Small power box of air-cooled hydrogen fuel cell

Abstract

The utility model discloses a small power box for an air-cooled hydrogen fuel cell, which comprises a box body, a lithium battery, an air-cooled hydrogen fuel cell stack, a medium-pressure sensor, a low-pressure sensor, an air inlet electromagnetic valve, an air exhaust electromagnetic valve, a controller and a plurality of electric wires, the right outer side of the box body and the side coaming form a wiring channel, the lithium battery, the air-cooled hydrogen fuel cell stack, the medium-voltage sensor, the low-voltage sensor, the air inlet electromagnetic valve and the exhaust electromagnetic valve are electrically connected with the controller through respective electric wires, and the wiring channel is used for arranging a plurality of electric wires. According to the scheme, the problems that in an existing hydrogen fuel cell box, a wiring channel is formed in the middle of the inner cavity of the box body to optimize the cable layout in the box body, but the layout mode occupies a certain space in the box body, and then the layout and the capacity of other key assemblies are limited are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fuel cell power boxes, in particular to an air-cooled small hydrogen fuel cell power box. Background Art

[0002] Existing hydrogen fuel cell boxes include a box body. A control box and a battery box are located at one end of the box body for managing and storing electrical energy, while a stack box and a valve box are located at the other end for controlling the electrochemical reaction and gas flow of the hydrogen fuel cell, respectively. To optimize the cable layout within the box body, existing hydrogen fuel cell boxes have a wiring channel in the middle of the box body. This design allows power and communication lines to be arranged in an orderly manner within the wiring channel, ensuring the safety and stability of the cables while making the layout of the box body appear reasonable and compact. However, this layout approach has certain limitations. Since the wiring channel is located in the middle of the box body, it inevitably occupies a certain amount of space within the box body, which in turn limits the layout and capacity of other key components. For example, when laying out components such as the control box, battery box, stack box, and valve box, the location and size of the wiring channel need to be considered, which may result in limited space utilization within the battery box. Utility Model Content

[0003] In response to the above-mentioned defects, the present utility model proposes an air-cooled hydrogen fuel cell small power box, which aims to solve the problem in the existing hydrogen fuel cell box that a wiring channel is set in the middle of the box cavity to optimize the cable layout inside the box. However, this layout method will occupy a certain space inside the box, thereby limiting the layout and capacity of other key components.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A small air-cooled hydrogen fuel cell power box, comprising a box body, a lithium battery, an air-cooled hydrogen fuel cell stack, a medium-pressure sensor, a pressure reducing valve, a low-pressure sensor, an air intake connector, an air intake solenoid valve, an exhaust solenoid valve, a controller, a plurality of transmission pipes, and a plurality of wires. A detachable side panel is provided on the right outer side of the box body, and the right outer side of the box body and the side panel form a wiring channel. A through hole is provided on the bottom of the box body. An air intake grille and an exhaust grille are provided on the front and rear sides of the box body, respectively. The pressure reducing valve includes a first air intake port and a first exhaust port. The air-cooled hydrogen fuel cell stack includes a second air intake port and a second exhaust port. The air intake solenoid valve includes a first input end and a first output end. The exhaust solenoid valve includes a second input end and a second output end.

[0006] The lithium battery and the air-cooled hydrogen fuel cell stack are both arranged inside the box, the lithium battery is located above the air-cooled hydrogen fuel cell stack, the pressure reducing valve is installed on the inner bottom of the box, the pressure reducing valve is located below the air-cooled hydrogen fuel cell stack, the medium pressure sensor and the low pressure sensor are both installed on the pressure reducing valve, the intake solenoid valve, the exhaust solenoid valve and the controller are all installed on the right inner side of the box, the intake solenoid valve and the exhaust solenoid valve are both located on the right side of the pressure reducing valve, the controller is located on the right side of the lithium battery, and the intake connector is provided on the outside of the box;

[0007] One end of one of the transmission pipes is connected to the air inlet connector, and the other end passes through the bottom of the box and is connected to the first air inlet. The first exhaust port is connected to the first input port through the transmission pipe, the first output port is connected to the second air inlet through the transmission pipe, the second exhaust port is connected to the second input port through the transmission pipe, and the second output port is connected to the through hole; the lithium battery, the air-cooled hydrogen fuel cell stack, the medium pressure sensor, the low pressure sensor, the intake solenoid valve and the exhaust solenoid valve are electrically connected to the controller through their respective wires, and the wiring channel is used to arrange a number of the wires.

[0008] Preferably, a first opening and a second opening are formed on the right outer side of the box body, and the first opening is located below the second opening.

[0009] Preferably, a handle is further included, and the handle is installed on the top of the box body.

[0010] Preferably, it also includes an output power plug, which is arranged on the outside of the box. The output power plug is electrically connected to the controller through the wire, and the wire connected to the output power plug is located in the wiring channel.

[0011] Preferably, it also includes a data reading and writing socket and a charging socket, and the data reading and writing socket and the charging socket are both arranged on the top of the box, and the data reading and writing socket is located on the left side of the charging socket, and the data reading and writing socket and the charging socket are both electrically connected to the controller.

[0012] Preferably, it further comprises a switch button, which is arranged on the top of the box body, the switch button is located on the left side of the data read-write socket, and the switch button is electrically connected to the controller.

[0013] Preferably, it also includes a first mounting bracket, a second mounting bracket and a partition; the left and right ends of the partition are respectively fixed to the left inner side and the right inner side of the box body, the first mounting bracket is fixed to the top of the partition, and the second mounting bracket is fixed to the bottom of the partition, the lithium battery is installed on the first mounting bracket, and the air-cooled hydrogen fuel cell stack is installed on the second mounting bracket.

[0014] The technical solution provided by the utility model may have the following beneficial effects:

[0015] In this solution, a removable side panel is installed on the right outer side of the box. The wires are uniformly arranged in a wiring channel formed by the right outer side of the box and the side panel. Compared to the traditional method of placing the wiring channel in the middle of the box cavity, the wiring channel is placed outside the box. This effectively avoids the wiring channel occupying the internal space of the box, thereby limiting the layout and capacity of other key components. In addition, when staff need to repair or organize the wires, they only need to remove the side panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of a small power box of an air-cooled hydrogen fuel cell;

[0017] Figure 2 This is a schematic diagram of the internal structure of a small power box for an air-cooled hydrogen fuel cell;

[0018] Figure 3 It is a schematic diagram of one embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of one embodiment of the present invention;

[0020] Figure 5 It is a schematic diagram of one embodiment of the present invention.

[0021] Among them, 1. box body; 2. lithium battery; 3. air-cooled hydrogen fuel cell stack; 4. medium-pressure sensor; 5. pressure reducing valve; 6. low-pressure sensor; 7. air intake connector; 8. air intake solenoid valve; 9. exhaust solenoid valve; 10. controller; 11. transmission pipeline; 12. electric wires; 13. side panel; 14. wiring channel; 15. through hole; 16. air intake grille; 17. exhaust grille; 18. first opening; 19. second opening; 20. handle; 21. output power plug; 22. data read and write socket; 23. charging socket; 24. switch button; 25. first mounting bracket; 26. second mounting bracket; 27. partition; 31. second air intake; 32. second exhaust; 51. first air intake; 52. first exhaust; 81. first input end; 82. first output end; 91. second input end; 92. second output end. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0023] In the description of the present invention, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means more than two.

[0025] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "installation," "splicing," and "connection" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] A small power box for an air-cooled hydrogen fuel cell comprises a box body 1, a lithium battery 2, an air-cooled hydrogen fuel cell stack 3, a medium-pressure sensor 4, a pressure reducing valve 5, a low-pressure sensor 6, an air intake connector 7, an air intake solenoid valve 8, an exhaust solenoid valve 9, a controller 10, a plurality of transmission pipes 11, and a plurality of wires 12. A detachable side panel 13 is provided on the right outer side of the box body 1. The right outer side of the box body 1 and the side panel 13 form a wiring channel 14. A through hole 15 is provided at the bottom of the box body 1. An air intake grille 16 and an exhaust grille 17 are provided on the front and rear sides of the box body 1, respectively. The pressure reducing valve 5 comprises a first air intake port 51 and a first exhaust port 52. The air-cooled hydrogen fuel cell stack 3 comprises a second air intake port 31 and a second exhaust port 32. The air intake solenoid valve 8 comprises a first input end 81 and a first output end 82. The exhaust solenoid valve 9 comprises a second input end 91 and a second output end 92.

[0027] The lithium battery 2 and the air-cooled hydrogen fuel cell stack 3 are both arranged inside the box 1, the lithium battery 2 is located above the air-cooled hydrogen fuel cell stack 3, the pressure reducing valve 5 is installed on the inner bottom of the box 1, the pressure reducing valve 5 is located below the air-cooled hydrogen fuel cell stack 3, the medium pressure sensor 4 and the low pressure sensor 6 are both installed on the pressure reducing valve 5, the intake solenoid valve 8, the exhaust solenoid valve 9 and the controller 10 are all installed on the right inner side of the box 1, the intake solenoid valve 8 and the exhaust solenoid valve 9 are both located on the right side of the pressure reducing valve 5, the controller 10 is located on the right side of the lithium battery 2, and the intake connector 7 is provided on the outside of the box 1;

[0028] One end of the transmission pipe 11 is connected to the air intake connector 7, and the other end passes through the bottom of the box 1 and is connected to the first air intake port 51. The first exhaust port 52 is connected to the first input port 81 through the transmission pipe 11, and the first output port 82 is connected to the second air intake port 31 through the transmission pipe 11. The second exhaust port 32 is connected to the second input port 91 through the transmission pipe 11, and the second output port 92 is connected to the through hole 15; the lithium battery 2, the air-cooled hydrogen fuel cell stack 3, the medium pressure sensor 4, the low pressure sensor 6, the intake solenoid valve 8 and the exhaust solenoid valve 9 are respectively electrically connected to the controller 10 through their respective wires 12, and the wiring channel 14 is used to arrange a number of the wires 12.

[0029] This solution is a small air-cooled hydrogen fuel cell power box, such as Figure 1-5As shown, when it is necessary to use it to provide electrical energy for an external power system, first connect the air intake connector 7 to the hydrogen gas source (not shown in the figure), then turn on the hydrogen gas source, and the hydrogen is transmitted to the pressure reducing valve 5 through the transmission pipe 11 connected to the air intake connector 7. The setting of the medium pressure sensor 4 can detect the air pressure of the hydrogen when it is input into the pressure reducing valve 5 in real time. When the medium pressure sensor 4 detects that the hydrogen pressure value is 0.1-3.5MPa, the pressure reducing valve 5 will reduce the hydrogen pressure to 40-70KPa. The setting of the low pressure sensor 6 can detect the air pressure of the hydrogen when it is output from the pressure reducing valve 5 in real time. When the low pressure sensor 6 detects that the hydrogen pressure value is 40-70KPa, the controller 10 controls the air intake solenoid valve 8 to open, and the air intake solenoid valve 8 allows a certain amount of hydrogen to pass through, and then closes. Hydrogen is transmitted to the air-cooled hydrogen fuel cell stack 3 through the transmission pipe 11 for reaction. At this time, the air outside the box 1 enters the air-cooled hydrogen fuel cell stack 3 through the air intake grille 16 and is discharged from the exhaust grille 17. This process provides oxygen for the reaction of the air-cooled hydrogen fuel cell stack 3. When hydrogen and oxygen have fully reacted, the controller 10 controls the exhaust solenoid valve 9 to open, and the generated water can be discharged to the outside of the box 1 through the through hole 15. Hydrogen and oxygen react in the air-cooled hydrogen fuel cell stack 3, and electrical energy is generated through chemical reactions. Finally, after the electrical energy passes through the controller 10, it is stored in the lithium battery 2 for use as a backup power supply.

[0030] In this solution, a removable side panel 13 is provided on the right outer side of the box 1. The wires 12 are uniformly arranged in a wiring channel 14 formed by the right outer side of the box 1 and the side panel 13. Compared to the traditional method of placing the wiring channel in the middle of the box cavity, the wiring channel 14 is placed outside the box 1. This effectively avoids the wiring channel 14 occupying the internal space of the box 1, thereby limiting the layout and capacity of other key components. In addition, when staff need to repair or organize the wires 12, they only need to remove the side panel 13.

[0031] Preferably, the right outer side of the box body 1 is provided with a first opening 18 and a second opening 19, and the first opening 18 is located below the second opening 19. In this embodiment, Figure 2 As shown, the provision of the first opening 18 ensures that the wires 12 connected to the air-cooled hydrogen fuel cell stack 3, the medium pressure sensor 4, the low pressure sensor 6, the intake solenoid valve 8, and the exhaust solenoid valve 9 can enter the wiring channel 14. The provision of the second opening 19 ensures that the wires 12 connected to the air-cooled hydrogen fuel cell stack 3, the medium pressure sensor 4, the low pressure sensor 6, the intake solenoid valve 8, and the exhaust solenoid valve 9 can be electrically connected to the controller 10.

[0032] Preferably, it also includes a handle 20, which is installed on the top of the box body 1. In this embodiment, Figure 1 As shown, the arrangement of the handle 20 makes it convenient for workers to lift, place and move the entire air-cooled hydrogen fuel cell small power box.

[0033] Preferably, it further includes an output power plug 21, which is arranged outside the box body 1 and is electrically connected to the controller 10 through the wire 12. The wire 12 connected to the output power plug 21 is located in the wiring channel 14. In this embodiment, Figure 1-2 As shown, the electric energy generated by the chemical reaction in the air-cooled hydrogen fuel cell stack 3 can not only be stored in the lithium battery 2, but also be plugged into the power supply of the external power system through the output power plug 21 to provide electric energy for the external power system.

[0034] Preferably, it also includes a data reading and writing socket 22 and a charging socket 23, both of which are arranged on the top of the box body 1, and the data reading and writing socket 22 is located on the left side of the charging socket 23, and both of the data reading and writing socket 22 and the charging socket 23 are electrically connected to the controller 10. In this embodiment, Figure 1 As shown, the data read and write socket 22 is configured to read the data of the controller 10 and update the version of the software related to the controller 10. The staff can directly charge the lithium battery 2 through the charging socket 23 to use as a backup power supply.

[0035] Preferably, it further includes a switch button 24, which is disposed on the top of the box body 1 and is located on the left side of the data read-write socket 22. The switch button 24 is electrically connected to the controller 10. Figure 1 As shown, the setting of the switch button 24 is conducive to controlling the power on and off of the entire air-cooled hydrogen fuel cell small power box, allowing staff to manually start or shut down the entire air-cooled hydrogen fuel cell small power box.

[0036] Preferably, it also includes a first mounting bracket 25, a second mounting bracket 26 and a partition 27; the left and right ends of the partition 27 are respectively fixed to the left inner side and the right inner side of the box body 1, the first mounting bracket 25 is fixed to the top of the partition 27, and the second mounting bracket 26 is fixed to the bottom of the partition 27. The lithium battery 2 is installed on the first mounting bracket 25, and the air-cooled hydrogen fuel cell stack 3 is installed on the second mounting bracket 26.

[0037] In this embodiment, Figure 2 As shown, the first mounting bracket 25 is provided to provide stable support and fixation for the lithium battery 2, thereby ensuring that the lithium battery 2 is in a stable position inside the box 1 and preventing damage or performance degradation due to vibration or movement. The second mounting bracket 26 is provided to provide necessary support and fixation for the air-cooled hydrogen fuel cell stack 3, thereby ensuring that the air-cooled hydrogen fuel cell stack 3 is in a stable position inside the box 1, which helps to improve its working efficiency and reliability. The partition 27 divides the space inside the box 1 into different areas, so that the lithium battery 2 and the air-cooled hydrogen fuel cell stack 3 can be installed in different positions respectively, which helps to reduce interference between components and improve the overall performance of the air-cooled hydrogen fuel cell small power box.

[0038] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. An air-cooled hydrogen fuel cell small power box, characterized by: The invention comprises a box body, a lithium battery, an air-cooled hydrogen fuel cell stack, a medium-pressure sensor, a pressure reducing valve, a low-pressure sensor, an air intake connector, an air intake solenoid valve, an exhaust solenoid valve, a controller, a plurality of transmission pipes, and a plurality of wires. A detachable side panel is provided on the right outer side of the box body, and a wiring channel is formed between the right outer side of the box body and the side panel. A through hole is provided on the bottom of the box body. An air intake grille and an exhaust grille are provided on the front and rear sides of the box body, respectively. The pressure reducing valve comprises a first air intake port and a first exhaust port. The air-cooled hydrogen fuel cell stack comprises a second air intake port and a second exhaust port. The air intake solenoid valve comprises a first input end and a first output end. The exhaust solenoid valve comprises a second input end and a second output end. The lithium battery and the air-cooled hydrogen fuel cell stack are both arranged inside the box, the lithium battery is located above the air-cooled hydrogen fuel cell stack, the pressure reducing valve is installed on the inner bottom of the box, the pressure reducing valve is located below the air-cooled hydrogen fuel cell stack, the medium pressure sensor and the low pressure sensor are both installed on the pressure reducing valve, the intake solenoid valve, the exhaust solenoid valve and the controller are all installed on the right inner side of the box, the intake solenoid valve and the exhaust solenoid valve are both located on the right side of the pressure reducing valve, the controller is located on the right side of the lithium battery, and the intake connector is provided on the outside of the box; One end of one of the transmission pipes is connected to the air inlet connector, and the other end passes through the bottom of the box and is connected to the first air inlet. The first exhaust port is connected to the first input port through the transmission pipe, the first output port is connected to the second air inlet through the transmission pipe, the second exhaust port is connected to the second input port through the transmission pipe, and the second output port is connected to the through hole; the lithium battery, the air-cooled hydrogen fuel cell stack, the medium pressure sensor, the low pressure sensor, the intake solenoid valve and the exhaust solenoid valve are electrically connected to the controller through their respective wires, and the wiring channel is used to arrange a number of the wires.

2. The air-cooled hydrogen fuel cell small power box according to claim 1, characterized in that: A first opening and a second opening are formed on the right outer side of the box body, and the first opening is located below the second opening.

3. The air-cooled hydrogen fuel cell small power box according to claim 1, characterized in that: It also includes a handle, which is installed on the top of the box body.

4. The air-cooled hydrogen fuel cell small power box according to claim 1, characterized in that: It also includes an output power plug, which is arranged on the outside of the box. The output power plug is electrically connected to the controller through the wire, and the wire connected to the output power plug is located in the wiring channel.

5. The air-cooled hydrogen fuel cell small power box according to claim 1, characterized in that: It also includes a data reading and writing socket and a charging socket. The data reading and writing socket and the charging socket are both arranged on the top of the box. The data reading and writing socket is located on the left side of the charging socket. The data reading and writing socket and the charging socket are both electrically connected to the controller.

6. The air-cooled hydrogen fuel cell small power box according to claim 5, characterized in that: It also includes a switch button, which is arranged on the top of the box body, the switch button is located on the left side of the data reading and writing socket, and the switch button is electrically connected to the controller.

7. The air-cooled hydrogen fuel cell small power box according to claim 1, characterized in that: Also included are a first mounting frame, a second mounting frame, and a partition; The left and right ends of the partition are respectively fixed to the left inner side and the right inner side of the box body, the first mounting bracket is fixed to the top of the partition, and the second mounting bracket is fixed to the bottom of the partition. The lithium battery is installed on the first mounting bracket, and the air-cooled hydrogen fuel cell stack is installed on the second mounting bracket.

Images