Ultra-thin wearable hydrogen energy fuel cell system

Abstract

The utility model relates to the field of hydrogen fuel cells, in particular to an ultra-thin wearable hydrogen energy fuel cell system which comprises an electric unit, a control unit, a shell, at least two hydrogen fuel cabins and hydrogen fuel rods matched with the hydrogen fuel cabins. The hydrogen fuel cabin is provided with a fuel cabin cover, the fuel cabin cover is connected with the hydrogen fuel cabin or integrated with the hydrogen fuel rod, the hydrogen fuel rod is connected with the electric unit and the control unit through the hydrogen fuel cabin and the fuel cabin cover, and the electric unit comprises a storage battery, a hydrogen fuel cell, a hydrogen fuel cell controller and a DC / DC converter. And the storage battery is matched with the hydrogen fuel cell to supply power. The portable wearable power supply is light and compact, is simple and convenient to operate, can stably and safely provide power output for a long time, and is suitable for a large number of important application scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydrogen fuel cells, in particular to an ultra-thin wearable hydrogen energy fuel cell system. BACKGROUND

[0002] In related technologies, portable power supplies and wearable mobile power supplies are mostly provided with lithium batteries. However, the energy density of lithium ion batteries is low, and such power supplies are mostly heavy and bulky, increasing the burden on users. Especially in scenarios where charging is inconvenient, such as scientific exploration, exploration, rescue, camping, hiking, and individual combat, users need to carry a large number of lithium ion batteries to ensure sufficient power supply. The low energy density of lithium ion batteries means that the weight and volume of the backup lithium ion batteries carried by users are large, causing additional burden. In addition, lithium ion batteries have poor environmental adaptability, which causes the performance of such power supplies to deteriorate significantly in more extreme environments.

[0003] The development of hydrogen power technology provides a possibility to break through the problems caused by the inherent disadvantages of the above-mentioned lithium ion batteries. However, in the existing public technologies, the hydrogen storage unit of the portable hydrogen power supply still mostly uses high-pressure gas cylinder technology (CN118588972A). The energy density of the high-pressure gas cylinder is low and the high-pressure gas cylinder is heavy and bulky, which cannot fundamentally solve the above-mentioned problems. In order to improve the energy density of the power supply system, some public technologies use solid-state hydrogen storage material hydrolysis hydrogen production technology (CN213483787U). However, such systems need to introduce liquid phases and their corresponding system components, resulting in a complex system and increasing the difficulty of control. In addition, such systems increase the flow of liquid phases in addition to gases, which will affect and limit the user's actions when used for wearable applications. The above-mentioned lithium ion batteries and hydrogen power supplies all have defects. UTILITY MODEL CONTENT

[0004] In order to overcome the deficiencies of lithium ion batteries and hydrogen power supplies in related technologies, the present application provides a portable and wearable power supply that is light and compact, easy to operate, and can stably and safely provide long-time power output, suitable for a large number of important application scenarios.

[0005] The ultra-thin wearable hydrogen energy fuel cell system provided by the present application adopts the following technical solutions:

[0006] An ultra-thin wearable hydrogen energy fuel cell system, comprising an electric unit and a control unit, a shell, at least two hydrogen fuel tanks and hydrogen fuel rods matched with the hydrogen fuel tanks; the hydrogen fuel tanks are provided with tank covers, which are connected with the hydrogen fuel tanks or integrated with the hydrogen fuel rods, the hydrogen fuel rods are connected with the electric unit and the control unit through the hydrogen fuel tanks and the tank covers, the electric unit comprises a battery, a hydrogen fuel cell, a hydrogen fuel cell controller and a DC / DC converter, the battery and the hydrogen fuel cell cooperate to supply power and meet the load demand, the hydrogen fuel cell generates electricity by using hydrogen gas emitted by the hydrogen fuel rods, which is the main power output source of the fuel cell system, the battery electrically heats the hydrogen fuel rods to release hydrogen, and adjusts the electric heating power to adjust the hydrogen release rate of the hydrogen fuel rods according to the instruction of the control unit, which can stably and safely provide power output for a long time.

[0007] Further, the hydrogen fuel rods are provided with pressure sensors and temperature sensors.

[0008] Further, the hydrogen energy fuel cell system is provided with an electric heating plate, the power line of which is led out from the hydrogen fuel tank shell and directly connected to the battery; when the tank cover is integrated with the hydrogen fuel rod, the sensor signal transmission line is built in the tank cover and led to one side of the tank cover to form a first integrated interface matched with a second integrated interface led out from the control unit to realize signal transmission; when the tank cover is connected with the hydrogen fuel tank, the hydrogen fuel rod is provided with a sensor connection contact at the top, which is connected with the pressure sensor and the temperature sensor inside the hydrogen fuel rod, the tank cover is built in a sensor signal transmission line, one end of which is led out from one side of the tank cover and directly connected to the electric unit and the control unit, and the other end is connected with the sensor connection contact arranged on the surface of the tank cover, the sensor connection contact on the surface of the tank cover is matched with the sensor connection contact at the top of the hydrogen fuel rod, and the signal transmission is realized after the tank cover is closed.

[0009] Further, the hydrogen energy fuel cell system is provided with an electric heating rod which is built in the hydrogen fuel rod; when the fuel tank cover is integrated with the hydrogen fuel rod, the sensor signal transmission line and the electric heating rod power line are built in the fuel tank cover and form a first integrated interface on one side of the fuel tank cover which matches a second integrated interface led out by the electric unit and the control unit to realize signal transmission; when the fuel tank cover is connected with the hydrogen fuel tank, the top of the hydrogen fuel rod is provided with a first temperature sensor contact point, a first pressure sensor contact point and a first power contact point, the first temperature sensor contact point and the first pressure sensor contact point are connected with the pressure sensor and the temperature sensor inside the hydrogen fuel rod respectively, and the first power contact point is connected with the electric heating rod inside the hydrogen fuel rod; the sensor signal transmission line and the electric heating rod power line are built in the fuel tank cover, one end of the signal transmission line and the power line is directly connected with the electric unit and the control unit after being led out from one side of the fuel tank cover, and the other end is connected with a second temperature sensor contact point, a second pressure sensor contact point and a second power contact point arranged on the surface of the fuel tank cover; the sensor contact points and the second power contact point on the surface of the fuel tank cover match the sensor contact points and the first power contact point on the top of the hydrogen fuel rod respectively, so that the signal transmission and the power connection are realized after the tank cover is closed.

[0010] Further, the hydrogen fuel rod is provided with an outlet at the bottom which matches a gas path interface arranged at the bottom of the hydrogen fuel tank; the gas path interface at the bottom of the hydrogen fuel tank is connected with a hydrogen gas path, and a one-way valve and a hydrogen flow meter are arranged on the gas path before the hydrogen enters the hydrogen fuel cell.

[0011] Further, the hydrogen fuel rod is provided with a bursting disc at the bottom, and the hydrogen fuel tank is provided with an emergency exhaust hole at the bottom.

[0012] Further, the electric unit and the control unit are arranged in the shell in the middle of the hydrogen energy fuel cell system; the control unit includes a monitoring and recording module, a calculation and judgment module and an instruction issuing and executing module, which monitor and record various parameters of the system operation, issue and execute corresponding instructions after calculation and judgment, so as to manage power and control and adjust the hydrogen release rate of the hydrogen fuel rod.

[0013] Further, the shell of the hydrogen energy fuel cell system is divided into multiple areas, and is respectively provided with a hydrogen fuel cell, a hydrogen fuel cell controller, a DC / DC converter, a storage battery and a control unit; each area shell includes a shell body and a rear cover which are movably connected and can be opened from the corresponding shell body; the shell body of the area where the hydrogen fuel cell is arranged is provided with a ventilation hole on at least one side, a heat dissipation fan and a ventilation and heat dissipation hole at the bottom, and an electric output port at the top; the top of the shell body is further provided with a power switch and a remaining power display screen.

[0014] Further, in the control unit, the monitoring and recording module receives various operating parameters from the hydrogen fuel rod, the battery and the hydrogen fuel cell, inputs the parameters into the calculation and judgment module for calculation and judgment to form instructions, and then the instruction sending and executing module sends the instructions to the electric unit for corresponding power and hydrogen release rate adjustment.

[0015] Further, the ultra-thin wearable hydrogen energy fuel cell system further comprises a connecting assembly, which connects the hydrogen fuel cabin with the electric unit and the control unit, and reserves a certain activity space, so that the hydrogen fuel cabin can rotate around the axis in the connecting assembly by a certain angle, so that the fuel cell system can be more fitted to the human body as needed; the connecting assembly and the hydrogen fuel cabin form a relatively closed space, which can protect the connecting line between the shell and the fuel cabin cover and the hydrogen fuel cabin.

[0016] In summary, the present application has at least one of the following beneficial technical effects:

[0017] 1. The fuel cabin cover is connected with the hydrogen fuel cabin or is integrated with the hydrogen fuel rod, and the hydrogen fuel rod is connected with the electric unit and the control unit through the hydrogen fuel cabin and the fuel cabin cover, which is simple and convenient to operate.

[0018] 2. The battery and the hydrogen fuel cell cooperate to supply power and match the load demand, the hydrogen fuel cell generates electricity using the hydrogen gas released by the hydrogen fuel rod, which is the main power output source of the fuel cell system, the battery electrically heats the hydrogen fuel rod to release hydrogen, and adjusts the electric heating power to adjust the hydrogen release rate of the hydrogen fuel rod according to the instructions of the control unit, which can stably and safely provide power output for a long time.

[0019] 3. The hydrogen fuel rod is provided with an air outlet at the bottom, which matches the gas path interface provided at the bottom of the hydrogen fuel cabin, realizes the connection of the gas path, and enables the hydrogen gas released by the hydrogen fuel rod to pass to the fuel cell for power generation.

[0020] 4. The hydrogen fuel rod is also provided with a bursting disc at the bottom, and the hydrogen fuel cabin is provided with an emergency exhaust hole, which can timely release pressure and exhaust gas in the case of overpressure to ensure safety.

[0021] 5. The one-way valve allows the hydrogen gas to flow from the hydrogen fuel rod to the hydrogen fuel cell in one direction, avoiding backflow of the gas to pollute the atmosphere and materials in the hydrogen fuel rod, and the hydrogen flow meter monitors and records the hydrogen flow and sends signals to the control unit for calculation and judgment.

[0022] 6. The rear cover of each area shell can be opened from the corresponding shell body, which is convenient for necessary maintenance and replacement of each component.

[0023] 7. The hydrogen fuel cell is located in the area of the shell body at least one side of the vent hole, so that air can enter the hydrogen fuel cell cathode; the bottom of the shell is provided with a cooling fan and a ventilation cooling hole, which is used for cooling the hydrogen fuel cell and accelerating the air flow, so that the air can be smoothly brought into the hydrogen fuel cell.

[0024] 8. The top of the shell is provided with an electric output port, and various specifications can be set as needed, which is used for connecting external load.

[0025] 9. The hydrogen fuel rod is filled with high hydrogen density solid hydrogen fuel, and the energy density is greatly improved compared with the existing technology of mobile hydrogen energy power supply using high pressure gas cylinder. Therefore, the hydrogen energy fuel cell has the advantages of light weight, compact structure and high capacity.

[0026] 10. In the design of the present application, pyrolysis is used to promote hydrogen release of solid hydrogen fuel, and the moving medium in the system is only gas, and the rest is solid fixed part. Compared with the existing technology of using solid hydrogen fuel hydrolysis to release hydrogen (there is water flow in the system in addition to gas), it is more suitable for wearable application and does not limit the action and movement of the wearer.

[0027] 11. The integrated design is carried out for each line interface (cabin cover integrated interface or integrated sensor contact and power contact on the top of the hydrogen fuel rod), and the installation mechanism of the hydrogen fuel rod is designed (quick plug, press buckle, cabin bottom spring, etc.) to simplify the disassembly and assembly of the hydrogen fuel rod, so that the user can quickly replace the hydrogen fuel rod, and some special designs support the user to replace the hydrogen fuel rod with one hand; The overall structure of the system is compact and simple, easy and fast to operate, and high in safety. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the overall structure schematic diagram of the embodiment of the present application.

[0029] Figure 2 It is the ventilation and cooling hole schematic diagram of the embodiment of the present application.

[0030] Figure 3 It is the hydrogen fuel tank and hydrogen fuel rod schematic diagram of the embodiment of the present application.

[0031] Figure 4 It is the structure schematic diagram of embodiment 1.

[0032] Figure 5 It is the structure schematic diagram of embodiment 2.

[0033] Figure 6 It is the structure schematic diagram of embodiment 3.

[0034] Figure 7 It is the structure schematic diagram of embodiment 4.

[0035] Figure 8is a schematic diagram of an integrated interface structure corresponding to example 1.

[0036] Figure 9 is a schematic diagram of an integrated interface structure corresponding to example 2.

[0037] Figure 10 is a schematic diagram of a hydrogen fuel rod contact structure corresponding to example 3.

[0038] Figure 11 is a schematic diagram of a fuel tank cover contact structure corresponding to example 3.

[0039] Figure 12 is a schematic diagram of a hydrogen fuel rod contact structure corresponding to example 4.

[0040] Figure 13 is a schematic diagram of a fuel tank cover contact structure corresponding to example 4.

[0041] Figure 14 is a schematic diagram of a connection assembly structure corresponding to the present application.

[0042] Reference signs: 1, electric unit and control unit; 2, hydrogen fuel tank; 3, hydrogen fuel rod; 4, fuel tank cover; 5, power switch; 6, electric quantity display screen; 7, electric output port; 8, connection assembly; 9, ventilation hole; 10, ventilation and heat dissipation hole; 11, pressure sensor; 12, electric heating plate; 15, temperature sensor; 21, hydrogen fuel cell; 22, control unit; 23, storage battery; 24, hydrogen fuel cell controller; 25, DC / DC converter; 31, plastic heat insulation shell; 32, metal heat conduction shell; 33, hydrogen gas path; 34, hydrogen gas flow meter; 35, bursting disc; 36, one-way valve; 37, heat dissipation fan; 38, emergency exhaust hole; 41, electric heating rod; 42, spring; 43, press button; 44, first power on point; 45, first integrated interface; 46, first temperature sensor on contact; 47, first pressure sensor on contact; 49, screw; 48, second power on point; 50, second temperature sensor on contact; 51, second pressure sensor on contact. DETAILED DESCRIPTION

[0043] The following will be described in detail below with reference to the accompanying drawings. Figures 1-14 The present application will be further described in detail.

[0044] Example 1:

[0045] The present application discloses an ultra-thin wearable hydrogen energy fuel cell system. Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4The application discloses an ultra-thin wearable hydrogen energy fuel cell system, which comprises an electric unit and a control unit 1, a shell, two hydrogen fuel tanks 2 arranged in left-right symmetry and hydrogen fuel rods 3 matched with the hydrogen fuel tanks 2; the hydrogen fuel tank 2 is provided with a fuel tank cover 4, the hydrogen fuel rod 3 is designed in an integrated manner with the fuel tank cover 4, and the hydrogen fuel rod 3 is connected with the electric unit and the control unit 1 through the hydrogen fuel tank 2 and the fuel tank cover 4.

[0046] The hydrogen fuel rod 3 is provided with a pressure sensor 11 and a temperature sensor 15, and the hydrogen energy fuel cell system is further provided with an electric heating plate 12.

[0047] The fuel tank cover 4 is integrated with the hydrogen fuel rod 3, the sensor signal transmission line is built in the fuel tank cover 4, the signal transmission line is led to one side of the fuel tank cover 4, a first integrated interface 45 is formed, the first integrated interface 45 is matched with a second integrated interface led out by the control unit 22, the transmission of the operation parameters of the hydrogen fuel rod 3 to the control unit 22 is realized, the shell of the hydrogen fuel tank 2 is a plastic heat-insulating shell, preferably made of polytetrafluoroethylene, which is beneficial to the light weight of the whole power supply and can play a good heat preservation role and improve the heating efficiency. The electric heating plate 12 is arranged on one side of the electric unit and the control unit 1 in the middle of the plastic heat-insulating shell 31, the electric heating line is connected to the storage battery 23 through the shell, the metal heat-conducting shell 32 is arranged in close contact with the inner wall of the plastic heat-insulating shell 31 in a circumferential direction, the heat generated by the electric heating plate 12 is dispersed and conducted to the hydrogen fuel rod 3, the hydrogen fuel rod 3 is provided with a gas outlet at the bottom, the gas outlet is in communication with the bottom interface of the hydrogen fuel tank 2, so that the hydrogen gas flows to the hydrogen fuel cell 21 smoothly in the operation process, the one-way valve 36 and the hydrogen flow meter 34 are arranged on the gas path in front of the hydrogen fuel cell 21 in the middle shell, the one-way valve 36 allows the hydrogen gas to flow from the hydrogen fuel rod 3 to the hydrogen fuel cell 21 in one direction, so as to avoid the backflow of the gas to pollute the atmosphere and materials in the hydrogen fuel rod 3, the hydrogen flow meter 34 monitors and records the hydrogen flow and sends the signal to the control unit 22 for calculation and judgment, the rupture disc 35 is further arranged at the bottom of the hydrogen fuel rod 3, and the emergency exhaust hole 38 is arranged at the bottom of the hydrogen fuel tank 2; in order to facilitate the insertion and extraction of the hydrogen fuel rod 3, the fuel tank cover 4 is slightly wider than the hydrogen fuel tank 2, after installation, the rupture disc 35 of the hydrogen fuel rod 3 corresponds to the emergency exhaust hole 38 of the hydrogen fuel tank 2, so that the gas can be discharged smoothly and quickly under the condition of overpressure.

[0048] With reference to Figure 8 In the embodiment 1, one temperature sensor contact and one pressure sensor contact are arranged in the integrated interface.

[0049] The electric unit and control unit 1 are arranged in the housing in the middle of the hydrogen energy fuel cell system, the electric unit includes the storage battery 23, the hydrogen fuel cell 21, the hydrogen fuel cell controller 24, the DC / DC converter 25, the storage battery 23 cooperates with the hydrogen fuel cell 21 to supply power; the control unit 22 includes a monitoring and recording module, a calculation and judgment module and an instruction sending and executing module, the system operation parameters are monitored and recorded, the corresponding instructions are sent and executed after the calculation and judgment, so that the power is managed and the hydrogen fuel rod 3 release hydrogen rate is controlled and adjusted.

[0050] The housing of the hydrogen energy fuel cell system is divided into multiple areas, and is respectively provided with the hydrogen fuel cell 21, the hydrogen fuel cell controller 24, the DC / DC converter 25, the storage battery 23 and the control unit 22, each area housing includes a shell body and a rear cover connected movably, and the rear cover can be opened from the corresponding shell body; the shell body of the area where the hydrogen fuel cell 21 is located is provided with a ventilation hole 9 on at least one side, and is provided with a heat dissipation fan 37 and a ventilation and heat dissipation hole 10 at the bottom, for dissipating heat for the hydrogen fuel cell 21 and accelerating air flow, and is provided with an electric output port 7 at the top, which can be of multiple specifications as needed, for connecting external loads, and is further provided with a power switch 5 and a remaining power display screen 6 at the top; the hydrogen fuel cell 21 is preferably an ultra-thin open cathode hydrogen fuel cell 21, and the area where the hydrogen fuel cell 21 is located is provided with a ventilation hole 9 on at least one side, so that air can enter the cathode of the hydrogen fuel cell 21; the data transmission line and the power transmission line between the components in the housing are completed inside the housing, the data transmission line is led out from the side of the housing and integrated into a second integrated interface, matched with the first integrated interface 45, and the power transmission line is led out from the side of the housing and connected to the electric heating plate 12.

[0051] In the control unit 22, the monitoring and recording module receives various operation parameters from the hydrogen fuel rod 3, the storage battery 23 and the hydrogen fuel cell 21, inputs the parameters into the calculation and judgment module to form instructions, and then the instruction sending and executing module sends the instructions to the electric unit to adjust the corresponding power and release hydrogen rate.

[0052] The ultra-thin wearable hydrogen energy fuel cell system further includes a connecting assembly 8, which connects the hydrogen fuel tank 2 and the electric unit and control unit 1, and leaves a certain space for movement, so that the hydrogen fuel tank 2 can rotate around the axis in the connecting assembly 8 by a certain angle, so that the fuel cell system can be more fitted to the human body as needed; the connecting assembly 8 and the hydrogen fuel tank 2 form a relatively closed space, which can protect the connecting line between the housing and the fuel tank cover 4 and the hydrogen fuel tank 2. The connecting assembly 8 includes a middle housing part and an end assembly part, and the middle housing part and the two side end assembly parts are integrally formed or fixedly connected. The middle housing part is provided with a U-shaped groove facing the hydrogen fuel tank 2, and the connecting assembly 8 is connected to the hydrogen fuel tank 2 through the U-shaped groove. Figure 1 、 Figure 2 andFigure 14 The hydrogen fuel tank 2 is provided with screw holes near the two end portions of the side wall of the intermediate electric unit and control unit 1, and the side wall of the hydrogen fuel tank 2 near the intermediate electric unit and control unit 1 is thicker than the side wall of the hydrogen fuel tank 2 away from the intermediate electric unit and control unit 1, and the thickness is arranged to match the fuel tank cover 4; the screws 49 pass through the screw holes arranged on the end assembly part of the connecting assembly 8 and the screw holes of the end portion of the wall of the hydrogen fuel tank 2 in sequence, realizing the assembly of the hydrogen fuel tank 2 and the end assembly part of the connecting assembly 8, and at the same time, the opening side of the U-shaped groove of the intermediate shell part is slightly wider than the hydrogen fuel tank 2, reserving a certain movement space for the hydrogen fuel tank 2; in this way, the hydrogen fuel tank 2 can rotate at a certain angle with the screws 49 at the two ends as the axis, and at the same time, the connecting wire is in a relatively closed space, playing a certain protection role.

[0053] The fuel tank cover 4 is integrated with the hydrogen fuel rod 3, and the hydrogen fuel rod 3 realizes the connection with the electric unit and control unit 1 through the hydrogen fuel tank 2 and the fuel tank cover 4, which is simple and convenient to operate.

[0054] The storage battery 23 cooperates with the hydrogen fuel cell 21 to supply power and match the load demand, the hydrogen fuel cell 21 generates electricity by using the hydrogen gas emitted by the hydrogen fuel rod 3, and is the main power output source of the fuel cell system, the storage battery 23 electrically heats the hydrogen fuel rod 3 to release hydrogen, and adjusts the hydrogen release rate of the hydrogen fuel rod 3 according to the instruction of the control unit 22 to adjust the electric heating power, which can stably and safely provide power output for a long time.

[0055] Embodiment 2:

[0056] The difference between this embodiment and embodiment 1 is that, referring to Figure 5 and Figure 9 , on the basis of embodiment 1, the heating mode of the hydrogen fuel rod 3 is changed from external electric heating plate 12 heating to internal electric heating rod 41 heating, which can make the heating efficiency higher and the internal temperature distribution of the hydrogen fuel rod 3 more uniform and regular. In addition, since the internal heating mode is adopted, the metal heat-conducting shell 32 does not need to be additionally arranged on the inner wall of the tank body.

[0057] The power supply line of the electric heating rod 41 and the sensor signal transmission line are built in the fuel tank cover 4, and are led to the integrated interface 45 on one side of the fuel tank cover 4, referring to Figure 9 , embodiment 2 is provided with one power supply connection point, one temperature sensor connection point and one pressure sensor connection point corresponding to the integrated interface 45.

[0058] Embodiment 3:

[0059] The difference between this embodiment and embodiment 2 is that, referring to Figure 6 , Figure 10 and Figure 11On the basis of Embodiment 2, the fuel tank cover 4 is connected with the hydrogen fuel tank 2, the fuel tank cover 4 is movably connected with the hydrogen fuel tank 2, the fuel tank cover 4 is used to open the hydrogen fuel tank 2, the hydrogen fuel stick 3 is provided with a first temperature sensor contact point 46, a first pressure sensor contact point 47 and a first power supply contact point 44 at the top, the first temperature sensor contact point 46 and the first pressure sensor contact point 47 are connected with the pressure sensor 11 and the temperature sensor 15 in the hydrogen fuel stick 3 respectively, the first power supply contact point 44 is connected with the electric heating stick 41 in the hydrogen fuel stick 3, the sensor signal transmission line and the electric heating stick power supply line are built-in in the fuel tank cover 4, one end of the signal transmission line and the power supply line is directly connected with the electric unit and the control unit 1 through the fuel tank cover 4, the other end is connected with a second temperature sensor contact point 50, a second pressure sensor contact point 51 and a second power supply contact point 48 arranged on the surface of the fuel tank cover 4, the second temperature sensor contact point 50, the second pressure sensor contact point 51 and the second power supply contact point 48 on the surface of the fuel tank cover 4 are matched with the first temperature sensor contact point 46, the first pressure sensor contact point 47 and the first power supply contact point 44 at the top of the hydrogen fuel stick 3 respectively, the signal transmission and the power supply are realized after the tank cover is closed.

[0060] Referring to Figure 10 and Figure 11 , the hydrogen fuel stick 3 is provided with the first power supply contact point 44, the first temperature sensor contact point 46 and the first pressure sensor contact point 47 in Embodiment 3, the fuel tank cover 4 is provided with the second power supply contact point 48, the second temperature sensor contact point 50 and the second pressure sensor contact point 51.

[0061] The opening and closing of the fuel tank cover 4 adopts the design of pressing the elastic cover, and the spring 42 is additionally arranged at the bottom of the fuel tank; when the hydrogen fuel stick 3 needs to be replaced, the fuel tank cover 4 is automatically opened by pressing the elastic buckle 43, at the same time, the hydrogen fuel stick 3 is disconnected with the gas path of the subsequent unit under the rebounding force of the bottom spring 42, and is partially popped out of the hydrogen fuel tank 2, which is convenient for the user to take it out; when the new hydrogen fuel stick 3 is installed, it only needs to be inserted into the hydrogen fuel tank 2 and buckled tightly with the fuel tank cover 4, then the gas path, the signal transmission line and the power supply can be automatically connected; the design further facilitates the installation and disassembly of the hydrogen fuel stick 3, and supports the single-handed disassembly and assembly.

[0062] Embodiment 4:

[0063] The difference between this embodiment and Embodiment 3 is that: on the basis of Embodiment 3, the pressure sensor 11 and the temperature sensor 15 in the hydrogen fuel stick 3 are symmetrically arranged along the central axis of the hydrogen fuel stick 3, referring to Figure 7, two pressure sensors 11 and two temperature sensors 15 are symmetrically arranged in each hydrogen fuel rod 3, so that the user does not need to distinguish the front and back surfaces when installing, and only needs to insert the hydrogen fuel rod 3 with the bottom facing down, which can further shorten the hydrogen fuel rod 3 replacement time in some emergency situations.

[0064] With reference to Figure 12 and Figure 13 , the hydrogen fuel rod 3 of Example 4 is provided with one first power-on point 44, two first temperature sensor-on contacts 46 and two first pressure sensor-on contacts 47, and the fuel tank cover 4 is provided with one second power-on point 48, two second temperature sensor-on contacts 50 and two second pressure sensor-on contacts 51.

[0065] The present application provides a portable wearable power supply which is light and compact, easy to operate, and can stably and safely provide power output for a long time, and is suitable for a large number of important application scenarios.

[0066] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made in structure, shape, principle, etc. according to the present application should be covered within the protection scope of the present application.

Claims

1. An ultra-thin wearable hydrogen energy fuel cell system, characterized by: The hydrogen energy fuel cell system comprises an electric unit and a control unit (1), a shell, at least two hydrogen fuel tanks (2), and hydrogen fuel rods (3) matched with the hydrogen fuel tanks (2); the hydrogen fuel tanks (2) are provided with tank covers (4) which are connected with the hydrogen fuel tanks (2) or integrated with the hydrogen fuel rods (3); the hydrogen fuel rods (3) are connected with the electric unit and the control unit (1) through the hydrogen fuel tanks (2) and the tank covers (4); the electric unit comprises a storage battery (23), a hydrogen fuel cell (21), a hydrogen fuel cell controller (24), and a DC / DC converter (25); the storage battery (23) and the hydrogen fuel cell (21) cooperate to supply power and meet the load demand; the hydrogen fuel cell (21) generates power by using hydrogen gas emitted by the hydrogen fuel rods (3) and is the main power output source of the fuel cell system; the storage battery (23) electrically heats the hydrogen fuel rods (3) to release hydrogen and adjusts the hydrogen release rate of the hydrogen fuel rods (3) by adjusting the electric heating power according to the instruction of the control unit (22), thereby stably and safely providing power output for a long time.

2. The ultra-thin wearable hydrogen fuel cell system of claim 1, wherein: The hydrogen fuel rods (3) are provided with pressure sensors (11) and temperature sensors (15) therein.

3. The ultra-thin wearable hydrogen fuel cell system of claim 2, wherein: The hydrogen energy fuel cell system is provided with an electric heating plate (12) whose power supply line is led out from the shell of the hydrogen fuel tank (2) and directly connected to the storage battery (23); when the tank cover (4) is integrated with the hydrogen fuel rods (3), the sensor signal transmission line is built in the tank cover (4) and led to one side of the tank cover (4) to form a first integrated interface (45) which is matched with a second integrated interface led out from the control unit (22) to realize signal transmission; when the tank cover (4) is connected with the hydrogen fuel tank (2), the hydrogen fuel rods (3) are provided at the top with sensor connection contacts which are connected with the pressure sensors (11) and the temperature sensors (15) in the hydrogen fuel rods (3); the tank cover (4) is built with a sensor signal transmission line which is led out from one side of the tank cover (4) to be directly connected to the electric unit and the control unit (1) and connected at the other end to the sensor connection contacts arranged on the surface of the tank cover (4); the sensor connection contacts on the surface of the tank cover (4) are matched with the sensor connection contacts at the top of the hydrogen fuel rods (3) to realize signal transmission after the tank cover is closed.

4. The ultra-thin wearable hydrogen fuel cell system of claim 2, wherein: The hydrogen energy fuel cell system is provided with an electric heating rod (41) which is built in the hydrogen fuel rod (3); when the fuel cabin cover (4) is integrated with the hydrogen fuel rod (3), the sensor signal transmission line and the electric heating rod power line are built in the fuel cabin cover (4), and a first integrated interface (45) is formed on one side of the fuel cabin cover (4) to match a second integrated interface led out of the electric unit and the control unit (1) to realize signal transmission; when the fuel cabin cover (4) is connected with the hydrogen fuel cabin (2), the hydrogen fuel rod (3) is provided with a first temperature sensor contact point (46), a first pressure sensor contact point (47) and a first power contact point (44) on the top, the first temperature sensor contact point (46) and the first pressure sensor contact point (47) are connected with the pressure sensor (11) and the temperature sensor (15) in the hydrogen fuel rod (3) respectively, and the first power contact point (44) is connected with the electric heating rod (41) in the hydrogen fuel rod (3); the sensor signal transmission line and the electric heating rod power line are built in the fuel cabin cover (4), one end of the signal transmission line and the power line is directly connected with the electric unit and the control unit (1) through the side of the fuel cabin cover (4), and the other end is connected with a second temperature sensor contact point (50), a second pressure sensor contact point (51) and a second power contact point (48) arranged on the surface of the fuel cabin cover (4); the sensor contact points and the second power contact point (48) on the surface of the fuel cabin cover (4) match the sensor contact points and the first power contact point (44) on the top of the hydrogen fuel rod (3) respectively, and the signal transmission and the power supply are realized after the cabin cover is closed.

5. The ultra-thin wearable hydrogen fuel cell system of claim 3 or 4, wherein: The bottom of the hydrogen fuel rod (3) is provided with an exhaust port which matches the gas path interface arranged on the bottom of the hydrogen fuel cabin (2); the gas path interface on the bottom of the hydrogen fuel cabin (2) is connected with a hydrogen gas path (33), and hydrogen gas is introduced into the hydrogen fuel cell (21); a one-way valve (36) and a hydrogen gas flow meter (34) are arranged on the gas path before the hydrogen gas enters the hydrogen fuel cell (21).

6. The ultra-thin wearable hydrogen fuel cell system of claim 5, wherein: The bottom of the hydrogen fuel rod (3) is also provided with a bursting disc (35), and the bottom of the hydrogen fuel cabin (2) is provided with an emergency exhaust hole (38).

7. The ultra-thin wearable hydrogen fuel cell system of claim 6, wherein: The electric unit and the control unit (1) are arranged in the shell in the middle of the hydrogen energy fuel cell system; the control unit (22) includes a monitoring and recording module, a calculation and judgment module and an instruction issuing and executing module, monitors and records various parameters of system operation, issues and executes corresponding instructions after calculation and judgment, so as to manage power and control and adjust the hydrogen release rate of the hydrogen fuel rod (3).

8. The ultra-thin wearable hydrogen fuel cell system of claim 7, wherein: The housing of the hydrogen energy fuel cell system is divided into multiple areas, each of which is provided with a hydrogen fuel cell (21), a hydrogen fuel cell controller (24), a DC / DC converter (25), a storage battery (23) and a control unit (22), and each area housing includes a movably connected housing body and a rear cover which can be opened from the corresponding housing body; the housing body of the area where the hydrogen fuel cell (21) is located is provided with a ventilation hole (9) on at least one side, the bottom of the housing is provided with a cooling fan (37) and a ventilation cooling hole (10), the top of the housing is provided with an electric output port (7), and the top of the housing is further provided with a power switch (5) and a remaining power display screen (6).

9. The ultra-thin wearable hydrogen fuel cell system of claim 8, wherein: In the control unit (22), the monitoring and recording module receives various operating parameters from the hydrogen fuel rod (3), the storage battery (23) and the hydrogen fuel cell (21), inputs the parameters into the calculation and judgment module to form instructions, and then the instruction sending and executing module sends the instructions to the electric unit to adjust the corresponding power and hydrogen release rate.

10. The ultra-thin wearable hydrogen fuel cell system of claim 9, wherein: The ultra-thin wearable hydrogen energy fuel cell system further comprises a connecting assembly (8) which connects the hydrogen fuel tank (2) with the electric unit and the control unit (1), and reserves a certain activity space, so that the hydrogen fuel tank (2) can rotate around the central axis of the connecting assembly (8) by a certain angle, so that the fuel cell system can be more fitted to the human body according to the needs; the connecting assembly (8) and the hydrogen fuel tank (2) form a relatively closed space, which can protect the connecting line between the housing and the fuel tank cover (4) and the hydrogen fuel tank (2).

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