WO2022239371A1 - エアロゾル生成装置の電源ユニット - Google Patents
エアロゾル生成装置の電源ユニット Download PDFInfo
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- WO2022239371A1 WO2022239371A1 PCT/JP2022/007916 JP2022007916W WO2022239371A1 WO 2022239371 A1 WO2022239371 A1 WO 2022239371A1 JP 2022007916 W JP2022007916 W JP 2022007916W WO 2022239371 A1 WO2022239371 A1 WO 2022239371A1
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- power supply
- terminal
- temperature
- protection control
- sensor
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Images
Classifications
-
- 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
-
- 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
- A24F40/46—Shape or structure of electric heating means
-
- 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
- A24F40/51—Arrangement of sensors
-
- 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
- A24F40/57—Temperature control
-
- 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
- A24F40/65—Devices with integrated communication means, e.g. wireless communication means
-
- 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
- A24F40/90—Arrangements or methods specially adapted for charging batteries thereof
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
- H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
-
- 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
- A24F40/90—Arrangements or methods specially adapted for charging batteries thereof
- A24F40/95—Arrangements or methods specially adapted for charging batteries thereof structurally associated with cases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a power supply unit for an aerosol generator.
- Patent Document 1 describes a device comprising an aerosol generator including a battery and an aerosol-generating element, and a portable charger.
- the portable charger has a thermistor that senses the temperature of the housing of the aerosol generator, and when the temperature sensed by the thermistor falls below 10°C, it activates a coil around the battery of the aerosol generator. This prevents the temperature of the battery from dropping to 10°C.
- Patent Document 2 describes a device that uses a comparator to protect against overcurrent and overvoltage.
- An aerosol generator configured to be able to inhale aerosols has heat-generating parts such as a power supply and a heater in its housing. It is important for safety to ensure that these parts do not generate heat in high temperature environments.
- the purpose of the present invention is to provide an aerosol generator with enhanced safety.
- a power supply unit of an aerosol generating apparatus includes a power supply, a heater connector connected to a heater that consumes the power supplied from the power supply to heat the aerosol source, and a heater connected to the heater or the power supply.
- a first sensor arranged to output a value related to the temperature of the heater or a value related to the temperature of the power supply, and a second sensor provided at a position separated from the first sensor to output a value related to the temperature at the position. and, when at least one of the output value of the first sensor and the output value of the second sensor is abnormal, one or both of charging of the power source and discharging from the power source to the heater are at least temporarily stopped. is prohibited.
- 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);
- FIG. 10 is a schematic diagram for explaining suction operation detection processing by an MCU using a puff thermistor;
- FIG. 11 is a circuit diagram of a main part of the electric circuit shown in FIG. 10, showing the main electronic components related to the thermistor.
- FIG. 22 is a diagram extracting and showing a portion of a range AR surrounded by a dashed line in FIG. 21; It is a figure which put together the specific example of the pattern of the protection control performed in an aspirator.
- FIG. 5 is a flowchart for explaining an example of operations of the fuel gauge IC and the MCU when a high temperature notification signal is output from the fuel gauge IC in a sleep mode;
- Figure 2 is a cross-sectional view in a plane through case thermistor T4 of the suction device shown in Figure 1;
- Figure 2 is a cross-sectional view in a plane through case thermistor T4 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 driving 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 schematic diagram for explaining the suction operation detection process by the MCU 1 using the puff thermistor T2.
- the MCU 1 includes an operational amplifier 1A, an analog-to-digital converter (ADC) 1B, a filter circuit 1C, a delay circuit 1D, a subtractor 1E, and a comparator 1F. ing.
- ADC analog-to-digital converter
- a non-inverting input terminal of the operational amplifier 1A is connected to the terminal P21.
- a reference voltage V Ref is input to the inverting input terminal of the operational amplifier 1A.
- the reference voltage V Ref may be generated from the system power supply voltage Vcc2 input to the power supply terminal VDD of the MCU1.
- the puff thermistor T2 is assumed to have NTC characteristics in the example of FIG. A signal obtained by dividing the system power supply voltage Vcc3 by the puff thermistor T2 and the resistor Rt2 is input to the terminal P21. Therefore, the higher the temperature of the puff thermistor T2, the larger the value of the signal input to the terminal P21.
- the operational amplifier 1A amplifies and outputs the voltage applied to the puff thermistor T2.
- ADC 1B converts the output signal of operational amplifier 1A into a digital value.
- the filter circuit 1C performs filtering such as a high-pass filter, a low-pass filter, and a band-pass filter on the digital signal output from the ADC 1B.
- the digital signal filtered by the filter circuit 1C is input to the + side of the subtractor 1E. This digital signal is delayed by the delay circuit 1D and input to the minus side of the subtractor 1E. Therefore, from the subtractor 1E, a digital signal corresponding to the temperature of the puff thermistor T2 obtained at an arbitrary time t(n) and a digital signal obtained at time t(n-1), which is the delay time before time t(n).
- a difference value from the digital signal corresponding to the temperature of the puff thermistor T2 is output.
- the output value of the subtractor 1E becomes a negative value and the output of the comparator 1F becomes low level.
- the output value of the subtractor 1E becomes a positive value and the output of the comparator 1F becomes high level.
- the MCU 1 When shifting from the initial heating setting mode to the heating mode, the MCU 1 starts preheating the heater HTR. As shown in FIGS. 6 and 7, the puff thermistor T2 is arranged near the heating section 170. As shown in FIG. Therefore, when the temperature of the heater HTR rises due to this preheating, the temperature of the puff thermistor T2 also rises accordingly. When the user inhales in this state, the temperature of the puff thermistor T2 is slightly lowered due to the gas flow inside the case 110 . That is, when the suction is performed during preheating of the heater HTR, the output of the subtractor 1E becomes a negative value, and a low level signal is output from the comparator 1F. The MCU 1 determines that a suction operation has been performed when a low level signal is output from the comparator 1F.
- 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.
- thresholds for temperature determination are set as follows. Numerical values and magnitude relationships in parentheses for each temperature threshold indicate preferred examples, and are not limited to these. The following description assumes that each temperature threshold is a value in parentheses.
- Temperature threshold THH0 (340°C) Temperature threshold THH1 (85°C) Temperature threshold THH2 (65°C) Temperature threshold THH3 (60°C) Temperature threshold THH4 (55°C) Temperature threshold THH5 (51°C) Temperature threshold THH6 (48°C) Temperature threshold THH7 (47°C) Temperature threshold THH8 (45°C) Temperature threshold THL1 (0°C) Temperature threshold THL2 (-5°C)
- FIG. 21 is a circuit diagram of a main part of the electrical circuit shown in FIG. 10, showing the main electronic components related to the thermistors T1 to T4.
- FIG. 22 is a diagram showing an extracted portion of range AR surrounded by broken lines in FIG.
- FIG. 22 shows LSW5 for generating system power supply voltage Vcc3 as an electronic component not shown in FIG.
- FIG. 21 shows, as electronic components and nodes not shown in FIG. , and node Nb are shown.
- the capacitor Cu, the capacitor Ct3, the resistor Rh, the capacitor Ct4, the capacitor Ch, and the capacitor Ct2 are provided for the purpose of reducing noise (smoothing the signal).
- the notification terminal 12a of the fuel gauge IC 12, which is a single terminal in FIG. 10, is divided into a first notification terminal 12aa and a second notification terminal 12ab in FIG.
- the node Nu connects the output terminal VOUT of the LSW 5 and the positive side of the connector Cn(t2) to which the puff thermistor T2 is connected.
- One end of the capacitor Cu is connected to the connection line between the node Nu and the output terminal VOUT of the LSW5.
- the other end of the capacitor Cu is connected to the ground.
- the capacitance of the capacitor Cu is 1 ⁇ F.
- the positive side of a connector Cn(t4) to which the case thermistor T4 is connected and the positive side of a connector Cn(t3) to which the heater thermistor T3 is connected are connected to the node Nu.
- the node Nt2 connects the negative electrode side of the connector Cn(t2) and one end of the resistor Rt2. The other end of resistor Rt2 is connected to ground.
- One end of the capacitor Ct2 is connected to the connection line between the node Nt2 and the negative electrode side of the connector Cn(t2). The other end of the capacitor Ct2 is connected to the ground.
- the capacitance of the capacitor Ct2 is 0.01 ⁇ F.
- Node Nt2 is connected to terminal P21 of MCU1.
- the node Nt4 connects the negative electrode side of the connector Cn(t4) and one end of the resistor Rt4. The other end of resistor Rt4 is connected to ground.
- One end of the capacitor Ct4 is connected to the connection line between the node Nt4 and the negative electrode side of the connector Cn(t4). The other end of the capacitor Ct4 is connected to the ground.
- the capacitance of the capacitor Ct4 is 0.1 ⁇ F.
- Node Nt4 is connected to terminal P12 of MCU1.
- the connection line between the node Nt4 and the terminal P12 of the MCU1 is connected to the inverting input terminal of the operational amplifier OP3.
- the node Nt3 connects the negative electrode side of the connector Cn(t3) and one end of the resistor Rt3.
- the other end of resistor Rt3 is connected to ground.
- One end of the capacitor Ct3 is connected to the connection line between the node Nt3 and the negative electrode side of the connector Cn(t3).
- the other end of the capacitor Ct3 is connected to the ground.
- the capacitance of the capacitor Ct3 is 0.1 ⁇ F.
- One end of a resistor Rh is connected to the node Nt3.
- the other end of resistor Rh is connected to terminal P13 of MCU1.
- One end of the capacitor Ch is connected to the connection line between the other end of the resistor Rh and the terminal P13 of the MCU1.
- the other end of capacitor Ch is connected to the ground.
- the capacitance of the capacitor Ch is 0.01 ⁇ F.
- a resistor Rh and a capacitor Ch constitute a filter circuit RC1 by a primary RC series circuit.
- the node Nb connects one end of the resistor Rh and the node Nt3.
- An inverting input terminal of the operational amplifier OP2 is connected to the node Nb.
- the capacity of the capacitor Cu is larger than the capacity of each of the capacitors Ct3, Ct4, and Ct2. As shown in FIG. It is provided on the upstream side (high potential side) of the three voltage dividing circuits, that is, the voltage dividing circuit of the case thermistor T4 and the resistor Rt4 and the voltage dividing circuit of the heater thermistor T3 and the resistor Rt3.
- the presence of the large-capacity capacitor Cu at this position makes it difficult for unstable power to be supplied to each voltage dividing circuit. can be done.
- the large-capacity capacitor Cu exists on the upstream side, the capacities of the capacitors Ct2, Ct3, and Ct4 provided on the downstream side can be reduced.
- the area of the circuit board can be effectively used, and the cost and size of the suction device 100 can be reduced.
- the capacitor Cu it is also possible to obtain the effect of smoothing the transient voltage that may occur when the LSW 5 is intermittently turned ON/OFF according to the opening/closing of the slider 119, the reset of the MCU 1, or the like.
- the capacitance of the capacitor Ct2 is smaller than the capacitance of each of the capacitors Ct3 and Ct4. Filter processing is performed only on the , as described with reference to FIG. 20 . Also, the MCU 1 detects a suction operation based on a change in the signal input to the terminal P21. Therefore, it is not preferable that the signal input to the terminal P21 is largely smoothed before it is input. By reducing the capacitance of the capacitor Ct2, it is possible to moderately remove noise from the output of the puff thermistor T2 while making it less likely to affect the result of filtering. As a result, suction detection can be performed with high accuracy.
- Capacitance of Capacitor Ch is Smaller than Capacitance of Capacitor Ct3
- the RC filter circuit RC1 plays an auxiliary role of the capacitor Ct3, but by using a capacitor having a smaller capacity than the capacitor Ct3 for such an auxiliary RC filter circuit RC1, the heater by the RC filter circuit RC1 A delay in the output signal of the thermistor T3 can be suppressed.
- the MCU 1 can acquire the heater temperature THTR at high speed and with low noise.
- the output signal of the heater thermistor T3 is also input to the operational amplifier OP2, and the input terminal of the operational amplifier OP2 is connected between the node Nt3 and the RC filter circuit RC1. Therefore, the output signal of the heater thermistor T3 input to the operational amplifier OP2 is prevented from being delayed by the RC filter circuit RC1.
- the first notification terminal 12aa of the fuel gauge IC12 is connected to the cathode of the diode D2.
- a second notification terminal 12ab of the fuel gauge IC12 is connected to a terminal P6 of the MCU1.
- the fuel gauge IC 12 obtains the power supply temperature T BAT at regular timing (for example, every second) and stores it in an internal register.
- the fuel gauge IC12 can mutually communicate with the MCU1 through the communication line LN in operation modes other than the sleep mode in which the MCU1 attempts to save power.
- the fuel gauge IC12 receives a transmission request for the power supply temperature T BAT from the MCU1 via the communication line LN, it transmits the power supply temperature T BAT to the MCU1 in response to the transmission request.
- the fuel gauge IC 12 operates when the power supply temperature T BAT satisfies the high temperature condition (the condition that the temperature threshold THH1 (85° C.) or higher continues multiple times) (the output value of the power supply thermistor T1 is abnormal). ), the high temperature notification signal SIG2a is output from the second notification terminal 12ab.
- the high temperature notification signal SIG2a can also be said to be an interrupt signal for the MCU1.
- the fuel gauge IC 12 operates when the power supply temperature T BAT satisfies the low temperature condition (the temperature threshold THL2 ( ⁇ 5° C.) or less) (when the output value of the power supply thermistor T1 is abnormal). ), the low temperature notification signal SIG2b is output from the second notification terminal 12ab. In all operation modes, the fuel gauge IC 12 operates when the power supply temperature T BAT satisfies the low temperature release condition (the temperature threshold THL1 (0° C.) or higher) (when the output value of the power supply thermistor T1 is normal). ), the low temperature release notification signal SIG2c is output from the second notification terminal 12ab. In FIG.
- the high temperature notification signal SIG2a, the low temperature notification signal SIG2b, and the low temperature cancellation notification signal SIG2c are collectively referred to as a notification signal SIG2.
- the low temperature notification signal SIG2b and the low temperature release notification signal SIG2c are output without waiting for a request from the MCU1 through the communication line LN.
- the low temperature notification signal SIG2b and the low temperature release notification signal SIG2c can also be said to be interrupt signals for the MCU1.
- the MCU 1 operating in the sleep mode has functions such as operation detection of the operation switch OPS, detection of the opening of the slider 119, detection of attachment/detachment of the outer panel 115, detection of USB connection, and detection of notification from the fuel gauge IC 12. , and execution of protection control based on notification from the fuel gauge IC 12, etc., thereby saving energy.
- the MCU 1 operating in sleep mode is activated (all functions are enabled) when the slider 119 is opened, and the operation mode of the aspirator 100 is shifted to the active mode.
- the MCU 1 is also activated when the high temperature notification signal SIG2a is received from the fuel gauge IC 12 at the terminal P6 (when the output value of the power supply thermistor T1 is abnormal). Change the operation mode to active mode.
- the MCU1 executes automatic recovery protection control, The operation mode of the aspirator 100 is shifted to the error mode. After executing this automatic return protection control, when the MCU 1 receives the low temperature release notification signal SIG2c at the terminal P6 (when the output value of the power supply thermistor T1 is normal), the MCU 1 ends the automatic return protection control, Return to sleep mode.
- the fuel gauge IC12 turns to low level.
- a high temperature notification signal SIG1 is output from the first notification terminal 12aa.
- the CLR ( ⁇ ) terminal of the FF 17 becomes low level. That is, the output of the Q terminal of FF17 becomes low level, and the manual return protection control is executed. Protection control based on the high temperature notification signal SIG1 can be executed in all operation modes.
- the voltage dividing circuit Pd connected to the non-inverting input terminal of the operational amplifier OP2 A resistance value is determined so that the output of the operational amplifier OP2 becomes low level. It is in the heating mode that the temperature of the heater thermistor T3 reaches a high temperature close to the temperature threshold THH0 (340° C.). Therefore, in the heating mode, when a low level signal is output from the operational amplifier OP2, the CLR ( ⁇ ) terminal of the FF17 becomes low level. That is, the output of the Q terminal of FF17 becomes low level, and the manual return protection control is executed. Protection control based on the output of the operational amplifier OP2 can be executed in an operation mode in which power is supplied to the heater thermistor T3 (in other words, an operation mode other than the sleep mode).
- the voltage dividing circuit Pe connected to the non-inverting input terminal of the operational amplifier OP3 A resistance value is determined so that the output of the operational amplifier OP3 becomes low level.
- the CLR ( ⁇ ) terminal of the FF17 becomes low level. That is, the output of the Q terminal of FF17 becomes low level, and the manual return protection control is executed. Protection control based on the output of the operational amplifier OP3 can be executed in an operation mode in which power is supplied to the case thermistor T4 (in other words, an operation mode other than the sleep mode).
- the FF 17 can execute protection control without involving the MCU 1, even if the MCU 1 is in sleep mode to save power or the MCU 1 is not operating normally for some reason, Also, charging and discharging can be prohibited based on any one of the power supply temperature T BAT , the heater temperature T HTR , and the case temperature T CASE . Thereby, the safety of the suction device 100 can be improved.
- the power supply voltage (system power supply voltage Vcc3) is not supplied to the thermistors T2 to T4. Therefore, the FF 17 cannot prohibit charging/discharging based on either the heater temperature T HTR or the case temperature T CASE .
- the power supply thermistor T1 is supplied with the power supply voltage in all operation modes. Therefore, protection control can be executed by the FF 17 in all operation modes.
- FIG. 23 is a diagram summarizing specific examples of protection control patterns performed in the suction device 100 .
- FIG. 23 also shows the relationship between the temperature in the figure and the temperature threshold.
- patterns PT1 to PT4 exist in the protection control performed based only on the power supply temperature TBAT .
- a pattern PT5 exists in the protection control performed based only on the heater temperature THTR .
- Pattern PT6 and pattern PT7 exist in protection control performed based only on the case temperature T CASE .
- a pattern PT8 exists in the protection control performed based on the power supply temperature T BAT and the case temperature T CASE . Each pattern will be described below.
- the MCU 1 executes protection control, and the type of protection control is automatic return protection control.
- the MCU 1 can execute automatic return protection control in the transition period from the sleep mode to the active mode (the period until the activation process for enabling all functions is completed) and in the heating initial setting mode.
- the MCU 1 periodically requests the fuel gauge IC 12 to acquire the power supply temperature TBAT via the communication line LN in each of the transition period and the heating initial setting mode.
- the power supply temperature TBAT transmitted from the fuel gauge IC 12 in response to this acquisition request becomes equal to or higher than the temperature threshold THH5 (51° C.) on the high temperature side, the MCU 1 determines that the output value of the power supply thermistor T1 is abnormal.
- the MCU1 changes the output value of the power supply thermistor T1. It judges that it is normal, terminates the automatic return protection control, and shifts to sleep mode.
- the MCU 1 executes protection control, and the type of protection control is manual return protection control.
- the MCU 1 can execute manual return protection control in each of the heating mode and charging mode.
- the MCU 1 periodically requests the fuel gauge IC 12 to acquire the power supply temperature TBAT via the communication line LN.
- the MCU 1 operating in the heating mode detects that the output value of the power supply thermistor T1 is abnormal. Then, manual return protection control is performed.
- the MCU 1 operating in the charge mode detects the power supply temperature T BAT sent from the fuel gauge IC 12 .
- THL1 the temperature threshold
- FF17 that executes protection control, and the type of protection control is manual return protection control. FF17 can execute manual return protection control in all operation modes.
- SIG1 signal indicating that the power supply temperature T BAT has reached or exceeded the temperature threshold THH3 (60° C.)
- THH3 60° C.
- manual return protection control is performed.
- the MCU 1 executes protection control, and the type of protection control is automatic return protection control.
- the MCU 1 can perform automatic return protection control in all operating modes.
- the MCU1 determines that the output value of the power supply thermistor T1 is abnormal, and executes automatic protection control.
- the MCU 1 receives the low temperature release notification signal SIG2c at the terminal P6, it determines that the output value of the power supply thermistor T1 is normal, and terminates the automatic protection control.
- the FF 17 executes protection control, and the type of protection control is manual return protection control.
- the FF 17 can execute manual return protection control in operation modes other than the sleep mode.
- the FF17 receives a low level signal from the operational amplifier OP2 at the CLR ( ⁇ ) terminal (when the output value of the heater thermistor T3 is abnormal), it performs manual return protection control.
- the possibility that the temperature of the heater thermistor T3 approaches the temperature threshold THH0 (340° C.) is extremely low. Therefore, in FIG. 23, only the heating mode is shown as the operation mode in which this manual return protection control is performed.
- the MCU 1 executes protection control, and the type of protection control is automatic return protection control.
- the MCU 1 can perform automatic recovery protection control in the active mode and heating initialization mode.
- the case temperature T CASE based on the signal input to the terminal P12 (the signal corresponding to the resistance value of the case thermistor T4) is equal to or higher than the temperature threshold THH6 (48° C.)
- the MCU 1 operating in these operation modes It judges that the output value of case thermistor T4 is abnormal, and executes automatic recovery protection control.
- the MCU1 controls the output value of the case thermistor T4 when the case temperature T CASE based on the signal input to the terminal P12 becomes equal to or lower than the temperature threshold THH7 (47° C.) which is less than the temperature threshold THH6. is normal, and the automatic return protection control is ended.
- protection control is disabled in the charging mode and heating mode, but protection control may be enabled in one of them.
- the FF 17 executes protection control, and the type of protection control is manual return protection control.
- the FF 17 can execute manual return protection control in operation modes other than the sleep mode. In these operation modes, when the FF17 receives a low-level signal (signal indicating that the case temperature TCASE is equal to or higher than the temperature threshold THH3 (60°C)) from the operational amplifier OP3 at the CLR ( ⁇ ) terminal (case thermistor T4 output is abnormal), perform manual recovery protection control.
- the MCU 1 executes protection control, and the type of protection control is non-recovery protection control.
- the non-recovery protection control can be executed in the sleep mode when the fuel gauge IC 12 outputs the high temperature notification signal SIG2a.
- the MCU1 operating in the sleep mode receives the high temperature notification signal SIG2a, it shifts to the active mode and performs a primary check to determine whether the output values of the power supply thermistor T1 and the case thermistor T4 are abnormal. Run.
- the MCU1 receives the signal input to the terminal P12.
- the case temperature T CASE based on (signal corresponding to the resistance value of the case thermistor T4) is equal to or higher than the temperature threshold THH2 (65°C)
- the output values of the power supply thermistor T1 and the case thermistor T4 are determined to be abnormal. to execute non-revertive protection control.
- protection control of pattern PT8 is non-recovery protection control, it may be replaced with manual recovery protection control.
- a situation in which the output values of the power supply thermistor T1 and the case thermistor T4 are abnormal is a situation in which it is assumed that the suction device 100 is highly abnormal. In such a situation, the safety of the aspirator 100 can be improved by preventing the automatic termination of the protection control by the non-reset protection control or the manual return protection control.
- FIG. 24 is a flowchart for explaining an example of the operation of the fuel gauge IC12 and the MCU1 when the high temperature notification signal SIG2a is output from the fuel gauge IC12 in the sleep mode.
- the fuel gauge IC 12 acquires the power supply temperature T BAT at intervals of, for example, one second and stores it in the built-in register (step S1). In parallel with the processing of step S1, the fuel gauge IC 12 performs an abnormality determination of the power supply temperature TBAT , for example, at intervals of one minute. Specifically, the fuel gauge IC 12 determines whether or not one minute has passed since the last abnormality determination was made (step S2). If the determination in step S2 is yes, the fuel gauge IC 12 determines whether or not the latest power supply temperature TBAT stored in the built-in register is equal to or higher than the temperature threshold THH1 (85° C.) (step S3). If the determination in step S3 is no, the fuel gauge IC 12 resets the value n of the built-in counter to the initial value of 0 (step S4), and returns the process to step S2.
- step S3 If the determination in step S3 is yes, the fuel gauge IC 12 increases the value n of the built-in counter by one (step S5). After that, if the numerical value n is less than 2 (step S6: no), the fuel gauge IC 12 returns the process to step S2, and if the numerical value n is 2 or more (step S6: yes), the high temperature notification signal SIG2a is output. It is transmitted to MCU1 (step S7).
- the MCU 1 operating in the sleep mode Upon receiving the high temperature notification signal SIG2a transmitted in step S7 (step S11), the MCU 1 operating in the sleep mode resets the value m of the built-in counter to the initial value of 0 (step S12), and changes the operation mode. The mode is changed to active mode (step S13). After that, the MCU 1 starts abnormality determination of the power supply temperature T BAT and the case temperature T CASE .
- step S14 when one second has passed (step S14: yes), the MCU 1 requests the fuel gauge IC 12 to transmit the power supply temperature T BAT via the communication line LN (step S15).
- step S8 When the fuel gauge IC 12 receives this request (step S8), it acquires the power supply temperature T BAT and transmits it to the MCU 1 via the communication line LN (step S9).
- step S9 The MCU 1 receives and acquires the power supply temperature T BAT transmitted from the fuel gauge IC 12 in step S9 (step S16).
- the MCU 1 performs the process of step S17 in parallel with the processes of steps S15 and S16.
- the MCU1 acquires the case temperature T CASE based on the signal input to the terminal P12.
- the MCU 1 confirms that the power supply temperature T BAT acquired in step S16 is equal to or higher than the temperature threshold THH1 (85° C.), and that the case temperature T CASE acquired in step S17 is the temperature threshold THH2 ( 65° C.) or higher (step S18).
- protection control is executed in multiple patterns such as In this way, protection control can be executed appropriately according to the temperature measurement object and the situation, so the safety of the suction device 100 can be improved.
- the protection control of the pattern PT8 is triggered by the high temperature notification signal SIG2a output from the fuel gauge IC12.
- the protection control of the pattern PT8 may be executed without being triggered by the high temperature notification signal SIG2a.
- the MCU 1 is set to a state where the power supply temperature T BAT is on the high temperature side.
- Non-recovery protection control may be executed when the temperature threshold THH1 (85° C.) or higher and the case temperature T CASE is higher than the temperature threshold THH2 (65° C.).
- Such protection control of pattern PT8 is realized by omitting steps S2 to S7 and steps S11 to S13 in the flowchart shown in FIG.
- FIG. 25 and 26 are cross-sectional views of the suction device 100 shown in FIG. 1 taken through the case thermistor T4.
- FIG. 25 is a cross-sectional view taken along a cutting plane perpendicular to the front-rear direction.
- FIG. 26 is a cross-sectional view taken along a cutting plane perpendicular to the vertical direction.
- a heating unit 170 including a heater HTR, a power supply BAT, and a case thermistor T4 are fixed to the chassis 150 inside the case 110 .
- the heating unit 170 and the power supply BAT are arranged side by side in the front-rear direction, and the case thermistor T4 is fixed to the chassis 150 so as to be positioned between the heating unit 170 and the power supply BAT in the front-rear direction.
- the chassis 150 includes a portion Pb located between the power supply BAT and the case thermistor T4, and a portion Pa located between the heating section 170 and the case thermistor T4.
- the case thermistor T4 is fixed in position by the chassis 150 used to fix other electronic components. Therefore, the case thermistor T4 can accurately obtain the temperature of the case 110 while avoiding an increase in the manufacturing cost of the suction device 100 . Further, as shown in FIG. 26, since the case thermistor T4 is not positioned toward the end in the front-rear direction, the heat of the user's hand when holding the case 110 is less likely to affect the case thermistor T4. Further, the existence of the portion Pa and the portion Pb makes it difficult for the heat generated by the power source BAT and the heater HTR to be transmitted to the case thermistor T4. Therefore, the environment in which the suction device 100 is placed can be more accurately grasped from the output value of the case thermistor T4.
- the existence of the other of the portions Pa and Pb can provide an effect that the heat generated by the power source BAT or the heater HTR is less likely to be transmitted to the case thermistor T4. can do.
- the power supply unit of the aerosol generator An MCU (MCU1) configured to control power supply from the power supply to the heater;
- the first protection control pattern PT3 or pattern PT5 protection control in FIG. 23
- the second protection control pattern PT7 protection control in FIG. 23
- protection control is executed to prohibit at least one of charging the power supply and discharging the power supply to the heater without going through the MCU, there is no guarantee that the MCU will operate normally. Therefore, as in (3), by requiring restarting of the MCU to terminate this protection control, the MCU can be operated normally and the control of the aerosol generator can be normalized.
- the power unit of the aerosol generator according to (2) or (3) can operate in multiple modes, In a mode in which one of the first protection control (protection control of pattern PT3 in FIG. 23) and the second protection control (protection control of pattern PT7 in FIG. 23) of the plurality of modes is inexecutable, the first protection the other of the control and the second protective control is executable; Power supply unit for the aerosol generator.
- the power supply unit of the aerosol generator A case (case 110) constituting the surface of the power supply unit is provided,
- the first sensor power supply thermistor T1 is arranged near the power supply and outputs a value related to the temperature of the power supply
- the second sensor case thermistor T4 is arranged near the case and outputs a value related to the temperature of the case, In a mode (sleep mode) in which the second protection control (protection control pattern PT7 in FIG. 23) cannot be performed among the plurality of modes, the first protection control (protection control pattern PT3 in FIG. 23) can be performed.
- Power supply unit for the aerosol generator In a mode (sleep mode) in which the second protection control (protection control pattern PT7 in FIG. 23) cannot be performed among the plurality of modes, the first protection control (protection control pattern PT3 in FIG. 23) can be performed.
- the power supply is a more complicated structure and important part than the case. According to (5), in a mode in which the second protection control cannot be performed, the first protection control based on the temperature of the power supply can be performed. For this reason, power saving of the aerosol generating device can be achieved by reducing the number of modes in which both the first protection control and the second protection control can be performed while ensuring safety more appropriately.
- the power supply unit of the aerosol generator The first protection control (protection control of pattern PT3 in FIG. 23) can be executed in all the above modes. Power supply unit for the aerosol generator.
- the first protection control based on the temperature of the power supply can be executed in all modes, so the power consumption of the aerosol generator can be reduced while ensuring safety more appropriately.
- a power supply unit for an aerosol generator according to any one of (1) to (6), an MCU (MCU1) configured to control the supply of power from the power supply to the heater;
- MCU MCU
- the above MCU Third protection control pattern PT1, pattern PT2, pattern PT4 protection control in FIG. 23
- a fourth protection control protection control of pattern PT6 in FIG. 23
- the MCU that operates most accurately among the ICs built into the aerosol generator executes the third protection control and the fourth protection control, so these protection controls are performed at more appropriate timing. can run.
- the protection control is automatically terminated without waiting for the user's operation when the normal state is established. Therefore, when the output values of the first sensor and the second sensor are short-term abnormal, it is possible to prevent the protection control from being executed for a long time, and the marketability of the aerosol generating device is improved. .
- a power supply unit for an aerosol generator according to any one of (1) to (6), a case (case 110) forming the surface of the power supply unit; an MCU (MCU1) configured to control power supply from the power source to the heater;
- the first sensor power supply thermistor T1 is arranged near the power supply and outputs a value related to the temperature of the power supply
- the second sensor case thermistor T4 is arranged near the case and outputs a value related to the temperature of the case,
- the above MCU Obtaining the temperature of the power supply based on the output value of the first sensor, Obtaining the temperature of the case based on the output value of the second sensor,
- the first threshold THH5 51° C.
- an appropriate threshold can be set according to the temperature measurement object, so the safety of the aerosol generator is improved.
- the power supply unit of the aerosol generator The first threshold is higher than the second threshold, Power supply unit for the aerosol generator.
- a case that is not a heat source itself is not likely to reach high temperatures. Therefore, it is possible to distinguish between abnormal and normal even if the second threshold is set low. According to (10), the safety of the aerosol generating device is improved because the low second threshold enables early detection of anomalies related to the temperature of the case.
- a power supply unit for an aerosol generator according to any one of (1) to (6), a case (case 110) forming the surface of the power supply unit; an MCU (MCU1) configured to control power supply from the power source to the heater;
- the first sensor power supply thermistor T1 is arranged near the power supply and outputs a value related to the temperature of the power supply
- the second sensor case thermistor T4 is arranged near the case and outputs a value related to the temperature of the case,
- the above MCU Obtaining the temperature of the power supply based on the output value of the first sensor, Obtaining the temperature of the case based on the output value of the second sensor,
- a first threshold temperature threshold THH5: 51° C.
- 3 protection control (protection control of pattern PT1 in FIG. 23) is executed, When the temperature of the power supply becomes equal to or lower than a second threshold (temperature threshold THH8: 45° C.) that is less than the first threshold after execution of the third protection control, it is determined that the output value of the first sensor is normal, and , ending the third protection control, When the temperature of the case is equal to or higher than the third threshold (temperature threshold THH6: 48° C.), the output value of the second sensor is determined to be abnormal, and one or both of the charging and discharging are prohibited. 4 protection control (protection control of pattern PT6 in FIG.
- an appropriate hysteresis according to the temperature measurement target is set in the threshold value for determining abnormality in the output value of the sensor, so the safety of the aerosol generating device is improved.
- a power supply unit for an aerosol generator according to any one of (1) to (12), a case (case 110) forming the surface of the power supply unit; an MCU (MCU1) configured to control power supply from the power source to the heater;
- the first sensor (heater thermistor T3) is arranged near the heater and outputs a value related to the temperature of the heater,
- the second sensor (case thermistor T4) is arranged near the case and outputs a value related to the temperature of the case, If the output value of the first sensor is abnormal, execute fifth protection control (pattern PT5 protection control in FIG. 23) for prohibiting one or both of the charging and the discharging without going through the MCU,
- the MCU is configured to execute sixth protection control (pattern PT6 protection control in FIG.
- the power supply unit is operable in multiple modes, In a mode (heating mode) in which the sixth protection control is not executable among the plurality of modes, the fifth protection control is executable, Power supply unit for the aerosol generator.
- the fifth protection control based on the temperature abnormality of the heater which is more important than the case, can be executed in a mode in which the sixth protection control cannot be executed, so the safety of the aerosol generator is improved.
- the power unit of the aerosol generator The plurality of modes include a heating mode in which the power supply discharges to the heater, a sleep mode, and a pre-heating mode (active mode and heating initial setting mode) that must be passed to transition from the sleep mode to the heating mode. ), including The sixth protection control is executable only in the pre-heating mode out of the heating mode and the pre-heating mode. Power supply unit for the aerosol generator.
- the aerosol generator it can be determined whether the aerosol generator is in a safe condition before generating the aerosol. If the aerosol generator is placed in an unrecommended environment, for example, the heater need not start heating, thus avoiding waste of the aerosol source and improving the convenience and safety of the aerosol generator.
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Abstract
Description
ロッド500は、所定温度で加熱されてエアロゾルを生成するエアロゾル源を含有する充填物を含む。
続いて、吸引器100の全体構成について、図1~図4を参照しながら説明する。
吸引器100は、前面、後面、左面、右面、上面、及び下面を備える略直方体形状のケース110を備える。ケース110は、前面、後面、上面、下面、及び右面が一体に形成された有底筒状のケース本体112と、ケース本体112の開口部114(図4参照)を封止し左面を構成するアウターパネル115及びインナーパネル118と、スライダ119と、を備える。
吸引器100の内部ユニット140について図5~図8を参照しながら説明する。
図5は、吸引器100の内部ユニット140の斜視図である。図6は、図5の内部ユニット140の分解斜視図である。図7は、電源BAT及びシャーシ150を取り除いた内部ユニット140の斜視図である。図8は、電源BAT及びシャーシ150を取り除いた内部ユニット140の他の斜視図である。
図9は、吸引器100の動作モードを説明するための模式図である。図9に示すように、吸引器100の動作モードには、充電モード、スリープモード、アクティブモード、加熱初期設定モード、加熱モード、及び加熱終了モードが含まれる。
図10、図11、及び図12は、内部ユニット140の電気回路の概略構成を示す図である。図11は、図10に示す電気回路のうち、MCU搭載基板161に搭載される範囲161A(太い破線で囲まれた範囲)と、LED搭載基板163に搭載される範囲163A(太い実線で囲まれた範囲)とを追加した点を除いては、図10と同じである。図12は、図10に示す電気回路のうち、レセプタクル搭載基板162に搭載される範囲162Aと、ホールIC搭載基板164に搭載される範囲164Aとを追加した点を除いては、図10と同じである。
以下、図10を参照しながら各電子部品の接続関係等について説明する。
LSW3に接続されたバイポーラトランジスタS2は、USB接続がなされると、MCU1によってオフされる。バイポーラトランジスタS2がオフすることで、分圧回路Pfによって分圧されたUSB電圧VUSBがLSW3の制御端子ONに入力される。このため、USB接続がなされ且つバイポーラトランジスタS2がオフされると、LSW3の制御端子ONには、ハイレベルの信号が入力される。これにより、LSW3は、USBケーブルから供給されるUSB電圧VUSBを出力端子VOUTから出力する。なお、バイポーラトランジスタS2がオフされていない状態でUSB接続がなされても、LSW3の制御端子ONは、バイポーラトランジスタS2を介してグランドラインへ接続されている。このため、MCU1がバイポーラトランジスタS2をオフしない限り、LSW3の制御端子ONにはローレベルの信号が入力され続ける点に留意されたい。
なお、サーミスタT3としてPTC特性を持つものを用いる場合には、オペアンプOP2の非反転入力端子に、サーミスタT3及び抵抗器Rt3の分圧回路の出力を接続し、オペアンプOP2の反転入力端子に、分圧回路Pdの出力を接続すればよい。
なお、サーミスタT4としてPTC特性を持つものを用いる場合には、オペアンプOP3の非反転入力端子に、サーミスタT4及び抵抗器Rt4の分圧回路の出力を接続し、オペアンプOP3の反転入力端子に、分圧回路Peの出力を接続すればよい。
以下、図13~図19を参照して、図10に示す電気回路の動作を説明する。図13は、スリープモードにおける電気回路の動作を説明するための図である。図14は、アクティブモードにおける電気回路の動作を説明するための図である。図15は、加熱初期設定モードにおける電気回路の動作を説明するための図である。図16は、加熱モードにおけるヒータHTRの加熱時の電気回路の動作を説明するための図である。図17は、加熱モードにおけるヒータHTRの温度検出時の電気回路の動作を説明するための図である。図18は、充電モードにおける電気回路の動作を説明するための図である。図19は、MCU1のリセット(再起動)時の電気回路の動作を説明するための図である。図13~図19の各々において、チップ化された電子部品の端子のうち、破線の楕円で囲まれた端子は、電源電圧VBAT、USB電圧VUSB、及びシステム電源電圧等の入力又は出力がなされている端子を示している。
MCU1は、充電IC2のVBATパワーパス機能を有効とし、OTG機能と充電機能を無効とする。充電IC2の入力端子VBUSにUSB電圧VUSBが入力されないことで、充電IC2のVBATパワーパス機能は有効になる。通信線LNからOTG機能を有効にするための信号がMCU1から充電IC2へ出力されないため、OTG機能は無効になる。このため、充電IC2は、充電端子batに入力された電源電圧VBATからシステム電源電圧Vcc0を生成して、出力端子SYSから出力する。出力端子SYSから出力されたシステム電源電圧Vcc0は、昇降圧DC/DCコンバータ8の入力端子VIN及びイネーブル端子ENに入力される。昇降圧DC/DCコンバータ8は、正論理であるイネーブル端子ENにハイレベルのシステム電源電圧Vcc0が入力されることでイネーブルとなり、システム電源電圧Vcc0からシステム電源電圧Vcc1を生成して、出力端子VOUTから出力する。昇降圧DC/DCコンバータ8の出力端子VOUTから出力されたシステム電源電圧Vcc1は、LSW4の入力端子VINと、LSW4の制御端子ONと、スイッチドライバ7の入力端子VINと、FF16の電源端子VCC及びD端子と、にそれぞれ供給される。
MCU1は、図13のスリープモードの状態から、端子P8に入力される信号がハイレベルとなり、スライダ119が開いたことを検出すると、端子P23からLSW5の制御端子ONにハイレベルの信号を入力する。これにより、LSW5は入力端子VINに入力されているシステム電源電圧Vcc2を、システム電源電圧Vcc3として、出力端子VOUTから出力する。LSW5の出力端子VOUTから出力されたシステム電源電圧Vcc3は、サーミスタT2と、サーミスタT3と、サーミスタT4と、に供給される。
LED L1~L8に供給される。
図14の状態から、端子P4に入力される信号がローレベルになる(操作スイッチOPSの押下がなされる)と、MCU1は、加熱に必要な各種の設定を行った後、端子P14から、昇圧DC/DCコンバータ9のイネーブル端子ENにハイレベルのイネーブル信号を入力する。これにより、昇圧DC/DCコンバータ9は、電源電圧VBATを昇圧して得られる駆動電圧Vbstを出力端子VOUTから出力する。駆動電圧Vbstは、スイッチS3とスイッチS4に供給される。この状態では、スイッチS3とスイッチS4はオフとなっている。また、端子P14から出力されたハイレベルのイネーブル信号によってスイッチS6はオンされる。これにより、ヒータHTRの負極側端子がグランドラインに接続されて、スイッチS3をONにすればヒータHTRを加熱可能な状態になる。MCU1の端子P14からハイレベルの信号のイネーブル信号が出力された後、加熱モードに移行する。
図15の状態において、MCU1は、端子P16に接続されたスイッチS3のスイッチング制御と、端子P15に接続されたスイッチS4のスイッチング制御を開始する。これらスイッチング制御は、上述した加熱初期設定モードが完了すれば自動的に開始されてもよいし、さらなる操作スイッチOPSの押下によって開始されてもよい。具体的には、MCU1は、図16のように、スイッチS3をオンし、スイッチS4をオフして、駆動電圧VbstをヒータHTRに供給し、エアロゾル生成のためのヒータHTRの加熱を行う加熱制御と、図17のように、スイッチS3をオフし、スイッチS4をオンして、ヒータHTRの温度を検出する温度検出制御と、を行う。
図17に示すように、温度検出制御時には、駆動電圧VbstがオペアンプOP1の正電源端子に入力されると共に、分圧回路Pbに入力される。分圧回路Pbによって分圧された電圧は、MCU1の端子P18に入力される。MCU1は、端子P18に入力される電圧に基づいて、温度検出制御時における抵抗器RsとヒータHTRの直列回路に印加される基準電圧Vtempを取得する。
図18は、スリープモードの状態でUSB接続がなされた場合を例示している。USB接続がなされると、USB電圧VUSBが過電圧保護IC11を介してLSW3の入力端子VINに入力される。USB電圧VUSBは、LSW3の入力端子VINに接続された分圧回路Pfにも供給される。USB接続がなされた直後の時点では、バイポーラトランジスタS2がオンとなっているため、LSW3の制御端子ONに入力される信号はローレベルのままとなる。USB電圧VUSBは、MCU1の端子P17に接続された分圧回路Pcにも供給され、この分圧回路Pcで分圧された電圧が端子P17に入力される。MCU1は、端子P17に入力された電圧に基づいて、USB接続がなされたことを検出する。
アウターパネル115が外されてホールIC13の出力がローレベルとなり、操作スイッチOPSのオン操作がなされてMCU1の端子P4に入力される信号がローレベルになると、スイッチドライバ7の端子SW1と端子SW2が共にローレベルとなる。これにより、スイッチドライバ7は、リセット入力端子RSTBからローレベルの信号を出力する。リセット入力端子RSTBから出力されたローレベルの信号はLSW4の制御端子ONに入力される。これにより、LSW4は、出力端子VOUTからのシステム電源電圧Vcc2の出力を停止する。システム電源電圧Vcc2の出力が停止されることで、MCU1の電源端子VDDにシステム電源電圧Vcc2が入力されなくなるため、MCU1は停止する。
図20は、パフサーミスタT2を用いたMCU1による吸引動作の検知処理を説明するための模式図である。図20に示すように、MCU1の内部には、オペアンプ1Aと、アナログデジタル変換器(ADC)1Bと、フィルタ回路1Cと、遅延回路1Dと、減算器1Eと、比較器1Fと、が設けられている。
吸引器100では、電源サーミスタT1の抵抗値(出力値)によって電源BATの温度(以下、電源温度TBATと記載)を取得可能であり、ヒータサーミスタT3の抵抗値(出力値)によってヒータHTRの温度(以下、ヒータ温度THTRと記載)を取得可能であり、ケースサーミスタT4の抵抗値(出力値)によってケース110の温度(以下、ケース温度TCASEと記載)を取得可能である。そして、吸引器100は、電源温度TBAT、ヒータ温度THTR、及びケース温度TCASEの少なくともいずれかが、吸引器100の使用される推奨環境下での値とかけ離れた状態になった場合に、電源BATの充電及び電源BATからヒータHTRへの放電(以下、充放電とも記載)を禁止する保護制御を実行して、安全性を高めるように構成されている。この保護制御は、MCU1とFF17によって行われる。
以下では、保護制御として充放電を禁止する例を説明するが、保護制御は、安全性の向上という観点から、充電のみを禁止する制御としてもよいし、放電のみを禁止する制御としてもよい。
温度閾値THH0(340℃)
温度閾値THH1(85℃)
温度閾値THH2(65℃)
温度閾値THH3(60℃)
温度閾値THH4(55℃)
温度閾値THH5(51℃)
温度閾値THH6(48℃)
温度閾値THH7(47℃)
温度閾値THH8(45℃)
温度閾値THL1(0℃)
温度閾値THL2(-5℃)
図21は、図10に示す電気回路のうち、サーミスタT1~T4と関係のある主要な電子部品を抜き出して示した要部回路図である。図22は、図21における破線で囲まれた範囲ARの部分を抽出して示した図である。なお、図22には、図21では図示されていなかった電子部品として、システム電源電圧Vcc3を生成するLSW5が示されている。
コンデンサCu、コンデンサCt3、コンデンサCt4、コンデンサCh、及びコンデンサCt2の容量は、次の(A)~(C)の関係になっていることが望ましい。
図22に示したように、コンデンサCuは、パフサーミスタT2及び抵抗器Rt2の分圧回路と、ケースサーミスタT4及び抵抗器Rt4の分圧回路と、ヒータサーミスタT3及び抵抗器Rt3の分圧回路との3つの分圧回路よりも上流側(高電位側)に設けられる。この位置に大容量のコンデンサCuがあることで、各分圧回路に不安的な電源が供給されにくくなるため、サーミスタT2~T4の出力信号を安定にし、吸引器100を安定的に動作させることができる。また、大容量のコンデンサCuが上流側に存在することで、下流側に設けられるコンデンサCt2、コンデンサCt3、及びコンデンサCt4の容量を下げることができる。このため、回路基板の面積を有効活用でき、吸引器100のコストやサイズを低減できる。なお、コンデンサCuを設けることで、スライダ119の開閉やMCU1のリセット等に応じて間欠的にONされるLSW5のON/OFF時に生じ得る過渡的な電圧を平滑化する効果も得られる。
MCU1は、端子P21、端子P12、及び端子P13のそれぞれに入力される信号のうち、端子P21に入力される信号に対してのみ、図20にて説明したように、フィルタ処理を実行する。また、MCU1は、端子P21に入力される信号の変化に基づいて、吸引動作の検知を行う。したがって、端子P21に入力される信号がその入力前に大きく平滑化されるのは好ましくない。コンデンサCt2の容量を小さくすることで、パフサーミスタT2の出力から適度にノイズを除去しつつ、フィルタ処理の結果に影響を与えにくくなる。これにより吸引検知を高精度に行うことができる。
一方、コンデンサCt3とコンデンサCt4については、大きめの容量とすることで、十分に平滑化された信号をオペアンプOP2とオペアンプOP3に入力可能となる。これにより、オペアンプOP2とオペアンプOP3が誤動作する虞が低減し、ヒータサーミスタT3とケースサーミスタT4の出力値をMCU1が高精度に取得可能となる。
RCフィルタ回路RC1を設けることで、コンデンサCt3で平滑化しきれなかったスパイクノイズを除去する効果を得られる。つまり、RCフィルタ回路RC1は、コンデンサCt3の補助的な役割を果たすが、このような補助的なRCフィルタ回路RC1に、コンデンサCt3よりも小容量のコンデンサを用いることで、RCフィルタ回路RC1によるヒータサーミスタT3の出力信号の遅延を抑制できる。この結果、MCU1は、ヒータ温度THTRの取得を高速且つ低ノイズで行うことができる。
なお、ヒータサーミスタT3の出力信号は、オペアンプOP2にも入力されるが、オペアンプOP2の入力端子は、ノードNt3とRCフィルタ回路RC1の間に接続されている。このため、オペアンプOP2に入力されるヒータサーミスタT3の出力信号がRCフィルタ回路RC1によって遅延されることは防がれる。
図23に示すように、電源温度TBATのみに基づいて行われる保護制御にはパターンPT1~PT4が存在する。ヒータ温度THTRのみに基づいて行われる保護制御にはパターンPT5が存在する。ケース温度TCASEのみに基づいて行われる保護制御にはパターンPT6とパターンPT7が存在する。電源温度TBAT及びケース温度TCASEに基づいて行われる保護制御にはパターンPT8が存在する。以下、各パターンについて説明する。
保護制御を実行するのはMCU1であり、保護制御の種別は自動復帰保護制御である。MCU1は、スリープモードからアクティブモードへの移行期間(すべての機能を有効化する起動処理が終了するまでの期間)と加熱初期設定モードのそれぞれで自動復帰保護制御を実行可能である。MCU1は、上記移行期間と加熱初期設定モードのそれぞれにおいて、通信線LNを介して、残量計IC12に電源温度TBATの取得要求を定期的に行う。MCU1は、この取得要求に応じて残量計IC12から送信されてきた電源温度TBATが高温側の温度閾値THH5(51℃)以上となった場合には、電源サーミスタT1の出力値が異常であると判断して、自動復帰保護制御を実行する。自動復帰保護制御を実行した後、MCU1は、残量計IC12から送信されてきた電源温度TBATが、温度閾値THH5未満の温度閾値THH8(45℃)以下になると、電源サーミスタT1の出力値が正常であると判断して、自動復帰保護制御を終了し、スリープモードへと移行する。
保護制御を実行するのはMCU1であり、保護制御の種別は手動復帰保護制御である。MCU1は、加熱モードと充電モードのそれぞれで手動復帰保護制御を実行可能である。MCU1は、加熱モードと充電モードのそれぞれにおいて、通信線LNを介して、残量計IC12に電源温度TBATの取得要求を定期的に行う。加熱モードにて動作中のMCU1は、残量計IC12から送信されてきた電源温度TBATが高温側の温度閾値THH4(55℃)以上となった場合には、電源サーミスタT1の出力値が異常であると判断して、手動復帰保護制御を行う。充電モードにて動作中のMCU1は、残量計IC12から送信されてきた電源温度TBATが温度閾値THH4(55℃)以上になった場合と、残量計IC12から送信されてきた電源温度TBATが低温側の温度閾値THL1(0℃)未満になった場合のいずれかの場合に、電源サーミスタT1の出力値が異常であると判断して、手動復帰保護制御を行う。
保護制御を実行するのはFF17であり、保護制御の種別は手動復帰保護制御である。FF17は、全ての動作モードにおいて手動復帰保護制御を実行可能である。FF17は、全ての動作モードにおいて、残量計IC12からの通知信号SIG1(電源温度TBATが温度閾値THH3(60℃)以上になったことを示す信号)をCLR端子( ̄)にて受けると(電源サーミスタT1の出力値が異常である場合)、手動復帰保護制御を行う。
保護制御を実行するのはMCU1であり、保護制御の種別は自動復帰保護制御である。MCU1は、全ての動作モードにおいて自動復帰保護制御を実行可能である。MCU1は、低温通知信号SIG2bを残量計IC12から端子P6にて受信した場合に、電源サーミスタT1の出力値が異常であると判断して、自動保護制御を実行する。この自動復帰保護制御の実行後、MCU1は、低温解除通知信号SIG2cを端子P6にて受信した場合に、電源サーミスタT1の出力値が正常であると判断して、自動保護制御を終了する。
保護制御を実行するのはFF17であり、保護制御の種別は手動復帰保護制御である。FF17は、スリープモード以外の動作モードにおいて手動復帰保護制御を実行可能である。FF17は、オペアンプOP2からローレベルの信号をCLR( ̄)端子にて受けると(ヒータサーミスタT3の出力値が異常である場合)、手動復帰保護制御を行う。加熱モード以外の動作モードにおいては、ヒータサーミスタT3の温度が温度閾値THH0(340℃)に近くなる可能性は極めて低い。このため、図23では、この手動復帰保護制御が行われる動作モードを加熱モードのみとして示している。
保護制御を実行するのはMCU1であり、保護制御の種別は自動復帰保護制御である。MCU1は、アクティブモードと加熱初期設定モードにおいて自動復帰保護制御を実行可能である。これら動作モードにて動作中のMCU1は、端子P12に入力される信号(ケースサーミスタT4の抵抗値に応じた信号)に基づくケース温度TCASEが温度閾値THH6(48℃)以上である場合に、ケースサーミスタT4の出力値が異常であると判断して、自動復帰保護制御を実行する。自動復帰保護制御の実行後、MCU1は、端子P12に入力される信号に基づくケース温度TCASEが温度閾値THH6未満の温度閾値THH7(47℃)以下になった場合に、ケースサーミスタT4の出力値が正常であると判断して、自動復帰保護制御を終了する。
なお、パターンPT6では充電モードと加熱モードで保護制御が実行不能になっているが、どちらか一方では保護制御を実行可能にしてもよい。
保護制御を実行するのはFF17であり、保護制御の種別は手動復帰保護制御である。FF17は、スリープモード以外の動作モードにおいて手動復帰保護制御を実行可能である。FF17は、これら動作モードにおいて、オペアンプOP3からローレベルの信号(ケース温度TCASEが温度閾値THH3(60℃)以上であることを示す信号)をCLR( ̄)端子にて受けると(ケースサーミスタT4の出力が異常である場合)、手動復帰保護制御を行う。
保護制御を実行するのはMCU1であり、保護制御の種別は非復帰保護制御である。非復帰保護制御は、スリープモードにおいて、残量計IC12から高温通知信号SIG2aが出力された場合に実行可能となる。スリープモードにて動作中のMCU1は、高温通知信号SIG2aを受信すると、アクティブモードに移行し、電源サーミスタT1とケースサーミスタT4のそれぞれの出力値が異常であるか否かを判断する1次チェックを実行する。具体的には、MCU1は、通信線LNを介して残量計IC12から送信されてきた電源温度TBATが高温側の温度閾値THH1(85℃)以上となり、且つ、端子P12に入力される信号(ケースサーミスタT4の抵抗値に応じた信号)に基づくケース温度TCASEが温度閾値THH2(65℃)以上である場合に、電源サーミスタT1とケースサーミスタT4のそれぞれの出力値が異常であると判断して、非復帰保護制御を実行する。
図25及び図26は、図1に示す吸引器100のケースサーミスタT4を通る切断面での断面図である。図25は、前後方向に垂直な切断面での断面図である。図26は、上下方向に垂直な切断面での断面図である。
エアロゾル生成装置の電源ユニット(吸引器100)であって、
電源(電源BAT)と、
上記電源から供給される電力を消費してエアロゾル源を加熱するヒータ(ヒータHTR)が接続されるヒータコネクタ(ヒータコネクタCn)と、
上記ヒータ又は上記電源の近傍に配置され、上記ヒータの温度に関する値又は上記電源の温度に関する値を出力する第1センサ(ヒータサーミスタT3又は電源サーミスタT1)と、
上記第1センサとは離間した位置に設けられ、上記位置の温度に関する値を出力する第2センサ(ケースサーミスタT4)と、を備え、
上記第1センサの出力値と上記第2センサの出力値の少なくとも一方が異常である場合、上記電源の充電と上記電源から上記ヒータへの放電の一方又は両方を、少なくとも一時的に禁止する、
エアロゾル生成装置の電源ユニット。
(1)に記載のエアロゾル生成装置の電源ユニットであって、
上記電源から上記ヒータへの電力の供給を制御するように構成されるMCU(MCU1)を備え、
上記第1センサの出力値が異常である場合、上記MCUを介さずに、上記充電と上記放電の一方又は両方を禁止する第1保護制御(図23のパターンPT3又はパターンPT5の保護制御)を、実行し、
上記第2センサの出力値が異常である場合、上記MCUを介さずに、上記充電と上記放電の一方又は両方を禁止する第2保護制御(図23のパターンPT7の保護制御)を実行する、
エアロゾル生成装置の電源ユニット。
(2)に記載のエアロゾル生成装置の電源ユニットであって、
上記第1保護制御の終了には、上記MCUの再起動が必要であり、
上記第2保護制御の終了には、上記MCUの再起動が必要である、
エアロゾル生成装置の電源ユニット。
(2)又は(3)に記載のエアロゾル生成装置の電源ユニットであって、
複数のモードで動作可能であり、
上記複数のモードのうち上記第1保護制御(図23のパターンPT3の保護制御)と上記第2保護制御(図23のパターンPT7の保護制御)の一方が実行不能なモードにおいて、上記第1保護制御と上記第2保護制御の他方は実行可能である、
エアロゾル生成装置の電源ユニット。
(4)に記載のエアロゾル生成装置の電源ユニットであって、
上記電源ユニットの表面を構成するケース(ケース110)を備え、
上記第1センサ(電源サーミスタT1)は、上記電源の近傍に配置され、上記電源の温度に関する値を出力し、
上記第2センサ(ケースサーミスタT4)は、上記ケースの近傍に配置され、上記ケースの温度に関する値を出力し、
上記複数のモードのうち上記第2保護制御(図23のパターンPT7の保護制御)が実行不能なモード(スリープモード)において、上記第1保護制御(図23のパターンPT3の保護制御)は実行可能である、
エアロゾル生成装置の電源ユニット。
(5)に記載のエアロゾル生成装置の電源ユニットであって、
上記第1保護制御(図23のパターンPT3の保護制御)は、全ての上記モードにおいて実行可能である、
エアロゾル生成装置の電源ユニット。
(1)から(6)のいずれかに記載のエアロゾル生成装置の電源ユニットであって、
上記電源から上記ヒータへの電力の供給を制御するように構成されるMCU(MCU1)を、備え、
上記MCUは、
上記第1センサ(電源サーミスタT1)の出力値が異常である場合、上記充電と上記放電の一方又は両方を禁止する第3保護制御(図23のパターンPT1、パターンPT2、パターンPT4の保護制御)を実行し、
上記第2センサ(ケースサーミスタT4)の出力値が異常である場合、上記充電と上記放電の一方又は両方を禁止する第4保護制御(図23のパターンPT6の保護制御)を実行するように構成される、
エアロゾル生成装置の電源ユニット。
(7)に記載のエアロゾル生成装置の電源ユニットであって、
上記MCUは、
上記第1センサの出力値が正常になると、上記第3保護制御(図23のパターンPT1、パターンPT4の保護制御)を終了し、
上記第2センサの出力値が正常になると、上記第4保護制御(図23のパターンPT6の保護制御)を終了するように構成される、
エアロゾル生成装置の電源ユニット。
(1)から(6)のいずれかに記載のエアロゾル生成装置の電源ユニットであって、
上記電源ユニットの表面を構成するケース(ケース110)と、
上記電源から上記ヒータへの電力の供給を制御するように構成されるMCU(MCU1)と、を備え、
上記第1センサ(電源サーミスタT1)は、上記電源の近傍に配置され、上記電源の温度に関する値を出力し、
上記第2センサ(ケースサーミスタT4)は、上記ケースの近傍に配置され、上記ケースの温度に関する値を出力し、
上記MCUは、
上記第1センサの出力値に基づき、上記電源の温度を取得し、
上記第2センサの出力値に基づき、上記ケースの温度を取得し、
上記電源の温度が第1閾値(温度閾値THH5:51℃、又は、温度閾値THH4:55℃)以上の場合、上記第1センサの出力値が異常であると判断し、且つ、上記充電と上記放電の一方又は両方を禁止する第3保護制御(図23のパターンPT1、パターンPT2の保護制御)を実行し、
上記ケースの温度が第2閾値(温度閾値THH6:48℃)以上の場合、上記第2センサの出力値が異常であると判断し、且つ、上記充電と上記放電の一方又は両方を禁止する第4保護制御(図23のパターンPT6の保護制御)を実行するように構成され、
上記第1閾値は、上記第2閾値とは異なる、
エアロゾル生成装置の電源ユニット。
(9)に記載のエアロゾル生成装置の電源ユニットであって、
上記第1閾値は、上記第2閾値より高い、
エアロゾル生成装置の電源ユニット。
(1)から(6)のいずれかに記載のエアロゾル生成装置の電源ユニットであって、
上記電源ユニットの表面を構成するケース(ケース110)と、
上記電源から上記ヒータへの電力の供給を制御するように構成されるMCU(MCU1)と、を備え、
上記第1センサ(電源サーミスタT1)は、上記電源の近傍に配置され、上記電源の温度に関する値を出力し、
上記第2センサ(ケースサーミスタT4)は、上記ケースの近傍に配置され、上記ケースの温度に関する値を出力し、
上記MCUは、
上記第1センサの出力値に基づき、上記電源の温度を取得し、
上記第2センサの出力値に基づき、上記ケースの温度を取得し、
上記電源の温度が第1閾値(温度閾値THH5:51℃)以上の場合、上記第1センサの出力値が異常であると判断し、且つ、上記充電と上記放電の一方又は両方を禁止する第3保護制御(図23のパターンPT1の保護制御)を実行し、
上記第3保護制御の実行後に上記電源の温度が上記第1閾値未満の第2閾値(温度閾値THH8:45℃)以下になると、上記第1センサの出力値が正常であると判断し、且つ、上記第3保護制御を終了し、
上記ケースの温度が第3閾値(温度閾値THH6:48℃)以上の場合、上記第2センサの出力値が異常であると判断し、且つ、上記充電と上記放電の一方又は両方を禁止する第4保護制御(図23のパターンPT6の保護制御)を実行し、
上記第4保護制御の実行後に上記ケースの温度が上記第3閾値未満の第4閾値(温度閾値THH7:47℃)以下になると、上記第2センサの出力値が正常であると判断し、且つ、上記第4保護制御を終了するように構成され、
上記第1閾値から上記第2閾値を引いた値は、上記第3閾値から上記第4閾値を引いた値とは異なる、
エアロゾル生成装置の電源ユニット。
(11)に記載のエアロゾル生成装置の電源ユニットであって、
上記第1閾値から上記第2閾値を引いた値は、上記第3閾値から上記第4閾値を引いた値より大きい、
エアロゾル生成装置の電源ユニット。
(1)から(12)のいずれかに記載のエアロゾル生成装置の電源ユニットであって、
上記電源ユニットの表面を構成するケース(ケース110)と、
上記電源から上記ヒータへの電力の供給を制御するように構成されるMCU(MCU1)と、を備え、
上記第1センサ(ヒータサーミスタT3)は、上記ヒータの近傍に配置され、上記ヒータの温度に関する値を出力し、
上記第2センサ(ケースサーミスタT4)は、上記ケースの近傍に配置され、上記ケースの温度に関する値を出力し、
上記第1センサの出力値が異常である場合、上記MCUを介さずに、上記充電と上記放電の一方又は両方を禁止する第5保護制御(図23のパターンPT5の保護制御)を実行し、
上記MCUは、上記第2センサの出力値が異常である場合、上記充電と上記放電の一方又は両方を禁止する第6保護制御(図23のパターンPT6の保護制御)を実行するように構成され、
上記電源ユニットは、複数のモードで動作可能であり、
上記複数のモードのうち上記第6保護制御が実行不能なモード(加熱モード)において、上記第5保護制御は実行可能である、
エアロゾル生成装置の電源ユニット。
(13)に記載のエアロゾル生成装置の電源ユニットであって、
上記複数のモードは、上記電源から上記ヒータへ放電する加熱モードと、スリープモードと、上記スリープモードから上記加熱モードへ遷移させるために経由する必要がある加熱前モード(アクティブモード及び加熱初期設定モード)と、を含み、
上記第6保護制御は、上記加熱モードと上記加熱前モードのうち上記加熱前モードにおいてのみ、実行可能である、
エアロゾル生成装置の電源ユニット。
110 ケース
119 スライダ
150 シャーシ
170 加熱部
1 MCU
2 充電IC
9 昇圧DC/DCコンバータ
12 残量計IC
17 フリップフロップ
HTR ヒータ
BAT 電源
Cn ヒータコネクタ
T1 電源サーミスタ
T2 パフサーミスタ
T3 ヒータサーミスタ
T4 ケースサーミスタ
Ch、Cu、Ct2、Ct3、Ct4 コンデンサ
Nt1、Nt2、Nt3、Nt4、Nu、Nb ノード
OPS 操作スイッチ
PT1~PT8 パターン
Claims (14)
- エアロゾル生成装置の電源ユニットであって、
電源と、
前記電源から供給される電力を消費してエアロゾル源を加熱するヒータが接続されるヒータコネクタと、
前記ヒータ又は前記電源の近傍に配置され、前記ヒータの温度に関する値又は前記電源の温度に関する値を出力する第1センサと、
前記第1センサとは離間した位置に設けられ、前記位置の温度に関する値を出力する第2センサと、を備え、
前記第1センサの出力値と前記第2センサの出力値の少なくとも一方が異常である場合、前記電源の充電と前記電源から前記ヒータへの放電の一方又は両方を、少なくとも一時的に禁止する、
エアロゾル生成装置の電源ユニット。 - 請求項1に記載のエアロゾル生成装置の電源ユニットであって、
前記電源から前記ヒータへの電力の供給を制御するように構成されるMCUを備え、
前記第1センサの出力値が異常である場合、前記MCUを介さずに、前記充電と前記放電の一方又は両方を禁止する第1保護制御を、実行し、
前記第2センサの出力値が異常である場合、前記MCUを介さずに、前記充電と前記放電の一方又は両方を禁止する第2保護制御を実行する、
エアロゾル生成装置の電源ユニット。 - 請求項2に記載のエアロゾル生成装置の電源ユニットであって、
前記第1保護制御の終了には、前記MCUの再起動が必要であり、
前記第2保護制御の終了には、前記MCUの再起動が必要である、
エアロゾル生成装置の電源ユニット。 - 請求項2又は3に記載のエアロゾル生成装置の電源ユニットであって、
複数のモードで動作可能であり、
前記複数のモードのうち前記第1保護制御と前記第2保護制御の一方が実行不能なモードにおいて、前記第1保護制御と前記第2保護制御の他方は実行可能である、
エアロゾル生成装置の電源ユニット。 - 請求項4に記載のエアロゾル生成装置の電源ユニットであって、
前記電源ユニットの表面を構成するケースを備え、
前記第1センサは、前記電源の近傍に配置され、前記電源の温度に関する値を出力し、
前記第2センサは、前記ケースの近傍に配置され、前記ケースの温度に関する値を出力し、
前記複数のモードのうち前記第2保護制御が実行不能なモードにおいて、前記第1保護制御は実行可能である、
エアロゾル生成装置の電源ユニット。 - 請求項5に記載のエアロゾル生成装置の電源ユニットであって、
前記第1保護制御は、全ての前記モードにおいて実行可能である、
エアロゾル生成装置の電源ユニット。 - 請求項1から6のいずれか1項に記載のエアロゾル生成装置の電源ユニットであって、
前記電源から前記ヒータへの電力の供給を制御するように構成されるMCUを、備え、
前記MCUは、
前記第1センサの出力値が異常である場合、前記充電と前記放電の一方又は両方を禁止する第3保護制御を実行し、
前記第2センサの出力値が異常である場合、前記充電と前記放電の一方又は両方を禁止する第4保護制御を実行するように構成される、
エアロゾル生成装置の電源ユニット。 - 請求項7に記載のエアロゾル生成装置の電源ユニットであって、
前記MCUは、
前記第1センサの出力値が正常になると、前記第3保護制御を終了し、
前記第2センサの出力値が正常になると、前記第4保護制御を終了するように構成される、
エアロゾル生成装置の電源ユニット。 - 請求項1から6のいずれか1項に記載のエアロゾル生成装置の電源ユニットであって、
前記電源ユニットの表面を構成するケースと、
前記電源から前記ヒータへの電力の供給を制御するように構成されるMCUと、を備え、
前記第1センサは、前記電源の近傍に配置され、前記電源の温度に関する値を出力し、
前記第2センサは、前記ケースの近傍に配置され、前記ケースの温度に関する値を出力し、
前記MCUは、
前記第1センサの出力値に基づき、前記電源の温度を取得し、
前記第2センサの出力値に基づき、前記ケースの温度を取得し、
前記電源の温度が第1閾値以上の場合、前記第1センサの出力値が異常であると判断し、且つ、前記充電と前記放電の一方又は両方を禁止する第3保護制御を実行し、
前記ケースの温度が第2閾値以上の場合、前記第2センサの出力値が異常であると判断し、且つ、前記充電と前記放電の一方又は両方を禁止する第4保護制御を実行するように構成され、
前記第1閾値は、前記第2閾値とは異なる、
エアロゾル生成装置の電源ユニット。 - 請求項9に記載のエアロゾル生成装置の電源ユニットであって、
前記第1閾値は、前記第2閾値より高い、
エアロゾル生成装置の電源ユニット。 - 請求項1から6のいずれか1項に記載のエアロゾル生成装置の電源ユニットであって、
前記電源ユニットの表面を構成するケースと、
前記電源から前記ヒータへの電力の供給を制御するように構成されるMCUと、を備え、
前記第1センサは、前記電源の近傍に配置され、前記電源の温度に関する値を出力し、
前記第2センサは、前記ケースの近傍に配置され、前記ケースの温度に関する値を出力し、
前記MCUは、
前記第1センサの出力値に基づき、前記電源の温度を取得し、
前記第2センサの出力値に基づき、前記ケースの温度を取得し、
前記電源の温度が第1閾値以上の場合、前記第1センサの出力値が異常であると判断し、且つ、前記充電と前記放電の一方又は両方を禁止する第3保護制御を実行し、
前記第3保護制御の実行後に前記電源の温度が前記第1閾値未満の第2閾値以下になると、前記第1センサの出力値が正常であると判断し、且つ、前記第3保護制御を終了し、
前記ケースの温度が第3閾値以上の場合、前記第2センサの出力値が異常であると判断し、且つ、前記充電と前記放電の一方又は両方を禁止する第4保護制御を実行し、
前記第4保護制御の実行後に前記ケースの温度が前記第3閾値未満の第4閾値以下になると、前記第2センサの出力値が正常であると判断し、且つ、前記第4保護制御を終了するように構成され、
前記第1閾値から前記第2閾値を引いた値は、前記第3閾値から前記第4閾値を引いた値とは異なる、
エアロゾル生成装置の電源ユニット。 - 請求項11に記載のエアロゾル生成装置の電源ユニットであって、
前記第1閾値から前記第2閾値を引いた値は、前記第3閾値から前記第4閾値を引いた値より大きい、
エアロゾル生成装置の電源ユニット。 - 請求項1から12のいずれか1項に記載のエアロゾル生成装置の電源ユニットであって、
前記電源ユニットの表面を構成するケースと、
前記電源から前記ヒータへの電力の供給を制御するように構成されるMCUと、を備え、
前記第1センサは、前記ヒータの近傍に配置され、前記ヒータの温度に関する値を出力し、
前記第2センサは、前記ケースの近傍に配置され、前記ケースの温度に関する値を出力し、
前記第1センサの出力値が異常である場合、前記MCUを介さずに、前記充電と前記放電の一方又は両方を禁止する第5保護制御を実行し、
前記MCUは、前記第2センサの出力値が異常である場合、前記充電と前記放電の一方又は両方を禁止する第6保護制御を実行するように構成され、
前記電源ユニットは、複数のモードで動作可能であり、
前記複数のモードのうち前記第6保護制御が実行不能なモードにおいて、前記第5保護制御は実行可能である、
エアロゾル生成装置の電源ユニット。 - 請求項13に記載のエアロゾル生成装置の電源ユニットであって、
前記複数のモードは、前記電源から前記ヒータへ放電する加熱モードと、スリープモードと、前記スリープモードから前記加熱モードへ遷移させるために経由する必要がある加熱前モードと、を含み、
前記第6保護制御は、前記加熱モードと前記加熱前モードのうち前記加熱前モードにおいてのみ、実行可能である、
エアロゾル生成装置の電源ユニット。
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