WO2005099007A1 - 燃料電池ユニット、情報処理装置および情報処理装置の電源制御方法 - Google Patents
燃料電池ユニット、情報処理装置および情報処理装置の電源制御方法 Download PDFInfo
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- WO2005099007A1 WO2005099007A1 PCT/JP2005/005201 JP2005005201W WO2005099007A1 WO 2005099007 A1 WO2005099007 A1 WO 2005099007A1 JP 2005005201 W JP2005005201 W JP 2005005201W WO 2005099007 A1 WO2005099007 A1 WO 2005099007A1
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- Prior art keywords
- fuel cell
- information processing
- power generation
- power
- processing device
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1632—External expansion units, e.g. docking stations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
-
- 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
- H01M8/04186—Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged 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
-
- 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
- H01M8/04328—Temperature; Ambient temperature of anode reactants at the inlet or inside the fuel cell
-
- 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
- H01M8/0444—Concentration; Density
- H01M8/04447—Concentration; Density of anode reactants at the inlet or inside the fuel cell
-
- 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
- H01M8/04537—Electric variables
- H01M8/04544—Voltage
- H01M8/04559—Voltage of fuel cell stacks
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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
- H01M8/04298—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
- H01M8/04—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
- H01M8/04791—Concentration; Density
- H01M8/04798—Concentration; Density 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
- H01M8/04—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
- H01M8/04955—Shut-off or shut-down of fuel cells
-
- 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
- H01M2250/30—Fuel cells in portable systems, e.g. mobile phone, laptop
-
- 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
- H01M8/1011—Direct alcohol fuel cells [DAFC], e.g. direct methanol fuel cells [DMFC]
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/10—Applications of fuel cells in buildings
-
- 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 fuel cell unit, an information processing device, and a power control method for the information processing device.
- the present invention relates to a fuel cell unit connected to an information processing device, an information processing device including the fuel cell unit, and a power supply control method for the information processing device including the fuel cell unit.
- a lithium ion battery is used as a secondary battery which is one of power supply sources for an information processing device.
- One of the features of secondary batteries is that they can be used repeatedly, for example, by being charged using a commercial power supply, as compared with disposable primary batteries.
- the energy density of a fuel cell is theoretically said to be 10 times that of a lithium ion battery (for example, see Non-Patent Document 1).
- a fuel cell has the potential to be able to supply power for a longer period of time (for example, ten times) than a lithium ion battery, given the same volume or mass.
- the power supply times of the two are equal, it means that the fuel cell has the potential to be smaller and lighter than the lithium ion battery.
- a fuel cell does not require external charging if the fuel, for example, methanol or the like is sealed in a small container and united, and the small container is replaced and used. Therefore, for example, in places where there is no AC power supply, power is secured using lithium-ion batteries.
- the information processing device can be used for a longer time in the case where the electric power is secured by using the fuel cell as compared with the case in which the power supply is performed.
- Non-Patent Document 2 There are various types of fuel cell systems (see, for example, Non-Patent Document 2). However, considering that the fuel cell system is suitable for an information processing device, it must be small, light, and easy to handle. And a direct methanol fuel cell (DMFC) system. This type of fuel cell uses methanol as a fuel and injects methanol directly into the fuel electrode without converting it to hydrogen.
- DMFC direct methanol fuel cell
- the concentration of methanol injected into the fuel electrode is important, and if this concentration is high, power generation efficiency deteriorates and sufficient performance cannot be obtained.
- This is a phenomenon in which part of methanol as fuel passes through an electrolyte membrane (solid polymer electrolyte membrane) sandwiched between a fuel electrode (negative electrode) and an air electrode (positive electrode) (this is called a crossover phenomenon).
- the crossover phenomenon becomes more pronounced when the methanol concentration is high, and is reduced when low concentration methanol is injected into the anode.
- Patent Document 1 JP 2003-142137 A
- Patent Document 2 JP-A-2003-86192
- Patent Document 3 Japanese Patent Application Laid-Open No. 2002-169629
- Non-Patent Document 1 "Fuel Cell 2004", Nikkei BP, October 2003, p.49-50, p.64
- Non-Patent Document 2 edited by Konosuke Ikeda, "All about Fuel Cells”, Nihon Jitsugyo Shuppan In August 2001, the direct methanol fuel cell adopted a dilution and circulation system, which enabled the fuel cell unit to be smaller and lighter as a whole, and increased power generation efficiency.
- the dilution circulation system requires auxiliary equipment such as pumps and valves to circulate water and the like, and control for driving the auxiliary equipment is required to start power generation in the fuel cell unit. It is.
- An object of the present invention is to provide a fuel cell unit, an information processing device, and a power supply control method for the information processing device, which enable simple operation.
- the fuel cell unit according to the present invention includes a connecting portion used for connecting to an external device, and the external device via the connecting portion.
- a fuel cell that generates power to be supplied to the fuel cell, a setting switch that can be set to a power generation permission setting that permits power generation using the fuel cell, and a power generation permission setting when the setting switch is set to a power generation permission setting.
- a control unit capable of controlling power generation performed by using the control unit.
- the information processing apparatus starts the information processing apparatus for an information processing apparatus connectable to a fuel cell unit including a fuel cell.
- the present invention is characterized by comprising a starting unit that operates, and a control unit that starts power generation using the fuel cell when the information processing apparatus is started by the starting unit.
- the power supply control method for an information processing apparatus in the power supply control method for an information processing apparatus receiving electric power generated by a fuel cell, the information processing apparatus is activated.
- the information processing device When the information processing device is started, power generation using the fuel cell is started.
- FIG. 1 is an external view showing one embodiment of a fuel cell unit according to the present invention.
- FIG. 2 is an external view of a state in which an embodiment of the information processing apparatus according to the present invention is connected to the fuel cell unit.
- FIG. 3 is a system diagram mainly showing a power generation unit of the fuel cell unit.
- FIG. 4 is a system diagram showing a state where the information processing device is connected to the fuel cell unit.
- FIG. 5 is a system diagram illustrating a first embodiment of the fuel cell unit and the information processing device.
- FIG. 6 is a state transition diagram of the fuel cell unit and the information processing device.
- FIG. 7 is a diagram showing main control commands for the fuel cell unit.
- FIG. 8 is a diagram showing main power information of the fuel cell unit.
- FIG. 9 is a logic diagram of a transmission condition of a driving ON request command according to the information processing apparatus.
- FIG. 10 is a logical diagram of a transmission condition of a driving OFF request command according to the information processing apparatus.
- FIG. 11 is a state transition diagram of the fuel cell unit and the information processing device during an emergency stop.
- FIG. 12 is a logic diagram of conditions for transmitting an emergency stop command according to the information processing apparatus.
- FIG. 1 is an external view showing an embodiment of a fuel cell unit according to the present invention.
- the fuel cell unit 10 includes a mounting portion 11 for mounting an information processing device, for example, a rear portion of a notebook personal computer, and a fuel cell unit main body 12.
- the fuel cell unit body 12 incorporates a DMFC stack that generates power by an electrochemical reaction, and auxiliary devices (pumps, valves, etc.) for injecting and circulating methanol or air serving as a fuel to the DMFC stack.
- auxiliary devices umps, valves, etc.
- a detachable fuel cartridge (not shown) is built in, for example, the left end inside the unit case 12a of the fuel cell unit main body 12, and a cover 12b is provided so that the fuel cartridge can be replaced. Is removable.
- a docking connector 14 is provided on an upper surface of the mounting portion 11 as a connection portion for connecting to the information processing device.
- a docking connector 21 (not shown) is provided as a connection portion for connecting to the fuel cell unit 10 at, for example, a rear portion of the bottom of the information processing device, and is connected to the docking connector 14 of the fuel cell unit 10. Connected mechanically and electrically. Further, three positioning protrusions 15 and hooks 16 are provided on the mounting portion 11, and the positioning protrusions 15 and the hooks are provided in three corresponding holes provided at the rear bottom of the information processing device. 16 is inserted.
- the lock mechanism (shown in FIG. 2) is released by pressing the eject button 17 of the fuel cell unit 10 shown in FIG. And can be easily removed.
- a power generation setting switch 112 and a fuel A battery operation switch 116 is provided on the right side of the fuel cell unit body 12.
- the power generation setting switch 112 is a switch that is set by the user in advance to permit or prohibit power generation in the fuel cell unit 10, and is configured by, for example, a slide switch.
- the operation of the information processing device 18 is continued while the fuel cell operation switch 116 is operating. It is used when only the power generation in is stopped. In this case, the information processing device 18 continues to operate using the power of the built-in secondary battery.
- the fuel cell operation switch 116 is constituted by, for example, a push switch or the like.
- FIG. 2 is a diagram showing an appearance when the information processing device 18 (for example, a notebook personal computer) is placed on the placing portion 11 of the fuel cell unit 10 and connected.
- the information processing device 18 for example, a notebook personal computer
- FIG. 3 is a system diagram of one embodiment of the fuel cell unit 10 according to the present invention, and particularly shows a detailed system of a DMFC stack and auxiliary devices provided around the DMFC stack.
- the fuel cell unit 10 includes a power generation unit 40 and a fuel cell control unit 41 that is a control unit of the fuel cell unit 10.
- the fuel cell control unit 41 controls the power generation unit 40 and has a function as a communication control unit that communicates with the information processing device 18.
- the power generation unit 40 includes a DMFC stack 42 serving as a center for performing power generation, and further includes a fuel cartridge 43 that stores methanol serving as a fuel.
- the fuel cartridge 43 contains high-concentration methanol.
- the fuel cartridge 43 is detachable so that it can be easily replaced when the fuel is consumed.
- the fuel cell unit 10 employs a dilution circulation system 62, and the power generation unit 40 is provided with the auxiliary equipment 63 necessary for realizing the dilution circulation system 62.
- the auxiliary devices 63 include those provided in the liquid flow path and those provided in the gas flow path.
- the connection of the auxiliary equipment 63 provided in the liquid flow path is such that the fuel supply pump 44 is connected to the fuel supply pump 44 by piping from the output part of the fuel cell cartridge 43, and is further connected to the mixing tank 45 from the output part of the fuel supply pump 44.
- the output of the mixing tank 45 is connected to a liquid feed pump 46, and the output of the liquid feed pump 46 is connected to a fuel electrode 47 of the DMFC stack 42.
- the output of the fuel electrode 47 is connected to the mixing tank 45 by piping.
- the output of the water recovery tank 55 is connected to a water recovery pump 56 by a pipe, and the water recovery pump is connected to the mixing tank 45.
- the air supply pump 50 is connected to the air electrode 52 of the DMFC stack 42 via the air supply valve 51.
- the output of the cathode 52 is connected to the condenser 53.
- the mixing tank 45 is also connected to the condenser 53 via a mixing tank valve 48.
- the condenser 53 is connected to an exhaust port 58 via an exhaust valve 57.
- the cooling fan 54 is provided near the condenser 53.
- the high-concentration methanol in the fuel cartridge 43 flows into the mixing tank 45 by the fuel supply pump 44. Inside the mixing tank 45, the high-concentration methanol is mixed and diluted with the recovered water, low-concentration methanol (remaining part of the power generation reaction) from the fuel electrode 47, and the like, thereby producing low-concentration methanol.
- the concentration of low-concentration methanol is controlled so that the power generation efficiency is high and the concentration (for example, 3-6%) can be maintained.
- the amount of high-concentration methanol supplied to the mixing tank 45 by the fuel supply pump 44 based on information from the concentration sensor 60 is controlled.
- it can be realized by controlling the amount of water circulating in the mixing tank 45 with the water recovery pump 56 or the like.
- the aqueous methanol solution diluted in the mixing tank 45 is pressurized by a liquid sending pump 46 and injected into a fuel electrode (negative electrode) 47 of the DMF C stack 42.
- a fuel electrode (negative electrode) 47 of the DMF C stack 42 At the fuel electrode 47, electrons are generated by the oxidation reaction of methanol.
- Hydrogen ions (H +) generated by the oxidation reaction pass through the solid polymer electrolyte membrane 422 in the DM FC stack 42 and reach the air electrode (positive electrode) 52.
- the carbon dioxide generated by the oxidation reaction performed at the fuel electrode 47 returns to the mixing tank 45 together with the aqueous methanol solution that has not been subjected to the reaction. Carbon dioxide It is vaporized in the mixing tank 45, passes through the mixing tank valve 48 to the condenser 53, and is finally exhausted to the outside through the exhaust port 58 via the exhaust valve 57.
- the flow of air is taken in from the intake port 49, pressurized by the air supply pump 50, and injected into the air electrode (positive electrode) 52 via the air supply valve 51.
- oxygen O
- the steam is cooled by the cooling fan 54 to become water (liquid), and is temporarily stored in the water recovery tank 55.
- the recovered water is circulated to the mixing tank 45 by a water recovery pump 56 to form a dilution circulation system 62 for diluting high-concentration methanol.
- auxiliary equipment 63 such as valves 48, 51, 57 or cooling fan 54.
- an aqueous methanol solution and air (oxygen) are injected into the DMFC stack 42, and an electrochemical reaction proceeds therein, whereby electric power is obtained.
- power generation is stopped by stopping the driving of these auxiliary devices 63.
- FIG. 4 shows a system configuration of an information processing device 18 to which the fuel cell unit 10 according to the present invention is connected.
- the information processing device 18 includes a CPU 65, a main memory 66, a display controller 67, a display 68, an HDD (Hard Disc Drive) 69, a keyboard controller 70, a pointer device 71, a keyboard 72, an FDD (Floppy (registered trademark) Disc). Drive) 73, a bus 74 for transmitting a signal between these components, a device called a north bridge 75, a device called a south bridge 76 for converting a signal transmitted via the bus 74, and the like.
- a power supply unit 79 is provided inside the information processing device 18, and a secondary battery 80, for example, a lithium ion battery is provided here.
- the power supply unit 79 is controlled by a control unit 77 (hereinafter, referred to as a power supply control unit 77).
- a control system interface and a power supply system interface are provided as an electrical interface between the fuel cell unit 10 and the information processing device 18.
- the control interface is an information processing device This is an interface provided for communication between the power supply controller 77 of the controller 18 and the controller 41 of the fuel cell unit 10. Communication performed between the information processing device 18 and the fuel cell unit 10 via the control system interface is performed, for example, via the I2C bus 78 and a serial bus.
- the power supply system interface is an interface provided for transmitting and receiving power between the fuel cell unit 10 and the information processing device 18.
- the power generated by the DMFC stack 42 of the power generation unit 40 is supplied to the information processing device 18 via the control unit 41 (hereinafter, referred to as the fuel cell control unit 41) and the docking connectors 14 and 21.
- the power supply system interface also has a power supply 83 from the power supply unit 79 of the information processing device 18 to the auxiliary devices 63 and the like in the fuel cell unit 10.
- a DC power obtained by ACZDC conversion is supplied to the power supply unit 79 of the information processing device 18 via the AC adapter connector 81, whereby the operation of the information processing device 18 and the secondary battery ( Lithium-ion battery) 80 can be charged.
- FIG. 5 is a configuration example showing a connection relationship between the fuel cell control unit 41 of the fuel cell unit 10 and the power supply unit 79 of the information processing device 18.
- the fuel cell unit 10 and the information processing device 18 are mechanically and electrically connected by docking connectors 14 and 21.
- the docking connectors 14 and 21 have a first power supply terminal (output power supply terminal) 91 for supplying the power generated by the DMFC stack 42 of the fuel cell unit 10 to the information processing device 18, and a connection from the information processing device 18.
- a second power supply terminal (for auxiliary equipment) for supplying power to the computer 95 of the fuel cell unit 10 through the regulator 94 and to the power supply circuit 97 for auxiliary equipment via the switch 101.
- Input power supply terminal) 92 In addition, a third power supply terminal 92a for supplying power from the information processing device 18 to the EEPROM 99 is provided.
- the docking connectors 14 and 21 communicate with the power control unit 77 of the information processing device 18 and the microcomputer 95 of the fuel cell unit 10 and with the writable nonvolatile memory (EEPROM) 99. It has a communication input / output terminal 93 for performing.
- EEPROM writable nonvolatile memory
- the information processing device 18 recognizes that the information processing device 18 and the fuel cell unit 10 are mechanically and electrically connected based on the signal output from the connector connection detection unit 111. This recognition detects that the connector connection detection unit 111 is grounded inside the fuel cell unit 10 by connecting the docking connectors 14 and 21 based on, for example, a signal input to the connector connection detection unit 111. This is done by:
- the power control unit 77 of the information processing device 18 recognizes whether the setting of the power generation setting switch 112 of the fuel cell unit 10 is a power generation prohibition setting which is a power generation permission setting. For example, based on a signal input to the power generation setting switch detection unit 113, the power generation setting switch detection unit 113 detects whether the power generation setting switch 112 is in the ground state or the open state according to the setting state of the power generation setting switch 112. I do. When the power generation setting switch 112 is in the released state, the power supply control unit 77 recognizes that the power generation is prohibited.
- the state where the power generation setting switch 112 is in the power generation prohibition setting is a state corresponding to “stop state (0)” ST10 in the state transition diagram of FIG.
- the fuel cell control is performed via the third power terminal 92 a from the information processing device 18 side.
- Power is supplied to a nonvolatile memory (EEPROM) 99 serving as a storage unit of the unit 41.
- EEPROM 99 identification information of the fuel cell unit 10 and the like are stored in advance.
- the identification information can include in advance information such as a part code of the fuel cell unit, a manufacturing serial number, or a rated output.
- the EEPROM 99 is connected to a serial bus such as an I2C bus 93, and data stored in the EEPROM 99 can be read while power is supplied to the EEPROM 99.
- the power supply control unit 77 can read information from the EEPROM 99 via the communication input / output terminal 93.
- the fuel cell unit 10 is not generating power, and the internal state of the fuel cell unit 10 is such that no power is supplied except for the power supply of the EEPROM 99. It is a state.
- the state is the “stop state (0)” ST10, and the fuel cell unit 10 It is possible to prohibit power generation.
- the power generation setting switch is in an open or closed state, for example, like a slide switch.
- V ⁇ one or the other.
- the reading of the identification information by the power supply control unit 77 is performed by reading the identification information of the fuel cell unit 10 stored in the EEPROM 99 provided in the fuel cell unit 10 via a serial bus such as the I2C bus 78. .
- the state shown in Fig. 6 is from the “stop state (1)” ST11 to the “stannoise state” ST.
- the power supply control unit 77 provided in the information processing device 18 closes a switch 100 provided in the information processing device 18 so that the power of the secondary battery 80 is connected to the first power supply terminal 92.
- the power is supplied to the fuel cell unit 10 via the regulator 95, and the power is supplied to the microcomputer 95 via the regulator 94.
- the switch 101 provided in the fuel cell unit 10 is open, and power is not supplied to the auxiliary power supply circuit 97. Therefore, in this state, the auxiliary machine 63 operates.
- the microcomputer 95 has started to operate while receiving various control commands via the I2C bus 78 from the power supply control unit 77 provided in the information processing device 18. It is in a state.
- the microcomputer 95 is connected to the fuel cell unit 10. Power information can be transmitted to the information processing device 18 via the I2C bus.
- FIG. 7 is a diagram showing an example of a control command sent from the power supply control unit 77 provided in the information processing device 18 to the microcomputer 95 provided in the fuel cell control unit 41.
- FIG. 8 is a diagram showing an example of power supply information sent from the microcomputer 95 provided in the fuel cell control unit 41 to the power supply control unit 77 provided in the information processing device 18.
- the power supply control unit 77 provided in the information processing device 18 reads the "DMFC operation state" (No. 1 in Fig. 8) of the power supply information in Fig. 8 and turns the fuel cell unit 10 into the "standby state" ST20. Recognize that
- the power supply control unit 77 sends a “DMFC operation ON request” command (power generation start command) among the control commands shown in FIG. 7 to the fuel cell control unit 41.
- the fuel cell control unit 41 that has received this shifts the state of the fuel cell unit 10 to the “warm-up state” ST30.
- the switch 101 provided in the fuel cell control unit 41 is closed, and the power from the information processing device 18 is supplied to the auxiliary power supply circuit 97.
- the control signal for the auxiliary equipment transmitted from the microcomputer 95 causes the power generator 63 to be installed in the power generator # 40, good! Then, the pumps 44, 46, 50, 56, the knobs 48, 51, 57 and the cooling fan 54 shown in FIG. 4 are driven. Further, the microcomputer 95 closes the switch 102 provided in the fuel cell control unit 41.
- an aqueous methanol solution or air is injected into the DMFC stack 42 provided in the power generation unit 40, and power generation is started.
- the power generated by the DMFC stack 42 is started to be supplied to the information processing device 18.
- the power generation output does not reach the rated value instantaneously, and the state until it reaches the rated value is called “warm-up state” ST30.
- the microcomputer 95 provided in the fuel cell control unit 41 determines that the output of the DMFC stack 42 has reached the rated value, for example, by monitoring the output voltage of the DMFC stack 42 and the temperature of the DMFC stack 42. Then, the switch 101 provided in the fuel cell unit 10 is opened, and the power supply source for the auxiliary device 63 is changed from the information processing device 18 to the DMFC stack 42. Switch. This state is “ON state” ST40.
- FIG. 9 is a logic diagram showing conditions for the power supply control unit 77 provided in the information processing device 18 to transmit a “DMFC operation ON request” command to the microcomputer 95 provided in the fuel cell unit 10. is there.
- the first condition for transmitting the “DMFC operation ON request” command is that the state of the fuel cell unit 10 is the stop state (2) ST12, the standby state ST20, or the cool-down state ST50. Either state. These three states are possible only when the power generation setting switch is set to the power generation permission setting, as shown in the state transition diagram in FIG.
- the second condition for transmitting the “DMFC operation ON request” command is that the information processing device 18 is activated by some information processing device activation means of the information processing device 18.
- the information processing device activation means an ON operation of the power switch 114 provided in the information processing device 18 can be considered.
- the information processing device 18 is started when the power control unit 77 detects that the power switch 114 has been pressed.
- the information processing device 18 when the information processing device 18 is, for example, a notebook personal computer, the information processing device 18 stops operating once when the display panel is closed during operation, but when the display panel is opened again, the information processing device 18 is stopped. 18 restarts.
- the switch 115 that mechanically detects that the display panel has been opened serves as an information processing device activation unit.
- the power to be in the resume mode mainly for the purpose of power saving for example, the fact that any key of the keyboard 72 has been pressed is determined by the keyboard controller 70. Is detected, and the power control unit 77 can restart the information processing device 18 based on this information. In this case, the detecting means of the keyboard controller 70 becomes the information processing device starting means.
- the second condition for transmitting the “DMFC operation ON request” command is a start operation for the information processing device 18 as described above.
- the user confirms that the power source of the information processing device 18 is the fuel cell unit 10. It is possible to cause the fuel cell unit 10 to transition to a steady power generation state, that is, an “on state” ST40, by a method of starting the information processing device 18 without being aware of it.
- the first condition for transmitting the "DMFC operation ON request" command is that the fuel cell unit 10 is attached to the information processing device 18 via the docking connectors 14, 21 and the power generation setting switch 112 is turned on. This is to set the power generation permission setting and automatically shift the fuel cell unit 10 to the “standby state” ST20.
- the power generation of the fuel cell unit 10 starts in conjunction with the startup procedure of the information processing apparatus 18.
- the operation can be simplified and the convenience for the user can be improved.
- stop state (2) ST12 is shown.
- the “stop state (2)” ST12 is the state power of the “standby state” ST20. For example, when the state continues for a predetermined time, such as 1 minute or more, the state is forcibly transited to the “stop state (2)” ST12. It is. This is because the power control unit 77 is provided in the information processing device 18 when the “DMFC operation ON request” command is not transmitted from the information processing device 18 for a predetermined time or more in the “standby state” ST20.
- the power supply from the battery 80 to the fuel cell unit 10 is stopped (the switch 100 provided in the information processing device 18 is opened), and when a factor for transmitting the “DMFC operation ON request” command occurs (for example, When the power switch 114 of the processing device 18 is pressed), the power control unit 77 closes the switch 100 again, and then transmits a “DMFC operation ON request” command to the microcomputer 95 provided in the fuel cell unit 10. Control.
- the power supply control unit 77 provided in the information processing device 18 reads out the power supply information of the microcomputer 95 provided in the fuel cell unit 10 via the I2C bus 78, thereby obtaining the D MFC operation state (the number in FIG. Recognize that 1) is “!” Of “warm-up state” ST30 or “on-state” ST40.
- the power source of the accessory power supply circuit 97 used to drive the accessory 63 is Switch to the secondary battery 80 supplied via the power supply terminal 92.
- the microcomputer 95 opens the switch 102 provided in the fuel cell unit, the supply of the power generated by the DMFC stack 42 to the information processing device 18 is stopped.
- the microcomputer 95 stops the air supply pump 50 and activates the liquid supply pump 46, and continues this pump operation state for a predetermined period. By this operation, the bubbles of carbon dioxide adhering to the liquid supply path inside the fuel electrode 47 can be washed away and removed.
- the microcomputer 95 stops the liquid sending pump 46 and operates the air sending pump 50 at the maximum capacity. This pump operation state is continued for a predetermined period. By this operation, water droplets adhering to the air supply path inside the air electrode 52 can be washed away and removed.
- the power generation efficiency at the next power generation start can be improved by automatically bleeding and removing bubbles and water droplets generated by the power generation of the DMFC stack during the power generation stop sequence. It becomes.
- the exhaust valve 57 and the air supply valve 51 are installed in order to prevent the outside air force around the fuel cell unit 10 from being mixed with unnecessary substances and to prevent the liquid fuel set in the fuel cell unit 10 from leaking. close. Further, the microcomputer 95 stops supplying power from the accessory power supply circuit 97 to the accessory 63.
- the power supply control unit 77 provided in the information processing device 18 reads out the power supply information (the information shown in Fig. 8) of the fuel cell unit 10 via the I2C bus 78 every predetermined period, for example, every 100ms. It recognizes that the power information of the fuel cell unit 10 has entered the “standby state”.
- the fuel cell unit 10 includes a "refresh state” ST60 as shown in FIG. “Refresh state” ST60 is intended to maintain the power generation efficiency of the fuel cell unit 10.
- the “on state” ST40 is automatically transited from the “on state” ST40 to the “refresh state” ST60 every predetermined period, and the “on state” ST40 is automatically returned after the refresh processing for the predetermined period is completed.
- the content of the refresh process is the same as the content of the process of the "cool down state" ST50, and causes unnecessary water droplets and bubbles generated in the air supply path and the liquid supply path of the DMFC stack 42 to flow off * and be removed. Things.
- FIG. 10 is a logic diagram showing conditions for the power supply control unit 77 to transmit a “DMFC operation OFF request” command to the microcomputer 95.
- the first condition for the power supply control unit 77 to transmit the "DMFC operation OFF request" command is that the state of the fuel cell unit 10 is "warm-up state” ST30, "on state” ST40, or "refresh”. State ”is when in any state of ST60. As can be seen from the state transition diagram of FIG. 6, these three states are the cases where the setting of the power generation setting switch is set to the setting of the power generation permission.
- the second condition for the power supply control unit 77 to transmit the "DMFC operation OFF request" command is that the information processing device 18 is stopped by any information processing device stopping means of the information processing device 18. .
- the information processing device stopping means there is a power switch 114 provided in the information processing device 18. The information processing device 18 is stopped when the power control unit 77 detects that the power switch 114 has been pressed.
- the information processing device 18 when the information processing device 18 is, for example, a notebook personal computer, the information processing device 18 can be stopped by closing the display panel during the operation.
- the switch that detects that the display panel is closed 11 5 is an information processing device stopping means.
- the second condition for the power supply control unit 77 to transmit the "DMFC operation OFF request" command is as follows.
- the deviation is also a stop operation for the information processing device 18.
- the state of the fuel cell unit 10 is “warm-up state”.
- the power control unit 77 When the remaining amount of the secondary battery 80 is less than a predetermined value, the power control unit 77
- the fuel cell unit 10 is provided with an operation switch 116.
- the operation switch 116 is composed of, for example, a push switch.
- the operation switch 116 is, for example, V when the power generation setting switch 112 is set to the power generation permission setting, so that the state of the fuel cell unit 10 is “Standby state” ST20 or “Stop state (2)” ST12. In such a case, the power generation sequence of the fuel cell unit 10 is started.
- the power control unit 77 detects that the operation switch 116 provided on the fuel cell unit 10 has been pressed without using the information processing device activation means of the information processing device 18, and the power control unit 77 By transmitting a “DMFC operation ON request” command to the microcomputer 95, a power generation start sequence is started.
- FIG. 11 is a diagram showing a state transition diagram when the fuel cell unit 10 is emergency stopped.
- the power supply control unit 77 issues a “forced stop request”.
- the cool-down state ST50 is not passed, and if it is in the cool-down state ST50, the cool-down process is stopped halfway, and the air supply valve 51 and the exhaust valve are stopped. After closing 57 and the mixing tank valve 48, the operation shifts to the “standby state” ST20. After that, the switch 100 provided in the information processing device 18 is opened to stop the power supply from the secondary battery 80, and transit to “stop state (0)”.
- the “forced stop request command” indicates that the fuel cell unit 10 is in one of the “warm up state” ST30, the “on state” ST40, or the “cool down state” ST50.
- the first condition it is transmitted when the power generation setting switch 112 provided in the fuel cell unit 10 is changed to the power generation permission setting power generation setting (the second condition).
- the power generation setting switch 112 is set to the power generation prohibition to stop the power generation in a short time. Is possible.
- the present invention is not limited to the above embodiment as it is, and may be embodied by modifying its constituent elements without departing from the scope of the invention at the stage of implementation.
- Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components, such as all components shown in the embodiment, may be deleted. Further, components of different embodiments may be appropriately combined.
- the power generation of the fuel cell unit is automatically started and stopped in conjunction with the start / stop of the information processing apparatus.
- a simple operation for executing the sequence can be performed.
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Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/541,611 US20070072023A1 (en) | 2004-03-31 | 2006-09-28 | Fuel cell unit, information processing apparatus, and power supply control method for information processing apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004108045A JP2005294065A (ja) | 2004-03-31 | 2004-03-31 | 燃料電池ユニット、情報処理装置および情報処理装置の電源制御方法 |
JP2004-108045 | 2004-03-31 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/541,611 Continuation US20070072023A1 (en) | 2004-03-31 | 2006-09-28 | Fuel cell unit, information processing apparatus, and power supply control method for information processing apparatus |
Publications (1)
Publication Number | Publication Date |
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WO2005099007A1 true WO2005099007A1 (ja) | 2005-10-20 |
Family
ID=35125387
Family Applications (1)
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PCT/JP2005/005201 WO2005099007A1 (ja) | 2004-03-31 | 2005-03-23 | 燃料電池ユニット、情報処理装置および情報処理装置の電源制御方法 |
Country Status (4)
Country | Link |
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US (1) | US20070072023A1 (ja) |
JP (1) | JP2005294065A (ja) |
CN (1) | CN1957493A (ja) |
WO (1) | WO2005099007A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1793442A1 (en) * | 2005-11-10 | 2007-06-06 | Samsung SDI Co., Ltd. | Method for controlling peripheral system and fuel cell system using the same |
EP1901383A1 (en) * | 2006-09-13 | 2008-03-19 | Samsung SDI Co., Ltd. | Fuel cell having actuator controlling unit and method of operating the same |
WO2008064084A1 (en) * | 2006-11-17 | 2008-05-29 | Bdf Ip Holdings Ltd. | Fuel cell system apparatus |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101199098B1 (ko) * | 2006-01-05 | 2012-11-08 | 삼성에스디아이 주식회사 | 직접 메탄올형 연료전지 시스템 및 그 운전 방법 |
JP2008146950A (ja) * | 2006-12-08 | 2008-06-26 | Ricoh Co Ltd | 燃料電池システム、電子機器及び画像形成装置 |
JP4803532B2 (ja) * | 2007-04-06 | 2011-10-26 | Necカシオモバイルコミュニケーションズ株式会社 | 電子機器及び電子機器のプログラム |
TWI445240B (zh) * | 2007-08-30 | 2014-07-11 | Yamaha Motor Co Ltd | 燃料電池系統及其控制方法 |
EP2045863A1 (en) * | 2007-10-05 | 2009-04-08 | Atomic Energy Council - Institute of Nuclear Energy Research | Method for supplying fuel to fuel cell |
DE102009036199A1 (de) * | 2009-08-05 | 2011-02-17 | Daimler Ag | Verfahren zum Betreiben eines Brennstoffzellensystems in einem Fahrzeug |
JP5543173B2 (ja) * | 2009-10-30 | 2014-07-09 | ヤマハ発動機株式会社 | 燃料電池システムおよびそれを備える輸送機器 |
KR101903803B1 (ko) * | 2010-12-14 | 2018-10-02 | 꼼미사리아 아 레네르지 아또미끄 에 오 에네르지 알떼르나띠브스 | 연료전지시스템 |
US20200373596A1 (en) * | 2017-11-28 | 2020-11-26 | Kyocera Corporation | Fuel cell system and equipment management method |
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- 2005-03-23 CN CNA2005800161394A patent/CN1957493A/zh active Pending
- 2005-03-23 WO PCT/JP2005/005201 patent/WO2005099007A1/ja active Application Filing
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- 2006-09-28 US US11/541,611 patent/US20070072023A1/en not_active Abandoned
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JP2002169629A (ja) * | 2000-11-30 | 2002-06-14 | Toshiba Corp | 情報処理装置 |
JP2003223243A (ja) * | 2002-01-29 | 2003-08-08 | Toshiba Corp | 情報機器 |
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EP1901383A1 (en) * | 2006-09-13 | 2008-03-19 | Samsung SDI Co., Ltd. | Fuel cell having actuator controlling unit and method of operating the same |
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WO2008064084A1 (en) * | 2006-11-17 | 2008-05-29 | Bdf Ip Holdings Ltd. | Fuel cell system apparatus |
Also Published As
Publication number | Publication date |
---|---|
US20070072023A1 (en) | 2007-03-29 |
CN1957493A (zh) | 2007-05-02 |
JP2005294065A (ja) | 2005-10-20 |
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