Supply System and Hydrogen Cooking System

Abstract

To improve the portability of a supply system.SOLUTION: A supply system 3 includes a hydrogen module 20 and a fuel cell module 70. The hydrogen module 20 includes a portable first housing 22 having at least one wheel 28, and at least one hydrogen cartridge 21 housed in the first housing 22. The fuel cell module 70 includes a portable second housing 71 having at least one wheel 73, and a fuel cell 80 housed in the second housing 71. The fuel cell module 70 and the hydrogen module 10 are mechanically and electrically connected. The fuel cell 80 is capable of generating electricity using hydrogen gas supplied from the hydrogen module 20.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to a supply system and a hydrogen cooking system.

Background Art

[0002] Conventionally, technologies for supplying fuel are known. For example, Patent Document 1 discloses a fuel cartridge for a fuel cell that supplies fuel to the fuel cell.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Due to environmental considerations, interest in hydrogen cookers is increasing. In order to increase the freedom of the location where the hydrogen cooker is used, improvement in the portability of the supply system that supplies fuel to the hydrogen cooker is desired.

[0005] In view of such a point, an object of the present disclosure is to improve the portability of the supply system.

Means for Solving the Problems

[0006] A supply system according to an embodiment of the present disclosure includes a hydrogen module including a portable first housing having at least one wheel and at least one hydrogen cartridge housed in the first housing, and a fuel cell module including a portable second housing having at least one wheel and a fuel cell housed in the second housing. The fuel cell module and the hydrogen module are mechanically and electrically connected. The fuel cell is capable of generating electricity by hydrogen gas supplied from the hydrogen module.

[0007] A hydrogen cooking system according to an embodiment of the present disclosure includes the supply system and a cooking system. The cooking system includes a first cooker capable of performing heat cooking by electric power supplied from the supply system, a pressure reducing valve that reduces the pressure of hydrogen gas supplied from the supply system to a predetermined pressure, and a second cooker capable of performing heat cooking by burning the hydrogen gas after the pressure is reduced by the pressure reducing valve.

Advantages of the Invention

[0008] According to an embodiment of the present disclosure, the portability of the supply system can be improved.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Modes for Carrying Out the Invention

[0010] Hereinafter, embodiments according to the present disclosure will be described with reference to the drawings.

[0011] As shown in Fig. 1, the hydrogen cooking system 1 according to the present embodiment may be used at any place such as outdoors. As shown in Fig. 2, the hydrogen cooking system 1 includes a cooking system 2 and a supply system 3. Fig. 2 shows a state in which a hydrogen module 20 and a fuel cell module 70, which will be described later, are housed in the cooking system 2.

[0012] (Configuration of the cooking system) The user can cook food using the cooking system 2. Hydrogen gas and power are supplied to the cooking system 2 from the supply system 3 via a pipe 4 as shown in Fig. 2. The pipe 4 may be made of any metal material. The pipe 4 includes, for example, three ends. However, the pipe 4 may include any number of ends according to the configuration of the hydrogen cooking system 1.

[0013] As shown in Fig. 1, the cooking system 2 includes a first cooker 10, a second cooker 11, a cooking table 13, two legs 14, a plate portion 15, a storage portion 16, and four wheels 17. As shown in Fig. 3, the cooking system 2 includes a pressure reducing valve 12. In the present embodiment, the cooking system 2 includes four wheels 17. However, the cooking system 2 may include at least one wheel 17 according to, for example, the shape of the cooking table 13.

[0014] As shown in Fig. 3, power is supplied to the first cooker 10 from the supply system 3. The first cooker 10 can perform heat cooking by power. The first cooker 10 may be any cooker as long as it can perform heat cooking by power. The first cooker 10 is, for example, an electromagnetic cooker or an electric cooker. The electric cooker is, for example, a hot plate, an electric rice cooker, or a steam convection oven. As shown in Fig. 1, the first cooker 10 is arranged on the cooking table 13. The first cooker 10 may be incorporated into the cooking table 13.

[0015] As shown in FIG. 3, hydrogen gas is supplied to the second cooker 11 from the supply system 3 via a pressure reducing valve 12. The second cooker 11 is capable of performing cooking by heating by burning hydrogen gas. The second cooker 11 may be any cooker as long as it is capable of performing cooking by heating by burning hydrogen gas. The second cooker 11 is, for example, a grill cooker. As shown in FIG. 1, the second cooker 11 is arranged on the cooking table 13.

[0016] As shown in FIG. 3, hydrogen gas is supplied to the pressure reducing valve 12 from the supply system 3. The pressure reducing valve 12 reduces the pressure of the hydrogen gas supplied from the supply system 3 to a predetermined pressure. The predetermined pressure may be set according to the type of the second cooker 11. For example, hydrogen gas with a pressure of about 0.2 [MPa] is supplied to the pressure reducing valve 12 from the supply system 3. In this case, when the second cooker 11 is a grill cooker, the pressure reducing valve 12 reduces the pressure of the hydrogen gas to about 0.002 [MPa]. The pressure reducing valve 12 supplies the hydrogen gas after pressure reduction to the second cooker 11. The pressure reducing valve 12 may be incorporated into the cooking table 13 as shown in FIG. 1.

[0017] As shown in FIG. 2, the end of the pipe 4 is inserted into the cooking table 13. Hydrogen gas is supplied to the pressure reducing valve 12 incorporated into the cooking table 13 via the pipe 4.

[0018] The cooking table 13 is, for example, in the shape of a rectangular flat plate. The cooking table 13 includes four ends. Legs 14 are provided at two opposite ends out of these four ends, respectively.

[0019] The two legs 14 face each other. The two legs 14 each include two opposite ends. The cooking table 13 is located at one end of the two opposite ends included in the legs 14, and the plate portion 15 is located at the other end. The legs 14 may be configured to include a rectangular flat plate-shaped panel.

[0020] The plate portion 15 is, for example, in the shape of a rectangular flat plate. The size of the plate portion 15 on the plane may be approximately the same as the size of the cooking table 13 on the plane. The plate portion 15 includes four corner portions. Wheels 17 are provided at these four corner portions, respectively.

[0021] The accommodating portion 16 can accommodate the hydrogen module 20 and the fuel cell module 70 described later. The accommodating portion 16 may be specified as the region surrounded by the cooking table 13, the two leg portions 14, and the plate portion 15. When using the cooking system 2, the user can accommodate the hydrogen module 20 and the fuel cell module 70 together in the accommodating portion 16.

[0022] The four wheels 17 are provided on the cooking table 13. In the present embodiment, the four wheels 17 are provided on the cooking table 13 via the leg portions 14 and the plate portion 15. That is, in the present embodiment, the four wheels 17 are provided at the four corner portions of the plate portion 15, respectively. The four wheels 17 are each provided so as to be rotatable in the same direction. By providing the wheels 17, the user can easily transport the cooking system 2.

[0023] (Configuration of the supply system) As shown in FIG. 2, the supply system 3 includes a hydrogen module 20 and a fuel cell module 70. The hydrogen module 20 and the fuel cell module 70 are mechanically and electrically connected via a first connector 40 and a second connector 82 described later. Further, the hydrogen module 20 and the fuel cell module 70 are connected via a pipe 4 as shown in FIG. 2 so that hydrogen gas can flow. FIG. 2 shows a supply system 3 including two hydrogen modules 20 and one fuel cell module 70. However, the supply system 3 may include any number of hydrogen modules 20 and any number of fuel cell modules 70. The hydrogen module 20 supplies hydrogen gas to the cooking system 2 and the fuel cell module 70 as shown in FIG. 3. The fuel cell module 70 generates electric power using hydrogen gas and the like supplied from the hydrogen module 20. The fuel cell module 70 supplies the generated electric power to the hydrogen module 20 and the cooking system 2.

[0024] (Configuration of Hydrogen Module) The hydrogen module 20 houses a hydrogen cartridge 21 as shown in FIG. 1. The hydrogen cartridge 21 is cylindrical. High-pressure hydrogen gas at about 70 [MPa] is stored in the hydrogen cartridge 21. The hydrogen cartridge 21 includes a handle 21A.

[0025] As shown in FIG. 4, the hydrogen module 20 includes a first housing 22. The first housing 22 according to the present embodiment is configured to accommodate two hydrogen cartridges 21. However, the first housing 22 may be configured to accommodate at least one hydrogen cartridge 21.

[0026] The first housing 22 is portable. In the present disclosure, "portable" means a size that can be carried by a user. As an example, the size of the portable first housing 22 is 30 [cm] in width, 60 [cm] in height, and 60 [cm] in depth. By having such a size, the first housing 22 allows the user to mount the hydrogen module 20 in the trunk of a general vehicle. However, the size of the portable first housing 22 is not limited to this as long as it is a size that can be carried by the user. As another example, the size of the portable first housing 22 may be set within a range of width of 160 [cm] or less, height of 160 [cm] or less, and depth of 160 [cm] or less.

[0027] The first housing 22 is rectangular parallelepiped-shaped. The rectangular parallelepiped-shaped first housing 22 includes six faces and eight corners. The first housing 22 includes a first face 22A and a second face 22B opposite to the first face 22A. The first housing 22 may be formed of any material such as plastic or metal.

[0028] The first housing 22 includes a frame 23, two covers 24, two insertion ports 25, a shutter 26, a first handle 27, two wheels 28, and a take-out port 29. However, the first housing 22 only needs to have at least one insertion port 25 when the first housing 22 is configured to be able to accommodate at least one hydrogen cartridge 21. Also, the first housing 22 only needs to have at least one wheel 28.

[0029] The frame 23 is in the shape of a square cylinder. The frame 23 in the shape of a square cylinder includes four side surfaces and two openings. These four side surfaces include the first surface 22A and the second surface 22B described above. The frame 23 may be formed of any material such as plastic.

[0030] The cover 24 has transparency. The cover 24 may be formed of any material such as transparent plastic or glass. The degree of transparency of the cover 24, that is, the transparency, may be set assuming direct sunlight irradiated on the hydrogen module 20. The two covers 24 are respectively attached to the two openings of the frame 23. Since the cover 24 has transparency, the user can easily confirm whether the hydrogen cartridge 21 is accommodated inside the first housing 22 from the cover 24. Also, since the first housing 22 has the cover 24, it is possible to prevent dust from entering the inside of the first housing 22.

[0031] The two insertion ports 25 are located on the first surface 22A. The hydrogen cartridge 21 can be inserted through the insertion port 25. That is, the user can insert the hydrogen cartridge 21 into the first housing 22 through this insertion port 25. After the user inserts the hydrogen cartridge 21 into the first housing 22, the user rotates the handle 21A of the hydrogen cartridge 21 to rotate the hydrogen cartridge 21 90 degrees in a predetermined direction. The hydrogen module 20 is configured such that when the hydrogen cartridge 21 is rotated 90 degrees in a predetermined direction, the hydrogen cartridge 21 is fixed inside the first housing 22.

[0032] The shutter 26 can switch the insertion port 25 between an open state and a closed state. Before inserting the hydrogen cartridge 21 into the insertion port 25, the user operates the shutter 26 to open the insertion port 25. After inserting the hydrogen cartridge 21 into the insertion port 25, the user operates the shutter 26 to close the insertion port 25. Since the first housing 22 has the shutter 26, it is possible to prevent dust from entering the inside of the first housing 22 from the insertion port 25.

[0033] The first handle 27 can be taken in and out of the first housing 22. The first handle 27 may be provided in a sliding manner with respect to the frame 23. When the user transports the hydrogen module 20, the user takes out the first handle 27 from the first housing 22. By using the first handle 27, the user can easily transport the hydrogen module 20. Also, when the user accommodates the hydrogen module 20 in the accommodation part 16 of the cooking system 2 as shown in FIG. 2, the user puts the first handle 27 into the first housing 22. Since the first handle 27 is put into the first housing 22, the hydrogen module 20 can be compactly accommodated in the accommodation part 16.

[0034] The two wheels 28 are each provided on the first housing 22 so as to be rotatable in the same direction. Also, the two wheels 28 are each provided at the edge of the second surface 22B. In the present embodiment, the two wheels 28 are each provided at two corner parts as the edges of the second surface 22B. Here, the first surface 22A where the insertion port 25 is located and the second surface 22B where the wheels 28 are provided at its edge are opposed to each other. Therefore, as shown in FIG. 5, the user can rotate the first housing 22 around the wheels 28 to a position where the insertion port 25 faces upward. When the insertion port 25 faces upward, the user can easily insert the hydrogen cartridge 21 into the inside of the first housing 22 from above the insertion port 25.

[0035] Hydrogen gas stored in the hydrogen module 20 is taken out from the outlet 29. The outlet 29 is provided on the second surface 22B as shown in FIG. 2. The end of the pipe 4 is inserted into the outlet 29. The hydrogen gas of the hydrogen module 20 is supplied to the fuel cell module 70 and the cooking system 2 via the pipe 4. In FIG. 2, the pipe 4 is inserted into the outlet 29 of one of the two hydrogen modules 20 included in the supply system 3. However, the pipe 4 may be inserted into each of the outlets 29 of all the hydrogen modules 20 included in the supply system 3.

[0036] As shown in FIG. 6, the hydrogen module 20 includes a detection device 30, a first connector 40, a connection device 41, and a monitoring device 44. The hydrogen module 20 includes a pressure regulating system 50, a tank 51, a booster 52, a check valve 53, a switching valve 54, a filter 55, a check valve 56, and a braking device 60. In FIG. 6, the solid line indicates the flow of hydrogen gas. The broken line indicates the flow of control.

[0037] The detection device 30 is disposed inside the first housing 22. The detection device 30 can detect hydrogen gas leakage inside the first housing 22 or detect an abnormal temperature inside the first housing 22.

[0038] Power is supplied to the detection device 30 from the fuel cell module 70 via the connection device 41 described later. Each component such as the buzzer 31 described later included in the detection device 30 operates by the power supplied from the fuel cell module 70. By operating each component of the detection device 30 by the power supplied from the fuel cell module 70, the detection device 30 does not need to be provided with a battery. Since the detection device 30 does not include a battery, it is possible to prevent hydrogen gas leaked inside the first housing 22 from being ignited by the heat of the battery. Therefore, the hydrogen module 20 has excellent safety.

[0039] The detection device 30 includes a buzzer 31, a temperature sensor 32, a hydrogen sensor 33, a cooling fan 34, a communication unit 35, a memory unit 36, and a control unit 37.

[0040] The buzzer 31 is capable of outputting a buzzer sound. The buzzer 31 outputs a buzzer sound based on the control of the control unit 37.

[0041] The temperature sensor 32 can measure the temperature inside the first housing 22. The temperature sensor 32 outputs the measurement result of the temperature inside the first housing 22 to the control unit 37.

[0042] The hydrogen sensor 33 can detect hydrogen gas leaked inside the first housing 22. The hydrogen sensor 33 outputs a detection result indicating whether hydrogen gas has leaked inside the first housing 22 to the control unit 37.

[0043] The cooling fan 34 can cool the inside of the first housing 22. The cooling fan 34 blows external air into the first housing 22 based on the control of the control unit 37. The cooling fan 34 cools the inside of the first housing 22 by blowing external air into the first housing 22.

[0044] The communication unit 35 can perform short-range wireless communication. The communication unit 35 includes at least one communication module capable of performing short-range wireless communication. The communication module is a communication module corresponding to a short-range wireless communication standard such as Bluetooth (registered trademark) or Wi-Fi (registered trademark).

[0045] The storage unit 36 is configured to include at least one semiconductor memory, at least one magnetic memory, at least one optical memory, or a combination of at least two of these. The semiconductor memory is, for example, a RAM (Random Access Memory) or a ROM (Read Only Memory), etc. The RAM is, for example, an SRAM (Static Random Access Memory) or a DRAM (Dynamic Random Access Memory), etc. The ROM is, for example, an EEPROM (Electrically Erasable Programmable Read Only Memory), etc. The storage unit 36 may function as a main storage device, an auxiliary storage device, or a cache memory. The storage unit 36 stores the data used for the operation of the detection device 30 and the data obtained by the operation of the detection device 30.

[0046] The control unit 37 is configured to include at least one processor, at least one dedicated circuit, or a combination of these. The processor is a general-purpose processor such as a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit), or a dedicated processor specialized for specific processing. The dedicated circuit is, for example, an FPGA (Field-Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit), etc. While controlling each part of the detection device 30, the control unit 37 executes the processes related to the operation of the detection device 30.

[0047] The control unit 37 acquires, from the temperature sensor 32, data on the temperature inside the first housing 22 measured by the temperature sensor 32. When the temperature inside the acquired first housing 22 exceeds the temperature threshold value, the control unit 37 cools the inside of the first housing 22 by means of the cooling fan 34. The temperature threshold value may be set based on rules regarding the storage of hydrogen gas or the like. The temperature threshold value is, for example, 40°C. By cooling the inside of the first housing 22 when the temperature inside the first housing 22 exceeds the temperature threshold value, the hydrogen module 20 becomes suitable for storing the hydrogen cartridge 21 in which hydrogen gas is stored at high pressure.

[0048] The control unit 37 acquires, from the hydrogen sensor 33, the detection result of hydrogen gas. When hydrogen gas leaked inside the first housing 22 is detected by the hydrogen sensor 33, the control unit 37 executes a notification process. As an example of the notification process, the control unit 37 causes the buzzer 31 to output a buzzer sound. As another example of the notification process, the control unit 37 transmits, by means of the communication unit 35, an alert indicating the leakage of hydrogen gas to the user's terminal device. By executing the notification process when hydrogen gas leaked inside the first housing 22 is detected in this way, the hydrogen module 20 becomes excellent in safety.

[0049] The first connector 40 is configured to be connectable to the second connector 82 of the fuel cell module 70. Electric power may be supplied to the hydrogen module 20 from the fuel cell module 70 via the first connector 40 and the second connector 82.

[0050] The connection device 41 controls the connection with the fuel cell module 70 via the first connector 40. The connection device 41 includes a storage unit 42 and a control unit 43.

[0051] The memory unit 42 may be configured the same as or similar to the memory unit 36. The memory unit 42 stores data used for the operation of the connection device 41 and data obtained by the operation of the connection device 41. For example, the memory unit 42 stores the authentication information of the hydrogen module 20. The authentication information of the hydrogen module 20 may be any information as long as it indicates that the hydrogen module 20 is a genuine product.

[0052] The control unit 43 may be configured the same as or similar to the control unit 37.

[0053] When the control unit 43 detects that the first connector 40 is electrically connected to another connector, the control unit 43 acquires the authentication information of the hydrogen module 20 from the memory unit 42. The control unit 43 transmits the acquired authentication information of the hydrogen module 20 to another connector electrically connected to the first connector 40. With such a configuration, when the first connector 40 is electrically connected to the second connector 82 of the fuel cell module 70 as another connector, the authentication information of the hydrogen module 20 is transmitted from the hydrogen module 20 to the fuel cell module 70.

[0054] The control unit 43 can acquire a signal indicating a hydrogen gas shortage described later from the monitoring device 44. When the control unit 43 acquires a signal indicating a hydrogen gas shortage, the control unit 43 transmits the signal indicating a hydrogen gas shortage to the fuel cell module 70 via the first connector 40.

[0055] The monitoring device 44 monitors the remaining amount of hydrogen gas in the hydrogen cartridge 21. The monitoring device 44 includes a pressure sensor 45, a memory unit 46, and a control unit 47.

[0056] The pressure sensor 45 is disposed in an arbitrary high-pressure pipe between the hydrogen cartridge 21 and the pressure regulating system 50. High-pressure hydrogen gas stored in the hydrogen cartridge 21 flows through this high-pressure pipe. The pressure sensor 45 measures the pressure of the hydrogen gas flowing through the high-pressure pipe. The pressure sensor 45 outputs the measurement result of the hydrogen gas pressure to the control unit 47.

[0057] The memory unit 46 may be configured the same as or similar to the memory unit 36. The memory unit 46 stores data used for the operation of the monitoring device 44 and data obtained by the operation of the monitoring device 44.

[0058] The control unit 47 may be configured the same as or similar to the control unit 37.

[0059] The control unit 47 acquires the measurement result of the pressure of the hydrogen gas flowing through the high-pressure pipe from the pressure sensor 45. Based on the measurement result of the pressure of the hydrogen gas, the control unit 47 monitors the remaining amount of hydrogen gas in the hydrogen cartridge 21 that supplies hydrogen gas to the pressure regulating system 50. When the remaining amount of hydrogen gas in the hydrogen cartridge 21 that supplies hydrogen gas to the pressure regulating system 50 becomes equal to or less than the remaining amount threshold value, the control unit 47 determines whether another hydrogen cartridge 21 is filled with hydrogen gas. The remaining amount threshold value may be set in consideration of the time required for the control to switch the hydrogen cartridge 21 and the like. When the control unit 47 determines that another hydrogen cartridge 21 is filled with hydrogen gas, the control unit 47 controls the hydrogen cartridge 21 that supplies hydrogen gas to the pressure regulating system 50 to be switched to another hydrogen cartridge 21. On the other hand, when the control unit 47 determines that another hydrogen cartridge 21 is not filled with hydrogen gas, the control unit 47 outputs a signal indicating hydrogen gas depletion to the connection device 41.

[0060] Hydrogen gas is supplied to the pressure regulating system 50 from the hydrogen cartridge 21. The pressure regulating system 50 reduces the pressure of the supplied hydrogen gas to a predetermined pressure. The predetermined pressure may be set according to the type of the fuel cell 80 described later provided in the fuel cell module 70. For example, when hydrogen gas at a high pressure of about 70 [MPa] is supplied from the hydrogen cartridge 21 to the pressure regulating system 50, the pressure regulating system 50 reduces the pressure of the hydrogen gas to a pressure of about 0.2 [MPa]. The pressure regulating system 50 supplies the hydrogen gas after pressure reduction to the tank 51 and the outlet 29.

[0061] Hydrogen gas is supplied to the tank 51 from the pressure regulating system 50. The tank 51 temporarily holds the supplied hydrogen gas.

[0062] The booster 52 pressurizes the pressure of the hydrogen gas held in the tank 51 to a predetermined pressure. The predetermined pressure may be set according to the specifications of the braking device 60. The booster 52 supplies the pressurized hydrogen gas to the check valve 53.

[0063] The check valve 53 is connected between the booster 52 and the switching valve 54. The check valve 53 allows the inflow of hydrogen gas from the booster 52 to the switching valve 54. The check valve 53 blocks the inflow of hydrogen gas from the switching valve 54 to the booster 52.

[0064] The switching valve 54 can switch the connection between the check valve 53, the filter 55, and the braking device 60. Also, the switching valve 54 can mechanically or electrically detect whether the first handle 27 has been taken out of the first housing 22 or put into the first housing 22.

[0065] When the first handle 27 is put into the first housing 22, the switching valve 54 switches to supply the hydrogen gas from the hydrogen cartridge 21 to the braking device 60. In the present embodiment, when the switching valve 54 detects that the first handle 27 has been put into the first housing 22, it connects the check valve 53 and the braking device 60 and disconnects the filter 55 from the check valve 53 and the braking device 60. By connecting the check valve 53 and the braking device 60 in this way, the switching valve 54 switches to supply the hydrogen gas from the hydrogen cartridge 21 to the braking device 60.

[0066] When the first handle 27 is taken out from the first housing 22, the switching valve 54 switches to supply the hydrogen gas inside the braking device 60 to other modules connected to the first housing 22. In this embodiment, when the switching valve 54 detects that the first handle 27 has been taken out from the first housing 22, it connects the filter 55 and the braking device 60 and disconnects the check valve 53 from the filter 55 and the braking device 60. By connecting the filter 55 and the braking device 60 in this way, the switching valve 54 switches to supply the hydrogen gas inside the braking device 60 to other modules via the filter 55 and the check valve 56. Here, in this embodiment, the other modules to which the hydrogen gas from the braking device 60 is supplied are the fuel cell module 70 and the cooking system 2 connected to the first housing 22 via the outlet 29 and the pipe 4. However, this other module may be any module as long as it is a module connected to the first housing 22.

[0067] The filter 55 is supplied with hydrogen gas from the switching valve 54. The filter 55 removes foreign matters contained in the hydrogen gas. The filter 55 supplies the hydrogen gas after removing the foreign matters to the check valve 56.

[0068] The check valve 56 is connected between the filter 55 and the outlet 29. The check valve 56 allows the inflow of hydrogen gas from the filter 55 to the outlet 29. The check valve 56 blocks the inflow of hydrogen gas from the outlet 29 to the filter 55.

[0069] The braking device 60 brakes the wheel 28. The braking device 60 includes a rotating shaft 61 of the wheel 28, a rotor 62, two pads 63, and a cylinder 64.

[0070] The rotating shaft 61 is attached to the wheel 28. The rotor 62 is attached to the rotating shaft 61 of the wheel 28. The rotor 62 is positioned between the two pads 63. The two pads 63 are pressed against the rotor 62 by the pressure of the hydrogen gas supplied to the braking device 60. A part of the rotor 62 and the two pads 63 are arranged inside the cylinder 64.

[0071] The following describes the process flow during brake engagement and brake release.

[0072] <During brake engagement> When the user does not carry the hydrogen module 20, the first handle 27 is placed in the first housing 22. As described above, when the first handle 27 is placed in the first housing 22, the switching valve 54 switches to supply the hydrogen gas from the hydrogen cartridge 21 to the brake device 60. When the hydrogen gas from the hydrogen cartridge 21 is supplied to the brake device 60, the hydrogen gas flows into the cylinder 64 of the brake device 60. When the hydrogen gas flows into the cylinder 64, the pressure inside the cylinder 64 increases. When the pressure inside the cylinder 64 increases, the two pads 63 are pressed against the rotor 62. When the two pads 63 are pressed against the rotor 62, the brake is applied to the wheel 28.

[0073] When the user thus places the first handle 27 in the first housing 22, the brake device 60 applies the brake to the wheel 28. With such a configuration, the brake can be applied to the wheel 28 when the hydrogen module 20 is not being carried. Therefore, when the hydrogen module 20 is not being carried, it is possible to prevent the hydrogen module 20 from moving in an unintended direction. As a result, the hydrogen module 20 has excellent safety.

[0074] <During brake release> Before the user transports the hydrogen module, the user takes out the first handle 27 from the first housing 22. As described above, when the first handle 27 is taken out from the first housing 22, the switching valve 54 switches to supply the hydrogen gas inside the braking device 60 to other modules connected to the first housing 22. When the hydrogen gas inside the braking device 60, that is, the hydrogen gas inside the cylinder 64, is supplied to other modules, the pressure inside the cylinder 64 decreases. When the pressure inside the cylinder 64 decreases, the two pads 63 move away from the rotor 62. When the two pads 63 move away from the rotor 62, the brake on the wheel 28 is released.

[0075] When the first handle 27 is taken out from the first housing 22 in this way, the brake on the wheel 28 is released. Also, the hydrogen gas inside the braking device 60 is supplied to other modules, that is, in this embodiment, the fuel cell module 70 and the cooking system 2. With such a configuration, the hydrogen gas can be utilized without waste.

[0076] (Configuration of Fuel Cell Module) As shown in FIG. 7, the fuel cell module 70 includes a second housing 71. The second housing 71 is portable. The size of the second housing 71 may be the same as the size of the first housing 22. Since the size of the second housing 71 is the same as the size of the first housing 22, the fuel cell module 70 and the hydrogen module 20 can be highly compatible in the hydrogen cooking system 1. With such a configuration, the user can accommodate any number of hydrogen modules 20 and any number of fuel cell modules 70 in the accommodation section 16.

[0077] The second housing 71 has a rectangular parallelepiped shape. The rectangular parallelepiped-shaped second housing 71 includes six faces and eight corner portions. As shown in FIGS. 4 and 7, the second housing 71 includes a first face 71A and a second face 71B facing the first face 71A. The second housing 71 may be formed of any material such as plastic or metal.

[0078] As shown in FIG. 7, the second housing 71 has a second handle 72, two wheels 73, and an inlet 74. However, the second housing 71 only needs to have at least one wheel 73.

[0079] The second handle 72 can be inserted into and removed from the second housing 71. The second handle 72 may be provided in a sliding manner with respect to the second housing 71. The second handle 72 is provided at the end of the second surface 61B. When the user transports the fuel cell module 70, as shown in FIG. 7, the user takes out the second handle 72 from the second housing 71. By using the second handle 72, the user can easily transport the fuel cell module 70. Also, when the user accommodates the fuel cell module 70 in the accommodation part 16 of the cooking system 2 as shown in FIG. 1, the user puts the second handle 72 into the second housing 71. When the second handle 72 is put into the second housing 71, the fuel cell module 70 can be compactly accommodated in the accommodation part 16.

[0080] When the second handle 72 is taken out from the second housing 71, the second handle 72 outputs an electrical signal indicating that the second handle 72 has been taken out from the second housing 71 to the drive device 90 shown in FIG. 8 described later. When the second handle 72 is put into the second housing 71, the second handle 72 outputs an electrical signal indicating that the second handle 72 has been put into the second housing 71 to the drive device 90 shown in FIG. 8 described later.

[0081] The two wheels 73 are provided on the first housing 22 so as to be rotatable in the same direction. The two wheels 73 are provided at the end of the second surface 61B, on the side opposite to the end where the second handle 72 is provided. The two wheels 73 are respectively provided at two corner parts of the second surface 61B.

[0082] Hydrogen gas is introduced into the fuel cell module 70 from the inlet 74. The inlet 74 is provided on the second surface 61B as shown in FIG. 7. As shown in FIG. 2, the end of the pipe 4 is inserted into the inlet 74.

[0083] As shown in FIG. 8, the fuel cell module 70 includes a fuel cell 80, a battery 81, a second connector 82, a connection device 83, a drive device 90, and an input / output control device 100. In FIG. 8, solid lines indicate the flow of hydrogen gas or electric power. Dashed lines indicate the flow of control.

[0084] Hydrogen gas is supplied from the hydrogen module 20 to the fuel cell 80 through the intake port 74. The fuel cell 80 generates electric power through an electrochemical reaction using hydrogen gas and oxygen. The fuel cell 80 supplies the generated electric power to the battery 81.

[0085] The fuel cell 80 may be any fuel cell such as a PEFC (Polymer Electrolyte Fuel Cell). When the fuel cell 80 is a PEFC, it can start generating electricity relatively earlier after startup than, for example, when it is a SOFC (Solid Oxide Fuel Cell). The rated power generated by the fuel cell 80 is, for example, about 3000 [W].

[0086] The battery 81 is, for example, a secondary battery. The battery 81 may be any battery such as a lithium-ion battery.

[0087] The battery 81 is charged by the electric power generated by the fuel cell 80. The electric power charged in the battery 81 is supplied to the drive device 90. The electric power charged in the battery 81 may be supplied to the hydrogen module 20 and the cooking system 2. Or, the electric power generated by the fuel cell 80 may be directly supplied to the hydrogen module 20 and the cooking system 2.

[0088] The second connector 82 is configured to be connectable to the first connector 40 of the hydrogen module 20. The electric power charged in the battery 81 or the electric power generated by the fuel cell 80 may be supplied to the hydrogen module 20 through the second connector 82 and the first connector 40.

[0089] The connection device 83 controls the connection with the hydrogen module 20 via the second connector 82. The connection device 83 includes a storage unit 84 and a control unit 85.

[0090] The storage unit 84 may be configured the same as or similar to the storage unit 36 of the detection device 30 as shown in FIG. 6. The storage unit 84 stores data used for the operation of the connection device 83 and data obtained by the operation of the connection device 83. For example, the storage unit 84 stores authentication information of a regular hydrogen module 20.

[0091] The control unit 85 may be configured the same as or similar to the control unit 37 of the detection device 30 as shown in FIG. 6.

[0092] When another module is connected to the second connector 82, the control unit 85 executes an authentication process to authenticate the other module. As an example of the authentication process, the control unit 85 receives, via the second connector 82, the authentication information of another module connected to the second connector 82. For example, assume that the other module is the hydrogen module 20. In this case, as described above, when the first connector 40 of the hydrogen module 20 is electrically connected to the second connector 82, the authentication information of the hydrogen module 20 is transmitted from the hydrogen module 20 to the fuel cell module 70. In this case, the control unit 85 receives, via the second connector 82, the authentication information of the hydrogen module 20 as the authentication information of the other module. When the control unit 85 receives the authentication information of another module connected to the second connector 82, it authenticates the other module based on the authentication information of the regular hydrogen module 20 stored in the storage unit 84. As an example, when the received authentication information of the other module matches the authentication information of the regular hydrogen module 20 stored in the storage unit 84, the control unit 85 determines that the authentication of the other module is successful. On the other hand, when the received authentication information of the other module does not match the authentication information of the regular hydrogen module 20 stored in the storage unit 84, the control unit 85 determines that the authentication of the other module has failed.

[0093] When other modules are normal hydrogen modules in this way, the authentication of other modules will succeed. When other modules are non-normal hydrogen modules, the authentication of other modules will fail.

[0094] When the authentication of other modules is successful, the control unit 85 receives the supply of hydrogen gas from other modules, that is, the hydrogen module 20, to the fuel cell module 70. On the other hand, when the authentication of other modules fails, the control unit 85 does not receive the supply of hydrogen gas from other modules to the fuel cell module 70. With such a configuration, when an irregular hydrogen module is connected to the fuel cell module 70, it is possible to prevent the fuel cell module 70 from receiving the supply of hydrogen gas from the irregular hydrogen module. By preventing the fuel cell module 70 from receiving the supply of hydrogen gas from an irregular hydrogen module, the supply system 3 becomes excellent in safety.

[0095] The control unit 85 can receive a signal indicating a hydrogen gas cut-off from the hydrogen module 20 via the second connector 82. When the control unit 85 receives a signal indicating a hydrogen gas cut-off, it determines whether another hydrogen module 20 is connected to the fuel cell module 70 via the pipe 4 as described later with reference to FIG. 9. When the control unit 85 determines that another hydrogen module 20 is connected to the fuel cell module 70 and the other hydrogen module 20 is filled with hydrogen gas, it controls to receive the supply of hydrogen gas from the other hydrogen module 20. On the other hand, when the control unit 85 determines that another hydrogen module 20 is not connected to the fuel cell module 70, it outputs a signal indicating a hydrogen gas cut-off to the input / output control device 100.

[0096] The drive device 90 can drive the wheel 73. The drive device 90 includes a rotating shaft 91 of the wheel 73, a one-way clutch 92, a sensor 93, a motor 94, a storage unit 95, and a control unit 96.

[0097] The rotating shaft 91 is attached to the wheel 73. In FIG. 8, the rotating shaft 91 is attached to one wheel 73. However, when the second housing 71 includes two wheels 73, the rotating shaft 91 may be attached to the two wheels 73.

[0098] The one-way clutch 92 is attached to the rotating shaft 91 of the wheel 73. When a forward rotational force is applied to the rotating shaft 91, the one-way clutch 92 transmits the rotational force to the wheel 73. When a rotational force in a direction opposite to the forward direction is applied to the rotating shaft of the wheel 73, the one-way clutch 92 does not transmit the rotational force to the wheel 73. The forward direction is the direction in which the user transports the fuel cell module 70 using the second handle 72. The forward direction may be set according to the usage mode of the fuel cell module 70.

[0099] The sensor 93 can measure the traction force for pulling the second housing 71. For example, when the user is transporting the fuel cell module 70, a traction force is generated on the second housing 71.

[0100] The sensor 93 is configured to include, for example, a torque sensor. The sensor 93 is attached to the rotating shaft 91 of the wheel 73. The sensor 93 measures the amount of rotation of the wheel 73. Based on the measured amount of rotation of the wheel 73, the sensor 93 measures the traction force for pulling the second housing 71. The sensor 93 outputs the measurement result of the traction force to the control unit 96.

[0101] The motor 94 can rotate the wheel 73. The motor 94 can be driven by the electric power generated by the fuel cell 80. In the present embodiment, the motor 94 is attached to the rotating shaft 91 of the wheel 73. Also, electric power is supplied to the motor 94 from the battery 81. Based on the control of the control unit 96, the motor 94 rotates the wheel 73 via the rotating shaft 19.

[0102] The storage unit 95 may be configured the same as or similar to the storage unit 36 of the detection device 30 as shown in FIG. 6. The storage unit 95 stores data used for the operation of the drive device 90 and data obtained by the operation of the drive device 90.

[0103] The control unit 96 may be configured the same as or similar to the control unit 37 of the detection device 30 as shown in FIG. 6.

[0104] When the second handle 72 is taken out from the second housing 71, the control unit 96 acquires, from the sensor 93, the measurement result of the traction force measured by the sensor 93. In the present embodiment, when the control unit 96 acquires an electrical signal indicating that the second handle 72 has been taken out from the second housing 71 from the second handle 72, the control unit 96 acquires the measurement result of the traction force from the sensor 93. Based on the acquired measurement result of the traction force, the control unit 96 determines the rotational speed of the motor 94. The control unit 96 may determine the rotational speed of the motor 94 such that the ratio of the assist force to the traction force becomes a predetermined ratio. The assist force is the force that advances the second housing 71 in the forward direction when the motor 94 rotates. The predetermined ratio may be set according to the weight or usage mode of the fuel cell module 70 or the like. When the control unit 96 determines the rotational speed of the motor 94, the control unit 96 rotates the motor 94 at the determined rotational speed.

[0105] As described above, when the second handle 72 is taken out from the second housing 71, the control unit 96 rotates the motor 94 at the determined rotational speed. As described above, when the user transports the second housing 71, the user takes out the second handle 72 from the second housing 71. That is, when the user transports the second housing 71, the motor 94 can be rotated. With such a configuration, the user can easily transport the fuel cell module 70.

[0106] When the second handle 72 is inserted into the second housing 71, the control unit 96 stops the motor 94. In the present embodiment, when the control unit 96 acquires an electrical signal indicating that the second handle 72 has been inserted into the second housing 71 from the second handle 72, the control unit 96 stops the motor 94.

[0107] Thus, when the second handle 72 is inserted into the second housing 71, the control unit 96 stops the motor 94. As described above, when the user is not transporting the fuel cell module 70 or when generating power with the fuel cell module 70, the user inserts the second handle 72 into the second housing 71. That is, when not transporting the fuel cell module 70 or when generating power with the fuel cell module 70, the motor 94 can be stopped. With such a configuration, for example, when the fuel cell module 70 is generating power, it is possible to prevent the sensor 93 from measuring an unintended force applied to the second housing 71 as a traction force and driving the motor 94.

[0108] The input / output control device 100 includes a plug-in port 101, a switch 102, a notification unit 103, a communication unit 104, a storage unit 105, and a control unit 106.

[0109] A USB (Universal Serial Bus) terminal can be inserted into the plug-in port 101. The plug-in port 101 may be a USB port. The plug-in port 101 may be any of a USB Type-A port, a USB Type-B port, and a USB Type-C port. The plug-in port 101 may be disposed on the first surface 71A of the second housing 71 as shown in FIG. 4.

[0110] The switch 102 is a switch for starting or stopping the fuel cell 80. The switch 102 may be disposed on the first surface 71A of the second housing 71 as shown in FIG. 4. The user operates the switch 102 when wanting to start or stop the fuel cell 80.

[0111] The notification unit 103 notifies the user of information. The notification unit 103 is, for example, a lamp. When the notification unit 103 is a lamp, it notifies by lighting up. The notification unit 103 may be disposed on the first surface 71A of the second housing 71 as shown in FIG. 4.

[0112] The communication unit 104 is capable of performing short-range wireless communication. The communication unit 104 is configured to include at least one communication module capable of performing short-range wireless communication. The communication module is a communication module corresponding to a short-range wireless communication standard such as Bluetooth (registered trademark) or Wi-Fi (registered trademark).

[0113] The storage unit 105 may be configured the same as or similar to the storage unit 36 of the detection device 30 as shown in FIG. 6. The storage unit 105 stores data used for the operation of the input / output control device 100 and data obtained by the operation of the input / output control device 100.

[0114] The control unit 106 may be configured the same as or similar to the control unit 37 of the detection device 30 as shown in FIG. 6.

[0115] When a USB terminal is inserted into the insertion port 101, the control unit 106 controls so that the power of the battery 18 is supplied to the USB terminal inserted into the insertion port 101. With such a configuration, the user can charge the electronic device by inserting the USB terminal of any electronic device into the insertion port 101.

[0116] When the control unit 106 detects a user operation on the switch 102, the control unit 106 executes a process corresponding to the detected user operation. For example, when the user operation on the switch 102 is an operation for starting the fuel cell 80, the control unit 106 outputs a signal for starting the fuel cell 80 to the fuel cell 80. Further, when the user operation on the switch 102 is an operation for stopping the fuel cell 80, the control unit 106 outputs a signal for stopping the fuel cell 80 to the fuel cell 80.

[0117] When the control unit 106 activates the fuel cell 80, it causes the notification unit 103 to notify whether the fuel cell 80 has been successfully activated. For example, when the notification unit 103 is a lamp, when the fuel cell 80 is successfully activated, the control unit 106 causes the notification unit 103 to light up in blue. Also, when the notification unit 103 is a lamp and the fuel cell 80 fails to start up properly, the control unit 106 causes the notification unit 103 to light up in red. With such a configuration, after the user operates the switch 102, the user can check whether the fuel cell 80 has been successfully activated.

[0118] The control unit 106 transmits information regarding the operation of the fuel cell 80 to the user's terminal device via the communication unit 104. The information regarding the operation of the fuel cell 80 may include any information such as, for example, the amount of electric power generated by the fuel cell 80 or the remaining amount of hydrogen gas stored in the hydrogen module 20. With such a configuration, the user can grasp the operation status of the fuel cell 80 and the like.

[0119] The control unit 106 may receive various settings of the fuel cell 80 from the user's terminal device via the communication unit 104, and may accept the various settings of the fuel cell 80. The control unit 106 may execute processing according to the accepted various settings of the fuel cell 80.

[0120] The control unit 106 can obtain a signal indicating hydrogen gas depletion from the connection device 83. When the control unit 106 receives a signal indicating hydrogen gas depletion, it transmits a notification indicating hydrogen gas depletion to the user's terminal device via the communication unit 104. When the notification indicating hydrogen gas depletion is transmitted to the user's terminal device, the user's terminal device can display the notification indicating hydrogen gas depletion. With such a configuration, the user can know that the hydrogen gas in the hydrogen module 20 has been depleted.

[0121] As described above, the supply system 3 according to this embodiment includes a hydrogen module 20 and a fuel cell module 70. As shown in FIG. 4, the hydrogen module 20 includes a portable first housing 22 having at least one wheel 28. With such a first housing 22, the user can easily transport the hydrogen module 20. Further, as shown in FIG. 7, the fuel cell module 70 includes a portable second housing 71 having at least one wheel 73. With such a second housing 71, the user can easily transport the fuel cell module 70. Therefore, according to this embodiment, the portability of the supply system 3 can be improved.

[0122] Furthermore, in this embodiment, as shown in FIG. 4, the first housing 22 may further have a cover 24 with transparency. With such a configuration, as described above, the user can easily check whether the hydrogen cartridge 21 is housed inside the first housing 22 from the cover 24. Also, as described above, since the first housing 22 has the cover 24, it is possible to prevent dust from entering the inside of the first housing 22.

[0123] Also, in this embodiment, as shown in FIG. 4, the first housing 22 may further have an insertion port 25 and a shutter 26 capable of switching the insertion port 25 between an open state and a closed state. Since the first housing 22 has the shutter 26, as described above, it is possible to prevent dust from entering the inside of the first housing 22 from the insertion port 25.

[0124] Also, in the first housing 22 according to this embodiment, the wheel 28 may be provided at the edge of the second surface 22B. With such a configuration, as described above with reference to FIG. 5, the user can rotate the first housing 22 around the wheel 28 to a position where the insertion port 25 faces upward. When the insertion port 25 faces upward, the user can easily insert the hydrogen cartridge 21 into the first housing 22 from above the insertion port 25.

[0125] In addition, in the present embodiment, as shown in FIG. 6, the hydrogen module 20 may further include a cooling fan 34, a temperature sensor 32, and a control unit 37. When the temperature inside the first housing 22 measured by the temperature sensor 32 exceeds a temperature threshold value, the control unit 37 may cool the inside of the first housing 22 by means of the cooling fan 34. With such a configuration, as described above, the hydrogen module 20 is suitable for storing the hydrogen cartridge 21 in which hydrogen gas is stored at high pressure.

[0126] In addition, in the present embodiment, as shown in FIG. 6, the hydrogen module 20 may further include a hydrogen sensor 33 and a control unit 37. When hydrogen gas leaked inside the first housing 22 is detected by the hydrogen sensor 33, the control unit 37 may execute a notification process. With such a configuration, as described above, the hydrogen module 20 is excellent in safety.

[0127] In addition, in the present embodiment, as shown in FIG. 6, the buzzer 31, the temperature sensor 32, the hydrogen sensor 33, the cooling fan 34, the communication unit 35, the storage unit 36, and the control unit 37 may operate with electric power supplied from the fuel cell module 70. With such a configuration, as described above, the hydrogen module 20 is excellent in safety.

[0128] In addition, in the present embodiment, as shown in FIG. 4, the first housing 22 may further have a first handle 27 that can be inserted into and removed from the first housing 22. As described above, the user can easily carry the hydrogen module 20 by using the first handle 27. Also, as described above, when the user accommodates the hydrogen module 20 in the accommodation unit 16 of the cooking system 2 as shown in FIG. 2, the first handle 27 can be inserted into the first housing 22. By inserting the first handle 27 into the first housing 22, the hydrogen module 20 can be compactly accommodated in the accommodation unit 16.

[0129] Further, in the present embodiment, as shown in FIG. 6, the hydrogen module 20 may further include a brake device 60 and a switching valve 54. When the first handle 27 is inserted into the first housing 22, the switching valve 54 may supply hydrogen gas from the hydrogen cartridge 21 to the brake device 60. With such a configuration, as described above, when the hydrogen module 20 is not being transported, the wheels 28 can be braked. Therefore, as described above, the hydrogen module 20 is excellent in safety.

[0130] Further, in the present embodiment, when the first handle 27 is taken out of the first housing 22, the switching valve 54 may supply the hydrogen gas inside the brake device 60 to other modules connected to the first housing 22. With such a configuration, as described above, the hydrogen gas can be utilized without waste.

[0131] Further, in the present embodiment, as shown in FIG. 8, the fuel cell module 70 may include a second connector 82 and a control unit 85. When another module is connected to the second connector 82, the control unit 85 may execute an authentication process for authenticating the other module. When the authentication of the other module is successful, the control unit 85 may receive the supply of hydrogen gas from the other module, that is, the hydrogen module 20, to the fuel cell module 70. With such a configuration, as described above, the supply system 3 is excellent in safety.

[0132] Further, in the present embodiment, as shown in FIG. 7, the second housing 71 may further have a second handle 72 that can be inserted into and removed from the second housing 71. As described above, the user can easily transport the fuel cell module 70 by using the second handle 72. Also, as described above, when the user accommodates the fuel cell module 70 in the accommodation portion 16 of the cooking system 2 as shown in FIG. 2, the second handle 72 can be inserted into the second housing 71. When the second handle 72 is inserted into the second housing 71, the fuel cell module 70 can be compactly accommodated in the accommodation portion 16.

[0133] Also, in the present embodiment, as shown in FIG. 8, the fuel cell module 70 may further include a motor 94, a sensor 93, and a control unit 96. When the second handle 72 is taken out from the second housing 71, the control unit 96 may determine the rotation speed of the motor 94 based on the measurement result of the traction force measured by the sensor 93. The control unit 96 may rotate the motor 94 at the determined rotation speed. With such a configuration, as described above, the user can easily carry the fuel cell module 70. Further, when the second handle 72 is inserted into the second housing 71, the control unit 96 may stop the motor 94. With such a configuration, as described above, for example, when the fuel cell module 70 is generating power, it is possible to prevent the sensor 93 from measuring an unintended force applied to the second housing 71 as a traction force and driving the motor 94.

[0134] Also, in the present embodiment, as shown in FIG. 8, the fuel cell module 70 may further include a switch 102 for starting the fuel cell 80, a notification unit 103, and a control unit 106. The control unit 106 may cause the notification unit 103 to notify whether the fuel cell 80 has started up normally. With such a configuration, as described above, after the user operates the switch 102, the user can confirm whether the fuel cell 80 has started up normally.

[0135] Also, in the present embodiment, the fuel cell module 70 may further include a communication unit 104 capable of performing short-range wireless communication and a control unit 106. The control unit 106 may transmit information regarding the operation of the fuel cell 80 to the user's terminal device by the communication unit 104. With such a configuration, as described above, the user can grasp the operation status of the fuel cell 80 and the like.

[0136] Also, in the present embodiment, the size of the first housing 22 and the size of the second housing 71 may be the same. Since the size of the first housing 22 and the size of the second housing 71 are the same, as described above, the user can accommodate any number of hydrogen modules 20 and any number of fuel cell modules 70 in the accommodating portion 16.

[0137] Further, in the present embodiment, as shown in FIG. 3, the cooking system 2 may include a first cooker 10, a second cooker 11, and a pressure reducing valve 12. The pressure reducing valve 12 may reduce the pressure of the hydrogen gas supplied from the supply system 3 to a predetermined pressure. The second cooker 11 may be supplied with the hydrogen gas after being reduced in pressure by the pressure reducing valve 12. Here, generally, the pressure of the hydrogen gas that can be used in the second cooker 11 is often lower than the pressure of the hydrogen gas that can be used in the fuel cell module 70. Even when the pressure of the hydrogen gas that can be used in the second cooker 11 is low, since the cooking system 2 includes the pressure reducing valve 12, the second cooker 11 can be used using the hydrogen gas supplied from the supply system 3 to the cooking system 2.

[0138] Further, in the present embodiment, as shown in FIGS. 1 and 2, the cooking system 2 may further include a housing portion 16 capable of housing the hydrogen module 20 and the fuel cell module. With such a configuration, as described above, when the user uses the cooking system 2, the hydrogen module 20 and the fuel cell module 70 can be collectively housed in the housing portion 16.

[0139] Further, in the present embodiment, as shown in FIGS. 1 and 2, the cooking system 2 may further include a cooking table 13 and at least one wheel 17. Since the cooking system 2 includes the wheel 17, the user can easily carry the cooking system 2.

[0140] In addition, in the present embodiment, the hydrogen module 20 may include a plurality of hydrogen cartridges 21. When the remaining amount of hydrogen gas in the hydrogen cartridge 21 that supplies hydrogen gas to the fuel cell module 70 becomes equal to or less than the remaining amount threshold value, the hydrogen module 20 may switch the hydrogen cartridge 21 that supplies hydrogen gas to the fuel cell module 70 to another hydrogen cartridge 21. This another hydrogen cartridge 21 may be filled with hydrogen gas. As an example of the process, the hydrogen module 20 may include the monitoring device 44 as described above with reference to FIG. 6. As described above, when the remaining amount of hydrogen gas in the hydrogen cartridge 21 that supplies hydrogen gas to the pressure regulating system 50 becomes equal to or less than the remaining amount threshold value, the control unit 47 of the monitoring device 44 may determine whether or not another hydrogen cartridge 21 is filled with hydrogen gas. When the control unit 47 determines that another hydrogen cartridge 21 is filled with hydrogen gas, the control unit 47 may control the hydrogen cartridge 21 that supplies hydrogen gas to the pressure regulating system 50 to be switched to another hydrogen cartridge 21. With such a configuration, when the remaining amount of hydrogen gas in the hydrogen cartridge 21 that supplies hydrogen gas to the fuel cell module 70 becomes equal to or less than the remaining amount threshold value, the hydrogen cartridge 21 that supplies hydrogen gas to the fuel cell module 70 is switched to another hydrogen cartridge 21. By being switched to another hydrogen cartridge 21 in this way, the user can continue to use the cooking system 2.

[0141] Further, in this embodiment, the supply system 3 may include a plurality of hydrogen modules 20. In this case, when the remaining amount of all the hydrogen gas in at least one hydrogen cartridge 21 provided in the hydrogen module 20 that supplies hydrogen gas to the fuel cell module 70 becomes equal to or less than the remaining amount threshold, a signal indicating hydrogen gas depletion may be transmitted to the fuel cell module 70. When the fuel cell module 70 receives a signal indicating hydrogen gas depletion, when hydrogen gas is filled in a hydrogen module 20 different from the hydrogen module 20 that transmitted the signal indicating hydrogen gas depletion, it may be controlled to receive the supply of hydrogen gas from the other hydrogen module. By being switched to another hydrogen module 20 in this way, the user can continue to use the cooking system 2.

[0142] Although the present disclosure has been described based on the drawings and examples, it should be noted that those skilled in the art may make various modifications and alterations based on the present disclosure. Therefore, it should be noted that these modifications and alterations are included in the scope of the present disclosure. For example, the functions and the like included in each component or each step can be rearranged so as not to be logically contradictory, and a plurality of components or steps can be combined into one or divided.

[0143] In the above-described embodiment, as shown in FIG. 1, the housing portion 16 as shown in FIG. 1 has been described as housing the hydrogen module 20 and the fuel cell module 70. However, other modules other than the hydrogen module 20 and the fuel cell module 70 may be housed in the housing portion 16. The housing of the other module may be the same size as the size of the first housing 22 and the size of the second housing 71. For example, a refrigerator may be housed in the housing portion 16 as another module.

[0144] In the above-described embodiment, as shown in FIG. 4, the hydrogen module 20 and the fuel cell module 70 have been described as being connected via the first connector 40 and the second connector 82. However, a plurality of hydrogen modules 20 may be connected via a connector. Hereinafter, an example of this will be described with reference to FIG. 9.

[0145] Fig. 9 shows the external configuration of the hydrogen modules 120A and 120B according to a modification of the present disclosure. Hereinafter, when the hydrogen modules 120A and 120B are not particularly distinguished, they are also simply described as "hydrogen module 120". The hydrogen module 120 further includes a third connector 110. In Fig. 9, the pipe 4 as shown in Fig. 2 may include four or more ends.

[0146] The third connector 110 of the hydrogen module 120 is configured to be connectable to the first connector 40 of another hydrogen module 120. In Fig. 9, the third connector 110 of the hydrogen module 120A is connected to the first connector 40 of the hydrogen module 120B. Also, the first connector 40 of the hydrogen module 120A is connected to the second connector 82 of the fuel cell module 70.

[0147] The connection device 41 of the hydrogen module 120 as shown in Fig. 6 mediates communication between another hydrogen module 120 connected to itself via the third connector 110 and the fuel cell module 70 connected to itself via the first connector 40. The connection device 41 of the hydrogen module 120 may control so that the power from the fuel cell module 70 connected to itself is supplied to another hydrogen module 20 connected to itself. In Fig. 9, the control unit 43 of the connection device 41 of the hydrogen module 120A mediates communication between the fuel cell module 70 and the hydrogen module 120B. Also, the control unit 43 of the connection device 41 of the hydrogen module 120A controls so that the power from the fuel cell module 70 is supplied to the hydrogen module 120B.

[0148] The connection device 41 of the hydrogen module 120 may include a communication unit that is the same as or similar to the communication unit 35 as shown in Fig. 6.

[0149] At the outlet 29 shown in FIG. 2 of each of the hydrogen modules 120A and 120B, the end of the pipe 4 is inserted. With such a configuration, the hydrogen modules 120A and 120B, the fuel cell module 70, and the cooking system 2 are connected via the pipe 4. When the hydrogen modules 120A and 120B and the fuel cell module 70 etc. are connected via the pipe 4, the user may operate the terminal device and transmit a predetermined signal from the terminal device to the hydrogen modules 120A and 120B. The predetermined signal may be a signal indicating that the hydrogen module 120 and the fuel cell module 70 are connected. The control unit 43 of the connection device 41 of the hydrogen module 120 can detect that the own device and the fuel cell module 70 are connected via the pipe 4 by receiving this predetermined signal by the communication unit. The control unit 43 of the hydrogen module 120 may transmit a signal indicating that the own device and the fuel cell module 70 are connected via the pipe 4 to the fuel cell module 70 via another hydrogen module 120 in response to an instruction from the fuel cell module 70. Further, the control unit 43 of the hydrogen module 120 may transmit a signal indicating that the own device is filled with hydrogen gas to the fuel cell module 70 via another hydrogen module 120 in response to an instruction from the fuel cell module 70.

[0150] By connecting a plurality of hydrogen modules 120 in this way, the fuel cell module 70 can communicate with another hydrogen module 120 via the hydrogen module 120 connected to the own device. With such a configuration, for example, the following processing can be executed.

[0151] The control unit 85 of the fuel cell module 70 shall receive a signal indicating a hydrogen gas shortage from the hydrogen module 120A via the second connector 82. In this case, the control unit 85 communicates with the hydrogen module 120B via the hydrogen module 120A to determine whether another hydrogen module 120B is connected to the fuel cell module 70 via the pipe 4. For example, the control unit 85 shall receive a signal from the hydrogen module 120B via the hydrogen module 120A indicating that the hydrogen module 120B and the fuel cell module 70 are connected via the pipe 4. In this case, the control unit 85 determines that the hydrogen module 120B is connected to the fuel cell module 70 via the pipe 4. When the control unit 85 determines that another hydrogen module 120B is connected to the fuel cell module 70 via the pipe 4 and determines that the other hydrogen module 120B is filled with hydrogen gas, it controls to receive the supply of hydrogen gas from the hydrogen module 120B. For example, the control unit 85 shall receive a signal from the hydrogen module 120B via the hydrogen module 120A indicating that the hydrogen module 120B is filled with hydrogen gas. In this case, the control unit 85 determines that the hydrogen module 120B is filled with hydrogen gas and transmits a signal instructing the supply of hydrogen gas to the hydrogen module 120B via the hydrogen module 120A. With such a configuration, even when the hydrogen gas in the hydrogen module 120A runs out, the hydrogen gas in the hydrogen module 120B can be supplied to the fuel cell module 70 and the cooking system 2 via the pipe 4.

[0152] Some of the embodiments of the present disclosure are illustrated below. However, it should be noted that the embodiments of the present disclosure are not limited thereto. [Appendix 1] A hydrogen module comprising a portable first housing having at least one wheel and at least one hydrogen cartridge housed in the first housing, A fuel cell module comprising a portable second housing having at least one wheel and a fuel cell housed in the second housing including The fuel cell module and the hydrogen module are mechanically and electrically connected, The fuel cell is a supply system capable of generating electricity by hydrogen gas supplied from the hydrogen module. [Appendix 2] The first housing further has a cover having transparency, and the supply system according to Appendix 1. [Appendix 3] The first housing further has an insertion port into which the hydrogen cartridge can be inserted, and a shutter capable of switching the insertion port between an open state and a closed state, and the supply system according to Appendix 1 or 2. [Appendix 4] The first housing includes a first surface where the insertion port is located and a second surface facing the first surface, The at least one wheel is provided at an edge of the second surface, and the supply system according to any one of Appendices 1 to 3. [Appendix 5] The hydrogen module A cooling fan capable of cooling the inside of the first housing, A temperature sensor capable of measuring the temperature inside the first housing, When the temperature inside the first housing measured by the temperature sensor exceeds a temperature threshold, the supply system according to any one of Appendices 1 to 4, further comprising a control unit for cooling the inside of the first housing by the cooling fan. [Appendix 6] The cooling fan, the temperature sensor, and the control unit operate by electric power supplied from the fuel cell module, and the supply system according to Appendix 5. [Appendix 7] The hydrogen module A hydrogen sensor capable of detecting hydrogen gas leaked into the first housing, When hydrogen gas leaked into the first housing is detected by the hydrogen sensor, the supply system according to any one of Appendices 1 to 6, further comprising a control unit for executing a notification process. [Appendix 8] The hydrogen sensor and the control unit operate with the power supplied from the fuel cell module, and the supply system according to Appendix 7. [Appendix 9] The first housing further has a first handle that can be inserted into and removed from the first housing, and the supply system according to any one of Appendices 1 to 8. [Appendix 10] The hydrogen module a braking device, and a switching valve that supplies hydrogen gas from the hydrogen cartridge to the braking device when the first handle is inserted into the first housing, and the supply system according to any one of Appendices 1 to 9. The braking device has a rotor attached to the rotating shaft of the wheel, and a pad that is pressed against the rotor by the pressure of the hydrogen gas supplied to the braking device, and the supply system according to any one of Appendices 1 to 9. [Appendix 11] When the first handle is taken out of the first housing, the switching valve supplies the hydrogen gas inside the braking device to another module connected to the first housing, and the supply system according to Appendix 10. [Appendix 12] The fuel cell module has a first connector, and a control unit that executes an authentication process for authenticating another module when the first connector is connected to the other module. When the authentication of the other module is successful, the other module is a regular hydrogen module, and when the authentication of the other module is successful, the control unit receives the supply of hydrogen gas from the other module to the fuel cell module, and the supply system according to any one of Appendices 1 to 11. [Appendix 13] The second housing further has a second handle that can be inserted into and removed from the second housing, and the supply system according to any one of Appendices 1 to 12. [Appendix 14] The fuel cell module At least one wheel of the second housing, which is a rotatable motor driven by the electric power generated by the fuel cell, A sensor capable of measuring the traction force for pulling the second housing, When the second handle is extended from the second housing, a control unit that determines the rotational speed of the motor based on the measurement result of the traction force measured by the sensor and rotates the motor at the determined rotational speed, the supply system according to any one of Appendices 1 to 13. [Appendix 15] The control unit stops the motor when the second handle is inserted into the second housing, the supply system according to Appendix 14. [Appendix 16] The fuel cell module, A switch for starting the fuel cell, A notification unit, The supply system according to any one of Appendices 1 to 15, further comprising a control unit for causing the notification unit to notify whether the fuel cell has started up normally. [Appendix 17] The fuel cell module, A communication unit capable of performing short-range wireless communication, The supply system according to any one of Appendices 1 to 16, further comprising a control unit for transmitting information regarding the operation of the fuel cell to a user's terminal device by the communication unit. [Appendix 18] The size of the first housing and the size of the second housing are the same, the supply system according to any one of Appendices 1 to 17. [Appendix 19] Including the supply system according to any one of Appendices 1 to 18 and a cooking system, The cooking system, A first cooker capable of performing heat cooking by the electric power supplied from the supply system, A pressure reducing valve for reducing the pressure of the hydrogen gas supplied from the supply system to a predetermined pressure, A hydrogen cooking system including a second cooker capable of performing cooking by heating by burning hydrogen gas after being depressurized by the pressure reducing valve. [Appendix 20] The cooking system according to Appendix 19, further including a housing capable of housing the hydrogen module and the fuel cell module. [Appendix 21] The cooking system a cooking table on which the first cooker and the second cooker are arranged, The hydrogen cooking system according to Appendix 19 or 20, further including at least one wheel. [Appendix 22] The hydrogen module includes a plurality of hydrogen cartridges as the at least one hydrogen cartridge, Among the plurality of hydrogen cartridges, when the remaining amount of hydrogen gas in the hydrogen cartridge supplying hydrogen gas to the fuel cell module reaches or falls below a remaining amount threshold value and another hydrogen cartridge is filled with hydrogen gas, the hydrogen cooking system according to any one of Appendices 19 to 21, which switches the hydrogen cartridge supplying hydrogen gas to the fuel cell module to the other hydrogen cartridge. [Appendix 23] The supply system includes a plurality of the hydrogen modules, Among the plurality of hydrogen modules, the hydrogen module supplying hydrogen gas to the fuel cell module transmits a signal indicating out-of-hydrogen gas to the fuel cell module when the remaining amount of all hydrogen gas in the at least one hydrogen cartridge provided in the self-device reaches or falls below a remaining amount threshold value, When the fuel cell module receives the signal indicating out-of-hydrogen gas, the hydrogen cooking system according to any one of Appendices 19 to 22, which controls to receive hydrogen gas supply from another hydrogen module when hydrogen gas is filled in another hydrogen module different from the hydrogen module that transmitted the signal indicating out-of-hydrogen gas.

Explanation of Signs

[0153] 1: Hydrogen cooking system, 2: Cooking system, 3: Supply system, 4: Pipe, 10: First cooker, 11: Second cooker, 12: Pressure reducing valve, 13: Cooking table, 14: Legs, 15: Plate part, 16: Storage part, 17: Wheels, 18: Battery, 20, 120A, 120B, 120: Hydrogen module, 21: Hydrogen cartridge, 21A: Handle, 22: First housing, 23: Frame, 24: Cover, 25: Insertion port, 26: Shutter, 27: First handle, 28: Wheels, 29: Removal port, 30: Detection device, 31: Buzzer, 32: Temperature sensor, 33: Hydrogen sensor, 34: Cooling fan, 35: Communication part, 36: Memory part, 37: Control part, 40: First connector, 41: Connection device, 42: Memory part, 43: Control part, 44: Monitoring device, 45: Pressure sensor, 46: Memory part, 47: Control part, 50: Pressure regulating system, 51: Tank, 52: Booster, 53: Check valve, 54: Changeover valve, 55: Filter, 56: Check valve, 60: Brake device, 61: Rotating shaft, 62: Rotor, 63: Pad, 64: Cylinder, 70: Fuel cell module, 71: Second housing, 72: Second handle, 73: Wheels, 74: Intake port, 80: Fuel cell, 81: Battery, 82: Second connector, 83: Connection device, 84: Memory part, 85: Control part, 90: Driving device, 91: Rotating shaft, 92: One-way clutch, 93: Sensor, 94: Motor, 95: Memory part, 96: Control part, 100: Input / output control device, 101: Insertion port, 102: Switch, 103: Notification part, 104: Communication part, 105: Memory part, 106: Control part, Third connector 110

Claims

1. A hydrogen module comprising a portable first housing having at least one wheel and at least one hydrogen cartridge housed in the first housing, a fuel cell module comprising a portable second housing having at least one wheel and a fuel cell housed in the second housing and including wherein the fuel cell module and the hydrogen module are mechanically and electrically connected, the fuel cell is capable of generating electricity with hydrogen gas supplied from the hydrogen module, the fuel cell module further comprises a first connector, and a control unit that executes an authentication process for authenticating another module when the first connector is connected to the other module, and when the authentication of the other module is successful, the other module is a legitimate hydrogen module, and the control unit receives the supply of hydrogen gas from the other module to the fuel cell module when the authentication of the other module is successful, a supply system.

2. The supply system according to claim 1, wherein the first housing further has a cover having transparency.

3. The supply system according to claim 1, wherein the first housing further has an insertion port into which the hydrogen cartridge can be inserted and a shutter capable of switching the insertion port between an open state and a closed state.

4. The first housing includes a first surface where the insertion port is located and a second surface facing the first surface, and the at least one wheel is provided at an edge of the second surface, the supply system according to claim 3.

5. The hydrogen module further comprises a cooling fan capable of cooling the inside of the first housing, a temperature sensor capable of measuring the temperature inside the first housing, and a control unit that cools the inside of the first housing with the cooling fan when the temperature inside the first housing measured by the temperature sensor exceeds a temperature threshold, the supply system according to claim 1.

6. The supply system according to claim 5, wherein the cooling fan, the temperature sensor, and the control unit operate with electric power supplied from the fuel cell module.

7. The hydrogen module further comprises a hydrogen sensor capable of detecting hydrogen gas leaked into the first housing, and a control unit that executes a notification process when hydrogen gas leaked into the first housing is detected by the hydrogen sensor, the supply system according to claim 1.

8. The hydrogen sensor and the control unit operate on the power supplied from the fuel cell module, and the supply system according to claim 7.

9. The first housing further has a first handle that can be inserted into and removed from the first housing, and the supply system according to claim 1.

10. The hydrogen module a braking device, and a switching valve that supplies hydrogen gas from the hydrogen cartridge to the braking device when the first handle is inserted into the first housing, and the supply system according to claim 9. The braking device has a rotor attached to the rotating shaft of the wheel, and a pad pressed against the rotor by the pressure of the hydrogen gas supplied to the braking device, and the supply system according to claim 9.

11. When the first handle is taken out of the first housing, the switching valve supplies the hydrogen gas inside the braking device to another module connected to the first housing, and the supply system according to claim 10.

12. The second housing further includes a second handle that can be inserted into and removed from the second housing, and the supply system according to claim 1.

13. The fuel cell module is a motor capable of rotating at least one wheel of the second housing and can be driven by the power generated by the fuel cell, a sensor capable of measuring the traction force for towing the second housing, and a control unit that determines the rotational speed of the motor based on the measurement result of the traction force measured by the sensor and rotates the motor at the determined rotational speed when the second handle is taken out of the second housing, and the supply system according to claim 12.

14. When the second handle is inserted into the second housing, the control unit stops the motor, and the supply system according to claim 13.

15. The fuel cell module has a switch for starting the fuel cell, a notification unit, and a control unit that causes the notification unit to notify whether the fuel cell has started up normally, and the supply system according to claim 1.

16. The fuel cell module has a communication unit capable of performing short-range wireless communication, and a control unit that transmits information regarding the operation of the fuel cell to a user's terminal device by the communication unit, and the supply system according to claim 1.

17. A hydrogen module comprising a portable first housing having at least one wheel and at least one hydrogen cartridge housed in the first housing, A fuel cell module comprising a portable second housing having at least one wheel and a fuel cell housed in the second housing Including, The fuel cell module and the hydrogen module are mechanically and electrically connected, The fuel cell is capable of generating electricity with hydrogen gas supplied from the hydrogen module, The first housing further has a first handle that can be inserted into and removed from the first housing, The hydrogen module, A braking device, A switching valve that supplies hydrogen gas from the hydrogen cartridge to the braking device when the first handle is inserted into the first housing, The braking device, A rotor attached to the rotation axis of the wheel, A supply system comprising a pad pressed against the rotor by the pressure of hydrogen gas supplied to the braking device.

18. A hydrogen module comprising a portable first housing having at least one wheel and at least one hydrogen cartridge housed in the first housing, A fuel cell module comprising a portable second housing having at least one wheel and a fuel cell housed in the second housing Including, The fuel cell module and the hydrogen module are mechanically and electrically connected, The fuel cell is capable of generating electricity with hydrogen gas supplied from the hydrogen module, The second housing further has a second handle that can be inserted into and removed from the second housing, The fuel cell module, A motor capable of rotating the at least one wheel of the second housing, the motor being drivable by the electric power generated by the fuel cell, A sensor capable of measuring the traction force for towing the second housing, A control unit that determines the rotational speed of the motor based on the measurement result of the traction force measured by the sensor when the second handle is taken out of the second housing and rotates the motor at the determined rotational speed. A supply system further comprising.

19. The size of the first housing and the size of the second housing are the same. The supply system according to any one of claims 1 to 18.

20. Including the supply system according to claim 1 and a cooking system, The cooking system, A first cooker capable of performing cooking by heating with the power supplied from the supply system; A pressure reducing valve that reduces the pressure of the hydrogen gas supplied from the supply system to a predetermined pressure; A hydrogen cooking system including a second cooker capable of performing cooking by heating by burning the hydrogen gas after being decompressed by the pressure reducing valve.

21. The cooking system according to claim 20, further including a housing portion capable of housing the hydrogen module and the fuel cell module.

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