Hydrogen storage device and vehicle

Abstract

The utility model discloses a hydrogen storage device and a vehicle, and relates to the technical field of hydrogen storage. The hydrogen storage device comprises two hydrogen bottle assemblies, a vaporizer and a heater. The two hydrogen bottle assemblies are arranged on the two opposite sides of a vehicle girder respectively and connected with the girder, at least one of the two hydrogen bottle assemblies is provided with an inflation inlet, the two hydrogen bottle assemblies communicate with each other, and the heater communicates with the vaporizer and is used for heating a heat exchange medium in the vaporizer. The two hydrogen cylinder assemblies are arranged on the two opposite sides of the vehicle girder respectively, the spaces on the two sides of the girder can be fully utilized, the length of the whole vehicle can be shortened, the turning radius can be reduced, the two hydrogen cylinder assemblies share one vaporizer and one heater, the number of parts can be reduced, the integration degree can be improved, and cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage, in particular to a hydrogen storage device and a vehicle having the hydrogen storage device. Background Art

[0002] At present, both at home and abroad are exploring demonstration circles for liquid hydrogen applications starting from the entire industrial chain of liquid hydrogen production, storage, transportation, and utilization. In related technologies, the hydrogen storage device of a vehicle is arranged at the middle position between the vehicle head and the carriage, increasing the overall vehicle length, enlarging the turning radius of the vehicle, and making it difficult for the vehicle to turn. In addition, in related technologies, multiple hydrogen storage tanks each have a set of separate vaporization, heating, and hydrogen storage systems, which will cause too many components in the hydrogen storage device, resulting in poor integration of the hydrogen storage device. Content of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to propose a hydrogen storage device, which is beneficial to shortening the overall vehicle length and has high integration.

[0004] The utility model further proposes a vehicle having the hydrogen storage device.

[0005] The hydrogen storage device according to an embodiment of the utility model includes: two hydrogen cylinder assemblies, the two hydrogen cylinder assemblies are respectively arranged on opposite sides of the vehicle frame and are both connected to the frame, at least one of the two hydrogen cylinder assemblies has an inflation port, and the two hydrogen cylinder assemblies are communicated with each other; a vaporizer and a heater, the vaporizer is communicated with both of the two hydrogen cylinder assemblies and is used for vaporizing the fuel discharged from the hydrogen cylinder assemblies, and the heater is communicated with the vaporizer and is used for heating the heat exchange medium in the vaporizer.

[0006] For the hydrogen storage device according to an embodiment of the utility model, by arranging the two hydrogen cylinder assemblies on opposite sides of the vehicle frame respectively, the space on both sides of the frame can be fully utilized, which is beneficial to shortening the overall vehicle length and reducing the turning radius. Moreover, the two hydrogen cylinder assemblies share a set of vaporizer and heater, which can reduce the number of components, improve the integration, and is also beneficial to cost saving.

[0007] According to some embodiments of the present application, the hydrogen cylinder assembly includes a mounting bracket, a hydrogen cylinder body, and a control box. The mounting brackets of the two hydrogen cylinder assemblies are respectively adapted to be connected to opposite sides of the frame. The hydrogen cylinder body is used for storing the fuel. The two control boxes are communicated with each other, and one of the control boxes is communicated between one of the hydrogen cylinder bodies and the vaporizer, and the other control box is communicated between the other hydrogen cylinder body and the vaporizer.

[0008] According to some embodiments of the present application, the hydrogen cylinder body is connected to the corresponding control box and they are jointly tied to the corresponding mounting bracket.

[0009] According to some embodiments of the present application, the hydrogen storage device further includes: at least one filling pipe, and the filling pipe is communicated between two of the control boxes.

[0010] According to some embodiments of the present application, the hydrogen storage device further includes: a first liquid outlet pipe, a second liquid outlet pipe, a first pressurized gas outlet pipe, a first pressurized gas return pipe, a second pressurized gas outlet pipe, and a second pressurized gas return pipe; the two control boxes are respectively connected to the fuel inlet of the vaporizer through the first liquid outlet pipe and the second liquid outlet pipe; among the two control boxes, one of the control boxes forms a first pressurized circuit with the vaporizer and one of the hydrogen cylinder bodies through the first pressurized gas outlet pipe and the first pressurized gas return pipe, and the other control box forms a second pressurized circuit with the vaporizer and the other hydrogen cylinder body through the second pressurized gas outlet pipe and the second pressurized gas return pipe.

[0011] According to some embodiments of the present application, the hydrogen storage device further includes: a buffer tank, the buffer tank is communicated with the vaporizer, and the buffer tank is used for storing the fuel vaporized by the vaporizer and sending the fuel after buffering and stabilizing pressure into the fuel cell.

[0012] According to some embodiments of the present application, the hydrogen storage device further includes: an assembly bracket, the assembly bracket is adapted to be connected to the girder, the vaporizer, the heater, and the buffer tank are all arranged on one side of one of the hydrogen cylinder bodies facing the girder through the assembly bracket, and along the height direction of the hydrogen storage device, the orthographic projection of the vaporizer and / or the heater and / or the buffer tank has an overlapping area with the orthographic projection of the corresponding hydrogen cylinder body.

[0013] According to some embodiments of the present application, the hydrogen storage device further includes: a pressure pipe, the buffer tank is communicated with the control box through the pressure pipe, and the control box is used for detecting and displaying the pressure in the buffer tank; and / or, the hydrogen storage device further includes: a combined valve, a replacement pipe, and a discharge pipe, the buffer tank is connected to the combined valve, the combined valve is adapted to be connected to the fuel cell and is communicated with the replacement pipe, and the replacement pipe is communicated with the discharge pipe; and / or, the hydrogen storage device further includes: a relief pipe, a safety valve, a check valve, and a discharge pipe, the buffer tank is communicated with the relief pipe, the safety valve is provided on the relief pipe, and the safety valve is communicated with the discharge pipe through the check valve.

[0014] According to some embodiments of the present application, the hydrogen storage device further includes a first heat exchange medium circuit and a control valve. The first heat exchange medium circuit is communicated with the vaporizer, and the coolant of the fuel cell can enter the vaporizer through the first heat exchange medium circuit to heat the heat exchange medium in the vaporizer. The control valve is arranged in the first heat exchange medium circuit. The hydrogen storage device further includes a second heat exchange medium circuit, a water inlet pipe, a water pump, and a water outlet pipe. The second heat exchange medium circuit is communicated with the vaporizer. The water inlet pipe, the water pump, the water outlet pipe, and the heater are all arranged in the second heat exchange medium circuit, and the heater is used to heat the heat exchange medium in the second heat exchange medium circuit.

[0015] A vehicle according to an embodiment of the present application includes the above hydrogen storage device. The two hydrogen cylinder assemblies of the hydrogen storage device are respectively arranged on opposite sides of the vehicle frame and are both connected to the frame.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0018] Figure 1 is a schematic diagram of the hydrogen storage device according to an embodiment of the present utility model;

[0019] Figure 2 is a schematic diagram of the first hydrogen cylinder assembly according to an embodiment of the present utility model;

[0020] Figure 3 is a schematic diagram of the second hydrogen cylinder assembly according to an embodiment of the present utility model;

[0021] Figure 4 is a schematic diagram of the second hydrogen cylinder assembly from another angle according to an embodiment of the present utility model.

[0022] REFERENCE SIGNS:

[0023] First hydrogen cylinder assembly 1; Second hydrogen cylinder assembly 2; Filling pipe 3; Second liquid outlet pipe 4; First mounting bracket 6; First hydrogen cylinder strap 7; First hydrogen cylinder body 8; First discharge pipe 9; First check valve 10; First control box 11; Displacement pipe 12; First supercharging outlet pipe 13; First liquid outlet pipe 14; First supercharging return pipe 15; Bleeder pipe 16; Pressure pipe 17; Water inlet pipe 18; Heater 20; Combination valve 21; Buffer tank 23; Control valve 24; Vaporizer 26; First water pipe joint 27; Second mounting bracket 29; Second hydrogen cylinder strap 30; Second hydrogen cylinder body 31; Second check valve 32; Second control box 33; Second discharge pipe 34; Safety valve 35; Water pump 36; Water outlet pipe 37; Second supercharging return pipe 38; Second supercharging outlet pipe 39;

[0024] Hydrogen storage device 100. Detailed implementation manners

[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as a limitation of the present utility model.

[0026] Below with reference to Figures 1 - 4 Describe the hydrogen storage device 100 according to the embodiments of the present utility model.

[0027] As Figures 1 - 4 shown, the hydrogen storage device 100 according to the embodiments of the present utility model includes: two hydrogen cylinder assemblies, a vaporizer 26 and a heater 20. The two hydrogen cylinder assemblies are adapted to be respectively arranged on the opposite outer sides of the vehicle frame and are both connected to the frame. At least one of the two hydrogen cylinder assemblies has a filling port, and the two hydrogen cylinder assemblies are communicated with each other. The vaporizer 26 is communicated with both hydrogen cylinder assemblies and is used for vaporizing the fuel discharged from the hydrogen cylinder assemblies. The heater 20 is communicated with the vaporizer 26 and is used for heating the heat exchange medium in the vaporizer 26.

[0028] Among them, the two hydrogen cylinder assemblies include a first hydrogen cylinder assembly 1 and a second hydrogen cylinder assembly 2, and the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 are respectively arranged on the opposite outer sides of the vehicle frame. As some embodiments of the present application, part of the structures of the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 can occupy the space below the frame. Such a setting can make full use of the outer side and the lower side space of the frame, which is beneficial to shortening the overall vehicle length, reducing the turning radius, and facilitating the arrangement of other components in the middle position between the front end and the carriage, and can reduce the arrangement difficulty of other components.

[0029] At least one of the two hydrogen cylinder assemblies has a filling port. As some embodiments of the present application, the first hydrogen cylinder assembly 1 has a filling port. As some embodiments of the present application, the second hydrogen cylinder assembly 2 has a filling port. As some embodiments of the present application, both the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 have filling ports, and the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 are communicatively connected. By supplying fuel to one of the hydrogen cylinder assemblies, fuel can be supplied to both the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 simultaneously. Of course, fuel can also be supplied to the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 simultaneously through the filling port of the first hydrogen cylinder assembly 1 and the filling port of the second hydrogen cylinder assembly 2 to improve the efficiency of fuel filling.

[0030] As some embodiments of the present application, as Figures 1 - 3 shown, the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 can be communicatively connected through a filling pipe 3. When replenishing fuel to one of the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2, the fuel can flow from one of the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 into the other through the filling pipe 3.

[0031] Both the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 are communicatively connected to a vaporizer 26. The fuel in the first hydrogen cylinder assembly 1 can flow into the vaporizer 26 through a first liquid outlet pipe 14, and the fuel in the second hydrogen cylinder assembly 2 can flow into the vaporizer 26 through a second liquid outlet pipe 4. The vaporizer 26 can vaporize the fuel to convert the liquid fuel into gaseous fuel.

[0032] As some embodiments of the present application, a first water pipe joint 27 and a control valve 24 are provided between the vaporizer 26 and the fuel cell. When the control valve 24 is opened, the coolant in the fuel cell can flow into the vaporizer 26 to exchange heat with the heat exchange medium in the vaporizer 26 to heat the heat exchange medium in the vaporizer 26. The heat exchange medium vaporizes the fuel in the vaporizer 26 through heat exchange. This can also cool down the coolant of the fuel cell.

[0033] A heater 20 is communicatively connected to the vaporizer 26. The heater 20 can be used to heat the heat exchange medium in the vaporizer 26. It should be noted that when the fuel cell is cold-started, the heat exchange medium in the vaporizer 26 can be made to enter the heater 20, and the heater 20 can heat the heat exchange medium. The heat exchange medium heated by the heater 20 can flow into the vaporizer 26 and exchange heat with the fuel in the vaporizer 26.

[0034] When the temperature of the fuel cell rises to a set value, the heat exchange medium is heated by the coolant of the fuel cell. This can meet the low-temperature start-up condition and protect the fuel cell. Moreover, the heat of the coolant of the fuel cell can be used to heat the heat exchange medium, which is beneficial to improving the energy utilization rate.

[0035] It can be understood that in this application, two hydrogen cylinder assemblies can share a set of vaporizer 26 and heater 20, which can reduce the number of components, improve the integration degree, and is beneficial to cost saving. And by setting two hydrogen cylinder assemblies, it is beneficial to increase the hydrogen storage capacity of the hydrogen storage device 100 and beneficial to increase the driving range of the vehicle.

[0036] In the above embodiment, by respectively arranging two hydrogen cylinder assemblies on the opposite sides of the vehicle frame, the space on both sides of the frame can be fully utilized, which is beneficial to shortening the overall vehicle length and beneficial to reducing the turning radius. In addition, two hydrogen cylinder assemblies share a set of vaporizer 26 and heater 20, which can reduce the number of parts, improve the integration degree, and is also beneficial to cost saving.

[0037] According to some embodiments of the present application, as Figure 2 and Figure 3 shown, the hydrogen cylinder assembly includes a mounting bracket, a hydrogen cylinder body, and a control box. The mounting brackets of the two hydrogen cylinder assemblies are adapted to be respectively connected to the two outer sides of the frame opposite to each other. The hydrogen cylinder body is used to store fuel. The two control boxes are communicated with each other, and one of the control boxes is communicated between one of the hydrogen cylinder bodies and the vaporizer 26, and the other control box is communicated between the other hydrogen cylinder body and the vaporizer 26.

[0038] Specifically, the first hydrogen cylinder assembly 1 includes a first mounting bracket 6, a first hydrogen cylinder body 8, and a first control box 11. The second hydrogen cylinder assembly 2 includes a second mounting bracket 29, a second hydrogen cylinder body 31, and a second control box 33. The first control box 11 is communicated between the first hydrogen cylinder body 8 and the vaporizer 26, and the second control box 33 is communicated between the second hydrogen cylinder body 31 and the vaporizer 26.

[0039] Wherein, the first mounting bracket 6 and the second mounting bracket 29 are respectively used for fixedly connecting to the two outer sides of the frame opposite to each other, so that the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 are stably and reliably fixed to the frame.

[0040] As some embodiments of the present application, the first mounting bracket 6 and the second mounting bracket 29 can extend downward from the outer side of the frame and occupy the space below the frame. Specifically, the first mounting bracket 6 and the second mounting bracket 29 can first extend vertically from top to bottom and then extend in an arc shape, and the extending path of the arc part matches the outer surface of the corresponding hydrogen cylinder body. As some embodiments of the present application, the vertical extending parts of the first mounting bracket 6 and the second mounting bracket 29 can each have a plurality of first connection holes, and the connecting pieces can respectively pass through the frame and the corresponding first connection holes to realize the connection between the first mounting bracket 6, the second mounting bracket 29 and the frame.

[0041] In some embodiments of the present application, each hydrogen cylinder assembly may be configured with two mounting brackets, and the two brackets are respectively supported at both ends of the hydrogen cylinder body to more effectively support the hydrogen cylinder body.

[0042] In some embodiments of the present application, the hydrogen cylinder body and the corresponding control box may be integrated and then jointly tied to the corresponding mounting bracket to improve the integration of the hydrogen storage device 100, make the structure of the hydrogen storage device 100 compact, and is conducive to reducing the probability of interference between the hydrogen storage device 100 and other components.

[0043] In some embodiments of the present application, the control box may be connected to one end of the corresponding hydrogen cylinder body, the hydrogen cylinder body and the corresponding control box may be arranged side by side on the side of the crossbeam, and the bottom ends of the hydrogen cylinder body and the control box may be lower than the crossbeam.

[0044] In some embodiments of the present application, the hydrogen cylinder body and the control box may be fixedly connected by, but not limited to, welding connection and riveting connection.

[0045] The first control box 11 and the second control box 33 may be connected through a filling pipe 3, so that when refueling one of the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2, the fuel can flow from one of the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 to the other through the filling pipe 3. Moreover, the first control box 11 is located between the first hydrogen cylinder body 8 and the vaporizer 26, the second control box 33 is located between the second hydrogen cylinder body 31 and the vaporizer 26, and the fuel in the first control box 11 and the fuel in the second control box 33 can flow into the vaporizer 26.

[0046] It can be understood that the fuel described in the present application is hydrogen.

[0047] In the above embodiments, by providing the first mounting bracket 6 and the second mounting bracket 29, the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 can be stably and reliably fixed to the outside of the crossbeam. By connecting the first control box 11 and the second control box 33, when refueling one of the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2, the fuel can flow from one of the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 to the other through the filling pipe 3, and the two hydrogen cylinder assemblies can be refueled through only one filling port, improving the refueling efficiency and reducing the refueling difficulty.

[0048] According to some embodiments of the present application, as Figure 2 and Figure 3 shown, the hydrogen cylinder body is connected to the corresponding control box and jointly tied to the corresponding mounting bracket.

[0049] Among them, the hydrogen storage device 100 has a first hydrogen cylinder strap 7 and a second hydrogen cylinder strap 30. The first hydrogen cylinder body 8 and the first control box 11 are tied to the first mounting bracket 6 through the first hydrogen cylinder strap 7, and the second hydrogen cylinder body 31 and the second control box 33 are tied to the second mounting bracket 29 through the second hydrogen cylinder strap 30.

[0050] As some embodiments of the present application, the first hydrogen cylinder body 8 and the first control box 11 can be integrated and then tied to the first mounting bracket 6 together, and the second hydrogen cylinder body 31 and the second control box 33 can be integrated and then tied to the second mounting bracket 29 together. Such a setting can improve the integration degree of the hydrogen storage device 100, make the structure of the hydrogen storage device 100 compact, and is beneficial to reducing the probability of interference between the hydrogen storage device 100 and other components.

[0051] According to some embodiments of the present application, as Figure 1 shown, the hydrogen storage device 100 further includes: at least one filling pipe 3, and the filling pipe 3 is connected between two control boxes.

[0052] The hydrogen storage device 100 includes at least one filling pipe 3. That is to say, the number of filling pipes 3 can be, but is not limited to, 1, 2, 3, etc. As a specific embodiment of the present application, the number of filling pipes 3 is 2. At least one filling pipe 3 is connected between the first control box 11 and the second control box 33 so that fuel can flow between the first control box 11 and the second control box 33. When refueling one of the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2, the fuel can flow from one of the first hydrogen cylinder assembly 1 and the second hydrogen cylinder assembly 2 into the other through at least one filling pipe 3. Such a setting can refuel two hydrogen cylinder assemblies simultaneously by only refueling one of the hydrogen cylinder assemblies, which is convenient for refueling the hydrogen storage device 100.

[0053] According to some embodiments of the present application, as Figures 2 - 4 shown, the hydrogen storage device 100 further includes: a first liquid outlet pipe 14, a second liquid outlet pipe 4, a first pressurized gas outlet pipe 13, a first pressurized gas return pipe 15, a second pressurized gas outlet pipe 39, and a second pressurized gas return pipe 38. The two control boxes are respectively connected to the fuel inlet of the vaporizer 26 through the first liquid outlet pipe 14 and the second liquid outlet pipe 4. Among the two control boxes, one control box forms a first pressurized circuit with the vaporizer 26 and one hydrogen cylinder body through the first pressurized gas outlet pipe 13 and the first pressurized gas return pipe 15, and the other control box forms a second pressurized circuit with the vaporizer 26 and the other hydrogen cylinder body through the second pressurized gas outlet pipe 39 and the second pressurized gas return pipe 38.

[0054] Among them, the fuel can flow into the fuel inlet of the vaporizer 26 through the first liquid outlet pipe 14 and the second liquid outlet pipe 4. Specifically, the fuel in the first hydrogen cylinder body 8 can flow into the vaporizer 26 through the first control box 11 and the first liquid outlet pipe 14 in sequence, and the fuel in the second hydrogen cylinder body 31 can flow into the vaporizer 26 through the second control box 33 and the second liquid outlet pipe 4 in sequence. So that the fuel in the first hydrogen cylinder body 8 and the fuel in the second hydrogen cylinder body 31 can smoothly flow into the vaporizer 26.

[0055] When pressurization is required, the cryogenic gas fuel in the first hydrogen cylinder body 8 flows into the first pressurized outlet gas pipe 13 through the first control box 11, flows through the vaporizer 26 from the first pressurized outlet gas pipe 13. The cryogenic gas fuel exchanges heat with the heat exchange medium in the vaporizer 26 and then the temperature rises. The gas fuel with the increased temperature then returns to the first hydrogen cylinder body 8 through the first pressurized return gas pipe 15 and the first control box 11.

[0056] The cryogenic gas fuel in the second hydrogen cylinder body 31 flows into the second pressurized outlet gas pipe 39 through the second control box 33, flows through the vaporizer 26 from the second pressurized outlet gas pipe 39. The cryogenic gas fuel exchanges heat with the heat exchange medium in the vaporizer 26 and then the temperature rises. The gas fuel with the increased temperature then returns to the second hydrogen cylinder body 31 through the second pressurized return gas pipe 38 and the second control box 33 to complete the pressurization operation. Such a setting can reliably perform the pressurization operation, which is beneficial to improving the use reliability of the hydrogen storage device 100.

[0057] According to some embodiments of the present application, as Figure 2 shown, the hydrogen storage device 100 further includes: a buffer tank 23, the buffer tank 23 is connected to the vaporizer 26, and the buffer tank 23 is used to store the fuel vaporized by the vaporizer 26 and send the buffered and pressure-stabilized fuel into the fuel cell.

[0058] Among them, the fuel vaporized by the vaporizer 26 can flow into the buffer tank 23 and be stored in the buffer tank 23, and the buffer tank 23 can send the buffered and pressure-stabilized fuel into the fuel cell. Specifically, the cryogenic liquid fuel in the first hydrogen cylinder assembly 1 flows into the vaporizer 26 through the first liquid outlet pipe 14, and the cryogenic liquid fuel in the second hydrogen cylinder assembly 2 flows into the vaporizer 26 through the second liquid outlet pipe 4. The cryogenic liquid fuel exchanges heat with the heat exchange medium in the vaporizer 26, and the heated fuel flows into the buffer tank 23 for storage, and the buffer tank 23 can send the buffered and pressure-stabilized fuel into the fuel cell.

[0059] The fuel in the buffer tank 23 can flow through the pressure pipe 17 to the first control box 11 and / or the second control box 33, and the first control box 11 and / or the second control box 33 can detect the pressure of the gas fuel in the buffer tank 23 to real-time monitor the pressure in the buffer tank 23, which can avoid excessive pressure in the buffer tank 23 and is beneficial to protecting the hydrogen storage device 100.

[0060] In the above embodiments, the buffer tank 23 can store the fuel vaporized by the vaporizer 26 to timely provide gaseous fuel for the fuel cell. Moreover, the first control box 11 and / or the second control box 33 can monitor the gas pressure in the buffer tank 23 to improve the safety of using the hydrogen storage device 100.

[0061] According to some embodiments of the present application, the hydrogen storage device 100 further includes: a mounting bracket, which is adapted to be connected to the girder. The vaporizer 26, the heater 20, and the buffer tank 23 are all arranged on one side of a hydrogen cylinder body facing the girder through the mounting bracket, and in the height direction of the hydrogen storage device 100, the orthographic projection of the vaporizer 26 and / or the heater 20 and / or the buffer tank 23 has an overlapping area with the orthographic projection of the corresponding hydrogen cylinder body.

[0062] Wherein, the mounting bracket can have a plurality of second connection holes, and the connecting pieces can respectively pass through the girder and the second connection holes to realize the connection between the mounting bracket and the girder. Such a setting can reduce the difficulty of assembling and connecting the mounting bracket and the girder.

[0063] As some embodiments of the present application, the vaporizer 26, the heater 20, and the buffer tank 23 are arranged on one side of the first hydrogen cylinder body 8 facing the girder through the mounting bracket, or the vaporizer 26, the heater 20, and the buffer tank 23 are arranged on one side of the second hydrogen cylinder body 31 facing the girder through the mounting bracket. Such a setting can arrange the vaporizer 26, the heater 20, and the buffer tank 23 on one side, which is beneficial to reducing the assembly difficulty of the hydrogen storage device 100 and is also beneficial to reducing the maintenance difficulty of the hydrogen storage device 100.

[0064] In the height direction of the hydrogen storage device 100, the orthographic projection of the vaporizer 26 and / or the heater 20 and / or the buffer tank 23 has an overlapping area with the orthographic projection of the corresponding hydrogen cylinder body. Specifically, a plane is set, and this plane is perpendicular to the height direction of the hydrogen storage device 100, that is, the normal line of this plane is parallel to the height direction of the hydrogen storage device 100. The orthographic projection of the vaporizer 26 and / or the heater 20 and / or the buffer tank 23 on this plane has an overlapping area with the orthographic projection of the corresponding hydrogen cylinder body on this plane. As some embodiments of the present application, the orthographic projection of the vaporizer 26 and the buffer tank 23 on this plane has an overlapping area with the orthographic projection of the corresponding hydrogen cylinder body on this plane. As some embodiments of the present application, the orthographic projections of the vaporizer 26, the buffer tank 23, and the heater 20 on this plane have an overlapping area with the orthographic projection of the corresponding hydrogen cylinder body on this plane.

[0065] In some embodiments of the present application, taking the side of the hydrogen cylinder body facing the beam as a plumb surface, the plumb surface can cut the vaporizer 26 and / or the heater 20 and / or the buffer tank 23. For example, taking the side of the hydrogen cylinder body facing the beam as a plumb surface, the plumb surface can cut the vaporizer 26 and the buffer tank 23; or, taking the side of the hydrogen cylinder body facing the beam as a plumb surface, the plumb surface can cut the vaporizer 26, the heater 20 and the buffer tank 23.

[0066] In the above embodiments, by making the orthographic projection of the vaporizer 26 and / or the heater 20 and / or the buffer tank 23 have an overlapping area with the orthographic projection of the corresponding hydrogen cylinder body, at least part of the structure of the vaporizer 26 and / or the heater 20 and / or the buffer tank 23 can extend into the bottom of the hydrogen cylinder body. Moreover, the vaporizer 26 and / or the heater 20 and / or the buffer tank 23 can also be arranged by utilizing the remaining space under the beam, making the structure of the hydrogen storage device 100 more compact, improving the space utilization rate, and optimizing the vehicle layout.

[0067] According to some embodiments of the present application, as Figure 2 shown, the hydrogen storage device 100 further includes a pressure pipe 17. The buffer tank 23 is connected to the control box through the pressure pipe 17. The control box is used to detect and display the pressure in the buffer tank 23. And / or, the hydrogen storage device 100 further includes a combination valve 21, a replacement pipe 12, and a discharge pipe. The buffer tank 23 is connected to the combination valve 21. The combination valve 21 is adapted to be connected to the fuel cell and connected to the replacement pipe 12. The replacement pipe 12 is connected to the discharge pipe. And / or, the hydrogen storage device 100 further includes a relief pipe 16, a safety valve 35, a check valve, and a discharge pipe. The buffer tank 23 is connected to the relief pipe 16. The safety valve 35 is provided on the relief pipe 16. The safety valve 35 is connected to the discharge pipe through the check valve.

[0068] In some embodiments of the present application, the fuel in the buffer tank 23 can flow through the pressure pipe 17 to the first control box 11 and / or the second control box 33. The first control box 11 and / or the second control box 33 can detect the pressure of the gaseous fuel in the buffer tank 23 to monitor the pressure in the buffer tank 23 in real time, which can avoid excessive pressure in the buffer tank 23 and is beneficial to protecting the hydrogen storage device 100.

[0069] The buffer tank 23 is connected to the fuel cell through the combination valve 21 so that the fuel stored in the buffer tank 23 can enter the fuel cell for combustion.

[0070] In some embodiments of the present application, the buffer tank 23 is connected to the combined valve 21, and the combined valve 21 is in communication with the fuel cell. The fuel in the buffer tank 23 can flow into the fuel cell through the combined valve 21 to supply fuel to the fuel cell. Moreover, the combined valve 21 is in communication with the replacement pipe 12, and the replacement pipe 12 is in communication with the discharge pipe. As some embodiments of the present application, the discharge pipe may include a first discharge pipe 9 and a second discharge pipe 34, and the replacement pipe 12 is in communication with at least one of the first discharge pipe 9 and the second discharge pipe 34. It should be noted that when fuel (hydrogen) is supplied for the first time, purging and replacement are required to protect the fuel cell. At this time, the gas in the hydrogen storage device 100 can be discharged from the first discharge pipe 9 and / or the second discharge pipe 34 via the replacement pipe 12.

[0071] As some embodiments of the present application, the hydrogen storage device 100 further includes a first check valve 10 and a second check valve 32. The first check valve 10 may be provided upstream of the first discharge pipe 9, and the second check valve 32 may be provided upstream of the second discharge pipe 34.

[0072] The buffer tank 23 is in communication with the relief pipe 16, and a safety valve 35 is provided on the relief pipe 16. The safety valve 35 is in communication with the discharge pipe through a check valve. As some embodiments of the present application, the safety valve 35 is in communication with the first discharge pipe 9 through the first check valve 10. As some embodiments of the present application, the safety valve 35 is in communication with the second discharge pipe 34 through the second check valve 32. As some embodiments of the present application, the safety valve 35 is in communication with the first discharge pipe 9 through the first check valve 10, and the safety valve 35 is in communication with the second discharge pipe 34 through the second check valve 32.

[0073] When the pressure in the buffer tank 23 exceeds the set pressure, the pressure airflow can be discharged from the hydrogen storage device 100 through the safety valve 35, the relief pipe 16, the check valve, and the discharge pipe in sequence. Such a setting can prevent the pressure in the buffer tank 23 from being too high and can timely discharge the gas in the buffer tank 23.

[0074] As some embodiments of the present application, the combined valve 21 may include a pressure sensor, a solenoid valve, a pressure regulating valve, and a temperature sensor, and the pressure sensor, the solenoid valve, the pressure regulating valve, and the temperature sensor may be integrated into the combined valve 21.

[0075] According to some embodiments of the present application, such as Figure 2As shown, the hydrogen storage device 100 further includes a first heat exchange medium circuit and a control valve 24. The first heat exchange medium circuit is connected to the vaporizer 26. The coolant of the fuel cell can enter the vaporizer 26 through the first heat exchange medium circuit to heat the heat exchange medium in the vaporizer 26. The control valve 24 is provided in the first heat exchange medium circuit. The hydrogen storage device 100 further includes a second heat exchange medium circuit, a water inlet pipe 18, a water pump 36, and a water outlet pipe 37. The second heat exchange medium circuit is connected to the vaporizer 26. The water inlet pipe 18, the water pump 36, the water outlet pipe 37, and the heater 20 are all provided in the second heat exchange medium circuit. The heater 20 is used to heat the heat exchange medium in the second heat exchange medium circuit.

[0076] Among them, the hydrogen storage device 100 further includes a first heat exchange medium circuit and a control valve 24. The first heat exchange medium circuit is connected to the vaporizer 26. The coolant of the fuel cell can enter the vaporizer 26 through the first heat exchange medium circuit to heat the heat exchange medium in the vaporizer 26. The control valve 24 is provided in the first heat exchange medium circuit. The control valve 24 is used to control whether the first heat exchange medium circuit works. As some embodiments of the present application, a first water pipe joint 27 is provided on the first heat exchange medium circuit. Setting the first water pipe joint 27 is beneficial to reducing the difficulty of pipeline connection. The hydrogen storage device 100 further includes a second heat exchange medium circuit, a water inlet pipe 18, a water pump 36, and a water outlet pipe 37. The second heat exchange medium circuit is connected to the vaporizer 26. The water inlet pipe 18, the water pump 36, the water outlet pipe 37, and the heater 20 are all provided in the second heat exchange medium circuit. The heat exchange medium can circulate between the water inlet pipe 18, the water pump 36, the heater 20, the water outlet pipe 37, and the vaporizer 26.

[0077] As some embodiments of the present application, the control valve 24 can be a waterway solenoid valve.

[0078] When the fuel cell is cold-started, the control valve 24 is closed, and the heater 20 and the water pump 36 are turned on (that is, the second heat exchange medium circuit works, and the first heat exchange medium circuit stops working). The heat exchange medium circulates in the second heat exchange medium circuit. The water pump 36 can pump the heat exchange medium in the vaporizer 26 into the heater 20. Specifically, the heat exchange medium in the vaporizer 26 enters the heater 20 through the water inlet pipe 18 and the water pump 36. The heat exchange medium is heated in the heater 20, and the heated heat exchange medium flows into the vaporizer 26 through the water outlet pipe 37 to exchange heat with the fuel in the vaporizer 26.

[0079] When the temperature of the fuel cell rises to the set value, the water pump 36 is closed, and the control valve 24 is opened (that is, the first heat exchange medium circuit works, and the second heat exchange medium circuit stops working). At this time, the fuel cell heats the heat exchange medium (in other words, at this time, the heat exchange medium cools the fuel cell). This can meet the low-temperature start-up condition and play a protective role for the fuel cell. Moreover, the heat of the fuel cell can be used to heat the heat exchange medium, which is beneficial to improving the energy utilization rate.

[0080] A vehicle according to an embodiment of the present application includes the hydrogen storage device 100 of the above embodiment. The two hydrogen cylinder assemblies of the hydrogen storage device 100 are respectively arranged on opposite sides of the vehicle frame and are both connected to the frame. By arranging the two hydrogen cylinder assemblies on opposite sides of the vehicle frame respectively, the space on both sides of the frame can be fully utilized, which is beneficial to shortening the overall vehicle length and reducing the turning radius. In addition, the two hydrogen cylinder assemblies share a set of vaporizer 26 and heater 20, which can reduce the number of components, improve the integration degree, and is also beneficial to cost savings.

[0081] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0082] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.

[0083] In the description of the present utility model, the meaning of "a plurality" is two or more.

[0084] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0085] In the description of the present utility model, the first feature being "above", "above the top" and "on the top" of the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0086] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0087] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hydrogen storage device, characterized in that, Including: Two hydrogen cylinder assemblies, the two hydrogen cylinder assemblies are respectively arranged on opposite sides of the vehicle frame and are both connected to the frame. At least one of the two hydrogen cylinder assemblies has a filling port, and the two hydrogen cylinder assemblies are communicated with each other; A vaporizer (26) and a heater (20), the vaporizer (26) is communicated with both of the two hydrogen cylinder assemblies and is used for vaporizing the fuel discharged from the hydrogen cylinder assemblies, and the heater (20) is communicated with the vaporizer (26) and is used for heating the heat exchange medium in the vaporizer (26).

2. The hydrogen storage device according to claim 1, characterized in that, The hydrogen cylinder assembly includes a mounting bracket, a hydrogen cylinder body and a control box. The mounting brackets of the two hydrogen cylinder assemblies are adapted to be respectively connected to opposite sides of the frame. The hydrogen cylinder body is used for storing the fuel. The two control boxes are communicated with each other, and one of the control boxes is communicated between one of the hydrogen cylinder bodies and the vaporizer (26), and the other control box is communicated between the other hydrogen cylinder body and the vaporizer (26).

3. The hydrogen storage device according to claim 2, characterized in that, The hydrogen cylinder body is connected to the corresponding control box and they are jointly tied to the corresponding mounting bracket.

4. The hydrogen storage device according to claim 2, characterized in that, The hydrogen storage device further includes: at least one filling pipe (3), and the filling pipe (3) is communicated between the two control boxes.

5. The hydrogen storage device according to claim 2, wherein The hydrogen storage device further includes: a first liquid outlet pipe (14), a second liquid outlet pipe (4), a first pressurized gas outlet pipe (13), a first pressurized gas return pipe (15), a second pressurized gas outlet pipe (39), a second pressurized gas return pipe (38); The two control boxes are respectively connected to the fuel inlet of the vaporizer (26) through the first liquid outlet pipe (14) and the second liquid outlet pipe (4); Among the two control boxes, one of the control boxes forms a first pressurized circuit with the vaporizer (26) and one of the hydrogen cylinder bodies through the first pressurized gas outlet pipe (13) and the first pressurized gas return pipe (15), and the other control box forms a second pressurized circuit with the vaporizer (26) and the other hydrogen cylinder body through the second pressurized gas outlet pipe (39) and the second pressurized gas return pipe (38).

6. The hydrogen storage device according to claim 2, wherein The hydrogen storage device further includes: a buffer tank (23), the buffer tank (23) is communicated with the vaporizer (26), and the buffer tank (23) is used for storing the fuel vaporized by the vaporizer (26) and sending the fuel after buffering and stabilizing pressure into the fuel cell.

7. The hydrogen storage device according to claim 6, characterized in that, The hydrogen storage device further includes: an assembly bracket, the assembly bracket is adapted to be connected to the frame. The vaporizer (26), the heater (20) and the buffer tank (23) are all arranged on the side of one of the hydrogen cylinder bodies facing the frame through the assembly bracket, and along the height direction of the hydrogen storage device (100), the orthographic projection of the vaporizer (26) and / or the heater (20) and / or the buffer tank (23) has an overlapping area with the orthographic projection of the corresponding hydrogen cylinder body.

8. The hydrogen storage device according to claim 6, wherein The hydrogen storage device further includes: a pressure pipe (17), the buffer tank (23) is communicated with the control box through the pressure pipe (17), and the control box is used to detect and display the pressure in the buffer tank (23); And / or, the hydrogen storage device further includes: a combined valve (21), a replacement pipe (12), and a discharge pipe. The buffer tank (23) is connected to the combined valve (21), and the combined valve (21) is adapted to be communicated with a fuel cell and is communicated with the replacement pipe (12), and the replacement pipe (12) is communicated with the discharge pipe; And / or, the hydrogen storage device further includes: a blow-off pipe (16), a safety valve (35), a check valve, and a discharge pipe. The buffer tank (23) is communicated with the blow-off pipe (16), the safety valve (35) is arranged on the blow-off pipe (16), and the safety valve (35) is communicated with the discharge pipe through the check valve.

9. The hydrogen storage device according to any one of claims 1-8, wherein The hydrogen storage device further includes a first heat exchange medium circuit and a control valve (24). The first heat exchange medium circuit is communicated with the vaporizer (26). The coolant of the fuel cell can enter the vaporizer (26) through the first heat exchange medium circuit to heat the heat exchange medium in the vaporizer (26), and the control valve (24) is arranged in the first heat exchange medium circuit; The hydrogen storage device further includes a second heat exchange medium circuit, a water inlet pipe (18), a water pump (36), and a water outlet pipe (37). The second heat exchange medium circuit is communicated with the vaporizer (26). The water inlet pipe (18), the water pump (36), the water outlet pipe (37), and the heater (20) are all arranged in the second heat exchange medium circuit, and the heater (20) is used to heat the heat exchange medium in the second heat exchange medium circuit.

10. A vehicle, characterized in that, Including the hydrogen storage device according to any one of claims 1-9, two hydrogen cylinder assemblies of the hydrogen storage device (100) are respectively arranged on opposite sides of the vehicle frame and are both connected to the frame.

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