Hydrogen fuel cell integrated box

Abstract

The application discloses a hydrogen fuel cell integrated box, which comprises a box body, a cell stack, a hydrogen storage tank, an oxygen storage tank, an electric control unit, a gas pipeline and a fan are contained in the box body, the box body is provided with an electric output component, a selectively opened and closed air inlet, an air outlet corresponding to the opening and closing state of the air inlet and a selectively opened and closed tank replacement opening, the cell stack, the hydrogen storage tank, the oxygen storage tank, the electric control unit and the gas pipeline are arranged in the box body, the hydrogen storage tank and the oxygen storage tank are connected with the cell stack through the gas pipeline, the cell stack is connected with the electric control unit, the electric control unit is connected with the electric output component, and the fan has a gas suction end and a gas blowing end, and the gas suction end corresponds to the air inlet. The application can replace the whole hydrogen fuel power generation system, replace the hydrogen storage tank or the oxygen storage tank alone, and eliminate the deposition of hydrogen gas in the dead angle of the box body.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydrogen fuel cell power generation technology, and particularly relates to a hydrogen fuel cell integrated box. BACKGROUND

[0002] The hydrogen fuel cell is a device for converting chemical energy in hydrogen fuel into electric energy. The hydrogen fuel cell has become a hot spot in the field of energy research because of its low working temperature, no pollution, no corrosion, high energy conversion rate, large specific power, rapid start and other advantages. In the hydrogen fuel cell power generation, fuel supply systems such as hydrogen storage tanks and oxygen storage tanks are needed to provide sufficient fuel for the hydrogen fuel cell stack to work, and many other auxiliary equipment are needed to operate to cooperate. The composition of many devices makes the hydrogen fuel cell power generation system have many pipelines and complex wiring, which affects the use and promotion of the hydrogen fuel cell.

[0003] In order to solve this problem, the existing technology often uses a battery box to integrate the hydrogen fuel cell power generation system. For example, Chinese invention patent CN216015433U provides a portable large-capacity hydrogen storage fuel cell power generation system, which includes a hydrogen storage system, a fuel cell unit, a DC / DC module, an inverter and a control system integrated in the same box. The output end of the hydrogen storage system is connected to the input end of the fuel cell unit, the output end of the fuel cell unit is connected to the DC / DC module, the output end of the DC / DC module is connected to the inverter, and the output end of the inverter is connected to the user in use.

[0004] However, the hydrogen fuel cell box also has the following problems. First, the current hydrogen fuel cell power generation system mainly relies on replacing the hydrogen storage tank to supplement the fuel. However, since hydrogen and oxygen are both flammable and explosive substances, it is dangerous for non-professionals to operate, and frequent replacement can easily cause the socket to loosen or touch other connection ports, causing the hydrogen fuel cell power generation system to malfunction. Second, due to the sealed space of the hydrogen fuel cell box, once the gas in the hydrogen storage tank or the oxygen storage tank leaks, the box will be filled with gas and cannot be quickly discharged, increasing the use risk of the hydrogen fuel cell. At present, fans are often used to discharge gas, but the fans cannot effectively disperse the hydrogen gas accumulated in the corners. Third, the hydrogen storage tank and other equipment are mostly made of metal, and the water produced after the hydrogen-oxygen reaction cannot be effectively discharged from the battery box, which can easily cause rust in the box. Fourth, the degree of portability is insufficient, and the energy supply problem faced by mobile dwellings such as outdoor camping or small energy vehicles has not been effectively solved. SUMMARY

[0005] In order to effectively solve the above technical problems, the present application provides a hydrogen fuel cell integrated box, which comprises a box body, a battery stack, a hydrogen storage tank, an oxygen storage tank, an electronic control unit, a gas pipeline and a gas fan.

[0006] The box is provided with an electric output component, a selectively opened and closed air inlet, an air outlet corresponding to the opening and closing state of the air inlet, and at least one selectively opened and closed tank replacement opening.

[0007] The battery stack, the hydrogen storage tank, the oxygen storage tank, the electric control unit, and the gas pipeline are arranged inside the box, the hydrogen storage tank and the oxygen storage tank are connected to the battery stack through the gas pipeline, the battery stack is connected to the electric control unit, the electric control unit is connected to the electric output component, and the air fan has an air suction end and an air blowing end, and the air suction end corresponds to the air inlet.

[0008] Preferably, the box has a bottom plate, the bottom plate has a bottom inner surface facing the inside of the box, the bottom inner surface has a first edge and a second edge opposite to the first edge, the first edge is higher than the second edge, and the second edge is closer to the air outlet than the first edge.

[0009] Preferably, the second edge is connected to the air outlet.

[0010] Preferably, the inside of the box is further provided with a hydrogen storage tank and an oxygen storage tank, the at least one tank replacement opening includes a hydrogen replacement opening and an oxygen replacement opening, the hydrogen replacement opening corresponds to a tank opening of the hydrogen storage tank, and the oxygen replacement opening corresponds to a tank opening of the oxygen storage tank, the hydrogen storage tank is movably installed in the hydrogen storage tank through the hydrogen replacement opening, and the oxygen storage tank is movably installed in the oxygen storage tank through the oxygen replacement opening.

[0011] Preferably, the electric control unit is electrically connected to the tank replacement opening for controlling the operation of the tank replacement opening.

[0012] Preferably, the gas pipeline further includes a hydrogen supply socket and an oxygen supply socket, the hydrogen replacement opening and the oxygen replacement opening are independently opened and closed, the hydrogen replacement opening is connected to the hydrogen supply socket, and the hydrogen replacement opening and the hydrogen supply socket correspondingly operate; the oxygen replacement opening is connected to the oxygen supply socket, and the oxygen replacement opening and the oxygen supply socket correspondingly operate.

[0013] Preferably, the air inlet is located at the upper end of the box, and the air outlet is located at the lower end of the box.

[0014] Preferably, the air inlet and the air outlet are diagonally distributed on the box.

[0015] Preferably, it further includes an air blowing pipe, the pipe wall of the air blowing pipe is provided with a plurality of air holes, the box has a top plate, the top plate has a top inner surface facing the inside of the box, the air blowing pipe is arranged on the top inner surface, and the pipe opening of the air blowing pipe corresponds to the air blowing end of the air fan.

[0016] Preferably, it further includes a gas adsorption chamber containing a gas adsorbent, the box having a top plate with an inner surface facing the interior of the box, and the gas adsorption chamber being disposed on the inner surface of the top plate.

[0017] Preferably, the housing is further provided with an air inlet cover for closing the air inlet and an air outlet cover for closing the air outlet. The electronic control unit is electrically connected to the air inlet cover and the air outlet cover and is used to control the operation of the air inlet cover and the air outlet cover.

[0018] Preferably, the housing is made of metal, and the battery stack is attached to the housing.

[0019] Preferably, the fan is located inside the housing, and the electronic control unit is electrically connected to the fan to control its operation.

[0020] The beneficial effects of this invention are:

[0021] 1. Complete replacement of the integrated tank: The hydrogen fuel cell integrated tank of the present invention is connected to the external power supply using an electrical output component. When the power is insufficient, the entire hydrogen fuel cell integrated tank is replaced, avoiding the operation of replacing the hydrogen storage tank separately in the prior art. This can be operated by non-professionals, ensuring safety.

[0022] 2. Gas circulation inside the box: The air fan accelerates air circulation, and the air blowing holes on the air blowing pipe eliminate the hydrogen and battery stack hot gas deposits in the dead corners of the top of the box. The gas adsorption chamber is also provided. Through the gas adsorption method, a certain amount of gas can be adsorbed when the air is not smooth, and the gas can be carried out of the battery integration box when the air is circulating.

[0023] 3. Drainage ramp: The bottom inner surface of the box base plate has a first edge and a second edge opposite to the first edge. The first edge is higher than the second edge, and the second edge is closer to the air outlet than the first edge. Water generated by the battery stack is discharged through the air outlet, which avoids metal corrosion, equipment aging, and increases service life.

[0024] 4. Flexible tank replacement: By using the tank replacement port, the hydrogen storage tank, and the oxygen storage tank, the hydrogen storage tank and oxygen storage tank inside the box can be detachably and fixedly installed. When changing tanks, they can be flexibly removed and replaced without affecting the position and function of other modules.

[0025] 5. Portable and dustproof: This invention is convenient for portable use as a home power generation device or as a power supply system for small energy vehicles; when the hydrogen fuel cell integrated box is idle, the air inlet cover, the air outlet cover and the tank replacement port are electrically closed to prevent dust accumulation inside the box. Attached Figure Description

[0026] To better illustrate the technical solution of this invention, the following is a description of the invention with accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0028] Figure 2 This is a block diagram of the electronic control unit in Embodiment 1;

[0029] Figure 3 This is a schematic diagram of the hydrogen storage tank and oxygen storage tank in Example 1;

[0030] Reference numerals: 1. Box body; 11. Bottom inner surface; 12. First edge; 13. Second edge; 14. Top inner surface; 2. Hydrogen storage tank; 21. Hydrogen storage tank; 3. Oxygen storage tank; 31. Oxygen storage tank; 4. Electrical control unit; 41. Electrical output component; 5. Fan; 51. Inhalation end; 52. Blowing end; 53. Inlet; 54. Inlet cover; 55. Outlet; 56. Outlet cover; 57. Blowing pipe; 58. Air hole; 6. Tank replacement port; 61. Hydrogen replacement port; 62. Oxygen replacement port; 7. Battery stack; 8. Gas pipeline; 81. Hydrogen supply port; 82. Oxygen supply port; 9. Gas adsorption chamber. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0032] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0033] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] See Embodiment 1 of the present invention. Figures 1-2A hydrogen fuel cell integrated box includes a box body 1, a fuel cell stack 7, a hydrogen storage tank 2, an oxygen storage tank 3, an electronic control unit 4, a gas pipeline 8, and a fan 5. The fuel cell stack 7, hydrogen storage tank 2, oxygen storage tank 3, electronic control unit 4, and gas pipeline 8 are located inside the box body 1. The hydrogen storage tank 2 and oxygen storage tank 3 are connected to the fuel cell stack 7 via the gas pipeline 8. The fuel cell stack 7 is connected to the electronic control unit 4. The box body 1 also has an electrical output component 41, which is connected to the electronic control unit 4. Users can directly connect their electrical equipment to the electrical output component 41 for power supply. In this embodiment, the electronic control unit 4 also includes a voltage control module, which is connected to the electrical output component 41, facilitating voltage selection and control by the user. This embodiment reduces the various connection pipelines between the hydrogen fuel cell and the user's electrical equipment, leaving only the electrical output component 41. The outer shell of the box body 1 covers the hydrogen tank 2, oxygen tank 3, and fuel cell stack 7, preventing hydrogen leakage. When the power is insufficient, the entire invention can be replaced without opening the casing 1. Then, a professional can replace the hydrogen storage tank 2 or the oxygen storage tank 3, thereby avoiding the loosening of connecting pipes due to careless operation by hydrogen refueling station workers.

[0035] The housing 1 is also equipped with a hydrogen storage tank 21 and an oxygen storage tank 31. The hydrogen storage tank 21 is the same size as the hydrogen storage tank 2, allowing the hydrogen storage tank 2 to be movably and snap-fitted into the hydrogen storage tank 21. The oxygen storage tank 31 is the same size as the oxygen storage tank 3, allowing the oxygen storage tank 3 to be movably and snap-fitted into the oxygen storage tank 31. The housing 1 is provided with at least one tank exchange port 6 that can be selectively opened and closed. In this embodiment, the tank exchange port 6 includes a hydrogen exchange port 61 and an oxygen exchange port 62. The electrical control unit 4 is electrically connected to the hydrogen exchange port 61 and the oxygen exchange port 62 respectively to control the opening and closing of the hydrogen exchange port 61 and the oxygen exchange port 62. The hydrogen exchange port 61 corresponds to the opening of the hydrogen storage tank 21, and the oxygen exchange port 62 corresponds to the opening of the oxygen storage tank 31. The hydrogen storage tank 2 is movably installed in the hydrogen storage tank 21 through the hydrogen exchange port 61, and the oxygen storage tank 3 is movably installed in the oxygen storage tank 31 through the oxygen exchange port 62.

[0036] See Figure 1 and 3The gas pipeline 8 also includes a hydrogen supply port 81 and an oxygen supply port 82. The gas pipeline 8 is connected to the hydrogen storage tank 2 via the hydrogen supply port 81, and the gas pipeline 8 is connected to the oxygen storage tank 3 via the oxygen supply port 82. The hydrogen exchange port 61 is connected to the hydrogen supply port 81 via a mechanism so that the hydrogen exchange port 61 and the hydrogen supply port 81 operate in a corresponding manner. Opening the hydrogen exchange port 61 separates the hydrogen supply port 81 from the hydrogen storage tank 2, and closing the hydrogen exchange port 61 automatically connects the hydrogen supply port 81 to the hydrogen storage tank 2 to provide hydrogen. The oxygen exchange port 62 is connected to the oxygen supply port 82, and the oxygen exchange port 62 and the oxygen supply port 82 operate in a corresponding manner. Opening the oxygen exchange port 62 separates the oxygen supply port 82 from the oxygen storage tank 3, and closing the oxygen exchange port 62 automatically connects the oxygen supply port 82 to the oxygen storage tank 3 to provide oxygen. When it is necessary to replace the hydrogen storage tank 2 or the oxygen storage tank 3 in this embodiment, the hydrogen exchange port 61 is opened, which cuts off the passage between the hydrogen storage tank 2 and the gas pipeline 8, and then the hydrogen storage tank 2 is removed from the hydrogen storage tank 21; the oxygen exchange port 62 is opened, which cuts off the passage between the oxygen storage tank 3 and the gas pipeline 8, and then the oxygen storage tank 3 is removed from the oxygen storage tank 31. Replacing the hydrogen storage tank 2 and the oxygen storage tank 3 in this way avoids contact with other components inside the housing 1. In another embodiment, a feasible method in the prior art can also be used, connecting the hydrogen supply port 81 and the oxygen supply port 82 to the electronic control unit 4 respectively, so that the opening and closing of the hydrogen exchange port 61, the oxygen exchange port 62, the hydrogen supply port 81, and the oxygen supply port 82 can be independently controlled.

[0037] In this embodiment, a mounting device (not shown in the figure) can also be attached or installed inside the housing 1. The mounting device is a set of partitions and wiring through holes inside the housing 1, used to fix the positions of the battery stack 7, hydrogen storage tank 2, oxygen storage tank 3, electrical control unit 4, air fan 5, gas adsorption chamber 9, gas pipeline 8, air blowing pipe 57 and other connecting lines, so as to facilitate carrying when going out.

[0038] The housing 1 is provided with a selectively openable and closable air inlet 53 and an air outlet 55 corresponding to the open and closed states of the air inlet 53. The housing 1 is also provided with an air inlet cover 54 for closing the air inlet 53 and an air outlet cover 56 for closing the air outlet 55. The electronic control unit 4 is electrically connected to the air inlet cover 54 and the air outlet cover 56 to control the operation of the air inlet cover 54 and the air outlet cover 56, so that the air outlet 55 and the air inlet 53 open and close simultaneously. When the invention is not in use, the electronic control unit 4 electrically controls the air inlet cover 54 and the air outlet cover 56 to close, preventing dust accumulation inside the housing 1.

[0039] The fan 5 is located inside the housing 1, and the electrical control unit 4 is electrically connected to the fan 5 to control its operation. The fan 5 has an intake end 51 and an exhaust end 52, with the intake end 51 corresponding to the air inlet 53. The air inlet 53 is located at the upper end of the housing 1, and the air outlet 55 is located at the lower end of the housing 1. In this embodiment, the air inlet 53 and the air outlet 55 are diagonally distributed on the housing 1. The housing 1 is also equipped with an air blowing pipe 57, and the pipe wall of the air blowing pipe 57 is provided with several air holes 58, which are through holes. The housing 1 has a top plate (not shown in the figure), which has an inner top surface 14 facing the interior of the housing 1. An air blowing pipe 57 is located on the inner top surface 14, with its opening corresponding to the blowing end 52 of the fan 5. The fan 5 drives air to flow from the blowing end 52 into the air blowing pipe 57, and then blows it out through air holes 58 to various corners of the inner top surface 14 of the housing 1. Due to the low density of hydrogen, it remains in the upper part of the housing 1, thus dispersing the hydrogen trapped in various corners. The housing 1 also has a gas adsorption chamber 9, which is also located on the inner top surface 14. The gas adsorption chamber 9 contains a gas adsorbent, which can be any commonly used physical or chemical adsorbent. In this embodiment, activated carbon adsorbent is used. When there is a large amount of hydrogen in the housing 1, the gas adsorption chamber 9 adsorbs the hydrogen; when the fan 5 circulates air, it desorbs the hydrogen, allowing the activated carbon adsorbent to be reused repeatedly.

[0040] The box 1 has a bottom plate (not shown in the figure), the bottom plate has a bottom inner surface 11 facing the inside of the box 1, the bottom inner surface 11 has a first edge 12 and a second edge 13 opposite to the first edge 12, the first edge 12 is higher than the second edge 13, and the second edge 13 is closer to the air outlet 55 than the first edge 12. In this embodiment, the second edge 13 can be connected to the air outlet 55, and the bottom inner surface 11 forms a slope that slopes downward to the air outlet 55, so that water flows directly out from the air outlet 55.

[0041] The housing 1 is made of metal, and the battery stack 7 is attached to the inner wall of the housing 1 to facilitate heat dissipation of the battery stack 7.

[0042] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A hydrogen fuel cell integrated box, characterized in that, Includes enclosure, battery stack, hydrogen storage tank, oxygen storage tank, electrical control unit, gas pipelines and gas fans; The housing is equipped with an electrical output component, a selectively openable and closeable air inlet, an air outlet corresponding to the open and closed state of the air inlet, and at least one selectively openable and closeable tank replacement port. The housing has a bottom plate, the bottom plate has an inner bottom surface facing the interior of the housing, the inner bottom surface has a first edge and a second edge opposite to the first edge, the first edge is higher than the second edge, and the second edge is closer to the air outlet than the first edge; The housing is also equipped with a hydrogen storage tank and an oxygen storage tank. The at least one tank exchange port includes a hydrogen exchange port and an oxygen exchange port. The hydrogen exchange port corresponds to the opening of the hydrogen storage tank and the oxygen exchange port corresponds to the opening of the oxygen storage tank. The hydrogen storage tank is movably installed in the hydrogen storage tank through the hydrogen exchange port, and the oxygen storage tank is movably installed in the oxygen storage tank through the oxygen exchange port. The battery stack, the hydrogen storage tank, the oxygen storage tank, the electronic control unit, and the gas pipeline are located inside the housing. The hydrogen storage tank and the oxygen storage tank are connected to the battery stack through the gas pipeline. The battery stack is connected to the electronic control unit, and the electronic control unit is connected to the electrical output component. The fan has an air intake end and an air blowing end, with the air intake end corresponding to the air inlet. The housing is also provided with an air inlet cover for closing the air inlet and an air outlet cover for closing the air outlet. The electronic control unit is electrically connected to the air inlet cover and the air outlet cover and is used to control the operation of the air inlet cover and the air outlet cover.

2. The hydrogen fuel cell integrated box according to claim 1, characterized in that, The air inlet is located at the upper end of the housing, and the air outlet is located at the lower end of the housing.

3. The hydrogen fuel cell integrated box according to claim 2, characterized in that, The air inlet and the air outlet are diagonally distributed on the housing.

4. The hydrogen fuel cell integrated box according to claim 2, characterized in that, It also includes an air blowing pipe, the wall of which is provided with a number of air holes. The box has a top plate with an inner surface facing the inside of the box. The air blowing pipe is located on the inner surface of the top plate and the opening of the air blowing pipe corresponds to the air blowing end of the fan.

5. The hydrogen fuel cell integrated box according to claim 2, characterized in that, It also includes a gas adsorption chamber containing a gas adsorbent, and the box has a top plate with an inner top surface facing the interior of the box, on which the gas adsorption chamber is located.

6. The hydrogen fuel cell integrated box according to claim 1, characterized in that, The enclosure is made of metal, and the battery stack is attached to the enclosure.

7. The hydrogen fuel cell integrated box according to claim 1, characterized in that, The fan is located inside the housing, and the electronic control unit is electrically connected to the fan to control its operation.

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