A hydrogen gas replenishing device for hydrogen fuel cell vehicles

Abstract

The present invention discloses a hydrogen gas replenishing device for hydrogen fuel cell vehicles, and relates to the field of new energy technology. The present invention provides a hydrogen gas replenishing device for hydrogen fuel cell vehicles, including a body, the body is fixedly connected to a hydrogen tank, the body is clamped with a connector, the connector is fixedly connected to a mounting shell, the mounting shell is fixedly connected to a limit block, the limit block is slidably connected to a top block, a compression spring is fixed between the top block and the limit block, the top block is fixedly connected to a blocking block, the connector is fixedly connected to a pair of small air pumps, the connector is clamped with a gas storage tank, and the connector is threadedly connected to a threaded cover plate. The present invention uses components such as a blocking block and a small air pump to not only timely block the gas outlet of the mounting shell after the mounting shell is disconnected from the connecting port of the car to avoid leakage of hydrogen remaining in the mounting shell, but also suck the remaining hydrogen into the gas storage tank for recycling, thereby improving the safety and resource utilization of the hydrogen gas replenishing device.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, and in particular to a hydrogen gas replenishing device for a hydrogen fuel cell vehicle. Background Art

[0002] Hydrogen fuel cell vehicles are new energy vehicles that use hydrogen and oxygen to generate electricity through electrochemical reactions to drive electric motors. Compared with traditional internal combustion engine vehicles, hydrogen fuel cell vehicles have the advantages of zero emissions, high efficiency and long driving range. However, due to the high manufacturing costs of hydrogen fuel cells and hydrogen storage systems, hydrogen fuel cell vehicles are difficult to be widely used in real life in the short term.

[0003] Existing hydrogen fuel cell vehicles mainly rely on hydrogen filling stations and the vehicle's own backup hydrogen filling devices when replenishing hydrogen. However, both the hydrogen filling station and the hydrogen filling device rely on an air gun to connect to the vehicle and inject gas. When the hydrogen replenishment is completed and the connection between the air gun and the vehicle is disconnected, it is inevitable that there will be residual hydrogen at the tip of the air gun, and a small amount of hydrogen will leak, which will not only cause a waste of hydrogen resources, but also cause certain safety hazards due to the flammability of hydrogen.

[0004] Based on the above situation, the present invention proposes a hydrogen gas replenishing device for hydrogen fuel cell vehicles with high resource utilization. Summary of the invention

[0005] In order to overcome the disadvantages of the existing hydrogen gas refilling device that after use and disconnection from the vehicle, residual hydrogen will inevitably exist at the gun tip of the air gun, causing a small amount of hydrogen leakage, which will not only cause a waste of hydrogen resources, but also cause certain safety hazards due to the flammability of hydrogen, the present invention provides a hydrogen gas refilling device for hydrogen fuel cell vehicles with high resource utilization.

[0006] A hydrogen gas replenishing device for a hydrogen fuel cell vehicle comprises a body, a hydrogen tank, a connector, a mounting shell, a limit block, a top block, a blocking block, a compression spring, a blocking ring, an air duct, a small air pump, a gas tank and a threaded cover plate, wherein the body is fixedly connected to the hydrogen tank, the body is clamped with a connector, the connector and the hydrogen tank are connected through a pipeline, the connector is fixedly connected to the mounting shell, the mounting shell is fixedly connected to the limit block, the limit block is slidably connected to the top block, a compression spring is fixedly connected between the top block and the limit block, the top block is fixedly connected to the blocking block, the blocking block is contacted and matched with the limit block, the blocking block is fixedly connected to the blocking ring, the blocking ring is slidably connected to the mounting shell, the connector is fixedly connected to a pair of air ducts, the connector is fixedly connected to a pair of small air pumps, the air ducts are connected to the small air pumps, the connector is clamped with the gas tank, one end of the air duct is connected to the mounting shell, the other end of the air duct is connected to the gas tank, and the connector is threadedly connected to the threaded cover plate.

[0007] Preferably, the blocking block is fixedly connected with a sealing rubber ring.

[0008] Preferably, a filling mechanism is also included, which is arranged on the mounting shell. The filling mechanism includes a hollow connecting frame, an expansion plate, a connecting pipe and an extrusion cylinder. The hollow connecting frame is fixed to the mounting shell, the hollow connecting frame is fixedly connected to and connected with the expansion plates that are equidistantly distributed around the circumference, the connector is fixedly connected with a pair of extrusion cylinders, and the hollow connecting frame and the pair of extrusion cylinders are fixedly connected and connected with a connecting pipe.

[0009] Preferably, a sealing mechanism is also included, which is arranged on the mounting shell. The sealing mechanism includes a mounting plate frame, a flow guide tube and an expansion ring. The mounting plate frame is fixed to the mounting shell. The mounting plate frame is fixed with a pair of flow guide tubes. The mounting plate frame is fixed with an expansion ring. One end of the flow guide tube is connected to the mounting shell, and the other end of the flow guide tube is connected to the expansion ring.

[0010] Preferably, a prompt mechanism is also included, which is arranged on the threaded cover plate. The prompt mechanism includes an indicator block, a push rod, a spring and an elastic sheet. The push rod is slidably connected to the threaded cover plate, a spring is fixed between the push rod and the threaded cover plate, the push rod is fixed with the indicator block, the gas tank is fixed with the elastic sheet, and the elastic sheet is squeezed and fitted with the push rod.

[0011] Preferably, the elastic sheet is in the shape of a concave arc surface.

[0012] Preferably, a partition mechanism is also included, which is arranged on the connector. The partition mechanism includes a perforated plate, a movable plate and spring plates. The perforated plate is fixedly connected to the connector, the connector is slidably connected to the movable plate, a pair of spring plates are fixedly connected between the movable plate and the connector, and the movable plate is in contact with the perforated plate.

[0013] Preferably, both the movable plate and the orifice plate are provided with evenly distributed square holes, and the square holes on the movable plate and the orifice plate are staggered.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention uses components such as a blocking block and a small air pump, which can not only promptly block the air outlet of the installation shell after the connection between the installation shell and the connecting port of the automobile is disconnected to avoid leakage of hydrogen remaining in the installation shell, but also can suck the remaining hydrogen into the gas storage tank for recycling, thereby improving the safety and resource utilization of the hydrogen gas replenishing device.

[0015] 2. The present invention uses components such as an expansion plate and an extrusion cylinder to promptly fill the interior of the installation shell after the residual hydrogen in the installation shell is sucked into the gas storage tank, thereby avoiding negative pressure inside the installation shell, which causes the installation shell to inhale external air due to negative pressure when used next time and makes the subsequently injected hydrogen impure, thereby improving the practicality of the hydrogen gas replenishing device.

[0016] 3. The present invention uses components such as an expansion ring and a guide tube to not only seal the gap between the installation shell and the connecting port of the vehicle to prevent hydrogen leakage, but also reinforce the connection between the installation shell and the connecting port of the vehicle to prevent the installation shell from being accidentally separated from the connecting port of the vehicle, thereby improving the connection stability and safety of the hydrogen gas replenishing device.

[0017] 4. The present invention can promptly remind the user after a sufficient amount of hydrogen is collected in the gas tank through components such as the indicator block and the elastic sheet, so that the user can replace the gas tank in time, avoiding the gas tank from exploding due to excessive gas collection and resulting in excessive gas pressure, thereby improving the safety of the hydrogen gas replenishing device.

[0018] 5. The present invention uses components such as a perforated plate and a movable plate to promptly block the gas outlet of the connector after hydrogen replenishment is completed, thereby preventing the connector from being connected to the mounting shell, thereby causing the hydrogen in the subsequent connector to be sucked into the gas tank by the small air pump and causing negative pressure, thereby improving the practicality of the hydrogen gas replenishment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the body, hydrogen tank and connector of the present invention.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the connector, mounting housing, hollow connecting frame and other components of the present invention.

[0022] Figure 4 The three-dimensional structure diagram of the present invention is to install the housing, the limit block and the top block and other components.

[0023] Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the blocking block, compression spring, blocking ring and other components of the present invention.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the hollow connecting frame, expansion plate, connecting pipe and other components of the present invention.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the expansion plate, connecting pipe, extrusion cylinder and other components of the present invention.

[0026] Figure 8 The three-dimensional structure schematic diagram of the present invention is to install the shell, the guide tube, the expansion ring and other components.

[0027] Fig. 9 It is a three-dimensional structural schematic diagram of the mounting plate frame, guide tube, expansion ring and other components of the present invention.

[0028] Fig.10 It is a three-dimensional structural schematic diagram of the indicating block, the ejector rod, the spring and other components of the present invention.

[0029] Fig.11 It is a three-dimensional structural schematic diagram of components such as the push rod, spring and elastic sheet of the present invention.

[0030] Fig.12 It is a three-dimensional structural schematic diagram of the connector, movable plate, spring and other components of the present invention.

[0031] Fig.13 It is a schematic diagram of the exploded three-dimensional structure of the orifice plate, the movable plate and the shrapnel of the present invention.

[0032] Explanation of the accompanying drawings: 1_body, 11_hydrogen tank, 12_connector, 13_mounting shell, 14_limiting block, 15_top block, 1501_blocking block, 16_compression spring, 17_blocking ring, 18_air guide pipe, 19_small air pump, 110_gas storage tank, 111_threaded cover plate, 2_hollow connecting frame, 21_expansion plate, 22_connecting pipe, 23_extrusion cylinder, 3_mounting plate frame, 31_flow guide pipe, 32_expansion ring, 4_indicator block, 41_top rod, 42_spring, 43_elastic sheet, 5_orifice plate, 51_moving plate, 52_shrapnel. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] Embodiment 1: A hydrogen gas replenishing device for a hydrogen fuel cell vehicle, such as Figure 1-Figure 5 As shown, it includes an organism 1, a hydrogen tank 11, a connector 12, a mounting shell 13, a limit block 14, a top block 15, a blocking block 1501, a compression spring 16, a blocking ring 17, an air guide tube 18, a small air pump 19, a gas storage tank 110 and a threaded cover plate 111. The hydrogen tank 11 is fixedly connected to the left front portion of the organism 1, the connector 12 is clamped on the front side of the organism 1, the connector 12 and the hydrogen tank 11 are connected through a pipeline, the bottom of the connector 12 is fixedly connected to the mounting shell 13, the inside of the mounting shell 13 is fixedly connected to the limit block 14, the middle of the limit block 14 is slidably connected to the top block 15, and a Compression spring 16, a blocking block 1501 is fixedly connected to the top of the top block 15, the blocking block 1501 is in contact with the limit block 14, a blocking ring 17 is fixedly connected to the top of the blocking block 1501, the blocking ring 17 is slidably connected to the mounting shell 13, air ducts 18 are fixedly connected to the front and rear sides of the connector 12, a small air pump 19 is fixedly connected to the front and rear sides of the connector 12, the air duct 18 is connected to the adjacent small air pump 19, an air tank 110 is clamped on the left part of the connector 12, one end of the air duct 18 is connected to the mounting shell 13, and the other end of the air duct 18 is connected to the air tank 110, and a threaded cover plate 111 is threadedly connected to the left side of the connector 12.

[0035] like Figure 5 As shown, a sealing rubber ring is fixedly connected to the bottom of the block 1501.

[0036] like Figure 6 and Figure 7 As shown, it also includes a filling mechanism, which is arranged on the installation shell 13. The filling mechanism includes a hollow connecting frame 2, an expansion plate 21, a connecting pipe 22 and an extrusion cylinder 23. The hollow connecting frame 2 is fixedly connected to the outside of the installation shell 13. The middle part of the hollow connecting frame 2 is fixedly connected and connected with four expansion plates 21 distributed equidistantly around the circumference. The front side of the connector 12 is fixedly connected with two left and right extrusion cylinders 23. A connecting pipe 22 is fixedly connected and connected between the hollow connecting frame 2 and the left and right extrusion cylinders 23.

[0037] like Fig.12 and Fig.13 As shown, a partition mechanism is also included, which is arranged on the connector 12. The partition mechanism includes a perforated plate 5, a movable plate 51 and a spring piece 52. The perforated plate 5 is fixedly connected to the inside of the connector 12. The movable plate 51 is slidably connected to the lower side of the inside of the connector 12. The spring pieces 52 symmetrically distributed front and back are fixedly connected to the left and right sides between the movable plate 51 and the connector 12. The movable plate 51 is in contact with the perforated plate 5.

[0038] like Fig.13 As shown, both the movable plate 51 and the orifice plate 5 are provided with evenly distributed square holes, and the square holes on the movable plate 51 and the orifice plate 5 are staggered.

[0039] When the user needs to add hydrogen to the hydrogen fuel cell vehicle, the user can first move the body 1 and other components to the vicinity of the vehicle, then remove the connector 12 and other components from the body 1, and dock the installation shell 13 with the connecting port of the vehicle. At this time, the connecting port of the vehicle will contact and squeeze the top block 15, so that the top block 15, the blocking block 1501 and the blocking ring 17 move upward, and the compression spring 16 is immediately compressed. The blocking block 1501 moves upward to separate from the limit block 14 and no longer blocks the air outlet of the installation shell 13. The blocking ring 17 moves upward to block the connecting port between the air guide pipe 18 and the installation shell 13. After docking, the connector 12 can be started. The connector 12 will inhale the hydrogen in the hydrogen tank 11 through the pipeline, and as the amount of hydrogen in the connector 12 gradually increases, The air pressure also gradually increases, and the hydrogen in the connector 12 will squeeze the movable plate 51, causing the movable plate 51 to move downward and separate from the orifice plate 5, and the spring piece 52 will be deformed and compressed immediately. At this time, the connector 12 can allow the hydrogen to pass through the orifice plate 5 and the square holes on the movable plate 51 and enter the mounting shell 13, and then be injected into the interior of the car through the connecting port of the mounting shell 13 and the car, thereby replenishing hydrogen into the hydrogen fuel cell car. After replenishing the hydrogen, the connector 12 can be closed. At this time, the movable plate 51 will move upward and reset under the action of the spring piece 52 and fit the orifice plate 5, thereby blocking the air outlet of the connector 12. Next, the mounting shell 13 can be disconnected from the connecting port of the car, and the top block 15, the blocking block 1501 and the blocking ring 17 will be under pressure. Under the action of the spring 16, it quickly moves downward to reset and re-block the air outlet of the installation shell 13 to prevent the hydrogen remaining in the installation shell 13 from leaking, and the blocking ring 17 moves downward to reset and no longer blocks the connecting port between the air guide pipe 18 and the installation shell 13. Then the small air pump 19 can be started, and the small air pump 19 will suck the hydrogen remaining in the installation shell 13 into the gas storage tank 110 through the air guide pipe 18 for recycling. As the hydrogen in the installation shell 13 gradually decreases, the air pressure in the installation shell 13 will also drop immediately and be lower than the external atmospheric pressure. At this time, the four expansion plates 21 equidistantly distributed around the circumference will gradually expand and become larger, and suck the gas in the extrusion cylinder 23 through the hollow connecting frame 2 and the connecting pipe 22, and the piston rod of the extrusion cylinder 23 Then it moves backwards, and the expanded expansion plate 21 will fill the inside of the installation shell 13 after it expands, so as to avoid negative pressure inside the installation shell 13, which will cause the installation shell 13 to inhale external air due to negative pressure when it is used next time and make the subsequently injected hydrogen not pure enough. The movable plate 51 cooperates with the orifice plate 5 and blocks the air outlet of the connector 12, which can also prevent the hydrogen in the connector 12 from being inhaled into the gas tank 110 by the small air pump 19 and causing negative pressure. After the residual hydrogen is recovered, the small air pump 19 is turned off and the connector 12 and other components are put back in place. Only when the connector 12 is started again in subsequent use and the hydrogen in the hydrogen tank 11 is injected into the installation shell 13, the air pressure in the installation shell 13 gradually increases and becomes greater than the external atmospheric pressure.The hydrogen in the installation shell 13 will squeeze the expansion plate 21, causing the expansion plate 21 to gradually shrink and return the gas to the extrusion cylinder 23 through the hollow connecting frame 2 and the connecting pipe 22, and the piston rod of the extrusion cylinder 23 will then move forward and reset.

[0040] Embodiment 2: Based on embodiment 1, Figure 8 and Fig. 9 As shown, a sealing mechanism is also included, which is arranged on the mounting shell 13. The sealing mechanism includes a mounting plate frame 3, a guide tube 31 and an expansion ring 32. The mounting plate frame 3 is fixedly connected to the lower part of the mounting shell 13. The guide tubes 31 are fixedly connected on both sides of the mounting plate frame 3. The expansion ring 32 is fixedly connected inside the mounting plate frame 3. One end of the guide tube 31 is connected to the mounting shell 13, and the other end of the guide tube 31 is connected to the expansion ring 32.

[0041] When the connector 12 injects hydrogen into the mounting shell 13, a portion of the hydrogen will enter the expansion ring 32 through the guide tube 31 and cause the expansion ring 32 to expand. The expansion of the expansion ring 32 can not only block the gap between the mounting shell 13 and the connecting port of the automobile to prevent hydrogen leakage, but also reinforce the connection between the mounting shell 13 and the connecting port of the automobile to prevent the mounting shell 13 from being accidentally separated from the connecting port of the vehicle. When the user starts the small air pump 19, the hydrogen in the expansion ring 32 will also be sucked into the gas tank 110 for recycling, and the expansion ring 32 will then shrink and return to its original state.

[0042] like Fig.10 and Fig.11 As shown, a prompt mechanism is also included, which is arranged on the threaded cover plate 111. The prompt mechanism includes an indicator block 4, a push rod 41, a spring 42 and an elastic sheet 43. The push rod 41 is slidably connected to the middle of the threaded cover plate 111, and a spring 42 is fixed between the push rod 41 and the threaded cover plate 111. The left end of the push rod 41 is fixedly connected to the indicator block 4, and the left side of the gas storage tank 110 is fixedly connected to the elastic sheet 43, and the elastic sheet 43 is squeezed and matched with the push rod 41.

[0043] like Fig.10 and Fig.11 As shown, the elastic sheet 43 is in the shape of a concave arc surface.

[0044] As the amount of hydrogen collected in the gas tank 110 gradually increases, the air pressure in the gas tank 110 will also increase. When a sufficient amount of hydrogen has been collected in the gas tank 110, the air pressure in the gas tank 110 will reach a maximum and squeeze the elastic sheet 43, causing the elastic sheet 43 to deform and bulge to the left. The bulging leftward of the elastic sheet 43 will contact and squeeze the push rod 41, causing the push rod 41 and the indicator block 4 to move to the left and extend. The spring 42 will be compressed immediately, so that the user can be promptly reminded through the indicator block 4 that a sufficient amount of hydrogen has been collected in the gas tank 110. At this time, the user can unscrew the threaded cover plate 111 and other components from the connector 12 and replace the gas tank 110. During this period, the push rod 41 and the indicator block 4 will move to the right and reset under the action of the spring 42. After replacing the new gas tank 110, the threaded cover plate 111 and other components can be screwed back to the connector 12.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A hydrogen gas replenishing device for a hydrogen fuel cell vehicle, comprising a body (1), a hydrogen tank (11) and a connector (12), wherein the body (1) is fixedly connected to the hydrogen tank (11), the body (1) is snap-connected to the connector (12), and the connector (12) and the hydrogen tank (11) are connected via a pipeline, characterized in that: The invention also comprises a mounting shell (13), a limit block (14), a top block (15), a blocking block (1501), a compression spring (16), a blocking ring (17), an air guide tube (18), a small air pump (19), an air storage tank (110) and a threaded cover plate (111); the connector (12) is fixedly connected to the mounting shell (13); the mounting shell (13) is fixedly connected to the limit block (14); the limit block (14) is slidably connected to the top block (15); a compression spring (16) is fixedly connected between the top block (15) and the limit block (14); the top block (15) is fixedly connected to the blocking block (1501); the blocking block (1501) is in contact with the limit block (14); the blocking block (1501) is fixedly connected to the blocking ring (17); the blocking ring (17) is slidably connected to the mounting housing (13), the connector (12) is fixedly connected to a pair of air guide tubes (18), the connector (12) is fixedly connected to a pair of small air pumps (19), the air guide tubes (18) are in communication with the small air pumps (19), the connector (12) is clamped with an air storage tank (110), one end of the air guide tube (18) is in communication with the mounting housing (13), the other end of the air guide tube (18) is in communication with the air storage tank (110), and the connector (12) is threadedly connected to a threaded cover plate (111); wherein the blocking block (1501) is fixedly connected to a sealing rubber ring, and further comprises a filling mechanism, the filling mechanism is arranged on the mounting housing (13), the filling mechanism comprises a hollow connecting frame (2), an expansion plate ( 21), a connecting pipe (22) and an extrusion cylinder (23), the hollow connecting frame (2) is fixedly connected to the mounting shell (13), the hollow connecting frame (2) is fixedly connected to and communicates with expansion plates (21) equidistantly distributed around the circumference, the connector (12) is fixedly connected to a pair of extrusion cylinders (23), and the hollow connecting frame (2) and the pair of extrusion cylinders (23) are fixedly connected to and communicate with a connecting pipe (22); when the blocking ring (17) moves upward, it will block the connection port between the air duct (18) and the mounting shell (13), and when the mounting shell (13) is disconnected from the connection port of the vehicle, the small air pump (19) can be started, and the small air pump (19) will pass the air duct (18) to The hydrogen remaining in the installation shell (13) is sucked into the gas storage tank (110) for recycling. As the hydrogen in the installation shell (13) gradually decreases, the gas pressure in the installation shell (13) will also drop and become lower than the external atmospheric pressure. At this time, the four expansion plates (21) distributed equidistantly around the circumference will gradually expand and become larger and absorb the gas in the extrusion cylinder (23) through the hollow connecting frame (2) and the connecting pipe (22). The piston rod of the extrusion cylinder (23) will then move backwards, and the expanded expansion plates (21) will fill the interior of the installation shell (13) to avoid negative pressure inside the installation shell (13).

2. A hydrogen gas replenishing device for a hydrogen fuel cell vehicle as claimed in claim 1, characterized in that: The invention also comprises a sealing mechanism, which is arranged on the mounting shell (13), and comprises a mounting plate frame (3), a flow guide tube (31) and an expansion ring (32). The mounting plate frame (3) is fixedly connected to the mounting shell (13), a pair of flow guide tubes (31) are fixedly connected to the mounting plate frame (3), and the mounting plate frame (3) is fixedly connected to the expansion ring (32). One end of the flow guide tube (31) is connected to the mounting shell (13), and the other end of the flow guide tube (31) is connected to the expansion ring (32).

3. A hydrogen gas replenishing device for a hydrogen fuel cell vehicle as claimed in claim 2, characterized in that: The device also includes a prompting mechanism, which is arranged on the threaded cover plate (111). The prompting mechanism includes an indicating block (4), a push rod (41), a spring (42) and an elastic sheet (43). The push rod (41) is slidably connected to the threaded cover plate (111). The spring (42) is fixedly connected between the push rod (41) and the threaded cover plate (111). The push rod (41) is fixedly connected to the indicating block (4). The gas storage tank (110) is fixedly connected to the elastic sheet (43). The elastic sheet (43) is pressed and matched with the push rod (41).

4. A hydrogen gas replenishing device for a hydrogen fuel cell vehicle as claimed in claim 3, characterized in that: The elastic sheet (43) is in the shape of a concave arc surface.

5. A hydrogen gas replenishing device for a hydrogen fuel cell vehicle as claimed in claim 4, characterized in that: The device also includes a partition mechanism, which is arranged on the connector (12). The partition mechanism includes a perforated plate (5), a movable plate (51) and spring pieces (52). The perforated plate (5) is fixedly connected to the connector (12). The connector (12) is slidably connected to the movable plate (51). A pair of spring pieces (52) are fixedly connected between the movable plate (51) and the connector (12). The movable plate (51) is in contact with the perforated plate (5).

6. A hydrogen gas replenishing device for a hydrogen fuel cell vehicle as claimed in claim 5, characterized in that: The movable plate (51) and the orifice plate (5) are both provided with evenly distributed square holes, and the square holes on the movable plate (51) and the orifice plate (5) are distributed in a staggered manner.

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