WO2004064187A1 - Dispositif electronique - Google Patents

Dispositif electronique Download PDF

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Publication number
WO2004064187A1
WO2004064187A1 PCT/JP2003/016925 JP0316925W WO2004064187A1 WO 2004064187 A1 WO2004064187 A1 WO 2004064187A1 JP 0316925 W JP0316925 W JP 0316925W WO 2004064187 A1 WO2004064187 A1 WO 2004064187A1
Authority
WO
WIPO (PCT)
Prior art keywords
electronic device
fuel cell
air
camera
space
Prior art date
Application number
PCT/JP2003/016925
Other languages
English (en)
Japanese (ja)
Inventor
Shuji Iijima
Tomoki Nishimura
Akihiro Yoshizawa
Hisashi Okutsu
Junichi Omi
Takao Goto
Toshiyuki Nakamura
Original Assignee
Nikon Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2003001758A external-priority patent/JP4411507B2/ja
Priority claimed from JP2003001636A external-priority patent/JP4407124B2/ja
Priority claimed from JP2003001757A external-priority patent/JP4352703B2/ja
Priority claimed from JP2003001638A external-priority patent/JP4407125B2/ja
Priority claimed from JP2003001634A external-priority patent/JP4407123B2/ja
Application filed by Nikon Corporation filed Critical Nikon Corporation
Priority to AU2003292645A priority Critical patent/AU2003292645A1/en
Publication of WO2004064187A1 publication Critical patent/WO2004064187A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M8/04—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
    • 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
    • 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 an electronic device, and more particularly, to a method for reliably supplying air to a fuel cell serving as a power supply or a battery chamber accommodating a fuel cell.
  • the present invention relates to an electronic device capable of reliably supplying power. Background art
  • lithium batteries and alkaline manganese batteries have been used as power supplies for cameras.
  • the size of fuel cells has been reduced, and the use of small fuel cells as power sources for cameras has been considered as the next generation power source.
  • Fuel cells use oxygen in the air in addition to using methanol as their fuel, so air circulation is required.
  • a fuel cell requires oxygen for power generation, but if the fuel cell is simply housed in the cell compartment, it will not be possible to obtain sufficient oxygen, so the fuel cell will have sufficient power. Supply may be difficult. Disclosure of the invention
  • the present invention has been made in view of such a situation, and has as its object to easily and reliably supply air to a fuel cell serving as a power supply or into a battery chamber. I do. T JP2003 / 016925
  • a first electronic device includes a battery chamber for housing a fuel cell, at least one first air hole communicating the space of the battery chamber to the outside of the housing, and at least one first air hole communicating to the outside of the housing.
  • a second air hole and an air passage that flows between the first air hole and the second air hole, and the air flows from one of the first air hole and the second air hole.
  • a suction / exhaust mechanism that sucks air and exhausts the sucked air to the other, a pump chamber provided in the suction / exhaust mechanism, and a substantially enclosed space with the wall of the pump chamber.
  • a moving member that moves by its own weight to change the volume of the substantially enclosed space.
  • the pump chamber includes a first opening communicating with the space of the battery chamber, and a second opening communicating with the second air hole, and a second member communicating with the first opening and the second opening by the moving member.
  • the first space and the second space having at least one third air hole can be divided into at least two spaces.
  • the intake / exhaust mechanism may include, at positions corresponding to one and the other of the first opening and the second opening, an intake valve that allows only air suction and an exhaust valve that allows only air exhaust. it can.
  • the battery chamber can include an opening for loading the fuel cell, a first position covering the opening, and a battery lid movable at a second position exposing the opening.
  • the battery lid may include a first air hole.
  • the moving member can have a mass that can move in the vertical direction by its own weight when the electronic device is in an upright state.
  • the moving member can include a weight having a mass that can move in the vertical direction by its own weight in a state where the electronic device is erected.
  • the pump chamber has a first opening and a second opening communicating with the space of the battery chamber, and a third opening and a fourth opening communicating with the second air hole.
  • the first empty space is located at a position corresponding to the first through fourth openings.
  • the pump chamber includes a first opening communicating with the battery chamber, a second opening communicating with the second air hole, and a first space communicating with the first opening by the moving member;
  • the second member is divided into at least two spaces in the second space communicating with the opening of the first member, and the suction / exhaust mechanism moves the moving member to the third opening and a position corresponding to the second opening and the third opening.
  • the air in the space with the smaller volume is transferred to one of the space in the battery compartment and the second air hole.
  • a first valve and a second valve that exhaust air and inhale air from the other into a space having a larger volume can be provided.
  • a moving member that moves by its own weight is provided in the intake / exhaust mechanism, and when the posture of the electronic device is changed, the volume of the substantially enclosed space is changed to thereby change the battery chamber. Is supplied with air.
  • the second electronic device of the present invention is provided outside the housing, and is an operation member operated by a user when preparing to take a picture of the electronic device; a ventilation unit for ventilating air around the fuel cell; and an operation member.
  • the ventilation unit When the is operated, the movement of the operation member is transmitted to the ventilation unit, and the ventilation unit is provided with a transmission unit for ventilating the air around the fuel cell.
  • the operating member may be linked to a main switch for turning on the electronic device.
  • the operation member is a slide cover that slides between a first position for covering the taking lens and a second position for exposing, and the transmission unit ventilates the movement of the slide cover when the slide cover is slid. To the ventilator and allow the ventilator to ventilate the air around the fuel cell.
  • the transmission part is located inside the slide cover, and slides integrally with the slide cover, and engages with the rack and is connected to the ventilation part. And a gear that rotates when one is slid and rotates the fan of the ventilator.
  • a battery chamber for storing the fuel cell at least one first air hole communicating the space of the battery chamber with the outside of the housing of the electronic device, and a space between the slide cover and the housing outside of the housing.
  • the apparatus further includes at least one second air hole communicating with the first air hole, and a pipe that is a passage of air flowing between the first air hole and the second air hole. However, the air in the space in the pipe can be sucked from one of the first air hole and the second air hole and exhausted from the other.
  • the movement of the operation member is transmitted to the ventilation unit, and the air around the fuel cell is ventilated.
  • a third electronic device includes a driving unit for driving members, a fuel cell for supplying necessary electric power to the driving unit, a blowing unit for blowing air to the fuel cell, and a driving force of the driving unit. Transmitting means for transmitting the air to the blowing means.
  • the electronic device may be a camera, and the driving means may be driven to transfer the film.
  • the electronic device may be a camera, and the driving means may transmit the driving force for winding the film to the blowing means.
  • the electronic device may be a camera, and the driving unit may transmit the driving force for rewinding the film to the blowing unit.
  • the electronic device may be a camera, and the transmitting means may transmit the driving force supplied via the film to the blowing means.
  • the electronic device is a camera
  • the blower means includes a fan
  • the transmission means includes a plurality of gears
  • one of the gears and the rotation axis of the fan may be coaxial. it can.
  • a fourth electronic device of the present invention is an electronic device that uses a fuel cell as a power supply, and a fan that blows air to the fuel cell, a motor that rotates the fan, and the electronic device starts a predetermined operation.
  • first voltage detecting means for detecting the voltage of the fuel cell
  • first control means for controlling the motor to start rotating when a predetermined operation of the electronic device is started, and electronically.
  • the second voltage detecting means for detecting the voltage of the fuel cell, and after the predetermined operation of the electronic device, the rotation of the motor is detected by the first voltage detecting means. It is characterized by comprising a voltage and a second control means for controlling the voltage to be further continued for a set time based on the voltage detected by the second voltage detection means.
  • the first control means can control the motor to start rotating when the power switch of the electronic device is turned on.
  • the electronic device is a camera
  • the second control means can control so that the rotation of the motor is further continued when the half-pressed state of the release button of the camera is released.
  • the electronic device is a camera
  • the first control means starts the rotation of the motor when the release button of the camera is fully pressed
  • the second control means when the charging of the strobe is completed. It is possible to control to continue the rotation of the motor further.
  • the time for continuously rotating the fan is determined based on the voltage detected before the operation starts and the voltage detected after the operation ends. Is done.
  • the control means can control the motor to rotate for a certain time when the power switch of the electronic device is turned on.
  • the electronic device is a camera
  • the control means starts the rotation of the motor when the release button of the camera is half-pressed, and when a certain time has elapsed since the release of the release button half-pressed, Control can be performed to stop the rotation of the motor.
  • the electronic device is a camera, and the control means starts the rotation of the motor when the release button of the camera is fully pressed, and when the fixed time elapses after the strobe charge is completed, It can be controlled to stop rotation.
  • the electronic device is a camera, and the fan can be formed integrally with the light-blocking vanes of the photosensor that detects the amount of drive of the camera lens barrel.
  • the electronic device is a camera, and the fan can be arranged coaxially with the light-shielding blades of the photosensor that detects the amount of drive of the camera barrel.
  • the motor that rotates the fan is rotated for a fixed time.
  • FIG. 1 is a sectional view showing a configuration of a camera to which the present invention is applied.
  • FIG. 2 is a cross-sectional view showing the configuration of the pump chamber in FIG.
  • FIG. 3 is a cross-sectional view showing the configuration of the pump chamber in FIG.
  • FIG. 4 is a cross-sectional view illustrating a configuration of a camera to which the present invention is applied.
  • FIG. 5 is a cross-sectional view illustrating a configuration of a camera to which the present invention is applied.
  • FIG. 6 is a cross-sectional view showing a configuration of a camera to which the present invention is applied.
  • FIG. 7 is a cross-sectional view illustrating a configuration of a camera to which the present invention is applied.
  • FIG. 8 is a cross-sectional view illustrating a configuration of a camera to which the present invention is applied.
  • FIG. 9 is a cross-sectional view showing the configuration of the pump chamber in FIG.
  • FIG. 10 is a sectional view showing the configuration of the pump chamber in FIG.
  • FIG. 11 is a cross-sectional view showing a configuration of a horizontal section in a non-operation state of a camera to which the present invention is applied.
  • FIG. 12 is a block diagram showing an example of the electrical configuration of the camera shown in FIG.
  • FIG. 13 is a front view showing a front configuration of the camera of FIG. 11 in a non-operating state.
  • FIG. 14 is a cross-sectional view showing a configuration of a horizontal cross section of the camera of FIG.
  • FIG. 15 is a front view showing the configuration of the front of the camera in FIG. 11 in a non-operation state.
  • FIG. 16 is a cross-sectional view showing a configuration of a horizontal cross section of the camera of FIG.
  • FIG. 17 is a cross-sectional view showing a configuration of a vertical cross section as viewed from the front of the camera of FIG.
  • FIG. 18 is a cross-sectional view showing a configuration of a vertical cross section of the camera in FIG. 11 as viewed from the right side.
  • FIG. 19 is a cross-sectional view showing a configuration of a vertical cross section as viewed from the back of the camera of FIG.
  • FIG. 20 is a cross-sectional view showing a configuration of a horizontal cross section of a camera to which the present invention is applied.
  • FIG. 21 is a sectional view taken along line GG of FIG.
  • FIG. 22 is a block diagram showing an example of the electrical configuration of the camera shown in FIG.
  • FIG. 23 is a flowchart illustrating the air supply process of the camera.
  • FIG. 24 is a diagram illustrating a comparison between the voltage of the fuel cell and the reference value in step S3 of FIG.
  • FIG. 25 is a sectional view taken along line EE of FIG.
  • FIG. 26 is a diagram illustrating a configuration of a gear train until the driving force of the motor in FIG. 25 is transmitted to the fan gear.
  • FIG. 27 is a sectional view taken along line FF of FIG.
  • FIG. 28 is a diagram illustrating a configuration of a gear train until the driving force of the motor in FIG. 27 is transmitted to the fan gear.
  • FIG. 29 is a partial cross-sectional view taken along the line GG of FIG.
  • FIG. 30 is a block diagram showing a configuration of a camera according to an embodiment of the present invention.
  • FIG. 31 is a diagram showing a schematic configuration of a main body of the camera of FIG.
  • FIG. 32 is a flowchart for explaining the processing when the main switch of the camera in FIG. 30 is turned on.
  • FIG. 33 is a flowchart for explaining the processing when the main switch of the camera in FIG. 30 is turned on.
  • FIG. 34 is a diagram for explaining the reference voltage of the cell voltage of the fuel cell.
  • FIG. 35 is a flowchart for explaining the processing when the main switch of the camera in FIG. 30 is turned off.
  • FIG. 38 is a flowchart for explaining the processing when the half-press switch of the camera in FIG. 30 is turned on.
  • FIG. 39 is a flowchart for explaining the processing when the release switch of the camera in FIG. 30 is turned on.
  • FIG. 40 is a block diagram showing the configuration of an embodiment of the camera of the present invention.
  • FIG. 41 is a diagram showing a schematic configuration of the lens barrel position detection unit in FIG.
  • FIG. 42 is a diagram showing a configuration of the photosensor of FIG.
  • FIG. 43 is a diagram showing another configuration of the photosensor of FIG.
  • 3 ⁇ 444 is a flowchart for explaining the processing when the main switch of the camera in FIG. 40 is turned on.
  • FIG. 45 is a flowchart for explaining the processing when the main switch of the camera in FIG. 40 is turned off.
  • FIG. 46 is a flowchart for explaining the processing when the half-press switch of the camera in FIG. 40 is turned on.
  • FIG. 47 is a flowchart for explaining the processing when the half-press switch of the camera in FIG. 40 is turned on.
  • FIG. 48 is a flowchart for explaining the processing when the release switch of the camera in FIG. 40 is turned on.
  • FIG. 49 is a flow chart for explaining the processing when the release switch of the camera in FIG. 40 is turned on.
  • FIG. 1 is a sectional view showing a configuration of a camera 1 to which the present invention is applied.
  • a lens barrel 3 is disposed at the center of the front of the housing 2 of the camera 1.
  • a finder 4 is provided at the upper left
  • a strobe 5 is provided at the upper right.
  • a battery chamber 7 for housing a fuel cell 6 is provided at the left end of the housing 2 (on the side opposite to the strobe 5 with respect to the lens barrel 3) in the figure.
  • An air hole 2 c communicating with the outside of the housing 2 is provided.
  • the battery chamber 7 has an opening 10 a for loading the fuel cell 6, a first position covering the opening 10 a, and the right end in the figure as a fulcrum.
  • a battery cover 10 is provided which is pivotable downward and is movable between a second position exposing the opening 10a. Further, the air intake / exhaust mechanism 8 communicates with the outside of the housing 2, and the passage of the air flowing between the air hole 2 a provided at the upper part of the battery chamber 7 and the air hole 2 c (air hole 2). a, the air pipe 2b, the battery chamber 7, and the passage leading to the air hole 2c) between the battery chamber 7 and the lens barrel 3.
  • the intake / exhaust mechanism 8 is provided with a pump chamber 8a.
  • a substantially closed space is formed with the wall surface 8n.
  • the pump chamber 8a moves by its own weight while being guided by the guide rod 8h, and the volume of the substantially closed space is changed.
  • a moving member 8b for changing the pressure is provided.
  • the pump chamber 8a is provided with an opening 8f communicating with the space of the battery chamber 7 and an opening 8d communicating with the air hole 2a, and the bottom of the pump chamber 8a is provided with an air hole 8k. ing.
  • the pump chamber 8a is divided by a moving member 8b having a weight 8j into a space 81 communicating with the openings 8d and 8f and a space 8m communicating with the air holes 8k.
  • a valve 8g that allows only the exhaust of air from the pump chamber 8a is provided, and at the position corresponding to the opening 8d, air is taken into the pump chamber 8a.
  • Each is provided with a valve 8e that allows only air.
  • the volume of the space 8 m below the moving member 8 b is reduced, so that the air in the space 8 m passes through the air holes 8 k and is exhausted to the outside of the pump chamber 8 a (inside of the housing 2). Is done. Also, at this time, the pressure in the battery chamber 7 is higher than the space 81 in the pump chamber 8a, so that the valve 8g remains closed.
  • the posture of the camera 1 is changed (for example, the camera 1 is in an inverted state), and the moving member 8 b to which the weight 8 j is bonded is moved in the direction of arrow B by its own weight. When it is moved (for convenience of explanation, FIG.
  • the volume of the space 81 decreases.
  • the air pressure in the space 81 rises, the intake valve 8e is closed because it is pressed leftward in the figure, and the valve 8g is opened because it is pressed leftward in the figure.
  • the air of 81 is exhausted into the battery chamber 7 through the opening 8 ⁇ .
  • the air outside the pump chamber 8 a inside the housing 2 is sucked into the space 8 m from the air hole 8 k.
  • the air from the intake / exhaust mechanism 8 exhausted into the battery chamber 7 is used for power generation of the fuel cell 6. Since the volume of the battery chamber 7 is constant, the air containing moisture discharged from the fuel cell 6 is discharged to the outside of the housing 2 through the air hole 2c.
  • a valve 8g that allows only air exhaust is provided at the position corresponding to the opening 8d
  • a valve 8e that allows only air intake at the position corresponding to the opening 8f. May be provided.
  • the space 8 1 As the pressure of the space 81 decreases, the pressure of the space 81 becomes lower than the pressure in the battery chamber 7, so that the valve 8e is opened rightward in FIG.
  • the air in the chamber 7 air containing water discharged from the fuel cell 6) is sucked into the space 81.
  • the pressure in the fuel cell chamber 7 decreases, and air is sucked into the cell chamber 7 from the air ⁇ ⁇ air holes 2 c outside the housing 2.
  • the air drawn into the battery chamber 7 is used for power generation of the fuel cell 6.
  • the moving member 8b moves, the volume of the space 8m decreases, so that the air in the space 8m passes through the air holes 8k and is exhausted to the outside of the pump chamber 8a (inside of the housing 2). You. Also, at this time, the pressure in the air pipe 2b (outside air) is higher than the pressure in the space 81, so that the valve 8g remains closed.
  • the posture of the camera 1 changes for example, the camera 1 becomes an inverted state
  • the moving member 8 b to which the weight 8 j is adhered moves in the direction of arrow B by its own weight, the space 16925
  • an air hole 10b may be provided in the battery cover 10 instead of the air hole 2c in FIG.
  • FIG. 7 shows another embodiment using the present invention. Components corresponding to those shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.
  • the pump chamber 8a has an opening 13d communicating with the air hole 2a and an opening 13f communicating with the space of the battery chamber 7 on the bottom surface.
  • the pump chamber 8a has a space 131, which communicates with the openings 8d and 8f, and a space 1 which communicates with the openings 13d and 13f, by a moving member 8b having a weight 8j. Divided into 3 m.
  • a valve 13e that allows only the intake of air to the pump chamber 8a corresponds to the opening 13f.
  • the position is provided with a valve 13g that allows only the exhaust of air from the pump chamber 8a.
  • the volume of the space 131 above the moving member 8b increases.
  • the air pressure in the space 1 3 1 drops, and the air outside the housing 2 is sucked into the housing 2, passes through the air pipe 2 b from the air hole 2 a, passes the valve 8 e, At the right side, and is sucked into the space 13 1 through the opening 8 d.
  • the volume of space 13 m is reduced.
  • the air pressure in the space 13 m rises, and the valve 13 e is pushed rightward in the figure.
  • the valve 13 g is closed because it is pressurized, and the valve 13 g is pressed leftward in the figure, so that the valve 13 g is opened, and the air in the space 13 m is exhausted into the battery chamber 7 through the opening 13 ⁇ . Also, at this time, the pressure in the battery chamber 7 is higher than the pressure in the space 81 of the pump chamber 8a, so that the valve 8g remains closed.
  • the volume of the space 1331 decreases.
  • the air pressure in the space 13 1 rises, the valve 8 e is closed because it is pressed to the left in the figure, and the valve 8 g is opened because it is pressed to the left in the figure.
  • 1 3 Air Force Exhaust into battery compartment 7 from opening 8 f.
  • the air pressure of the space 13 m decreases, air outside the housing 2 is sucked into the housing 2, and the air pipe 2 b passes through the air hole 2 a.
  • the valve 13 e is opened to the left, and the air is sucked into the space 13 m from the opening 13 d.
  • the valve 13 g remains closed because the pressure in the battery chamber 7 is higher than the space 13 m.
  • the air from the intake / exhaust mechanism 8 exhausted into the battery chamber 7 is used for power generation of the fuel cell 6. Since the volume of the battery chamber 7 is constant, the air containing moisture discharged from the fuel cell 6 is discharged to the outside of the housing 2 through the air hole 2c.
  • FIG. 8 shows another embodiment using the present invention. Parts corresponding to those shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.
  • the air hole 2 a is provided on the bottom surface of the housing 2 between the battery chamber 7 and the lens barrel 3 on the right side of the battery chamber 7 in the figure.
  • the moving member 8b has an opening 14b.
  • the pump chamber 8a is divided by the moving member 8b into a space 141 communicating with the opening 8f and a space 14m communicating with the opening 8d. Further, at a position corresponding to the opening 14b, there is provided a valve 14a that allows only the exhaust of the air in the space 14m into the space 141.
  • FIG. 9 The principle of supplying air into the battery chamber 7 using the intake / exhaust mechanism 8 will be described with reference to FIG. 9 and FIG.
  • the posture of the camera 1 changes and the weight 8 j is moved in the direction of the arrow A (downward in the figure) by the weight of the moving member 8 b with its own weight
  • the space 14 m volume is reduced.
  • the air pressure in the space 14 m rises, and the valve 8 e is closed because it is pressed rightward in the figure, and the valve 14 a is opened because it is pressed upward in the figure,
  • the air in the space 14 m is exhausted from the opening 14 b to the space 14 1 and exhausted to the battery compartment 7.
  • the volume of the space 141 increases, but the air corresponding to the increased volume is exhausted from the space 14 m, and the air pressure of the space 141 remains as it was. Air outside the housing 2 is not sucked in through the hole 2c, and air inside the battery chamber 7 is not exhausted outside the housing 2 through the air hole 2c. The air exhausted from the intake / exhaust mechanism 8 to the battery chamber 7 is used for power generation of the fuel cell 6.
  • the air pressure of the space 14 m decreases, and the air outside the housing 2 is sucked into the housing 2, and the air pipe 2 b passes through the air hole 2 a. Then, the valve 8e is opened to the left in FIG. 10, and air is drawn into the space 14m from the opening 8d.
  • FIGS. 5 to 8 a valve that permits only air exhaust may be a valve that permits only intake, and a valve that permits only air intake may be a valve that allows only exhaust.
  • a force lens that can supply air to the fuel cell by utilizing the sliding of the slide cover of the camera will be described.
  • FIG. 11 shows the configuration of a horizontal section in a state where the camera 101 to which the present invention is applied is in a non-operating state and the lens barrel 135 is housed in the camera 101.
  • a No. and ° Trone chamber 34 are provided on the left side of the lens barrel 135.
  • a patrone 102 is housed in the patrone chamber 134, and a film 136 pulled out of the patrone 102 is wound around a spool 133 of the film chamber 103. It is equipped.
  • a battery chamber 109 is provided on the left side of the patrone chamber 134 in the figure.
  • the fuel cell 107 is housed in the battery room 109, and the electric power from the fuel cell 107 is supplied to each unit that needs the electric power of the camera 101.
  • a slide cover 105 is provided on the front (lower side in the figure) of the camera 101 and in front of the lens barrel 135 in the housed state.
  • the slide cover 105 is provided by the user in a state shown in FIG. 14 described later (a state in which the lens barrel 135 is covered) and a state shown in FIG. 16 (a state in which the lens barrel 135 is exposed). ) And slide left and right in the figure.
  • the ventilation unit 106 includes a fan 13 2, a gear 13 33, and a shaft 18 1 (FIG. 18 described later), the description of which will be described later.
  • An air hole 13 1 is provided on the side of the camera cover 104 (the left side in the figure) so as to communicate with the battery room 109, and outside air is passed through the air hole 1 31 through the battery room. Flows in and out of 1 0 9.
  • a pipe 108 serving as an air passage is provided in parallel with the slide cover 105 on the lower side of the battery chamber 109 and the patrone chamber 134 in the drawing.
  • the pipe 108 is formed so as to communicate with the battery room 109.
  • an air hole 172 (FIG. 18 described later) is provided between the ventilation unit 106 and the slide cover 105.
  • the air hole 172 communicates with the pipe 108 and the outside.
  • FIG. 12 is a block diagram showing an example of an electrical configuration of the camera 101 of FIG.
  • the camera 101 includes a slide cover 105, a fuel cell 107, a switch 140, a microcomputer 141, a release button 142, a feeding motor 143, and a shutter 144.
  • the fuel cell 107 uses methanol as a fuel, utilizes oxygen in the air to generate energy, and supplies power to each part of the camera 101.
  • the switch 140 is turned on or off according to the slide position of the slide cover 105.
  • the release button 142 is operated by the user when operating the shirt 144.
  • the microcomputer 141 controls the operation of the camera based on the input from the switch 140 and the release button 142.
  • the feeding motor 143 performs a feeding process of winding or rewinding the film 136 by one frame.
  • the microcomputer 141 executes a process of photographing the subject. Specifically, the microcomputer 141 operates the shirt 144. The taking lens 110 included in the lens barrel 135 exposes the film 136 with light from the subject at the moment when the shutter 144 operates. After the completion of the shooting of one frame, the microcomputer 141 controls the feed motor 143 to transfer only one frame of the film 136 (the portion exposed by the shooting).
  • the subject can be photographed by the camera 101.
  • FIG. 13 shows a front configuration of the camera 101 in a non-operating state (a state in which the slide cover 105 is closed), and FIG. 14 shows a horizontal cross-sectional configuration of the camera 101 in FIG. ing.
  • FIG. 15 shows a front configuration of the camera 101 in an operating state (a state in which the slide cover 105 is opened).
  • FIG. 16 shows a horizontal cross-sectional configuration of the camera 101 in FIG. Is shown. In FIGS. 13 to 16, the hole 151 and the ventilation part 106 (the part indicated by the dotted line) are shown in perspective.
  • the slide cover 105 is an operation member operated by a user when preparing to shoot the camera 101. When slide cover 105 is closed as shown in Figure 13 (or Figure 14), camera 101 is inactive and slide cover 105 is shown in Figure 15 (or Figure 16). Camera 101 is activated when opened.
  • a hole 151 is formed near the right end of the slide cover 105 in FIG.
  • the hole 15 1 engages with the click 15 A formed on the right side of the lens barrel 135 of the camera cover 104 in the figure, and as shown in FIG. As shown in Figure 14, it is possible to keep it closed.
  • the slide cover 105 is opened to the state shown in FIGS. 15 and 16, the hole 15 1 is formed on the left side of the lens barrel 13 5 By engaging with 51B, it is possible to keep it open.
  • the slide cover 105 is moved by the user from the non-operation state of the camera 101 shown in FIGS. 13 and 14 to the operation state of the camera 101 shown in FIGS. 15 and 16. 1 «
  • the switch 140 in FIG. 12 detects that the slide cover 105 has been slid, and turns on.
  • the microcomputer 141 turns on the power when the switch 140 is turned on (power is supplied to each part from the fuel cell 107).
  • the microcomputer 14 1 controls, for example, to extend the lens barrel 13 5. As described above, in the state shown in FIGS. 15 and 16, when the release button 142 is operated, a photographing process is performed.
  • FIG. 17 shows the configuration of a vertical section from the front of the camera 101.
  • FIG. 18 shows, for example, the camera 101 of FIG. It shows the configuration of the vertical cross section as viewed from the side (103 side) (however, it is enlarged compared to Fig. 11).
  • Fig. 19 shows the configuration of the camera 101 of Fig. 11 in a vertical cross section (the surface of the slide cover 105 facing the camera cover 104) when viewed from the top of the figure. Is shown.
  • a ventilation section 106 is provided near the right end of the pipe 108 in FIG. 17, and a battery chamber 109 is provided at the left end of the pipe 108 in FIG.
  • the ventilation unit 106 is constituted by a fan 13 2, a gear 13 33, and an axis 18 1.
  • a rack 17 1 On the right side (inside of the camera 101) in Fig. 18 of the slide cover 105, a rack 17 1 is provided.
  • the rack 17 1 has a ventilation section 106 gear 1 3 3 Force S is engaged.
  • the gear 1 33 has a shaft 18 1 and a fan 13 2 mounted physically.
  • an air hole 172 is provided around the periphery (between the slide cover 105 and the ventilation section 106) to connect the pipe 108 to the outside of the camera 101. ing.
  • the outside air flows into the battery compartment 109 from the air hole 1311 by the rotation of the fan 1332.
  • the air in the space in the battery chamber 109 is discharged to the outside via the pipe 108 and the air hole 172.
  • the direction in which air flows can be opposite to that described above or can be bidirectional depending on the direction and shape of the fan 1332.
  • the slide cover 105 when the slide cover 105 is operated, the movement of the slide cover 105 is transmitted to the ventilation section 106, and the battery compartment 109 containing the fuel cell 107 is provided.
  • an air hole 131 which communicates with the outside, is provided, and the pipe 108 is connected so that the slide cover 105 is simply slid without any special operation. Air can be supplied to 107 simply and reliably.
  • the slide cover 105 is a member that is always operated when the camera 101 is used, so that the opportunity for ventilation can be reduced.
  • the slide cover 105 is operated by the user, the user is provided with an energy source for performing ventilation. Therefore, it is not necessary to use the power of the camera 101 (fuel cell 107), and the camera (fuel cell) is used as compared with the case where the fan 132 is rotated by the motor using the fuel cell 107.
  • the usable time of 107) can be extended.
  • the ventilation is performed by operating the slide cover 105 outside the camera cover 104.However, the present invention is not limited to this, and other operation members may be used. .
  • FIG. 20 shows a configuration of a horizontal section of a camera 201 to which the present invention is applied.
  • the internal body 203 is covered with a power S, an exterior cover 202, and a back cover 206.
  • a spool chamber 204 is formed on the right side.
  • a spool 220 is rotatably provided in the spool chamber 204.
  • a patrone room 205 is provided on the left side.
  • a film confirmation window 207 for visually confirming the presence or absence of the inserted patrone 230 is formed.
  • a back cover opening / closing key 208 is provided on the right side.
  • the back cover opening / closing key 208 is pressed, the back cover 206 is unlocked from the main body 203, and rotates clockwise about the hinge shaft 209 in FIG. Then, a film (not shown) can be mounted.
  • a lens barrel 2 16 is supported so as to be able to expand and contract.
  • a lens barrel motor 217 for driving the lens barrel 216 is disposed at the upper left of the rule chamber 204.
  • a place where the fuel cell 218 for supplying electric power to each part of the camera 201 is disposed in front of the spool chamber 204 (in the figure, above the spool chamber 204).
  • fuel cell 2 18 is shown as fuel cell 2 18 A).
  • the front of the trolley chamber 205 in the figure, above the patrone chamber 205 and the position where the fuel cell 218 is shown as the fuel cell 218 B
  • the lower side of the lens barrel 216 In the figure, the direction perpendicular to the paper plane of the lens barrel 2 16, and the position where the fuel cell 2 18 is shown as the fuel cell 2 18 C) or, in the figure of the patrone chamber 205,
  • the left side is possible.
  • the location of the fuel cell 218 may be any one of the four positions shown as fuel cells 218 A to 218 D, or two or more at the same time. In some cases, a fuel cell 218 may be arranged.
  • FIG. 21 shows a configuration of a cross section taken along line GG of FIG.
  • a lens barrel ⁇ box 235 is disposed between the spool chamber 204 and the patrone chamber 205.
  • a spool 220 for winding the film.
  • Each of the film chambers 205 houses a film cartridge 230.
  • the upper side of the spool 220 in the figure is supported by a spool retainer 221, and the lower side is supported by a gear base 222.
  • a motor 222 for winding or rewinding the film is disposed inside the spool 222, and is fixed to the gear stand 222 with screws 222A and screws 222B. ing.
  • the pinion 225 is press-fitted into the motor drive shaft 226 of the motor 223, and is driven to rotate by the motor 223.
  • a fork 231 for rewinding the film to the patrone 230 is disposed inside the trouné compartment 205. Throne 230 is engaged.
  • the fork 2 3 1 is attached to a fork gear 2 3 2, and is urged upward in the figure by an urging panel 2 3 3.
  • the fork 2 3 1 force moves downward in the figure against the urging force of the urging panel 2 33, and after the mounting is complete, the urging panel In accordance with the biasing force of 2 3 3, it moves upward in the figure to securely lock the patrone 230.
  • a gear holding plate 234 is disposed on the lower side of the main body 203 in the drawing. The gear holding plate 234 supports the fork gear 232 and a plurality of gears (not shown).
  • the autofocus element 236 at the upper left of the lens barrel ⁇ box 235 in the figure is an element for executing a detection process for autofocus.
  • the viewfinder 237 arranged on the right side of the autofocus element 236 in the figure is for the user to check the subject.
  • the right side of the viewfinder 237 in the figure emits light for illuminating the subject.
  • FIG. 22 is a block diagram showing an example of the electrical configuration of the camera 201.
  • the microcomputer 24 1 controls the operation of the camera 201.
  • the main switch 247 is turned on when the user uses the camera 201, and turned off when the user does not use the camera 201.
  • the power supply circuit 242 uses the electric power supplied from the fuel cell 218 to the voltage detection section 243, the microcomputer 241 and the motor drive circuit 246. , And to the motor 2 2 3.
  • the voltage detection section 243 measures the voltage of the fuel cell 218 based on the instruction of the microphone port computer 241, and outputs the measurement result to the microcomputer 241.
  • the display unit 244 displays the number of films / remaining battery power under the control of the microcomputer 241.
  • the sensor section 245 is a sensor such as an autofocus element 236 (FIG. 21), and outputs a detected result to the microcomputer 241.
  • the motor drive circuit 246 drives the motor 223 under the control of the microcomputer 241.
  • the motor 223 is driven by a motor drive circuit 246 to wind or rewind the film.
  • PT / JP2003 / 016925 Next, an air supply process to the fuel cell 2 18 will be described with reference to a flowchart of FIG. This process is performed periodically, for example, every hour.
  • step S1 the microcomputer 241 determines whether the camera 201 is in use. This determination is made based on whether or not the main switch 247 is ON. When it is determined that the camera 201 is in use (when the main switch 247 is turned on) ', the air supply processing ends because there is no need to supply air to the fuel cell 218. I do. When it is determined that the camera 201 is not in use (when the main switch 247 is turned off), the microcomputer 241 advances the processing to step S2.
  • step S2 the microcomputer 241 controls the voltage detector 243 to measure the voltage of the fuel cell 218.
  • step S3 the microcomputer 2 4 1, as shown in FIG. 2 4, the voltage V B of the fuel cell 2 1 8 measured in step S 2 is located at a predetermined reference value or more T that is set in advance Is determined. If it is determined that the voltage V B power predetermined reference value TH r of the fuel cell 2 1 8, the air supply process since there is no need to supply air to the fuel cell 2 1 8 ends. If it is determined that the measured voltage VB of the fuel cell 218 is smaller than the reference value, the microcomputer 241 advances the process to step S4.
  • step S4 the microcomputer 241 displays a message prompting a manual operation for increasing the fuel cell output.
  • This display may be performed, for example, by displaying a predetermined mark on a liquid crystal display screen constituting the display unit 244, or by turning on an LED (Light Eratting Diode). .
  • step S5 when the user visually recognizes the display by the processing in step S4, the user manually turns the spool 220 or the fork gear 2332.
  • the spool 220 or the fork gear 232 is in a free state, and the selected one can be manually rotated as necessary. I have.
  • This rotation causes the fan to supply air to the fuel cell 218 (see Figure 25 below).
  • the air is transmitted to the fan 255A), and the fan rotates to supply air to the fuel cell 218.
  • the voltage V B of the fuel cell 2 18 becomes equal to or higher than the reference value ⁇ ⁇ .
  • FIG. 25 shows the configuration of the section taken along the line ⁇ - ⁇ of FIG. 20, and the fuel cell 218 is disposed at the position shown as the fuel cell 218 ⁇ on the front side (the left side in FIG. 25) of the spool chamber 204. Shall be.
  • the scale in FIG. 25 is larger than in FIG.
  • a spool 220 is disposed in the spool chamber 204.
  • a motor 223 is disposed inside the spool 220, and a pinion 225 is press-fitted into the motor drive shaft 226.
  • the rotation of the motor 223 is transmitted from the gear 25 1 ⁇ through the gear train, the gear 25 1 ⁇ coaxially through the gear shaft 25 2 with the gear 25 1A, and the gear 251B.
  • the power is transmitted to the gear 25 3 ⁇ and the gear 25 3 ⁇ integrated with the gear 25 3 ⁇ through the gear train.
  • the gear 253 engages with the spoonor 220 to rotate the spool 220. As the spool 220 rotates, the film is wound up.
  • the gear 253 also meshes with the fan gear 255, and is driven by the motor 223.
  • a fan 255 ⁇ for sending air to the fuel cell 218 ⁇ is formed at the tip of the fan gear 255 5.
  • the fan gear 255 rotates, the fan 255 ⁇ supplies air to the fuel cell 218 ⁇ .
  • the fuel cell 218 ⁇ is housed in the battery chamber 261A, and an air hole 262 ⁇ is formed in the battery chamber 261A on the side facing the fan 255 ⁇ .
  • the rotation of the motor 223 is transmitted to the fan gear 255, and the fan 255A formed integrally with the fan gear 255 is driven.
  • the air blown from the rotating fan 255A is supplied to the fuel cell 218A through the air hole 262A. It is. By blowing air to the fuel cell 218 A, the output of the fuel cell 218 A can be increased.
  • the gear 267 is a planetary gear connected to the gear 266B by a planetary coupling plate 268.When the gear 266B rotates to CW, the planetary gear 267 attached to the planetary coupling plate 268 rotates to CCW, Move to the position shown as gear 267B and engage gear 253A.
  • the fan gear 255 that is integrally connected to the fan 255 A (FIG. 25) that blows air to the fuel cell 2 18 A (FIG. 25) is combined with the gear 2553 B. Therefore, when gear 25 3 B rotates to CW, fan gear 2.55 rotates to CCW.
  • the fan gear 255 also rotates at the same time, and air is supplied to the fuel cell 218A.
  • the planetary gear 267 moves to the position shown as the planetary gear 267 A by reversing the rotation direction.
  • the gear 25 is manually rotated by rotating the spool 220.
  • the fan gear 255 By rotating the fan gear 255 through 3B, it is possible to blow air to the fuel cell 218A.
  • FIG. 27 is a cross-sectional view taken along the line FF of FIG. 20. However, the scale is larger than that in FIG.
  • the driving force of the motor 222 (FIG. 21) is transmitted to the gear 277 via a gear train described later with reference to FIG.
  • the gear 2 7 7 is driven, the combined fork gear 2 3 2 rotates, and the fork 2 3 1 attached to the fork gear 2 3 2 and urged by the urging spring 2 3 3 rotates.
  • the patrone 230 rotates, and the film is wound up.
  • the fuel cell 218B is housed in the battery chamber 261B, and an air hole 262B is formed on the side of the battery chamber 261B facing the fan 278A. Therefore, the air blown from the fan 278A passes through the air hole 262B and is supplied to the fuel cell 218B.
  • gear 265A Since the gear 265A is combined with the pinion 225, when the pinion 225 rotates to CW, the gear 265A rotates to CCW. In addition, gear 265B coaxial with gear 265A also rotates CCW.
  • the gear 251A is combined with the gear 265B, when the gear 265B rotates to CCW, the gear 251A rotates to CW. Also, the gear 25 1B coaxial with the gear 25 1A rotates CW. Since the gear 266A is combined with the gear 251B, when the gear 251B rotates to CW, the gear 266A rotates to CCW. The gear 266B coaxial with the gear 2 66A also rotates CCW.
  • the gear 272A is engaged with the gear 271, when the gear 271 rotates to CCW, the gear 272A rotates to CW. Also, the gear 272B coaxial with the gear 272A also rotates. Since the gear 273 is engaged with the gear 2 72B, when the gear 2 72B rotates to CW, the gear 273 rotates to CCW. Since the gear 274 is combined with the gear 273, when the gear 27 rotates to the third force S CCW, the gear 274 rotates to the CT. T JP2003 / 016925 Since the gear 275 is combined with the gear 274, when the gear 274 rotates to CW, the gear 275 rotates to CCW.
  • gear 277 is also combined with fan gear 278, when gear 277 rotates to CCW, fan gear 278 rotates to CW and fuel cell 218B (Fig. 27) ).
  • FIG. 29 shows the lower configuration when the configuration of the cross section taken along the line GG of FIG. 20 is divided into upper and lower parts. However, the scale is larger than in FIG.
  • the film 280 to which the film roller 281 is pressed is fed by the film roller 281 when the motor 223 (FIG. 21) rotates.
  • a roller gear 282 is press-fitted into the finolem roller 281, and the upper part of the finolem roller 281 is supported by the main body 203, and the lower part thereof is supported by the gear base 283. 5
  • the urging spring 284 attached to the back cover 206 presses the film 280 against the film roller 281.
  • the roller gear 282 Since the roller gear 282 is combined with the fan gear 285, when the roller gear 282 rotates, the fan gear 285 rotates.
  • the movement of the fan gear 285 in the upward direction in the figure (thrust direction) is regulated by the gear holding plate 234. Since the fan 285 A is integrally connected to the fan gear 285, when the fan gear 285 rotates, the fan 285 A rotates.
  • a battery compartment 2 61 C with an air hole 2 62 C is arranged, and a fuel cell 2 18 C is housed inside the battery compartment 26 1 C. ing.
  • each gear is different depending on whether the film 280 is wound up or rewound. Therefore, in either one of the winding up and the rewinding, the air is blown to the fuel cell 218C. Can not.
  • the fuel cell can be moved in both the winding and rewind directions. It is possible to send air to 2 18 C.
  • the fan gear 285 may be rotated by integrating the fan shaft 285 with the gear shaft 272C of the gear 272A and the gear 272B.
  • the example in which the fan gear 285 is driven by using the driving force supplied through the film 280 has been described, but the drive of the lens barrel motor 217 (FIG. 20) is described.
  • the fan gear 285 may be driven using motive power.
  • 03 016925 When driving the fan gear using the driving force of the lens barrel motor 2 1 7 (Fig. 20), the driving force can be transmitted from the lens barrel gear 2886 to rotate the fan gear 285.
  • the lens barrel gear 286 is pivotally supported by a lens barrel dark box 235 and a lens barrel gear retainer 287.
  • FIG. 30 is a block diagram showing the configuration of an embodiment of the camera 330 of the present invention.
  • a CPU (Central Processing Unit) 301 that supervises the control operation of the camera 330 includes, as switches, a main switch (power supply) operated when starting an imaging operation (turning on the power). Switch) 3 0 5, Release button 3 0 6 operated when actuating the shutter button, Half-press switch 3 0 7 which is turned on when the half-pressed state of release button 3 0 6 is detected, and Release button 3 0 6 Release switch 308, which turns on when a full-press state is detected, is connected.
  • the CPU 301 is supplied with the output of a lens barrel position detecting unit 320 for detecting the position of the lens barrel and the output of a voltage detecting unit 3221 for detecting the voltage of the fuel cell 3222. It is like that.
  • the CPU 301 has a ROM (Read-only Memory) 302, an EEPR0M (Electrically Erasable Programmable Read-Only Memory) 303, a liquid crystal display section 304, an imaging section 309, a lens barrel Drive unit 3 10, photometry unit 3 12, distance measurement unit 3 13, feeding unit 3 14, shutter drive unit 3 16, strobe drive unit 3 17, and fan drive unit 3 18 are connected Have been.
  • ROM Read-only Memory
  • EEPR0M Electrical Erasable Programmable Read-Only Memory
  • the ROM 302 stores basically fixed data of programs used by the CPU 301 and parameters for calculation.
  • the EEPR0M303 is a nonvolatile memory that can be electrically rewritten and erased, and records data that needs to be retained even after the power is turned off.
  • the liquid crystal display section 304 is arranged on the camera (main body), and displays necessary information according to the output signal from the CPU 301.
  • the imaging unit 309 captures an image of a subject via the lens 343 shown in FIG. 31 and exposes the film.
  • a motor 311 for driving a lens barrel 3 4 2 (FIG. 3 1) that accommodates the lens 3 4 3 is connected to the lens barrel drive section 3 10.
  • the lens barrel 3 4 2 is driven at an appropriate timing.
  • the photometric unit 312 measures the brightness of the subject at the required timing according to the instruction of the CPU 301, and transfers the measurement result to the CPU 301.
  • the distance measuring unit 313 measures the distance to the subject at a necessary timing according to the instruction of the CPU 301, and transfers the distance measurement result to the CPU 301.
  • a motor 315 is connected to the feeding unit 314, and the film is wound up by one frame or rewound to a patrone (not shown) by the instruction of the CPU 301. Perform feed processing.
  • the shirt drive unit 316 drives a shirt (not shown) in response to a command from the CPU 301.
  • the stop port drive unit 317 drives a strobe (not shown) in response to a command from the CPU 301.
  • a motor 319 is connected to the fan drive unit 318, and rotates an electric fan 319A for sending air to the fuel cell 322 according to an instruction from the CPU 301.
  • a fuel cell is a type of generator that produces electricity by reacting hydrogen extracted from natural gas and oxygen with oxygen. Its structure is, for example, a structure in which fine particles of carbon are coated with platinum catalyst powder on a polymer film, and the polymer film is sandwiched between two electrodes. . One of the two spaces formed between the polymer membrane and the electrode is filled with natural gas such as methanol, and the other space is open to the atmosphere. When natural gas such as methanol comes into contact with platinum and is decomposed, hydrogen ions are generated.
  • the generated hydrogen ions pass through the polymer membrane, reach the electrode on the opposite side, and react with oxygen in the air to generate electricity. I Therefore, oxygen is supplied by rotating the electric fan 3 19 mm and blowing air to the fuel cell 322, thereby generating new electric power.
  • CPU 301 CPU 301, LCD display unit 304, imaging unit 309, lens barrel drive unit 3 10, photometry unit 3 12, distance measurement unit 3 13, feed unit 3 1 4, shutter drive unit 3 16, shutter port
  • the driving unit 317, the fan driving unit 318, the lens barrel position detection unit 320, the voltage detection unit 321, and the like are supplied with necessary power from the fuel cell 322.
  • FIG. 31 is a diagram showing a schematic configuration of the camera body 341.
  • a lens barrel 342 having a lens 343 is provided in the camera body 341.
  • the lens barrel 342 is moved in the left-right direction in the figure when the lens barrel drive unit 310 (FIG. 30) drives the motor 311 (FIG. 30).
  • the amount of drive of the lens barrel 342 at this time is detected by a lens barrel position detection unit 320 (FIG. 30) provided in the force camera main body 341.
  • the CPU 301 controls the voltage detection unit 321 to execute a no-load battery check of the fuel cell 322 in step S101.
  • the no-load battery check is a check for determining whether or not the fuel cell 322 has enough electric power to rotate the electric fan 319A.
  • the CPU 301 determines whether or not the voltage of the fuel cell 322 detected by the voltage detector 321 in the process of step S101 is equal to or higher than the reference voltage TH1.
  • the reference voltage TH1 is a voltage that is used as a reference for determining whether or not the fuel cell 322 has sufficient power to rotate the electric fan 319A.
  • step S102 when it is determined that the voltage of the fuel cell 322 is not equal to or higher than the reference voltage TH1, the process proceeds to step S109, and the CPU 301 displays a message indicating "battery remaining NG" A message is displayed, and the processing when the main switch 305 is turned on ends.
  • the fuel cell Five the fuel cell Five
  • a message such as "Please fill with methanol" may be displayed on the liquid crystal display 304.
  • step S102 When it is determined in step S102 that the voltage of the fuel cell 322 is equal to or higher than the reference voltage TH1, the process proceeds to step S103, in which the CPU 301 controls the fan drive unit 318 to control the electric fan 319A. Start rotation.
  • step S104 the CPU 301 controls the voltage detection unit 321 to execute a loaded battery check of the fuel cell 322.
  • the loaded battery check is a check for detecting the voltage of the fuel cell 322 while the electric fan 319A is rotating.
  • step S105 the CPU 301 determines whether or not the voltage of the fuel cell 322 detected by the voltage detection unit 321 in the process of step S104 is equal to or higher than the reference voltage TH2.
  • the reference voltage TH2 is a reference voltage corresponding to the remaining amount that can guarantee the correct operation of the camera 330 of the fuel cell 322, and is set to a value higher than the reference voltage TH1 (see FIG. 34).
  • step S105 when it is determined that the voltage of the fuel cell 322 is equal to or higher than the reference voltage TH2, the process proceeds to step S106, and the CPU 301 displays a message of "battery remaining 0K" on the liquid crystal display unit 3 ⁇ 4. Is displayed. If it is determined in step S105 that the voltage of the fuel cell 322 is not equal to or higher than the reference voltage TH2, the process proceeds to step S107, and the CPU 301 executes the voltage detection unit 3 2 1 in the processing of step S104. It is determined whether the voltage of the fuel cell 322 detected by the above is not less than the reference voltage TH3.
  • the reference voltage TH3 is a reference voltage corresponding to the minimum remaining amount that can guarantee the correct operation of the camera 330 of the fuel cell 322.
  • the reference voltage TH3 is higher than the reference voltage TH1 and lower than the reference voltage TH2 ( See Figure 34).
  • step S107 When it is determined in step S107 that the voltage of the fuel cell 322 is equal to or higher than the reference voltage TH3, the process proceeds to step S108, in which the CPU 301
  • step S107 If it is determined in step S107 that the voltage of the fuel cell 322 is smaller than the reference voltage TH3, Proceeding to step S109, the CPU 301 displays a message of "battery remaining NG" on the liquid crystal display section 304, and ends the processing when the main switch 205 is turned on. .
  • the relationship between the voltage of the fuel cell 32 and the reference voltages TH1, TH2, and TH3 is shown in FIG. If the voltage of the fuel cell 3222 is equal to or less than the reference voltage TH1, the electric fan 319A cannot be rotated.
  • the electric fan 3 19 A can be rotated, but the camera 3 30 cannot operate. Can not. If the voltage of the fuel cell 3 22 is equal to or higher than the reference voltage TH 3 and equal to or lower than the reference voltage TH 2, the electric fan 3 19 A can be rotated. The minimum power remaining to guarantee the correct operation of the camera 330 remains. If the voltage of the fuel cell 3 22 is equal to or higher than the reference voltage TH 2, the fuel cell 3 22 has power remaining to ensure the correct operation of the camera 3 30.
  • step SI 10 the CPU 310 controls the lens barrel drive unit 3 10 to drive the motor 3 11 and move the lens barrel 3 42 to the wide end. Processing).
  • step SI10 when the extension process of the lens barrel 342 is completed, in step S111, the CPU 301 controls the strobe drive unit 317, and stores the strobe light into the built-in capacitor. Start charging.
  • step S112 the CPU 301 determines whether or not charging of the flash has been completed. If it is not determined in step SI12 that the charging of the strobe has been completed, the process returns to step S111.
  • step S112 When it is determined in step S112 that the charging of the strobe is completed, the process proceeds to step S113, where the CPU 301 controls the stop port driving unit 3117 to stop the strobe. Stop charging the mouth.
  • step S113 the CPU 301 controls the stop port driving unit 3117 to stop the strobe. Stop charging the mouth.
  • step S114 the CPU 301 controls the voltage detection unit 321 to execute a loaded battery check of the fuel cell 322.
  • step SI15 the CPU 301 converts the voltage of the fuel cell 322 detected by the voltage detector 321 in the processing of step S104 and the fuel detected by the voltage detector 321 in the processing of step S114. Based on the voltage of the battery 322, the time for continuing the rotation of the electric fan 319A started in the process of step S103 (the time for energizing the motor 319 for rotating the electric fan) is calculated. .
  • the calculation of the time to further continue the rotation of the electric fan 319A is performed, for example, by calculating the voltage of the fuel cell 322 detected by the voltage detection unit 321 in the process of step S104 and the voltage detection in the process of step S114. This is performed based on the difference between the voltage of the fuel cell 322 and the voltage detected by the unit 321. In this case, in other words, the amount of power consumed during the process from step S104 to the process at step SI14 (the process for extending the lens barrel 342 at step SI10 and the flash charging process at step S11) is calculated as follows. The time required for recovery is calculated as the time for continuing the rotation of the electric fan 319A.
  • Time is calculated based on the ratio.
  • the fuel detected in the process of step S114 is determined.
  • the rotation of the electric fan 319A is defined as the time required for the voltage occupied by the battery 322 to return to the original value (that is, the time required for the voltage of the fuel cell 322 to become equal to the value detected in the processing in step S104). The time to further continue is calculated.
  • the calculation of the time for further continuing the rotation of the electric fan 319A is performed by calculating the voltage of the fuel cell 322 detected by the voltage detection unit 321 in the process of step S104, and T JP2003 / 016925
  • the calculation may be performed by a program stored in advance in the EEPR0M303 based on the voltage of the fuel cell 322 detected by the voltage detection unit 321 in the process of step SI14.
  • step SI16 the CPU 301 determines whether or not the predetermined time calculated in step SI15 has elapsed.
  • step SI 16 If it is not determined in step SI 16 that the predetermined time has elapsed, the process waits until the predetermined time has elapsed, and if it is determined that the predetermined time has elapsed, the process proceeds to step SI 17 .
  • step SI17 the CPU 301 controls the end drive unit 318 to stop the rotation of the electric fan 319A, and performs a process when the main switch 305 is turned on. finish.
  • step S201 the CPU 301 determines whether or not the camera 330 is in a standby mode. If it is determined in step S201 that the camera 330 is in the standby mode, the process proceeds to step S202, where the CPU 301 controls the voltage detection unit 3 2 1 and the fuel cell 3 2 Execute the no-load battery check of step 2.
  • the no-load battery check is a check for determining whether there is enough electric power to rotate the electric fan 319 A. That is, this process is the same as the process of step S101 in FIG.
  • step S203 the CPU 301 determines whether or not the voltage of the fuel cell 322 detected by the voltage detector 3221 in the process of step S202 is equal to or higher than the reference voltage TH1. judge.
  • the reference voltage TH1 is a voltage used as a reference for determining whether or not there is enough power to rotate the electric fan 319A.
  • step S203 If it is determined in step S203 that the voltage of the fuel cell 3222 is not equal to or higher than the reference voltage TH1, the process proceeds to step S210, and the CPU 301 displays the liquid crystal display section 304 Message ⁇ Battery level NG '' appears on the main switch, and the main switch 00 hired 6925
  • step S203 When it is determined in step S203 that the voltage of the fuel cell 322 is equal to or higher than the reference voltage TH1, or in step S201, the camera 330 is not in the standby mode, that is, If the electric fan 3 19 A is rotating while the lens barrel 3 4 2 is being driven and the mouthpiece port is charging, and it is not necessary to execute the no-load battery check, the process proceeds to step S 204 and the CPU 3 0 1 starts the rotation of the electric fan 3 19 A.
  • step S205 the CPU 301 controls the voltage detector 321 to execute a loaded battery check of the fuel cell 322.
  • the loaded battery check is a check for detecting the voltage of the fuel cell 3222 with the electric fan 319 A rotating.
  • step S206 the CPU 301 determines whether or not the voltage of the fuel cell 322 detected by the voltage detector 3221 in the processing of step S205 is equal to or higher than the reference voltage TH2. judge.
  • the reference voltage TH2 is a reference voltage corresponding to the remaining amount that can guarantee the correct operation of the camera of the fuel cell 322, and is set to a value larger than the reference voltage TH1.
  • step S206 when it is determined that the voltage of the fuel cell 3222 is equal to or higher than the reference voltage TH2, the process proceeds to step S207, and the CPU 301 displays the liquid crystal display section 304. "Display the message of the battery level 0KJ.
  • step S206 If it is determined in step S206 that the voltage of the fuel cell 322 is not equal to or higher than the reference voltage TH2, the process proceeds to step S208.
  • the CPU 301 determines whether or not the voltage of the fuel cell 3222 detected by the voltage detection unit 3221 in the process of step S205 is equal to or higher than the reference voltage TH3. This is a reference voltage corresponding to the minimum remaining amount that can guarantee the correct operation of the camera 330 of the fuel cell 32 2.
  • the reference voltage is higher than the reference voltage TH 1 and lower than the reference voltage TH 2.
  • step S208 If it is determined in step S208 that the voltage of the fuel cell 3222 is equal to or higher than the reference voltage TH3, the process proceeds to step S209, and the CPU 310 displays the liquid crystal display section 304. Display the message "Battery level warning". When it is determined in step S208 that the voltage of the fuel cell 3222 is smaller than the reference voltage TH3, the process proceeds to step S210, and the CPU 301 displays the liquid crystal display section 304. A message of "battery remaining NG" is displayed, and the process when the main switch 205 is turned off is terminated. As described above, in steps S202 to S210, the same processing as steps S101 to S109 when the main switch 305 in FIG. 32 is turned on is performed. Processing is executed.
  • step S211 the CPU 301 controls the lens barrel driving section 310 to drive the motor 311 and Move the cylinder 342 to the retracted position (retracting the lens barrel 342).
  • step S213 the CPU 301 sets the voltage of the fuel cell 322 detected by the voltage detection unit 321 in the processing of step S205 and the voltage of the fuel cell 322 in the processing of step S221. Based on the voltage of the fuel cell 3222 detected by the detection section 3221, the time for further continuing the rotation of the electric fan 319A whose rotation has been started in the process of step S204 (electrically driven) Calculate the energization time to the motor 3 19 that rotates the fan).
  • the calculation of the time to continue the rotation of the electric fan 3 19 A further depends on the voltage of the fuel cell 3 22 detected by the voltage detector 3 21 in the processing of step S 205 and the step S 2
  • the processing can be performed based on the difference between the voltage of the fuel cell 322 and the voltage of the fuel cell 322 detected by the voltage detection unit 321 in the processing of 12. That is, the time required to recover the amount of power consumed between the processing in step S205 and the processing in step S212 (the reversing processing of the lens barrel 342 in step S211).
  • a time period during which the rotation of the electric fan 3 19 A is further continued may be calculated.
  • the rotation of the electric fan 3 19 A is further continued as the time from the ratio of the detected voltage of the fuel cell 322 to the ratio of the detected voltage of the fuel cell 322 in step S212 to the original value. You may calculate the time to do it.
  • the calculation of the time to further continue the rotation of the electric fan 319A is performed by calculating the voltage of the fuel cell 322 detected by the voltage detecting unit 321 in the process of step S205 and the voltage in the process of step S212.
  • the calculation may be performed by a program stored in the EEPR0M303 based on the voltage of the fuel cell 322 detected by the detection unit 321.
  • step S214 the CPU 301 determines whether or not the predetermined time calculated in step S213 has elapsed.
  • step S214 If it is not determined in step S214 that the predetermined time has elapsed, the process waits until the predetermined time has elapsed. If it is determined that the predetermined time has elapsed, the process proceeds to step S215.
  • step S215 the CPU 301 controls the fan drive unit 318 to stop the rotation of the electric fan 319A started in the process of step S204, and the CPU 301 executes the process when the main switch 305 is turned off. The process ends.
  • steps S301 to S309 the same processing as the processing in steps S101 to S109 when the main switch 305 in FIG. 32 is turned on (therefore, the processing in steps S202 to S210 in FIG. 35) is executed. You. The description is omitted because it is repeated. TJP2003 / 016925
  • step S310 the CPU 301 stops the rotation of the electric fan 319A started in the processing in step S303.
  • step S311 the CPU 301 monitors the output of the strobe drive section 317 to determine whether or not the strobe charging voltage is sufficient.
  • step S311 If it is determined in step S311 that the strobe charging voltage is insufficient, the process proceeds to step S315, and the CPU 301 causes the liquid crystal display unit 304 to display a message of "uncharge warning J". If it is determined in step S311 that the flash charging voltage is sufficient, the process proceeds to step S312, in which the CPU 301 executes a distance measurement process.
  • a distance measurement start control signal is sent to 3 13. In response to this, the distance measurement section 3133 starts the distance measurement processing, although details of the distance measurement processing are omitted, but when the distance measurement is completed, the distance measurement section 3 13 outputs the distance measurement result to the CPU 301.
  • step S313 the CPU 301 sends a control signal to the photometry section 312 to execute photometry processing. Although the details of the photometric processing are omitted, the photometric unit 312 calculates the brightness of the subject from the amount of light input to the internal light receiving element, and obtains the opening time of the shirt. At the same time, it determines whether or not the brightness is low, and determines whether or not flash emission is required. In step S314, the CPU 301 causes the liquid crystal display unit 304 to display the result of the flash charging and the result of the distance measurement process.
  • step S314 or step S315 the process proceeds to step S316, where the CPU 301 determines whether the half-press switch 307 has been turned off.
  • step S316 If it is not determined in step S316 that the half-push switch 307 has been turned off, the process waits until it is turned off. If it is determined in step S316 that the half-press switch 307 has been turned off, the process proceeds to step S317.
  • step S317 the CPU 301 causes the display of the result of the stop button charging and the result of the distance measurement process started in the process of step S314 to be stopped. Thereafter, in steps S318 to S321, the same processing as the processing in steps SI14 to SI17 in FIG. 33 is executed. The description is omitted because it is repeated.
  • step S401 the CPU 301 controls the fan drive section 3 18 Energize 3 19 and rotate the electric fan 3 19A.
  • step S402 the CPU 301 drives the motor 311 via the lens barrel drive unit 310 to drive the lens barrel 342 to the focusing destination.
  • step S403 the shutter is opened and closed, and if it is necessary to use the strobe at the same time, the strobe is driven. That is, at this time, the CPU 301 controls the shutter driver 316 to operate the shutter for a predetermined time. At this time, the CPU 301 controls the flash drive unit 3 17 to emit a flash as necessary.
  • step S404 the CPU 301 drives the motor 311 via the lens barrel drive unit 310 to return the lens barrel 342 to the standby position.
  • step S405 the CPU 301 controls the feeding unit 314 to drive the motor 315 to feed one frame of the film.
  • step S 406 the CPU 301 controls the flash drive unit 317 to charge the flash in preparation for the next photographing.
  • step S407 the CPU 301 determines whether or not the flash has been charged. If it is not determined in step S407 that the charging of the strobe is completed, the process returns to step S406. If it is determined in step S407 that the charging of the strobe is completed, the process proceeds to step S408, in which the CPU 301 stops the charging of the strobe, and proceeds to step S409.
  • step S408 the CPU 301 stops the charging of the strobe, and proceeds to step S409.
  • the subsequent processing from step S409 to step S410 is the same as the processing from step S114 to step SI17 when the main switch 305 in Fig. 33 is turned on. Here, the description is omitted.
  • the time for continuously blowing air is determined based on the voltage of the fuel cell before and after the predetermined operation, so that the power is reliably supplied from the fuel cell during use. It becomes possible.
  • air is supplied to the fuel cell by driving the lens barrel of the camera, and when the lens barrel is not driven, an electric fan that sends air to the fuel cell is used to supply air to the fuel cell.
  • An embodiment of a camera capable of supplying air to the camera will be described.
  • FIG. 40 is a block diagram showing the configuration of an embodiment of the camera 43 of the present invention.
  • a CPU (Central Processing Unit) 401 that controls the control operation of the camera 430 includes, as switches, a main switch (power supply) operated when starting an imaging operation (turning on the power).
  • Switch) 405 the release button 406 operated when the shutter button is operated, the half-press switch 407 which is turned on when the half-pressed state of the release button 406 is detected, and the release button 406 Release switch 408, which turns on when a full-press state is detected, is connected.
  • the output of the lens barrel position detecting section 420 detecting the position of the lens barrel and the output of the voltage detecting section 4221 detecting the voltage of the fuel cell 42 2 are supplied to the CPU 401. It is like that.
  • the CPU 401 has ROM (Read-only Memory) 402, EEPR0M (Electrically Erasable Programmable Read-Only Memory) 403, liquid crystal display ⁇ 404, imaging unit 409, lens barrel
  • ROM Read-only Memory
  • EEPR0M Electrical Erasable Programmable Read-Only Memory
  • liquid crystal display ⁇ 404 imaging unit 409
  • lens barrel The drive unit 4 10, the photometry unit 4 12, the distance measurement unit 4 13, the feeding unit 4 14, the shutter drive unit 4 16, the dropout drive unit 4 17, and the fan drive unit 4 18 are connected. ing.
  • the ROM 402 stores basically fixed data of programs used by the CPU 410 and parameters for calculation. TJP2003 / 016925
  • the EEPROM 403 is a nonvolatile memory that can be electrically rewritten and erased, and records data that needs to be retained even after the power is turned off. In this example, for example, the time for rotating the fan is stored.
  • the liquid crystal display unit 404 is arranged on the camera (body), and displays necessary information according to an output signal from the CPU 401.
  • An imaging unit 409 captures an image of a subject via a lens 443 shown in FIG. 41, and exposes the film.
  • a motor 411 for driving a lens barrel 442 (FIG. 41) containing a lens 443 is connected to the lens barrel drive unit 410, and the lens barrel 442 is driven at a required timing according to an instruction from the CPU 401. I do.
  • the photometry unit 412 measures the brightness of the subject at a necessary timing according to an instruction from the CPU 401, and transfers the measurement result to the CPU 401.
  • the distance measuring unit 413 measures the distance to the subject at a necessary timing according to an instruction from the CPU 401, and transfers the distance measurement result to the CPU 401.
  • a motor 415 is connected to the feeding unit 414, and performs a film feeding process such as winding the film one frame or rewinding the film to a patrone (not shown) according to an instruction of the CPU 401. Do.
  • the shirt drive section 4 16 drives a shirt (not shown) in response to a command from the CPU 401.
  • the strobe drive unit 417 drives a strobe (not shown) in response to a command from the CPU 401.
  • a motor 419 is connected to the fan drive section 418, and rotates an electric fan 419 A for sending air to the fuel cell 422 according to an instruction from the CPU 401.
  • FIG. 41 is a diagram showing a schematic configuration of the lens barrel position detection unit 420.
  • a lens barrel 442 having a lens 443 is provided in a camera body 441.
  • the lens barrel 4 42 is moved in the left and right direction in the figure when the lens barrel drive unit 4 10 drives the motor 4 11 (FIG. 40).
  • the driving amount of the lens barrel 442 at this time is detected by a photosensor 451 provided in the camera body 441.
  • the photo sensor 45 1 includes a light shielding blade 45 2 and a sensor 45 4.
  • the light-shielding blades 452 have a disk shape, and rectangular slits 453 are provided on the outer circumference of the disk surface at equal intervals in the circumferential direction.
  • the sensor 455 has a U-shaped cross section, and has a pair of light-transmitting parts (not shown) and a light-receiving part (not shown) facing each other inside the legs 455 and 456. (Not shown).
  • the light-shielding blades 45 2 are inserted into the gap between the legs 45 5 and 45 6 of the sensor 45 4 so that they do not come into contact with the legs 45 5 and 45 6 respectively. Have been.
  • the light-shielding blades 45 2 are linked with a motor 4 11 that drives the lens barrel 4 42, and rotate with the movement of the lens barrel 4 42.
  • the number of rotations of the light-shielding blade 4552 is calculated by counting the number of pulses. can do. Further, since the light-shielding blade 4 52 is linked with the motor 4 1 1 for driving the lens barrel 4 4 2, the sensor 4 5 determines the gear ratio of the motor 4 11 from the rotation amount of the light-shielding blade 4 5 2. The amount of drive of the lens barrel 442 can be calculated by performing back calculation from the amount of rotation and the like. As shown in FIG.
  • fans 461, 462, and 463 for blowing air are provided with the light-shielding blades 452.
  • Fans 4 61, 4 62 and 4 63 (hereinafter collectively referred to as fan 4 60 as required) have their outer peripheral portions partially fixed to light-shielding blades 45 2 respectively. And rotates integrally with the shading blades 4 52. The wind generated by the rotation of the fan 460 is supplied to the fuel cell 422.
  • FIG. 43 shows another configuration example of the photosensor 451.
  • the fans 461, 462, and 463 are coaxially mounted on a shaft 457 serving as a rotation axis of the light shielding blade 452.
  • the fans 461, 462 and 463 close to the fuel cell 4222 by the length of the shaft 457. As a result, it is possible to more efficiently blow air to the fuel cell 422.
  • the fan 460 for blowing air to the fuel cell 422 is arranged in a gear system (not shown) for driving the lens barrel 442, the fuel cell 442 is driven together with the fuel cell. It is possible to blow to 422.
  • a fan 460 for blowing air to the fuel cell 422 may be arranged in a gear system (not shown) for winding the film from the cartridge. By arranging the fan 460 in the gear train, it becomes possible for the CPU 411 to instruct the feeding section 414 to blow air to the fuel cell 422 every time the film is wound. .
  • the fan 460 is for blowing air to the fuel cell 422, the three blades shown in FIGS. 42 and 43 show the fans 461, 462 and 463. Not only the shape but also a larger number such as four blades or five blades can be used. Also, the shape may be another shape.
  • a fuel cell is a type of generator that produces electricity by reacting hydrogen extracted from natural gas and oxygen with oxygen.
  • Its structure is, for example, a structure in which fine particles of carbon are coated with platinum catalyst powder on a polymer film, and the polymer film is sandwiched between two electrodes. .
  • One of the two spaces formed between the polymer membrane and the electrode is filled with natural gas such as methanol, and the other space is open to the atmosphere.
  • natural gas such as methanol comes in contact with platinum Decomposition produces hydrogen ions.
  • the generated hydrogen ions pass through the polymer membrane, reach the electrode on the opposite side, and react with oxygen in the air to generate electricity. Therefore, oxygen is supplied by blowing air to the fuel cell 422, and new electricity is generated.
  • a power supply (not shown) different from the electric fan 419A and the fuel cell 4222, for example, a battery, is provided in the camera body 441.
  • a large amount of electricity is consumed, such as during charging of the strobe, oxygen is supplied by rotating the electric fan 419 A with this power supply and sending air to the fuel cell 422 according to the instruction of the CPU 401. Charge the fuel cell 4 2 2.
  • a step S501 controls the voltage detector 421 to execute a battery check of the fuel cell 422.
  • step S502 the CPU 401 determines whether or not the voltage of the fuel cell 422 detected by the voltage detector 421 in the processing of step S501 is equal to or higher than the reference voltage TH4. judge.
  • the reference voltage TH4 is a reference voltage for determining whether or not the remaining amount of the fuel cell 422 is sufficient. If it is determined in step S502 that the voltage of the fuel cell 422 is equal to or higher than the reference voltage TH4, the process proceeds to step S503, where the CPU 401 displays the liquid crystal display section 404 To display the message “Battery level 0K”.
  • step S504 If it is determined in step S504 that the voltage of the fuel cell 422 is not equal to or higher than the reference voltage ⁇ 4, the process proceeds to step S504, in which the CPU 401 Determine whether the voltage is greater than or equal to the reference voltage ⁇ 5.
  • the reference voltage ⁇ 5 is a reference voltage corresponding to the minimum remaining amount that can guarantee the correct operation of the camera of the fuel cell 422, and is smaller than the reference value ⁇ 4.
  • step S504 If it is determined in step S504 that the voltage of the fuel cell 422 is equal to or higher than the reference voltage ⁇ 5, the process proceeds to step S505, in which the CPU 401 04 Display the message “Battery level warning”. If it is determined in step S504 that the voltage of the fuel cell 422 is lower than the reference voltage TH5, the process proceeds to step S506, and the CPU 410 displays the liquid crystal display section 404. The message “Battery level NG” is displayed, and the process when the main switch is turned on is terminated.
  • step S503 or step S505 After the processing of step S503 or step S505 ends, the processing proceeds to step S507.
  • step S507 the CPU 410 controls the lens barrel drive unit 410 to drive the motor 411 and move the lens barrel 442 to the wide end (the lens barrel 4422). Unrolling process).
  • the light-shielding blade 4 52 of the lens-barrel position detection unit 4 20 rotates, and the fan 4 60 provided integrally inside the disk surface of the light-shielding blade 4 5 2 rotates.
  • the wind generated by the rolling is supplied to the fuel cell 422.
  • the fuel cell 422 can secure sufficient oxygen and generate a sufficient voltage. Even if a fan 460 is provided in the gear train for driving the lens barrel, the fan 460 rotates as the lens barrel 442 moves, and the wind generated by the rotation of the fan 460 is Is supplied to the fuel cell 4 2 2.
  • step S508 the CPU 410 controls the fan drive unit 418, drives the motor 419, and rotates the electric fan 419A dedicated for blowing air. Let it.
  • step S509 the CPU 410 controls the strobe drive unit 417 to cause the built-in capacitor to start charging the strobe.
  • step S510 the CPU 401 determines whether or not the flash has been charged. If it is not determined in step S510 that charging of the strobe has been completed, the process returns to step S509.
  • step S510 If it is determined in step S510 that the charging of the strobe is completed, the process proceeds to step S511, in which the CPU 401 controls the stop port driving unit 417 to charge the stop port. Stop.
  • the CPU 401 keeps rotating the electric fan 419 A for a predetermined time in order to restore the power of the fuel cell 422.
  • step S512 the CPU 401 starts measuring the rotation time of the electric fan 419A (the time for energizing the motor 419 that rotates the electric fan).
  • step S513 the CPU 401 determines whether a predetermined time has elapsed.
  • the information on the predetermined time can be stored in the EEPR0M403 in advance, and of course, the setting can be changed to an arbitrary time later.
  • step S514 the CPU 401 controls the fan drive unit 418 to stop the rotation of the electric fan 419A, and ends the processing when the main switch 405 is turned on.
  • a step S601 controls the voltage detection unit 421 to execute a battery check of the fuel cell 422.
  • the CPU 401 determines whether or not the voltage of the fuel cell 422 detected by the voltage detection unit 421 in the processing of step S601 is equal to or higher than the reference voltage TH4. judge.
  • the reference voltage TH4 is a reference voltage for determining whether or not the remaining amount of the fuel cell 422 is sufficient. If it is determined in step S602 that the voltage of the fuel cell 422 is equal to or higher than the reference voltage TH4, the process proceeds to step S603, and the CPU 401 displays the liquid crystal display section 404. To display the message “Battery level 0K”.
  • step S602 If it is determined in step S602 that the voltage of the fuel cell 422 is not equal to or higher than the reference voltage ⁇ 4, the process proceeds to step S604, in which the CPU 401 Determine whether the voltage is greater than or equal to the reference voltage ⁇ 5.
  • the reference voltage ⁇ 5 is a reference voltage corresponding to the minimum remaining amount that can guarantee the correct operation of the camera of the fuel cell 422, and is smaller than the reference value ⁇ 4.
  • step S604 If it is determined in step S604 that the voltage of the fuel cell 422 is equal to or higher than the reference voltage ⁇ 5, the process proceeds to step S605, in which the CPU 401 displays the liquid crystal display section 404. Display the message "Battery level warning". If it is determined in step S 604 that the voltage of the fuel cell 422 is smaller than the reference voltage ⁇ 5, the process proceeds to step S 606, where the CPU 410 displays the liquid crystal display section 404. The message “Battery level NG” is displayed, and the process when the main switch is turned off ends.
  • step S603 or step S605 After the processing of step S603 or step S605 ends, the process proceeds to step S607.
  • step S607 the CPU 401 controls the lens barrel drive unit 410 to drive the motor 4111 and Tube 4
  • the wind generated by the rotation of the fan 460 is supplied to the fuel cell 422 and the fuel cell 422 is charged.
  • step S608 the CPU 401 starts timing the energization time of the rotating motor 419 of the electric fan 419A, and then in step S609, controls the fan driving unit 418 to control the motor 419. Drive and rotate the electric fan 419A.
  • step S610 the CPU 401 controls the fan drive unit 418 in step S611 to control the motor 4 Stop the drive of 19, and stop the rotation of the electric fan 419A.
  • steps S701 to S706 the same processes as those in steps S501 to S506 when the main switch 405 in FIG. 44 is turned on (therefore, the processes in steps S601 to S606 in FIG. 45) Is executed. The description is omitted because it is repeated.
  • step S707 the CPU 401 determines whether or not the electric fan 419A is rotating.
  • step S707 If it is determined in step S707 that the electric fan 4119A is not rotating, the process proceeds to step S709, in which the CPU 401 controls the fan drive unit 4 18 to drive the motor 419, Turn the electric fan 4 19 A. If it is determined in step S707 that the electric fan 419A is already rotating, the process proceeds to step S708, where the CPU 401 continues the rotation of the electric fan 419A (the electric fan 419A). Do not stop the rotation).
  • step S710 the CPU 401 monitors the output of the flash drive unit 417 to determine whether the flash charging voltage is sufficient.
  • step S710 If it is determined in step S710 that the strobe charging voltage is insufficient, the process proceeds to step S714, in which the CPU 401 displays the message PT / JP2003 / 016925
  • step S710 If it is determined in step S710 that the strobe charging voltage is sufficient, the process proceeds to step S711, and the CPU 410 executes a distance measurement process. Specifically, the CPU 401 sends a distance measurement start control signal to the distance measurement unit 4 13. In response to this, the distance measuring section 4 13 starts the distance measuring process. Although the details of the distance measurement processing are omitted, when the distance measurement is completed, the distance measuring unit 413 outputs the distance measurement result to the CPU 401.
  • step S712 the CPU 410 sends a control signal to the photometry unit 412 to execute photometry processing.
  • the photometric section 412 calculates the brightness of the subject from the amount of light input to the internal light receiving element, and obtains the opening time of the shutter. At the same time, it determines whether or not the brightness is low, and whether or not strobe light is necessary.
  • the CPU 401 causes the liquid crystal display section 404 to display a message strobe charging completed Z ranging processing completed.
  • step S713 or step S714 the process proceeds to step S715, in which the CPU 401 determines whether or not the half-press switch 407 has been turned off.
  • step S 715 If it is not determined in step S 715 that the half-press switch 407 has been turned off, the process waits until it is turned off. If it is determined in step S715 that the half-press switch 407 has been turned off, the process proceeds to step S716.
  • steps S716 to S718 the same processing as the processing of steps S512 to S514 in FIG. 44 is performed. The description is omitted because it is repeated.
  • the light-shielding blades 452 rotate as the lens barrel 442 is driven, and the wind of the fuel cell 42 is generated by the rotation of the fan 460 provided inside the disk surface of the light-shielding blades 452. Supplied to 2. Therefore, since it is not necessary to blow air twice, when the release switch 408 is turned on, the CPU 408 is turned on in step S801. 200 hired 6925
  • step S802 the CPU 410 drives the motor 411 via the lens barrel drive section 410, and drives the lens barrel 442 to the focusing destination.
  • step S8 ⁇ 3 the CPU 401 controls the fan drive unit 418 to energize the motor 419 to rotate the electric fan 419A.
  • step S804 the shutter is opened and closed, and if it is necessary to use the strobe at the same time, the strobe is driven. That is, at this time, the CPU 401 controls the shutter drive unit 416 to operate the shutter for a predetermined time. Also, at this time, the CPU 401 controls the flash drive unit 4 17 to emit a flash as needed.
  • step S805 the CPU 401 controls the fan drive unit 418 to stop energizing the motor 419, and stops the rotation of the electric fan 419A.
  • step S806 the CPU 410 drives the motor 411 via the lens barrel drive section 4 10 to return the lens barrel 442 to the standby position.
  • the light-shielding blade 452 rotates in association with the driving of the lens barrel 44, and the wind generated by the rotation of the fan 450 provided inside the disk surface of the light-shielding blade 452 causes the fuel cell 4 Supplied to 22.
  • step S807 the CPU 410 controls the fan drive unit 418, energizes the motor 419, and rotates the electric fan 419A.
  • step S808 the CPU 410 controls the feeding section 414 to drive the motor 415 to feed the film one frame. 2003/016925
  • step S809 the CPU 410 controls the flash drive unit 4 17 to charge the flash for the next photographing.
  • step S810 the CPU 410 determines whether or not charging of the strobe has been completed. If it is not determined in step S810 that the charging of the strobe is completed, the process returns to step S809. If it is determined in step S810 that the charging of the strobe has been completed, the process proceeds to step S811, and the CPU 410 stops the charging of the strobe, and proceeds to step S812.
  • steps S812 to S814 to be performed thereafter is the same as the processing of steps S512 to S514 when the main switch 400 of FIG. 44 is turned on. Here, the description is omitted.
  • the present invention is applied to a camera using a film (film camera) has been described above as an example.
  • the present invention can be applied to a digital camera and other portable electronic devices.
  • steps for describing a program to be recorded on a recording medium are not limited to processing performed in chronological order according to the described order, but are not necessarily performed in chronological order. Alternatively, it also includes processing that is executed individually.
  • the present invention it is possible to reliably supply air to a fuel cell serving as a power supply or to a battery chamber accommodating a fuel cell. In addition, power can be reliably supplied from the fuel cell that is the power source.

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Abstract

L'invention concerne un dispositif électronique conçu pour acheminer de l'air jusqu'à une pile à combustible servant de source d'alimentation à une caméra. Le boîtier (2) de la caméra (1) présente un barillet (3) placé au milieu de la surface avant. Au sein du boîtier (2), (figure 2) sur le côté d'extrémité de la main gauche, se trouve une chambre pour pile (7) servant à loger une pile à combustible (6), ladite chambre pour pile (7) étant formée d'un trou d'air (2c) qui communique avec l'espace situé à l'extérieur du boîtier (2). Un élément mobile (8b) pourvu d'un recouvrement (8j) lié peut se déplacer vers le haut et le bas sous l'effet du poids mort, en fonction des changements de position de la caméra (1). L'air est acheminé jusqu'à la chambre pour pile (7a) via le trou d'air (2a), un clapet (8e), un espace (81) et un autre clapet (8g). Cette invention a aussi trait à une caméra utilisant une pile à combustible comme source d'alimentation.
PCT/JP2003/016925 2003-01-08 2003-12-26 Dispositif electronique WO2004064187A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003292645A AU2003292645A1 (en) 2003-01-08 2003-12-26 Electronic device

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP2003001758A JP4411507B2 (ja) 2003-01-08 2003-01-08 電子機器
JP2003001636A JP4407124B2 (ja) 2003-01-08 2003-01-08 電子機器
JP2003001757A JP4352703B2 (ja) 2003-01-08 2003-01-08 電子機器
JP2003001638A JP4407125B2 (ja) 2003-01-08 2003-01-08 電子機器
JP2003-001638 2003-01-08
JP2003-001634 2003-01-08
JP2003001634A JP4407123B2 (ja) 2003-01-08 2003-01-08 電子機器
JP2003-001758 2003-01-08
JP2003-001757 2003-01-08
JP2003-001636 2003-01-08

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WO2004064187A1 true WO2004064187A1 (fr) 2004-07-29

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AU (1) AU2003292645A1 (fr)
WO (1) WO2004064187A1 (fr)

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WO1993019495A1 (fr) * 1992-03-16 1993-09-30 Aer Energy Resources, Inc. Systeme d'alimentation en courant metal-air et de gestion de l'air, et cellule metal-air a utiliser dans ce systeme
WO2000036691A1 (fr) * 1998-12-15 2000-06-22 Electric Fuel Limited Construction d'ensemble piles pour piles metal-air
JP2000268835A (ja) * 1999-03-15 2000-09-29 Sony Corp 発電デバイス
US6348277B1 (en) * 1997-10-06 2002-02-19 Reveo, Inc. Method of and system for producing and supplying electrical power to an electrical power consuming device using a metal-air fuel cell battery (FCB) module and a supply of metal-fuel cards
JP2002134154A (ja) * 2000-10-20 2002-05-10 Sony Corp 燃料電池を備えた電気で駆動される装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019495A1 (fr) * 1992-03-16 1993-09-30 Aer Energy Resources, Inc. Systeme d'alimentation en courant metal-air et de gestion de l'air, et cellule metal-air a utiliser dans ce systeme
US6348277B1 (en) * 1997-10-06 2002-02-19 Reveo, Inc. Method of and system for producing and supplying electrical power to an electrical power consuming device using a metal-air fuel cell battery (FCB) module and a supply of metal-fuel cards
WO2000036691A1 (fr) * 1998-12-15 2000-06-22 Electric Fuel Limited Construction d'ensemble piles pour piles metal-air
JP2000268835A (ja) * 1999-03-15 2000-09-29 Sony Corp 発電デバイス
JP2002134154A (ja) * 2000-10-20 2002-05-10 Sony Corp 燃料電池を備えた電気で駆動される装置

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