CN216942697U - Hydrogen fuel cell energy supply system - Google Patents
Hydrogen fuel cell energy supply system Download PDFInfo
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- CN216942697U CN216942697U CN202220136646.2U CN202220136646U CN216942697U CN 216942697 U CN216942697 U CN 216942697U CN 202220136646 U CN202220136646 U CN 202220136646U CN 216942697 U CN216942697 U CN 216942697U
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- fuel cell
- hydrogen fuel
- hydrogen
- energy storage
- supply system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The utility model relates to a hydrogen fuel cell energy supply system which comprises a hydrogen fuel cell, a fuel cell controller, an energy storage cell, a boosting DC/DC and a reducing DC/DC, wherein the output end of the energy storage cell is respectively connected with an external load and the input end of the reducing DC/DC, the output end of the reducing DC/DC is connected with the fuel cell controller, the fuel cell controller is connected with the hydrogen fuel cell, and the output end of the hydrogen fuel cell is connected with the charging end of the energy storage cell through the boosting DC/DC. The utility model has the advantages that: the hydrogen fuel cell generates electricity to charge the energy storage cell when the electric quantity of the energy storage cell is lower than a preset value, so that the energy storage cell can continuously output electric energy to supply power to a load, and the endurance mileage of the energy storage cell is prolonged; the lithium battery can be charged by replacing hydrogenation, so that long-time charging waiting time is saved; the device has two energy charging modes of hydrogenation and charging, and is flexible to use.
Description
Technical Field
The utility model relates to the field of fuel cells, in particular to a hydrogen fuel cell energy supply system.
Background
At present, electric bicycles or electric wheelchairs in the market are mainly powered by lithium batteries and other power devices. After the electric energy in the lithium battery is used up, the lithium battery can be continuously used after long-time charging, which is very inconvenient.
Disclosure of Invention
The utility model mainly solves the problems that the traditional lithium battery energy supply system cannot be used when the electric quantity is insufficient and needs to be charged for a long time, and provides the hydrogen fuel battery energy supply system which charges the energy storage battery by using the fuel battery and does not influence the normal power supply of the energy storage battery when the electric quantity of the energy storage battery is insufficient.
The technical scheme adopted by the utility model for solving the technical problem is that the energy supply system of the hydrogen fuel cell comprises the hydrogen fuel cell, a fuel cell controller, an energy storage cell, a boosting DC/DC and a reducing DC/DC, wherein the output end of the energy storage cell is respectively connected with an external load and the input end of the reducing DC/DC, the output end of the reducing DC/DC is connected with the fuel cell controller, the fuel cell controller is connected with the hydrogen fuel cell, and the output end of the hydrogen fuel cell is connected with the charging end of the energy storage cell through the boosting DC/DC.
The hydrogen fuel cell generates electricity to charge the energy storage cell when the electric quantity of the energy storage cell is lower than a preset value, so that the energy storage cell can continuously output electric energy to supply power to a load, and the endurance mileage of the energy storage cell is prolonged; the lithium battery can be charged by replacing hydrogenation, so that long-time charging waiting time is saved; the device has two energy charging modes of hydrogenation and charging, and is flexible to use.
As an optimal scheme of the above scheme, the fuel cell controller includes a voltage detection end, a temperature detection end, an air intake solenoid valve control end, an exhaust solenoid valve control end and a cooling fan control end, the voltage detection end detects the voltage of the energy storage battery and the output voltage of the hydrogen fuel cell, the temperature detection end detects the temperature of the hydrogen fuel cell, the air intake solenoid valve control end is connected with the air intake solenoid valve, the air intake solenoid valve is arranged between the air intake path and the air inlet of the hydrogen fuel cell, the exhaust solenoid valve control end is connected with the exhaust solenoid valve, the exhaust battery valve is arranged at the air outlet of the hydrogen fuel cell, the cooling fan control end is connected with the cooling fan, and the cooling fan dissipates heat for the hydrogen fuel cell and provides air required for reaction.
As a preferable scheme of the scheme, the air inlet gas circuit comprises a hydrogen cylinder, a hydrogen cylinder valve and a pressure reducing valve which are sequentially connected, the pressure reducing valve is connected with an air inlet electromagnetic valve, and a hydrogen cylinder pressure sensor is arranged between the hydrogen cylinder and the hydrogen cylinder valve.
As a preferable mode of the above mode, a hydrogen low pressure sensor is provided between the intake solenoid valve and the hydrogen fuel cell.
As a preferable mode of the above scheme, the output end of the energy storage battery is connected with the external load and the step-down DC/DC through a start relay.
As a preferable scheme of the above scheme, the hydrogen gas hydrogen cylinder further comprises a starting control display screen, the starting control display screen is connected with the starting relay and provides a starting signal for the starting relay, and the starting control display screen displays the residual hydrogen gas container, the electric quantity of the energy storage battery and the residual endurance mileage in the hydrogen gas cylinder.
As a preferable mode of the above mode, a diode is provided between the boost DC/DC and the energy storage battery.
The utility model has the advantages that: the hydrogen fuel cell generates electricity to charge the energy storage cell when the electric quantity of the energy storage cell is lower than a preset value, so that the energy storage cell can continuously output electric energy to supply power to a load, and the endurance mileage of the energy storage cell is prolonged; the lithium battery can be charged by replacing hydrogenation, so that long-time charging waiting time is saved; the device has two energy charging modes of hydrogenation and charging, and is flexible to use.
Drawings
Fig. 1 is a block diagram showing the configuration of a hydrogen fuel cell power supply system in the embodiment.
1-hydrogen cylinder 2-hydrogen cylinder pressure sensor 3-hydrogen cylinder valve 4-relief valve 5-inlet solenoid valve 6-hydrogen low pressure sensor 7-exhaust solenoid valve 8-radiator fan 9-hydrogen fuel cell 10-boost DC/DC 11-step down DC/DC 12-fuel cell controller 13-start relay 14-start control display screen 15-energy storage battery 16-external load 17-diode.
Detailed Description
The technical solution of the present invention is further described below by way of examples with reference to the accompanying drawings.
Example (b):
the energy supply system for the hydrogen fuel cell comprises a hydrogen fuel cell 9, a fuel cell controller 12, an energy storage cell 15, a boosting DC/DC10 and a step-down DC/DC11, wherein the energy storage cell output end 15 is respectively connected with an external load 16 and a step-down DC/DC11 input end through a starting relay 13, the step-down DC/DC11 output end is connected with the fuel cell controller 12, the fuel cell controller 12 is connected with the hydrogen fuel cell 9, the hydrogen fuel cell output end is connected with a charging end of the energy storage cell 15 through a boosting DC/DC10, and a diode 17 is arranged between the boosting DC/DC10 and the energy storage cell 15.
Fuel cell controller 12 includes voltage detection end, temperature detection end, air intake solenoid valve control end, exhaust solenoid valve control end and radiator fan control end, voltage detection end detects 15 voltages of energy storage battery and hydrogen fuel cell 9 output voltage, the temperature detection end detects the temperature of hydrogen fuel cell 9, air intake solenoid valve control end links to each other with air intake solenoid valve 5, and air intake solenoid valve locates between air inlet path and the hydrogen fuel cell air inlet, exhaust solenoid valve control end links to each other with exhaust solenoid valve 7, and the hydrogen fuel cell gas outlet is located to the exhaust battery valve, radiator fan control end links to each other with radiator fan 8, and radiator fan 8 dispels the heat for hydrogen fuel cell and provides the required air of reaction.
The air inlet gas path comprises a hydrogen cylinder 1, a hydrogen cylinder valve 3 and a pressure reducing valve 4 which are connected in sequence, the pressure reducing valve 4 is connected with an air inlet electromagnetic valve 5, a hydrogen cylinder pressure sensor 2 is arranged between the hydrogen cylinder 1 and the hydrogen cylinder valve 3, and a hydrogen low pressure sensor 6 is arranged between the air inlet electromagnetic valve 5 and a hydrogen fuel cell 9.
In this embodiment, a start control display screen 14 is further provided, the start control display screen 14 is connected with the start relay 13 and provides a start signal for the start relay 13, and the start control display screen 14 displays the remaining hydrogen container, the energy storage battery capacity and the remaining endurance mileage in the hydrogen cylinder.
This embodiment hydrogen fuel cell energy supply system can be used to electronic wheelchair and electric bicycle, when being used for electronic wheelchair, press the switch on the start control display screen, 24V's energy storage battery passes through the starter relay and supplies power for step-down DC/DC and driving motor and automobile body load, after step-down DC/DC step-down becomes 12V voltage, for the power supply of fuel cell controller, can carry out the self-checking after the work of fuel cell controller, when monitoring that energy storage battery capacity is less than the calibration value, will control into, the work of exhaust solenoid valve and start radiator fan, and provide the required air of heat dissipation and reaction for hydrogen fuel cell through temperature monitoring intelligent control radiator fan rotational speed. After the air inlet electromagnetic valve and the air outlet electromagnetic valve work, the hydrogen fuel gas of the air storage tank is supplied to the hydrogen fuel cell. The hydrogen fuel cell generates electricity after receiving hydrogen supply and air supplied by the radiator fan. The electric energy generated by the hydrogen fuel cell is boosted to 24V through the boosting DC/DC to charge the energy storage battery. When the energy storage battery is charged to the calibration voltage and the hydrogen fuel in the hydrogen fuel battery is exhausted, the fuel battery controller can shut down the hydrogen fuel battery to stop supplying power to the energy storage battery. In the process, the electric wheelchair is powered by the energy storage battery all the time, and the batteries generated by the hydrogen fuel battery are all used for charging the energy storage battery.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.
Claims (7)
1. A hydrogen fuel cell energy supply system is characterized in that: the hydrogen fuel cell system comprises a hydrogen fuel cell, a fuel cell controller, an energy storage cell, a boosting DC/DC (direct current) and a reducing DC/DC (direct current/direct current), wherein the output end of the energy storage cell is respectively connected with an external load and the input end of the reducing DC/DC, the output end of the reducing DC/DC is connected with the fuel cell controller, the fuel cell controller is connected with the hydrogen fuel cell, and the output end of the hydrogen fuel cell is connected with the charging end of the energy storage cell through the boosting DC/DC.
2. A hydrogen fuel cell power supply system according to claim 1, wherein: the fuel cell controller includes voltage detection end, temperature detection end, air inlet solenoid valve control end, exhaust solenoid valve control end and radiator fan control end, voltage detection end detects energy storage battery voltage and hydrogen fuel cell output voltage, the temperature detection end detects hydrogen fuel cell's temperature, air inlet solenoid valve control end links to each other with the solenoid valve that admits air, and the solenoid valve that admits air is located between air inlet gas circuit and the hydrogen fuel cell air inlet, exhaust solenoid valve control end links to each other with exhaust solenoid valve, and the hydrogen fuel cell gas outlet is located to the exhaust battery valve, radiator fan control end links to each other with radiator fan, and radiator fan dispels the heat and provides the required air of reaction for hydrogen fuel cell.
3. A hydrogen fuel cell power supply system according to claim 2, wherein: the gas inlet circuit comprises a hydrogen cylinder, a hydrogen cylinder valve and a pressure reducing valve which are connected in sequence, the pressure reducing valve is connected with a gas inlet electromagnetic valve, and a hydrogen cylinder pressure sensor is arranged between the hydrogen cylinder and the hydrogen cylinder valve.
4. A hydrogen fuel cell power supply system according to claim 2 or 3, characterized by: a hydrogen low pressure sensor is arranged between the air inlet electromagnetic valve and the hydrogen fuel cell.
5. A hydrogen fuel cell power supply system according to claim 1, wherein: and the output end of the energy storage battery is connected with an external load and the step-down DC/DC through a starting relay.
6. A hydrogen fuel cell power supply system according to claim 5, wherein: the hydrogen gas storage device is characterized by further comprising a starting control display screen, wherein the starting control display screen is connected with the starting relay and provides a starting signal for the starting relay, and the starting control display screen displays the residual hydrogen container, the electric quantity of the energy storage battery and the residual endurance mileage in the hydrogen cylinder.
7. A hydrogen fuel cell power supply system according to claim 1, wherein: and a diode is arranged between the boosting DC/DC and the energy storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220136646.2U CN216942697U (en) | 2022-01-19 | 2022-01-19 | Hydrogen fuel cell energy supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220136646.2U CN216942697U (en) | 2022-01-19 | 2022-01-19 | Hydrogen fuel cell energy supply system |
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| Publication Number | Publication Date |
|---|---|
| CN216942697U true CN216942697U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220136646.2U Active CN216942697U (en) | 2022-01-19 | 2022-01-19 | Hydrogen fuel cell energy supply system |
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| CN (1) | CN216942697U (en) |
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2022
- 2022-01-19 CN CN202220136646.2U patent/CN216942697U/en active Active
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