EA041655B1 - DEVICE GENERATING INHALED COMPONENT, CONTROL SCHEME, AS WELL AS CONTROL METHOD AND PROGRAM FOR CONTROL OF DEVICE GENERATING INHALED COMPONENT - Google Patents

Description

The field of technology to which the invention belongs

The present invention relates to an inhalable component generating device, to a control circuit, to a control method and control program for an inhalable component generating device, and in particular to an inhalable component generating device, to a control circuit, to a control method and a control program for an inhalable component generating device capable of receiving accurate battery voltage value and ensure the reliability of aerosol generation.

State of the art

Recently, in place of conventional cigarettes, inhalant generating devices have been proposed for generating an inhalable component by evaporating or spraying a flavor source such as tobacco or an aerosol source. Such an inhalant generating device has a load for evaporating or spraying an aroma source and/or an aerosol source, a power supply for supplying electric power to the load, a control circuit for performing a device control operation, and so on.

Patent Document 1 discloses an electronic smoking device having a heater, a battery, and a control device.

More specifically, a technology is disclosed for optimizing aerosol generation by deriving a battery voltage value from multiple voltage values measured for a puff by a user of an electronic smoking device and changing the PWM operating conditions for the next puff based on the derived voltage value.

Patent document 1 US 2016/0213066 A1.

The remaining battery level decreases as it is discharged. In order to stably perform aerosol generation regardless of the remaining battery level, it is preferable to adjust the electric power supplied to the heater according to the remaining battery level using PWM control or the like.

According to the configuration of Patent Document 1, a battery voltage value is derived from multiple voltage values measured while puffing. Therefore, it is not clear whether the output of the battery voltage value is either an open circuit voltage, which is obtained without an electrical connection between the power supply and the heater, or a closed circuit voltage, which is obtained with an electrical connection between the power supply and the heater, or both. Since the closed circuit voltage is affected by the internal resistance of the power supply, the value of the closed circuit voltage is different from the open circuit voltage. That is, according to the ratio of the open circuit voltage and the closed circuit voltage that are included in the multiple voltage values, the battery voltage value that is output may vary. Since the voltage value that is output as described above is likely to deviate from the actual value, there is such a problem that reliability of the aerosol generation is reduced.

Therefore, an object of the present invention is to provide an inhalable component generating device, a control circuit, a control method and a control program for an inhalable component generating device capable of obtaining an accurate battery voltage value and ensuring the reliability of aerosol generation.

The essence of the invention

According to one aspect of the invention, an inhalable component generating device is provided, comprising: a power supply;

a load group including a load configured to vaporize or atomize the source of the inhalable component by the action of electricity from the power source;

a tuner configured to correct a value or waveform of a voltage supplied to the load; and a control circuit configured to acquire a power supply voltage value, the control circuit performing a process (a1) of obtaining a closed circuit power supply voltage value in a closed circuit state in which the power supply and the load group are electrically connected; and a tuner control process (a2) based on the closed circuit voltage value.

Description of terms

The term respirable component generating device may mean a device for generating a respirable component by vaporizing or spraying a flavor source such as tobacco or an aerosol source, or may be a single body product, or may be a device composed of multiple components (blocks) that can be connected, being used as one product.

The term power supply refers to a unit serving as a source of electrical power and includes a battery, a capacitor, and the like. For example, as a battery can be used

- 1 041655 secondary battery such as a lithium-ion battery. The secondary battery may be a battery including a positive electrode, a negative electrode, a separator separating the positive electrode and the negative electrode from each other, and an electrolytic solution or an ionic liquid. The electrolyte or ionic liquid may be, for example, a solution containing an electrolyte. In the lithium ion battery, the positive electrode is made of a positive electrode material such as lithium oxide, and the negative electrode is made of a negative electrode material such as graphite. The electrolytic solution may be, for example, an organic solvent containing a lithium salt. Examples of the capacitor include an electric double layer capacitor and the like. However, the power supply is not limited to these examples, and any other secondary battery such as a nickel hydride battery, a primary battery or the like can be used.

The term load refers to a component that consumes power in an electrical circuit and is specifically used in this application to refer to a component primarily for generating an inhalable component. The load houses a heating element such as a heat generator and may include, for example, an electrical resistance heat generator, an induction heating (IH) element, and the like. In addition, an element for generating an inhalable component by the action of ultrasonic waves, a device for generating an inhalable component by means of a piezoelectric element, a nebulizer, and the like can be provided. In the case where the load is referred to as a load group, other components such as an element for emitting light, sound, vibration, or the like, in addition to the load for generating an inhalable component, may be included in the load group. In the case where a communication module or the like is provided, they may be included in the load group. In addition, a microcomputer or the like. in an electrical circuit, they are just elements that receive energy when a very small current is applied; however, this application assumes that they are not part of the load group.

The term aerosol means a dispersion of tiny particles of a liquid or solid in air.

With respect to the degradation diagnostic function, in general, examples of battery degradation include a decrease in capacity and an increase in resistance. The degradation diagnostic function may be, for example, a function to obtain a power supply voltage value to detect capacity degradation and determine whether the obtained value is equal to or greater than a lower limit value of a predetermined control range.

The open circuit voltage is highly dependent on the remaining battery level. Meanwhile, the closed circuit voltage, which is the voltage at the time of discharging, is affected not only by the remaining charge level of the battery, but also by the internal resistance of the battery. The value of internal resistance is highly dependent on temperature and deterioration of the battery. In other words, the closed circuit voltage represents the actual value of the battery voltage, reflecting temperature and degradation. According to the present invention, an inhalable component generating device, a control circuit, a control method, and a control program for an inhalable component generating device capable of ensuring the reliability of aerosol generation by correcting various variables, such as the voltage supplied to the heater, based on the closed circuit voltage, instead of the open circuit voltage, can be provided. chains.

Brief description of the drawings

Fig. 1 is a sectional view schematically illustrating the configuration of an inhalable component generating device according to one embodiment of the present invention.

Fig. 2 is a perspective view illustrating an example of the appearance of an inhalable component generating device.

Fig. 3 is a block diagram illustrating a configuration example of an inhalable component generating device.

Fig. 4 is a sectional view illustrating one example of the internal structure of the cartridge unit.

Fig. 5 is a sectional view showing another example of the internal structure of the cartridge unit.

Fig. 6 is a view illustrating a circuit diagram of an inhalable component generating apparatus (in a state where a power supply unit and a cartridge unit are connected).

Fig. 7 is a schematic diagram illustrating a charger and a cartridge pack capable of being attached to and detached from a power supply.

Fig. 8 is a view illustrating a circuit diagram of an inhalable component generating device (in a state where a power supply unit and a charger are connected).

Fig. 9 is a view illustrating the relationship between the voltage that is applied to the load and the act of inhalation.

Fig. 10 is a view schematically illustrating the relationship between the output value of the inspiratory sensor and the voltage that is applied to the load.

- 2 041655

Fig. 11 is a block diagram illustrating an example of a specific operation of an inhalable component generating device.

Fig. 12 is a view illustrating some temperature ranges for the power supply temperature and its corresponding control procedure.

Fig. 13 is a flowchart illustrating one example of degradation diagnostics.

Fig. 14 is a block diagram illustrating yet another example of a specific operating procedure for an inhalable component generating device.

Fig. 15 is a flowchart illustrating the sequence of actions that are performed when the temperature is abnormal.

Fig. 16 is a flowchart illustrating the sequence of actions that are performed during battery deterioration.

Fig. 17 is a flowchart illustrating an example of a charging operation.

Fig. 18A is a view schematically illustrating a connection between a power supply and a load.

Fig. 18B is a view illustrating an equivalent model of a power supply circuit.

Fig. 19 is a view illustrating the variation of the closed circuit voltage with time, and the like.

Fig. 20 is a view illustrating the relationship between inhalation detection and power supply control.

Fig. 21 is a curve illustrating the discharge characteristic of a secondary battery used as a power source.

Fig. 22A, 22B, and 22C are views illustrating an example of PWM control according to a power supply voltage value.

Fig. 23 is an example of the progress of the sequential control of an inhalable component generating device.

Fig. 24 is a view for explaining variations in an open circuit voltage value and a closed circuit voltage value (including a low temperature period).

Description of embodiments of the invention

An embodiment of the present invention will be described below with reference to the drawings. However, the specific constructions and electrical circuits described below are only examples of the present invention, and the present invention is not necessarily limited thereto. In addition, in the following, structural parts having the same function in principle will be described with the same item code number or item code numbers corresponding to each other; however, for ease of explanation, sometimes position code numbers will be omitted. Although the configurations of some parts of the device differ between a certain drawing and other drawings, it should be noted that they do not constitute a significant difference in the present invention and any configuration can be applied.

1. Device configuration.

The inhalable component generating device 100 according to the present embodiment includes a power supply unit 110 and a cartridge unit 120 configured to be attached to and detached from the power supply unit as shown in FIG. 1 and 2. In the present embodiment, an example is shown in which the power supply unit 110 and the cartridge unit 120 are made separately; however, as an inhalable component generating device according to the present invention, they can be combined.

The general shape of the inhalable component generating device 100 is not particularly limited, and it may take various shapes. For example, as shown in FIG. 2, the inhalable component generating device can be configured such that the overall shape becomes a round shape. More specifically, the inhalable component generating device 100 assumes the form of a single rod when the power supply unit 110 and the cartridge unit 120 are connected in the axial direction. If the overall shape of the device is in the form of a single rod, as described above, the user can inhale like a user smoking a traditional cigarette. In the example of FIG. 2, the end portion shown on the right side is the inhalation passage portion 142, and on the opposite end portion, provides a light emitting unit 40 for emitting light according to the operating state of the device, etc. The inhalable component generating device may be configured such that a user attaches a mouthpiece (not shown in the drawings) to the inhalation channel portion 142 for inhaling and inhaling. The specific dimensions of the device are not particularly limited, and by way of example, the diameter may be about 15 to 25 mm and the overall length may be about 50 to 150 mm, so that the user can use the device while holding it in their hand.

Power unit.

The power supply 110 includes a body member 119, a power source 10 inserted into the body member, an inhalation sensor 20, a control circuit 50, etc. as shown in FIG. 1. The power supply unit 110 further includes a push button 30 and a light emitting unit 40. However, not all of these individual elements are required components of the inhalable component generating device 100, and one or more elements may be omitted. In addition, one or more elements may be placed in the cartridge unit 120 rather than in the power supply unit 110.

The housing element 119 may be a cylindrical element, and although its material is not particularly limited, the housing element may be made of metal or plastic.

The power source 10 may be a rechargeable secondary battery such as a lithium ion battery or a nickel hydride (Ni-MH) battery. The power source 10 may be a primary battery or a capacitor instead of a secondary battery. The power supply 10 may be a power supply housed in the power supply 110 so as to be replaceable, or may be a power supply built into the power supply as a result of assembly. The number of power sources 10 may be one or more.

The inspiratory sensor 20 may be a sensor for outputting a predetermined output value (eg, a voltage value or a current value), for example, according to the flow rate and/or flow rate of the gas that passes through it. The inhalation sensor 20 is used to detect the puffing act (inhalation act) performed by the user. As the inhalation sensor 20, a variety of sensors can be used, and for example, a microphone capacitance sensor, a flow rate sensor, or the like can be used.

The push button 30 is a button that can be actuated by a user. Although the button is referred to as a push button, the button is not limited to a part having a button part that moves when pressed, and may be an input device such as a touch button. The placement position of the push button 30 is also not particularly limited, and the push button can be placed at an arbitrary position on the body of the inhalable component generating device 100. As an example, the push button 30 can be placed on the side surface of the body member 119 of the power supply 110 so that the user can easily affect her. Multiple push buttons 30 (input devices for receiving an input command from a user) may be provided.

The light emitting unit 40 includes one or more light sources (eg, LEDs) and is configured to emit light in a predetermined mode at a predetermined time. For example, in one embodiment, it is preferred that the light emitting unit is configured to emit light with multiple colors. Examples of operation of the light emitting unit 40 include a function to notify the user of the current operation mode of the device, a function to notify the user of an abnormal occurrence if a malfunction occurs, and so on. In addition, in view of these functions, as a notification device provided in the inhalable component generating device 100, in addition to the light emitting unit, for example, one of a vibration device for generating vibration, a sound device for a sound signal, a display device for displaying a predetermined information, etc. or their combination. As an example, the light emitting unit 40 may be placed on the end portion of the power unit 110 . In the inhalant component generating device 100, if the light emitting unit 40 located at the opposite end portion from the end portion where the inhalation channel portion 142 is located emits light according to the act of inhalation performed by the user, the user can easily inhale the inhalable component like a user smoking a traditional cigarette.

Fig. 3 is a block diagram illustrating a configuration example of an inhalable component generating device. As shown in FIG. 3, the inhalable component generating device 100 includes a temperature sensor 61, a voltage sensor 62, etc., in addition to the above-mentioned components.

The temperature sensor 61 is a sensor for obtaining or estimating the temperature of a predetermined object located in the inhalable component generating device 100. The temperature sensor 61 may be a sensor for measuring the temperature of the power supply 10 or may be a sensor for measuring the temperature of an object other than the power supply 10 . Also, instead of accommodating a dedicated temperature sensor, for example, a temperature detector embedded in a predetermined electrical circuit component can be used. The specific process based on the output of the temperature sensor 61 will be described below. As the temperature sensor 61, for example, a thermistor, a thermocouple, a resistance thermometer, an integral (IC) temperature sensor, or the like can be used; however, the temperature sensor is not limited to this. The number of temperature sensors 61 is not limited to one and may be two or more.

Voltage sensor 62 is a sensor for measuring power supply voltage as one example. A sensor may be provided to measure a predetermined voltage other than the power supply voltage. The specific process based on the output of the voltage sensor 62 will be described below. The number of voltage sensors 62 is also not

- 4 041655 is limited to one and may be two or more.

The inhalable component generating device 100 may further include a radio communication device (not shown in the drawings) and/or a communication port (not shown in the drawings) to enable connection with an external device, etc. according to needs. For example, the inhalable component generating device may be configured such that power supply status information, inhalation information, and the like can be transmitted to an external device through it.

cartridge block.

The cartridge unit 120 is a unit containing an inhalant source therein, and includes a body member 129, a reservoir 123, a flavoring unit 130, a load 125 for evaporating or atomizing the inhalant source, etc., as shown in FIG. 1 and 4. However, not all of the above items are necessarily necessary components of the inhalable component generating device 100. Specifically, in the present embodiment, an example will be described in which both the aerosol generating reservoir 123 and the flavoring unit 130 are placed to generate the flavor component. (described in detail below); however, only one of them may be provided.

According to the main purpose of the cartridge unit 120, by way of example, first, as a first step, the aerosol source contained in the reservoir 123 is vaporized or atomized by the action of the load 125. After that, as a second stage, the generated aerosol flows into the flavoring unit 130, so that the smoking flavor component is added, and is eventually inhaled through the user's mouth.

The housing element 129 (see FIG. 4) may be a cylindrical element, and although its material is not particularly limited, the housing element may be made of metal or plastic. The cross-sectional shape of the housing element 129 may be the same as that of the housing element 119 of the power supply 110 . It has been described that the cartridge unit 120 can be connected to the power supply unit 110. More specifically, as an example, the connecting part 121 provided at one end of the cartridge unit 120 may be physically connected to the connecting part 111 located at one end of the power supply unit 110. In FIG. 4, the connecting part 121 is shown as a threaded part; however, the present invention is not necessarily limited to this. Instead of being connected using threaded parts, the connecting part 111 and the connecting part 121 may be connected by means of magnets. When the connecting parts 111 and 121 are connected, the circuitry in the power supply 110 and the circuitry in the cartridge block 120 can be electrically connected (which will be described in detail).

Inside the connection part 121, as shown in FIG. 4, a cylindrical member is placed to form an inlet for air to enter the block so as to be extended in the axial direction of the body member 129. In addition, one or more holes 121b are formed in the connection portion 121 extending in the radial direction so that outside air can enter through hole 121b. The inlet may be formed in the connecting portion 111 of the power supply 110 rather than in the connecting portion 121 of the cartridge unit 120. Alternatively, the inlet may be provided in both the connecting portion 111 of the power supply 110 and the connecting portion 121 of the cartridge unit 120.

Reservoir 123 is a storage element for storing an aerosol source that is liquid at room temperature. The reservoir 123 may be a porous element that is made of a material such as a polymer fabric. A source that is solid at room temperature can also be used as an aerosol source. Here, the form in which the aerosol source is stored in the reservoir 123 will be mainly described; however, the reservoir 123 may store a flavor source.

As an aerosol source, for example, a polyhydric alcohol called glycerol or propylene glycol, water, etc. can be used. The aerosol source may not contain any aromatic component. Alternatively, the aerosol source may comprise a tobacco raw material or an extract isolated from the tobacco raw material that releases a smokable flavor component when heated.

As an example, load 125 may be a heating element such as a heater, an ultrasonic element for generating, for example, fine droplets by ultrasonic waves, or the like. Examples of the heating element include a heating resistor (eg, a heating wire), a ceramic heater, an induction heating type heater, and the like. However, load 125 may be a load for generating an aroma component from a source of aroma.

The structure around the tank 123 will be described in more detail. In the example according to FIG. 4, a wick 122 is provided to be in contact with the reservoir 123, and a load 125 is placed to surround a portion of the wick 122. The wick 122 is an element for sucking an aerosol source from the reservoir 123 using capillary forces. The wick 122 may be, for example, glass fiber, a porous ceramic material, or the like. When part of the wick 122 is heated, the source of aerosol held in it evaporates or atomizes. In addition, in an embodiment in which the aroma source is stored in the reservoir 123, the aroma source is vaporized or sprayed.

In the example according to FIG. 4, a heating wire formed into a spiral is placed as the load 125. However, the load 125 is not necessarily limited to a particular shape as long as it can generate an inhalable component, and can be formed in an arbitrary shape.

The flavor unit 130 is a unit having a flavor source stored therein. As a specific configuration, various configurations can be used, and the flavor unit is not particularly limited. For example, a replaceable cartridge may be provided as flavor unit 130. In the example according to FIG. 4, the fragrance block 130 has a cylindrical element 131 which is filled with a fragrance source. More specifically, this cylindrical element 131 includes a film element 133 and a filter 132.

The aroma source is made in the form of a raw material fragment, which is a plant material and adds a smoking aromatic component to the aerosol. As the piece of raw material that constitutes the flavor source, a compact formed by molding a tobacco material such as shredded tobacco or a tobacco raw material into a granular form can be used. Alternatively, a compact formed by molding the tobacco raw material into a sheet-like form can be used as a flavor source. Also, the raw material portion constituting the flavor source may be formed from a plant (such as mint or grass) other than tobacco. A flavorant may be added to the flavor source.

In the present embodiment, a punch 127a is provided within the cartridge unit 120 as shown in FIG. 4 so that the film member 133 of the fragrance unit 130 can be destroyed by the punch 127a. More specifically, the piercer 127a is a cylindrical cannula and is formed to be able to pierce with its front end side into the film element 133. The piercer 127a can be held by a separating member 127b to separate the cartridge unit 120 and the flavoring unit 130. The separating member 127b is, for example, polyacetal resin. When the piercer 127a and the fragrance unit 130 are connected, one flow is formed inside the cartridge unit 120 and aerosol, air, etc. is formed. flow into the duct.

More specifically, as shown in FIG. 4, the duct is constituted by an inlet 121a formed in the reservoir 123, an internal duct 127c connected thereto, a duct in the piercer 127a, a duct in the flavor block 130, and an inhalation port 141 (described in detail below). In addition, in one embodiment, it is preferable that inside the punch 127a, which is a hollow needle, a mesh having such a density that the aroma source cannot pass through it is placed. The inhalable component generating device 100 may include an inhalation channel portion 142 having an inhalation opening 141 formed for a user to inhale the inhalable component. The inhalation channel portion 142 may be attachable to and detachable from the inhalable component generating device 100, or may be integral with the inhalable component generating device, i. e. inseparable.

In addition, the flavor block may be, for example, a block having such a structure as shown in FIG. 5. The fragrance block 130' has a fragrance source contained in a cylindrical member 131' and a film member 133' placed at one open end of the cylindrical member 131' and a filter 132' placed at the other open end. The cylindrical element 131' can be placed in the cartridge unit 120 so as to be replaceable. Other structural details in Fig. 5 are the same as in FIG. 4, so that they do not need to be re-described. Moreover, in the example of FIG. 5, there is a gap between the outer surface of the cylindrical member 131' of the flavor block 130' and the inner surface of the body member 129; however, such a gap may not be formed. In this case, the air that is sucked in passes through the cylindrical element 131'. As the flavor unit 130', various types of units containing various types of flavor sources can be commercially available, so that it can be placed in the inhalant component generating device 100 according to the user's preference and inhaled. In addition, the flavor block 130' can be configured such that when the flavor block 130' is connected to the cartridge unit 120, the end portion of the flavor block 130' protrudes and is exposed from the body member 129. According to this configuration, since the replaceable flavor block 130' serves as part of the inhalation channel 142, the user can use the inhalable component generating device 100 in hygienic conditions without touching the housing element 129 during inhalation.

Control scheme.

Again with reference to FIG. 3, the control circuit 50 of the inhalable component generating device 100 may be a circuit including a processor having a memory and a central processing unit (CPU) (both of which are not shown in the drawings), various electrical circuits, and so on. The processor is required only as a component to carry out various processes, no matter what its name may be, and may be a component referred to as, for example, an MCU (microcontroller unit), microcomputer, control integrated circuit (IC), control unit, or the like. As the control circuit 50, a single control circuit may be configured to control the functions of the inhalable component generating device 100, or multiple control circuits may be configured to be separate to perform a variety of functions.

Next, a structure will be described as an example in which a charging device 200 is provided separately from the inhalable component generating device 100. In this case, the first control circuit may be placed in the device and the second control circuit may be placed in the charger, so that predetermined functions can be performed by individual control schemes. Meanwhile, as another design example of the inhalable component generating device 100, it is also possible to embed the charging function in the main body of the device, in which case a single control circuit can be formed. Likewise, in the present embodiment, according to the physical configuration of the device, etc. multiple control schemes may be provided, and how to allocate multiple control among the control schemes may be appropriately changed.

Electrical configuration.

Below, an example of a specific circuit configuration of the inhalable component generating device 100 according to the present embodiment will be described with reference to the drawings. As shown in FIG. 6, as a single circuit of the respirable component generating device 100, the circuit of the power supply unit 110 and the circuit of the cartridge unit 120 are shown so that they can be connected.

A load 125 is placed in the circuitry of the cartridge block 120 and both ends of the load 125 are connected to a pair of electrical leads 121t. In the present embodiment, a pair of electrical terminals 121t constitutes the connecting part 121 in terms of electrical connection.

The power supply circuit 110 includes a control IC 50A, a power supply 10, a protection circuit 180, a first switch 172, a second switch 174, and so on. As shown schematically in FIG. 7, the power supply circuit is configured such that the above-described cartridge block circuit 120 is connected to the power supply circuit 110, and the charger circuit 200 (described in detail below) can also be connected.

With reference again to FIG. 6, in the circuit of the power supply unit 110, the high potential side of the power supply unit 110 and the control unit 50A are connected by a circuit 110a, a circuit 110b, and a circuit 110c. Circuit 110a connects the high potential side of power supply 10 and node 156, and circuit 110b connects node 156 and node 154, and circuit 110c connects node 154 and control unit 50A. A circuit 110d departs from the node 154, and the node 154 and the protection circuit 180 are connected by the circuit 110d. Circuit 110d is provided with two switches 172 and 174.

A resistor 161 is disposed between the portion of circuit 110a connected to the high potential side of the power supply 10 and the protection circuit 180. A first resistor 150 is placed in circuit 110b, and a second resistor 152 is placed in circuit 110c. Moreover, in this example, one of the pair of electrical terminals 111t is connected to the node 156 and the other is connected to the node 154. In addition, the control unit 50A and the part of the circuit 110d between the second switch 174 and the protection circuit 180 are connected by a circuit 110e, and a resistor 162 is placed in this circuit 110e. The protection circuit 180 and the circuit 110a are also connected by a circuit 110f, and in this circuit 110f a capacitor 163 is placed. In this embodiment, it is preferable that the resistance values of the first resistor 150 and the second resistor 152 are known, although the present invention is not limited to this. The first resistor 150 may be a resistor known to the control unit 50A and the external device. Similarly, the second resistor 152 may be a resistor known to the control unit 50A and the external device. In addition, the electrical resistance value of the first resistor 150 and the electrical resistance value of the second resistor 152 may be the same.

The first switch 172 electrically connects and disconnects the power supply 10 and the load 125. The first switch 172 may be a MOSFET (metal oxide semiconductor field effect transistor), for example. The first switch 172 may be a switch serving as a so-called discharge FET (Field Effect Transistor). The switching of the first switch 172 is controlled by the control unit 50A. More specifically, if the first switch 172 is closed (ie, on), power is supplied from the power source 10 to the load 125; whereas if the switch 172 is open (ie, off), no power is supplied.

The switching of the first switch 172 may be controlled such that PWM (pulse width modulation) may be executed on the load 125. However, instead of PWM control, PFM (pulse frequency modulation) can be executed. The PWM control on duration and the switching frequency for the PFM control can be set according to various parameters such as the voltage value of the power supply 10 . The specific circuit configuration with respect to the first switch 172 is not necessarily limited to the configuration described below, and may include a parasitic diode. The parasitic diode can be designed so that when any external device,

- 7 041655 such as the charger is not connected, the direction in which the current from the power supply 10 flows into the parasitic diode through the node 154 becomes the reverse direction.

The second switch 174 is electrically connected to the node 154 through the first switch 172. The second switch 174 may also be configured as a MOSFET, for example, and be controlled by the control unit 50A. More specifically, the second switch 174 may be configured to transition between an open state to cut off current from the low potential side of the power supply 10 to the high potential side, and a closed state to flow current from the low potential side of the power supply 10 to the high potential side. In addition, the second switch 174 may turn on a parasitic diode in which the direction in which the current flows to charge the power supply 10 becomes the reverse direction.

In the circuit configuration described above, current from power supply 10 mainly passes through node 156, load 125, node 154, and switch 172 (in that order) and flows back to power supply 10, thereby heating load 125. 10 power passes through the resistor 150. Therefore, if the resistance value of the resistor 150 is set to a much higher value than the load resistance value 125, the loss due to the current flowing into the resistor 150 can be prevented.

Charger circuit configuration.

Now, an example of a specific circuit configuration of the charger 200 will be described below with reference to FIG. 8. In addition, in FIG. 8, the circuit configuration of the side of the power supply 110 is the same as in FIG. 6.

The external shape of the charger 200 is not limited, and an arbitrary shape can be selected. As an example, charger 200 may be in a form similar to a USB (Universal Serial Bus) memory card having a USB terminal that can be connected to a USB port. As another example, the charger 200 may be in the form of a tray support for supporting the power supply, or in the form of a container for housing the power supply. If the charger 200 is configured in the form of a tray or in the form of a container, it is preferable that the external power supply 210 is mounted inside the charger 200 and the charger is of such a size and weight that the user can carry the charger with him.

As shown in FIG. 8, as the charger circuit 200, a charge control unit 250 (charge control IC), an inverter 251 for converting alternating current (AC) to direct current (DC), a converter 253 for increasing or decreasing the output voltage of the inverter 251, etc. are provided. .d. The charger 200 may be a charger including a charging current source 210 housed therein to supply electrical power for charging, or may use another device or commercial power supply as an external power source. In addition, in the case where the charging current source 210 is provided inside the charger 200 and outputs constant current, the inverter 251 may not be required. Moreover, the charger 200 is provided with a current sensor 230 for detecting the charging current value supplied to the power supply 10 and a voltage sensor 240 for obtaining a voltage difference between a pair of electrical terminals 211t (connecting parts 211). Voltage sensor 240 may be configured to receive a voltage value that is applied to first resistor 150 in conjunction with control circuit 50 and switches 172 and 174.

The charging control unit 250 may be a unit having one or more functions including, for example, detecting the attachment of the power supply unit 110, determining the type of the attached object, and controlling charging based on the current sensor output value and/or the voltage sensor output value. However, instead of the charger 200, the control unit 50A of the inhalable component generating device 100 can be configured to perform one or more of these functions. Details regarding the aforementioned functions will be described below.

2. Work management.

Examples of the functions of the inhalable component generating device 100 include the following.

(a 1) Power supply management;

(a 2) light emission control;

(a 3) controlling operation based on the temperature of the power supply;

(a 4) degradation diagnostic function;

(b1) detecting the connection of the charger;

(b2) charging control.

In the following, these functions will be described in that order.

(a1) Power supply control.

The function of the control circuit 50 is to perform an operation of supplying power to the load 125 based on a request signal from the request sensor. By request sensor is meant a sensor capable of providing, for example, a signal to request the action of the load 125, namely a sensor that

- 8 041655 issues a request regarding the generation of the inhaled component. More specifically, the request sensor may be, for example, a push button 30 that can be pressed by the user, or an inhalation sensor 20 for detecting the user's act of inhaling. In other words, the control circuit 50 may be executed to perform a predetermined operation in response to pressing the push button 30 and/or in response to the detection result of the inspiratory sensor 20. The value relating to the load operation parameter 2 can be measured by a predetermined counter.

With regard to the end of the power supply, the following control can be performed. In other words, the control circuit 50 determines whether a power-off time to the load 125 has been detected, and terminates power supply in the case where the power-off time has been detected. The control circuit 50 may measure a value related to the load operation parameter 125 (such as at least one of the amount of electricity supplied to the load, the duration of the load, the consumption of the source of the respirable component, etc.). More specifically, the power-off time may be the time when the inspiratory sensor 20 has determined the end of the action to use the load. For example, the off time may be the point in time when the completion of the user's inhalation act was detected. In addition, the power supply may be cut off if the release of the push button 30 after being pressed is detected.

In addition, the end of the power supply can be performed based on the expiration of the estimated time. In other words, the power supply can be stopped at the point in time when the predetermined turn-off time elapses during the power supply. In order to perform control based on the estimated turn-off time, the turn-off time can be set (between 1.0 and 5.0 s, preferably between 1.5 and 3.0 s, and more preferably between 1.5 and 2.5 s) , determined based on the time required for a typical user to complete one act of inspiration.

An example of the estimated turn-off time will be briefly described with reference to FIG. 9. The horizontal axis represents time, and the upper part shows the change in the amount of inhalation, and the lower part shows the discharge FET signal (corresponding to the waveform of the voltage that is applied to the load). In this example, first, when it is determined that inspiration has started based on the output of the inspiratory sensor 20 (inspiratory amount or inspiratory rate), the power supply to the load is started. In FIG. 9, time t2 represents the point in time when inhalation is completed. In the case of applying the estimated off time, although the end of inhalation is actually determined at time t2, after the predetermined estimated off time (here, time t1) has elapsed, the power supply is forcibly stopped. If the estimated turn-off time is set as described above, it is possible to reduce the variation in the amount of aerosol generated whenever power is applied. Therefore, it is possible to improve the user's experience of inhaling the aerosol. In addition, since the continuous power supply to the load 125 is prevented for a long time, the service life of the load 125 can be extended.

In addition, the control circuit 50 may be configured to acquire values related to the load operation parameter during one puffing act and output the sum of the obtained values. In other words, the control circuit measures the amount of electricity supplied to the load, the duration of the load, and so on. during one act of tightening. The duration of operation may be the sum of the time periods when the electric pulse is applied. In addition, the control circuit may be configured to measure the amount of the inhalable component source consumed per puff. The consumption of the source of the inhaled component can be estimated, for example, by the amount of electricity supplied to the load. In the case where the inhalant source is a liquid, the flow rate of the inhalant source may be inferred based on at least the weight of the inhalant source remaining in the reservoir, or may be inferred based on at least the output of a sensor that measures the height of the level of the liquid source of the inhaled component. The load performance parameter during one puff act may be derived based on at least the load temperature (eg, at least one of the highest load temperature, the amount of heat generated by the load, etc. during the puff period).

A further description of a specific example of operation based on the inspiratory sensor output will be made with reference to FIG. 10. FIG. 10 is a view schematically illustrating the relationship between the output value of the inspiratory sensor and the voltage that is applied to the load. In this example, the control circuit 50 detects whether the output value of the inspiratory sensor is equal to or greater than the first reference value O1 or not, and in the case where the output value is equal to or greater than the reference value, the control circuit determines that the act of inhalation has been performed. At this point in time, a power supply request is triggered. The control circuit detects whether the output value of the inspiratory sensor is equal to or less than the second O2 reference value or not, and in the case where the output value is equal to or less than the reference value, the control circuit determines this as the timing of power cut.

- 9 041655 energy.

As an example, the control circuit 50 may be configured to detect inhalation only when the absolute value of the output value of the inspiratory sensor is equal to or greater than the first reference value O1. Since the detection using the second reference value O2 is detection for performing a transition from a state in which the load is already in effect to a state in which the load is not in effect, the second reference value O2 may be smaller than the first reference value O1.

With respect to the load action mode, for example, in the case where the power supply voltage value is relatively high, the pulse width during PWM control can be made narrower (see the middle part of the graph in Fig. 10), and in the case where the power supply voltage value power supply is relatively low, the pulse width during PWM control can be made wider (see the bottom of the graph in Fig. 10). In principle, the value of the power supply voltage decreases as the level of charge of the power supply decreases. Therefore, in one embodiment, it is preferable to adjust the amount of electricity according to the voltage value of the power supply in all such situations. For example, according to this control method, it is possible to make the actual value of the voltage (power) supplied to the load, in the case where the voltage value of the power supply is relatively high, the same or substantially the same as in the case where the voltage value of the power supply is relatively low. In addition, it is preferable to perform PWM control using a longer on duration in the case where the power supply voltage value is lower. According to this control method, regardless of the residual amount of electric power supplied, it becomes possible to properly correct the amount of aerosol generated during the puffing act. If the amount of aerosol that is generated during the act of puffing is made nearly uniform, the user experience of inhaling the aerosol can be improved.

(a2) Controlling light emission from LEDs and others.

The inhalable component generating device according to the present embodiment may be a device in which the light emitting unit 40 (see Fig. 1, etc.) operates as follows. However, as described above, it is also possible to provide information to the user by notification means such as sound or vibration instead of emitting light. Fig. 11 is a block diagram illustrating a specific example of the operation of the inhalable component generating device 100.

First, in step S101, the control circuit 50 (see FIG. 3) detects whether inhalation has been started. In the case where the start of inhalation is not detected, the control circuit 50 repeats step S101; while in the case where the start of inhalation has been detected, the control circuit proceeds to step S102.

Then, in step S102, the control circuit obtains the value Vbatt of the voltage supplied from the power supply 10, and determines whether the obtained value is greater than the critical discharge voltage value (for example, 3.2 V) of the power supply 10. Since the situation where the voltage value V _batt of the voltage of the power supply 10 is equal to or smaller than the critical discharge voltage value means a case where the residual amount of electric power supplied is insufficient, in step S122, the control circuit controls the light emitting unit 40 so that the light emitting unit emits light in predefined mode. More specifically, for example, the control circuit may control the light emitting unit so that the light emitting unit flashes red.

In the case where it is determined in step S102 that the residual amount of electric power supplied is sufficient because the power supply voltage value _Vbatt is larger than the critical discharge voltage value, and then in step S103 the control circuit determines whether the power supply voltage value Vbatt is large, than the value of the critical discharge voltage, and whether it is equal to or less than the value obtained by subtracting Δ from the full charge voltage or not. In addition, Δ represents a positive value. According to whether the value Vbatt of the power supply voltage is within this range, it is determined whether to turn on the power supply with 100% duty cycle, as will be described below. In the case where the voltage value of the power supply is in the appropriate range, in step S104, power supply is performed with 100% on duration. Although, without limitation, by way of example, the light emitting unit 40 may be controlled to shift to a blue indication (step S105).

Meanwhile, in the case where it is determined in step S103 that the power supply voltage value Vbatt is not in the above range, in step S123, the control circuit determines whether the power supply voltage value Vbatt is larger than the value obtained by subtracting Δ from the full charge voltage, and whether it is equal to or less than the full charge voltage or not. If the voltage value of the power supply is in this range, in step S124, the control circuit supplies power using PWM control, thereby ensuring constant power control.

- 10 041655

In the present embodiment, in step S106, the inspiratory time T _L is set to 0, and then, in step S107, At is added to the inspiratory time T _L ; this updates the inspiratory time.

Then, in step S10, the control circuit determines whether the end of inhalation has been detected, and in the case where the end of inhalation has been detected, the control circuit proceeds to step S109 and cuts off the power supply to the load. Meanwhile, even if the end of inhalation has not been detected, if it is determined in step S128 that the inspiratory time T _L is equal to or longer than the predetermined upper limit time, the control circuit proceeds to step S109 and cuts off the power supply to the load. Then, in step S110, the control circuit turns off the light emitting unit 40.

In step S111, the total time T _A is updated. In other words, the current inspiration time TL is added to the total TA time up to this point, which updates the total TA time. Then, in step S112, the control circuit determines whether the total time TA exceeds a predetermined given inspiratory time (for example, 120 s). In the case where the cumulative time does not exceed this inspiratory time, the control circuit determines that continuous application is possible and returns to the flow from step S101. Meanwhile, in the case where the total time TA exceeds this inspiratory time, the control circuit judges that the fragrance source in the fragrance unit 130 or the aerosol source in the reservoir 123 is insufficient or depleted, and stops the power supply to the load in step S115 described later.

Meanwhile, in the case where the cumulative time exceeds this inspiratory time, the control circuit detects whether inhalation has been started in step S113, and determines whether inhalation has continued for a predetermined time (for example, 1.0 s) in step S114, and if it is determined that inhalation has continued for a predetermined time or longer, in step S115, the control circuit disables power supply to the load. In this case, in step S116, in order to inform the aforementioned power supply prohibition state, the control circuit controls the light emitting unit so that the light emitting unit emits light in a predetermined mode (for example, blinking blue), and after the predetermined time has elapsed in step S117, the control circuit cancels the power cut state. However, instead of expiration of the predetermined time, replacement of the fragrance unit 130 or cartridge unit 120 with a new one or replenishment of the fragrance source or aerosol source can be applied as a condition for canceling the power-prohibition state in step S117.

According to the above-described series of operations, according to the remaining charge level of the power source, the load operation mode is appropriately changed, and the user can understand the current operation state of the inhalable component generating device through the light emitting unit 40.

(a3) Operation control based on power supply temperature.

The respirable component generating device 100 according to the present embodiment can be configured to determine whether the power supply temperature T _batt is in a predetermined temperature range and determine whether or not to perform a predetermined operation based on the result of the determination. In FIG. 12 shows specific examples of temperature ranges. In this example, steps are set from the first temperature range to the fourth temperature range. However, not all of the four may be configured, but only one, two or three of them.

The first temperature range is a temperature range related to diagnosis resolution using SOH (health status) representing the health state of the power supply, and has a temperature upper limit T1a and a temperature lower limit T1b. The specific numerical values of upper temperature limit and lower temperature limit can be set appropriately. In addition, the unit of SOH can be %. In this case, assuming that the SOH of the new device is 100 (%), the SOH when the device has been worn to such a state that charging and discharging is difficult can be set to 0 (%). In addition, as another example, the value obtained by dividing the current capacity when fully charged by the capacity when the new device is fully charged can be used as the SOH.

The upper temperature limit T1a is not limited, and, for example, in view of the temperature at which there is a possibility that the structures and/or compositions of the electrodes and the electrolytic solution of the power supply could change (or the temperature at which the change becomes noticeable), the temperatures at which there is a possibility that a gaseous decomposition product might be released (or a temperature at which the emission becomes noticeable), or the like, the upper temperature limit may be set to a value lower than or equal to the corresponding temperature. If SOH is produced at a temperature equal to or higher than the upper temperature limit T1a, since the effect of temperature is strong, it is difficult to obtain an adequate degradation diagnostic result. As one example, the temperature T1a may be 60°C. If the temperature range is configured as described above, degradation diagnostics

- 11 041655 can be made in the range in which changing the structure of the power supply, etc. does not occur, and the emission of a gaseous decomposition product is prevented. Therefore, it is possible to obtain an adequate result of degradation diagnostics.

For example, considering the temperature at which there is a possibility that the decrease in output power due to low temperature could become predominant compared to the decrease due to SOH (or the temperature at which it becomes noticeable), the lower temperature limit T1b can be adopted higher than or equal to the corresponding temperature. For example, the temperature T1b is 15°C. In general, to obtain the SOH results, a measure indicating the deterioration of the capacitance of the power supply 10, such as a decrease in output power, is applied. Therefore, in a temperature range in which output power reduction causes more than SOH, it is difficult to obtain an adequate degradation diagnostic result. In other words, if the degradation diagnosis is valid only when the power supply temperature is in the first temperature range, which is determined by the upper temperature limit T1a and the lower temperature limit T1b, the influence of the power supply temperature on the degradation diagnostic result can be minimized. Therefore, it becomes possible to obtain an adequate result of degradation diagnostics.

The second temperature range is a temperature range related to enabling the power supply to be discharged, and has an upper temperature limit T2a and a lower temperature limit T2b. The specific numerical values of upper temperature limit and lower temperature limit can be set appropriately. For example, the upper temperature limit T2a may be set based on the same control parameter as for the upper temperature limit T1a of the first temperature range. As an example, the temperature T2a may be 60°C. In addition, as another example, the upper temperature limit T2a may be different from the upper temperature limit T1a. For example, considering the temperature at which there is a possibility that the internal resistance might increase excessively due to coagulation of the electrolytic solution or the ionic liquid of the power supply (or the temperature at which the increase in internal resistance becomes noticeable), the lower temperature limit T2b can be set to the value higher than or equal to the corresponding temperature. The temperature T2b may be, for example, -10°C. Since the second temperature range, which is determined by the upper temperature limit T2a and the lower temperature limit T2b, is the range in which the structures and/or compositions of the electrodes and the electrolytic solution of the power supply do not change, and coagulation of the electrolytic solution or the ionic liquid of the power supply does not occur, it is possible to improve the discharge reliability of the power supply, and to lengthen the service life of the power supply.

The third temperature range is a temperature range related to enabling charging of the power supply, and has a temperature upper limit T3a and a temperature lower limit T3b. Like the above ranges, the specific numerical values of the upper temperature limit and the lower temperature limit can be set appropriately.

Although not limited, for example, the upper temperature limit T3a may be set based on the same control parameter as the upper temperature limit T1a of the first temperature range. As an example, the upper temperature limit T3a is 60°C. In addition, as another example, the upper temperature limit T3a may be different from the upper temperature limit T1a. For example, in the case where the power supply is a lithium ion secondary battery, there is a possibility that if voltage is applied at a low temperature, lithium metal might be deposited on the surface of the negative electrode. Considering the temperature at which there is a possibility that the so-called electrocrystallization phenomenon (or the temperature at which electrocrystallization becomes noticeable) might occur, the lower temperature limit T3b can be set to a value higher than or equal to the corresponding temperature. For example, the lower temperature limit T3b is 0°C. Since the third temperature range, which is defined by the upper temperature limit T3a and the lower temperature limit T3b, is the range in which the structures and/or compositions of the electrodes and the electrolytic solution of the power supply do not change and electrocrystallization does not occur, it is possible to improve the charging reliability of the power supply. and prolong the life of the power supply.

The fourth temperature range is a temperature range related to enabling fast charging, and has an upper temperature limit T4a and a lower temperature limit T4b. Like the above ranges, the specific numerical values of the upper temperature limit and the lower temperature limit can be set appropriately. In addition, in this description, fast charging refers to charging that is performed at a higher speed compared to charging that is provided in the third temperature range. As an example, fast charging can be performed at a higher rate, which

- 12 041655 is two or more times higher than for charging. As an example, the fast charging speed may be 2C and the charging speed may be 1C.

Although not limited, for example, the upper temperature limit T4a may be set based on the same control parameter as the upper temperature limit T1a of the first temperature range. As an example, the upper temperature limit T4a is 60°C. In addition, as another example, the upper temperature limit T4a may be different from the upper temperature limit T1a. For example, in view of the temperature at which degradation of the power supply is promoted if charging is performed at a high speed, the lower temperature limit T4b may be set to a value higher than or equal to the corresponding temperature. The temperature T4b is, for example, 10°C. Because the fourth temperature range, which is defined by the upper temperature limit T4a and the lower temperature limit T4b, is a range in which the structures and/or compositions of the electrodes and the electrolytic solution of the power supply do not change and degradation of the power supply is not promoted. Therefore, it is possible to improve the reliability of the power supply with respect to charging, and extend the service life of the power supply.

The first to fourth temperature ranges have been described above, and the individual temperature ranges may have the following relationships.

(1) With respect to the first temperature range, its lower temperature limit T1b may be set to a value higher than the lower temperature limit T2b of the second temperature range. In addition, the lower temperature limit T1b may be set to a value higher than the lower temperature limits T2b to T4b of the second to fourth temperature ranges. The upper temperature limit T1a can be set to a value the same or substantially the same as the upper temperature limits T2a-T4a of other temperature ranges (which means that the numerical value of the upper temperature limit T1a varies between the values obtained by increasing or decreasing each value for compared object by 10%, and it is the same for this description). Alternatively, the upper temperature limit T1a may be equal to or higher than the upper temperature limit T2a of the second temperature range, or may be equal to or higher than the upper temperature limit T3a of the third temperature range, or may be equal to or higher than the upper temperature limit temperature limit T4a of the fourth temperature range.

(2) With respect to the second temperature range, the second temperature range may be set to be wider than the first temperature range and include the first temperature range (the case where one range is referred to as including another range includes the case where their upper the temperature limits are the same, or their lower temperature limits are the same, and this is valid for this description). In one embodiment of the present invention, the second temperature range may be set to be wider than the temperature ranges where other functions are possible (in the example of FIG. 12, for example, the first, third and fourth temperature ranges).

(3) With respect to the third temperature range, the third temperature range may be set to be wider than the first temperature range and include the first temperature range. In addition, the third temperature range may be set to be wider than the fourth temperature range and include the fourth temperature range.

(4) With respect to the fourth temperature range, the fourth temperature range may be set to be wider than the first temperature range and include the first temperature range. In one embodiment of the present invention, the first temperature range may be configured to be narrower than the temperature ranges in which other functions are provided (in the example of FIG. 12, for example, temperature ranges two through four).

Incidentally, generally, SOH diagnosis is performed based on the electrical parameter of the power supply at the time of discharging or during charging. As examples of an electrical parameter, the value of the current that the power supply outputs during discharge, the value of the voltage that the power supply outputs during discharge, the value of the current with which the power supply is charged during charging, the value of the voltage that is applied to the power supply during charging, etc. If the first temperature range is set as described above, each power supply temperature belonging to the first temperature range necessarily belongs to the second to fourth temperature ranges. Therefore, in a state where SOH diagnosis is enabled, at least one of discharging, charging, and fast charging at the same time is acceptable. Therefore, it is possible to obtain the electrical parameter required for SOH diagnostics in any mode from discharge, charging, and fast charging. Therefore, in a state where SOH diagnosis is enabled, SOH diagnosis can be performed without any problem. Therefore, the efficiency of SOH diagnostics is increased.

In addition, the electrical parameter used in SOH diagnostics is affected not only

- 13 041655 power supply degradation, but also power supply temperature. Therefore, in order to ensure the accuracy of SOH diagnostics, it is preferable to perform SOH diagnostics only when the temperature of the power supply is in a temperature range in which the temperature of the power supply has little effect on the electrical parameter that is used in SOH diagnostics.

As a result of extensive research by the present inventors for this application, it has become apparent that the appropriate temperature range for SOH diagnostics is narrower than the temperature range in which charging and discharging is possible without causing degradation of the power supply. In addition, it has become apparent that, in particular, under low temperature conditions, the influence that the temperature of the power supply has on the electrical parameter that is used in SOH diagnostics becomes predominant.

If the first temperature range is set as described above, the power supply temperatures belonging to the second to fourth temperature ranges do not necessarily belong to the first temperature range. In other words, this means that there is a temperature range in which, even if charging and discharging is provided, there are no conditions for SOH diagnostics. If individual temperature ranges are configured as described above, SOH diagnostics are only performed in the correct temperature range. Therefore, it is possible to improve the accuracy of SOH diagnostics. In particular, in the temperature range below 15°C, although the power supply can be charged and discharged to prevent degradation of the power supply, SOH diagnosis is not allowed to ensure the accuracy of SOH diagnosis. This is preferred as an embodiment of the present invention.

In addition, with respect to charging and discharging, in general, the impact of the discharge on the degradation of the power supply is negligible. The difference in influence on power supply degradation between charging and discharging becomes more pronounced as the temperature of the power supply decreases. If the second temperature range is set as described above, the opportunity for favorable charging and discharging can be maximized while preventing degradation of the power supply.

In addition, with respect to charging and fast charging, in general, the impact of charging on the degradation of the power supply is small. The difference in the impact on power supply degradation between charging and fast charging becomes more pronounced as the temperature of the power supply decreases. If at least one of the third temperature range and the fourth temperature range is set as described above, it is possible to maximize the possibility of favorable charging and fast charging while preventing degradation of the power supply.

Similarly, if the first temperature range is properly set, the accuracy of the SOH diagnosis is improved and the power supply 10 can be used for a longer time while still ensuring reliability. Therefore, the effect of saving energy is achieved.

In addition, if the individual temperature ranges are properly set, degradation of the power supply 10 is suppressed. Therefore, the service life of the power supply 10 is extended and an energy saving effect is achieved.

(a4) Degradation diagnostic function.

Fig. 13 is a flowchart illustrating an example of degradation diagnosis or failure diagnosis. In step S201, first, the power supply voltage value V _batt is measured. The value V _{batt of} the power supply voltage can be obtained by the voltage sensor. However, it should be noted that this flowchart is executed by the control circuit 50 in response to the detection of the start of inhalation (see FIG. 3).

As one example, the power supply voltage value _Vbatt may be an open circuit voltage (OCV), which can be obtained without electrical connection between the power supply 10 and the load 125. As another example, the power supply voltage value Vbatt may be a closed circuit voltage (CCV ) that can be obtained by electrically connecting the power supply 10 and the load 125. As another example, both the open circuit voltage and the closed circuit voltage can be used as the power supply voltage value Vbatt. In some cases, to eliminate the effect of voltage drop due to electrical connection of the load and the change in internal resistance or temperature due to discharge, it is preferable to use an open circuit voltage (OCV) rather than a closed circuit voltage (CCV). From the closed circuit voltage (CCV), the open circuit voltage (OCV) can be estimated.

More specifically, the acquisition time of the power supply voltage value Vbatt may be a time period when a discharge is performed to supply electric power to a load, or may be a time period just before the discharge, or may be a time period immediately after the discharge. The time just before the discharge may be, for example, the period before the start of the discharge, for example, the period from 5 to 10 ms before the discharge, until the start time of the discharge. The point in time immediately after the discharge may be, for example, the period from the end of the discharge until a time elapses, for example, from 5 to 10 ms.

Furthermore, in the sequence of FIG. 13 get V _batt value of source voltage

- 14 041655 power is not supplied during charging; however, in the case where it is required to acquire the power supply voltage value V _batt during the charging process, the power supply voltage value V _batt can be similarly obtained not only during the charging process, but also immediately before charging or at a point in time immediately after charging. The point in time immediately before charging may be, for example, a period from the time before the start of charging, for example, from 5 to 10 ms before the start of charging. The point in time immediately after charging may be, for example, the period from the end of charging until a time elapses, for example, from 5 to 10 ms.

Then, in step S202, it is determined whether the acquired power supply voltage value V _batt is equal to or less than the upper limit value of the predetermined voltage range or not. In the case where the power supply voltage value is higher than the upper limit value, the process is terminated without evaluation or detection of degradation and failure of the power supply. As another example, in the case where the power supply voltage value is higher than the upper limit value, the process may return to step S201.

Meanwhile, in the case where the power supply voltage value V _batt is equal to or less than the predetermined upper limit value, it is then determined in step S203 whether the power supply voltage value obtained during the previous inhalation is equal to or less than the value upper limit of the predefined voltage range, or not. In the case where the power supply voltage value V _before obtained during the previous inhalation is larger than the upper limit value of the predetermined voltage range, it is determined that the power supply voltage value has become equal to or less than the upper limit value of the predetermined voltage range, for the first time during the subsequent act of inspiration. Then, in step S204, the accumulative counter (I _Co ) that counts the sum value of the values related to the load operation parameter 125 is set to 0. The case where the result of step S203 is No means that in the period from the previous inhalation to the current inhalation, the power supply was charged.

In the case that the result of step S203 is YES or after the accumulative counter is set in step S204, then it is determined in step S205 whether the power supply voltage value Vbatt is less than the lower limit value of the predetermined voltage range. In the case where the power supply voltage value V _batt is equal to or greater than the lower limit value, in step S206, the sum of the values related to the load operation parameter 125 is output as ICo=ICo+Co. Co represents a value related to the load work parameter during the current act of inhalation. ICo represents the total value of the quantities related to the load operating parameter. Thereafter, the process is terminated without evaluation or detection of degradation or failure of the power supply.

In the case where it is determined in step S205 that the power supply voltage value Vbatt is smaller than the lower limit value, it is determined in step S207 whether the value related to the load operation parameter operating while the power supply voltage value _Vbatt was in a predetermined voltage range, i.e. the total value of ICo is greater than a predetermined threshold value. In the case where the total value of ICo is larger than the predetermined threshold value, it is determined that the power supply is normal and the diagnostic function process ends.

In the case where the total ICo value is equal to or less than a predetermined threshold value, degradation or failure of the power supply 10 is determined (step S208), and the abnormal condition is notified to the user by the light emitting unit 40 (step S209). If a degradation or failure of the power supply is determined, then a control action may be taken as necessary to make it impossible to supply power to the load 125.

The degradation diagnostic function is not limited to the above embodiment, and various known methods can be used. As one example, in the case of discharging the power supply 10 in the constant current supply mode or in the constant voltage supply mode, if the voltage of the power supply decreases significantly, the degradation of the power supply 10 can be determined. In addition, as another example, in the case of charging the power supply 10, if the voltage of the power supply rises prematurely, degradation of the power supply 10 can be determined. In addition, as another example, in the case of charging the power supply 10, if the voltage of the power supply decreases, a malfunction of the power supply 10 can be determined. In addition, as another example, in the case of charging or discharging the power supply 10, if the temperature rise rate of the power supply 10 is high, degradation of the power supply 10 can be determined. In addition, as another example, if any one of the total charge degree, the total charge time, the total discharge degree, and the total discharge time of the power supply 10 exceeds a threshold value, degradation of the power supply 10 can be determined.

- 15 041655 (a5) An example of operation control based on the temperature of the power supply.

An operation example of the inhalable component generating device 100 according to the present embodiment will now be described with reference to the block diagram in FIG. 14. This block diagram shows an example of operation control based on the temperature T _batt of the power supply.

First, in step S301, the inhalable component generating device 100 determines whether an act of inhalation has been detected and whether the switch 30 is turned on (see FIG. 1). As described above, inhalation detection can be performed based on the output of the inhalation sensor 20 .

In the case where the result of step S301 is No, the inhalable component generating device performs step S311 and subsequent steps. This will be described below. Meanwhile, in the case where the result of step S301 is YES, a request to generate an aerosol for the user is detected. Then, in step S302, the respirable component generating device calculates the temperature T _bat t of the power supply. As described above, the calculation of the power supply temperature T _batt may be a process of detecting the temperature of the power supply 10 by a temperature sensor and obtaining the temperature of the power supply based on the output of the temperature sensor, or may be a process of estimating the temperature of the power supply based on a value related to temperature power supply, or may be a process of detecting the temperature of an object other than the power supply by a temperature sensor and estimating the temperature of the power supply based on the output of the temperature sensor. The calculation of the power supply temperature is not limited to a particular means, and any means may be used as long as it can obtain or estimate the current temperature of the power supply.

After step S302, in step S303, the respirable component generating device 100 determines whether the power supply temperature Tbatt is in the second temperature range. As one example, the inhalable component generating device determines if the temperature of the power supply is in the range of -10°C<T _batt <60°C.

In the case where T _batt is not in the range (the case where the result of step S302 is No), the inhalable component generating device executes the sequence for the case where the temperature is abnormal (steps S381 and S382). This will be described below.

Meanwhile, in the case where T _batt is in the range (the case where the result of step S302 is YES), then in step S304, the inhalable component generating device 100 performs aerosol generation. The aerosol is generated by performing power supply to the load 125. Power supply control is not limited to a specific control, and a variety of control means can be used, including the above method and methods known in the art.

Then, in step S305, the respirable component generating device 100 determines whether the power supply temperature Tbatt is in the first temperature range. As an example, the inhalable component generating device determines if the temperature of the power supply is in the range of 15°C<T _batt <60°C.

In the case where the power supply temperature Tbatt is in the above temperature range (the case where the result of step S305 is YES), in steps S306 and S307, the respirable component generating apparatus 100 performs SOH diagnosis, and so on. More specifically, the inhalable component generating device performs SOH diagnosis in step S306, and determines whether SOH is equal to or greater than a predetermined threshold value or not in step S307. however, the degradation diagnosis is also not limited to a particular control, and a variety of control means can be used, including the above-mentioned method and methods known in the art.

In the case where SOH is equal to or greater than the predetermined threshold value (the case where the result of step S307 is YES), since it is determined that the power supply 10 is not degraded, then steps S308 and S309 described below are performed.

Meanwhile, in the case where the SOH is less than the predetermined threshold value (the case where the result of step S307 is No), since it is determined that the power supply 10 is degraded, the respirable component generating device executes the sequence for the case where the battery has been worn out. (Steps S391-S394, see FIG. 16). This will be described below.

In the case where it is determined in step S305 that the power supply temperature T _batt is not in the above temperature range, steps S306 and S307 are skipped so that SOH diagnosis is not performed. In other words, in the present embodiment, SOH diagnosis is only performed when the power supply temperature T _batt is in the first temperature range. Although not limited, the inhalable component generating device may be configured such that, in the case where the temperature of the power source is not in the range, a predetermined alert (such as light emission by the light emitting unit 40) is issued to inform that the diagnosis cannot be performed.

- 16 041655

Again with reference to FIG. 14, then, in step S308, the inhalable component generating device 100 determines whether the act of inhalation has been completed, whether the switch has been turned off, and whether the predetermined time has elapsed. In the case where the result of step S308 is No (ie, the case where the act of inhalation has not been completed and the switch is turned on and the predetermined time has not elapsed), the inhalable component generating device returns to step S305. Meanwhile, in the case where the result of step S308 is YES, in step S309, the inhalable component generating device performs aerosol generation. As another example, in the case where the result of step S308 is No, the inhalable component generating device may return to step S306 but not to step S305. In this case, as the process speeds up, you can increase the number of SOH diagnostic cycles.

According to the series of steps described above, power supply is performed only when the power supply temperature Tbatt is in the temperature range where discharge is possible, and degradation diagnostics is performed only when the power supply temperature Tbatt is in the temperature range where degradation diagnostics is possible. If SOH diagnosis is allowed only in a part of the temperature range in which the power supply 10 is allowed to discharge, then SOH diagnosis is only performed in the temperature range in which the influence exerted by the temperature of the power supply is small. Therefore, it is possible to improve the accuracy of SOH diagnostics.

Fast charging.

Step S311 and subsequent steps that are performed in the case where the result of step S301 is No will now be described. First, in step S311, the inhalable component generating device 100 detects whether the charger has been suitable. In the case where the suitability of the charger is not detected, the inhalable component generating device returns to step S301.

In the case where the suitability of the charger has been detected, in step S312, the respirable component generating device 100 obtains or estimates the temperature T _batt of the power supply. Obtaining or estimating the power supply temperature Tbatt may be performed in the same manner as in step S302.

Then, in step S313, the respirable component generating device 100 determines whether the power supply temperature T _batt is in the fourth temperature range. As an example, the inhalable component generating device determines if the temperature of the power supply is in the range of 10°C<T _batt <60°C.

In the case where the power supply temperature Tbatt is in the range (the case where the result of step S313 is YES), then in step S314, the respirable component generating device 100 performs fast charging. In addition, the charging speed for fast charging in CC mode can be 2C.

Meanwhile, in the case where the power supply temperature Tbatt is not in the range (the case where the result of step S313 is No), the respirable component generating device 100 executes the sequence for normal charging but not fast charging (sequence from S321 to be described later). ).

If fast charging starts in step S314, then in step S315, the respirable component generating device 100 determines whether the power supply temperature T _batt is in the first temperature range (for example, 15°C<T _batt <60°C).

In the case where the power supply temperature T _batt is in the above temperature range (the case where the result of STEP S313 is YES), then in steps S316 and S317, the respirable component generating device 100 performs SOH diagnosis, etc. More specifically, the inhalable component generating device performs SOH diagnosis in step S316, and determines whether SOH is equal to or greater than a predetermined threshold value or not in step S317. In the case where Tbatt is in the first range, steps S316 and S317 are skipped so that SOH diagnosis is not performed.

In the case where SOH is equal to or greater than the predetermined threshold value (the case where the result of step S317 is YES), since it is determined that the power supply 10 is not degraded, then steps S318 and S319 described below are performed.

Meanwhile, in the case where the SOH is less than the predetermined threshold value (the case where the result of step S317 is No), since it is determined that the power supply 10 is degraded, the respirable component generating device executes the sequence for the case where the battery has been worn (Steps S391-S394, see FIG. 16).

Then, in step S318, the inhalable component generating device 100 performs charging completion indication detection. In the case where the result of step S318 is No (ie, the situation where charging has not been completed), the inhalable component generating device returns to step S315. In the case where the result of step S318 is Yes, in step S319 generating inhaled

- 17 041655 component device is completing charging. As another example, in the case where the result of step S318 is No, the inhalable component generating device may return to step

S316 but not to S315. In this case, as the process speeds up, you can increase the number of cycles

SOH diagnostics.

As described above, if SOH diagnosis is allowed only in a part of the temperature range in which fast charging of the power supply 10 is allowed, then SOH diagnosis is performed only in a temperature range in which the influence exerted by the temperature of the power supply is small. Therefore, it is possible to improve the accuracy of SOH diagnostics.

Normal charging.

In the case where it is determined in the above step S313 that the power supply temperature T _batt is not in the fourth temperature range (for example, 10°C<T _batt <60°C), in step S321, the respirable component generating device 100 determines whether the temperature is power supply in the range of 0°C<T _batt <10°C (the respirable component generating device determines whether the temperature of the power supply is in the third temperature range based on the combination of the content of step S313 and the content of step S321). In the case where Tbatt is not in the range (the situation where the result of step S321 is No), the inhalable component generating device executes the sequence for the case where the temperature is abnormal (steps S381 and S382, described in detail below). In the case where the power supply temperature T _batt is in the range (a situation where the result of step S321 is YES), then in step S322, the respirable component generating device 100 performs normal charging. In addition, the charging speed for normal charging in CC mode may be 1C.

If normal charging starts in step S322, then in step S323, the respirable component generating device 100 determines whether the power supply temperature T _batt is in the first temperature range (for example, 15°C<T _batt <60°C).

In the case where the power supply temperature Tbatt is in the above-mentioned range (a situation where the result of step S323 is YES), in steps S324 and S325, the inhalable component generating device 100 performs SOH diagnosis, and so on. More specifically, the inhalable component generating device performs SOH diagnosis in step S324, and determines whether SOH is equal to or greater than a predetermined threshold value or not in step S325. In the case where the power supply temperature Tbatt is not in the first range (a situation where the result of step S323 is No), steps S324 and S325 are skipped and SOH diagnosis is not performed.

In the case where SOH is equal to or greater than the predetermined threshold value (the case where the result of step S325 is YES), since it is determined that the power supply 10 is not degraded, then steps S326 and S327 described below are performed.

Meanwhile, in the case where the SOH is less than the predetermined threshold value (the case where the result of step S325 is No), since it is determined that the power supply 10 is degraded, the respirable component generating device executes the sequence for the case where the battery has been worn out. (Steps S391-S394, see FIG. 16).

Then, in step S326, the inhalable component generating device 100 performs charging completion indication detection. In the case where the result of step S326 is No (ie, the situation where charging has not been completed), the inhalable component generating device returns to step S323. As another example, in the case where the result of step S326 is No, the inhalable component generating device may return to step S324 but not to step S323. In this case, as the process speeds up, you can increase the number of SOH diagnostic cycles. In the case where the result of step S326 is YES, in step S327, the inhalant component generating device completes charging.

As described above, if SOH diagnosis is allowed only in a part of the temperature range in which charging of the power supply 10 is allowed, then SOH diagnosis is only performed in the temperature range in which the influence exerted by the temperature of the power supply is small. Therefore, it is possible to improve the accuracy of SOH diagnostics.

Procedure for the case where the temperature is abnormal.

The sequence of operations for the case where the temperature is abnormal may be, for example, the sequence of operations as shown in FIG. 15, in which the respirable component generating device 100 can first detect a temperature abnormality in step S381, and then perform the charging stop or discharge stop operation in step S382. In addition, in a condition such as that a predetermined time must elapse or that the temperature of the power supply must return to the normal range, charging or discharging stopped in step S382 may be allowed again.

The sequence of actions for the case where the power supply has been degraded.

The sequence of operations for the case where the power supply has been degraded may be, for example, the sequence of operations as shown in FIG. 16. In this example, if the respirable component generating device 100 first detects battery degradation in step S391, then, in step S392, the respirable component generating device performs a charging stop or discharge stop operation.

Then, in step S393, the inhalable component generating device stores in the memory the power supply degradation detection time and the condition in which the degradation was detected. Then, in step S394, the inhalable component generating device stops the series of operations. However, in a condition such as replacing the power supply 10, the series of operations stopped in step S394 may be allowed again.

Comparing the sequence of operations for the case where the temperature is abnormal and the sequence of operations for the case where the power supply has been degraded, it can be said that the condition of allowing again charging or discharging stopped in step S382 is more difficult to satisfy than the condition of allowing charging or discharging again. discharge stopped in step S394.

Comparing the process for the case where the temperature is abnormal and the process for the case where the power supply has been degraded, charging or discharging stopped in step S382 is enabled again if the inspiratory component generating device is left as it is. Meanwhile, it can be said that the series of operations stopped in step S394 can be allowed again if the inhalable component generating device 100 is left as it is.

As described above, if the first temperature range is properly set, the accuracy of the SOH diagnosis is improved, and the power supply 10 can be used for a long time while ensuring reliability. Therefore, the effect of saving energy is achieved.

In addition, if the individual temperature ranges are properly set, degradation of the power supply 10 is prevented. Therefore, the service life of the power supply 10 is extended, and an energy saving effect is achieved.

(b1) Detecting the connection of a charger or others.

With regard to charging control for detecting the attachment of a charger and the like. A variety of methods may be appropriately used, and examples thereof will be briefly described below. The charge control unit 250 (see FIG. 8) has a function of detecting an electrical connection between the electric circuit of the charger 200 and the electric circuit of the power supply 110. The method for detecting an electrical connection between them is not particularly limited, and various methods can be applied. For example, the connection of the power supply 110 can be detected by detecting a voltage difference between a pair of electrical terminals 221t.

In one embodiment, it is preferred that when charger 200 and power supply 110 are connected, it should be possible to determine at least one of the type of power supply 110 to be connected and the type of power supply 10. To do this, for example, based on a value related to the value of the electrical resistance of the first resistor 150 (see Fig. 8), at least one of the type of power supply unit 110 to be connected and the type of power supply 10 located in the unit 110 can be determined. nutrition. In other words, the first resistors 150 having different electrical resistance values can be placed in different types of power supplies 110, respectively, so that the type of power supply 110 to be connected or power supply 10 can be determined. In addition, the value related to the electrical resistance value of the first resistor may be the electrical resistance value of the first resistor 150, or may represent the voltage drop across the first resistor 150 (potential difference), or may be the value of the current passing through the first resistor 150 .

(b2) Charging control.

The charging control will now be described. Next, an example will be described in which operations are controlled by the charging control unit 250 of the charger 200; however, as described above, in the configuration in which the inhalable component generating device 100 has a function related to charging, control can be performed by the control circuit 50 housed in the device. Fig. 17 is a flowchart illustrating an example of a control method which is executed by the charge control unit 250. First, in step S401, the charging control unit detects the connection of the power supply unit 110 with the charger 200.

After the connection is detected (in the case where the result of step S401 is YES), then, in step S402, the charging control unit obtains a value related to the electric resistance value of the first resistor 150. The charging control unit may obtain values that are measurement results repeatedly. as the measurement progresses and obtain a final value using a moving average, an unweighted average, or a weighted average of them based on them.

Then, in step S403, the charge control unit determines whether the predetermined control needs to be changed, or whether everything is in a proper state to perform the predetermined control, based on the value related to the electrical resistance value.

- 19 041655

For example, in the case where the value related to the electrical resistance value is outside the predetermined range or in the case where the predetermined condition is not satisfied, the charging control unit may not charge the power supply 10 . Meanwhile, in the case where the value relating to the electrical resistance value is in a predetermined range, or in the case where the predetermined condition is satisfied, the charging control unit may execute charging. In other words, the aforementioned change to the predetermined control includes making such a change so as not to perform the charging process. In this situation, in the case where it is determined that the charging control unit is not proper or the power supply unit is not genuine because the charging current is not transmitted, the occurrence of a malfunction can be prevented.

In addition, along with this, changing the predetermined control may be at least one of changing the charging current value, changing the charging speed, and changing the charging duration. As a specific example, in one embodiment, it is preferable to determine the type of the power supply 110 or the power supply 10 based on a value related to the electrical resistance value, so that the amount of charging current can be changed according to the specific type. For example, in this case, it becomes possible to perform charging control on the power source 10 corresponding to fast charging with a charging current at a high rate equal to or greater than 2C, or to perform normal charging control on the power source 10 that does not correspond to fast charging, with a charging current at low speed equal to or less than 1C.

Then, in step S404, the charge control unit obtains the power supply voltage value V^tt. Then, in step S405, the charging control unit determines whether the received power supply voltage value V _batt is equal to or greater than the predetermined switching voltage or not. The switching voltage is a threshold value for separating the constant current charging section (CC charging) and the constant voltage charging section (CV charging), and although the specific numerical value of the switching voltage is not particularly limited, it may be, for example, in the range between 4.0 and 4.1 V.

In the case where the power supply voltage value V _batt is smaller than the switching voltage (the case where the result of step S405 is No), constant current charging (CC charging) is performed (step S406). In the case where the power supply voltage value V _batt is equal to or greater than the switching voltage (the case where the result of step S405 is YES), constant voltage charging (CV charging) is performed (step S407). In addition, in the constant voltage charging mode, as the charging process progresses, the power supply voltage increases and the difference between the power supply voltage and the charging voltage decreases, so that the charging current decreases.

In the case where charging has been started in the constant voltage charging mode, in step S408, the charging control unit determines whether the charging current is equal to or less than the predetermined charging end current. In addition, the charging current can be obtained by the current sensor 230 provided in the charger 200. In the case where the charging current is higher than the predetermined charging end current (the case where the result of step S408 is No), the charging control unit keeps charging in constant voltage charging mode. In the case where the charging current is equal to or less than the predetermined charging end current (the case where the result of step S408 is YES), the charge control unit determines that the power supply 10 is fully charged and stops charging (step S409).

In addition, of course, as a condition for stopping charging, in addition to the charging current, the time from the start of charging in the constant current charging mode or the start of charging in the constant voltage charging mode, the value of the voltage of the power supply, the value of the temperature of the power supply, etc. .d.

Although the embodiment of the present invention has been described above with reference to the drawings, the present invention can be suitably modified without departing from the spirit of the present invention.

For example, in the block diagram of FIG. 14 in principle, assuming a process that is performed by a single control circuit, in step S313, it is first determined whether fast charging is possible (fourth temperature range), and in the case where fast charging is not possible, then in step S321, it is determined whether normal charging is possible (third temperature range). range). However, the charger 200 can be configured to determine whether the temperature of the power supply is in the fourth temperature range, and perform fast charging in the case where the determination result is Yes, and perform normal charging in the case where the determination result is No.

Detection of low residual charge level using closed circuit voltage.

In FIG. 18A simply shows the connection between the power supply 10 and the load 125. The voltage value of the power supply is measured between both ends of the power supply 10, for example, between the high potential side of the power supply 10 (having the same potential as the node

156 in FIG. 6) and ground (the potential of node 154 in FIG. 4 becomes essentially the same as zero potential), a voltage sensor 62, and this information is transmitted to the control circuit 50. The supply of electricity from the power source 10 to the load 125 is controlled by turning on and off the first switch 172.

In a state where the first switch 172 is off, no power is supplied to the load 125. The power supply voltage that is measured by the voltage sensor 62 at this time is called the open circuit voltage OCV. In a state where the first switch 172 is turned on, power is supplied to the load 125. The power supply voltage that is measured by the voltage sensor 62 at this time is called the closed circuit CCV voltage. With an ideal power supply, OCV and CCV are the same; however, in actual power supply, such as from a battery, due to internal resistance and capacitance, the closed circuit CCV voltage is lower than the open circuit voltage OCV. The closed circuit voltage CCV is lower than the open circuit voltage OCV by the amount of loss due to internal resistance and capacitance.

Fig. 18B is a view illustrating an equivalent model of a power supply circuit. As shown in FIG. 18V, the power supply (battery) 10 can be considered as a model made by connecting E _Batt (ideal power supply) and a resistor-capacitor parallel RC circuit) composed of an internal resistance whose resistance value is represented as Rimp, a reactance whose resistance value is denoted as REDL, and an electric double-layer capacitor, whose capacitance value is shown as CEDL, in series connection. The open circuit voltage OCV of the power supply 10 becomes E _Batt , and the closed circuit voltage CCV (Vmeas) of the power supply 10 can be described by the following expression 1.

Expression 1.

Hums ¹ 1 )

In Expression 1, ΔE _imp represents the loss (voltage drop) in the internal resistance, and ΔE _EDL represents the loss (voltage drop) in the parallel RC circuit of FIG. 18V.

The discharge current of the power supply 10 first flows into the C _EDL and gradually flows into the REDL as the charging process of the C _EDL proceeds. Based on this phenomenon, expression 1 can be rewritten into the following expression 2.

Expression 2.

” Kt) ' ” F) ' Cues “ And ” ............................. y;...... ............ ¹ 2 I

I(t) represents the discharge current of the power supply 10, and can be described by the following expression 3.

Expression 3.

In expression 3, RHTR represents the electrical resistance value of the load 125.

From expression 3, the discharge current value I(0) of the power supply 10 at the time (t=0) immediately after the switch 172 is turned on can be described as the following expression 4.

Expression 4.

K0) \u003d „..................... (4) "imp + "NTJ

From expressions 2 and 4, the voltage V _meas (0) of the power supply 10 at the time (t=0) immediately after the switch 172 is turned on can be described as the following expression 5.

Expression 5.

= --C5J "iw ⁺ %"

Meanwhile, from Expression 3, the value of the discharge current of the power supply 10 at the point in time at which t is significantly higher than the product of REDL and CEDL can be described as the following Expression 6.

Expression 6.

h'm /(f) = ---------- (6 ) ' - fro, +

From expressions 2 and 6, the voltage V _meas (t) of the power supply 10 at the time at which t is significantly higher than the product of REDL and CEDL can be described as the following expression 7.

- 21 041655

Expression 7.

^Bett (7)

By the way, REDL and C _EDL are very small quantities. Therefore, it should be noted that after the switch 172 is turned on at a relatively early stage, the discharge current value of the power supply 10 and the closed circuit voltage V _meas (t) of the power supply 10 converge to the values of expression 6 and 7, respectively.

As described above, the closed circuit voltage CCV (V _meas ) of the power supply 10 is obtained by subtracting the voltage drop due to the internal resistance R _imp (which is not very time dependent) and the voltage drop due to the parallel RC circuit (which is highly time dependent) , from the open circuit voltage OCV (E _Batt ). t represents the power supply time, and R _EDL -C _EDL represents the time constant τ (also called the relaxation time). The variation of the open circuit OCV voltage with time is approximately the same as the graph in FIG. 19.

Fig. 20 is a view illustrating the relationship between inhalation detection and power supply control. As shown in FIG. 20, by way of example, the respirable component generating apparatus of the present invention is configured to first perform detection of the open circuit voltage OCV at time t1, and then perform detection of the closed circuit voltage CCV at time t2. In a closed circuit CCV voltage detection situation, a pulsed voltage is applied to detect the voltage, and it is preferable that its application time be set to such a time that no aerosol is generated and no excessive discharge occurs. More specifically, as an example, the application time may be 5 ms or less, or more preferably 1 ms or less. In addition, the voltage pulse application time for voltage detection may be shorter than the minimum time that is acceptable in PWM control, which is executed from time t3.

Then, at time t3, the switch-on duration is set and the power supply starts. Although the end of the power supply can be performed at any time, in this example is completed at time t4 in response to the detection of the end of inhalation. In addition, the supply of electricity can be ended, provided that a predetermined time must elapse after the start of the supply of electricity. Alternatively, the power supply may be terminated, provided that any circumstance of the end of inhalation and the expiration of a predetermined time is to be detected.

In addition, with regard to obtaining the open circuit voltage OCV and/or the closed circuit voltage CCV, the measurement can be taken two or more times, not only once. More specifically, since the closed circuit CCV voltage is affected by the internal resistance and the electrical double layer, the closed circuit voltage value is more likely to be true compared to the open circuit voltage OCV. Therefore, it is preferable to measure the closed circuit CCV voltage two or more times. Moreover, since the value of the open circuit OCV voltage also varies slightly, the measurement of the open circuit OCV voltage can be performed two or more times.

In case of performing both the open circuit OCV voltage measurement and the closed circuit CCV voltage measurement two or more times, the measurement can be taken the same number of times. Alternatively, the number of closed circuit CCV voltage measurement cycles may be large. As a specific example, when the number of times of measurement of the closed circuit CCV voltage is N (N represents an integer of 1 or more), and the number of times of measurement of the open circuit voltage OCV is M (M represents an integer of 1 or more), the voltage measurement can be performed so that N is larger than M. If the voltage measurement is performed as described above, it is possible to obtain proper values in a short time while considering the amount of variation in the value of each of the open circuit voltage OCV and the closed circuit voltage CCV.

The method of obtaining one voltage value (characteristic value) from multiple measured values is not limited to a specific method, and various methods can be applied. For example, methods using mean, median, or mode can be used, and an execution method such as correcting for a specific value.

Moreover, as another example, in the case where it is necessary to apply an impulse voltage to any one load, the measurement of the closed circuit CCV voltage can be taken once. Meanwhile, in the case where it is not necessary to apply the impulse voltage, the measurement of the closed circuit CCV voltage can be taken two or more times. In the present embodiment, it should be noted that the number of times of measurement of the closed circuit CCV voltage is less than the number of times of measurement of the open circuit voltage OCV.

Voltage value measurement can be performed in the following modes.

(i) With respect to the measurement of closed circuit voltage, after the power supply 10 and on

- 22 041655 load 125 has formed a closed circuit state, if the relaxation time (time constant τ) passes, the voltage value is measured (for example, see phase Ph1 in Fig. 19). As described above, immediately after the closed circuit has been formed, when the current flows to the equivalent circuit side C _EDL in FIG. 18V and thus charging C _EDL flows, the current gradually flows towards R _EDL . The voltage value that is measured changes from the value according to expression 5 to the value according to expression 7 as time passes. In other words, immediately after the formation of the closed circuit, the voltage value that is measured gradually decreases from the value according to expression 5 and reduces to the value according to expression 7. If the measurement is performed after the relaxation time has elapsed as described above, it becomes possible to obtain the closed circuit voltage value in a stable condition. In order to obtain a more accurate value, the measurement can be carried out after a time of 1.5τ, after a time of 2τ, or after a time of 3τ.

In addition, the relaxation time τ may be obtained from the specification of the power supply 10, or may be experimentally obtained using an AC impedance method (Cole-Cole diagram method), or the like.

In addition, (ii) in the case of measuring the voltage value two or more times, it is preferable to set the detection time to be longer than the relaxation time (time constant τ) (for example, see phase Ph2 in Fig. 19). If the measurement is performed for a longer time than the relaxation time (time constant τ), the voltage value stabilized over the course of the relaxation time is obtained. Therefore, it is possible to obtain the closed circuit voltage value based on the stable value. In addition, each of the options (i) and (ii) may be performed separately or may be performed in combination.

Controlling the supply to the load according to the remaining battery level.

Now, the relationship between the remaining battery level and the load supply control will be described with reference to FIG. 21 and 22A-22C. Fig. 21 is a curve illustrating the discharge characteristics of a secondary battery usable as a power source, and the vertical axis represents the voltage value of the power source, and the horizontal axis represents the hours of use (which can be regarded as a discharge rate). In addition, the power supply voltage value may be any one of the open circuit voltage OCV and the closed circuit voltage CCV. In particular, FIG. 21, in the case where the power supply voltage value is the open circuit voltage OCV, can also be considered as representing the state-of-charge characteristic with respect to the open circuit voltage (SOCOCV characteristic). Next, the SOC-OCV characteristic will be described as an example. As described above, for example, in the case of a secondary battery such as a lithium-ion battery, the SOC-OCV curve includes an initial section (when the remaining charge level is high) in which the power supply voltage value decreases relatively quickly as the battery is used, a plateau section. (when the remaining charge level is medium), in which the variation of the power supply voltage value becomes weak, and the end section (when the remaining charge level is low), in which the power supply voltage value decreases relatively quickly as the battery is used. In the example according to FIG. 21, symbols P1, P2, and P3 are shown in the start section, the plateau section, and the end section, respectively. In addition, P2 represents a point that is in the second half of the plateau section and very close to the middle of the plateau section (i.e., P2 has a relatively low power supply voltage value in the plateau section).

The plateau section means a section in which the variation of the power supply voltage value according to the residual capacity is small. Since the degree of variation even depends on the composition of the battery and the like, there is no need to be limited to a specific value. For example, a section in which the voltage value of the power supply is 0.01 to 0.005 (V/%) (for example, the variation of the voltage value in the case where the state of charge (SOC) varies by 1% is 0.01 to 0.005), or less, can be defined as a section of the plateau. In addition, a section at which by plus or minus 15 to 30% relative to the point at which the variation of the power supply voltage value according to the SOC variation is minimal can be defined as a plateau section. In addition, a section in which the power supply voltage value is substantially constant regardless of SOC variation can be defined as a plateau section.

According to the load application control described herein, in one embodiment, the closed circuit CCV voltage is measured, and the value or waveform of the voltage applied to the load is corrected based on the closed circuit voltage. For example, at least one of the pulse width, duty cycle, mean value, r.m.s. value, voltage value and application time of the voltage applied to the load, and the maximum application time value can be adjusted.

It has already been described with reference to FIG. 10 that in the case of performing power supply from the power supply to the load, if the voltage value of the power supply is relatively high, control is performed to shorten the on-time (by narrowing the width of the load).

- 23 041655 pulses), and when the power supply voltage value decreases, control is performed to increase the turn-on duration (pulse width increase), and if the power supply voltage value becomes equal to or less than the value obtained by subtracting A from the full charge voltage, electricity is supplied with 100% duty cycle (STEP S103 in FIG. 11). Moreover, the power-off control based on the turn-off time has also been described with reference to FIG. 9. Now, the control including control over the turn-off time based on the power supply voltage (closed circuit CCV voltage) will now be described.

Fig. 22A shows PWM control in the start section. Here, with respect to the measured value V1, a waveform having a pulse width to repetition period ratio of less than 100 is set. It is assumed that the maximum application time, which is the time that the voltage application lasts, has been set to a predetermined time tmax. Moreover, this maximum application time t _max corresponds to the off time described with reference to FIG. 9. Based on this condition, the amount of electricity that is supplied to the load can be described by the following expression 8.1. Here, D represents the duty cycle and R represents the value of the load resistance.

Expression 8.

F(S.1)

Wt = V ₂ x£x ₍ "„ (8.2) and"W't = n) (N.3)

L

Then, if the remaining battery level decreases and enters the battery voltage plateau section, the on duration (pulse width) for PWM control is set to a larger value than in the initial section. As the battery voltage decreases, more specifically near the second half of the plateau section (the side on which the remaining battery level is lower), a 100% duty cycle may be required to perform continuous power control. Fig. 22B shows PWM control at point P2, i. e. near the second half of the plateau section. In this example, with respect to the measured value V ₂ of the power supply voltage (smaller than V1), an input waveform having a 100% duty cycle is set. The amount of electricity that is supplied to the load can be described by the above expression 8.2. In the present embodiment, the input waveform adjustment can be performed such that the amount of electric power which is obtained according to expression 8.2 and the amount of electric power which is obtained according to expression 8.1 become the same or substantially the same. In addition, in one embodiment of the present invention, changing the waveform of the voltage supplied to the load according to the remaining battery level is one of the technical features. In the case where the voltage is high throughout the plateau section, the duty cycle may be set to less than 100% throughout the plateau section, or may be set to less than 100% in the beginning portion of the plateau section, and be 100% if the battery voltage drops and reaches the second half of the plateau section, or can be set to 100% across the entire plateau section.

Fig. 22C shows PWM control in the end section (the section in which the remaining charge level is lower than in the plateau section). In this example, the measured voltage V ₃ (less than V ₂ ) is set to an input waveform having a 100% duty cycle. The amount of electricity that is supplied to the load can be described by the above expression 8.3. In this control mode, the maximum time t _max is extended by an additional time α. The additional time α can be set such that the amount of electric power supplied according to expression 8.3 becomes the same or substantially the same as the amount of electric power supplied according to expression 8.1, expression 8.2 or the like. In other words, in the present embodiment, when the remaining charge level is smaller than the value in the plateau section, the maximum application time is increased so that the load is driven for a longer time. Therefore, even when the residual charge level is low, it is possible to perform aerosol generation (approximately) like a plateau section.

With respect to setting the power supply voltage value at the start of adding the extra time α, in one embodiment, with respect to the battery voltage value at which the duty cycle reaches 100% under PWM control, it is possible to add the extra time α so that the amount of electricity becomes the same as at the control value of the power supply voltage. In addition, the setting can be done so that in the case

- 24 041655 continuous supply of electricity with 100% duty cycle for the time t _max , while at the same time accepting a lack of electricity to some extent, if the voltage of the power supply drops to a voltage at which the lack of electricity becomes unacceptable, for example, voltage when the amount of electricity reaches a predetermined value (for example, 90%, 80%, 70%, or the like), an additional time α is added. Alternatively, tuning can be done such that additional time α is added if the power supply voltage reaches the end voltage in the plateau section (although CCV is preferred, OCV can be used instead).

In addition, with respect to the extended maximum application time (t _max +a), an upper time limit can be configured. In other words, the extension of the maximum application time t _max beyond a certain upper time limit can be prevented.

Obtaining open circuit voltage and closed circuit voltage and an example of sequential operation control.

Fig. 23 shows an example of the sequential control flow of the inhalable component generating device. The inhalable component generating device according to the present embodiment may be a device that performs control as shown in FIG. 23.

First, in step S501, the inhalable component generating device 100 determines whether an act of inhalation has been detected and whether the switch 30 is turned on (see FIG. 1). As described above, the act of inhalation detection may be a detection based on the output of the inhalation sensor 20 . In the case where the result is No, the inhalant generating device repeats step S501, while in the case of Yes, then in step S502, the inhalable component generating device activates the timer. In other words, in response to the detection of the inhalable component generation request, the following steps are performed (for example, including obtaining the closed circuit CCV voltage in step S506).

After the timer is activated, then in step S503, the inhalable component generating device 100 performs open circuit OCV voltage acquisition. In this step, as described above, the production may be performed only once, or may be performed two or more times. As a specific example, based on one or more obtained values, one characteristic value of the power supply voltage can be obtained by averaging or the like, as necessary.

Then, in step S504, the inhalable component generating device determines whether the open circuit OCV voltage exceeds a predetermined reference value. Here, this predetermined reference value (referred to as the second reference value in conjunction with the description in the claims) may be a reference value for determining whether to perform the closed circuit CCV voltage acquisition described below. The second reference value is not limited to a particular value and may be, for example, 3.45 V. In one embodiment, the end voltage of the plateau section may be used as the second reference value when the remaining battery level is represented by an open circuit OCV voltage value. This second control value, related to the open circuit voltage OCV value, can be set to a value equal to or greater than the discharge termination voltage.

In the case where the result of step S504 is YES, then the respirable component generating device turns on the discharge FET in step S505 and performs the closed circuit CCV voltage acquisition in step S506. Even at this stage, obtaining the voltage value may be performed only once, or may be performed two or more times. As necessary, one characteristic value of the magnitude of the power supply voltage may be obtained by averaging or the like. using the acquired values.

In the case where the result of step S504 is No, the inhalable component generating device performs the sequence for the case where the residual charge level is low (step S521). As this sequence, for example, a charging warning may be issued. In the present embodiment, as described above, in the case where the result of step S504 is No (i.e., the case where the measured value of the open circuit voltage is equal to or less than the second reference value (for example, 3.45 V)), the following stage, i.e. receiving closed circuit CCV voltage is not performed. Therefore, unnecessary operations and discharge are prevented.

Then, in step S507, the respirable component generating device determines whether the received closed circuit CCV voltage exceeds a predetermined reference value (referred to as the first reference value). The first control value is not limited to a particular value, and may be, for example, 3.00 V lower than the second control value. As described above, the closed circuit CCV voltage is lower than the open circuit voltage OCV. For this reason, it is preferable that the first reference value be less than

- 25 041655 second control value.

In addition, in FIG. 24 shows an example (e3 when the power supply temperature is room temperature) in which the closed circuit CCV voltage exceeds the first reference value (for example, 3.00 V). In FIG. 24 also shows an example (e1 when the power supply temperature is room temperature) in which the closed circuit CCV voltage exceeds the second reference value (for example, 3.40 V), and an example (e2) in which the closed circuit CCV voltage is more than lower than the second control value. In the example (e3), as indicated by the arrow α1, the closed circuit CCV voltage value is smaller than the open circuit voltage value by an amount corresponding to the voltage drop due to internal resistance and electrical double layer (also called IR drop). Moreover, example (e4) reflects the situation where the temperature of the power supply is low. When the temperature of the power supply is low, since the internal resistance and reactance rise as shown by the arrow α2, an additional IR drop occurs so that the voltage value becomes a small value.

In one embodiment, it is preferred that the aforementioned first reference value be set to a value less than the discharge termination voltage value (eg, 3.2 V). The reason is to detect a lack of output power of the power supply 10 when the temperature of the power supply is low. Even if it is determined from the value of the open circuit voltage OCV that the remaining charge level of the power supply 10 is sufficient, the output power of the power supply 10 may be insufficient due to the effect of temperature. As described above, the closed circuit CCV voltage value reflects the internal resistance and electrical double layer values, which are significantly affected by temperature. Therefore, the value of the closed circuit voltage CCV can be used to determine whether the output power of the power supply 10 is insufficient. In order to determine whether the output power of the power supply 10 is insufficient without using the closed circuit CCV voltage value, a temperature sensor is used to obtain the temperature of the power supply 10. On this basis, it can be said that the value of closed circuit CCV voltage is preferred by the user in terms of weight and cost.

In one embodiment, in order to accurately detect the lack of output power of the power supply 10 when the temperature of the power supply is low, at a temperature lower than room temperature, it is preferable that the first reference value (for example, 3.0 V) be equal to or less than than the values that the closed circuit CCV voltage value can take. In the case where the temperature of the power supply 10 is higher than the room temperature and the voltage of the power supply 10 is equal to or higher than the discharge termination voltage, it is more preferable that the first reference value be a value that the closed circuit CCV voltage value cannot accept. . In other words, it is preferable that the first reference value be a smaller value than the value obtained by subtracting the voltage drop (IR drop) that occurs in the internal resistance and in the electrical double layer when the power supply temperature is room temperature from the open-circuit OCV voltage. the circuits of the power supply 10 are in a state of discharging termination. As described above, when the power supply temperature is low, the internal resistance and reactance are worse than when the power supply temperature is room temperature. Therefore, due to the additional IR drop, the voltage value decreases. According to the temperature of the power supply 10, the additional drop that occurs when the temperature of the power supply is low may be relatively large. In this case, even if the power supply has sufficient SOC, the voltage value may become lower than 3.0V. In other words, if the first reference value is set as described above, a threshold value is set to reflect the IR drop, etc. . which may occur when the temperature of the power supply is low. Therefore, it becomes possible to accurately determine the output power of the power supply 10 .

In the present embodiment, before the PWM control described below, it is determined whether the remaining charge level of the power supply 10 is insufficient based on the open circuit voltage OCV, and whether the remaining charge level of the power supply 10 is insufficient based on the closed circuit voltage CCV. If multiple voltages having different characteristics are obtained from the power supply 10 as described above, the state of the power supply 10 can be more accurately understood.

In the present embodiment, after determining whether the residual charge level of the power supply 10 is insufficient based on the open circuit voltage OCV (steps S503 and S504 in FIG. 23), the inhalable component generating device determines whether the remaining charge level of the power supply 10 is insufficient. , based on the open circuit voltage OCV (steps S506 and S507). In this case, it is confirmed that the remaining charge level of the power supply 10 is not

- 26 041655 is insufficient at the time when the closed circuit CCV voltage is obtained. Therefore, it can be determined that the reason why the closed circuit CCV voltage is lower than the first reference value is the decrease in output power of the power supply 10 under low temperature conditions. Therefore, compared with the situation of using only the closed circuit voltage CCV, the state of the power supply 10 can be more accurately understood.

In the present embodiment, the closed circuit voltage CCV is used not only to determine whether the remaining charge level of the power supply 10 is insufficient, but also to adjust the on-duration of the PWM control described below and extend the maximum application time. Therefore, by measuring the closed circuit voltage CCV once, the understanding of the state of the power supply 10 can be improved, and the control accuracy of the power supply can also be improved.

In addition, room temperature can be defined, for example, in the range between 1 and 30°C. In this case, a temperature lower than room temperature implies a temperature below 1°C. Here, room temperature is used as a reference; however, a normal temperature can be used as a reference (for example, a range between 15 and 25°C).

Again with reference to FIG. 23, in the case where the result of step S507 is No, the inhalable component generating device executes the sequence for the case where the residual charge level is low (step S521). As this sequence, as described above, for example, the inhalable component generating device may issue a charging warning. In the present embodiment, even in the case where the output power of the power supply 10 is insufficient, the inhalable component generating device performs the sequence for the case where the residual charge level is low; however, instead of this sequence, a sequence may be performed which may be different from the above sequence and for the case where the output power is insufficient.

In the case where the result of step S507 is YES, then, in step S508, the respirable component generating device determines whether the obtained closed circuit CCV voltage exceeds another predetermined reference value. This step is for determining if the maximum application time needs to be extended (see FIGS. 22A-22C). With respect to the corresponding predetermined value as described above, the battery voltage value at which the duty cycle reaches 100% under PWM control can be set as the corresponding predetermined value, or the voltage at which the lack of residual charge level is unacceptable, or the voltage indicating the end of the plateau section may be set as the corresponding predetermined value, or other values may be set. In the case where the closed circuit CCV voltage exceeds the corresponding reference value (i.e., the case where the result of step S508 is YES), in step S509, the respirable component generating device performs PWM control based on the closed circuit CCV voltage without performing maximum application time extension. In other words, before detecting the next request to generate an inhalable component, PWM control is performed based on the closed circuit voltage CCV in step S509. Moreover, from the above description, it is clear that the acquisition of the closed circuit CCV voltage (step S506) and the PWM control based on the closed circuit voltage CCV (step S509) are not performed at the same time.

Meanwhile, in the case where the closed circuit voltage CCV does not exceed the corresponding reference value (the case where the result of step S508 is No), i.e. in the case where the remaining charge level of the power supply is less than the predetermined reference value, in step S510, the inhalable component generating device extends the maximum application time and performs power supply to the load. This time extension is not limited and can be performed using the method described above according to FIG. 22A-22C.

After starting the power supply in step S511, the inhalable component generating device determines whether the act of inhalation has been completed, whether the switch has been turned off, and whether a predetermined time has elapsed. If the result of step S511 is No, the inhalable component generating device continues to supply power; while if the result is YES, the inhalable component generating device proceeds to step S512 and ends the aerosol generation.

Although the specific example according to the process of FIG. 23, it is not essential to perform each step in the process, and of course some of them may be performed based on other technical ideas.

One technical idea according to the present invention is characterized by detecting a low remaining charge state of a power supply based on the closed circuit voltage CCV (steps S505-S507, S521, etc.). An open circuit OCV voltage measurement may or may not be performed.

In addition, another technical idea according to the present invention is characterized by measuring the closed circuit voltage CCV and performing correction of the load application condition (correction of at least one of the value and waveform of the voltage supplied to the load, etc.) based on the value of the closed circuit voltage ( steps S508-S510, etc.). Even so, the measurement of the open circuit OCV voltage is not essential and may or may not be performed. In other words, the above correction can be performed based only on the closed circuit voltage CCV of the open circuit voltage OCV and the closed circuit voltage CCV.

Consideration regarding measuring the closed circuit voltage and determining the state of low residual charge level based on the measurement result.

As described above, in one embodiment of the present invention, it is possible to obtain a closed circuit voltage value and determine whether the power supply is in a low remaining state of charge based on the obtained value.

In addition, the inhalable component generating device 100 according to the present embodiment may include an auxiliary unit for performing predetermined operations in the case where it is determined that the power supply is in a low remaining state of charge. Various blocks can be used as an auxiliary block, and for example, any one of (i) a block for preventing the power supply 10 from being discharged, (ii) a block for notifying that the power supply is in a low remaining state of charge, (iii) ) block for correcting the temperature of the power supply, etc. or their combination. More specifically, in the case of a low remaining charge state, the discharge of the power supply 10 can be prevented by the operation of the auxiliary unit. Further, a configuration is preferable in which, in the event of a low residual charge state, the user is notified of the corresponding state by operation of the auxiliary unit. Further, a configuration in which, in the event of a low remaining charge state, is heated by the action of the auxiliary unit is preferable. In addition, it is preferable to heat the power supply 10 in the case where it is determined based on the above-described closed circuit voltage CCV that the output power of the power supply 10 is insufficient. The rationale is that if the power supply 10 is heated in a low remaining state of charge, since the voltage drop (IR drop) due to internal resistance, etc. of the power supply 10 improves, there is a possibility that the lack of output power of the power supply 10 will be corrected.

A consideration for measuring the closed circuit voltage and correcting the load application condition based on the measurement result.

The present embodiment also discloses a procedure for appropriately adjusting the voltage application condition of the load based on the obtained value of the closed circuit voltage. In other words, as described with reference to FIG. 21 and 22A-22C, in this type of inhalable component generating device 100, the power supply voltage value that is measured depends on the current consumption of the power supply. Therefore, in one embodiment, it is preferable to correct the value and waveform of the voltage applied to the load based on the value of the power supply voltage obtained by the measurement (for example, V1, V ₂ , V ₃ , etc., see Fig. 22A-22C).

Incidentally, if the power supply is maintained in a state where the output power of the power supply 10 is insufficient, degradation of the power supply 10 is promoted. Therefore, this is not preferred. According to the present embodiment, whether the output power of the power supply 10 is insufficient is determined using the closed circuit voltage CCV, and in the case where the output power is insufficient, the power supply from the power supply 10 is interrupted at least temporarily. Therefore, degradation of the power supply 10 is prevented. Therefore, a power saving effect is achieved in which the power supply 10 can be used for a longer time.

In addition, if the power supply 10 is not charged and discharged under proper conditions according to the remaining charge level and the like, degradation of the power supply 10 is promoted. Therefore, this is not preferred. According to the present embodiment, since the power supply control is performed based on the accurate residual charge level of the power supply 10 detected based on the closed circuit voltage CCV, the accuracy of the power supply control is improved. Therefore, degradation of the power supply 10 is prevented. Therefore, a power saving effect is achieved in which the power supply 10 can be used for a longer time.

In addition, according to one embodiment of the present invention, a closed circuit voltage representing the actual voltage value of the power supply 10 indicative of temperature and degradation state is used to correct various variables such as voltage applied to the load. Therefore, reliability of aerosol generation and control accuracy of the power supply can be ensured. In other words, since charging and discharging are properly performed based on the actual voltage value of the power supply 10,

- 28 041655, an energy saving effect is achieved in which the power supply 10 can be used for a longer time.

Additional note.

This application discloses the following inventions, listed below as numbered paragraphs. In addition, reference numerals and specific numerical values are shown for reference only, but are not intended to limit the present invention in general.

1. A device that generates an inhalable component, including a power source;

a load group including a load configured to vaporize or atomize the source of the inhalable component by the action of electricity from the power source;

a tuner configured to correct a value or waveform of a voltage supplied to the load; and a control circuit configured to be capable of obtaining a power supply voltage value, the control circuit performing a process (a1) of obtaining a closed circuit power supply voltage value in a closed circuit state in which the power supply and the load group are electrically connected; and a tuner control process (a2) based on the closed circuit voltage value.

Furthermore, the tuner may be of any configuration as long as it can correct at least one of the input voltage value and waveform. For example, known voltage signal generating circuits can be used.

2. The respirable component generating device disclosed in claim 1, wherein in process (a1), after the power supply and the load group have formed a closed circuit state, if the relaxation time necessary for the closed circuit voltage to become stationary state, the control circuit receives the closed circuit voltage value.

3. The respirable component generating apparatus as disclosed in claim 1, wherein in process (a1), the control circuit acquires multiple power supply voltage values for a predetermined time, and obtains a closed circuit voltage value based on the multiple acquired power supply voltage values detected in a closed circuit state configured such that the closed circuit voltage value is obtained based on the plurality of voltage values obtained.

4. The respirable component generating device as disclosed in claim 3, wherein the predetermined detection time is longer than the relaxation time required for the closed circuit voltage to go to a steady state.

5. The inhalable component generating apparatus as disclosed in claim 3, wherein the predetermined detection time is such a time at which, even if the load is actuated in a closed circuit state, any inhalable component is not generated.

6. The inhalable component generating device disclosed in any one of claims 1 to 5, wherein, before process (a1), the control circuit obtains the open circuit voltage value of the power supply in an open circuit state in which the power supply and the load group are not electrically connected, and , in the case where the value of the open circuit voltage is equal to or less than the discharge termination voltage of the power supply, the control circuit does not execute the process (a1) and the process (a2).

In this configuration, before obtaining the closed circuit voltage value, the control circuit performs the acquisition of the open circuit voltage value, and in the case where this value is equal to or lower than the discharge termination voltage, the control circuit determines that it is not necessary to sequentially execute the process of obtaining the open circuit voltage value. chain and does not execute processes (a1) and (a2). According to this configuration, degradation of the power supply due to over-discharge and damage to the load and/or power supply due to excessive power supply are prevented, and it becomes possible to prevent mist generation of aerosol.

7. The inhalable component generating device as disclosed in any one of claims 1 to 5, wherein, in process (a1), the control circuit corrects at least one of pulse width, duty cycle, average voltage value, actual value, voltage value, and application time the voltage applied to the load and the maximum value of the application time, based on the value of the closed circuit voltage.

8. The inhalable component generating device disclosed in claim 7, wherein in process (a1), the control circuit sets the maximum value of the application time to be longer when the value of the closed circuit voltage is smaller.

9. The inhalant component generating device disclosed in claim 7, wherein the control circuit may receive a generation request, which is a request related to the generation of the inhalant component, and the control circuit sets the maximum value of the time

- 29 041655 change the application so that the amount of electricity that is supplied to the load according to the generation request, in the case where the closed circuit voltage value is the first value, becomes the same or substantially the same as the amount of electricity that is supplied to the load according to a generation request when the loop voltage value is a second value different from the first value.

10. The inhalant generating device as disclosed in claim 8 or 9, wherein the control circuit may receive a generate request, which is a request related to the generation of the inhalable component, and based on a shorter time than the maximum application time value, and the time when the generation request has been sequentially received, the control circuit adjusts the application time of the voltage applied to the load.

11. The inhalant generating device disclosed in claim 7, wherein the control circuit may receive a generation request, which is a request related to the generation of the inhalant, and in process (a1), the control circuit sets the application time based on the request for generation, for a longer one, when the value of the closed circuit voltage is lower.

12. The inhalant generating device disclosed in claim 7, wherein the control circuit may receive a generate request, which is a request related to the generation of the inhalant, and when setting the application time, the control circuit sets the application time such that the amount of electric power supplied to the load according to the generation request, in the case where the value of the closed circuit voltage is the first value, becomes the same or substantially the same as the amount of electric power supplied to the load according to the generation request, in the case where the value closed circuit voltage is a second value that is different from the first value.

13. The inspiratory component generating device disclosed in any one of claims 7 to 12, wherein the control circuit only adjusts the maximum application time value or application time when the closed circuit voltage value is less than the voltage value related to the plateau section, in which the variation of the voltage value of the power supply according to the variation of the residual charge level of the power supply is smaller compared to the other voltage range.

14. An inhalable component generating device as disclosed in any one of claims 1 to 13, further comprising a battery pack configured to store a battery in the case; and a cartridge unit that is attached to the battery pack so as to be replaceable.

15. A control circuit for controlling at least part of the functions of the device generating the inhalable component, including a power source, a load group including a load configured to vaporize or atomize the source of the inhalable component by the action of electricity from the power source, and a tuner configured to correct the value or a waveform of a voltage supplied to a load, wherein the control circuit performs a process of obtaining a closed circuit power supply voltage value in a closed circuit state in which the power supply and the load group are electrically connected; and a tuner control process based on the closed circuit voltage value.

16. A method for controlling an inhalable component generating device, including a power source, a load group including a load configured to vaporize or atomize the inhalable component source by the action of electricity from the power source, and a tuning unit configured to correct the value or waveform of the voltage supplied to a load, wherein the control method performs a step of obtaining a closed circuit voltage value; and a tuner control step based on the closed circuit voltage value.

17. Generating inhalable component device, including a power source;

a load group including a load configured to vaporize or atomize the source of the inhalable component by the action of electricity from the power source;

a tuner configured to correct multiple variables constituting the waveform of the voltage applied to the load; and a control circuit configured to be capable of obtaining a power supply voltage value in which the control circuit performs a process (a1) of obtaining a power supply closed circuit voltage value in a closed circuit state in which the power supply and the load group are electrically connected;

the process (a2) of correcting the first variable, which is one of the multiple variables, in the case where the value of the closed circuit voltage is

-

Claims (16)

smaller than the voltage value related to the plateau section in which the variation of the power supply voltage value according to the variation of the residual charge level of the power supply is smaller compared to the other voltage range; and a process (a3) of correcting the second variable, which is one of the plurality of variables and different from the first variable, in the case where the closed circuit voltage value is equal to or greater than the voltage values related to the plateau section. 18. A method for controlling an inhalable component generating device, comprising a power source, a load group including a load configured to vaporize or atomize the inhalable component source by the action of electricity from the power source, and a tuner configured to correct multiple variables that make up the waveform a voltage supplied to the load, the control method comprising the step of (a1) obtaining a closed circuit voltage value of the power supply in a closed circuit state in which the power supply and the load group are electrically connected; step (a2) of correcting the first variable, which is one of the plurality of variables, in the case where the closed circuit voltage value is smaller than the voltage value related to the plateau section, in which the variation of the power supply voltage value according to the variation of the residual charge level of the source power supply is smaller compared to other voltage range; and a step (a3) of correcting a second variable that is one of the plurality of variables and different from the first variable, in the case where the closed circuit voltage value is equal to or greater than the voltage values related to the plateau section. 19. A control program for causing the inhalable component generating device to execute the control method disclosed in claim 16 or 18. This application also discloses, for example, aspects of the invention obtained by changing certain expressions in the disclosed content as a result of aspects of the invention into expressions of methods, computer programs, and computer program media. CLAIM 1. A device that generates an inhalable component, including a power source; a load group including a load configured to vaporize or atomize the source of the inhalable component by the action of electricity from the power source; a tuner configured to correct a value or waveform of a voltage supplied to the load; and a control circuit configured to obtain the power supply voltage value, the control circuit configured to perform the process (a1) of obtaining the power supply closed circuit voltage value in a closed circuit state in which the power supply and the load group are electrically connected and power is supplied from the source power supply to the load group; and a tuner control process (a2) based on the closed circuit voltage value. 2. The inspiratory component generating device according to claim 1, wherein in process (a1), the control circuit is configured to obtain a closed-circuit voltage value after the power supply and the load group have formed a closed-circuit state if a relaxation time necessary for so that the voltage of the closed circuit passes into a stationary state. 3. The respirable component generating device according to claim 1, wherein in process (a1), the control circuit is configured to acquire a plurality of power supply voltage values during a predetermined detection time, and obtain a closed circuit voltage value based on a plurality of obtained power supply voltage values, detected in a closed circuit state, in which the closed circuit voltage value is obtained based on the plurality of obtained voltage values. 4. The respirable component generating device according to claim 3, wherein the predetermined detection time is longer than the relaxation time required for the closed circuit voltage to go to a steady state. 5. The inhalable component generating device according to claim 3, wherein the predetermined detection time is such a time at which even if the load is actuated in a closed circuit state, any inhalable component is not generated. 6. An inhalable component generating device according to any one of claims 1 to 5, wherein - 31 041655 before the process (al) the control circuit is configured to receive the open circuit voltage value of the power supply in an open circuit state in which the power supply and the load group are not electrically connected; and the control circuit is configured to not execute the process (a1) and the process (a2) in the case where the value of the open circuit voltage is equal to or less than the discharge stop voltage of the power supply. 7. The inhalable component generating device according to any one of claims 1 to 5, wherein in process (a2) the control circuit is configured to adjust at least one of the pulse width, duty cycle, average value, actual value, voltage value, and application time the voltage applied to the load and the maximum value of the application time, based on the value of the closed circuit voltage. 8. The inhalable component generating device according to claim 7, wherein in process (a2), the control circuit is configured to set the maximum application time value to longer when the closed circuit voltage value is smaller. 9. The inhalable component generating device according to claim 7, wherein the control circuit is configured to receive a generation request, which is a request related to the generation of the inhalable component; and the control circuit is configured to set the maximum value of the application time so that the amount of electric power that is supplied to the load according to the generation request, in the case where the value of the closed circuit voltage is the first value, becomes the same or substantially the same as the amount of electric power , which is supplied to the load according to the generation request, in the case where the closed circuit voltage value is a second value different from the first value. 10. The inhalable component generating device according to claim 8 or 9, wherein the control circuit is configured to receive a generation request, which is a request related to the generation of the inhalable component; and the control circuit is configured to adjust the application time of the voltage supplied to the load based on the shorter time of the maximum value of the application time and the time when the generation request was sequentially received. 11. The inhalable component generating device according to claim 7, wherein the control circuit is configured to receive a generation request, which is a request related to the generation of the inhalable component; and in process (a1), the control circuit is configured to set the application time based on the generation request to be longer when the value of the closed circuit voltage is smaller. 12. The inhalable component generating device according to claim 7, wherein the control circuit is configured to receive a generation request, which is a request related to the generation of the inhalable component; and the control circuit is configured to set the application time such that the amount of electric power that is supplied to the load according to the generation request, in the case where the value of the closed circuit voltage is the first value, becomes the same or substantially the same as the amount of electric power that is supplied to the load according to the generation request in the case where the closed circuit voltage value is a second value different from the first value. 13. The inspiratory component generating device according to any one of claims 7 to 12, wherein the control circuit is configured to adjust the maximum application time value or application time only in the case where the closed circuit voltage value is less than the voltage value related to the plateau section, in which the variation of the voltage value of the power supply according to the variation of the charge level of the power supply is smaller compared to the other voltage range. 14. The inhalable component generating device of claim 1, wherein the control circuit is configured to perform control based on a sensor that provides output signals for generating an inhalable component; execute process (a1) in response to the detection of the generation request; and perform process (a2) before detecting the next generation request. 15. The inhalable component generating device of claim 1, wherein the control circuit is configured to not perform process (a1) and process (a2) at the same time. 16. Generating inhalable component device according to any one of claims 1 to 15, further including a battery pack made by placing a battery, which is a power source, in the case; And -