. 10 is tightly fitted with the rubber strip, and the circular plate 102 moves down and fits tightly with the rotating plate 10, so as to separate the test battery 100 from the high temperature environment inside the environmental detection chamber 1; then the electric control valve in the exhaust pipe 72 is controlled to open, and the external pump is controlled to blow cold air into the surrounding space through the air supply pipe 111, the hose 112 and the blowing pipe 113 in sequence, and the high-temperature gas in the surrounding space is blown by the blowing pipe 113 and discharged to the outside from the exhaust pipe 72, so that the expanding test battery 100 can be quickly cooled down, reducing the possibility of fire and explosion when the test battery 100 expands, and only the formed surrounding space is cooled down, and the environmental detection chamber 1 is still in a high temperature state, ensuring the normal testing of other test batteries 100, and reducing the energy consumption of the environmental detection chamber 1 to reheat during the subsequent battery charging and discharging performance test.

[0033] At the same time, it is taken into consideration that even if the swollen test battery 100 can be cooled down quickly, during the cooling process, the inside of the test battery 100 is still reacting violently, and there is still a possibility that the test battery 100 will catch fire, and thus it is easy to explode; therefore, during the cooling process of the air blowing pipe 113, when the flame sensor at the bottom of the circular plate 102 detects that the test battery 100 is on fire, the electric cover 10202 at the bottom of the circular plate 102 is controlled to rotate and open the storage chamber 10201, so that the dry powder stored in the storage chamber 10201 falls downward and falls between the test battery 100 and the rotated rotating plate 10, and the test battery 100 that has caught fire is promptly extinguished by the dry powder, thereby preventing the test battery 100 from continuing to catch fire and causing a more serious explosion.

[0034] At the same time, it is considered that when the dry powder falls downward from between the test battery 100 and the rotating plate 10, a large amount of dry powder falls directly downward and does not contact the surface of the test battery 100, resulting in a poor fire extinguishing effect of the dry powder; therefore, a downwardly inclined collecting plate 121 is provided on the surface of the rotating plate 10, and when the dry powder falls downward, the collecting plate 121 guides the falling dry powder so that the dry powder falls toward the surface of the test battery 100, thereby increasing the contact between the dry powder and the surface of the test battery 100, improving the fire extinguishing effect, and controlling the dry powder while it falls. The electric control valve in the exhaust pipe 72 is temporarily closed, so that the enclosed space formed by the circular plate 102, the rotating plate 10 and the side plate 11 is in a closed state, and then the air blowing pipe 113 is controlled to blow air, and the inert gas is blown out. The air blowing pipe 113 is arranged below the collecting plate 121 and is arranged to be inclined upward. The air blowing pipe 113 can blow the dry powder dropped on the collecting plate 121 through the through hole on the collecting plate 121, so that the dry powder floats around in the enclosed space formed, and while the air blowing pipe 113 is blowing, the left and right sides of the test battery 100 are controlled to be closed. The electric sliders 6 on the side and right sides respectively drive the corresponding sliding plates 7 and rotating plates 10, as well as other connected parts to repeatedly move toward and away from each other. When the rotating plates 10 on the left and right sides of the test battery 100 move toward each other after being rotated, the rotating plates 10 move and compress the space between the rotating plates 10 and the test battery 100, so that the dry powder floating between the rotating plates 10 and the test battery 100 is pushed by the rotating plates 10 to contact the surface of the test battery 100, and the floating dry powder is repeatedly pushed by the repeated movement of the rotating plates 10, thereby increasing the dry powder content. The dry powder is in contact with the surface of the test battery 100, and it is convenient to push the dry powder into the damaged part of the test battery 100, thereby improving the overall fire extinguishing effect; and the sprayed electrolyte can be absorbed by the falling dry powder liquid, and the collecting plate 121 is set to be made of rubber material. When the air pipe 113 blows air, the airflow will also blow the collecting plate 121, causing the collecting plate 121 to shake, so that the collecting plate 121 can push the dry powder thereon upward, and cooperate with the airflow blown out by the air pipe 113, which is conducive to making the dry powder float around in the formed enclosed space.

[0035] After the protective treatment of the test battery 100 is completed, the collection chamber 701 is opened by controlling the electric sealing plate 201 to rotate, so that the outflowing electrolyte and the used dry powder can fall into the collection chamber 701 for collection.

[0036] Example 2 On the basis of Example 1, Fig.10 As shown, a filter screen 202 is also included, and the inner top wall of the sliding plate 7 and the partition plate 71 are connected to the filter screen 202.

[0037] It also includes telescopic springs 203; the inner top wall of the sliding plate 7 and the partition 71 are slidably connected to the filter screen 202; the filter screen 202 is fixedly connected with a plurality of telescopic springs 203, and all the telescopic springs 203 are fixedly connected to the partition 71.

[0038] On the basis of the above-mentioned embodiment 1, during the exhaust process of the exhaust pipe 72, part of the dry powder will also be discharged through the exhaust pipe 72, so that the dry powder is discharged to the outside and affects the surrounding environment. Therefore, a filter screen 202 is arranged at the exhaust passage, and the exhausted gas can be filtered through the filter screen 202, and only the dry powder is filtered out to prevent it from being discharged to the outside with the gas and affecting the surrounding environment; at the same time, the filter screen 202 is connected to the partition 71 through the telescopic spring 203. During the exhaust process, the blowing pipe 113 is controlled to perform intermittent blowing, so that the gas is intermittently discharged through the filter screen 202. The intermittent gas can drive the filter screen 202 to move. The filter screen 202 will shake under the action of the telescopic spring 203, and the dry powder attached to the surface of the filter screen 202 will be shaken off to prevent the filter screen 202 from being blocked when it is continuously used.

[0039] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An environmental chamber for power battery performance testing, comprising an environmental testing chamber (1), a placement table (2), an isolation plate (3), an electric push rod (4) and a plug (5); a plurality of placement tables (2) are fixedly connected inside the environmental testing chamber (1); a ventilation pipe (02) is connected to the environmental testing chamber (1), a temperature sensor is arranged inside the environmental testing chamber (1), and the ventilation pipe (02) is connected to an external pump; an isolation plate (3) is fixedly connected inside the environmental testing chamber (1); a plurality of electric push rods (4) are fixedly connected to the isolation plate (3); the telescopic parts of two electric push rods (4) in each front-to-back pair are commonly fixedly connected to a plug (5) connected to a test battery (100), and the plug (5) is located below the isolation plate (3); the characteristic is that The environmental detection chamber (1) also includes an electric slider (6), a sliding plate (7), a mounting plate (8), an electric roller (9), a rotating plate (10), a side plate (11), a second electric push rod (101), a circular plate (102) and an electric sealing plate (201); the environmental detection chamber (1) is slidably connected to a plurality of electric sliders (6) via a slide rail; each of two electric sliders (6) facing each other front and back are detachably connected to a sliding plate (7), and the sliding plate (7) is slidably connected to a corresponding placement table (2); each sliding plate (7) is fixedly connected to a mounting plate (8) via a connecting plate, and the mounting plate (8) is located above the sliding plate (7); each mounting plate (8) and the corresponding sliding plate (7) rotate together. A plurality of electric rollers (9) are rotatably connected; each electric roller (9) is fixedly connected to a rotating plate (10), and the rotating plate (10) is set as a heat insulation plate; all the rotating plates (10) located at the front and rear sides are fixedly connected to a side plate (11); the isolation plate (3) is fixedly connected to a plurality of electric push rods (101); the telescopic parts of each of the four adjacent electric push rods (101) are commonly fixedly connected to a circular plate (102), and the plug (5) is in contact with the middle of the circular plate (102), and an industrial infrared sensor is arranged on the circular plate (102); the sliding plate (7) is provided with a collecting chamber (701); and the entrance of the collecting chamber (701) is rotatably connected to an electric sealing plate (201).

2. The environmental chamber for power battery performance testing according to claim 1 is characterized in that: The upper surface of the sliding plate (7) is arranged to be inclined downward toward the electric sealing plate (201) on all sides.

3. The environmental chamber for power battery performance testing according to claim 1 is characterized in that: The invention also comprises an air supply pipe (111), a hose (112), an air blowing pipe (113), a partition (71), an exhaust pipe (72) and a connecting pipe (73); a flame sensor is also arranged on the circular plate (102); an air supply pipe (111) is fixedly connected to the connecting plate on each sliding plate (7); each air supply pipe (111) is connected to an external pump through a connecting pipe, and the connecting pipe is a telescopic pipe; each air supply pipe (111) is connected to a plurality of hoses (112); each rotating plate (10) is fixedly connected to a plurality of air blowing pipes (113), and the air blowing pipes (113) are connected to the hoses (112); a partition (71) is fixedly connected to the collecting chamber (701) of each sliding plate (7), and the partition (71) is connected to the sliding plate (701). An exhaust passage is formed on the inner top wall of the movable plate (7), and the electric sealing plate (201) contacts the partition plate (71); each sliding plate (7) is connected to an exhaust pipe (72), the exhaust pipe (72) is connected to the exhaust passage formed in the sliding plate (7), an electric control valve is arranged in the exhaust pipe (72), and the exhaust pipe (72) is configured as a telescopic pipe; except for the exhaust pipe (72) located at the leftmost and rightmost sides of the environment detection chamber (1), each two adjacent exhaust pipes (72) are connected to a connecting pipe (73), the connecting pipe (73) passes through the environment detection chamber (1) and is connected to an external suction mechanism, and the exhaust pipes (72) located at the leftmost and rightmost sides of the environment detection chamber (1) pass through the environment detection chamber (1) and are directly connected to the external suction mechanism.

4. The environmental chamber for power battery performance testing according to claim 3 is characterized in that: Rubber strips are provided at the edges of the rotating plate (10), and a sealing strip is provided at the bottom of the circular plate (102).

5. The environmental chamber for power battery performance testing according to claim 4 is characterized in that: A storage cavity (10201) is provided inside the circular plate (102), and an electric cover plate (10202) is rotatably connected to the lower side of the storage cavity (10201).

6. The environmental chamber for power battery performance testing according to claim 1, characterized in that: It also includes a collecting plate (121); each rotating plate (10) is rotatably connected to a plurality of collecting plates (121) via a torsion spring; the collecting plates (121) are arranged to be inclined downward; a through hole is provided on the collecting plates (121); and the collecting plates (121) are arranged to be made of rubber material.

7. The environmental chamber for power battery performance testing according to claim 6, characterized in that: The air blowing pipe (113) is arranged below the collecting plate (121) and is arranged to be inclined upward.

8. An environmental chamber for power battery performance testing according to any one of claims 6-7, characterized in that: The end of the collecting plate (121) is arranged in an arc shape.

9. The environmental chamber for power battery performance testing according to claim 1, characterized in that: It also includes a filter screen (202), and the inner top wall of the sliding plate (7) and the partition plate (71) are connected together with the filter screen (202) for preventing the discharge of dry powder.

10. The environmental chamber for power battery performance testing according to claim 9, characterized in that: It also includes a telescopic spring (203); the inner top wall of the sliding plate (7) and the partition (71) are slidably connected to the filter screen (202); the filter screen (202) is fixedly connected to a plurality of telescopic springs (203), and all the telescopic springs (203) are fixedly connected to the partition (71).

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