Emergency power supply aging test equipment and test method thereof

Abstract

The present invention relates to the field of power supply testing technology, and in particular to an emergency power supply aging test device, comprising a test cabinet body, wherein the rear side wall of each test chamber of the test cabinet body is provided with an ejection port, a seesaw is provided at the bottom of the test chamber, a sleeve is fixedly installed at one end of the seesaw, a hollow tube is coaxially inserted in the sleeve, a clamp is fixedly installed at the bottom of the seesaw, a socket is provided through the clamp, a plug rod is inserted into the socket, a first clamp is provided on one side of the seesaw, the plug rod is fixedly connected to the first clamp, a second clamp is provided on the other side of the seesaw, and a compression spring is connected between the bottom of the seesaw and the bottom of the test chamber. The present invention is provided with the first clamp, the second clamp, the seesaw and other structures. During the power supply aging test, if the emergency power supply overheats, the seesaw loses its limit, the compression spring will suddenly release, and the seesaw will be pushed upward, and the seesaw will eject the emergency power supply thereon through the ejection port, thereby preventing the emergency power supply from burning in the test chamber and causing excessive losses.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply testing, and in particular to emergency power supply aging testing equipment and a testing method thereof. Background Art

[0002] Existing equipment for aging testing emergency power supplies primarily consists of a test cabinet equipped with multiple test chambers, each equipped with a charge-discharge test system. After the emergency power supply is placed in a test chamber and connected to the charge-discharge test system, the charge-discharge test system is activated to perform charge-discharge tests on the emergency power supply, thereby achieving aging testing. Emergency power supplies contain built-in lithium batteries, which pose a risk of explosion during the charge and discharge process. During aging testing, as the external ambient temperature rises, chemical reactions occur within the battery, increasing internal pressure and causing changes in the volume of the battery's chemical mixture. If the sudden change in volume exceeds the fixed volume capacity of the battery housing, the battery housing can explode due to the internal pressure. Some test cabinets also create a high-temperature environment within the test chamber to test its stability at a certain high temperature. Due to the special properties and failure rate of lithium batteries, some batteries are likely to combust and explode during high-temperature aging tests. If an emergency power supply ignites, if the emergency power supply within the test chamber is not promptly and effectively treated, the fire will spread and burn the emergency power supplies in the remaining test chambers of the test cabinet. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem in the prior art that power supply explosion during aging test process is likely to cause great losses, and to propose an emergency power supply aging test device.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The cam is secured to the bottom of the test chamber and has a spring that allows the cam to be released when the test chamber is in a closed position.

[0006] Preferably, a storage body is fixedly mounted on the inner wall of the test chamber adjacent to the second clamping plate, the storage body being cylindrical in shape as a whole, the central axis of the storage body being arranged perpendicular to the inner wall of the test chamber, a storage cavity being coaxially opened in the storage body, the storage cavity being cylindrical, a rotating shaft being coaxially mounted in the storage cavity, a storage cylinder being fixedly mounted on the rotating shaft, the rotating shaft extending outwardly from one end close to the second clamping plate and penetrating the storage body, the bottom end of the storage cylinder being sealed and fixedly connected to the rotating shaft, the storage cylinder storing a dilute hydrochloric acid solution, and the storage cavity storing a sodium silicate solution;

[0007] A nozzle is provided below the storage body, and the nozzle is arranged parallel to the central axis of the storage body. An oblique tube is provided on the nozzle, and the oblique tube is connected to the storage chamber. The oblique tube is inclined toward the rear end of the nozzle, and the front end of the nozzle extends outwardly outside the storage body. A sealing plug is inserted at the front end outlet of the nozzle, and the rear end of the nozzle is connected to a compressed gas supply module.

[0008] Preferably, a gear is coaxially fixedly mounted on the end of the rotating shaft outside the storage body, and a rack meshing with the gear is provided on one side of the gear. The rack is arc-shaped and concentrically distributed with the hollow tube, and the rack is fixedly connected to the seesaw.

[0009] Preferably, a sealing plate is fixedly mounted on the inner wall of the upper portion of the storage cavity. The sealing plate is arc-shaped and coaxially distributed with the storage cavity. The top end of the storage tube is adapted to the shape of the sealing plate and fits in contact with the sealing plate.

[0010] A first injection hole is vertically provided on the sealing plate, and a second injection hole communicating with the storage cavity is provided on the upper portion of the storage body.

[0011] Preferably, the front end outlet of the nozzle is arranged toward the top of the test chamber, and a check valve is built into the rear end of the nozzle, and the check valve is used to prevent the liquid in the nozzle from entering the compressed gas supply module.

[0012] Preferably, the compressed gas supply module includes a docking cavity, an air outlet, and an air outlet pipe. One end of the hollow tube is sealed, and the other end of the hollow tube is connected to the compressed gas storage device. An air outlet is provided on the inner wall of the hollow tube covered by the sleeve, and a docking cavity corresponding to the air outlet is provided on the inner wall of the sleeve. The sleeve is provided with an air outlet pipe connected to the docking cavity, and the rear end of the nozzle is connected to the air outlet pipe.

[0013] Preferably, a plurality of magnetic sealing strips are fixed to the inner surface of the outward-opening door, and a plurality of magnetic strips corresponding to the magnetic sealing strips are fixed to the edges around the ejection outlet.

[0014] The present invention also provides an emergency power supply aging test method, the specific method is as follows:

[0015] S1. Press the seesaw downward, so that the seesaw presses the compression spring downward to the lowest position, so that the seesaw is in a horizontal state. At this time, insert the insertion rod into the socket in the clamping block, and then place the emergency power supply to be tested on the seesaw, so that the emergency power supply is clamped by the first clamping plate and the second clamping plate;

[0016] S2. Injecting dilute hydrochloric acid solution into the storage cylinder through the first injection hole, and injecting sodium silicate solution into the bottom of the storage chamber through the second injection hole, and then sealing the first injection hole and the second injection hole;

[0017] S3, connecting the emergency power supply to the built-in charge and discharge test system of the test chamber, and then starting the charge and discharge test system to perform an aging test on the emergency power supply;

[0018] S4. After the test is completed, the emergency power supply is disconnected from the built-in charge and discharge test system of the test chamber, and the emergency power supply is taken out.

[0019] The emergency power supply aging test equipment proposed by the present invention has the following beneficial effects:

[0020] By providing the first clamping plate, the second clamping plate, the seesaw and other structures, during the power aging test, if the emergency power supply overheats, the emergency power supply shell will expand and deform outward under the pressure of the deformed battery cell inside. At this time, the emergency power supply shell will push the first clamping plate outward, and the first clamping plate will drive the insertion rod to disengage from the socket on the card block outward, so that the seesaw loses its limit, and the compression spring will suddenly release, pushing the seesaw upward, and the seesaw will eject the emergency power supply on it through the ejection outlet, thereby preventing the emergency power supply from burning in the test chamber and causing excessive losses;

[0021] A storage body is provided, in which dilute hydrochloric acid solution and sodium silicate solution are stored. When the seesaw is tilted, the seesaw drives the rotating shaft in the storage body to rotate through the transmission mechanism, so that the rotating shaft pours the dilute hydrochloric acid solution stored in the storage cylinder above it into the sodium silicate solution in the storage chamber. The two solutions can quickly produce silicate hydrogel. The silicate hydrogel in the storage chamber will be ejected into the test chamber along with the compressed gas ejected from the nozzle. The ejected silicate hydrogel minimizes the damage to the test cabinet after the emergency power supply explodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of an emergency power supply aging test device proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the front view of the test cabin of the emergency power supply aging test equipment proposed by the present invention;

[0024] Figure 3Schematic diagram of the internal structure of the test chamber of an emergency power supply aging test equipment proposed by the present invention Figure 1 ;

[0025] Figure 4 Schematic diagram of the internal structure of the test chamber of an emergency power supply aging test equipment proposed by the present invention Figure 2 ;

[0026] Figure 5 Schematic diagram of the internal structure of the test chamber of an emergency power supply aging test equipment proposed by the present invention Figure 3 ;

[0027] Figure 6 This is a cross-sectional schematic diagram of a test cabin of an emergency power supply aging test equipment proposed by the present invention;

[0028] Figure 7 This is a schematic diagram of the top view of an emergency power supply aging test device proposed by the present invention;

[0029] Figure 8 for Figure 7 AA surface cross-sectional structural diagram;

[0030] Figure 9 for Figure 8 Schematic diagram of the local structure at A;

[0031] Figure 10 for Figure 7 BB surface cross-sectional structural diagram;

[0032] Figure 11 This is a schematic diagram of the cross-sectional structure of a storage body of an emergency power supply aging test device proposed by the present invention;

[0033] Figure 12 This is a schematic diagram of the connection between the nozzle and the air outlet pipe of an emergency power supply aging test equipment proposed by the present invention;

[0034] Figure 13 This is a schematic diagram of the rack and pinion structure of an emergency power supply aging test device proposed by the present invention;

[0035] Figure 14 This is a schematic diagram of the structure of the air outlet pipe position of an emergency power supply aging test equipment proposed by the present invention.

[0036] In the figure: 1. Test cabinet body; 2. Test cabin; 3. Ejection port; 4. Outward-opening door; 5. Seesaw; 6. Sleeve; 7. Hollow tube; 8. Block; 9. Socket; 10. Insert rod; 11. First splint; 12. Second splint; 13. Compression spring; 14. Storage body; 15. Storage cavity; 16. Rotating shaft; 17. Storage cylinder; 18. Nozzle; 19. Oblique tube; 20. Sealing plug; 21. Gear; 22. Rack; 23. Sealing plate; 24. First injection hole; 25. Second injection hole; 26. Docking cavity; 27. Air outlet; 28. Air outlet pipe. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Example 1: Reference Figure 1-10 , an emergency power supply aging test equipment, including a test cabinet body 1, a pop-up outlet 3 is opened on the rear side wall of each test cabin 2 of the test cabinet body 1, and an outward-opening door 4 is installed on the pop-up outlet 3. The top inner wall of the outward-opening door 4 is rotatably installed with a horizontal axis, which is arranged parallel to the length direction of the test cabin 2 and is fixedly connected to the test cabin 2. The horizontal axis makes the outward-opening door 4 in a closed state when there is no external force. When the rocker 5 ejects the power supply from the pop-up outlet, the impact of the power supply will cause the outward-opening door 4 to flip upward around the horizontal axis, thereby realizing the automatic opening function. A seesaw 5 is provided at the bottom of the test cabin 2, and the seesaw 5 is arranged parallel to the width direction of the test cabin 2. A sleeve 6 is fixedly installed on one end of the seesaw 5 close to the ejection outlet 3, and a hollow tube 7 is coaxially inserted in the sleeve 6. The hollow tube 7 is rotatably connected to the test cabin 2, and a clamping block 8 is fixedly installed on the lower part of the end of the seesaw 5 away from the ejection outlet 3. A socket 9 is opened on the clamping block 8 along the length direction parallel to the test cabin 2, and a rod 10 is inserted in the socket 9. A first splint 11 is provided on one side of the seesaw 5, and the first splint is telescopically connected to the inner wall of the test cabin 2 along the length direction of the test cabin 2. The rod 10 is fixedly connected to the first splint 11, and a second splint 12 is provided on the other side of the seesaw 5. The second splint 12 is fixedly connected to the seesaw 5, and the bottom of the seesaw 5 is telescopically connected to the bottom of the test cabin 2 through a compression spring 13. By providing a first clamping plate and a second clamping plate 12, the emergency power supply is clamped by the two clamping plates. If the emergency power supply is deformed, the first clamping plate will be squeezed, thereby driving the plug rod 10 connected to it to move outward, so that the plug rod 10 loses its limiting effect on the block 8, and the compression spring 13 in the compressed state will be suddenly released to push the seesaw 5 to tilt upward around the hollow tube 7, so that the seesaw 5 can eject the emergency power supply on it toward the ejection outlet.

[0039] A storage body 14 is fixedly mounted on the inner wall of the test chamber 2 on the adjacent side of the second plywood 12. The storage body 14 is cylindrical in shape as a whole, and the central axis of the storage body 14 is arranged perpendicular to the inner wall of the test chamber 2. A storage cavity 15 is coaxially opened in the storage body 14. The storage cavity 15 is cylindrical in shape, and a rotating shaft 16 is coaxially mounted in the storage cavity 15. A storage cylinder 17 is fixedly mounted on the rotating shaft 16. The rotating shaft 16 extends outward from one end near the second plywood 12 and penetrates the storage body 14. The bottom end of the storage cylinder 17 is sealed and fixedly connected to the rotating shaft 16. The storage cylinder 17 stores a dilute hydrochloric acid solution, and the storage cavity 15 stores a sodium silicate solution.

[0040] A nozzle 18 is disposed below the storage body 14 and is arranged parallel to the central axis of the storage body 14. An inclined pipe 19 is disposed on the nozzle 18 and communicates with the storage chamber 15. The inclined pipe 19 is inclined toward the rear end of the nozzle 18 and contains a one-way valve that prevents gas within the nozzle 18 from entering the storage chamber 15. The front end of the nozzle 18 extends outwardly outside the storage body 14. A sealing plug 20 is inserted at the front end outlet of the nozzle 18. The rear end of the nozzle 18 is connected to a compressed gas supply module. Because the sealing plug 20 is inserted at the front end of the nozzle 18, before compressed gas is injected into the nozzle 18, the sodium silicate solution entering the nozzle 18 exerts little pressure on the sealing plug 20, preventing the sealing cap from being dislodged. Once compressed gas is injected into the nozzle 18, the significant pressure of the compressed gas dislodges the sealing cap, allowing the nozzle 18 to eject the gas-liquid mixture.

[0041] A gear 21 is coaxially fixedly mounted on the end of the rotating shaft 16 outside the storage body 14. A rack 22 meshing with the gear 21 is provided on one side of the gear 21. The rack 22 is arc-shaped and concentrically distributed with the hollow tube 7. The rack 22 is fixedly connected to the seesaw 5. The reason why the rotating shaft 16 is connected to the seesaw 5 through the gear 21 and rack 22 is that the rotating shaft 16 drives the storage cylinder 17 to rotate to pour the dilute hydrochloric acid solution in the storage cylinder 17 into the sodium silicate solution. In the process, the storage cylinder 17 is required to act as a stirrer to repeatedly stir the mixed solution so as to quickly mix the two solutions evenly to produce a colloid. After the seesaw 5 bounces up, due to the release of the elastic force of the compression spring 13 for a period of time, it will first be in a reciprocating telescopic state to release the energy, and finally it will return to stability. Only when the compression spring 13 returns to stability, the seesaw 5 will no longer swing. Before the seesaw 5 is stable, the seesaw 5 will drive the rotating shaft 16 to rotate back and forth through the gear 21 and rack 22, so that the rotating shaft 16 can drive the storage cylinder 17 to repeatedly stir the solution, so that the solution can react quickly to produce a colloid.

[0042] A sealing plate 23 is fixedly mounted on the upper inner wall of the storage chamber 15. The sealing plate 23 is arc-shaped and coaxially distributed with the storage chamber 15. The top of the storage cylinder 17 is adapted to the shape of the sealing plate 23 and fits closely to the sealing plate 23.

[0043] A first injection hole 24 is vertically defined through the sealing plate 23, extending upward through the inner wall of the storage chamber 15. A second injection hole 25 is provided on the upper portion of the storage body 14, communicating with the storage chamber 15. Because the dilute hydrochloric acid solution stored in the storage barrel 17 is highly volatile, the arc-shaped sealing plate 23 is provided to ensure that the storage barrel 17 maintains a good seal when storing the dilute hydrochloric acid. When the storage barrel 17 rotates to its uppermost position following the rotational shaft 16, the top end of the storage barrel 17 tightly contacts the sealing plate 23, ensuring that the dilute hydrochloric acid solution stored in the storage barrel 17 is effectively sealed.

[0044] The front end outlet of the nozzle 18 is arranged toward the top of the test chamber 2 , and a check valve is built into the rear end of the nozzle 18 , which is used to prevent the liquid in the nozzle 18 from entering the compressed gas supply module.

[0045] A plurality of magnetic sealing strips are fixed on the inner surface of the outward opening door 4 , and a plurality of magnetic strips corresponding to the magnetic sealing strips are fixed on the edges around the ejection outlet 3 .

[0046] The present invention also provides an emergency power supply aging test method, comprising the following steps:

[0047] S1. Press the seesaw 5 downward, and the seesaw 5 presses the compression spring 13 downward to the lowest position, so that the seesaw 5 is in a horizontal state. At this time, insert the insertion rod 10 into the socket 9 in the clamping block 8, and then place the emergency power supply to be tested on the seesaw 5, and clamp the emergency power supply between the first clamping plate 11 and the second clamping plate 12;

[0048] S2. Inject dilute hydrochloric acid solution into the storage cylinder 17 through the first injection hole 24, and inject sodium silicate solution into the bottom of the storage chamber 15 through the second injection hole 25, and then seal the first injection hole 24 and the second injection hole 25;

[0049] S3, connecting the emergency power supply to the built-in charge and discharge test system of test chamber 2, and then starting the charge and discharge test system to perform an aging test on the emergency power supply;

[0050] S4. After the test is completed, disconnect the emergency power supply from the built-in charge and discharge test system of test chamber 2 and unplug the emergency power supply.

[0051] Example 2: Reference Figure 11-14As another preferred embodiment of the present invention, the difference from Example 1 is that the compressed gas supply module includes a docking cavity 26, an air outlet 27, and an air outlet pipe 28. One end of the hollow tube 7 is sealed, and the other end of the hollow tube 7 is connected to the compressed gas storage device. The air outlet 27 is provided on the inner wall of the hollow tube 7 covered by the sleeve 6, and the docking cavity 26 is provided corresponding to the air outlet 27 provided on the inner wall of the sleeve 6. The sleeve 6 is provided with an air outlet pipe 28 connected to the docking cavity 26, and the rear end of the nozzle 18 is connected to the air outlet pipe 28. The compressed gas supply module is integrated with the seesaw 5 and the hollow tube 7, so that after the seesaw 5 bounces up, due to the release of the elastic force of the compression spring 13 for a period of time, it will first be in a reciprocating telescopic state to release all the energy, and finally it will return to stability. Only when the compression spring 13 evaporates and stabilizes, the seesaw 5 no longer swings, and the docking cavity 26 on the sleeve 6 connected to the seesaw 5 will be aligned with the air outlet 27. Only then can the hollow tube 7 be connected to the nozzle 18. In this way, after the seesaw 5 bounces up, the hollow tube 7 will not be immediately connected to the nozzle 18, so that the nozzle 18 will not immediately inject compressed gas to spray the solution in the storage body 14, so that the solution in the storage can be fully mixed.

[0052] The overall workflow of the present invention is as follows:

[0053] S1. During the power aging test, if the emergency power supply overheats, the shell of the emergency power supply will expand and deform outward under the pressure of the deformed battery cell inside. At this time, the shell of the emergency power supply will push the first clamping plate 11 outward, and the first clamping plate 11 will drive the insertion rod 10 to disengage from the socket 9 on the block 8. At this time, the seesaw 5 loses its limit, and the compression spring 13 will suddenly release, pushing the seesaw 5 upward. The seesaw 5 ejects the emergency power supply on it through the ejection outlet 3. A fire water pool can be set in advance on the ground below the ejection outlet 3 to use the large amount of liquid in the fire water pool to slow down the heat release of the emergency power supply.

[0054] In order to avoid explosion after deformation of the emergency power supply and ignition of the remaining objects in the test chamber 2, during the process of the seesaw 5 being tilted, on the one hand, the seesaw 5 will drive the rack 22 to drive the gear 21 to rotate, the gear 21 will drive the shaft 16 to rotate, and the shaft 16 will drive the storage cylinder 17 to swing back and forth. During the swinging process, the storage cylinder 17 will be in an inverted state, and the dilute hydrochloric acid solution stored therein will be poured into the sodium silicate solution in the storage cavity 15 in the storage body 14. The swinging storage cylinder 17 will stir the mixed liquid and accelerate the reaction of the two liquids so that the two solutions can quickly produce silicate hydrogel; on the other hand, the seesaw 5 will drive the sleeve 6 to rotate so that the ground alignment cavity on the sleeve 6 is aligned with the air outlet 27 on the hollow tube 7 At this time, the compressed gas storage device connected to the hollow tube 7 will inject the compressed gas into the aiming cavity through the hollow tube 7, and then inject it into the nozzle 18 through the outlet pipe 28. The silicate hydrogel in the storage cavity 15 will enter the nozzle 18 through the inclined tube 19, and be ejected into the test chamber 2 along with the compressed gas ejected from the nozzle 18. The ejected silicate hydrogel will decompose at high temperatures, releasing water vapor and carbon dioxide. These gases can isolate the flame from the air, thereby preventing the spread of fire in the test chamber 2. In addition, the silica layer formed after the decomposition of the silicate hydrogel can cover the surface of the burning object, forming a protective film to isolate oxygen, thereby achieving a fire prevention effect, thereby minimizing the damage to the test cabinet after the emergency power supply explodes.

[0055] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An emergency power supply aging test device, comprising a test cabinet body (1), characterized in that: Each test chamber (2) of the test cabinet body (1) is provided with an ejection outlet (3) on the rear side wall, and an outward-opening door (4) is installed on the ejection outlet (3). A seesaw (5) is provided at the bottom of the test chamber (2), and the seesaw (5) is arranged parallel to the width direction of the test chamber (2). A sleeve (6) is fixedly installed at one end of the seesaw (5) close to the ejection outlet (3), and a hollow tube (7) is coaxially inserted in the sleeve (6). The hollow tube (7) is rotatably connected to the test chamber (2), and a clamping block (8) is fixedly installed at the lower part of one end of the seesaw (5) away from the ejection outlet (3). ), a socket (9) is provided through the block (8), a plug rod (10) is inserted into the socket (9), a first clamping plate (11) is provided on one side of the seesaw (5), the first clamping plate is telescopically connected to the inner wall of the test chamber (2) along the length direction of the test chamber (2), the plug rod (10) is fixedly connected to the first clamping plate (11), a second clamping plate (12) is provided on the other side of the seesaw (5), the second clamping plate (12) is fixedly connected to the seesaw (5), and the bottom of the seesaw (5) is telescopically connected to the bottom of the test chamber (2) via a compression spring (13); A storage body (14) is fixedly mounted on the inner wall of the test chamber (2) adjacent to the second clamping plate (12), the storage body (14) being cylindrical in shape as a whole, a storage cavity (15) being coaxially opened in the storage body (14), the storage cavity (15) being cylindrical in shape, a rotating shaft (16) being coaxially mounted in the storage cavity (15), a storage cylinder (17) being fixedly mounted on the rotating shaft (16), the rotating shaft (16) extending outwardly from one end close to the second clamping plate (12) and penetrating the storage body (14), the bottom end of the storage cylinder (17) being sealed and fixedly connected to the rotating shaft (16), a dilute hydrochloric acid solution being stored in the storage cylinder (17), and a sodium silicate solution being stored in the storage cavity (15); A nozzle (18) is provided below the storage body (14), and the nozzle (18) is provided in parallel with the central axis of the storage body (14). An oblique pipe (19) is provided on the nozzle (18), and the oblique pipe (19) is communicated with the storage chamber (15). The oblique pipe (19) is inclined toward the rear end of the nozzle (18), and the front end of the nozzle (18) extends outward to the outside of the storage body (14). A sealing plug (20) is inserted into the front end outlet of the nozzle (18), and the rear end of the nozzle (18) is connected to a compressed gas supply module; The compressed gas supply module comprises a docking cavity (26), an air outlet (27), and an air outlet pipe (28); one end of the hollow tube (7) is sealed, and the other end of the hollow tube (7) is connected to a compressed gas storage device; an air outlet (27) is provided on the inner wall of the hollow tube (7) covered by the sleeve (6); a docking cavity (26) is provided corresponding to the air outlet (27) provided on the inner wall of the sleeve (6); an air outlet pipe (28) communicating with the docking cavity (26) is provided on the sleeve (6); and the rear end of the nozzle (18) is connected to the air outlet pipe (28).

2. The emergency power supply aging test equipment according to claim 1, characterized in that: A gear (21) is coaxially fixedly mounted on the end of the rotating shaft (16) outside the storage body (14), and a rack (22) meshing with the gear (21) is provided on one side of the gear (21). The rack (22) is arc-shaped and is concentrically distributed with the hollow tube (7). The rack (22) is fixedly connected to the seesaw (5).

3. The emergency power supply aging test equipment according to claim 1, characterized in that: A sealing plate (23) is fixedly mounted on the inner wall of the upper portion of the storage chamber (15); the sealing plate (23) is arc-shaped and coaxially distributed with the storage chamber (15); the top end of the storage cylinder (17) is adapted to the outer shape of the sealing plate (23) and is in close contact with the sealing plate (23); A first injection hole (24) is vertically penetrated on the sealing plate (23), and a second injection hole (25) communicating with the storage cavity (15) is provided on the upper portion of the storage body (14).

4. The emergency power supply aging test equipment according to claim 1, characterized in that: The front end outlet of the nozzle (18) is arranged toward the upper side of the test chamber (2), and a check valve is built into the rear end of the nozzle (18). The check valve is used to prevent the liquid in the nozzle (18) from entering the compressed gas supply module.

5. The emergency power supply aging test equipment according to claim 1, characterized in that: A plurality of magnetic sealing strips are fixed on the inner surface of the outward-opening door (4), and a plurality of magnetic strips corresponding to the magnetic sealing strips are fixed on the edges around the ejection outlet (3).

6. A method for testing aging of an emergency power supply, characterized in that: The method includes using the emergency power supply aging test device according to claim 3 to perform an aging test on the emergency power supply, and the specific method is as follows: S1. Press the seesaw (5) downward, and the seesaw (5) presses the compression spring (13) downward to the lowest position, so that the seesaw (5) is in a horizontal state. At this time, the insertion rod (10) is inserted into the socket (9) in the clamping block (8), and then the emergency power supply to be tested is placed on the seesaw (5), and the emergency power supply is clamped by the first clamping plate (11) and the second clamping plate (12); S2, injecting a dilute hydrochloric acid solution into the storage cylinder (17) through the first injection hole (24), and injecting a sodium silicate solution into the bottom of the storage chamber (15) through the second injection hole (25), and then sealing the first injection hole (24) and the second injection hole (25); S3, connecting the emergency power supply to the built-in charge and discharge test system of the test chamber (2), and then starting the charge and discharge test system to perform an aging test on the emergency power supply; S4. After the test is completed, the connection between the emergency power supply and the built-in charge and discharge test system of the test chamber (2) is disconnected, and the emergency power supply is taken out.

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