WO2022239413A1 - Unité d'alimentation en énergie d'un dispositif de génération d'aérosol - Google Patents

Unité d'alimentation en énergie d'un dispositif de génération d'aérosol Download PDF

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Publication number
WO2022239413A1
WO2022239413A1 PCT/JP2022/009489 JP2022009489W WO2022239413A1 WO 2022239413 A1 WO2022239413 A1 WO 2022239413A1 JP 2022009489 W JP2022009489 W JP 2022009489W WO 2022239413 A1 WO2022239413 A1 WO 2022239413A1
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WIPO (PCT)
Prior art keywords
power supply
terminal
aerosol generator
heater
supply unit
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Application number
PCT/JP2022/009489
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English (en)
Japanese (ja)
Inventor
達也 青山
拓嗣 川中子
徹 長浜
貴司 藤木
亮 吉田
Original Assignee
日本たばこ産業株式会社
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Application filed by 日本たばこ産業株式会社 filed Critical 日本たばこ産業株式会社
Publication of WO2022239413A1 publication Critical patent/WO2022239413A1/fr

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/53—Monitoring, e.g. fault detection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks

Definitions

  • the present invention relates to a power supply unit for an aerosol generator.
  • Patent Literature 1 describes an electronic inhaler that can return variables and parameters changed by the user to their factory defaults by a reset operation.
  • Patent Document 2 describes the necessity of pressing a reset button in an e-cigarette when an error state is signaled to the user via the user interface.
  • Patent Document 3 describes an aerosol generator that performs a reset (initialization setting) operation by pressing the button for a long time.
  • Patent Document 4 describes automatic resetting of an aerosol delivery device if the control component, or the software running on it, continues to become unstable.
  • Patent Document 5 describes that an electronic cigarette is reset by a smartphone that can communicate with the electronic cigarette.
  • Patent Document 6 describes permanently disabling the inhaler until a reset procedure is performed.
  • Patent Document 7 describes a device for providing maintenance services for smoking devices.
  • the appliance is configured to enable a software reset of the smoking device.
  • An object of the present invention is to provide a power supply unit for an aerosol generator that can restart the controller only when necessary.
  • a power supply unit of an aerosol generating apparatus includes a power supply, a heater connector to which a heater that consumes the power supplied from the power supply to heat the aerosol source is connected, and power from the power supply to the heater.
  • a controller configured to be able to control the supply of , an operation unit operable by a user, and a restart circuit capable of restarting the controller, wherein the restart circuit is operated when the operation unit is operated, and , the controller is restarted only when a predetermined condition different from the operation of the operation unit is satisfied.
  • the controller can be restarted only when necessary.
  • FIG. 1 is a perspective view of a non-combustion inhaler
  • FIG. 1 is a perspective view of a non-combustion inhaler showing a state in which a rod is attached
  • FIG. Fig. 10 is another perspective view of a non-combustion type inhaler
  • 1 is an exploded perspective view of a non-combustion inhaler
  • FIG. Fig. 3 is a perspective view of the internal unit of the non-combustion inhaler
  • FIG. 6 is an exploded perspective view of the internal unit of FIG. 5
  • FIG. 3 is a perspective view of the internal unit with the power supply and chassis removed
  • FIG. 11 is another perspective view of the internal unit with the power supply and chassis removed
  • It is a schematic diagram for demonstrating the operation mode of an aspirator.
  • FIG. 4 is a diagram for explaining the operation of an electric circuit in sleep mode; It is a figure for demonstrating the operation
  • FIG. 4 is a diagram for explaining the operation of the electric circuit in the heating initial setting mode; It is a figure for demonstrating the operation
  • FIG. 5 is a diagram for explaining the operation of the electric circuit when detecting the temperature of the heater in the heating mode; FIG.
  • FIG. 4 is a diagram for explaining the operation of the electric circuit in charging mode;
  • FIG. 4 is a diagram for explaining the operation of an electric circuit when an MCU is reset (restarted); It is a figure which shows schematic structure inside charging IC.
  • FIG. 11 is a main circuit diagram showing main electronic components related to reset operation extracted from the electric circuit shown in FIG. 10 ;
  • Figure 2 is a cross-sectional view in a plane through the case thermistor of the suction device shown in Figure 1;
  • suction system which is one embodiment of the aerosol generator of the present invention, will be described below with reference to the drawings.
  • This suction system includes a non-combustion type suction device 100 (hereinafter also simply referred to as "suction device 100"), which is an embodiment of the power supply unit of the present invention, and a rod 500 heated by the suction device 100.
  • suction device 100 a non-combustion type suction device 100
  • the suction device 100 accommodates the heating unit in a non-detachable manner
  • the heating unit may be detachably attached to the aspirator 100 .
  • the rod 500 and the heating unit may be integrated and detachably attached to the aspirator 100 .
  • the power supply unit of the aerosol generator may have a configuration that does not include the heating section as a component.
  • “non-detachable” refers to a mode in which detachment is not possible as far as the intended use is concerned.
  • an induction heating coil provided in the aspirator 100 and a susceptor built in the rod 500 may cooperate to form a heating unit.
  • FIG. 1 is a perspective view showing the overall configuration of the aspirator 100.
  • FIG. FIG. 2 is a perspective view of the suction device 100 showing a state in which the rod 500 is attached.
  • FIG. 3 is another perspective view of the suction device 100.
  • FIG. FIG. 4 is an exploded perspective view of the aspirator 100.
  • FIG. Also, in the following description, for the sake of convenience, the orthogonal coordinate system of a three-dimensional space is used, in which the three mutually orthogonal directions are the front-back direction, the left-right direction, and the up-down direction. In the figure, the front is indicated by Fr, the rear by Rr, the right by R, the left by L, the upper by U, and the lower by D.
  • the inhaler 100 generates flavor-containing aerosol by heating an elongated, substantially cylindrical rod 500 (see FIG. 2) as an example of a flavor component-generating base having a filling containing an aerosol source and a flavor source. configured to
  • Rod 500 includes a fill containing an aerosol source that is heated at a predetermined temperature to produce an aerosol.
  • the type of aerosol source is not particularly limited, and extracts from various natural products and/or their constituent components can be selected according to the application.
  • the aerosol source may be solid or liquid, for example polyhydric alcohols such as glycerin, propylene glycol, or water.
  • the aerosol source may include a flavor source such as a tobacco material or an extract derived from the tobacco material that releases flavor components upon heating.
  • the gas to which the flavor component is added is not limited to an aerosol, and for example an invisible vapor may be generated.
  • the filling of rod 500 may contain tobacco shreds as a flavor source.
  • Materials for shredded tobacco are not particularly limited, and known materials such as lamina and backbone can be used.
  • the filling may contain one or more perfumes.
  • the type of flavoring agent is not particularly limited, but menthol is preferable from the viewpoint of imparting a good smoking taste.
  • Flavor sources may contain plants other than tobacco, such as mints, herbal medicines, or herbs. Depending on the application, rod 500 may not contain a flavor source.
  • the suction device 100 includes a substantially rectangular parallelepiped case 110 having a front surface, a rear surface, a left surface, a right surface, an upper surface, and a lower surface.
  • the case 110 comprises a bottomed cylindrical case body 112 in which front, rear, top, bottom, and right surfaces are integrally formed, and a left surface that seals an opening 114 (see FIG. 4) of the case body 112. It has an outer panel 115 , an inner panel 118 , and a slider 119 .
  • the inner panel 118 is fixed to the case body 112 with bolts 120 .
  • the outer panel 115 is fixed to the case body 112 so as to cover the outer surface of the inner panel 118 by a magnet 124 held by a chassis 150 (see FIG. 5) housed in the case body 112 and described later. Since the outer panel 115 is fixed by the magnet 124, the user can replace the outer panel 115 according to his or her preference.
  • the inner panel 118 is provided with two through holes 126 through which the magnets 124 pass.
  • the inner panel 118 is further provided with a longitudinally elongated hole 127 and a circular round hole 128 between the two vertically arranged through holes 126 .
  • This long hole 127 is for transmitting light emitted from eight LEDs (Light Emitting Diodes) L1 to L8 built in the case body 112 .
  • a button-type operation switch OPS built in the case body 112 passes through the round hole 128 . Thereby, the user can detect the light emitted from the eight LEDs L1 to L8 through the LED window 116 of the outer panel 115. FIG. Also, the user can press down the operation switch OPS via the pressing portion 117 of the outer panel 115 .
  • the upper surface of the case body 112 is provided with an opening 132 into which the rod 500 can be inserted.
  • the slider 119 is coupled to the case body 112 so as to be movable in the front-rear direction between a position for closing the opening 132 (see FIG. 1) and a position for opening the opening 132 (see FIG. 2).
  • the operation switch OPS is used to perform various operations of the aspirator 100.
  • the user operates the operation switch OPS via the pressing portion 117 while inserting the rod 500 into the opening 132 as shown in FIG.
  • the heating unit 170 (see FIG. 5) heats the rod 500 without burning it.
  • an aerosol is generated from the aerosol source contained in the rod 500 and the flavor of the flavor source contained in the rod 500 is added to the aerosol.
  • the user can inhale the flavor-containing aerosol by holding the mouthpiece 502 of the rod 500 projecting from the opening 132 and inhaling.
  • a charging terminal 134 is provided for receiving power supply by being electrically connected to an external power source such as an outlet or a mobile battery.
  • the charging terminal 134 is a USB (Universal Serial Bus) Type-C receptacle, but is not limited to this.
  • Charging terminal 134 is hereinafter also referred to as receptacle RCP.
  • the charging terminal 134 may include, for example, a power receiving coil and be configured to be capable of contactlessly receiving power transmitted from an external power supply.
  • the wireless power transfer method in this case may be an electromagnetic induction type, a magnetic resonance type, or a combination of the electromagnetic induction type and the magnetic resonance type.
  • the charging terminal 134 can be connected to various USB terminals or the like, and may have the power receiving coil described above.
  • the configuration of the aspirator 100 shown in FIGS. 1-4 is merely an example.
  • the inhaler 100 holds the rod 500 and applies an action such as heating to generate gas to which a flavor component is added from the rod 500, and the user can inhale the generated gas. It can be configured in various forms.
  • FIG. 5 is a perspective view of the internal unit 140 of the suction device 100.
  • FIG. 6 is an exploded perspective view of the internal unit 140 of FIG. 5.
  • FIG. 7 is a perspective view of internal unit 140 with power supply BAT and chassis 150 removed.
  • FIG. 8 is another perspective view of the internal unit 140 with the power supply BAT and chassis 150 removed.
  • the internal unit 140 housed in the internal space of the case 110 includes a chassis 150, a power supply BAT, a circuit section 160, a heating section 170, a notification section 180, and various sensors.
  • the chassis 150 includes a plate-shaped chassis body 151 arranged substantially in the center of the interior space of the case 110 in the front-rear direction and extending in the vertical and front-rear directions, and a chassis body 151 disposed substantially in the center of the interior space of the case 110 in the front-rear direction.
  • a plate-shaped front and rear dividing wall 152 extending in the vertical and horizontal directions
  • a plate-shaped upper and lower dividing wall 153 extending forward from substantially the center of the front and rear dividing wall 152 in the vertical direction
  • the front and rear dividing wall 152 and the upper edges of the chassis body 151 and a plate-shaped chassis lower wall 155 extending rearward from the front-rear dividing wall 152 and the lower edge of the chassis body 151 .
  • the left surface of the chassis body 151 is covered with the inner panel 118 and the outer panel 115 of the case 110 described above.
  • the internal space of the case 110 is defined by a chassis 150 such that a heating unit housing area 142 is defined in the upper front, a board housing area 144 is defined in the lower front, and a power supply housing space 146 is defined in the rear to extend vertically. ing.
  • the heating part 170 housed in the heating part housing area 142 is composed of a plurality of tubular members, which are concentrically arranged to form a tubular body as a whole.
  • the heating section 170 has a rod housing section 172 capable of housing a portion of the rod 500 therein, and a heater HTR (see FIGS. 10 to 19) that heats the rod 500 from its outer circumference or center.
  • the surface of the rod housing portion 172 and the heater HTR are insulated by forming the rod housing portion 172 from a heat insulating material or providing a heat insulating material inside the rod housing portion 172 .
  • the heater HTR may be any element that can heat the rod 500 .
  • the heater HTR is, for example, a heating element.
  • Heating elements include heating resistors, ceramic heaters, induction heaters, and the like.
  • the heater HTR for example, one having a PTC (Positive Temperature Coefficient) characteristic in which the resistance value increases as the temperature increases is preferably used.
  • a heater HTR having NTC (Negative Temperature Coefficient) characteristics in which the resistance value decreases as the temperature increases may be used.
  • the heating part 170 has a function of defining a flow path of air to be supplied to the rod 500 and a function of heating the rod 500 .
  • the case 110 is formed with a vent (not shown) for introducing air, and is configured to allow air to enter the heating unit 170 .
  • the power supply BAT housed in the power supply housing space 146 is a rechargeable secondary battery, an electric double layer capacitor, or the like, preferably a lithium ion secondary battery.
  • the electrolyte of the power supply BAT may be composed of one or a combination of a gel electrolyte, an electrolytic solution, a solid electrolyte, and an ionic liquid.
  • the notification unit 180 notifies various information such as the SOC (State Of Charge) indicating the state of charge of the power supply BAT, the preheating time during suction, and the suction possible period.
  • the notification unit 180 of this embodiment includes eight LEDs L1 to L8 and a vibration motor M.
  • the notification unit 180 may be composed of light emitting elements such as LEDs L1 to L8, may be composed of vibrating elements such as the vibration motor M, or may be composed of sound output elements.
  • the notification unit 180 may be a combination of two or more elements selected from the light emitting element, the vibration element, and the sound output element.
  • Various sensors include an intake air sensor that detects the user's puff action (sucking action), a power supply temperature sensor that detects the temperature of the power supply BAT, a heater temperature sensor that detects the temperature of the heater HTR, and a case temperature sensor that detects the temperature of the case 110. , a cover position sensor that detects the position of the slider 119, a panel detection sensor that detects attachment/detachment of the outer panel 115, and the like.
  • the intake sensor is mainly composed of a thermistor T2 arranged near the opening 132, for example.
  • the power supply temperature sensor is mainly composed of, for example, a thermistor T1 arranged near the power supply BAT.
  • the heater temperature sensor is mainly composed of, for example, a thermistor T3 arranged near the heater HTR.
  • the rod housing portion 172 is preferably insulated from the heater HTR.
  • the thermistor T3 is preferably in contact with or close to the heater HTR inside the rod housing portion 172 . If the heater HTR has PTC characteristics or NTC characteristics, the heater HTR itself may be used as the heater temperature sensor.
  • the case temperature sensor is mainly composed of, for example, a thermistor T4 arranged near the left surface of the case 110 .
  • Thermistor T4 is preferably in contact with or in close proximity to case 110 .
  • the cover position sensor is mainly composed of a Hall IC 14 including a Hall element arranged near the slider 119 .
  • the panel detection sensor is mainly composed of a Hall IC 13 including a Hall element arranged near the inner surface of the inner panel 118 .
  • the circuit section 160 includes four circuit boards, multiple ICs (Integrate Circuits), and multiple elements.
  • the four circuit boards are an MCU-mounted board 161 on which an MCU (Micro Controller Unit) 1 and a charging IC 2, which will be described later, are mainly arranged, a receptacle-mounted board 162 mainly on which charging terminals 134 are arranged, an operation switch OPS, and an LED An LED mounting substrate 163 on which L1 to L8 and a communication IC 15 described later are arranged, and a Hall IC mounting substrate 164 on which a Hall IC 14 including a Hall element constituting a cover position sensor is arranged.
  • the MCU mounting board 161 and the receptacle mounting board 162 are arranged parallel to each other in the board accommodation area 144 . More specifically, the MCU mounting board 161 and the receptacle mounting board 162 are arranged such that their element mounting surfaces are arranged along the horizontal direction and the vertical direction, and the MCU mounting board 161 is arranged in front of the receptacle mounting board 162. .
  • the MCU mounting board 161 and the receptacle mounting board 162 are each provided with openings.
  • the MCU mounting board 161 and the receptacle mounting board 162 are fastened with bolts 136 to the board fixing portion 156 of the front/rear dividing wall 152 with a cylindrical spacer 173 interposed between the peripheral edges of these openings.
  • the spacer 173 fixes the positions of the MCU mounting board 161 and the receptacle mounting board 162 inside the case 110 and mechanically connects the MCU mounting board 161 and the receptacle mounting board 162 .
  • the MCU mounting board 161 and the receptacle mounting board 162 it is possible to prevent the MCU mounting board 161 and the receptacle mounting board 162 from coming into contact with each other and causing a short-circuit current between them.
  • the MCU mounting board 161 and the receptacle mounting board 162 have main surfaces 161a and 162a that face forward, and secondary surfaces 161b and 162b that are opposite to the main surfaces 161a and 162a. and the main surface 162a of the receptacle mounting substrate 162 face each other with a predetermined gap therebetween.
  • a main surface 161 a of the MCU mounting board 161 faces the front surface of the case 110
  • a secondary surface 162 b of the receptacle mounting board 162 faces the front and rear dividing walls 152 of the chassis 150 .
  • Elements and ICs mounted on the MCU mounting board 161 and the receptacle mounting board 162 will be described later.
  • the LED mounting board 163 is arranged on the left side of the chassis body 151 and between the two magnets 124 arranged vertically.
  • the element mounting surface of the LED mounting substrate 163 is arranged along the vertical direction and the front-rear direction.
  • the element mounting surfaces of the MCU mounting board 161 and the receptacle mounting board 162 are orthogonal to the element mounting surface of the LED mounting board 163 .
  • the element mounting surfaces of the MCU mounting board 161 and the receptacle mounting board 162 and the element mounting surface of the LED mounting board 163 are not limited to being orthogonal, but preferably intersect (non-parallel).
  • the vibration motor M which forms the notification unit 180 together with the LEDs L1 to L8, is fixed to the bottom surface of the chassis bottom wall 155 and electrically connected to the MCU mounting board 161.
  • the Hall IC mounting board 164 is arranged on the upper surface of the chassis upper wall 154 .
  • FIG. 9 is a schematic diagram for explaining the operation modes of the aspirator 100.
  • the operating modes of the suction device 100 include charging mode, sleep mode, active mode, heating initialization mode, heating mode, and heating termination mode.
  • the sleep mode is a mode for saving power by stopping the power supply to the electronic parts required for heating control of the heater HTR.
  • the active mode is a mode in which most functions except heating control of the heater HTR are enabled.
  • the operation mode is switched to the active mode.
  • the slider 119 is closed or the non-operating time of the operation switch OPS reaches a predetermined time while the aspirator 100 is operating in the active mode, the operating mode is switched to the sleep mode.
  • the heating initial setting mode is a mode for initializing control parameters and the like for starting heating control of the heater HTR.
  • the aspirator 100 detects the operation of the operation switch OPS while operating in the active mode, it switches the operation mode to the heating initial setting mode, and when the initial setting is completed, switches the operation mode to the heating mode.
  • the heating mode is a mode that executes heating control of the heater HTR (heating control for aerosol generation and heating control for temperature detection).
  • the aspirator 100 starts heating control of the heater HTR when the operation mode is switched to the heating mode.
  • the heating end mode is a mode for executing heating control end processing (heating history storage processing, etc.) of the heater HTR.
  • the operation mode is switched to the heating end mode.
  • the operation mode is switched to the active mode.
  • the USB connection is established while the aspirator 100 is operating in the heating mode, the operating mode is switched to the heating end mode, and when the end processing is completed, the operating mode is switched to the charging mode. As shown in FIG.
  • the operating mode may be switched to the active mode before switching the operating mode to the charging mode.
  • the aspirator 100 may switch the operation mode in order of the heating end mode, the active mode, and the charging mode when the USB connection is made while operating in the heating mode.
  • the charging mode is a mode in which the power supply BAT is charged with power supplied from an external power supply connected to the receptacle RCP.
  • the aspirator 100 switches the operation mode to the charge mode when an external power source is connected (USB connection) to the receptacle RCP while operating in sleep mode or active mode.
  • the aspirator 100 switches the operation mode to the sleep mode when the charging of the power supply BAT is completed or the connection between the receptacle RCP and the external power supply is released while operating in the charging mode.
  • FIG. 11 shows a range 161A mounted on the MCU mounting board 161 (range surrounded by thick dashed lines) and a range 163A mounted on the LED mounting board 163 (range surrounded by thick solid lines) in the electric circuit shown in FIG.
  • FIG. 12 is the same as FIG. 10 except that a range 162A mounted on the receptacle mounting board 162 and a range 164A mounted on the Hall IC mounting board 164 are added to the electric circuit shown in FIG. is.
  • the wiring indicated by the thick solid line in FIG. 10 is the wiring (the wiring connected to the ground provided in the internal unit 140) that has the same potential as the reference potential (ground potential) of the internal unit 140. It is described as a ground line below.
  • an electronic component in which a plurality of circuit elements are chipped is indicated by a rectangle, and the symbols of various terminals are indicated inside the rectangle.
  • a power supply terminal VCC and a power supply terminal VDD mounted on the chip indicate power supply terminals on the high potential side, respectively.
  • a power supply terminal VSS and a ground terminal GND mounted on the chip indicate power supply terminals on the low potential side (reference potential side).
  • the power supply voltage is the difference between the potential of the power supply terminal on the high potential side and the potential of the power supply terminal on the low potential side. Chipped electronic components use this power supply voltage to perform various functions.
  • the MCU-mounted board 161 includes, as main electronic components, an MCU1 that controls the entire sucker 100, a charging IC2 that controls charging of the power source BAT, a capacitor, a resistor load switches (hereinafter referred to as LSW) 3, 4, 5, a ROM (Read Only Memory) 6, a switch driver 7, and a step-up/step-down DC/DC converter 8 (in the figure, buck-boost DC/DC 8), operational amplifier OP2, operational amplifier OP3, flip-flops (FF) 16, 17, connector Cn (t2) (which is electrically connected to thermistor T2 constituting an intake sensor) ( The figure shows the thermistor T2 connected to this connector), and a connector Cn(t3) electrically connected to the thermistor T3 constituting the heater temperature sensor (the figure shows the thermistor T3 connected to this connector).
  • LSW resistor load switches
  • LSW resistor load switches
  • ROM Read Only Memory
  • switch driver 7 a switch driver 7
  • a ground terminal GND of each of the charging IC 2, LSW3, LSW4, LSW5, switch driver 7, step-up/step-down DC/DC converter 8, FF16, and FF17 is connected to a ground line.
  • a power terminal VSS of the ROM 6 is connected to the ground line.
  • a negative power supply terminal of each of the operational amplifiers OP2 and OP3 is connected to the ground line.
  • the LED mounting board 163 (area 163A) has, as main electronic components, a Hall IC 13 including a Hall element constituting a panel detection sensor, LEDs L1 to L8, an operation switch OPS, a communication IC 15 and are provided.
  • the communication IC 15 is a communication module for communicating with electronic devices such as smartphones.
  • a power supply terminal VSS of the Hall IC 13 and a ground terminal GND of the communication IC 15 are each connected to a ground line.
  • Communication IC 15 and MCU 1 are configured to be communicable via communication line LN.
  • One end of the operation switch OPS is connected to the ground line, and the other end of the operation switch OPS is connected to the terminal P4 of the MCU1.
  • the receptacle mounting board 162 (range 162A) includes a power connector electrically connected to the power supply BAT as a main electronic component (in the figure, the power supply BAT connected to this power connector is shown). ), a connector electrically connected to a thermistor T1 constituting a power supply temperature sensor (in the figure, the thermistor T1 connected to this connector is shown), and a boost DC/DC converter 9 (in the figure, a boost DC/DC 9 ), the protection IC 10, the overvoltage protection IC 11, the fuel gauge IC 12, the receptacle RCP, the switches S3 to S6 configured by MOSFETs, the operational amplifier OP1, and the heater HTR. (positive electrode side and negative electrode side) heater connectors Cn are provided.
  • ground terminals GND of receptacle RCP, ground terminal GND of step-up DC/DC converter 9, power supply terminal VSS of protection IC 10, power supply terminal VSS of fuel gauge IC 12, ground terminal GND of overvoltage protection IC 11, and operational amplifier The negative power supply terminals of OP1 are each connected to the ground line.
  • the Hall IC mounting substrate 164 (area 164A) is provided with a Hall IC 14 including a Hall element that constitutes a cover position sensor.
  • a power terminal VSS of the Hall IC 14 is connected to the ground line.
  • the output terminal OUT of the Hall IC 14 is connected to the terminal P8 of the MCU1.
  • the MCU1 detects opening/closing of the slider 119 from a signal input to the terminal P8.
  • a connector electrically connected to the vibration motor M is provided on the MCU mounting board 161 .
  • the two power supply input terminals V BUS of the receptacle RCP are each connected to the input terminal IN of the overvoltage protection IC11 via a fuse Fs.
  • the USB voltage V USB is supplied to the two power input terminals V BUS of the receptacle RCP.
  • An input terminal IN of the overvoltage protection IC 11 is connected to one end of a voltage dividing circuit Pa consisting of a series circuit of two resistors.
  • the other end of the voltage dividing circuit Pa is connected to the ground line.
  • a connection point between the two resistors forming the voltage dividing circuit Pa is connected to the voltage detection terminal OVLo of the overvoltage protection IC11.
  • the overvoltage protection IC 11 outputs the voltage input to the input terminal IN from the output terminal OUT when the voltage input to the voltage detection terminal OVLo is less than the threshold.
  • the overvoltage protection IC 11 stops voltage output from the output terminal OUT (cuts off the electrical connection between the LSW3 and the receptacle RCP) when the voltage input to the voltage detection terminal OVLo exceeds the threshold (overvoltage). By doing so, the electronic components downstream of the overvoltage protection IC 11 are protected.
  • the output terminal OUT of the overvoltage protection IC11 is connected to the input terminal VIN of the LSW3 and one end of the voltage dividing circuit Pc (series circuit of two resistors) connected to the MCU1. The other end of the voltage dividing circuit Pc is connected to the ground line. A connection point of the two resistors forming the voltage dividing circuit Pc is connected to the terminal P17 of the MCU1.
  • An input terminal VIN of LSW3 is connected to one end of a voltage dividing circuit Pf consisting of a series circuit of two resistors.
  • the other end of the voltage dividing circuit Pf is connected to the ground line.
  • a connection point between the two resistors forming the voltage dividing circuit Pf is connected to the control terminal ON of the LSW3.
  • the collector terminal of the bipolar transistor S2 is connected to the control terminal ON of LSW3.
  • the emitter terminal of the bipolar transistor S2 is connected to the ground line.
  • the base terminal of bipolar transistor S2 is connected to terminal P19 of MCU1.
  • the output terminal VOUT of LSW3 is connected to the input terminal VBUS of charging IC2.
  • the MCU1 turns on the bipolar transistor S2 while the USB connection is not made.
  • the control terminal ON of LSW3 is connected to the ground line via the bipolar transistor S2, so that a low level signal is input to the control terminal ON of LSW3.
  • the bipolar transistor S2 connected to LSW3 is turned off by MCU1 when the USB connection is made.
  • the USB voltage VUSB divided by the voltage dividing circuit Pf is input to the control terminal ON of the LSW3. Therefore, when the USB connection is made and the bipolar transistor S2 is turned off, a high level signal is input to the control terminal ON of the LSW3.
  • the LSW 3 outputs the USB voltage VUSB supplied from the USB cable from the output terminal VOUT. Even if the USB connection is made while the bipolar transistor S2 is not turned off, the control terminal ON of the LSW3 is connected to the ground line via the bipolar transistor S2. Therefore, it should be noted that a low level signal continues to be input to the control terminal ON of LSW3 unless MCU1 turns off bipolar transistor S2.
  • the positive terminal of the power supply BAT is connected to the power supply terminal VDD of the protection IC 10, the input terminal VIN of the step-up DC/DC converter 9, and the charging terminal bat of the charging IC2. Therefore, the power supply voltage V BAT of the power supply BAT is supplied to the protection IC 10 , the charging IC 2 and the step-up DC/DC converter 9 .
  • a resistor Ra, a switch Sa composed of a MOSFET, a switch Sb composed of a MOSFET, and a resistor Rb are connected in series in this order to the negative terminal of the power supply BAT.
  • a current detection terminal CS of the protection IC 10 is connected to a connection point between the resistor Ra and the switch Sa. Control terminals of the switches Sa and Sb are connected to the protection IC 10 . Both ends of the resistor Rb are connected to the fuel gauge IC12.
  • the protection IC 10 acquires the value of the current flowing through the resistor Ra during charging and discharging of the power supply BAT from the voltage input to the current detection terminal CS, and when this current value becomes excessive (overcurrent), the switch Sa , the switch Sb is controlled to open and close to stop the charging or discharging of the power source BAT, thereby protecting the power source BAT. More specifically, when the protection IC 10 acquires an excessive current value while charging the power supply BAT, it stops charging the power supply BAT by turning off the switch Sb. When the protection IC 10 acquires an excessive current value during discharging of the power supply BAT, the protection IC 10 stops discharging the power supply BAT by turning off the switch Sa.
  • the protection IC 10 performs opening/closing control of the switch Sa and the switch Sb to The power supply BAT is protected by stopping the charging or discharging of BAT. More specifically, when the protection IC 10 detects that the power supply BAT is overcharged, the protection IC 10 stops charging the power supply BAT by turning off the switch Sb. When detecting overdischarge of the power supply BAT, the protection IC 10 turns off the switch Sa to stop the discharge of the power supply BAT.
  • a resistor Rt1 is connected to a connector connected to the thermistor T1 arranged near the power supply BAT.
  • a series circuit of the resistor Rt1 and the thermistor T1 is connected to the ground line and the regulator terminal TREG of the fuel gauge IC12.
  • a connection point between the thermistor T1 and the resistor Rt1 is connected to a thermistor terminal THM of the fuel gauge IC12.
  • the thermistor T1 may be a PTC (Positive Temperature Coefficient) thermistor whose resistance value increases as the temperature increases, or an NTC (Negative Temperature Coefficient) thermistor whose resistance value decreases as the temperature increases.
  • the fuel gauge IC 12 detects the current flowing through the resistor Rb, and based on the detected current value, indicates the remaining capacity of the power supply BAT, SOC (State Of Charge) indicating the state of charge, and SOH (State Of Charge) indicating the state of health. Health) and other battery information.
  • the fuel gauge IC12 supplies a voltage to the voltage dividing circuit of the thermistor T1 and the resistor Rt1 from the built-in regulator connected to the regulator terminal TREG.
  • the fuel gauge IC 12 acquires the voltage divided by this voltage dividing circuit from the thermistor terminal THM, and acquires temperature information regarding the temperature of the power supply BAT based on this voltage.
  • the fuel gauge IC12 is connected to the MCU1 via a communication line LN for serial communication, and is configured to be able to communicate with the MCU1.
  • the fuel gauge IC12 transmits the derived battery information and the acquired temperature information of the power supply BAT to the MCU1 in response to a request from the MCU1.
  • serial communication requires a plurality of signal lines such as a data line for data transmission and a clock line for synchronization. Note that only one signal line is shown in FIGS. 10-19 for simplicity.
  • the fuel gauge IC 12 has a notification terminal 12a.
  • the notification terminal 12a is connected to the terminal P6 of the MCU1 and the cathode of a diode D2, which will be described later.
  • the fuel gauge IC 12 detects an abnormality such as an excessive temperature of the power supply BAT, it notifies the MCU 1 of the occurrence of the abnormality by outputting a low-level signal from the notification terminal 12a. This low level signal is also input to the CLR ( ⁇ ) terminal of the FF 17 via the diode D2.
  • One end of the reactor Lc is connected to the switching terminal SW of the step-up DC/DC converter 9 .
  • the other end of this reactor Lc is connected to the input terminal VIN of the step-up DC/DC converter 9 .
  • the step-up DC/DC converter 9 performs on/off control of the built-in transistor connected to the switching terminal SW to step up the input voltage and output it from the output terminal VOUT.
  • the input terminal VIN of the step-up DC/DC converter 9 constitutes a power supply terminal of the step-up DC/DC converter 9 on the high potential side.
  • the boost DC/DC converter 9 performs a boost operation when the signal input to the enable terminal EN is at high level.
  • the signal input to the enable terminal EN of the boost DC/DC converter 9 may be controlled to be low level by the MCU1.
  • the MCU 1 does not control the signal input to the enable terminal EN of the boost DC/DC converter 9, so that the potential of the enable terminal EN may be made indefinite.
  • the output terminal VOUT of the step-up DC/DC converter 9 is connected to the source terminal of the switch S4 composed of a P-channel MOSFET.
  • the gate terminal of switch S4 is connected to terminal P15 of MCU1.
  • One end of the resistor Rs is connected to the drain terminal of the switch S4.
  • the other end of the resistor Rs is connected to a positive heater connector Cn connected to one end of the heater HTR.
  • a voltage dividing circuit Pb consisting of two resistors is connected to the connection point between the switch S4 and the resistor Rs.
  • a connection point of the two resistors forming the voltage dividing circuit Pb is connected to the terminal P18 of the MCU1.
  • a connection point between the switch S4 and the resistor Rs is further connected to the positive power supply terminal of the operational amplifier OP1.
  • a connection line between the output terminal VOUT of the step-up DC/DC converter 9 and the source terminal of the switch S4 is connected to the source terminal of the switch S3 composed of a P-channel MOSFET.
  • the gate terminal of switch S3 is connected to terminal P16 of MCU1.
  • a drain terminal of the switch S3 is connected to a connection line between the resistor Rs and the heater connector Cn on the positive electrode side.
  • a circuit including the switch S3 and a circuit including the switch S4 and the resistor Rs are connected in parallel between the output terminal VOUT of the boost DC/DC converter 9 and the positive electrode side of the heater connector Cn. . Since the circuit including the switch S3 does not have a resistor, it has a lower resistance than the circuit including the switch S4 and the resistor Rs.
  • the non-inverting input terminal of the operational amplifier OP1 is connected to the connection line between the resistor Rs and the heater connector Cn on the positive electrode side.
  • the inverting input terminal of the operational amplifier OP1 is connected to the negative heater connector Cn connected to the other end of the heater HTR and to the drain terminal of the switch S6 composed of an N-channel MOSFET.
  • the source terminal of switch S6 is connected to the ground line.
  • a gate terminal of the switch S6 is connected to the terminal P14 of the MCU1, the anode of the diode D4, and the enable terminal EN of the step-up DC/DC converter 9.
  • the cathode of diode D4 is connected to the Q terminal of FF17.
  • resistor R4 One end of a resistor R4 is connected to the output terminal of the operational amplifier OP1. The other end of the resistor R4 is connected to the terminal P9 of the MCU1 and the drain terminal of the switch S5 composed of an N-channel MOSFET. A source terminal of the switch S5 is connected to the ground line. A gate terminal of the switch S5 is connected to a connection line between the resistor Rs and the heater connector Cn on the positive electrode side.
  • the input terminal VBUS of charging IC2 is connected to the anode of each of LEDs L1-L8.
  • the cathodes of the LEDs L1-L8 are connected to the control terminals PD1-PD8 of the MCU1 via current limiting resistors. That is, LEDs L1 to L8 are connected in parallel to the input terminal VBUS.
  • the LEDs L1 to L8 are operable by the USB voltage V USB supplied from the USB cable connected to the receptacle RCP and the voltage supplied from the power supply BAT via the charging IC2.
  • the MCU 1 incorporates transistors (switching elements) connected to each of the control terminals PD1 to PD8 and the ground terminal GND.
  • the MCU1 turns on the transistor connected to the control terminal PD1 to energize the LED L1 to light it, and turns off the transistor connected to the control terminal PD1 to turn off the LED L1.
  • the brightness and light emission pattern of the LED L1 can be dynamically controlled.
  • LEDs L2 to L8 are similarly controlled by the MCU1.
  • the charging IC2 has a charging function of charging the power supply BAT based on the USB voltage VUSB input to the input terminal VBUS.
  • the charging IC 2 acquires the charging current and charging voltage of the power supply BAT from terminals and wiring (not shown), and based on these, performs charging control of the power supply BAT (power supply control from the charging terminal bat to the power supply BAT). Also, the charging IC 2 may acquire the temperature information of the power supply BAT transmitted from the fuel gauge IC 12 to the MCU 1 from the MCU 1 through serial communication using the communication line LN, and use it for charging control.
  • the charging IC2 further comprises a V BAT power pass function and an OTG function.
  • the V BAT power pass function is a function of outputting from the output terminal SYS a system power supply voltage Vcc0 substantially matching the power supply voltage V BAT input to the charging terminal bat.
  • the OTG function is a function for outputting from the input terminal VBUS a system power supply voltage Vcc4 obtained by boosting the power supply voltage VBAT input to the charging terminal bat.
  • ON/OFF of the OTG function of the charging IC 2 is controlled by the MCU 1 through serial communication using the communication line LN.
  • the power supply voltage V BAT input to the charging terminal bat may be directly output from the input terminal VBUS. In this case, power supply voltage VBAT and system power supply voltage Vcc4 are substantially the same.
  • the output terminal SYS of the charging IC 2 is connected to the input terminal VIN of the step-up/step-down DC/DC converter 8 .
  • One end of a reactor La is connected to the switching terminal SW of the charging IC2.
  • the other end of the reactor La is connected to the output terminal SYS of the charging IC2.
  • a charge enable terminal CE ( ⁇ ) of the charge IC2 is connected to a terminal P22 of the MCU1 via a resistor.
  • the collector terminal of the bipolar transistor S1 is connected to the charge enable terminal CE ( ⁇ ) of the charge IC2.
  • the emitter terminal of the bipolar transistor S1 is connected to the output terminal VOUT of the LSW4 which will be described later.
  • the base terminal of bipolar transistor S1 is connected to the Q terminal of FF17.
  • one end of a resistor Rc is connected to the charge enable terminal CE ( ⁇ ) of the charge IC2.
  • the other end of the resistor Rc is connected to the output terminal VOUT of LSW4.
  • a resistor is connected to the input terminal VIN and enable terminal EN of the step-up/step-down DC/DC converter 8 .
  • the signal input to the enable terminal EN of the step-up/step-down DC/DC converter 8 is at a high level. Then, the step-up/step-down DC/DC converter 8 starts step-up operation or step-down operation.
  • the step-up/step-down DC/DC converter 8 steps up or steps down the system power supply voltage Vcc0 input to the input terminal VIN by switching control of the built-in transistor connected to the reactor Lb to generate the system power supply voltage Vcc1, and the output terminal VOUT.
  • Output from The output terminal VOUT of the buck-boost DC/DC converter 8 includes the feedback terminal FB of the buck-boost DC/DC converter 8, the input terminal VIN of the LSW 4, the input terminal VIN of the switch driver 7, the power supply terminal VCC and the D terminal of the FF 16. and connected to A wiring to which system power supply voltage Vcc1 output from output terminal VOUT of step-up/step-down DC/DC converter 8 is supplied is referred to as power supply line PL1.
  • the LSW4 When the signal input to the control terminal ON becomes high level, the LSW4 outputs the system power supply voltage Vcc1 input to the input terminal VIN from the output terminal VOUT.
  • the control terminal ON of LSW4 and the power supply line PL1 are connected via a resistor. Therefore, by supplying the system power supply voltage Vcc1 to the power supply line PL1, a high level signal is input to the control terminal ON of the LSW4.
  • the voltage output from LSW4 is the same as the system power supply voltage Vcc1 if wiring resistance and the like are ignored. Described as voltage Vcc2.
  • the output terminal VOUT of the LSW4 is connected to the power supply terminal VDD of the MCU1, the input terminal VIN of the LSW5, the power supply terminal VDD of the fuel gauge IC12, the power supply terminal VCC of the ROM6, the emitter terminal of the bipolar transistor S1, and the resistor Rc. , and the power supply terminal VCC of the FF 17 .
  • a wiring to which system power supply voltage Vcc2 output from output terminal VOUT of LSW4 is supplied is referred to as power supply line PL2.
  • the LSW5 When the signal input to the control terminal ON becomes high level, the LSW5 outputs the system power supply voltage Vcc2 input to the input terminal VIN from the output terminal VOUT.
  • a control terminal ON of LSW5 is connected to terminal P23 of MCU1.
  • the voltage output from LSW5 is the same as the system power supply voltage Vcc2 if wiring resistance and the like are ignored. Described as voltage Vcc3.
  • a wiring to which system power supply voltage Vcc3 output from output terminal VOUT of LSW5 is supplied is referred to as power supply line PL3.
  • a series circuit of a thermistor T2 and a resistor Rt2 is connected to the power supply line PL3, and the resistor Rt2 is connected to the ground line.
  • the thermistor T2 and the resistor Rt2 form a voltage dividing circuit, and their connection point is connected to the terminal P21 of the MCU1.
  • the MCU1 detects the temperature variation (resistance value variation) of the thermistor T2 based on the voltage input to the terminal P21, and determines the presence or absence of the puff operation based on the amount of temperature variation.
  • a series circuit of a thermistor T3 and a resistor Rt3 is connected to the power supply line PL3, and the resistor Rt3 is connected to the ground line.
  • the thermistor T3 and the resistor Rt3 form a voltage dividing circuit, and their connection point is connected to the terminal P13 of the MCU1 and the inverting input terminal of the operational amplifier OP2.
  • the MCU1 detects the temperature of the thermistor T3 (corresponding to the temperature of the heater HTR) based on the voltage input to the terminal P13.
  • a series circuit of a thermistor T4 and a resistor Rt4 is connected to the power supply line PL3, and the resistor Rt4 is connected to the ground line.
  • the thermistor T4 and the resistor Rt4 form a voltage dividing circuit, and the connection point between them is connected to the terminal P12 of the MCU1 and the inverting input terminal of the operational amplifier OP3.
  • the MCU1 detects the temperature of the thermistor T4 (corresponding to the temperature of the case 110) based on the voltage input to the terminal P12.
  • a source terminal of a switch S7 composed of a MOSFET is connected to the power supply line PL2.
  • the gate terminal of switch S7 is connected to terminal P20 of MCU1.
  • a drain terminal of the switch S7 is connected to one of a pair of connectors to which the vibration motor M is connected. The other of the pair of connectors is connected to the ground line.
  • the MCU1 can control the opening/closing of the switch S7 by manipulating the potential of the terminal P20, and vibrate the vibration motor M in a specific pattern.
  • a dedicated driver IC may be used instead of the switch S7.
  • a positive power supply terminal of the operational amplifier OP2 and a voltage dividing circuit Pd (a series circuit of two resistors) connected to the non-inverting input terminal of the operational amplifier OP2 are connected to the power supply line PL2.
  • a connection point between the two resistors forming the voltage dividing circuit Pd is connected to the non-inverting input terminal of the operational amplifier OP2.
  • the operational amplifier OP2 outputs a signal corresponding to the temperature of the heater HTR (signal corresponding to the resistance value of the thermistor T3).
  • the thermistor T3 since the thermistor T3 has the NTC characteristic, the higher the temperature of the heater HTR (the temperature of the thermistor T3), the lower the output voltage of the operational amplifier OP2.
  • the output of the voltage dividing circuit of the thermistor T3 and the resistor Rt3 is connected to the non-inverting input terminal of the operational amplifier OP2, and the dividing circuit is connected to the inverting input terminal of the operational amplifier OP2.
  • the output of the pressure circuit Pd may be connected.
  • a positive power supply terminal of the operational amplifier OP3 and a voltage dividing circuit Pe (a series circuit of two resistors) connected to the non-inverting input terminal of the operational amplifier OP3 are connected to the power supply line PL2.
  • a connection point between the two resistors forming the voltage dividing circuit Pe is connected to the non-inverting input terminal of the operational amplifier OP3.
  • the operational amplifier OP3 outputs a signal corresponding to the temperature of the case 110 (a signal corresponding to the resistance value of the thermistor T4).
  • the thermistor T4 having the NTC characteristic is used, so the higher the temperature of the case 110, the lower the output voltage of the operational amplifier OP3.
  • the output of the voltage dividing circuit of the thermistor T4 and the resistor Rt4 is connected to the non-inverting input terminal of the operational amplifier OP3, and the dividing circuit is connected to the inverting input terminal of the operational amplifier OP3.
  • the output of the pressure circuit Pe may be connected.
  • a resistor R1 is connected to the output terminal of the operational amplifier OP2.
  • a cathode of a diode D1 is connected to the resistor R1.
  • the anode of the diode D1 is connected to the output terminal of the operational amplifier OP3, the D terminal of the FF17, and the CLR ( ⁇ ) terminal of the FF17.
  • a connection line between the resistor R1 and the diode D1 is connected to a resistor R2 connected to the power supply line PL1. Also, the CLR ( ⁇ ) terminal of the FF 16 is connected to this connection line.
  • resistor R3 One end of a resistor R3 is connected to the connection line between the anode of the diode D1 and the output terminal of the operational amplifier OP3 and the D terminal of the FF17.
  • the other end of resistor R3 is connected to power supply line PL2.
  • the anode of the diode D2 connected to the notification terminal 12a of the fuel gauge IC12, the anode of the diode D3, and the CLR ( ⁇ ) terminal of the FF 17 are connected to this connection line.
  • the cathode of diode D3 is connected to terminal P5 of MCU1.
  • the FF16 When the temperature of the heater HTR becomes excessive and the signal output from the operational amplifier OP2 becomes low and the signal input to the CLR ( ⁇ ) terminal becomes low level, the FF16 outputs a high level signal from the Q ( ⁇ ) terminal. Input to terminal P11 of MCU1. A high-level system power supply voltage Vcc1 is supplied from the power supply line PL1 to the D terminal of the FF16. Therefore, in the FF 16, a low level signal continues to be output from the Q ( ⁇ ) terminal unless the signal input to the CLR ( ⁇ ) terminal operating in negative logic becomes low level.
  • the signal input to the CLR ( ⁇ ) terminal of the FF 17 is when the temperature of the heater HTR becomes excessive, when the temperature of the case 110 becomes excessive, and when an abnormality is detected from the notification terminal 12a of the fuel gauge IC 12.
  • the low-level signal shown When the low-level signal shown is output, it becomes low-level.
  • the FF 17 outputs a low level signal from the Q terminal when the signal input to the CLR ( ⁇ ) terminal becomes low level.
  • This low-level signal is input to terminal P10 of MCU1, the gate terminal of switch S6, the enable terminal EN of boost DC/DC converter 9, and the base terminal of bipolar transistor S1 connected to charging IC2. be.
  • the CE ( ⁇ ) terminal of the charging IC2 is of negative logic, the charging of the power source BAT is stopped. As a result, the heating of the heater HTR and the charging of the power supply BAT are stopped. Even if the MCU1 attempts to output a low-level enable signal from the terminal P22 to the charge enable terminal CE ( ⁇ ) of the charging IC2, when the bipolar transistor S1 is turned on, the amplified current is transferred from the collector terminal to the MCU1 and the charge enable terminal CE ( ⁇ ) of the charge IC2. Note that a high level signal is input to the charge enable terminal CE ( ⁇ ) of the charge IC2.
  • a high-level system power supply voltage Vcc2 is supplied from the power supply line PL2 to the D terminal of the FF17. Therefore, the FF 17 continues to output a high level signal from the Q terminal unless the signal input to the CLR ( ⁇ ) terminal operating in negative logic becomes low level.
  • a low level signal is output from the output terminal of the operational amplifier OP3
  • a low level signal is input to the CLR ( ⁇ ) terminal of the FF17 regardless of the level of the signal output from the output terminal of the operational amplifier OP2.
  • the low level signal output from the output terminal of the operational amplifier OP3 is not affected by the high level signal due to the diode D1. sea bream.
  • the high level signal is passed through the diode D1. signal.
  • the power line PL2 is further branched from the MCU mounting board 161 toward the LED mounting board 163 and the Hall IC mounting board 164 side.
  • the power terminal VDD of the hall IC 13, the power terminal VCC of the communication IC 15, and the power terminal VDD of the hall IC 14 are connected to the branched power line PL2.
  • the output terminal OUT of the Hall IC 13 is connected to the terminal P3 of the MCU1 and the terminal SW2 of the switch driver 7. When the outer panel 115 is removed, a low level signal is output from the output terminal OUT of the Hall IC 13 .
  • the MCU 1 determines whether or not the outer panel 115 is attached based on the signal input to the terminal P3.
  • a series circuit (a series circuit of a resistor and a capacitor) connected to the operation switch OPS is provided on the LED mounting board 163 .
  • This series circuit is connected to power supply line PL2.
  • a connection point between the resistor and the capacitor in this series circuit is connected to the terminal P4 of the MCU 1, the operation switch OPS, and the terminal SW1 of the switch driver 7.
  • FIG. When the operation switch OPS is not pressed, the operation switch OPS is not conductive, and the signals input to the terminal P4 of the MCU1 and the terminal SW1 of the switch driver 7 are at a high level due to the system power supply voltage Vcc2.
  • the operation switch OPS When the operation switch OPS is pressed and turned on, the signals input to the terminal P4 of the MCU 1 and the terminal SW1 of the switch driver 7 are connected to the ground line, and thus become low level.
  • the MCU1 detects the operation of the operation switch OPS from the signal input to the terminal P4.
  • the switch driver 7 is provided with a reset input terminal RSTB.
  • the reset input terminal RSTB is connected to the control terminal ON of LSW4.
  • the switch driver 7 By outputting a low level signal from the reset input terminal RSTB, the output operation of LSW4 is stopped.
  • the operation switch OPS which is originally pushed down via the pressing portion 117 of the outer panel 115, is directly pushed down by the user with the outer panel 115 removed, the signal is input to the terminals SW1 and SW2 of the switch driver 7. become low level.
  • FIG. 13 is a diagram for explaining the operation of the electric circuit in sleep mode.
  • FIG. 14 is a diagram for explaining the operation of the electric circuit in active mode.
  • FIG. 15 is a diagram for explaining the operation of the electric circuit in the heating initial setting mode.
  • FIG. 16 is a diagram for explaining the operation of the electric circuit during heating of the heater HTR in the heating mode.
  • FIG. 17 is a diagram for explaining the operation of the electric circuit when the temperature of the heater HTR is detected in the heating mode.
  • FIG. 18 is a diagram for explaining the operation of the electric circuit in charging mode.
  • FIG. 13 is a diagram for explaining the operation of the electric circuit in sleep mode.
  • FIG. 14 is a diagram for explaining the operation of the electric circuit in active mode.
  • FIG. 15 is a diagram for explaining the operation of the electric circuit in the heating initial setting mode.
  • FIG. 16 is a diagram for explaining the operation of the electric circuit during heating of the heater HTR in the heating mode.
  • FIG. 17 is a diagram for explaining the operation
  • FIGS. 13 to 19 are diagrams for explaining the operation of the electric circuit when the MCU 1 is reset (restarted).
  • the terminals surrounded by dashed ellipses have inputs or outputs such as the power supply voltage V BAT , the USB voltage V USB , and the system power supply voltage. It shows the terminals that have been made.
  • the power supply voltage V BAT is input to the power supply terminal VDD of the protection IC 10, the input terminal VIN of the step-up DC/DC converter 9, and the charging terminal bat of the charging IC 2.
  • FIG. 1 the power supply voltage V BAT is input to the power supply terminal VDD of the protection IC 10, the input terminal VIN of the step-up DC/DC converter 9, and the charging terminal bat of the charging IC 2.
  • MCU1 enables the V BAT power pass function of charging IC2 and disables the OTG function and charging function. Since the USB voltage VUSB is not input to the input terminal VBUS of the charging IC2, the VBAT power pass function of the charging IC2 is enabled. Since the signal for enabling the OTG function is not output from the MCU1 to the charging IC2 from the communication line LN, the OTG function is disabled. Therefore, the charging IC2 generates the system power supply voltage Vcc0 from the power supply voltage VBAT input to the charging terminal bat, and outputs it from the output terminal SYS.
  • the system power supply voltage Vcc0 output from the output terminal SYS is input to the input terminal VIN and enable terminal EN of the step-up/step-down DC/DC converter 8 .
  • the buck-boost DC/DC converter 8 is enabled by inputting a high-level system power supply voltage Vcc0 to an enable terminal EN of positive logic, generates a system power supply voltage Vcc1 from the system power supply voltage Vcc0, and outputs it to an output terminal VOUT.
  • Output from The system power supply voltage Vcc1 output from the output terminal VOUT of the buck-boost DC/DC converter 8 is applied to the input terminal VIN of the LSW4, the control terminal ON of the LSW4, the input terminal VIN of the switch driver 7, the power supply terminal VCC of the FF16, and the D terminal and , respectively.
  • the LSW4 When the system power supply voltage Vcc1 is input to the control terminal ON, the LSW4 outputs the system power supply voltage Vcc1 input to the input terminal VIN as the system power supply voltage Vcc2 from the output terminal VOUT.
  • the system power supply voltage Vcc2 output from the LSW4 is applied to the power supply terminal VDD of the MCU1, the input terminal VIN of the LSW5, the power supply terminal VDD of the Hall IC 13, the power supply terminal VCC of the communication IC 15, and the power supply terminal VDD of the Hall IC 14. is entered.
  • the system power supply voltage Vcc2 is the power supply terminal VDD of the fuel gauge IC12, the power supply terminal VCC of the ROM 6, the resistor Rc and the bipolar transistor S1 connected to the charge enable terminal CE ( ⁇ ) of the charging IC2, and the FF17. They are supplied to the power supply terminal VCC, the positive power supply terminal of the operational amplifier OP3, the voltage dividing circuit Pe, the positive power supply terminal of the operational amplifier OP2, and the voltage dividing circuit Pd.
  • the bipolar transistor S1 connected to the charging IC2 is off unless a low level signal is output from the Q terminal of the FF17. Therefore, the system power supply voltage Vcc2 generated by the LSW4 is also input to the charging enable terminal CE ( ⁇ ) of the charging IC2. Since the charge enable terminal CE ( ⁇ ) of the charge IC2 is of negative logic, the charge function of the charge IC2 is turned off in this state.
  • LSW 5 stops outputting system power supply voltage Vcc3, so power supply to electronic components connected to power supply line PL3 is stopped. Also, in the sleep mode, the OTG function of the charging IC 2 is stopped, so power supply to the LEDs L1 to L8 is stopped.
  • Fig. 14> When the MCU 1 detects that the signal input to the terminal P8 becomes high level from the sleep mode state of FIG. 13 and the slider 119 is opened, it inputs a high level signal from the terminal P23 to the control terminal ON of the LSW5. . As a result, the LSW 5 outputs the system power supply voltage Vcc2 input to the input terminal VIN from the output terminal VOUT as the system power supply voltage Vcc3. The system power supply voltage Vcc3 output from the output terminal VOUT of the LSW5 is supplied to the thermistor T2, the thermistor T3, and the thermistor T4.
  • the MCU1 detects that the slider 119 is opened, the MCU1 enables the OTG function of the charging IC2 via the communication line LN.
  • the charging IC2 outputs from the input terminal VBUS a system power supply voltage Vcc4 obtained by boosting the power supply voltage VBAT input from the charging terminal bat.
  • the system power supply voltage Vcc4 output from the input terminal VBUS is It is fed to the LEDs L1-L8.
  • Fig. 15> From the state of FIG. 14, when the signal input to the terminal P4 becomes low level (the operation switch OPS is pressed), the MCU1 performs various settings necessary for heating, and then boosts the voltage from the terminal P14. A high-level enable signal is input to the enable terminal EN of the DC/DC converter 9 . As a result, the step-up DC/DC converter 9 outputs the driving voltage V bst obtained by stepping up the power supply voltage V BAT from the output terminal VOUT. The drive voltage Vbst is supplied to switch S3 and switch S4. In this state, the switches S3 and S4 are off. Also, the switch S6 is turned on by the high-level enable signal output from the terminal P14.
  • the negative terminal of the heater HTR is connected to the ground line, and the heater HTR can be heated by turning on the switch S3.
  • the mode shifts to the heating mode.
  • Fig. 16> In the state of FIG. 15, the MCU1 starts switching control of the switch S3 connected to the terminal P16 and switching control of the switch S4 connected to the terminal P15. These switching controls may be automatically started when the heating initial setting mode described above is completed, or may be started by further pressing the operation switch OPS. Specifically, as shown in FIG. 16, the MCU 1 turns on the switch S3 and turns off the switch S4 to supply the driving voltage Vbst to the heater HTR to heat the heater HTR for generating aerosol. and temperature detection control for detecting the temperature of the heater HTR by turning off the switch S3 and turning on the switch S4 as shown in FIG.
  • the driving voltage Vbst is also supplied to the gate of the switch S5 to turn on the switch S5. Further, during heating control, the drive voltage Vbst that has passed through the switch S3 is also input to the positive power supply terminal of the operational amplifier OP1 via the resistor Rs.
  • the resistance value of the resistor Rs is negligibly small compared to the internal resistance value of the operational amplifier OP1. Therefore, during heating control, the voltage input to the positive power supply terminal of the operational amplifier OP1 is approximately equal to the drive voltage Vbst .
  • the resistance value of the resistor R4 is greater than the ON resistance value of the switch S5.
  • the switch S5 is turned on during heating control.
  • the output voltage of the operational amplifier OP1 is divided by the voltage dividing circuit of the resistor R4 and the switch S5 and input to the terminal P9 of the MCU1. Since the resistance value of the resistor R4 is higher than the ON resistance value of the switch S5, the voltage input to the terminal P9 of the MCU1 is sufficiently reduced. This can prevent a large voltage from being input from the operational amplifier OP1 to the MCU1.
  • Fig. 17> As shown in FIG. 17, during temperature detection control, the driving voltage Vbst is input to the positive power supply terminal of the operational amplifier OP1 and also to the voltage dividing circuit Pb. The voltage divided by the voltage dividing circuit Pb is input to the terminal P18 of the MCU1. Based on the voltage input to the terminal P18, the MCU1 acquires the reference voltage V temp applied to the series circuit of the resistor Rs and the heater HTR during temperature detection control.
  • the driving voltage V bst (reference voltage V temp ) is supplied to the series circuit of the resistor Rs and the heater HTR.
  • a voltage V heat obtained by dividing the driving voltage V bst (reference voltage V temp ) by the resistor Rs and the heater HTR is input to the non-inverting input terminal of the operational amplifier OP1. Since the resistance value of the resistor Rs is sufficiently higher than the resistance value of the heater HTR, the voltage V heat is sufficiently lower than the driving voltage V bst .
  • the switch S5 is turned off by supplying the low voltage V heat to the gate terminal of the switch S5.
  • the operational amplifier OP1 amplifies and outputs the difference between the voltage input to the inverting input terminal and the voltage V heat input to the non-inverting input terminal.
  • the output signal of operational amplifier OP1 is input to terminal P9 of MCU1.
  • the MCU1 obtains the temperature of the heater HTR based on the signal input to the terminal P9, the reference voltage V temp obtained based on the input voltage of the terminal P18, and the known electrical resistance value of the resistor Rs. . Based on the acquired temperature of the heater HTR, the MCU 1 performs heating control of the heater HTR (for example, control so that the temperature of the heater HTR becomes a target temperature).
  • the MCU 1 can obtain the temperature of the heater HTR even during periods when the switches S3 and S4 are turned off (periods when the heater HTR is not energized). Specifically, the MCU1 obtains the temperature of the heater HTR based on the voltage input to the terminal P13 (the output voltage of the voltage dividing circuit composed of the thermistor T3 and the resistor Rt3).
  • the MCU 1 can acquire the temperature of the case 110 at any timing. Specifically, the MCU1 obtains the temperature of the case 110 based on the voltage input to the terminal P12 (the output voltage of the voltage dividing circuit composed of the thermistor T4 and the resistor Rt4).
  • FIG. 18 exemplifies a case where a USB connection is made in sleep mode.
  • the USB voltage VUSB is input to the input terminal VIN of LSW3 via the overvoltage protection IC11.
  • the USB voltage V USB is also supplied to a voltage dividing circuit Pf connected to the input terminal VIN of LSW3. Since the bipolar transistor S2 is ON immediately after the USB connection is made, the signal input to the control terminal ON of the LSW3 remains at a low level.
  • the USB voltage V USB is also supplied to the voltage dividing circuit Pc connected to the terminal P17 of the MCU1, and the voltage divided by this voltage dividing circuit Pc is input to the terminal P17.
  • the MCU1 detects that the USB connection has been made based on the voltage input to the terminal P17.
  • the MCU1 When the MCU1 detects that the USB connection has been made, the MCU1 turns off the bipolar transistor S2 connected to the terminal P19.
  • the USB voltage VUSB divided by the voltage dividing circuit Pf is input to the control terminal ON of the LSW3.
  • a high-level signal is input to the control terminal ON of LSW3, and LSW3 outputs the USB voltage VUSB from the output terminal VOUT.
  • the USB voltage VUSB output from LSW3 is input to the input terminal VBUS of charging IC2.
  • the USB voltage V_USB output from LSW3 is directly supplied to LEDs L1 to L8 as system power supply voltage Vcc4.
  • the MCU1 When the MCU1 detects that the USB connection has been established, the MCU1 further outputs a low-level enable signal from the terminal P22 to the charge enable terminal CE( ⁇ ) of the charge IC2. As a result, the charging IC 2 enables the charging function of the power supply BAT, and starts charging the power supply BAT with the USB voltage VUSB input to the input terminal VBUS.
  • the MCU1 When the USB connection is made in the active mode, when the MCU1 detects that the USB connection is made, it turns off the bipolar transistor S2 connected to the terminal P19. A low-level enable signal is output to the charge enable terminal CE ( ⁇ ) of , and the OTG function of the charge IC 2 is turned off by serial communication using the communication line LN. As a result, the system power supply voltage Vcc4 supplied to the LEDs L1 to L8 is switched from the voltage generated by the OTG function of the charging IC 2 (voltage based on the power supply voltage VBAT) to the USB voltage VUSB output from the LSW3. . The LEDs L1 to L8 do not operate unless the MCU1 turns on the built-in transistors. This prevents an unstable voltage from being supplied to the LEDs L1-L8 during the on-to-off transition of the OTG function.
  • the supply state of the system power supply voltage in the charge mode is the same as in the sleep mode. However, it is preferable that the supply state of the system power supply voltage in the charge mode be the same as in the active mode shown in FIG. That is, in the charging mode, it is preferable that the system power supply voltage Vcc3 is supplied to the thermistors T2 to T4 for temperature control, which will be described later.
  • the switch driver 7 outputs a low-level signal from the reset input terminal RSTB when it reaches a predetermined time, or when the signal input to either the terminal SW1 or the terminal SW2 becomes high level, the reset input terminal RSTB is output. return the signal output from to high level. As a result, the control terminal ON of LSW4 becomes high level, and the state in which the system power supply voltage Vcc2 is supplied to each part is restored.
  • the thermistor T1 described above is also referred to as the power supply thermistor T1
  • the thermistor T2 described above is referred to as the puff thermistor T2
  • the thermistor T3 described above is also referred to as the heater thermistor T3.
  • the thermistor T4 that has been formed is also described as a case thermistor T4.
  • FIG. 20 is a diagram showing a schematic configuration inside the charging IC 2. As shown in FIG.
  • the charging IC 2 includes a processor 21, a gate driver 22, and switches Q1 to Q4 configured by N-channel MOSFETs.
  • a source terminal of the switch Q1 is connected to the input terminal VBUS.
  • the drain terminal of switch Q1 is connected to the drain terminal of switch Q2.
  • a source terminal of the switch Q2 is connected to the switching terminal SW.
  • a drain terminal of the switch Q3 is connected to a connection node between the switch Q2 and the switching terminal SW.
  • a source terminal of the switch Q3 is connected to the ground terminal GND.
  • a drain terminal of the switch Q4 is connected to the output terminal SYS.
  • a source terminal of the switch Q4 is connected to the charging terminal bat.
  • the gate driver 22 is connected to the gate terminal of the switch Q2 and the gate terminal of the switch Q3, and performs on/off control of the switches Q2 and Q3 based on commands from the processor 21.
  • the processor 21 is connected to the gate driver 22, the gate terminal of the switch Q1, the gate terminal of the switch Q4, and the charge enable terminal CE( ⁇ ).
  • the processor 21 performs on/off control of the switches Q2 and Q3 and on/off control of the switches Q1 and Q4 via the gate driver 22 .
  • the charging IC 2 has a V USB power pass function and a V USB & V BAT power pass function in addition to the above-described charging function, V BAT power pass function, and OTG function.
  • V USB power pass function and a V USB & V BAT power pass function in addition to the above-described charging function, V BAT power pass function, and OTG function.
  • the contents of control inside the charging IC 2 when these functions are enabled will be described below.
  • the specific numerical values of the various voltages described above are preferably the values shown below.
  • V BAT full charge voltage
  • V BAT nominal voltage
  • Vcc1 3.3V System power supply voltage
  • Vcc2 3.3V System power supply voltage
  • Vcc3 3.3V System power supply voltage
  • Vcc4 5.0V USB voltage
  • V USB 5.0V Drive voltage
  • V bst 4.9V
  • the processor 21 performs on/off control of the switches Q2 and Q4 while controlling the switch Q1 to be on and the switch Q3 to be off. ON/OFF control of the switch Q4 is performed to adjust the charging current of the power supply BAT.
  • the processor 21 performs on/off control of the switch Q2 so that the voltage of the output terminal SYS is the same as the voltage suitable for charging the power supply BAT.
  • the USB voltage VUSB input to the input terminal VBUS is stepped down and output from the output terminal SYS.
  • the voltage output from the output terminal SYS is input to the input terminal VIN of the buck-boost DC/DC converter 8 as the system power supply voltage Vcc0, and is output from the charging terminal bat of the charging IC2.
  • the power supply BAT is charged by the voltage obtained by stepping down the USB voltage VUSB.
  • the system power supply voltage Vcc0 finally becomes the same value as the full charge voltage of the power supply BAT. Therefore, the buck-boost DC/DC converter 8 steps down the 4.2V system power supply voltage Vcc0 input to the input terminal VIN to generate and output the 3.3V system power supply voltage Vcc1.
  • the potential of the input terminal VBUS is higher than the potential of the output terminal SYS in the charging IC2, so that the power from the power supply BAT is not output from the input terminal VBUS.
  • V USB power pass function The V USB power path function is effective, for example, when the power supply BAT cannot be used due to overdischarge or the like.
  • the processor 21 turns on the switch Q1, turns on the switch Q2, turns off the switch Q3, and turns off the switch Q4.
  • the USB voltage VUSB input to the input terminal VBUS is directly output from the switching terminal SW without being stepped down.
  • the voltage output from the switching terminal SW is input to the input terminal VIN of the step-up/step-down DC/DC converter 8 as the system power supply voltage Vcc0.
  • the step-up/step-down DC/DC converter 8 steps down the 5V system power supply voltage Vcc0 input to the input terminal VIN to generate and output the 3.3V system power supply voltage Vcc1.
  • the processor 21 may perform on/off control of the switch Q2 in a state in which the switch Q1 is turned on, the switch Q3 is turned off, and the switch Q4 is turned on. good.
  • the charging IC 2 and the step-up/step-down DC/DC converter 8 can share the step-down from the USB voltage VUSB of 5.0V to the system power supply voltage Vcc1 of 3.3V. Therefore, concentration of load and heat on the step-up/step-down DC/DC converter 8 can be suppressed.
  • V USB & V BAT power pass function The V USB & V BAT power pass function is valid, for example, when the charging of the power supply BAT is completed and the USB connection is continued.
  • the processor 21 performs on/off control of the switch Q2 while controlling the switch Q1 to be on, the switch Q3 to be off, and the switch Q4 to be on.
  • the processor 21 controls the switch Q2 so that the voltage of the output terminal SYS becomes the same as the voltage of the power supply BAT (power supply voltage V BAT ).
  • the USB voltage VUSB input to the input terminal VBUS is stepped down and output from the output terminal SYS.
  • the voltage output from the output terminal SYS after stepping down the USB voltage VUSB input to the input terminal VBUS and the voltage output from the output terminal SYS from the power supply BAT via the charging terminal bat have the same value. Therefore, the power including the voltage obtained by stepping down the USB voltage V USB and the power including the power supply voltage V BAT output from the output terminal SYS are synthesized, and the input terminal VIN of the step-up/step-down DC/DC converter 8 is supplied to the input terminal VIN. supplied.
  • the V USB & V BAT power pass function is enabled, the potential of the input terminal VBUS is higher than the potential of the output terminal SYS in the charging IC2, so the power from the power supply BAT is not output from the input terminal VBUS. .
  • the buck-boost DC/DC converter 8 determines whether to step up or down depending on the magnitude of the power supply voltage V BAT .
  • the step-up/down DC/DC converter 8 steps down the system power supply voltage Vcc0 input to the input terminal VIN to generate a 3.3 V system power supply voltage Vcc1. output.
  • the buck-boost DC/DC converter 8 boosts the system power supply voltage Vcc0 input to the input terminal VIN to generate a system power supply voltage Vcc1 of 3.3 V. output.
  • V BAT power pass function The V BAT power path function is enabled in modes other than charge mode (eg, sleep mode).
  • the processor 21 turns off the switches Q1 and Q3.
  • the power supply voltage V BAT input to the charging terminal bat is directly output from the output terminal SYS and input to the input terminal VIN of the step-up/step-down DC/DC converter 8 as the system power supply voltage Vcc0.
  • the power transmission path between the input terminal VBUS of the charging IC2 and the switching terminal SW is blocked by the parasitic diode of the switch Q1. Therefore, the power supply voltage VBAT output from the output terminal SYS is not output from the input terminal VBUS.
  • the buck-boost DC/DC converter 8 determines whether to step up or down depending on the magnitude of the power supply voltage V BAT .
  • the step-up/down DC/DC converter 8 steps down the power supply voltage V BAT to generate a 3.3 V system power supply voltage Vcc1. output.
  • the step-up/step-down DC/DC converter 8 boosts the power supply voltage V BAT to generate a system power supply voltage Vcc1 of 3.3 V. output.
  • OTG function The OTG feature is enabled at the same time as the V BAT power path feature, eg, enabled in active mode.
  • the processor 21 turns on/off the switch Q3 while turning on the switch Q1.
  • the power supply voltage V BAT input to the charging terminal bat is directly output from the output terminal SYS and input to the input terminal VIN of the step-up/step-down DC/DC converter 8 as the system power supply voltage Vcc0.
  • the power supply voltage V BAT output from the output terminal SYS is input to the switching terminal SW of the charging IC2.
  • Processor 21 controls switch Q3 so that power supply voltage VBAT input to switching terminal SW becomes equal to system power supply voltage Vcc4 .
  • the power supply voltage VBAT input to the switching terminal SW is stepped up and output from the input terminal VBUS.
  • the voltage output from the input terminal VBUS is input to the LEDs L1 to L8 as the system power supply voltage Vcc4.
  • the charging IC 2 has both a function as a step-down converter that steps down the USB voltage VUSB and a function as a step-up converter that steps up the power supply voltage VBAT.
  • the voltage input from the charging IC 2 to the step-up/down DC/DC converter 8 fluctuates in various ways according to the functions enabled by the charging IC 2 .
  • the system power supply voltage Vcc1 power including the system power supply voltage Vcc1 can be kept constant by selectively stepping up or stepping down the step-up/step-down DC/DC converter 8. can.
  • the buck-boost DC/DC converter 8 When the voltage of the system power supply voltage Vcc0 input to the input terminal VIN of the buck-boost DC/DC converter 8 is equal to the voltage of the system power supply voltage Vcc1 of 3.3 V, the buck-boost DC/DC converter 8 The system power supply voltage Vcc0 is output from the output terminal VOUT as the system power supply voltage Vcc1 without stepping down.
  • the temperature of the power supply BAT (hereinafter referred to as power supply temperature TBAT) can be obtained from the resistance value (output value) of the power supply thermistor T1
  • the temperature of the heater HTR can be obtained from the resistance value (output value) of the heater thermistor T3.
  • a temperature (hereinafter referred to as heater temperature THTR ) can be obtained
  • a temperature of the case 110 (hereinafter referred to as case temperature T CASE ) can be obtained from the resistance value (output value) of the case thermistor T4.
  • the aspirator 100 when at least one of the power supply temperature T BAT , the heater temperature T HTR , and the case temperature T CASE becomes far from the value under the recommended environment in which the aspirator 100 is used, the aspirator 100 , and protection control to prohibit charging of the power source BAT and discharging from the power source BAT to the heater HTR (hereinafter also referred to as charging and discharging) to enhance safety.
  • This protection control is performed by MCU1 and FF17.
  • Protection control that prohibits charging/discharging refers to controlling an electronic component so that charging/discharging is disabled.
  • a low level signal is input to the enable terminal EN of the boost DC/DC converter 9 (or the potential of the enable terminal EN is made unfixed) to start the boost operation.
  • a low level signal is input to the gate terminal of the switch S6 (or the potential of the gate terminal is made unfixed) to cut off the connection between the heater connector Cn(-) on the negative electrode side and the ground.
  • the operation mode is further restricted when protection control is performed.
  • the operation mode is limited when protection control is performed.
  • the operation mode since the operation mode is managed by the MCU1, the operation mode need not be restricted when the MCU1 is not operating for some reason.
  • the protection control performed in the aspirator 100 includes manual return protection control that can be terminated by resetting the MCU 1 by user operation, and automatic recovery control that does not require resetting the MCU 1 and can be automatically terminated by improving the temperature environment. automatic revertive protection control and non-terminating non-revertive protection control.
  • the operating modes of the suction device 100 include an error mode and a permanent error mode in addition to those described with reference to FIG. In this specification, when we refer to "all operating modes of the aspirator", we mean all operating modes (all operating modes shown in FIG. 9) except for these error modes and permanent error modes.
  • the aspirator 100 shifts to error mode and cannot shift to other operation modes.
  • the state of the power supply voltage supply state of the system power supply voltage
  • the functions that can be executed in the previous operation mode for example, acquisition of temperature information, etc.
  • the functions that can be executed in the previous operation mode for example, acquisition of temperature information, etc.
  • the operation mode can be changed by user operation or the like.
  • the aspirator 100 shifts to permanent error mode.
  • permanent error mode all functions of the aspirator 100 are disabled and the aspirator 100 must be repaired or scrapped.
  • the MCU 1 outputs a low level signal from the terminal P14 to stop the boosting operation of the boost DC/DC converter 9 and cut off the connection between the heater connector Cn(-) on the negative electrode side and the ground. Protection control is performed by outputting a level signal and stopping the charging operation of the charging IC2. When only charging is prohibited, there is no need to output a low level signal from the terminal P14, and when only discharging is prohibited, there is no need to output a high level signal from the terminal P22.
  • the FF 17 outputs a low level signal from the Q terminal to stop the boost operation of the boost DC/DC converter 9, cut off the connection between the heater connector Cn (-) on the negative electrode side and the ground, and turn on the bipolar transistor S1. By stopping the charging operation of the charging IC 2 , protection control is performed without going through the MCU 1 .
  • the FF 17 outputs a low level signal from the Q terminal when the signal input to the CLR ( ⁇ ) terminal switches from high level to low level. This low level signal is also input to the P10 terminal of MCU1. While the low level signal is input to the terminal P10, the MCU1 does not switch the signal input to the CLK terminal (not shown) of the FF17 from low level to high level. In other words, the CLK signal of FF17 does not rise while the low level signal is being input to the terminal P10. Further, when the MCU 1 is frozen, for example, the signal input to the CLK terminal (not shown) of the FF 17 remains at low level.
  • the MCU1 regardless of whether the MCU1 is in a normal operating state or a frozen state, after a low level signal is output from the Q terminal of FF17, it is input to the CLR ( ⁇ ) terminal of FF17. A low level signal continues to be output from the Q terminal of FF 17 even if the signal on the output switches from low level to high level.
  • the FF17 is restarted (the system power supply voltage Vcc2 is turned on again). Since the reset MCU1 operates in the sleep mode, the system power supply voltage Vcc3 is not applied to the heater thermistor T3 and the case thermistor T4, and the outputs of the operational amplifiers OP2 and OP3 both become high level.
  • a high level signal is input to the D terminal and the CLR ( ⁇ ) terminal of the FF17.
  • the MCU1 causes the CLK signal of FF17 to rise.
  • the output of the Q terminal of FF17 can be returned to high level.
  • the output of the Q terminal of FF17 returns to high level, thereby ending the protection control by FF17.
  • the signal output from the Q terminal of FF17 is also input to terminal P10 of MCU1. Therefore, the MCU1 can detect that the FF17 has performed the protection control from the low-level signal input to the terminal P10.
  • the MCU1 preferably causes the notification unit 180 to notify the reset request of the MCU1 and shifts to the error mode.
  • Fig. 21 is a circuit diagram of the essential part of the electric circuit shown in Fig. 10, showing the main electronic components that are related to the reset operation of the MCU1.
  • FIG. 21 additionally shows a motor connector Cn(m) and a resistor R7, which were not labeled in FIG.
  • a vibration motor M is connected to the motor connector Cn(m).
  • the motor connector Cn(m) is connected in parallel to the power terminal VDD of MCU1 via switch S7. Therefore, when the supply of the system power supply voltage Vcc2 to the power supply terminal VDD of the MCU1 is stopped, the supply of the operating voltage to the vibration motor M is also stopped.
  • the resistor R7 has one end connected to a node connecting the control terminal ON of the LSW4 and the reset input terminal RSTB of the switch driver 7, and the other end connected to the input terminal VIN of the switch driver 7.
  • the MCU1 is reset by stopping the supply of the system power supply voltage Vcc2, which is the operating voltage of the MCU1, to the power supply terminal VDD of the MCU1, and then restarting the supply.
  • the system power supply voltage Vcc2 is output from the output terminal VOUT of the LSW4 when the LSW4 is closed (the electrical connection between the input terminal VIN and the output terminal VOUT is closed). be done.
  • system power supply voltage Vcc2 is not output from output terminal VOUT of LSW4 when LSW4 is open (electrical connection between input terminal VIN and output terminal VOUT is interrupted).
  • a switch driver 7 controls the opening and closing of the LSW 4 .
  • the MCU 1 can be reset by the switch driver 7 controlling the opening and closing of the LSW 4.
  • the input terminal VIN of each of the LSW 4 and the switch driver 7 receives the system power supply voltage Vcc1. Therefore, when the system power supply voltage Vcc1 is generated in the step-up/step-down DC/DC converter 8, the LSW 4 and the switch driver 7 operate simultaneously.
  • the switch driver 7 incorporates, for example, a switch provided between the reset input terminal RSTB and the ground terminal GND. When this switch is closed, the potential of the reset input terminal RSTB is ground level (low level). becomes.
  • the input terminal VIN and reset input terminal RSTB of the switch driver 7 are connected in parallel via a resistor R7.
  • a control terminal ON for controlling the opening and closing of LSW 4 is connected to the output terminal VOUT of the step-up/down DC/DC converter 8 via a resistor R 7 and to the reset input terminal RSTB of the switch driver 7 . Therefore, when the switch built in the switch driver 7 is open, a high level voltage based on the system power supply voltage Vcc1 is input to the control terminal ON of LSW4.
  • the switch driver 7 controls the opening/closing of the LSW4 by controlling the potential of the reset input terminal RSTB.
  • the switch driver 7 controls the potential of the reset input terminal RSTB based on the voltage input to the terminal SW1 and the voltage input to the terminal SW2.
  • the voltage input to the terminal SW1 is low level (ground level) when the operation switch OPS is pressed, and is high level when the operation switch OPS is not pressed.
  • the voltage input to the terminal SW2 becomes low level when the outer panel 115 is removed from the inner panel 118, and becomes high level when the outer panel 115 is attached to the inner panel 118.
  • the switch driver 7 satisfies the panel condition that the outer panel 115 is removed from the inner panel 118, and also satisfies the switch operation condition that the operation switch OPS is pressed for a predetermined time (hereinafter referred to as reset operation time). If so, the reset process for resetting the MCU1 is started.
  • a state in which both the panel condition and the switch operation condition are satisfied is defined as a state in which the restart condition is satisfied.
  • a state in which the operation switch OPS continues to be pressed after both the panel condition and the switch operation condition are satisfied is defined as a state in which the restart condition continues to be satisfied.
  • the reset process waits for a predetermined delay time td of 0 seconds or more, then closes the switch built in the switch driver 7 to control the LSW 4 to be open, and then closes the switch for a predetermined time. is reached, the switch is opened to return LSW4 to the closed state.
  • the switch driver 7 waits for the elapse of the reset operation time. If so, it returns to the standby state without executing reset processing.
  • the switch driver 7 opens the built-in switch when the time for which the built-in switch is closed reaches a predetermined time regardless of whether the restart condition is satisfied. to end the reset process.
  • the restart condition is satisfied by satisfying the panel condition and continuing to press the operation switch OPS until the time during which the switch built into the switch driver 7 is closed reaches the predetermined time. Even after continuing, the switch driver 7 opens the built-in switch to return the LSW 4 to the closed state.
  • the above-mentioned reset operation time is the pressing duration of the operation switch OPS (hereinafter referred to as the heating start operation time) necessary for transitioning from the active mode to the heating setting mode (to instruct the start of heating of the rod 500 by the heater HTR). It is preferable to set the value to be different from that described above). By doing so, in order to reset the MCU1, an operation different from the operation for executing the aerosol generation, which should be frequently performed, is required. Therefore, the MCU1 can be reset under the user's clear intention. Moreover, it is more preferable to set the reset operation time to a value longer than the heating start operation time. By doing so, the MCU1 can be reset under the clearer intention of the user.
  • the heating start operation time is 1 second and the reset operation time is 5 seconds. These numerical values are examples and are not limited to these.
  • the notification unit 180 (vibration motor M and LED L1 to L8) to cause the notification unit 180 to notify the user.
  • LEDs L1 to L8 may be lit in a predetermined pattern, the vibration motor M may be vibrated, or a combination thereof may be used. This notification enables the user to recognize that the MCU1 will be reset by continuing the current operation. Note that the MCU 1 may execute this notification or a notification different from this notification while waiting for the reset operation time to elapse.
  • the MCU 1 when the delay time td is set to a value greater than 0, the MCU 1 preferably completes the notification by the notification unit 180 accompanying the start of the reset process before the delay time td elapses. . By doing so, the user can recognize that the reset of the MCU1 will soon start due to the completion of the notification. Of course, the above notification by the notification unit 180 may be continued until the above delay time td elapses. Even in this case, since the vibration motor M is operated by the system power supply voltage Vcc2, the notification is completed at the same time as the supply of the system power supply voltage Vcc2 to the MCU1 is stopped. .
  • the heater HTR may be overheated.
  • the output voltage of the operational amplifier OP2 becomes low level.
  • This low-level voltage is input to the CLR ( ⁇ ) terminal of FF16.
  • the FF 16 makes the output of the Q terminal low level when the signal input to the CLR ( ⁇ ) terminal becomes low level.
  • the Q(-) terminal of FF16 is a terminal for outputting a voltage obtained by inverting the output of the Q terminal of FF16. Therefore, the FF 16 outputs a high level signal from the Q( ⁇ ) terminal when the signal input to the CLR( ⁇ ) terminal becomes low level.
  • the signal input to the CLR ( ⁇ ) terminal of the FF16 is at high level. Therefore, in the normal state, the FF 16 outputs from the Q terminal a low level voltage obtained by inverting the high level voltage (system power supply voltage Vcc1) input to the D terminal.
  • the restarted MCU1 detects that the temperature of the heater HTR has become excessive, executes protection control, and changes the operation mode to a permanent error. mode. That is, the protection control executed here is non-recovery protection control. As described above, even when the heater HTR overheats as a result of the MCU1 freezing, the MCU1 can be returned to normal operation by resetting, and the operation mode can be changed to the permanent error mode. As a result, the suction device 100 can be disabled, and safety can be improved.
  • the switch driver 7 satisfies both the switch operation condition related to the operation of the operation switch OPS and the panel condition different from the operation of the operation switch OPS. Then, the LSW4 is opened and closed to reset the MCU1.
  • Techniques for resetting a controller when a single condition is met are well known. However, in the aspirator 100, the MCU1 is reset when a plurality of conditions are met. Therefore, resetting of the MCU 1 due to an erroneous operation or some kind of shock is suppressed, and the MCU 1 can be reset only when necessary.
  • the MCU1 when the outer panel 115 is attached to the inner panel 118, even if the operation switch OPS is kept pressed, the MCU1 is not reset. By continuing to press the operation switch OPS only when the outer panel 115 is removed from the inner panel 118, the MCU1 is reset. In this way, by switching the functions that can be realized by the same operation member depending on whether the outer panel 115 is attached or not, the number of operation members can be reduced, and operability can be improved and costs can be reduced.
  • the MCU 1 detects that the outer panel 115 has been removed from the inner panel 118, it is preferable to cause the notification unit 180 to make a notification. By doing so, in order to reset the MCU1, it is necessary to further operate the operation switch OPS while the panel condition is being notified. Therefore, the MCU 1 can be reset under the clear intention of the user.
  • the MCU 1 detects that the outer panel 115 has been removed from the inner panel 118, it is preferable to disable discharge from the power supply BAT to the heater HTR.
  • the outer panel 115 is not attached, the heat generated by the heating unit 170 is easily transmitted to the user, and thus safety can be improved by doing so.
  • FIG. 22 is a cross-sectional view of the aspirator 100 shown in FIG. 1 taken along a plane through the case thermistor T4.
  • the heating unit 170 includes a cylindrical rod housing portion 172 having a heat insulating function, a cylindrical heater support member 174 disposed inside the rod housing portion 172, and a heater support member 174 inside the heater support member 174. and a cylindrical heater HTR supported on the peripheral surface.
  • the heater HTR has a substantially elliptical cross-sectional shape perpendicular to the vertical direction. More specifically, the heater HTR includes flat portions H1 and H2 that are spaced apart in the front-rear direction and face each other and extend in the vertical direction, and a curved portion H3 that connects the right end of the flat portion H1 and the right end of the flat portion H2. , and a curved portion H4 connecting the left end of the flat portion H1 and the left end of the flat portion H2.
  • a substantially elliptical shape may be formed by using a curved portion having a curvature different from that of the curved portions H3 and H4 instead of the flat portions H1 and H2.
  • a part of the rod 500 is accommodated in the space 170A surrounded by the elliptical heater HTR.
  • the outer shape of rod 500 is circular, and the diameter of rod 500 is greater than the distance between flat portion H1 and flat portion H2 in the front-rear direction. Therefore, the rod 500 inserted into the space 170A is crushed in the front-rear direction by the flat portion H1 and the flat portion H2.
  • the heating unit 170 As shown in FIG. 21, the contact area between the rod 500 and the heater HTR can be increased, and the rod 500 can be efficiently heated.
  • the MCU1 can be reset regardless of whether the rod 500 is inserted into this space 170A.
  • the MCU 1 freezes before the rod 500 inserted through the opening 132 (see FIG. 2) is heated, and no aerosol is generated.
  • the MCU 1 instead of removing the rod 500 from the opening 132 and closing the slider 119, the MCU 1 can be operated by simply removing the outer panel 115 and pressing the operation switch OPS while the rod 500 remains inserted. can be reset. After the MCU 1 returns to the active mode by resetting, the user attaches the outer panel 115 and presses the operation switch OPS for the heating start operation time. This will execute the aerosol generation that was not executed. In this way, the MCU 1 can be reset without inserting and withdrawing the rod 500, in other words, opening and closing the slider 119, thereby reducing the burden on the user and improving usability.
  • a power supply (power supply BAT); a heater connector (heater connector Cn) to which a heater (heater HTR) that consumes power supplied from the power source and heats the aerosol source (rod 500) is connected; a controller (MCU1) configured to be able to control the supply of power from the power supply to the heater; a user-operable operation unit (operation switch OPS); and a restart circuit (switch driver 7) capable of restarting the controller, The restart circuit restarts the controller only when the operation unit is operated and a predetermined condition (that the outer panel 115 is removed) different from the operation of the operation unit is satisfied.
  • Power supply unit for the aerosol generator for the aerosol generator.
  • the controller is not restarted unless a predetermined condition is satisfied in addition to the operation on the operation unit. Therefore, restarting of the controller due to an erroneous operation or some kind of shock is suppressed, and the controller can be restarted only when necessary.
  • the power supply unit of the aerosol generator A notification unit (notification unit 180) that notifies the user,
  • the controller is configured to notify the notification unit of an error when the operation unit is not operated and the predetermined condition (the outer panel 115 is removed) is satisfied.
  • Power supply unit for the aerosol generator for the aerosol generator.
  • the power supply unit of the aerosol generator The predetermined condition is not satisfied at one or both of the time when the power source starts to supply power to the heater and when the power source continues to supply power to the heater. Power supply unit for the aerosol generator.
  • a power supply unit for an aerosol generator according to any one of (1) to (3), The controller is configured to start supplying power from the power supply to the heater when the operation unit is operated in a state where the predetermined condition is not satisfied (a state in which the outer panel 115 is attached). to be Power supply unit for the aerosol generator.
  • the operation unit for restarting the controller and the operation unit for starting heating can be shared, so the cost and size of the aerosol generator can be reduced.
  • the power supply unit of the aerosol generator The operation of the operation unit (pressing of the operation switch OPS during the reset operation time) necessary for the restart circuit to restart the controller is necessary for starting power supply from the power source to the heater. Different from the operation of the operation unit (pressing the operation switch OPS for the heating start operation time), Power supply unit for the aerosol generator.
  • the power supply unit of the aerosol generator The first time (5 seconds) for operating the operation unit necessary for the restart circuit to restart the controller is the operation unit necessary for starting power supply from the power source to the heater. Different from the second time (1 second) to operate the Power supply unit for the aerosol generator.
  • restarting the controller requires a longer operation than the operation for executing aerosol generation, which should be performed frequently. Therefore, the controller can be restarted under the clear intention of the user.
  • a power supply unit for an aerosol generator according to any one of (1) to (7), a case (case main body 112 and inner panel 118) housing the power supply, the heater connector, the controller, and the operation unit; A surface member (outer panel 115) that is detachable from the case and that forms the surface of the power supply unit of the aerosol generating device when attached to the case, the predetermined condition is that the surface member is removed; Power supply unit for the aerosol generator.
  • a power supply unit for an aerosol generator according to any one of (1) to (9), an insertion port (opening 132); the heater capable of heating the aerosol source through the insertion port; An opening and closing member (slider 119) capable of opening and closing the insertion port, The operation of the opening/closing member is irrelevant to the predetermined condition. Power supply unit for the aerosol generator.
  • the power unit of the aerosol generator operates in a first mode (active mode) in which the heater can heat the aerosol source, and in a second mode (sleep mode) in which power consumption is lower than that in the first mode. is possible and
  • the above controller is It is possible to detect the operation of the opening and closing member, Triggered by the opening of the insertion opening by the opening/closing member, the transition from the second mode to the first mode is performed; Power supply unit for the aerosol generator.
  • the aerosol source is brought into a heatable state based on the operation indicating that the user desires to generate an aerosol, so the usability of the aerosol generation device is improved.
  • the heater has an elliptical shape in a plane perpendicular to the direction in which the aerosol source is inserted, Power supply unit for the aerosol generator.
  • the elliptical heater improves the contact area between the aerosol source and the heater, it takes time to insert and remove the aerosol source. However, since this trouble is not necessary for restarting the controller, the operation required for restarting the controller does not become excessively troublesome.

Abstract

La présente invention ne fonctionne que lorsqu'il est nécessaire de redémarrer un dispositif de commande.　Un dispositif d'aspiration (100) comprend : un connecteur de dispositif de chauffage Cn auquel est connecté un dispositif de chauffage HTR qui consomme de l'énergie fournie à partir d'une alimentation électrique BAT pour chauffer une tige (500); une MCU 1 configurée pour commander l'alimentation de la puissance provenant de l'alimentation électrique BAT vers le dispositif de chauffage HTR; un commutateur de fonctionnement OPS qui peut être actionné par un utilisateur; et un circuit d'attaque de commutateur (7) permettant de redémarrer le MCU1, le circuit d'attaque de commutateur (7) redémarrant la MCU1 uniquement lorsque le commutateur de fonctionnement OPS est actionné et un panneau externe (115) est retiré.
PCT/JP2022/009489 2021-05-10 2022-03-04 Unité d'alimentation en énergie d'un dispositif de génération d'aérosol WO2022239413A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018166387A (ja) * 2017-03-28 2018-10-25 ミネベアミツミ株式会社 モータ制御装置及びステッピングモータの制御方法
JP2019187428A (ja) * 2012-10-19 2019-10-31 ニコベンチャーズ ホールディングス リミテッド 電子式吸入装置
JP2020500664A (ja) * 2016-12-12 2020-01-16 ブイエムアール・プロダクツ・リミテッド・ライアビリティ・カンパニーＶｍｒ Ｐｒｏｄｕｃｔｓ Ｌｌｃ 気化器
WO2021059377A1 (fr) * 2019-09-25 2021-04-01 日本たばこ産業株式会社 Unité de batterie, procédé de traitement d'informations et programme

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019187428A (ja) * 2012-10-19 2019-10-31 ニコベンチャーズ ホールディングス リミテッド 電子式吸入装置
JP2020500664A (ja) * 2016-12-12 2020-01-16 ブイエムアール・プロダクツ・リミテッド・ライアビリティ・カンパニーＶｍｒ Ｐｒｏｄｕｃｔｓ Ｌｌｃ 気化器
JP2018166387A (ja) * 2017-03-28 2018-10-25 ミネベアミツミ株式会社 モータ制御装置及びステッピングモータの制御方法
WO2021059377A1 (fr) * 2019-09-25 2021-04-01 日本たばこ産業株式会社 Unité de batterie, procédé de traitement d'informations et programme

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