CN210156483U - Open modular structure for fuel cell power pack - Google Patents
Open modular structure for fuel cell power pack Download PDFInfo
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- CN210156483U CN210156483U CN201921252229.9U CN201921252229U CN210156483U CN 210156483 U CN210156483 U CN 210156483U CN 201921252229 U CN201921252229 U CN 201921252229U CN 210156483 U CN210156483 U CN 210156483U
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- main body
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/2475—Enclosures, casings or containers of fuel cell stacks
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- 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
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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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
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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
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
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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
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
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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
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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
- H01M8/24—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
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fuel Cell (AREA)
Abstract
The utility model relates to an open modular structure of fuel cell power pack, it includes: a main body frame; a fuel tank housing section disposed in a central portion of the main body frame and configured to house a fuel tank; a stack housing unit disposed at both side portions of the main body frame and configured to house a stack of fuel cells; a control panel disposed below the front portion of the main body frame; a valve dismounting part which is arranged at the front part of the main body frame and is connected with a regulating valve of a fuel tank; and a manifold portion disposed at a front surface portion of the main body frame and connecting the valve mounting/dismounting portion and the stack. According to the utility model discloses, can realize the lightweight, improve the fuel efficiency when installing and using unmanned aerial vehicle through improving visuality and stability, increase flight time and payload value, can make maintenance become simple to, when taking place emergency such as hydrogen leakage, can make hydrogen diffuse to the air, rather than the gathering, therefore, can expect the effect of the incident of prevention explosion etc. in advance.
Description
Technical Field
The present invention relates to an open modular structure of a fuel cell power supply pack, and more particularly, to an open modular structure of a fuel cell power supply pack that is open to reduce the weight of the fuel cell power supply pack, improves the fuel efficiency by improving the visibility, increases the flight time, and simplifies the maintenance.
Background
Unmanned aerial vehicles (drones) are a generic term for unmanned aerial vehicles. Unmanned aerial vehicles, which are mostly operated by radio waves, were used at first in the military field, i.e. for the interception training of military aircraft, antiaircraft guns or missiles.
With the development of radio technology, the radio equipment is not only used for interception training, but also used for destruction of target facilities by being mounted on military reconnaissance planes and various weapons.
Recently, the degree of application of the unmanned aerial vehicle is increasing. Be used in the leisure field through developing small-size unmanned aerial vehicle, unmanned aerial vehicle's popular trend also enlarges gradually, has had unmanned aerial vehicle operation competition match now. In the express delivery industry, a delivery mechanism for delivering ordered commodities by an unmanned aerial vehicle is planned and implemented.
Following this trend, major enterprises in countries around the world view the unmanned aerial vehicle-related industry as a sunward industry to actively invest in the investment field and technology development.
In the aspect of the use of the unmanned aerial vehicle, one of the most important points is whether the unmanned aerial vehicle can be used for a long time. Currently, most unmanned aerial vehicles on the market do not have long flight times. This is because a drone that needs to drive a plurality of propellers to fly consumes much electric power in terms of driving of the propellers.
However, if a large-capacity battery or a plurality of batteries having a large volume are mounted on the drone in order to increase the flight time, the size and weight of the drone increase due to the size and weight of the batteries, which in turn leads to an inefficient result. In particular, for the unmanned aerial vehicle in terms of distribution, a payload (payload) value is also taken into consideration, and reduction in size and weight of the unmanned aerial vehicle itself becomes one of very important elements in terms of use of the unmanned aerial vehicle, which has limitations in that a general battery in the market is increased for long-term use.
Further, if a large-capacity battery having a large volume or a large number of batteries are blindly mounted on the unmanned aerial vehicle, the power of the unmanned aerial vehicle may be lowered.
Recently, in order to solve the problems mentioned above, a hydrogen-utilizing fuel cell power pack that can be attached to and detached from an unmanned aerial vehicle is being studied. However, when the fuel cell power pack is mounted on the unmanned aerial vehicle, the weight of the fuel cell power pack needs to be reduced in order to reduce the total weight.
Documents of the prior art
Patent document
Korean patent No.: KR 10-1866191B 1
SUMMERY OF THE UTILITY MODEL
The present invention has been made in order to solve the above-described problems occurring in the related art, and an object of the present invention is to provide an open modular structure of a fuel cell power supply pack, in which a lightweight is realized by a modular structure forming the fuel cell power supply pack in an open manner, and fuel efficiency is improved by improving visibility, and thus, the maintenance can be simplified by increasing the flight time.
The present invention for achieving the above objects relates to an open modular structure of a fuel cell power pack, which may include: a main body frame; a fuel tank housing section disposed in a central portion of the main body frame and configured to house a fuel tank; a stack housing unit disposed at both side portions of the main body frame and configured to house a stack of fuel cells; a control panel disposed below the front portion of the main body frame; a valve dismounting part which is arranged at the front part of the main body frame and is connected with a regulating valve of a fuel tank; and a manifold portion disposed at a front surface portion of the main body frame and connecting the valve mounting/dismounting portion and the stack.
In an embodiment of the present invention, the fuel tank accommodating portion may include: a first support block, which is configured at the rear part of the main body frame, and the upper part of the first support block is in a curve shape to support the lower end part of a fuel tank; and a second supporting block, which is configured at the lower end part of the main body frame, and the upper surface part of which is in a curve shape so as to support the lower end part of the fuel tank.
In addition, in an embodiment of the present invention, the fuel tank may further include an auxiliary beam disposed at both sides of the lower end portion of the main body frame with reference to the second support block, and having a curved upper surface portion for supporting a lower end portion of the fuel tank.
In an embodiment of the present invention, the fuel tank accommodating portion may include: a fixing rod, which is curved, is arranged at the upper end of the main body frame and is used for fixing the upper end part of the fuel tank; and a fixing pin for fastening the fixing rod to the upper end of the main body frame.
In an embodiment of the present invention, the cell stack portion may include: a stack holder disposed at both side portions of the main body frame and configured to receive a stack; a stack fixing beam combined with the stack bracket in a multi-layer structure for fixing the stack; and a discharge port connected to a lower end of the stack tray, for discharging water discharged from the stack to the outside.
In addition, in an embodiment of the present invention, the control panel may further include a plurality of air holes formed at a lower side of a front surface of the main body frame so that air flows toward a lower side of the control panel.
Further, in an embodiment of the present invention, the valve detaching portion may include: a valve connecting pipe disposed at a front surface of the main body frame and connected to the manifold portion; and a valve guide pipe connected to the valve coupling pipe and inserted into the regulating valve of the fuel tank.
In an embodiment of the present invention, the valve mounting and dismounting portion may further include a mounting and dismounting rod for fastening the flange of the valve guide pipe and the flange of the valve coupling pipe.
Further, in an embodiment of the present invention, the manifold portion may include: a manifold block disposed on a front surface of the main body frame; a pressing groove formed on the manifold block; a center hole formed in the manifold block along the periphery of the pressing groove; a manifold channel connected to the center hole and branched into a plurality of channels; and a connection pipe for connecting the manifold flow path and the stack.
Further, in an embodiment of the present invention, the manifold portion may include: a branch hole formed between the center hole and the manifold flow path; and a check valve disposed in the manifold block and configured to drive an opening/closing lever for opening/closing the branch hole.
In addition, in an embodiment of the present invention, the fuel cell system may further include a battery housing portion disposed on one side of the front surface of the main body frame and configured to house a battery to be supplied with power in parallel with the fuel cell.
In addition, in an embodiment of the present invention, the electric power generating apparatus may further include a fan housing portion that is disposed in connection with the stack housing portion at both ends of the main body frame so that air forcibly flows into the stack housing portion, and the fan housing portion may include: the pipeline is connected with the electric pile bracket, and the air passing through the electric pile is collected in the pipeline; and a fan unit disposed inside the fan block connected to the duct and configured to discharge the air collected in the duct to the outside.
In an embodiment of the present invention, the fluid discharge device may further include a water discharge unit disposed at a lower end of the main body frame and discharging a fluid, and the water discharge unit may include: a drain groove formed in a recessed shape at a lower portion of the main body frame, the fluid being collected in the drain groove; and a drain hole formed in the drain groove, for discharging fluid to the outside.
In an embodiment of the present invention, the drain part may further include a height difference part formed at a lower end of the main body frame to have a height difference so that the fluid flows to the drain groove at the lower end of the main body frame.
The utility model relates to a with fuel cell driven power pack, compare with the ordinary battery of the aircraft of using at unmanned aerial vehicle etc. on the market, power for weight is outstanding, therefore can use unmanned aerial vehicle for a long time.
Further, the present invention forms the module structure of the fuel cell power pack in an open manner, and realizes a light weight compared with the conventional sealed cover structure of a general shape. This can reduce whole weight when installing unmanned aerial vehicle, can improve unmanned aerial vehicle's flight time, payload value etc.. Further, by removing the handle of the fuel tank containing hydrogen gas, the weight of the fuel tank itself is reduced, and the effect of reducing the weight can be similarly achieved.
Furthermore, the present invention has an open module structure to provide good visibility inside, so that replacement or maintenance of parts or batteries can be simplified. This enables a plurality of components of the fuel cell power pack to be naturally air-cooled during the operation of the unmanned aerial vehicle, so that the cooling efficiency can be improved as a whole.
Furthermore, the present invention provides a fuel cell power supply pack using hydrogen as a fuel, wherein even if hydrogen leaks due to aging, sudden accidents, etc. during use, the hydrogen is directly diffused into the air due to the open type module structure rather than the sealed type module structure, so that hydrogen is not accumulated in the fuel cell power supply pack, thereby fundamentally preventing safety accidents such as explosion, etc. and being advantageous for safety.
And, according to the utility model discloses, at the central side configuration fuel jar of module, in the inboard of module, with a plurality of galvanic pile configurations in the symmetry position that forms in the both sides of fuel jar, when installing unmanned aerial vehicle, can start and use unmanned aerial vehicle steadily.
Further, according to the present invention, by mounting the manual valve for controlling the opening and closing of the manifold portion, the reduction in reliability, the increase in cost, and the increase in weight due to the mounting of the automatic control valve can be minimized. The user can adjust the hydrogen supply time at will by controlling the manual valve, and the problem of supplying hydrogen at unnecessary time due to error when carrying the automatic control valve can be prevented. In case of emergency, the user can directly and physically block the supply of hydrogen, thereby further avoiding control errors and safety accidents.
Furthermore, the use of the manual valve reduces the overall weight, which can extend the flight time of the drone and increase the payload value, reducing the cost to reduce the cost of producing the fuel cell power pack.
Further, according to the present invention, an electronically controlled flow control valve such as a solenoid valve (solenoid valve) may be further installed at the manifold portion, so that the flow rate of hydrogen supplied to the stack may be controlled, and thus, a user may turn on or off (on/off) the fuel cell at a desired time, and may stop the operation of the fuel cell in case of an emergency.
Further, according to the present invention, the user can open and close the regulating valve and communicate the gas flow path only by the operation of detaching the regulating valve connected to the fuel tank from the manifold portion, and this structure improves the convenience of operation.
Further, according to the present invention, the drain water and the condensed water generated in the air drain process, the hydrogen purge process, the control valve, the hydrogen container, and the like may be collected at one place by the concave-shaped drain structure formed at a portion of the lower end of the module based on the characteristics of the fuel cell and then discharged. This can make the inboard of module keep the state of comparison cleanness, can prevent that the controlling means such as circuit substrate from exposing at rainwater, comdenstion water etc. can make moisture mainly to installing the unmanned aerial vehicle side inflow of fuel cell power pack lower part, can prevent that unmanned aerial vehicle from breaking down. Of course, with the open module structure, the control device, the protective tape, the connector, and the like can be insulated or waterproofed.
And, according to the utility model discloses, dispose the battery of lithium ion battery etc to supply power with the parallelly connected mode of fuel cell, through this kind of control, can supply power to unmanned aerial vehicle steadily.
And, according to the utility model discloses, dispose the control panel in the front lower extreme of module to dispose a plurality of air holes with the adjacent mode of control panel, can make the control panel obtain the air cooling through the air nature at unmanned aerial vehicle flight in-process, thereby improved the cooling effect.
Further, according to the present invention, the duct connected to seal one side of the stack is provided, and the fan unit is disposed in the duct, so that air is discharged through the fan and flows into the stack from the other side of the stack, thereby allowing air to smoothly flow into the stack.
Drawings
Fig. 1 is a side perspective view showing an open module structure of a fuel cell power pack according to the present invention.
Fig. 2 is another side perspective view showing an open module structure of the fuel cell power pack according to the present invention.
Fig. 3 is a plan view showing an open module structure of a fuel cell power pack according to the present invention.
Fig. 4 is a bottom view showing an open module structure of a fuel cell power pack according to the present invention.
Fig. 5 is a back view showing an open module structure of a fuel cell power pack according to the present invention.
Fig. 6 is a front view showing an open module structure of a fuel cell power pack according to the present invention.
Fig. 7 is a side view showing an open module structure of a fuel cell power pack according to the present invention.
Fig. 8 is a perspective view showing a state in which a fuel tank is attached to an open module structure of a fuel cell power pack according to the present invention.
Fig. 9 is a plan view showing a state where a fuel tank is attached to an open module structure of a fuel cell power pack according to the present invention.
Fig. 10 is a diagram showing an opening/closing structure of the manifold portion and the control valve according to the present invention.
Fig. 11 is a diagram showing the structure of the check valve and the branch hole of the manifold portion according to the present invention.
Description of the symbols
100: open modular structure for fuel cell power pack
200: the main body frame 210: air hole
220: control panel 231: fixing hole
300: fuel tank housing section 310: first supporting block
320: second support block 330: fixing rod
340: fixing pin 350: auxiliary beam
360: fuel tank 370: regulating valve
371: the valve main body 372: internal flow path
373: valve elastomer 374: opening and closing rod
375: opening and closing space 376: through hole
377: dispersion flow path
400: the cell stack housing portion 410: electric pile bracket
420: the stack fixing beam 430: discharge port
500: manifold portion 510: valve mounting/dismounting part
511: valve guide pipe 513: valve connecting pipe
515: disassembling and assembling the rod 520: connecting pipe
531: pressing groove 532: center hole
533: manifold flow path 534: branch hole
535: check valve 535 a: outer cover
535 b: stator 535 c: rotor
535 d: open block 540: manifold block
600: the drain portion 610: drainage channel
620: drain hole 630: height difference part
700: battery housing section 710: battery with a battery cell
800: fan housing section 810: fan unit
820: the fan block 830: pipeline
Detailed Description
Hereinafter, a preferred embodiment of an open module structure of a fuel cell power pack according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a side perspective view showing the open modular structure 100 of the fuel cell power supply pack of the present invention, fig. 2 is a perspective view showing the open modular structure 100 of the fuel cell power supply pack of the present invention, fig. 3 is a plan view showing the open modular structure 100 of the fuel cell power supply pack of the present invention, fig. 4 is a bottom view showing the open modular structure 100 of the fuel cell power supply pack of the present invention, fig. 5 is a back view showing the open modular structure 100 of the fuel cell power supply pack of the present invention, fig. 6 is a front view showing the open modular structure 100 of the fuel cell power supply pack of the present invention, and fig. 7 is a side view showing the open modular structure 100 of the fuel cell power supply pack of the present invention.
Fig. 8 is a perspective view showing a state where a fuel tank 360 is attached to the open module structure 100 of the fuel cell power pack of the present invention, and fig. 9 is a plan view showing a state where the fuel tank 360 is attached to the open module structure 100 of the fuel cell power pack of the present invention.
Fig. 10 is a view showing an opening/closing structure of the manifold portion 500 and the control valve according to the present invention, and fig. 11 is a view showing a structure of the check valve 535 and the branch hole 534 of the manifold portion 500 according to the present invention.
First, referring to fig. 1 to 7, the open type module structure 100 of the fuel cell power pack according to the present invention may include a main body frame 200, a fuel tank accommodating portion 300, a stack accommodating portion 400, a control panel 220, a valve detaching portion 510, a manifold portion 500, a drain portion 600, a battery accommodating portion 700, and a fan accommodating portion 800.
The main body frame 200 is formed as an integral frame, and may be formed with a cut-away portion in order to reduce weight. In this case, if the metal material is used, a material such as titanium or aluminum is used for weight reduction.
The drain part 600 is disposed at a lower end of the main body frame 200 and configured to drain a fluid such as rainwater or condensed water. The drain part 600 as described above may include a drain groove 610, a drain hole 620, and a height difference part 630.
The drain groove 610 may be formed in a concave shape at a lower portion of the main body frame 200, and may be a portion where the fluid accumulated at the lower portion of the main body frame 200 is collected. The drain hole 620 may be formed in the drain groove 610 and may be a portion for discharging fluid to the outside.
The height difference part 630 may form a height difference at the lower end of the main body frame 200 so that the fluid flows to the drain groove 610 at the lower end of the main body frame 200.
During the operation of the drone, rainwater, condensed water, etc. may be accumulated at the lower end of the main body frame 200, and such fluid may be collected in the drain groove 610 after falling to the level difference portion 630, and then discharged to the outside through the drain hole 620. Thus, the inside of the main body frame 200 can be maintained in a relatively clean state, and the operation error of the apparatus can be minimized.
Next, the fuel tank housing portion 300 may be disposed at a central portion of the main body frame 200, and may be a portion that houses the fuel tank 360. To this end, the fuel tank receiving part 300 may include a first support block 310, a second support block 320, an auxiliary beam 350, a fixing rod 330, and a fixing pin 340.
First, the first support block 310 is disposed at the rear surface of the main body frame 200, and has a curved upper surface to support the lower end of the fuel tank 360. The second support block 320 is disposed at the lower end of the main body frame 200, and has a curved upper surface portion to support the lower end of the fuel tank 360.
In this case, in the lower end portion of the body frame 200, the auxiliary beam 350 may be disposed in a plurality on both sides with respect to the second support block 320, and may have a curved upper surface to support the lower end portion of the fuel tank 360. In the present invention, a pair of the auxiliary beams 350 are respectively disposed on both sides of the second supporting block 320, and four auxiliary beams 350 are disposed.
The lower end of the fuel tank 360 is supported by the first support block 310, the second support block 320, and the auxiliary beam 350, and can be stably mounted on the center portion of the main body frame 200.
Next, referring to fig. 1 and 8, after the fuel tank 360 is disposed in the fuel tank accommodating portion 300, in order to fix the upper end of the fuel tank 360, a user attaches the fixing lever 330 to the upper end of the main body frame 200, and fastens the fixing pin 340 to the fixing hole 231 formed at the upper end of the main body frame 200, thereby fixing the fixing lever 330. The fixing lever 330 is fastened to the upper end of the main body frame 200 by the fixing pin 340 in a state of pressing the upper end of the fuel tank 360, and can stably fix the fuel tank 360 and be disposed at the center of the main body frame 200.
Next, the stack housing part 400 may be disposed at both sides of the main body frame 200, and may be a part that houses a stack of a fuel cell. To this end, the stack accommodating portion 400 may include a stack bracket 410, a stack fixing beam 420, and a discharge port 430.
First, the stack holders 410 may be disposed at both sides of the main body frame 200, and may be portions for receiving the stacks. In the present invention, the stack holder 410 has a rectangular parallelepiped shape, but can be deformed according to various shapes of the stack.
The stack fixing beam 420 is combined with the stack bracket 410 in a multi-layer structure to fix the stack inserted into the stack bracket 410. When performing replacement or maintenance of the stack, a user can easily perform work by removing only the stack fixing beams 420 from the holes formed in the stack bracket 410 in a multi-layered structure.
The drain 430 is connected to a lower end of the stack bracket 410, and may drain water discharged from the stack to the outside. In general, since water generated after electrochemical reaction in the stack flows downward by gravity, the discharge port 430 is connected to the lower end of the stack holder 410.
Next, the fan housing part 800 may be connected to the stack housing part 400 at both ends of the main frame 200, so that air forcibly flows into the stack housing part 400. To this end, the fan housing 800 may include a duct 830, a fan block 820, and a fan unit 810.
First, the duct 830 may be a portion to collect air passing through the stack, and is connected to the stack bracket 410. The fan block 820 is connected to the duct 830, and the fan unit 810 may be disposed inside the fan block 820.
The fan unit 810 discharges the air collected in the duct 830 to the outside.
The fan unit 810 discharges the air inside the stack to the outside at the initial start-up, and thus forcibly introduces the external air into the stack. That is, first, the internal air of the stack is removed to form a low-pressure or negative-pressure state relatively lower than the atmospheric pressure inside the stack. Accordingly, air naturally flows into the cell stack through one surface of the cell stack disposed on the opposite side of the duct 830 according to the air pressure difference. Naturally, although the air may be flowed in naturally, the air is forcibly flowed in order to improve the reactivity of the stack.
Next, the control panel 220 may be disposed under the front surface of the main body frame 200. The control panel 220 may perform the electrical/mechanical operation control of the various fuel cell power packs, such as the fan unit 810, the battery 700, the check valve 535, etc., or may perform the functions of a wireless controller.
In this case, since the main body frame 200 forms an open structure, the upper surface of the control panel 220 may be naturally cooled by an air flow generated during the operation of the drone. However, since the lower surface of the control panel 220 is blocked by the front surface of the main body frame 200, air cannot smoothly flow, which may reduce air cooling efficiency.
For this purpose, a plurality of air holes 210 may be disposed under the front surface of the main body frame 200. The plurality of air holes 210 are disposed to face the lower surface of the control panel 220, and air flows into the main body frame 200 through the air holes 210 during the operation of the drone, thereby cooling the lower surface of the control panel 220.
With the above-described configuration, both the upper surface portion and the lower surface portion of the control board 220 can be effectively cooled down.
Next, the valve attaching/detaching part 510 may be a part that is disposed at the front surface of the main body frame 200 and connected to the control valve 370 of the fuel tank 360. To this end, the valve attaching and detaching part 510 may include a valve coupling pipe 513, a valve guide pipe 511, and an attaching and detaching lever 515.
The valve coupling pipe 513 may be disposed at a front surface of the main body frame 200 and may be connected to the manifold portion 500. The valve guide pipe 511 may be a part to which the control valve 370 of the fuel tank 360 is inserted, connected to the valve coupling pipe 513. A protrusion 511b for supporting the outer periphery of the regulating valve 370 of the fuel tank 360 may be disposed inside the valve guide pipe 511.
The detachable lever 515 may fasten the flange 511a of the valve guide pipe 511 and the flange 513a of the valve coupling pipe 513. When a user grips the detachable lever 515 disposed in a pair on both sides of the valve coupling portion to compress the detachable lever inward, the flange 511a of the valve guide pipe 511 and the flange 513a of the valve coupling pipe 513 are separated and separated from each other, and when the user grips the detachable lever 515 to expand the detachable lever, the flange 511a of the valve guide pipe 511 and the flange 513a of the valve coupling pipe 513 are gripped and fixed.
Next, the manifold portion 500 is disposed at the front surface of the main body frame 200, and may be formed to connect the valve mounting and dismounting portion 510 and the cell stack. Referring to fig. 3, 10 and 11, the manifold part 500 may include a manifold block 540, a pressing groove 531, a central hole 532, a manifold flow path 533, a connection pipe 520, a branch hole 534 and a check valve 535.
First, before explaining the manifold portion 500, the structure of the regulator valve 370 to which the fuel tank 360 of the present invention is applied is examined. The utility model discloses a manifold portion 500 is special to being suitable for the utility model discloses a structure of fuel jar 360's governing valve 370.
In the regulator valve 370 of the fuel tank 360, a valve main body 371 is inserted into the valve guide pipe 511 and the valve connecting pipe 513, an internal flow path 372 for flowing hydrogen is formed inside the valve main body 371, and the internal flow path 372 is connected to the open/close space 375. An opening/closing spring 373 is disposed in the opening/closing space 375, and the opening/closing spring 373 contacts the opening/closing lever 374 and applies an elastic force to the opening/closing lever 374 to close the through hole 376 by the opening/closing lever 374.
If the opening/closing lever 374 is inserted into and pressed by the pressing groove 531, the opening/closing lever 374 is opened, and the hydrogen gas passes through the through hole 376 and flows through the dispersion flow path 377 to the manifold flow path 533.
The manifold block 540 of the present invention may be disposed on the front surface of the main body frame 200. The manifold block 540 is provided with a pressing groove 531, and the dispersion flow path 377 is opened to allow the hydrogen gas to flow therein as the opening/closing lever 374 is inserted into and pressed by the pressing groove 531.
A center hole 532 is formed along the periphery of the pressing groove 531 in the manifold block 540. This will be a portion where the hydrogen gas discharged from the dispersion flow path 377 collects.
The manifold channel 533 is connected to the center hole 532, and guides the hydrogen gas to the connection pipe 520. The connection pipe 520 connects the manifold channel 533 to the stack, and hydrogen gas is supplied to the stack through the connection pipe 520.
In this case, similarly, referring to fig. 11, in order to control the flow of hydrogen gas, a branch hole 534 is formed between the center hole 532 and the manifold flow path 533, and a check valve 535 for opening and closing the branch hole 534 may be disposed in the manifold block 540.
In the present invention, the check valve 535 may be a normally closed (normal) type valve which is basically used in a sealed state. In this case, the valve will be opened when the user applies power.
That is, in a state where the opening/closing plug 535d is basically inserted into the branch hole 534, when a user applies power, the rotor 535c is moved in a direction opposite to the branch hole 534 by an electromagnetic reaction. Accordingly, the opening/closing plug 535d attached to the end of the rotor 535c is detached from the branch hole 534, and the opening/closing of the branch hole 534 is adjusted.
If the user stops using the fuel cell power pack and turns off the power supply, the rotor 535c moves again toward the branch hole 534, and the open/close plug 535d is inserted into the branch hole 534, thereby blocking the flow of hydrogen gas.
In the present invention, the check valve 535 will close automatically in the event of a failure or dangerous condition in the fuel cell power pack.
The check valve 535 has an auxiliary means for controlling the flow of hydrogen gas together with the opening/closing rod 374.
For example, when the opening/closing rod 374 is damaged or worn by external impact or long-term use, and the opening/closing of the gas is not smooth, the opening/closing of the gas can be secondarily controlled by the operation of opening/closing the branch hole 534 of the check valve 535.
Since the hydrogen gas used in the present invention is a combustible substance, as described above, the gas supply can be controlled more stably by the first opening and closing structure realized by the opening and closing lever 374 and the pressing groove 531 and the second opening and closing structure realized by the check valve 535 and the branch hole 534.
Another form of the check valve 535 is a manual valve. In the case where the check valve 535 is a manual valve, a user can move the opening/closing plug 535d by directly operating the valve to open/close the branch hole 534.
For check valves that are actuated by electronic control, control errors may occur. If a control error occurs, hydrogen may be supplied at a time that is not desired by the user, and if the supply of hydrogen is not interrupted in an emergency, a safety accident such as an explosion may occur.
In this case, when the manual valve is mounted, the time for supplying hydrogen can be arbitrarily adjusted by a user, and in the case of an emergency, the user can directly and physically control the supply of hydrogen, thereby improving the reliability and safety of the control.
In addition, the automatic control valve is internally provided with an electronic control unit, which leads to an increase in weight and cost, but the use of a manual valve improves such a problem. That is, since the overall weight is reduced, the flight time of the drone can be extended, the payload value can be increased, and since the cost is reduced, the production cost of the fuel cell power pack can be reduced.
Next, the battery housing part 700 may be disposed on one side of the front surface of the main body frame 200 in a bracket shape, and may house a battery 710 that supplies power in parallel with a fuel cell. The battery 710 may be a lithium battery, but is not limited thereto.
That is, in terms of the circuit, the fuel cell and the battery 710 are connected in parallel with the above-described control board 220, whereby power can be selectively supplied in the drone.
First, the unmanned aerial vehicle is supplied with electric power generated through an electrochemical reaction process of oxygen and hydrogen in a stack constituting a fuel cell, thereby starting the unmanned aerial vehicle.
If a larger amount of power is required than the power generated in the stack due to the flight and task execution environment of the drone, insufficient power is supplied in parallel from the battery 710.
In other cases, for example, in the event of an emergency where power supply is stopped due to a broken stack, the battery 710 may provide emergency power to prevent the drone from stopping during flight.
In another embodiment of the present invention, a plurality of battery receiving parts 700 may be arranged, and in this case, a pair of battery receiving parts 700 may be arranged on both sides of the front surface of the main body frame 200 in order to prevent the start of the flying object from being hindered by the weight balance.
The above description pertains only to specific examples of the structure and effects of the individual components forming the open modular structure of a fuel cell power pack.
Therefore, the person skilled in the art can easily understand that the present invention can be replaced or deformed in various ways without departing from the spirit of the present invention described in the scope of the present invention.
Claims (14)
1. An open modular structure for a fuel cell power pack, comprising:
a main body frame;
a fuel tank housing section disposed in a central portion of the main body frame and configured to house a fuel tank;
a stack housing unit disposed at both side portions of the main body frame and configured to house a stack of fuel cells;
a control panel disposed below the front portion of the main body frame;
a valve dismounting part which is arranged at the front part of the main body frame and is connected with a regulating valve of a fuel tank; and
a manifold portion disposed at a front surface portion of the main body frame and connecting the valve mounting/dismounting portion and the stack.
2. The open modular structure of a fuel cell power pack according to claim 1, wherein the fuel tank accommodating portion includes:
a first support block, which is configured at the rear part of the main body frame, and the upper part of the first support block is in a curve shape to support the lower end part of a fuel tank; and
and a second supporting block, which is configured at the lower end part of the main body frame, and the upper surface part of the second supporting block is in a curve shape so as to support the lower end part of the fuel tank.
3. The open module structure of a fuel cell power pack according to claim 2, further comprising a plurality of auxiliary beams disposed on both sides of the second support block in the lower end portion of the main body frame, the upper surface portion being curved to support the lower end portion of the fuel tank.
4. The open modular structure of a fuel cell power pack according to claim 2 or 3, wherein the fuel tank accommodating portion includes:
a fixing rod, which is curved, is arranged at the upper end of the main body frame and is used for fixing the upper end part of the fuel tank; and
and a fixing pin for fastening the fixing rod to the upper end of the main frame.
5. The open modular structure of a fuel cell power pack according to claim 1, wherein the stack accommodating portion includes:
a stack holder disposed at both side portions of the main body frame and configured to receive a stack;
a stack fixing beam combined with the stack bracket in a multi-layer structure for fixing the stack; and
and a discharge port connected to a lower end of the stack tray, for discharging water discharged from the stack to the outside.
6. The open modular structure of a fuel cell power pack according to claim 1, further comprising a plurality of air holes formed on a lower side of a front surface portion of the main body frame so that air flows toward a lower surface side of the control panel.
7. The open module structure of a fuel cell power pack according to claim 1, wherein the valve attaching/detaching portion includes:
a valve connecting pipe disposed at a front surface of the main body frame and connected to the manifold portion; and
and a valve guide pipe connected to the valve coupling pipe and inserted into the regulating valve of the fuel tank.
8. The open module structure of a fuel cell power pack according to claim 7, wherein the valve attaching/detaching portion further includes an attaching/detaching lever for fastening a flange of the valve guide pipe and a flange of the valve coupling pipe.
9. The open modular structure of a fuel cell power pack according to claim 7, wherein the manifold section includes:
a manifold block disposed on a front surface of the main body frame;
a pressing groove formed on the manifold block;
a center hole formed in the manifold block along the periphery of the pressing groove;
a manifold channel connected to the center hole and branched into a plurality of channels; and
and a connection pipe for connecting the manifold flow path and the stack.
10. The open modular structure of a fuel cell power pack according to claim 9, wherein the manifold portion includes:
a branch hole formed between the center hole and the manifold flow path; and
and a check valve disposed in the manifold block and configured to drive an opening/closing lever for opening/closing the branch hole.
11. The open modular structure of a fuel cell power pack according to claim 1, further comprising a battery receiving portion disposed on one side of the front surface portion of the main body frame for receiving a battery for supplying power in parallel with the fuel cell.
12. The open modular structure of a fuel cell power pack according to claim 5,
and a fan housing part which is connected to the stack housing part at both ends of the main frame and in which air is forcibly introduced into the stack housing part,
the fan housing section includes:
the pipeline is connected with the electric pile bracket, and the air passing through the electric pile is collected in the pipeline; and
and a fan unit disposed inside the fan block connected to the duct and configured to discharge the air collected in the duct to the outside.
13. The open modular structure of a fuel cell power pack according to claim 1,
further comprises a drain part disposed at a lower end of the main body frame for discharging fluid,
the above-mentioned drain part includes:
a drain groove formed in a recessed shape at a lower portion of the main body frame, the fluid being collected in the drain groove; and
and a drain hole formed in the drain groove to drain the fluid to the outside.
14. The open module structure of a fuel cell power pack according to claim 13, wherein the drain part further includes a step part formed at a lower end of the main body frame to have a step so that a fluid flows to the drain groove at the lower end of the main body frame.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190073081A KR102279077B1 (en) | 2019-06-19 | 2019-06-19 | Open type module structure of fuel cell power pack |
| KR10-2019-0073081 | 2019-06-19 |
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| CN210156483U true CN210156483U (en) | 2020-03-17 |
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| CN201921252229.9U Active CN210156483U (en) | 2019-06-19 | 2019-08-02 | Open modular structure for fuel cell power pack |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM242637U (en) * | 2002-05-17 | 2004-09-01 | Asia Pacific Fuel Cell Tech | Fast joint for hydrogen fuel bottle and adaptor apparatus for hydrogen fuel bottle with the same |
| CN107925101B (en) * | 2015-07-06 | 2021-06-15 | 深圳市大疆创新科技有限公司 | System and method for unmanned aerial vehicle fuel cell |
| WO2018046990A1 (en) * | 2016-09-07 | 2018-03-15 | Intelligent Energy Limited | Ground stations and methods for pem fuel cell powered unmanned aerial vehicles |
| KR101806261B1 (en) * | 2016-10-17 | 2017-12-07 | 하이리움산업(주) | Multi-Copter Having Fuel Tank Installation Part |
| KR101866191B1 (en) | 2016-12-20 | 2018-06-11 | 서울과학기술대학교 산학협력단 | Portable folding drone |
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| KR102279077B1 (en) | 2021-07-16 |
| KR20200144888A (en) | 2020-12-30 |
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