Portable hydrogen fuel power supply
By designing a portable hydrogen fuel power supply, using a partition-separated power shell and a lightweight hydrogen storage bottle, the existing air-cooled hydrogen fuel cell system is solved, and the portability and safety are improved.
Patent Information
- Application Number
- CN202421216393.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-30
AI Technical Summary
现有的空冷型氢燃料电池系统由于体积大、不易移动，难以作为便携的移动电源使用。
A portable hydrogen fuel power supply is designed, which includes a power housing and a hydrogen storage bottle placed in a backpack. The inner cavity of the power housing is separated into a reaction chamber and a control chamber by a partition, which separates the hydrogen fuel stack from the electronic control unit, improves safety, and uses a hydrogen storage bottle made of aluminum alloy material and a carbon fiber winding layer to reduce weight and improve portability.
The portable hydrogen fuel power supply is small in size and portable, and the safety of the equipment is improved through partition partitions, while reducing the weight of the hydrogen storage bottle, greatly improving portability.
Smart Images
Figure CN222637316U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrogen energy batteries, in particular to a portable hydrogen fuel power source. Background Art
[0002] Hydrogen energy has become the main energy source to solve environmental pollution. Hydrogen fuel cells can convert hydrogen into electricity through the reverse reaction principle of water electrolysis. The energy utilization rate can reach more than 50%, and the only reaction product is water. It is a very good environmentally friendly battery. According to the different cooling media of hydrogen fuel cells, they are divided into air-cooled fuel cells and water-cooled fuel cells.
[0003] Water-cooled fuel cell systems have good heat dissipation and can reach tens or even hundreds of kilowatts. We have developed water-cooled fuel cell systems that are competitive in the market and can be produced on a small scale, as well as passenger cars and commercial vehicles using them as engines. Air-cooled fuel cell systems have also received increasing attention in multiple military and civilian application fields such as portable individual power supplies and mobile power stations due to their relatively simple structure, small size, and relatively easy power adjustment. However, due to market demand, development costs, or structural design constraints, existing air-cooled fuel cell systems are mostly scattered components for experiments, and generally use large, non-movable stainless steel cylinders to supply hydrogen to the fuel cell stack, which is not convenient for use as a portable mobile power source. Summary of the invention
[0004] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a portable hydrogen fuel power supply, which is small in size and easy to carry, and the inner cavity of the power supply housing is provided with a partition to separate the hydrogen fuel cell stack from the electronic control unit, thereby improving the safety of the equipment.
[0005] The utility model is realized through the following technical solutions:
[0006] A portable hydrogen fuel power source comprises a power source housing and a hydrogen storage bottle placed in a backpack, wherein the inner cavity of the power source housing is divided into a reaction chamber and a control chamber from bottom to top by a partition; a hydrogen fuel cell stack is arranged in the reaction chamber, and a vent is arranged on the side of the reaction chamber; an air inlet and an exhaust port are arranged on the hydrogen fuel cell stack; a control unit and a battery for providing electric energy to the control unit are arranged in the control chamber; the hydrogen storage bottle is fixed in a support arranged on the side of the power source housing, and the air outlet of the hydrogen storage bottle is connected to the air inlet of the hydrogen fuel cell stack through an air duct; the exhaust port of the hydrogen fuel cell stack is connected to the exhaust port arranged on the side wall of the reaction chamber through the air duct The air holes are connected; in the present technical solution, the power supply housing and the hydrogen storage bottle are compact and can be placed in a backpack for use, thereby improving their portability. The inner cavity of the power supply housing is divided into a reaction chamber and a control chamber from bottom to top by partitions, separating the hydrogen fuel cell stack from the electronic control unit, thereby avoiding the influence of the electrical components on the exhaust gas of the hydrogen fuel cell stack when working, thereby improving the safety of the equipment. The air vents can ensure connectivity with the outside atmosphere, facilitate the entry of fresh air into the reaction chamber, and provide oxygen for the hydrogen fuel cell stack. In order to ensure the endurance of the device, supports for fixing to the sides of the power supply housing can be provided on both sides of the power supply housing.
[0007] Preferably, an air intake solenoid valve is provided on the air outlet pipeline of the hydrogen storage bottle, and the air intake solenoid valve is electrically connected to the control unit; in the present technical solution, the air intake solenoid valve is used to control the on-off of the air supply pipeline, thereby controlling the operation of the hydrogen fuel cell stack.
[0008] Further preferably, a hydrogen sensor is provided at the gas outlet of the hydrogen storage bottle, and the hydrogen sensor is electrically connected to the control unit; in the present technical solution, the hydrogen sensor can sense the hydrogen leakage at the gas outlet of the hydrogen storage bottle, and transmit the sensed data to the control unit, and the control unit controls the timely closing of the air inlet solenoid valve to ensure the safety of the device.
[0009] Preferably, the exhaust port of the hydrogen fuel cell stack is provided with an exhaust solenoid valve, and the exhaust solenoid valve is electrically connected to the control unit; in the present technical solution, the exhaust solenoid valve controls the on-off of the drainage pipeline to discharge excess water and hydrogen from the drainage hole.
[0010] Preferably, a storage plate is provided in the middle of the control cavity, and the storage plate divides the control cavity into a connected main control cavity and an external cavity; the control unit and the battery are fixed in the main control cavity; a power output external socket is provided on the top of the external cavity; in this technical solution, the storage plate can facilitate the arrangement of electrical components.
[0011] Preferably, the hydrogen storage bottle includes an aluminum alloy inner liner and a carbon fiber winding layer covering the aluminum alloy inner liner; in the present technical solution, the hydrogen storage bottle is replaced with an aluminum alloy material from traditional stainless steel, and a lightweight carbon fiber winding layer is provided on the aluminum alloy inner liner, which not only ensures the strength of the hydrogen storage bottle, but also reduces the weight of the hydrogen storage bottle, thereby greatly improving portability.
[0012] Preferably, an exhaust fan is provided on the hydrogen fuel cell stack, and the exhaust fan is electrically connected to the control unit; in this technical solution, the exhaust fan can quickly introduce fresh air from the outside into the hydrogen fuel cell stack, thereby cooling the hydrogen fuel cell stack and replenishing oxygen.
[0013] Preferably, the support is in a frame structure, and a positioning plate adapted to the hydrogen storage bottle is provided inside; in the present technical solution, the support is in a frame structure to reduce the overall weight of the device and improve portability; a positioning hole adapted to the hydrogen storage bottle is provided in the middle of the positioning plate.
[0014] Preferably, the support is arranged outside the vent, and an air filter is provided on the support; in this technical solution, the air filter can prevent impurities in the air from clogging the air flow channel of the hydrogen fuel cell stack and affecting the conversion efficiency of the hydrogen fuel cell stack.
[0015] Compared with the prior art, the beneficial effects of the utility model are: 1. The power supply adopts a hydrogen fuel cell as the power supply unit, and the only metabolic product is water, and no harmful gas is generated, which has good environmental protection performance; 2. The power supply can be placed in a backpack for use, which improves its portability, and the inner cavity of the power supply shell is divided into a reaction chamber and a control chamber from bottom to top by a partition, separating the hydrogen fuel cell stack from the electronic control unit, avoiding the influence of electrical components on the exhaust gas of the hydrogen fuel cell stack when working, and improving the safety of the equipment; 3. The hydrogen storage bottle of the power supply is replaced by an aluminum alloy material from the traditional stainless steel material, and a lightweight carbon fiber winding layer is provided on the aluminum alloy inner liner, which not only ensures the strength of the hydrogen storage bottle, but also reduces the weight of the hydrogen storage bottle, greatly improving the portability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the internal structure of a portable hydrogen fuel power source described in Example 1;
[0017] Figure 2 It is a schematic diagram of the structure of the housing described in the first embodiment;
[0018] Figure 3 This is a schematic diagram of the structure of the hydrogen storage bottle described in Example 1;
[0019] Figure 4 This is a schematic diagram of the structure of the hydrogen fuel cell stack described in Example 1;
[0020] In the figure: 1. Shell; 1-1. Reaction chamber; 1-11. Vent; 1-12. Exhaust hole; 1-2. Control chamber; 1-21. Storage plate; 2. Partition; 3. Support; 31. Positioning plate; 32. Air filter; 4. Hydrogen storage bottle; 4-1. Aluminum alloy liner; 4-2. Carbon fiber winding layer; 41. Bottle head valve; 42. Hydrogen sensor; 5. Hydrogen fuel cell stack; 5-1. Collector plate; 5-2. Electrode sheet; 5-3. Air inlet; 5-4. Exhaust port; 5-5. Exhaust fan; 6. Exhaust solenoid valve; 7. Battery; 8. Transformer; 9. Inverter; 10. Thick film non-inductive resistor; 11. Control unit; 12. Power meter; 13. Intake solenoid valve; 14. AC / DC conversion switch; 15. Power output switch; 16. Start switch; 17. Output external socket; 18. Auxiliary support. DETAILED DESCRIPTION
[0021] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1
[0022] like Figures 1 to 4As shown, a portable hydrogen fuel power source includes a power source housing 1 and a hydrogen storage bottle 4 placed in a backpack, the inner cavity of the power source housing 1 is divided into a reaction chamber 1-1 and a control chamber 1-2 from bottom to top by a partition 2; a hydrogen fuel cell stack 5 is arranged in the reaction chamber 1-1, and a vent 1-11 is arranged on the side of the reaction chamber; the hydrogen fuel cell stack 5 is an air-cooled fuel cell, which, as an existing technology, includes a plurality of single cells stacked together, and the plurality of single cells are clamped and fixed by current collecting plates 5-1 located on both sides, and the plurality of single cells are ... An air inlet 5-3 is provided on the current collecting plate on one side, and an exhaust port 5-4 is provided on the current collecting plate on the other side; the control chamber 1-2 is provided with a battery 7, a transformer 8, an inverter 9, a control unit 11 and a power meter 12 required in the fuel cell system, and the battery 7 provides power for the control unit 11; a support 3 is fixed to the side of the power supply housing 1 by welding, and a positioning plate 31 adapted to the hydrogen storage bottle 4 is provided in the support 3, and a positioning hole is provided on the positioning plate 31; the hydrogen storage bottle 4 is fixed in the support 3, The gas outlet of the hydrogen storage bottle 4 is connected to the gas inlet 5-3 of the hydrogen fuel cell stack 5 through the gas guide tube to provide hydrogen for the hydrogen fuel cell stack 5; the exhaust port 5-4 of the hydrogen fuel cell stack 5 is connected to the exhaust hole 1-12 provided on the side wall of the reaction chamber through the gas guide tube; the positive and negative electrode sheets of the hydrogen fuel cell stack 5 are electrically connected to the control unit through wires; in this device, the power supply housing 1 and the hydrogen storage bottle 4 are small in size and can be placed in a backpack for use, thereby improving its portability, and the inner cavity of the power supply housing 1 is divided into The reaction chamber 1-1 and the control chamber 1-2 are separated to separate the hydrogen fuel cell stack 5 from the electronic control unit, thereby avoiding the influence of the electrical components on the exhaust gas of the hydrogen fuel cell stack when working, and improving the safety of the equipment; the vent 1-11 can ensure the connectivity between the reaction chamber 1-1 and the outside atmosphere, and facilitate the entry of fresh air into the reaction chamber 1-1 to provide oxygen for the hydrogen fuel cell stack; it should be noted that in order to ensure the endurance of the device, auxiliary supports 18 for fixing to the side of the power supply casing can be provided on both sides of the power supply casing.
[0023] Preferably, the hydrogen storage bottle 4 includes an aluminum alloy liner and a carbon fiber winding layer 4-2 covering the aluminum alloy liner 4-1. Compared with the traditional stainless steel hydrogen storage bottle, the present hydrogen storage bottle not only ensures the structural strength, but also reduces its own weight, reduces the carrying load, and greatly improves the portability; an air intake solenoid valve 13 is provided on the air outlet pipeline of the hydrogen storage bottle 4, and the air intake solenoid valve 13 is electrically connected to the control unit 11, which is used to control the on-off of the air supply pipeline, and then control the operation of the hydrogen fuel cell stack; further, a bottle head valve is provided at the air outlet of the hydrogen storage bottle 4 41 and a hydrogen sensor 42, the hydrogen sensor 42 is electrically connected to the control unit 11, and is used to sense the hydrogen leakage at the outlet of the hydrogen storage bottle, and transmit the sensed data to the control unit, which controls the timely closing of the air inlet solenoid valve to ensure the safety of the device; in order to reasonably utilize the space, reduce the occupied volume of the shell, and facilitate the arrangement of electrical components, a storage plate 1-21 is provided in the middle of the control chamber 1-2, and the storage plate 1-21 divides the control chamber 1-2 into a connected main control chamber and an external chamber; the power meter 12 is fixed on the storage plate 1-2 1 is located in the external cavity; a thick film non-inductive resistor 10 is fixed on the lower surface of the storage plate 1-21; the control unit 11 is vertically fixed in the communication channel of the control cavity 1-2, and the battery and inverter are fixed in the main control cavity; the top of the external cavity is provided with a power output external socket 17, a start switch 16, a power output switch 15 and an AC / DC conversion switch 14 to facilitate direct operation after opening the backpack; the exhaust port of the hydrogen fuel cell stack 5 is provided with an exhaust solenoid valve 6, and the exhaust solenoid valve 6 is electrically connected to the control unit 11 for controlling the hydrogen fuel cell stack 5. The drainage pipeline of the stack 5 is opened and closed to discharge excess water and hydrogen from the drainage hole 1-12; the hydrogen fuel cell stack 5 is provided with an exhaust fan 5-5, and the exhaust fan 5-5 is electrically connected to the control unit 11. The exhaust fan 5-5 can quickly introduce fresh air from the outside into the hydrogen fuel cell stack 5, thereby cooling the hydrogen fuel cell stack and replenishing oxygen; the support is a frame structure, which is arranged on the outside of the vent, and an air filter 32 is provided on the support, and the air filter 32 can prevent impurities in the air from clogging the air flow channel of the hydrogen fuel cell stack and affecting the conversion efficiency of the hydrogen fuel cell stack.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the technical solution of the embodiments of the utility model.
Claims
1. A portable hydrogen fuel power source, characterized in that: It comprises a power supply housing and a hydrogen storage bottle, wherein the inner cavity of the power supply housing is divided into a reaction chamber and a control chamber from bottom to top by a partition; a hydrogen fuel cell stack is arranged in the reaction chamber, and a vent is arranged on the side of the reaction chamber; an air inlet and an exhaust port are arranged on the hydrogen fuel cell stack; a control unit and a battery for providing electric energy to the control unit are arranged in the control chamber; the hydrogen storage bottle is fixed in a support arranged on the side of the power supply housing, and the air outlet of the hydrogen storage bottle is connected with the air inlet of the hydrogen fuel cell stack through an air duct; the exhaust port of the hydrogen fuel cell stack is connected with the exhaust hole arranged on the side wall of the reaction chamber through an air duct.
2. The portable hydrogen fuel power source according to claim 1, characterized in that: An air intake solenoid valve is provided on the air outlet pipeline of the hydrogen storage bottle, and the air intake solenoid valve is electrically connected to the control unit.
3. The portable hydrogen fuel power source according to claim 2, characterized in that: A hydrogen sensor is provided at the gas outlet of the hydrogen storage bottle, and the hydrogen sensor is electrically connected to the control unit.
4. The portable hydrogen fuel power source according to claim 1, characterized in that: An exhaust solenoid valve is provided at the exhaust port of the hydrogen fuel cell stack, and the exhaust solenoid valve is electrically connected to the control unit.
5. The portable hydrogen fuel power source according to claim 1, characterized in that: A storage plate is provided in the middle of the control cavity, and the storage plate divides the control cavity into a main control cavity and an external connection cavity which are connected; the control unit and the battery are fixed in the main control cavity; and a power output external connection socket is provided on the top of the external connection cavity.
6. The portable hydrogen fuel power source according to claim 1, characterized in that: The hydrogen storage bottle comprises an aluminum alloy inner liner and a carbon fiber winding layer covering the aluminum alloy inner liner.
7. The portable hydrogen fuel power source according to claim 1, characterized in that: The hydrogen fuel cell stack is provided with an exhaust fan, and the exhaust fan is electrically connected to the control unit.
8. The portable hydrogen fuel power source according to claim 1, characterized in that: The support is in the form of a frame structure, and a positioning plate adapted to fit the hydrogen storage bottle is provided inside.
9. The portable hydrogen fuel power source according to claim 8, characterized in that: The support is arranged outside the vent, and an air filter is arranged on the support.