WO2020045994A1 - Structure d'alimentation en gaz d'un bloc d'alimentation de pile à combustible - Google Patents

Structure d'alimentation en gaz d'un bloc d'alimentation de pile à combustible Download PDF

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Publication number
WO2020045994A1
WO2020045994A1 PCT/KR2019/011020 KR2019011020W WO2020045994A1 WO 2020045994 A1 WO2020045994 A1 WO 2020045994A1 KR 2019011020 W KR2019011020 W KR 2019011020W WO 2020045994 A1 WO2020045994 A1 WO 2020045994A1
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WIPO (PCT)
Prior art keywords
case
disposed
gas
gas supply
plate
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PCT/KR2019/011020
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English (en)
Korean (ko)
Inventor
심규정
성명훈
Original Assignee
(주)두산 모빌리티 이노베이션
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Publication of WO2020045994A1 publication Critical patent/WO2020045994A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00—Propulsion; Power supply
    • B64U50/10—Propulsion
    • B64U50/19—Propulsion using electrically powered motors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H01M8/04373—Temperature; Ambient temperature of auxiliary devices, e.g. reformers, compressors, burners
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/04425—Pressure; Ambient pressure; Flow at auxiliary devices, e.g. reformers, compressors, burners
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
    • H01M8/2485—Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • 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

Definitions

  • the present invention relates to a gas supply structure of a power pack for supplying power to a fuel cell.
  • Drone is a general term for an unmanned drone. Radio-controlled drones were initially used militaryly to intercept air force aircraft, AA guns, or missiles.
  • drone operation is whether it can be operated for a long time.
  • Most drones on the market today do not have long flight times.
  • the drone must be operated by driving a plurality of propellers because a lot of power is consumed to drive the propellers.
  • the size and weight of the battery may increase the size and weight of the drone, which may be inefficient.
  • payload values should be considered in the case of delivery-related drones, and the size and weight of the drone itself is one of the important factors in drone operation, and it is limited to increase the general battery in the market for long-term operation. There is.
  • An object of the present invention is to supply power from the fuel cell to reduce weight and at the same time to enable long-term operation of the aircraft, such as drones, and to maintain a stable weight even when mounted on the drone, the air circulation structure In order to maintain a stable operating environment temperature of the stack while contributing to the lifting composition of the aircraft, and to provide a fuel cell power pack with improved user convenience through a gas supply structure that can easily mount and detach the gas tank.
  • the present invention for achieving the above object relates to a gas supply structure of the fuel cell power pack, connected to the regulator valve coupled to the gas tank inserted into the case, the fuel gas to the stack portion disposed inside the case A gas supply unit disposed inside the case to supply the gas; And one side is fixed to the inside of the case, the other side is connected to the gas supply unit, the pressurizing unit for pressing the gas supply unit in the direction of the regulator valve; may include.
  • the pressing unit, the first plate is fixed to the inside of the case; A second plate connected to the gas supply unit; And an elastic body disposed between the first plate and the second plate.
  • the pressurizing unit may include a guide shaft fixed to the first plate, connected to the second plate, and supporting the movement of the second plate.
  • the elastic body may be disposed on the guide shaft between the first plate and the second plate.
  • the pressing unit may include a stopper disposed at the end of the guide shaft so that the second plate does not leave the guide shaft.
  • the first plate and the second plate is formed in a polygonal plate shape, and the guide shaft is disposed in a plurality of corners of each of the first plate and the second plate, the first of the case
  • the center of gravity may be positioned in the center line P of the direction V1.
  • the first plate and the second plate are arranged in a symmetrical shape with respect to the center line P of the first direction V1 of the case, and the guide shaft is in a symmetrical number. Can be arranged.
  • the first plate and the second plate is formed in a disc shape
  • the guide shaft is disposed in a plurality at a predetermined interval along the circumference of the first plate and the second plate, the case The center of gravity may be positioned on the center line P of the first direction V1.
  • the center of the first plate and the second plate is positioned on the center line of the first direction of the case, and the guide shaft is based on the center line P of the first direction V1 of the case. It may be arranged in a number symmetrical on both sides.
  • the cutting groove may be formed in the first plate or the second plate to reduce the weight.
  • the gas supply unit, the manifold block is connected to the regulator valve of the gas tank; And a gas supply pipe connecting the manifold block and the stack part.
  • the manifold block may be configured to be positioned on the center line P of the first direction V1 of the case.
  • the gas tank is disposed on the center line P of the first direction V1 of the case, and the stack part is disposed in a symmetrical position on both sides of the gas tank in the case.
  • the gas supply pipes are branched from the manifold block in a number corresponding to the plurality of stack parts, and the plurality of gas supply pipes are connected to each other on both sides of the case based on the center line P of the first direction V1. It may be configured to be placed in a symmetrical shape or position.
  • the gas supply pipe may be configured to be connected to the upper side of the stack.
  • the regulator valve the connector portion connected to the outlet of the gas tank; And one end is connected to the connector portion, the other end is inserted into the manifold block opening and closing portion for opening and closing the gas supply from the connector portion to the manifold block.
  • the manifold block the body portion is formed in the insertion space of the shape corresponding to the opening and closing portion on one side; A link part disposed at the other side of the body part and having a manifold flow path formed so that gas discharged from the regulator valve inserted into the insertion space flows into the stack part; And a pressing part formed to press the opening and closing part inside the insertion space.
  • the gas supply unit may include a flow control valve disposed in the manifold flow passage, and controls the flow rate of the gas discharged from the regulator valve.
  • the opening and closing portion is connected to the connector portion formed on one side and the opening and closing space is formed, the other side is formed on the other side is connected to the internal flow passage through the opening and closing space and the manifold flow path
  • a valve body including a dispersion passage and a valve protrusion protruding toward the pressing portion and having the dispersion passage formed therein;
  • An opening and closing bar having one end disposed in the opening and closing space of the inner flow passage, and the other end passing through the valve body toward the pressing part;
  • a valve elastic body disposed inside the inner channel to elastically press the opening / closing bar toward the pressing part.
  • the embodiment of the present invention may include a first sealing disposed on the outer surface of the valve body to prevent the leakage of gas between the inner surface of the insertion space and the outer surface of the valve body.
  • the embodiment of the present invention may include a second sealing disposed on the outer surface of the valve protrusion, so that the gas leakage between the valve protrusion and the insertion coupling surface of the manifold block is blocked.
  • the regulator valve is disposed in the connector, the pressure reducing portion for adjusting the pressure of the gas flowing out of the gas tank;
  • a gas charging unit disposed in the connector and filling fuel gas into the gas tank;
  • a pressure sensor disposed in the connector to measure an internal gas pressure of the gas tank;
  • a temperature response type pressure discharge part disposed in the connector part and discharging the gas pressure inside the gas tank in response to the internal gas temperature of the gas tank.
  • the present invention provides a power pack driven by a fuel cell, and has a superior power to weight ratio compared to a general battery applied to a vehicle such as a drone in the market, thereby enabling long-term operation of the drone and increasing the payload value of the drone.
  • the present invention is designed to streamline the case to minimize the air resistance that can be generated according to the various directions of the drone.
  • the present invention is to arrange the hydrogen tank in the center side of the case, by placing a plurality of stacks in positions symmetrical to both sides of the hydrogen tank inside the case, to achieve a weight balance, it is possible to achieve stable starting operation of the drone have.
  • the present invention is arranged on the rear side of the case is arranged a hydrogen tank insertion port is provided with a fixing member for fixing the hydrogen tank, the pressure type manifold (manifold) block is disposed inside the front side of the case.
  • a hydrogen tank insertion port is provided with a fixing member for fixing the hydrogen tank
  • the pressure type manifold (manifold) block is disposed inside the front side of the case.
  • the present invention can be arranged in the manifold block by controlling the flow rate of the hydrogen gas supplied to the stack by placing an electronically controlled flow control valve, such as a solenoid valve, which is on / off the fuel cell at the timing desired by the user This allows the fuel cell to shut down in an emergency.
  • an electronically controlled flow control valve such as a solenoid valve
  • the present invention is a simple operation of the user inserts the regulator valve connected to the hydrogen tank in the manifold block, the opening and closing bar disposed inside the regulator valve is pressed by the pressing portion formed in the manifold block, the gas flow path is communicated It has a structure, which improves work convenience.
  • the present invention is connected to the gas supply pipe branching from the manifold block to the top of the stack, when the condensed water generated in the electrochemical reaction between hydrogen gas and air moves downward by gravity, hydrogen supplied to the stack from the gas supply pipe By preventing the inflow of gas to occur, the efficiency of chemical reaction in the stack was increased.
  • the present invention is to form a recess in the bottom portion of the case, so that the condensate generated in the inside of the case can be collected and discharged to a point, and at the same time to increase the structural rigidity of the case.
  • This keeps the interior of the case relatively clean, and can prevent exposure to condensate from controls such as circuit boards.
  • the control device can of course be insulated or waterproofed.
  • the present invention by placing a hot wire coil, an ultrasonic humidification sensor or a natural convection humidifier on the sump, to evaporate the condensate collected in the sump, to create a humidification environment for the operation of the stack, thereby the electrochemical reaction in the stack By promoting the efficiency of the fuel cell can be improved.
  • the present invention is to arrange a secondary battery, such as a lithium ion battery, and to control the power to be supplied in parallel with the fuel cell, to enable a stable power supply to the drone.
  • a secondary battery such as a lithium ion battery
  • a plurality of secondary batteries were arranged in symmetrical positions on both sides of the case with respect to the hydrogen tank, and even if one of the auxiliary batteries was fixed, the drone could be stably operated with the remaining auxiliary batteries.
  • the present invention is the air inlet to the front portion, the rear portion or the lower end of the case, the air outlet is disposed on both sides of the case, respectively, the fan is disposed on the air outlet, the fan is driven, through the front, rear or bottom Inflowed air was allowed to pass through the stack, and the inside of the case was formed at a relatively low pressure state or a negative pressure state, compared to the outside, thereby enabling smooth supply and supply of air supplied to the stack.
  • the controller for controlling the fuel cell can adjust the flow rate of air supplied to the stack through the rotational speed control of the fan motor, thereby enabling efficient operation of the fuel cell according to the operating environment and conditions.
  • the present invention by placing a circuit board on the air inlet, the heated circuit board is naturally cooled by the outside air during operation, thereby improving the cooling effect of the circuit board.
  • the present invention constitutes a sealed housing between the stack and the air outlet, and by forming a recirculation flow path on the sealed housing, a part of the air passing through the stack is recycled into the case through the recirculation flow path, the sudden The operating temperature of the stack was prevented.
  • the internal temperature of the case can maintain the optimized temperature of the fuel cell.
  • the present invention is arranged to help the composition of the lift of the drone by arranging a plurality of blinds on the air outlet, and arranged each of the blinds inclined downward to relatively match the air flow direction by the propeller of the drone. It also blocks rain and water from entering the system, even in snow and rain.
  • the present invention is to arrange the handle in the hydrogen tank so that the hydrogen tank can be easily handled, and a translucent glass-shaped lid (lid) on the upper portion of the case to facilitate the internal operation and maintenance between maintenance and user convenience Was planned.
  • 1 is a plan view of the present invention fuel cell power pack.
  • Figure 2 is a front view of the fuel cell power pack of the present invention.
  • Figure 3 is a side view of the present invention fuel cell power pack.
  • Figure 4 is a rear view of the present invention fuel cell power pack.
  • FIG. 5 is a bottom view of the present invention fuel cell power pack.
  • Figure 6 is a perspective view of the present invention fuel cell power pack.
  • Figure 7 is a perspective view showing the inside of the fuel cell power pack of the present invention.
  • Figure 8 is a side perspective view showing the interior of the present invention fuel cell power pack.
  • Figure 9 is a top view showing the interior of the fuel cell power pack of the present invention.
  • Figure 10 is a plan view showing the structure of the present invention the fixing member.
  • Figure 11 is a side view showing the structure of the fixing member of the present invention.
  • Figure 12 is a perspective view showing the structure of the present invention the fixing member.
  • FIG. 13 is a cross-sectional view taken along line E-E in FIG. 10.
  • 14A is a schematic sectional view showing a first embodiment of the discharge part of the present inventors
  • 14B is a schematic sectional view showing a second embodiment of the discharge unit of the present invention.
  • Fig. 15A is a schematic cross sectional view showing a third embodiment of the discharge unit of the present invention.
  • Fig. 15B is a schematic sectional view showing a fourth embodiment of the discharge unit of the present invention.
  • 16 is a plan view showing the air circulation structure in the fuel cell power pack of the present invention.
  • FIG. 17 is a partial cross-sectional view taken along line B-B in FIG. 2; FIG.
  • 18A is a partial cross-sectional view taken along line A-A in FIG.
  • FIG. 18B is an enlarged view of the portion M posted in FIG. 18.
  • FIG. 18B is an enlarged view of the portion M posted in FIG. 18.
  • Figure 19a is a partial cross-sectional view showing another embodiment of the air circulation structure of the present invention fuel cell power pack.
  • FIG. 19B is an enlarged view of the portion M posted in FIG. 19A.
  • FIG. 19B is an enlarged view of the portion M posted in FIG. 19A.
  • Figure 20a is a partial cross-sectional view showing another embodiment of the air circulation structure of the present invention fuel cell power pack.
  • FIG. 20B is an enlarged view of a portion L posted in FIG. 20A.
  • 21 is a plan view showing a gas supply structure in the present invention fuel cell power pack.
  • FIG. 22 is an enlarged view of a portion N posted in FIG. 20.
  • FIG. 22 is an enlarged view of a portion N posted in FIG. 20.
  • Figure 23 is a perspective view showing a first embodiment of the pressure unit structure of the present invention.
  • Fig. 24A is a perspective view showing one embodiment of a second embodiment of the pressurizing unit structure of the present invention.
  • Figure 24b is a perspective view showing another form of the second embodiment of the pressure unit structure of the present invention.
  • 25 is a cross-sectional view of a gas supply unit structure of the present invention.
  • FIG. 26 is an enlarged view of a portion H posted in FIG. 24.
  • FIG. 26 is an enlarged view of a portion H posted in FIG. 24.
  • Fig. 27 is a sectional view showing an arrangement of the flow control valve of the present invention.
  • 28 is a plan view of another embodiment of the present invention fuel cell power pack.
  • 29 is a front view of another form of the present invention fuel cell power pack.
  • FIG. 30 is a side view of another form of the present invention fuel cell power pack.
  • 31 is a rear view of another form of the present invention fuel cell power pack.
  • 32 is a bottom view of another form of the present invention fuel cell power pack.
  • 33 is a perspective view of another embodiment of the present invention fuel cell power pack.
  • FIG. 1 is a plan view of a fuel cell power pack 100 of the present invention
  • FIG. 2 is a front view of a fuel cell power pack 100 of the present invention
  • FIG. 3 is a side view of a fuel cell power pack 100 of the present invention
  • FIG. 5 is a rear view of the fuel cell power pack 100
  • FIG. 6 is a perspective view of a fuel cell power pack 100 of the present invention
  • FIG. 7 is a fuel cell power pack of the present invention.
  • FIG. 8 is a perspective view showing the inside of the apparatus 100
  • FIG. 8 is a side perspective view showing the inside of the fuel cell power pack 100 of the present invention
  • FIG. 9 is a top view showing the inside of the fuel cell power pack 100 of the present invention.
  • FIG. 10 is a plan view showing the structure of the fixing member 250 of the present invention
  • Figure 11 is a side view showing the structure of the fixing member 250 of the present invention
  • Figure 12 is a perspective view showing the structure of the fixing member 250 of the present invention
  • 13 is a cross-sectional view taken along line EE of FIG. 10
  • FIG. 14A is a schematic cross-sectional view showing a first embodiment of the discharge unit 600 according to the present invention
  • FIG. 14B is a second embodiment of the discharge unit 600 according to the present invention.
  • 15A is a schematic sectional view showing a third embodiment of the discharge unit of the present invention
  • FIG. 15B is a schematic sectional view showing a fourth embodiment of the discharge unit of the present invention.
  • the fuel cell power pack 100 of the present invention may include a case 200, a gas tank 300, and a fuel cell unit 400.
  • the fuel cell power pack 100 of the present invention may be a device mounted on a vehicle such as a drone to supply power.
  • a vehicle such as a drone to supply power.
  • the aircraft can be mounted as a device for powering a variety of equipment.
  • the case 200 may be mounted in a drone so that the overall appearance may be streamlined to minimize air resistance during flight. And to reduce the weight can be applied to materials such as reinforced plastics, carbon, titanium, aluminum.
  • a lead 204 may be disposed above the case 200.
  • the lid 204 has a lead handle 205 formed therein, and the user can hold the lid handle 205 to open the lid 204 to maintain various parts disposed in the case 200. .
  • An antenna hole 206 may be disposed at an upper side of the case 200.
  • the antenna hole 206 may be a portion in which an antenna for communication with a wireless terminal owned by the user protrudes outward.
  • the gas tank mounting / detaching unit 210 may be disposed on the rear portion 203 of the case 200.
  • the gas tank mounting / detaching unit 210 may include an insertion hole 211 corresponding to an external cross section of the gas tank 300 and a fixing member 250 for fixing the gas tank 300.
  • a tank handle 301 may be disposed at a rear end of the gas tank 300 so that a user may easily handle the gas tank 300, and the fixing member 250 may be provided at a side surface of the gas tank 300.
  • the insertion groove 302 may be disposed is demounted.
  • the gas filled in the gas tank 300 may be hydrogen gas.
  • the present invention is not limited thereto, and may be different fuel gases according to technological developments.
  • the fixing member 250 is a block body 251, a fixing bar 260, a moving block 255, a coil spring 265, a guide groove 253, It may be configured to include a guide protrusion 257, a fixing bolt 262 and a fixing groove 263.
  • the block body 251 may be bolted to the inner surface of the case 200 by a fixing bracket 267 to be adjacent to the insertion hole 211 and bolted thereto.
  • a moving groove 252 having a circular cross section may be formed in the block body 251 in the direction of the insertion groove 302 of the gas tank 300.
  • the moving block 255 may be formed with a cylindrical guide link 256 is inserted into the moving groove 252, the guide link 256 is inserted into the moving groove 252 is the moving block ( At the same time as connecting the fixed block 251 and 255, the movable block 255 may be arranged to be movable in the direction of the insertion groove (302).
  • the fixed bar 260 is connected to the moving block 255 and the plurality of link bars 258 and inserted into the insertion groove 302 of the gas tank 300 according to the movement of the moving block 255. Can be separated.
  • the coil spring 265 may be disposed between an inner surface of the block body 251 and an inner space of the guide link 256.
  • the coil spring 265 provides an elastic force to the guide link 256, so that the fixing bar 260 is fitted to the insertion groove 302 of the gas tank 300.
  • a guide groove 253 may be formed in the block body 251 along the moving direction of the moving block 255.
  • the moving block 255 may be formed with a guide protrusion 257 disposed in the guide groove 253, the guide protrusion 257 is inserted into the guide groove 253 is moved, the fixed bar ( The movement direction of the 260 is guided to the insertion groove 302.
  • the fixing bolt 262 may be disposed at the protrusion of the block body 251.
  • the fixing groove 263 may be disposed in the moving block 255 and may be a portion into which the end 262a of the fixing bolt 262 is inserted.
  • a power switch 820 for operating the fuel cell unit 400 disposed inside the case 200 may be disposed at the rear portion 203 of the case 200. . The user may simply click on the power switch 820 to determine whether the fuel cell power pack 100 is operating.
  • a fuel state display window 810 may be arranged to be connected to the gas tank 300 and to display a gas remaining amount of the gas tank 300. The user may check the remaining amount of gas by recognizing the color of the fuel state display window 810.
  • the fuel state display window 810 may be in the form of an indicator LED, but is not limited thereto.
  • the remaining gas amount may be 80 to 100%, and in the case of yellow, the remaining gas amount may be 40 to 70%. Insufficient 0 to 30% can indicate a state requiring gas filling. Other settings are possible.
  • a front window 221 may be disposed on the front portion 201 of the case 200, and the front window 221 may be an air inlet 220 through which external air flows into the case 200. have. At this time, the front window 221 is formed with a blind disposed in a plurality of rows, it is possible to block the relatively large foreign matter flowing into the case 200.
  • the air inlet 220 may be disposed in the form of the rear window 224 on both sides of the gas tank 300 on the case 200 together with the front window 221. Can be.
  • the case 200 may be disposed at a plurality of positions, and the position of the air inlet 220 is not limited on the case 200.
  • the air outlet 230 having a plurality of blinds may be disposed in the side portion 202 of the case 200, and the air introduced from the air inlet 220 circulates inside the case 200. It may be subjected to a flow process discharged to the outside through the air outlet 230.
  • the fuel cell unit 400 may be disposed in a weight balance with the gas tank 300 inside the case 200. Since the fuel cell power pack 100 of the present invention is mounted on a flying object such as a drone to fly together, the case 200, the gas tank 300, and the fuel cell unit 400 generally do not interfere with the maneuverability of the drone. It can be arranged in a balanced weight.
  • the fuel cell unit 400 may include a manifold unit 420 and a stack unit 410.
  • the manifold portion 420 may be a portion connected to the regulator valve 320 coupled to the gas tank 300.
  • the stack 410 is connected to the manifold 420 and may receive gas from the manifold 420.
  • the manifold portion 420 and the stack portion 410 are formed on the second portion of the case 200 based on the center line P of the first direction V1 of the case 200.
  • the weight balance may be arranged in the direction V2.
  • the manifold portion 420 may be disposed on the inner front portion 201 of the case 200, the plurality of the stack portion 410 is arranged, each other on both sides of the inside of the case 200 It may be placed in a symmetrical position.
  • the gas tank 300 and the plurality of stack portions 410 may be formed based on the center line P of the first direction V1 of the case 200.
  • the second direction V2 of the case 200 that is, it may be arranged to balance the weight on both sides.
  • the gas tank 300 is disposed on the center line P of the first direction V1 of the case 200, and the plurality of stack portions 410 are the case 200.
  • the inner both sides of the gas tank 300 with respect to each other may be disposed in a position symmetrical with respect to.
  • the gas tank 300 is disposed in the center of the case 200, the stack portion 410 is composed of two, as shown in Figure 9, the same on both sides with respect to the gas tank 300, respectively Is placed in position. Accordingly, the fuel cell power pack 100 of the present invention may have a weight balance in the second direction V2 based on the center line P of the first direction V1.
  • This weight balance arrangement can reduce the influence on the drone start by minimizing the variation in the center of gravity of the drone when the fuel cell power pack 100 is mounted on the drone.
  • the auxiliary power supply unit 500 may be disposed inside the case 200, connected in parallel with the fuel cell unit 400, and configured to supply power to the drone.
  • the fuel cell unit 400 and the auxiliary power source unit 500 are connected in parallel on the control panel 830, thereby selectively supplying power to the drone.
  • the auxiliary power supply 500 may supply the output to be insufficient.
  • the auxiliary power supply 500 supplies emergency power to stop the drone in flight. It can prevent.
  • the auxiliary power supply unit 500 may be provided in plural numbers.
  • the auxiliary power supply unit 500 may be disposed on the basis of the center line P of the first direction V1 of the case 200 so as not to interfere with the maneuvering of the flying object.
  • the front parts 201 of the case 200 may be disposed at positions symmetrical with each other.
  • the auxiliary power supply unit 500 includes a plurality of stacking units.
  • the stack unit 410 constituting the fuel cell unit 400 also includes a plurality of stacking units.
  • the plurality of auxiliary power supply units 500 are disposed in a weight balance at positions symmetrical with respect to the inside of the case 200 with respect to the center line P of the first direction V1 of the case 200.
  • the stack unit 410 and the auxiliary power supply unit 500 are each composed of two, and the case (see FIG. 9) is based on the center line P of the first direction V1. It can be seen that placed in a position symmetrical with each other in the interior of the 200 to balance the weight.
  • the gas tank 300, the manifold portion 420, and the control panel 830 are disposed on the center line P in the first direction V1. This may be arranged to achieve a weight balance between the front part 201 of the case 200 and the rear part 203 of the case 200 along the center line P of the first direction V1.
  • the stack unit 410 and the auxiliary power supply unit 500 are disposed at symmetrical positions on both sides of the center line P of the first direction V1 in the case 200 to achieve a weight balance, and the gas
  • the tank 300, the manifold 420, and the control panel 830 are located on the center line P of the first direction V1 in the case 200 and are located at the front part 201 of the case 200.
  • the rear surface 203 of the case 200 may be disposed in a balance of weight.
  • the stack part 410, the auxiliary power supply part 500, the gas tank 300, the manifold part 420, and the control panel 830 are generally disposed inside the case 200. Since the weight balance is arranged in both directions V1 and V2, even if the fuel cell power pack 100 is mounted on the drone, the weight balance of the drone can also be maintained without being biased to either side.
  • the weight balance arrangement of the above components contributes to the smooth running of the drone by minimizing the influence on the drone's starting environment.
  • the discharge part 600 is formed at an inner lower surface of the case 200 and is external to the condensate discharged from the stack part 410 or the inside of the case 200.
  • the condensate generated by condensation of air may be collected and discharged.
  • the discharge part 600 may include a drain tank 610, a first drain pipe 620, and a second drain pipe 630.
  • the drainage tank 610 may be formed in a recessed shape on the inner lower surface of the case 200 to collect the condensed water. 2 and 5, in the embodiment of the present invention, two may be formed at both sides of the front part 201 of the case 200, which is the stack part 410 inside the case 200. It is arranged on both sides.
  • the first drain pipe 620 may be connected to a lower portion of the stack 410 and disposed in the drain 610 and may be provided to discharge condensed water discharged from the stack 410 to the outside.
  • the condensed water generated after the electrochemical reaction of oxygen and hydrogen in the stack 410 is discharged to the outside through the first drain pipe 620.
  • the second drain pipe 630 may be disposed in the drain tank 610 and may be provided to discharge condensed water generated by condensation of external air in the case 200 to the outside.
  • the discharge part 600 is disposed in the drain tank 610, and evaporates the condensed water collected in the drain tank 610 to humidify the inside of the case 200. It may further include a humidifying unit 640 to create an environment.
  • the stack of a fuel cell may promote the electrochemical reaction of oxygen and hydrogen in a humid environment rather than in a dry environment, thereby increasing the power generation efficiency of the fuel cell.
  • the humidifying unit 640 is configured to evaporate the condensate collected and disposed in the drain 610 to create a humidifying environment in which the electrochemical reaction may be promoted in the stack 410, thereby stacking the stack 410. ) To increase the power generation efficiency.
  • the humidifying unit 640 may be configured in the form of a hot wire coil, as shown in Figure 14a.
  • a hot wire coil may be disposed on the drain tank 610, and the condensed water collected in the drain tank 610 may receive heat from the hot coil and evaporate to create a humidified environment.
  • the control of the heating coil may be controlled by the control panel 830, and the power supplied to the heating coil may be supplied by the stack unit 410 or the auxiliary power supply unit 500.
  • the humidification unit 640 may be an ultrasonic humidification sensor as shown in FIG. 14B.
  • An ultrasonic humidification sensor may be disposed on the sump 610, and the condensed water collected in the sump 610 becomes steam by vibration generated by ultrasonic waves to form the inside of the case 200 as a humidification environment. can do.
  • the control of the ultrasonic humidification sensor is possible in the control panel 830, the power supplied to the ultrasonic humidification sensor may be supplied from the stack unit 410 or the auxiliary power supply unit 500.
  • the humidifying unit 640 may be a natural convection humidifier.
  • the discharge part 600 may include another type of drain 650.
  • the humidifying unit 640 is arranged in the same way, the drain hole 650 has a gap hole 653 is formed.
  • the condensed water collected in the sump 610 is discharged to the outside through the gap hole 653, wherein the gap hole 653 is made of a cross-shaped gap, the condensate is not discharged quickly at once, but slowly While entering into the gap hole 653 is discharged by gravity.
  • This is a design considered in order to secure a time for the humidifying unit 640 to evaporate the condensate to create a humidifying environment.
  • the drain 650 may be implemented with a rigid material such as plastic, metal, etc. On the contrary, the drain 650 may be implemented with a soft material such as rubber or silicon, and in this case, a separate drain pipe may be inserted to discharge condensate. The structure can be changed to.
  • FIG. 16 is a plan view showing an air circulation structure of the fuel cell power pack 100 of the present invention
  • FIG. 17 is a BB partial cross-sectional view shown in FIG. 2
  • FIG. 18A is a AA partial cross-sectional view shown in FIG. 1
  • FIG. 18B is a FIG. An enlarged view of part M posted in 18a.
  • the air circulation structure of the fuel cell power pack 100 of the present invention may include an air inlet 220, an air outlet 230, and a flow guide unit 700.
  • the air inlet 220, the air outlet 230, and the flow guide unit 700 may be disposed in the case 200 of the fuel cell power pack 100.
  • the air inlet 220 may be disposed below the front portion 201 of the case 200 and may be a portion into which outside air is introduced.
  • the front window 221 in which a plurality of blinds are disposed on the front portion 201 of the case 200 may be an air inlet 220.
  • the position of the air inlet 220 is not limited on the case 200.
  • control panel 830 may be disposed above the air inlet 220 in the case 200 and may be configured to be cooled by the air introduced from the air inlet 220. That is, when the fuel cell is operated, the circuit disposed in the control panel 830 is heated. In this case, the circuit is naturally cooled by the flow of air introduced from the outside.
  • the air outlet 230 may be spaced apart from the air inlet 220 in the case 200, and may be a portion from which air introduced into the case 200 is discharged. In this case, the air outlet 230 may be disposed adjacent to the stack 410.
  • the gas tank 300 is disposed at the central side of the case 200, and the stack 410 is disposed at both sides of the gas tank 300. Therefore, the air outlet 230 may be disposed at the side portion 202 of the case 200 adjacent to the stack portion 410.
  • the air flowing from the air inlet 220 passes through the stack 410 and is guided by the flow guide unit 700 to be discharged to the air outlet 230.
  • the flow guide unit 700 may be disposed in association with the stack 410 and the air outlet 230, and may be provided to guide the air flow in the case 200.
  • the flow guide unit 700 may include a sealed housing 710, a fan member 730, a recirculation flow path 720 and a blind 740.
  • the airtight housing 710 may have a periphery around one surface of the stack 410 and an outer periphery of the air outlet 230 so that air passing through the stack 410 flows in the direction of the air outlet 230.
  • the inner side portion 202 of the case 200 may be disposed to seal.
  • the hermetic housing 710 may be composed of a plurality of plates of the hermetic housing 710, it is arranged to surround the one surface circumference of the stack portion 410 and the inner side portion 202 of the case 200 from all sides to form a sealed space. Can be.
  • the air passing through the stack 410 flows only in the direction of the air outlet 230.
  • the fan member 730 may be disposed at the air outlet 230.
  • the air inside the case 200 is discharged to the outside, and the inside of the case 200 is formed in a relatively low pressure state or a negative pressure state compared to the external environment. Will be.
  • the present invention operates the fan member 730 to forcibly create an air circulation environment inside the case.
  • the fan member 730 is disposed in a space formed by the air outlet 230, the sealed housing 710, and the stack 410, so that the air is discharged by the fan member 730.
  • the air flow environment is adjusted to force the air introduced into the air inlet 220 to pass through the stack 410.
  • the user may control the rotational speed of the fan member 730 with the controller to adjust the amount of air introduced into the case 200 by the pressure difference. This ultimately controls the amount of air supplied to the stack 410, which may be a means of controlling the output of the stack 410.
  • the fan member 730 may include a fan bush 731, a driving motor 733, and a fan blade 735.
  • the fan bush 731 may be provided in a cylindrical shape and disposed at the air outlet 230.
  • a driving motor 733 may be disposed at the central portion of the fan bush 731.
  • the fan blade 735 may be connected to the rotation shaft of the driving motor 733.
  • the operating environment of the fuel cell stack needs to be optimally maintained.
  • the operating environment temperature is an important factor, and the operating environment temperature of the fuel cell stack is affected by the external environment temperature in which the drone is operated.
  • the operating environment temperature of the stack unit 410 disposed inside the case 200 may not be maintained at an appropriate temperature. In this case, it is necessary to increase the internal temperature of the case 200 to an appropriate temperature.
  • the operating environment temperature of the stack unit 410 disposed inside the case 200 may not be maintained at an appropriate temperature. In this case, it is necessary to lower the internal temperature of the case 200 to an appropriate temperature.
  • the recirculation passage 720 on the sealed housing 710. May be arranged.
  • the air passing through the stack part 410 is air after cooling the stack part 410 which is air-cooled, and maintains a temperature relatively similar to that of the stack part 410, and thus remains on the sealed housing 710.
  • the internal temperature of the case 200 may be similar to the operating environment temperature of the stack 410.
  • the internal temperature may be lowered to an operating environment temperature of the stack unit 410.
  • the internal temperature of the case 200 is adjusted to the operating environment temperature of the stack 410, thereby increasing the operating efficiency of the stack 410.
  • the flow guide unit 700 may further include a recirculation control mechanism 722.
  • the recirculation control mechanism 722 may be disposed in the recirculation flow path 720 and configured to control the flow rate of the recirculated air.
  • the recirculation control mechanism 722 may be a slide type on / off valve or a butterfly type on / off valve through electronic control, but is not limited thereto.
  • the user may adjust the degree of opening and closing of the recirculation control mechanism 722 by using a controller.
  • the user may close the recirculation control mechanism 722 to close the recirculating housing 710. All of the air remaining inside the) can be discharged to the outside through the air outlet 230.
  • the blind 740 of the present invention is disposed to be inclined in the downward direction, when all the air in the closed housing 710 is discharged to the air outlet 230, contributes to the lifting composition of the flying object You can do
  • the internal temperature of the case 200 can be quickly adjusted to the operating environment temperature of the stack 410.
  • the blind 740 may be disposed at the air outlet 230, and may be provided to guide the flow direction of the outflowing air.
  • the blind 740 may be inclined downward so that the air discharged from the air outlet 230 flows downward.
  • the fuel cell power pack 100 of the present invention may be disposed above or below the drone.
  • the drone of the propeller driving method since the drone is supported by the lifting force generated by the propeller rotation, when the inclination direction of the blind 740 is set downward, the air is discharged from the air outlet 230 and flows downward.
  • the flow direction of the outside air flowing downward through the propeller T of the drone is matched to contribute to the lift composition of the drone.
  • the inclination angle ⁇ 1 of the blind 740 is in a range of 10 ° to 80 ° in the downward direction with respect to the horizontal line. It may be formed as, preferably may be around 60 °.
  • a plurality of blinds 740 may be disposed on the air outlet 230, and lengths of the plurality of blinds 740 may be reduced from the upper side to the lower side of the air outlet 230. .
  • the air outlet 230 on the case 200 may be inclined toward the inside of the case 200 from the upper side to the lower side.
  • the length of the blind 740 is also formed to be reduced toward the lower side from the upper side of the air outlet 230, the air flowing out also flows downward.
  • the length of the blind 740 is reduced at a predetermined ratio, which may correspond to the ratio angle ⁇ 2 of which the air outlet 230 decreases from the upper side to the lower side.
  • the air passing through the blinds 740 arranged in a plurality of rows may exhibit a relatively uniform flow.
  • the length of the lower blind 742 disposed below is shorter than that of the upper blind 741 disposed above, so that it is not disturbed by the downward flow.
  • any one of the lower blinds 742 is longer than the upper blinds 741 disposed thereon.
  • the lower blind 742 disposed below the lower serves as an obstacle, and mixes with the air discharged along the lower blind 742
  • turbulent flow may be generated around the air outlet 230. This makes it difficult to release the air and can rather hinder the maneuvering of the drone.
  • the length reduction of the blind 740 may be maintained at a constant rate for creating a drone's maneuvering environment, such as smooth downward discharge of air and lift lift.
  • the air flowing out due to the change of the length according to the downward inclination angle ⁇ 1 of the blind 740 and the predetermined ratio angle ⁇ 2 of the blind 740 may be strongly discharged downward.
  • This overlapping configuration contributes to the drone's maneuvering environment, such as lifting lift.
  • 16 shows the air flow according to the air circulation structure of the fuel cell power pack 100 as described above.
  • the internal air of the case 200 is discharged to the air outlet 230 so that the interior of the case 200 is in a low pressure state or a negative pressure state relative to the outside.
  • the outside air is introduced due to the pressure difference through the front window 221 disposed on the front part 201 of the case 200, and the air introduced therein is located above the inside of the front part 201 of the case 200.
  • the control panel 830 is naturally cooled, and is circulated and flows into the case 200.
  • the air circulated in the case 200 passes through one surface of the stack 410, as shown in FIG. 16, and generates power by an electrochemical reaction with hydrogen in the stack 410.
  • the stack unit 410 is cooled by air and flows in the sealed housing 710 direction.
  • Air flowing into the sealed housing 710 passes through the fan member 730 and is discharged to the outside through the air outlet 230.
  • the user sets the opening and closing degree of the recirculation control mechanism 722 through a controller to the case through the recirculation flow path 720.
  • the air flow rate circulated to the inside of the 200 can be adjusted.
  • a part of the air passing through the recirculation passage 720 circulates again inside the case 200 and maintains a temperature relatively similar to the operating environment temperature of the stack 410.
  • FIGS. 19A, 19B, 20A, and 20B are identical to FIGS. 19A, 19B, 20A, and 20B.
  • FIG. 19A is a partial cross-sectional view showing another embodiment of the air circulation structure of the fuel cell power pack of the present invention
  • FIG. 19B is an enlarged view of the portion M shown in FIG. 19A.
  • FIG. 20A is a partial cross-sectional view showing another embodiment of the air circulation structure of the fuel cell power pack of the present invention
  • FIG. 20B is an enlarged view of the L portion shown in FIG. 20A.
  • another embodiment of the air circulation structure of the fuel cell power pack 100 according to the present invention includes an air inlet 220, an air outlet 230, and a flow guide unit 700.
  • the air inlet 220, the air outlet 230, and the flow guide unit 700 may be disposed in the case 200 of the fuel cell power pack 100.
  • the module frame 900 may be disposed inside the case 200.
  • the module frame 900 may be a separate component mounted inside the case 200, or may be part of the case 200.
  • the tank accommodating part 910 may be formed at the central side of the module frame 900, and the gas tank 300 may be disposed.
  • the stack part accommodating part 920 may be formed at both sides of the module frame 900, and a plurality of stack parts 410 may be disposed. Accordingly, the air outlet 230 may be disposed at the side portion 202 of the case 200 adjacent to the stack 410.
  • the stack portion 410 may be inclined and fixed to the first and second receiving surfaces 921 and 923 of the stack portion receiving portion 920 by the first and second fastening units 922 and 924, respectively.
  • the air flows from the air inlet 220 and passes through the stack 410 to guide the flow direction by the flow guide unit 700 to be discharged to the air outlet 230.
  • the flow guide unit 700 is disposed in association with the stack part 410 and the air outlet 230, and passes through the stack part 410 in the case 200 to allow the air outlet ( 230 may be provided to adjust the flow of air flowing in the direction.
  • the flow guide unit 700 may include a sealed housing 710, a fan member 730, a recirculation flow path 720 and a blind 740.
  • the airtight housing 710 has a duct disposed around the one surface of the stack 410 and the air outlet 230 so that air passing through the stack 410 flows in the direction of the air outlet 230. It may be disposed sealing the outer periphery of 760.
  • it may be composed of a plurality of plates of the hermetic housing 710, wrap around one surface of the stack portion 410, one plate is connected to the outer circumference of the duct 760 may form a sealed space have.
  • the air passing through the stack 410 flows only in the direction of the duct 760 of the air outlet 230.
  • a fixing panel 713 may be disposed to connect and fix the side part of the case 200 and the sealing housing 710 so that the position of the sealing housing 710 is fixed inside the case 200.
  • the fixing panel 713 may have an opening window 713a having a rectangular cross-sectional shape connecting one surface of the stack part 410 and one surface of the sealed housing 710.
  • the sealing unit 714 may be disposed along a circumference of the opening window 713a facing the stack 410.
  • the sealing unit 714 is in close contact with the circumference of one surface of the stack portion 410, so that the air passing through the stack portion 410 may flow in the sealed housing 710 without leaking.
  • the fan member 730 may be disposed to be connected to the duct 760 of the air outlet 230.
  • the air inside the case 200 is discharged to the outside through the air outlet 230, the interior of the case 200 relative to the external environment The negative pressure or low pressure is formed.
  • the present invention operates the fan member 730 to forcibly create an air circulation environment inside the case 200.
  • the fan member 730 is disposed in a space formed by the duct 760 of the air outlet 230, the sealing housing 710, and the stack 410, and thus, the fan member 730 may not be operated. Air discharge by adjusting the air flow environment to force the air introduced into the air inlet 220 to pass through the stack 410.
  • the user may control the rotational speed of the fan member 730 with the controller to adjust the amount of air introduced into the case 200 by the pressure difference. This ultimately controls the amount of air supplied to the stack 410, which may be a means of controlling the output of the stack 410.
  • the fan member 730 may include a fan bush 731, a driving motor 733, and a fan blade 735.
  • the fan bush 731 may be provided in a cylindrical shape and may be connected to the inner circumference of the duct 760 of the air outlet 230.
  • a driving motor 733 may be disposed at the central portion of the fan bush 731.
  • the fan blade 735 may be connected to the rotation shaft of the driving motor 733.
  • the operating environment of the fuel cell stack needs to be optimally maintained.
  • the operating environment temperature is an important factor, and the operating environment temperature of the fuel cell stack is affected by the external environment temperature in which the drone is operated.
  • the operating environment temperature of the stack unit 410 disposed inside the case 200 may not be maintained at an appropriate temperature. In this case, it is necessary to increase the internal temperature of the case 200 to an appropriate temperature.
  • the operating environment temperature of the stack unit 410 disposed inside the case 200 may not be maintained at an appropriate temperature. In this case, it is necessary to lower the internal temperature of the case 200 to an appropriate temperature.
  • the recirculation passage 720 is disposed on the closed housing 710. Can be.
  • the air passing through the stack part 410 is air after cooling the stack part 410 which is air-cooled, and maintains a temperature relatively similar to that of the stack part 410, and thus remains on the sealed housing 710.
  • the internal temperature of the case 200 may be similar to the operating environment temperature of the stack 410.
  • the internal temperature may be lowered to an operating environment temperature of the stack unit 410.
  • the internal temperature of the case 200 is adjusted to the operating environment temperature of the stack 410, thereby increasing the operating efficiency of the stack 410.
  • the flow guide unit 700 may further include a recirculation control mechanism 722.
  • the recirculation control mechanism 722 may be disposed in the recirculation flow path 720 and configured to control the flow rate of the recirculated air.
  • the recirculation control mechanism 722 may be a slide type on / off valve or a butterfly type on / off valve through electronic control, but is not limited thereto.
  • the user may adjust the degree of opening and closing of the recirculation control mechanism 722 by using a controller.
  • the user may close the recirculation control mechanism 722 to close the recirculating housing 710. All of the air remaining inside the) can be discharged to the outside through the air outlet 230.
  • the blind 740 of the present invention is disposed to be inclined or curved in a downward direction, when all the air of the closed housing 710 is discharged to the air outlet 230, the lifting force of the flying object Can contribute to the composition.
  • the internal temperature of the case 200 can be quickly adjusted to the operating environment temperature of the stack 410.
  • the blind 740 may be disposed in the duct 760 of the air outlet 230 and may be provided to guide the flow direction of the outflowing air.
  • the air circulation structure of the fuel cell power pack 100 of the present invention is ultimately drone when the air introduced from the air inlet 220 is discharged to the air outlet 230 after circulating the inside of the case 200. It can be designed to show a flow that can contribute to the lift composition of.
  • the stack part 410 may be disposed to be inclined downward in a predetermined angle ⁇ 1 on the stack part accommodating part 920 of the module frame 900.
  • the sealed housing 710 may also be connected to be inclined downward in a predetermined angle ⁇ 2 on one surface of the stack 410.
  • the fan member 730 may also be disposed on the air outlet 230 to be inclined downward in a predetermined angle ( ⁇ 3) range.
  • the blind 740 may be disposed to be inclined or curved in a downward direction so that air discharged from the air outlet 230 flows downward.
  • the stack portion receiving portion 920 of the module frame 900 is provided in a form inclined downward in a predetermined angle ( ⁇ 1) range relative to the vertical direction (H1), the stack portion 410 Is inclined to the stack portion receiving portion 20.
  • the inclination angle ⁇ 1 of the stack 410 may be in a range of 5 ° to 15 °, and an inclination angle of about 5 ° may be adopted in the embodiment of the present invention.
  • the opening window 713a of the fixing panel 713 is in close contact with one surface of the stack portion 410 by the sealing unit 714. Since the stack part 410 is disposed to be inclined downward in the stack part accommodating part 920, the fixing panel 713 is also downward in the inclined angle ⁇ 2 corresponding to the stack part 410. It is arranged to be inclined.
  • the sealed housing 710 since the sealed housing 710 is connected along the circumference of the opening window 713a of the fixing panel 713, the sealed housing 710 is basically inclined downward at an angle corresponding to the inclination angle of the stack 410. Can be.
  • the inclination angle ⁇ 2 of the hermetic housing 710 may be in the range of 5 ° to 15 °, in the same manner as the stack 410, and may be about 5 °.
  • the sealed housing 710 may be arranged to be further inclined downward in a predetermined angle range on one surface of the stack 410.
  • the inclination angle ⁇ 2 of the hermetic housing 710 is greater than the inclination angle range of the stack 410.
  • the inclination angle of the sealed housing 710 may be connected to be inclined more in a range of 10 ° to 20 ° than the stack part 410 with respect to one surface of the fixed panel 713.
  • the air outlet 230 may also be arranged to face downward basically. Accordingly, the fan member 730 may also be disposed to face downward in the same manner as the air outlet 230.
  • the fan member 730 since the fan member 730 is connected to the sealed housing 710, in one embodiment, the fan member 730 may be inclined downward at an angle corresponding to the inclination angle ⁇ 2 of the sealed housing 710. In this case, the inclination angle ⁇ 3 of the fan member 730 may be in the range of 5 ° to 15 ° in the same manner as the sealed housing 710, and may be about 5 °.
  • the inclination angle ⁇ 3 of the fan member 730 may be greater than the inclination angle ⁇ 2 of the sealed housing 710.
  • the inclination angle range of the fan member 730 may be in the range of 10 ° to 25 °.
  • the inclination angle ⁇ 3 of the fan member 730 may be greater than the inclination angles ⁇ 1 and ⁇ 2 of the stack part 410 and the sealed housing 710.
  • the inclination angle ⁇ 1 range of the stack portion 410 is 5 ° to 15 °
  • the inclination angle ⁇ 2 range of the sealed housing 710 inclined more than the stack portion 410 is 10 °. If it is ⁇ 20 °, the inclination angle ⁇ 3 of the fan member 730 may be in a range of 15 ° to 30 °.
  • the inclination angles of the stack 410, the sealed housing 710, and the fan member 730 are gradually inclined according to the air flow direction, so that the air flows smoothly downward.
  • the blind 740 is formed to be inclined or curved in the downward direction on the air outlet 230.
  • the propeller 213 may be disposed above the air outlet 230.
  • the air outlet 230 The discharge direction of the air flows downward from the air flowing downward through the propeller 213 of the drone coincides with the flow direction of the outside air, thereby contributing to the lift composition of the drone.
  • the inclination angles ⁇ 11 and ⁇ 12 of the blind 740 are downward based on the horizontal direction H2.
  • the angle of inclination ⁇ 11 may be in the range of 5 ° to 45 °, and the inclination angle ⁇ 12 may be in the range of 30 ° to 80 °.
  • the inclination angle ⁇ 11 may be about 30 °, and the inclination angle ⁇ 12 may be about 60 °.
  • the stack unit 410, the sealed housing 710, and the fan member 730 will be described in connection with the inclination angles ⁇ 1, ⁇ 2, and ⁇ 3.
  • the inclination angle of the stack 410, the sealed housing 710, and the fan member 730 may be in a range of 5 ° to 15 °, and preferably about 5 °.
  • the inclination angles ⁇ 1, ⁇ 2, ⁇ 3 of the stack 410, the sealed housing 710, and the fan member 730 may gradually increase according to the air flow direction. It may be arranged obliquely.
  • the discharge flow of air may smoothly proceed in a direction in which lift composition contributes.
  • a plurality of blinds 740 may be disposed on the duct 760 of the air outlet 230, and lengths of the plurality of blinds 740 are reduced from the upper side to the lower side of the air outlet 230. Can be formed.
  • the air outlet 230 on the case 200 is formed to be inclined or curved toward the inside of the case 200 from the upper side to the lower side.
  • the length of the blind 740 is also formed to be reduced toward the lower side from the upper side of the air outlet 230, the air flowing out also flows downward.
  • the length of the blind 740 is reduced at a predetermined ratio, which may correspond to the ratio angle ⁇ 2 of which the air outlet 230 decreases from the upper side to the lower side.
  • the air passing through the blinds 740 arranged in a plurality of rows may exhibit a relatively uniform flow.
  • the length of the lower blind 742 disposed below is shorter than that of the upper blind 741 disposed above, so that it is not disturbed by the downward flow.
  • any one of the lower blinds 742 is longer than the upper blind 741 disposed thereon.
  • the lower blind 742 disposed below the lower serves as an obstacle, and mixes with the air discharged along the lower blind 742
  • turbulent flow may be generated around the air outlet 230. This makes it difficult to release the air and can rather hinder the maneuvering of the drone.
  • the length reduction of the blind 740 may be maintained at a constant rate for creating a drone's maneuvering environment, such as smooth downward discharge of air and lift lift.
  • the air flowing out by the downward slope angles ⁇ 11 and ⁇ 12 of the blind 740 and the length change according to the predetermined ratio angle ⁇ 2 of the blind 740 may be strongly discharged downward.
  • This overlapping configuration contributes to the drone's maneuvering environment, such as lifting lift.
  • the blind 740 may be disposed to be inclined downward on the air outlet 230. .
  • the propeller 213 may be disposed above the air outlet 230 in the drone in which the fuel cell power pack 100 of the present invention is mounted, and thus the inclined direction of the blind 740 may be lowered. As set in the direction, the flow direction of the air discharged from the air outlet 230 and flows in the downward direction and the outside air flowing in the downward direction through the propeller 213 of the drone coincides, thus contributing to the lift composition of the drone. Done.
  • the inclination angle ⁇ 3 of the blind 740 is 5 in the downward direction based on the horizontal direction H2. It may be formed between ° ⁇ 80 °, preferably the inclination angle ( ⁇ 3) may be around 60 °.
  • the stack unit 410, the sealed housing 710, and the fan member 730 will be described in connection with the inclination angles ⁇ 1, ⁇ 2, and ⁇ 3.
  • the inclination angle of the stack 410, the sealed housing 710, and the fan member 730 may be in a range of 5 ° to 15 °, and preferably about 5 °.
  • the inclination angles ⁇ 1, ⁇ 2, ⁇ 3 of the stack 410, the sealed housing 710, and the fan member 730 may gradually increase according to the air flow direction. It may be arranged obliquely.
  • the air passing through the stack portion 410 and flowing in the direction of the blind 740 is gradually induced to flow downward, the discharge flow of air smoothly contributes to the lift composition. It can proceed to.
  • FIG. 21 is a plan view showing a gas supply structure in the fuel cell power pack 100 of the present invention
  • FIG. 22 is an enlarged view of a portion N shown in FIG. 21,
  • FIG. 23 is a view illustrating a structure of the pressurizing unit 480 of the present invention.
  • 24A is a perspective view showing a first embodiment
  • FIG. 24A is a perspective view showing one embodiment of a second embodiment of the structure of the pressure unit 480 of the present invention
  • FIG. 24B is another view of the second embodiment with respect to the pressure unit structure of the present invention.
  • 25 is a perspective view showing the form
  • FIG. 25 is a plan sectional view of the structure of the gas supply unit 430 of the present invention
  • FIG. 26 is an enlarged view of the portion H shown in FIG. 25
  • FIG. 27 is a flow control valve of the present invention. It is sectional drawing which shows the arrangement structure of 490.
  • FIG. 25 is a plan view showing a gas supply structure in the fuel cell power pack 100 of the
  • the gas supply structure of the fuel cell power pack 100 of the present invention may include a gas supply unit 430 and a pressurizing unit 480.
  • the gas supply unit 430 is connected to the regulator valve 320 of the gas tank 300 inserted into the case 200, the gas to the stack unit 410 disposed inside the case 200. It may be disposed on the front portion 201 of the case 200 to supply.
  • the pressurizing unit 480 is fixed to one side of the front part 201 of the case 200, the other side is connected to the gas supply unit 430, the gas supply unit 430 the regulator It may be configured to pressurize in the direction of the valve (320).
  • the pressing unit 480 may include a first plate 481, a second plate 483, a pressing elastic body 487, and a guide shaft 488.
  • the first plate 481 may be fixed inside the front part 201 of the case 200, and the second plate 483 may be connected to the gas supply unit 430.
  • the first plate 481 and the second plate 483 may be made of a material such as reinforced plastic, carbon, titanium, aluminum, etc. to reduce the weight.
  • a cutting groove 485 in the form of a honeycomb may be processed in the first plate 481 or the second plate 483 to reduce weight.
  • the pressurized elastic body 487 may be disposed between the first plate 481 and the second plate 483.
  • the guide shaft 488 is fixed to the first plate 481 and is connected to the hole of the second plate 483, and may be configured to support movement of the second plate 483.
  • a beam bush 486 may be disposed in the hole of the second plate 483 so as to smoothly flow the guide shaft 488.
  • the guide shaft 488 may be made of metal. In this case, lubricant may be applied onto the beam bush 486 for smooth operation of the guide shaft 488.
  • a first embodiment of the structure of the pressure unit 480 of the present invention is posted.
  • a first protrusion 482 is formed on the first plate 481
  • a second protrusion 484 is formed on the second plate 483
  • the pressure elastic body 487 is formed in the first plate 481.
  • the first protrusion 482 and the second protrusion 484 may be interposed therebetween. In this case, only one pressurized elastic body 487 is disposed between the first plate 481 and the second plate 483.
  • the pressure elastic body 487 may be disposed on the guide shaft 488 between the first plate 481 and the second plate 483.
  • the first plate 481 and the second plate 483 may be configured in a triangular shape, and thus are disposed at each corner of the first plate 481 and the second plate 483.
  • the pressing elastic bodies 487 may be disposed on the three guide shafts 488, respectively.
  • the first and second plates 481 and 483 may be formed in a square shape in consideration of the weight balance.
  • the pressing elastic bodies 487 may be disposed on four guide shafts 488 disposed at each corner of the first plate 481 and the second plate 483. In this case, the pressing force can be further improved.
  • a stopper 489 may be disposed at an end portion of the guide shaft 488 so that the second plate is not separated from the guide shaft 488.
  • the first plate 481 and the second plate 483 may be formed in a polygonal plate shape, and the guide shaft 488 may include the first plate ( 481 and a plurality of corners of the second plate 483 may be disposed, and the center of gravity may be positioned on the center line P of the first direction V1 of the case 200.
  • the stack 410, the gas tank 300, and the auxiliary power supply 500 are generally disposed in a weight balance with respect to the center line P in the first direction V1.
  • the pressurizing unit 480 is also configured to be symmetrical on both sides of the center line P of the first direction V1, and is preferably arranged to achieve a weight balance of the fuel cell power pack 100.
  • the first plate 481 and the second plate 483 are formed to be symmetrical to both sides with respect to the center line P of the first direction V1 of the case 200, and the guide shaft 488 may be arranged in a symmetrical number.
  • the first plate 481 and the second plate 483 have a triangular plate shape
  • the guide shaft 488 has the first plate 481 and the second plate 483.
  • the shaft 488 is disposed at positions symmetrical to both sides with respect to the first direction centerline of the case 200.
  • the first plate 481 and the second plate 483 may have a disc shape, and the guide shaft 488 may be formed of the first plate 481.
  • a plurality of pieces may be disposed along the circumference of the second plate 483 at predetermined intervals, and the center of gravity may be positioned on the center line P of the first direction V1 of the case 200.
  • the centers of the first plate 481 and the second plate 483 are positioned on the center line P of the first direction V1 of the case 200, and the guide shaft 488 is located on the first line. It may be arranged in a number symmetrical to both sides with respect to the center line (P) in the direction (V1).
  • the pressurizing unit 480 of the present invention when the regulator valve 320 of the gas tank 300 is inserted into the gas supply unit 430, the gas supply unit 430 to the regulator valve 320 By pressing in the direction, the regulator valve 320 and the gas supply unit 430 may be tightly coupled.
  • the gas tank 300 is fixed to the gas tank mounting / detachable portion 210 by the fixing member 250.
  • the fixing member 250 When the user wants to replace the gas tank 300, when the fixing member 250 is released, the gas tank 300 is pushed outward from the gas tank mounting / detachable part 210 by the repulsive pressing force of the pressure elastic body 487. The user can easily and quickly replace the gas tank 300 by only a simple operation of releasing the fixing member 250.
  • the gas supply unit 430 is connected to the regulator valve 320 of the gas tank 300 inserted into the case 200, and the case ( It may be disposed on the front portion 201 of the case 200 to supply gas to the stack portion 410 disposed inside the 200.
  • the gas supply unit 430 may include a manifold block 450 and a gas supply pipe 440.
  • the manifold block 450 may be a portion connected to the regulator valve 320 of the gas tank 300, and the gas supply pipe 440 is between the manifold block 450 and the stack 410. It may be a portion that is connected to the arrangement.
  • the manifold block 450 may be located on the center line P of the first direction V1 of the case 200 to balance the weight. That is, the manifold block 450 may be formed in a symmetrical shape on both sides of the center line P in the first direction V1.
  • the gas tank 300 is disposed on the center line P of the first direction V1 of the case 200, and the gas tank 300 is disposed inside the case 200.
  • a plurality of stack portions 410 may be disposed at positions symmetric to both sides.
  • the gas supply pipe 440 is branched from the manifold block 450 by the number corresponding to the plurality of stacks 410, the plurality of gas supply pipe 440 is the center line (P1) in the first direction (V1) It may be arranged in a shape or position symmetrical to each other on both sides of the case 200 with respect to).
  • the gas supply pipe 440 may be connected to the upper side of the stack 410. This is to allow gas to be supplied from the upper side to the lower side of the stack 410 to be diffused downward and to cause an electrochemical reaction.
  • Condensate is generated as a by-product during the electrochemical reaction of oxygen and hydrogen, and the condensate drops downward due to gravity.
  • the gas supply pipe 440 is connected to the middle side or the bottom side of the stack 410, the fall of the condensed water may interfere with the diffusion of the gas, to prevent this.
  • the regulator valve 320 is connected to the outlet of the gas tank 300, and provides a gas to be supplied to the manifold flow path 456 of the manifold block 450 of the gas flowing out from the gas tank 300 Can be. Hydrogen gas may be discharged from the gas tank 300.
  • the regulator valve 320 may include a connector 325 and the opening and closing portion 330.
  • the connector 325 may be connected to the outlet of the gas tank 300.
  • the outlet of the gas tank 300 may be connected to the bolt / screw fastening structure, but is not necessarily limited thereto.
  • the connector 325 includes a pressure reducing unit 323, a gas filling unit 321, a pressure sensor 322, and a temperature response pressure discharge unit 324. Can be arranged.
  • the decompression unit 323 may be provided to adjust the degree of decompression of the gas flowing out of the outlet of the gas tank 300.
  • the gas filling unit 321 may be provided in the form of a valve to fill the gas in the gas tank 300.
  • the user can simply charge the gas by opening the lid 204 of the case 200 without disconnecting the gas tank 300, by connecting an external gas supply device and the gas filling unit 321 with a hose. have.
  • the pressure sensor 322 may be provided to measure the internal gas pressure of the gas tank 300.
  • the internal gas pressure of the gas tank 300 may vary according to an operating environment, and in some cases, the internal gas pressure of the gas tank 300 may reach a limit and may explode.
  • a drone operating in a hot area may be started when exposed to high temperature, in which case the internal gas pressure of the gas tank 300 may increase due to the high temperature.
  • the pressure sensor 322 measures the internal gas pressure of the gas tank 300 and transmits the information to the user.
  • the temperature reactive pressure discharge part 324 may be provided to automatically discharge the internal gas pressure of the gas tank 300 in response to the internal gas temperature of the gas tank 300.
  • the gas tank 300 is exposed to a high temperature environment and the internal gas pressure of the gas tank 300 rises as the internal gas temperature of the gas tank 300 rises, the gas is automatically discharged. It is possible to prevent the explosion of the gas tank 300 in advance.
  • one end of the opening and closing part 330 is connected to the connector part 325, and the other end is inserted into the insertion space 452 of the manifold block 450 and the flow of gas. It may be provided to open and close.
  • the opening and closing portion 330 may include a valve body 334, the valve elastic body 337 and the opening and closing bar 336, the inner flow passage 332 and the dispersion flow passage 333 is formed.
  • the valve body 334 may be substantially cylindrical in shape, and may be inserted into an insertion space 452 formed in the manifold block 450.
  • One side of the valve body 334 may be connected to the connector portion 325, the other side may be formed with a valve protrusion 335 protruding toward the manifold block 450 in the center portion.
  • the valve protrusion 335 may have a cylindrical shape.
  • the diameter of the valve protrusion 335 may be smaller than the diameter of the valve body 334 connected to the connector 325.
  • the internal passage 332 is connected to the connector portion 325 and may be disposed in the valve body 334.
  • the internal flow path 332 may be a flow path through which hydrogen gas reduced in pressure by the set pressure of the decompression unit 323 in the connector unit 325 flows.
  • the inner passage 332 includes an opening and closing space 331 extending radially from the other side of the valve body 334.
  • the dispersion passage 333 may be formed in communication with the internal passage 332 in the valve protrusion 335 of the valve body 334.
  • the dispersion flow path 333 may be formed in the radial direction inside the valve protrusion 335 so that the gas may be dispersed in the radial direction.
  • a plurality of dispersion passages 333 may be formed along the circumferential direction of the valve protrusion 335.
  • Hydrogen gas flowing out of the dispersion passage 333 is introduced into the manifold passage 456 of the manifold block 450, which will be described later, and is supplied to each stack unit 410 through the gas supply pipe 440. .
  • the valve elastic body 337 may be disposed in the open / close space 331.
  • the valve elastic body 337 applied to the present invention may be a coil spring or a leaf spring.
  • the valve elastic body 337 provides an elastic force to the opening / closing bar 336 so that the opening / closing bar 336 is pressed toward the pressing part 460 of the manifold block 450.
  • One end 336a of the opening / closing bar 336 is supported by the valve elastic body 337 and may be disposed in the opening / closing space 331 of the inner passage 332.
  • the other end 336b of the opening / closing bar 336 is disposed in the through hole 335a formed in the valve protrusion 335, and is disposed in the form of protruding toward the pressing part 460 of the manifold block 450. Can be.
  • the manifold block 450 may be connected between the regulator valve 320 and the stack unit 410, and may be provided to flow gas discharged through the regulator valve 320 into the stack unit 410.
  • the manifold block 450 may include a body part 451, a link part 455, and a pressing part 460.
  • the body 451 may have a generally cylindrical shape, and an insertion space 452 may be formed at one side thereof in a shape corresponding to the regulator valve 320.
  • the insertion space 452 may include a valve protrusion accommodating hole 453 in which the valve protrusion 335 of the valve body 334 is accommodated in the direction of the center line of the insertion space 452.
  • the valve body 334 and the valve protrusion 335 may be inserted into the insertion space 452 and the valve protrusion receiving hole 453.
  • the insertion space 452 and the valve protrusion receiving hole 453 may be formed in a shape corresponding thereto to accommodate the valve body 334 and the valve protrusion 335, respectively.
  • the link part 455 is disposed at the other side of the body part 451.
  • the link part 455 may be provided with a manifold flow path 456 formed so that the gas discharged from the regulator valve 320 inserted into the insertion space 452 flows into the stack part 410.
  • a plurality of manifold flow passages 456 may be formed on the link portion 455 corresponding to the number of stack portions 410 to supply hydrogen gas.
  • the pressing part 460 may be disposed in contact with the other end 336b of the opening / closing bar 336 in the body 451 so that the opening / closing bar 336 may be pressed.
  • the pressing part 460 may be implemented in a groove shape in which a part of the other end 336b of the opening and closing bar 336 is accommodated.
  • the pressing portion 460 may have a protrusion shape.
  • the other end portion 336b of the opening and closing bar 336 is positioned inside the through hole 335a, and the valve protrusion 335 is completely inserted into the insertion space 452 of the body portion 451.
  • the protrusion shape of the pressing portion 460 is inserted into the through hole 335a and pushes the other end portion 336b of the opening / closing bar 336.
  • one end 336a of the opening / closing bar 336 is separated from the contact surface of the opening / closing space 331 to open the inner passage 332 and the dispersion passage 333.
  • the opening and closing portion 330 which is a part of the regulator valve 320 is described and illustrated as being inserted into the manifold block 450 (exactly, the insertion space 452), but in another embodiment of the present invention, Accordingly, the manifold block 450 may be changed to be inserted into the regulator valve 320.
  • the first seal 471 disposed on the outer surface of the valve body 334 to prevent leakage of gas between the inner surface of the insertion space 452 and the outer surface of the valve body 334. ) May be included.
  • a second sealing disposed on an outer surface of the valve protrusion 335 so that gas leakage between the valve engagement portion 335 and the insertion engagement surface between the valve protrusion receiving hole 453 of the manifold block 450 is blocked. 473 may be further included.
  • the first and second seals 471 and 473 may be O-rings, but are not necessarily limited thereto.
  • At least one of the first and second seals 471 and 473 may be formed of a material having an elastic force.
  • the first and second seals may be made of a material such as rubber or soft plastic.
  • first sealing 471 is compressed between the outer circumferential surface of the valve body 334 and the inner circumferential surface of the insertion space 452 of the manifold block 450 to the valve body 334 and the manifold block ( 450) is press-bonded.
  • the second sealing 473 is compressed between the outer peripheral surface of the valve protrusion 335 of the valve body 334 and the inner peripheral surface of the valve protrusion receiving hole 453 of the manifold block 450 to seal the valve body 334.
  • the valve projection 335 and the manifold block 450 of the compression bonding are compressed between the outer peripheral surface of the valve protrusion 335 of the valve body 334 and the inner peripheral surface of the valve protrusion receiving hole 453 of the manifold block 450 to seal the valve body 334.
  • valve body 334 and the manifold block 450 may contribute to maintaining the coupling by applying a pressing force along with an improvement in sealing force to prevent gas leakage by the first and second seals 471 and 473. .
  • a flow control valve 490 disposed in the manifold channel 456 to control the flow rate of the gas discharged from the regulator valve 320 to the manifold channel 456. ) May be included.
  • the flow control valve 490 may be an electronic control valve such as a solenoid valve, and the user may control the flow rate of the gas supplied to the stack 410 through power control on the manifold flow passage 456. 490 can be adjusted.
  • a central hole 457 into which the valve protrusion 335 is inserted may be formed at the central portion of the manifold block 450.
  • the gas ejected from the through hole 335a of the valve protrusion 335 passes through the plurality of distribution passages 333 disposed along the circumference of the valve protrusion 335, and is ejected to the central hole 457.
  • Gas introduced into the central hole 457 is dispersed through the branch hole 458 to the manifold flow path 456, respectively.
  • the flow control valve 490 may include a valve housing 491, a stator 492, a rotor 493, and an opening / closing piece 494.
  • the valve housing 491 may be connected to the lower side of the manifold block 450.
  • a stator 492 may be disposed inside the valve housing 491, and a rotor may be disposed at the center of the stator 492.
  • 493 may be disposed.
  • An opening and closing piece 494 may be mounted at an end of the rotor 493.
  • the flow control valve 490 may be a valve of a normal close type which is normally closed at all times. In this case, the valve is opened when the user applies power.
  • the opening and closing piece 494 is basically inserted into the branch hole 458.
  • the rotor 493 moves in the opposite direction to the branch hole 458 by an electromagnetic reaction. Accordingly, the opening and closing piece 494 mounted at the end of the rotor 493 is discharged from the branch hole 458 to control the opening and closing of the branch hole 458.
  • the rotor 493 moves in the direction of the branch hole 458 again, the opening and closing piece 494 is inserted into the branch hole to block the flow of hydrogen gas. do.
  • the flow control valve 490 may be configured to automatically close when a failure or a dangerous situation of the fuel cell power pack occurs.
  • the flow control valve 490 is described as being limited to the electronic control valve, but is not necessarily limited thereto.
  • the flow control valve 490 together with the opening and closing bar 336, has a meaning as an auxiliary means for controlling the flow of hydrogen gas.
  • the flow control valve 490 opens and closes the branch hole 458.
  • the opening and closing of the gas can be controlled auxiliaryly.
  • the primary opening / closing structure by the opening / closing bar 336 and the pressing part 460 and the two openings by the flow control valve 490 and the branch hole 458 are as described above.
  • the differential opening and closing structure enables more stable control of the gas supply.
  • gas supply structure of the present invention is as described above, the following will be described with reference to Figures 25 to 27 the opening and closing method by the structure.
  • the regulator valve 320 coupled to the gas tank 300 is the manifold block of the gas supply unit 430 It is fitted to the 450.
  • the other end 336b of the opening / closing bar 336 is formed of the pressing part 460. It is positioned against the inner end.
  • the other end 336b of the opening / closing bar 336 is an inner end of the pressing part 460. Pressed by, the one end 336a of the opening and closing bar 336 is separated from the contact surface 331a of the opening and closing space 331, the gas flow path is opened.
  • the gas discharged from the gas tank 300 is first decompressed by a predetermined pressure by the decompression unit 323 of the regulator valve 320 and then the internal flow path ( 332).
  • the gas Since the inner passage 332 and the dispersion passage 333 communicate with each other by the movement of the opening and closing bar 336, as shown in the enlarged view of FIG. 26, the gas is opened and closed in the inner passage 332. It is discharged through the distribution passage 333 via 331, and flows to the manifold passage (456).
  • the gas is supplied to each stack unit 410 by the gas supply pipe 440 connected to the manifold passage 456.
  • first and second seals 471 and 473 are disposed between an outer surface of the valve body 334, an outer surface of the valve protrusion 335, and an inner surface of the insertion space 452, thereby preventing external leakage of hydrogen gas. can do.
  • the operator may remove the valve body 334 of the regulator valve from the insertion space 452 of the manifold block 450.
  • the one end 336a of the opening / closing bar 336 is opened or closed. Is in close contact with the contact surface 331a.
  • the user can shut off the gas supply by closing the branch hole 458 with the flow control valve 490 by turning off the power. In this case, the user does not need to remove the gas tank 300 from the case 200.
  • the present invention relates to a gas supply structure of a fuel cell power pack applied to a drone and has industrial applicability.

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Abstract

La présente invention concerne une structure d'alimentation en gaz d'un bloc d'alimentation de pile à combustible, qui peut comprendre: une unité d'alimentation en gaz disposée à l'intérieur d'une enceinte et reliée à une soupape de régulation couplée à un réservoir de gaz inséré à l'intérieur de l'enceinte de façon à fournir un gaz combustible à une partie d'empilement disposée à l'intérieur de l'enceinte; et une unité de mise sous pression ayant une partie latérale fixée à l'intérieur de l'enceinte et l'autre partie latérale reliée à l'unité d'alimentation en gaz, et poussant l'unité d'alimentation en gaz dans une direction orientée vers la soupape de régulation. La présente invention peut améliorer la praticité pour l'utilisateur grâce à la structure d'alimentation en gaz facile à monter ou à démonter.
PCT/KR2019/011020 2018-08-31 2019-08-28 Structure d'alimentation en gaz d'un bloc d'alimentation de pile à combustible WO2020045994A1 (fr)

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KR1020180103815A KR102130213B1 (ko) 2018-08-31 2018-08-31 연료전지 파워팩의 가스 공급 구조

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KR102550918B1 (ko) 2020-12-16 2023-07-05 주식회사 호그린에어 수소탱크 일체형 연료전지 파워팩 및 이를 구비하는 드론
KR102494161B1 (ko) 2021-03-05 2023-02-01 주식회사 호그린에어 에너지 하베스팅 장치를 구비한 드론

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KR200437428Y1 (ko) * 2006-11-02 2007-12-03 주식회사 웰탑테크노스 연료압력 레귤레이터의 압력조정기용 가압 및 받침부 구조
KR20160076400A (ko) * 2014-12-22 2016-06-30 (주)모토닉 고압 레귤레이터
KR101806261B1 (ko) * 2016-10-17 2017-12-07 하이리움산업(주) 연료탱크 장착부를 포함하는 멀티콥터
WO2018046990A1 (fr) * 2016-09-07 2018-03-15 Intelligent Energy Limited Stations au sol et procédés pour véhicules aériens sans pilote alimentés par piles à combustible à membrane échangeuse de protons
KR101877293B1 (ko) * 2016-10-10 2018-08-09 (주)모토닉 고압 레귤레이터

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KR101866191B1 (ko) 2016-12-20 2018-06-11 서울과학기술대학교 산학협력단 휴대용 접이식 드론

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KR200437428Y1 (ko) * 2006-11-02 2007-12-03 주식회사 웰탑테크노스 연료압력 레귤레이터의 압력조정기용 가압 및 받침부 구조
KR20160076400A (ko) * 2014-12-22 2016-06-30 (주)모토닉 고압 레귤레이터
WO2018046990A1 (fr) * 2016-09-07 2018-03-15 Intelligent Energy Limited Stations au sol et procédés pour véhicules aériens sans pilote alimentés par piles à combustible à membrane échangeuse de protons
KR101877293B1 (ko) * 2016-10-10 2018-08-09 (주)모토닉 고압 레귤레이터
KR101806261B1 (ko) * 2016-10-17 2017-12-07 하이리움산업(주) 연료탱크 장착부를 포함하는 멀티콥터

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