Non-combustion aspirator

Abstract

To provide a power supply unit for an aerosol generation device that can stabilize an operation while suppressing cost and size increase by connecting an appropriate protection component to a receptacle.SOLUTION: A non-combustion type inhaler comprises a power supply, a heater connector to which a heater is connected, a MCU, a charging IC, a receptacle RCP, a power supply line PL connecting an input terminal VBUS of the charging IC to a power supply input terminal VBUS of the receptacle RCP, power supply line protection components 205 provided to the power supply line PL, data lines DL1-DL4 connecting the MCU to a data terminal of the receptacle RCP, and data line protection components 215 provided to the data lines DL1-DL4. The number of power supply line protection components 205 is greater than the number of data line protection components 215.SELECTED DRAWING: Figure 17

Description

[Technical field]

[0001] The present invention relates to a power supply unit for an aerosol generating device. [Background technology]

[0002] Patent Documents 1 and 2 describe a power supply unit for an aerosol generating device that is equipped with a receptacle such as a USB.

[0003] The receptacle has many terminals in addition to the VBUS terminal that supplies charging power.

[0004] On the other hand, in order to safely introduce power supplied from an external power source through a receptacle into the device, it is preferable to provide a protective component that protects electronic components in the device from disruptions to the external power supply. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japan Special Publication No. 2020-504599 [Patent Document 2] US Patent Application Publication No. 2019 / 0380388 Summary of the Invention [Problem to be solved by the invention]

[0006] There was room for consideration as to how to connect the protective components to the multiple terminals provided on the receptacle.

[0007] The present invention provides a power supply unit for an aerosol generating device that can stabilize operation while suppressing increases in cost and size by connecting an appropriate protective component to a receptacle. [Means for solving the problem]

[0008] The power supply unit of the aerosol generating device of the present invention comprises: Power supply, a heater connector to which a heater that consumes power supplied from the power source to heat the aerosol source is connected; a controller configured to control the supply of power from the power source to the heater connector; a charging IC including an input terminal and a charging terminal connected to the power source, the charging IC being configured to convert power input to the input terminal and output the converted power from the charging terminal; a receptacle including a power terminal and a data terminal and configured to be electrically connectable to an external power source; a power supply line connecting the power supply terminal and the input terminal; a data line connecting the data terminal and the controller; a first protection component provided on the power supply line; a second protection component provided on the data line; The number of the first protection components is greater than the number of the second protection components. Effect of the Invention

[0009] According to the present invention, it is possible to stabilize the operation of the power supply unit of the aerosol generating device while suppressing an increase in cost and size of the power supply unit. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a perspective view of a non-combustion type inhaler. [Diagram 2] FIG. 2 is a perspective view of the non-combustion type inhaler with a rod attached. [Diagram 3] FIG. 2 is another perspective view of the non-combustion type inhaler. [Figure 4] FIG. 2 is an exploded perspective view of a non-combustion type inhaler. [Diagram 5] FIG. 2 is a perspective view of the internal unit of the non-combustion inhaler. [Figure 6] FIG. 6 is an exploded perspective view of the internal unit of FIG. 5. [Figure 7]FIG. 2 is a perspective view of the internal unit with the power supply and chassis removed. [Figure 8] FIG. 13 is another perspective view of the internal unit with the power supply and chassis removed. [Figure 9] FIG. 2 is a schematic diagram for explaining an operation mode of the inhaler. [Figure 10] FIG. 2 is a diagram showing a schematic configuration of an electric circuit of an internal unit. [Figure 11] FIG. 4 is a diagram for explaining the operation of an electric circuit in a sleep mode. [Figure 12] FIG. 4 is a diagram for explaining the operation of an electric circuit in an active mode. [Figure 13] FIG. 11 is a diagram for explaining the operation of an electric circuit in a heating initial setting mode. [Figure 14] FIG. 11 is a diagram for explaining the operation of the electric circuit when the heater is heated in a heating mode. [Figure 15] 11 is a diagram for explaining the operation of an electric circuit when detecting the temperature of a heater in a heating mode. FIG. [Figure 16] FIG. 4 is a diagram for explaining the operation of an electric circuit in a charging mode. [Figure 17] FIG. 13 shows a line extending from a receptacle and a protective component for the receptacle. [Figure 18] 2 is a diagram showing a main surface of a receptacle mounting board; [Figure 19] FIG. 2 is a diagram showing a minor surface of a receptacle mounting board. [Figure 20] FIG. 2 is a diagram showing a main surface of an MCU mounted board. [Figure 21] FIG. 2 is a diagram showing the sub-side of the MCU mounted board. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, a suction system, which is an embodiment of the aerosol generating device of the present invention, will be described with reference to the drawings. This suction system includes a non-combustion type aspirator 100 (hereinafter, simply referred to as the aspirator 100) which is an embodiment of the power supply unit of the present invention, and a rod 500 heated by the aspirator 100. In the following description, an example will be described in which the aspirator 100 houses a heating unit in an undetachable manner. However, the heating unit may be configured to be detachable from the aspirator 100. For example, the rod 500 and the heating unit may be integrated and configured to be detachable from the aspirator 100. In other words, the power supply unit of the aerosol generating device may be configured not to include a heating unit as a component. Note that the term "undetachable" refers to a mode in which the unit cannot be removed within the scope of the intended use. Alternatively, the heating unit may be configured by cooperation between an induction heating coil provided in the aspirator 100 and a susceptor built into the rod 500.

[0012] Fig. 1 is a perspective view showing the overall configuration of the aspirator 100. Fig. 2 is a perspective view of the aspirator 100 showing a state in which the rod 500 is attached. Fig. 3 is another perspective view of the aspirator 100. Fig. 4 is an exploded perspective view of the aspirator 100. In the following description, an orthogonal coordinate system in a three-dimensional space is used, in which three mutually orthogonal directions are defined as the front-rear direction, the left-right direction, and the up-down direction for convenience. In the drawings, the front is indicated as Fr, the rear as Rr, the right side as R, the left side as L, the upper side as U, and the lower side as D.

[0013] The inhaler 100 is configured to generate aerosol containing a flavor by heating an elongated, generally cylindrical rod 500 (see FIG. 2), which is an example of a flavor ingredient generating substrate having an aerosol source and a filling containing a flavor source.

[0014] <Flavor component generating base material (rod)> The rod 500 includes a fill containing an aerosol source that is heated to a predetermined temperature to produce an aerosol.

[0015] The type of aerosol source is not particularly limited, and various extracts from natural products and / or their components can be selected depending on the application. The aerosol source may be a solid or a liquid such as a polyhydric alcohol such as glycerin or propylene glycol, or water. The aerosol source may contain a flavor source such as a tobacco raw material or an extract derived from a tobacco raw material that releases a flavor component when heated. The gas to which the flavor component is added is not limited to an aerosol, and for example, invisible steam may be generated.

[0016] The filling of the rod 500 may contain tobacco shreds as a flavor source. The material of the tobacco shreds is not particularly limited, and known materials such as lamina and backbone can be used. The filling may contain one or more flavorings. The type of flavor is not particularly limited, but menthol is preferable from the viewpoint of imparting a good smoking taste. The flavor source may contain plants other than tobacco (e.g., mint, Chinese medicine, herbs, etc.). Depending on the application, the rod 500 may not contain a flavor source.

[0017] <Overall configuration of non-combustion type aspirator> Next, the overall configuration of the inhaler 100 will be described with reference to FIGS. The inhaler 100 includes a substantially rectangular parallelepiped case 110 having a front surface, a rear surface, a left surface, a right surface, a top surface, and a bottom surface. The case 110 includes a cylindrical case body 112 having a bottom and an integrally formed front surface, a rear surface, a top surface, a bottom surface, a bottom surface, and a bottom surface, an outer panel 115 and an inner panel 118 that seal an opening 114 (see FIG. 4) of the case body 112 and form the left surface, and a slider 119.

[0018] The inner panel 118 is fixed to the case body 112 with bolts 120. The outer panel 115 is fixed to the case body 112 so as to cover the outer surface of the inner panel 118 by magnets 124 held by a chassis 150 (see FIG. 5 ), which will be described later and is housed in the case body 112. Since the outer panel 115 is fixed by the magnets 124, the user can replace the outer panel 115 according to preference.

[0019] The inner panel 118 is provided with two through holes 126 through which the magnet 124 passes. Between the two through holes 126 arranged vertically, the inner panel 118 is further provided with a vertically long hole 127 and a circular hole 128. The long hole 127 is for transmitting light emitted from eight LEDs (Light Emitting Diodes) L1 to L8 built in the case body 112. A button-type operation switch OPS built in the case body 112 passes through the circular hole 128. This allows the user to detect the light emitted from the eight LEDs L1 to L8 through the LED window 116 of the outer panel 115. The user can also press down the operation switch OPS through the pressing portion 117 of the outer panel 115.

[0020] As shown in Fig. 2, an opening 132 into which a rod 500 can be inserted is provided on the upper surface of the case body 112. The slider 119 is connected to the case body 112 so as to be movable in the front-rear direction between a position where the opening 132 is closed (see Fig. 1) and a position where the opening 132 is opened (see Fig. 2). Please note that in Fig. 2, for ease of understanding, the slider 119 is shown in a see-through manner, and only the outer shape of the slider 119 is shown by a two-dot chain line.

[0021] The operation switch OPS is used to perform various operations of the inhaler 100. For example, the user operates the operation switch OPS via the pressing unit 117 while the rod 500 is inserted into the opening 132 and attached as shown in FIG. 2. This causes the heating unit 170 (see FIG. 5) to heat the rod 500 without burning it. When the rod 500 is heated, an aerosol is generated from the aerosol source contained in the rod 500, and the flavor of the flavor source contained in the rod 500 is added to the aerosol. The user can inhale the aerosol containing the flavor by holding the mouthpiece 502 of the rod 500 protruding from the opening 132 in their mouth and inhaling.

[0022] 3, a charging terminal 134 is provided on the bottom surface of the case body 112 for electrically connecting to an external power source such as an outlet or a mobile battery to receive power. In this embodiment, the charging terminal 134 is a Universal Serial Bus (USB) Type-C receptacle, but is not limited to this. Hereinafter, the charging terminal 134 is also referred to as a receptacle RCP.

[0023] The charging terminal 134 may be configured to include, for example, a power receiving coil and to be capable of contactlessly receiving power transmitted from an external power source. In this case, the method of power transmission (Wireless Power Transfer) may be an electromagnetic induction type, a magnetic resonance type, or a combination of the electromagnetic induction type and the magnetic resonance type. As another example, the charging terminal 134 may be connectable to various USB terminals or the like, and may include the above-mentioned power receiving coil.

[0024] The configuration of the inhaler 100 shown in Figures 1 to 4 is merely an example. The inhaler 100 can be configured in various forms such that, by holding the rod 500 and applying an action such as heating, the rod 500 generates gas imparted with flavor components, and the user can inhale the generated gas.

[0025] <Internal structure of non-combustion type aspirator> The internal unit 140 of the inhaler 100 will be described with reference to FIGS. Fig. 5 is a perspective view of the internal unit 140 of the inhaler 100. Fig. 6 is an exploded perspective view of the internal unit 140 of Fig. 5. Fig. 7 is a perspective view of the internal unit 140 with the power supply BAT and the chassis 150 removed. Fig. 8 is another perspective view of the internal unit 140 with the power supply BAT and the chassis 150 removed.

[0026] The internal unit 140 housed in the internal space of the case 110 includes a chassis 150, a power supply BAT, a circuit section 160, a heating section 170, a notification section 180, and various sensors.

[0027] The chassis 150 includes a plate-shaped chassis main body 151 disposed approximately at the center of the internal space of the case 110 in the front-rear direction and extending in the up-down and front-rear directions, a plate-shaped front-rear dividing wall 152 disposed approximately at the center of the internal space of the case 110 in the front-rear direction and extending in the up-down and left-right directions, a plate-shaped upper-lower dividing wall 153 extending forward from approximately the center of the front-rear dividing wall 152 in the up-down direction, a plate-shaped chassis upper wall 154 extending rearward from upper edges of the front-rear dividing wall 152 and the chassis main body 151, and a plate-shaped chassis lower wall 155 extending rearward from lower edges of the front-rear dividing wall 152 and the chassis main body 151. The left surface of the chassis main body 151 is covered by the inner panel 118 and outer panel 115 of the case 110 described above.

[0028] The internal space of the case 110 is defined by a chassis 150, with a heating unit accommodating area 142 defined at the upper front portion, a board accommodating area 144 defined at the lower front portion, and a power supply accommodating space 146 defined vertically at the rear.

[0029] The heating section 170 accommodated in the heating section accommodation area 142 is composed of a plurality of cylindrical members, which are arranged concentrically to form a cylindrical body as a whole. The heating section 170 has a rod accommodation section 172 capable of accommodating a part of the rod 500 therein, and a heater HTR (see Figs. 10 to 16) that heats the rod 500 from the outer periphery or the center. It is preferable that the rod accommodation section 172 is composed of a heat insulating material, or that a heat insulating material is provided inside the rod accommodation section 172, so that the surface of the rod accommodation section 172 and the heater HTR are insulated from each other. The heater HTR may be any element capable of heating the rod 500. The heater HTR is, for example, a heating element. Examples of the heating element include a heating resistor, a ceramic heater, and an induction heating type heater. For example, a heater HTR having a PTC (Positive Temperature Coefficient) characteristic in which the resistance value increases with increasing temperature is preferably used as the heater HTR. Alternatively, a heater HTR having a NTC (Negative Temperature Coefficient) characteristic in which the resistance value decreases with increasing temperature may be used. The heating unit 170 has a function of defining a flow path of air to be supplied to the rod 500 and a function of heating the rod 500. The case 110 is formed with an air vent (not shown) for allowing air to flow in, and is configured to allow air to flow into the heating unit 170.

[0030] The power source BAT accommodated in the power source accommodation space 146 is a rechargeable secondary battery, an electric double layer capacitor, or the like, and is preferably a lithium ion secondary battery. The electrolyte of the power source BAT may be one of a gel electrolyte, an electrolytic solution, a solid electrolyte, and an ionic liquid, or a combination of these.

[0031] The notification unit 180 notifies various information such as the SOC (State Of Charge) indicating the charging state of the power source BAT, the pre-heating time for inhalation, the period during which inhalation is possible, etc. The notification unit 180 of this embodiment includes eight LEDs L1 to L8 and a vibration motor M. The notification unit 180 may be composed of light-emitting elements such as the LEDs L1 to L8, may be composed of a vibration element such as the vibration motor M, or may be composed of a sound output element. The notification unit 180 may be a combination of two or more elements selected from the light-emitting elements, vibration elements, and sound output elements.

[0032] The various sensors include an intake sensor that detects the user's puffing action (inhalation action), a power supply temperature sensor that detects the temperature of the power supply BAT, a heater temperature sensor that detects the temperature of the heater HTR, a case temperature sensor that detects the temperature of the case 110, a cover position sensor that detects the position of the slider 119, and a panel detection sensor that detects the attachment / detachment of the outer panel 115.

[0033] The intake sensor is mainly composed of, for example, a thermistor T2 arranged near the opening 132. The power supply temperature sensor is mainly composed of, for example, a thermistor T1 arranged near the power supply BAT. The heater temperature sensor is mainly composed of, for example, a thermistor T3 arranged near the heater HTR. As described above, it is preferable that the rod accommodating section 172 is insulated from the heater HTR. In this case, it is preferable that the thermistor T3 contacts or is close to the heater HTR inside the rod accommodating section 172. When the heater HTR has a PTC characteristic or an NTC characteristic, the heater HTR itself may be used as the heater temperature sensor. The case temperature sensor is mainly composed of, for example, a thermistor T4 arranged near the left surface of the case 110. The cover position sensor is mainly composed of a Hall IC 14 (see Figs. 10 to 16) including a Hall element arranged near the slider 119. The panel detection sensor is mainly composed of a Hall IC 13 (see FIGS. 10 to 16) including a Hall element arranged in the vicinity of the inner surface of the inner panel 118.

[0034] The circuit section 160 includes four circuit boards, a plurality of ICs (Integrate Circuits), and a plurality of elements. The four circuit boards include an MCU mounting board 161 on which an MCU (Micro Controller Unit) 1 and a charging IC 2 (described later) are mainly arranged, a receptacle mounting board 162 on which a charging terminal 134 is mainly arranged, an LED mounting board 163 on which an operation switch OPS, LEDs L1 to L8, and a communication IC 15 (described later) are arranged, and a Hall IC mounting board 164 on which a Hall IC 14 (described later) including a Hall element constituting a cover position sensor is arranged.

[0035] The MCU mounting board 161 and the receptacle mounting board 162 are arranged parallel to each other in the board housing area 144. More specifically, the MCU mounting board 161 and the receptacle mounting board 162 are arranged with their element mounting surfaces aligned in the left-right and up-down directions, with the MCU mounting board 161 being arranged forward of the receptacle mounting board 162. The MCU mounting board 161 and the receptacle mounting board 162 are provided with openings 175 and 176 (see FIGS. 18 to 21), respectively. The MCU mounting board 161 and the receptacle mounting board 162 are fastened to the board fixing part 156 of the front and rear dividing wall 152 with bolts 136, with a cylindrical spacer 173 interposed between the peripheries of the openings 175 and 176. That is, the spacer 173 is a fixing member that fixes the positions of the MCU mounting board 161 and the receptacle mounting board 162 inside the case 110, and mechanically connects the MCU mounting board 161 and the receptacle mounting board 162. This makes it possible to prevent the MCU mounting board 161 and the receptacle mounting board 162 from coming into contact with each other and causing a short-circuit current between them. The spacer 173 is conductive, and the grounds of the MCU mounting board 161 and the receptacle mounting board 162 are connected via the spacer 173. This makes it possible to equalize the ground potentials of the MCU mounting board 161 and the receptacle mounting board 162, and stabilize the supply of charging power and operating power and communication between the MCU mounting board 161 and the receptacle mounting board 162.

[0036] For convenience, the surfaces of the MCU mounting board 161 and the receptacle mounting board 162 facing forward are referred to as main surfaces 161a and 162a, respectively, and the surfaces opposite the main surfaces 161a and 162a are referred to as sub-surfaces 161b and 162b, respectively. The sub-surface 161b of the MCU mounting board 161 and the main surface 162a of the receptacle mounting board 162 face each other with a predetermined gap therebetween. The main surface 161a of the MCU mounting board 161 faces the front surface of the case 110, and the sub-surface 162b of the receptacle mounting board 162 faces the front / rear dividing walls 152 of the chassis 150. The MCU mounting board 161 and the receptacle mounting board 162 are electrically connected via a flexible wiring board 165. The elements and ICs mounted on the MCU mounting board 161 and the receptacle mounting board 162 will be described later.

[0037] The LED mounting board 163 is disposed on the left side surface of the chassis main body 151, between two magnets 124 disposed above and below. The element arrangement surface of the LED mounting board 163 is disposed along the up-down direction and the front-rear direction. In other words, the element arrangement surfaces of the MCU mounting board 161 and the receptacle mounting board 162 are orthogonal to the element arrangement surface of the LED mounting board 163. In this manner, the element arrangement surfaces of the MCU mounting board 161 and the receptacle mounting board 162 and the element arrangement surface of the LED mounting board 163 are not necessarily orthogonal, but preferably intersect (are non-parallel). The vibration motor M, which constitutes the notification unit 180 together with the LEDs L1 to L8, is fixed to the lower surface of the chassis lower wall 155, and is electrically connected to the MCU mounting board 161.

[0038] The Hall IC mounting board 164 is disposed on the upper surface of the chassis upper wall 154 .

[0039] <Aspirator operation mode> Fig. 9 is a schematic diagram for explaining the operation modes of the inhalator 100. As shown in Fig. 9, the operation modes of the inhalator 100 include a charging mode, a sleep mode, an active mode, a heating initial setting mode, a heating mode, and a heating end mode.

[0040] The sleep mode is a power saving mode that cuts off the power supply to the electronic components required for the heating control of the heater HTR.

[0041] In the active mode, most of the functions are enabled except for the heating control of the heater HTR. When the slider 119 is opened while the inhaler 100 is operating in the sleep mode, the inhaler 100 switches the operation mode to the active mode. When the slider 119 is closed or the non-operation time of the operation switch OPS reaches a predetermined time while the inhaler 100 is operating in the active mode, the inhaler 100 switches the operation mode to the sleep mode.

[0042] The heating initial setting mode is a mode for performing initial settings of control parameters and the like for starting heating control of the heater HTR. When the inhaler 100 detects an operation of the operation switch OPS while operating in the active mode, the operation mode is switched to the heating initial setting mode, and when the initial setting is completed, the operation mode is switched to the heating mode.

[0043] The heating mode is a mode for executing heating control of the heater HTR (heating control for aerosol generation and heating control for temperature detection). When the operation mode of the inhaler 100 is switched to the heating mode, the inhaler 100 starts heating control of the heater HTR.

[0044] The heating end mode is a mode in which an end process of the heating control of the heater HTR (such as a process of storing a heating history) is executed. When the time of energization of the heater HTR or the number of inhalations by the user reaches an upper limit or the slider 119 is closed while the inhaler 100 is operating in the heating mode, the inhaler 100 switches the operation mode to the heating end mode, and when the end process ends, the inhaler 100 switches the operation mode to the active mode. When the inhaler 100 is connected to a USB while operating in the heating mode, the inhaler 100 switches the operation mode to the heating end mode, and when the end process ends, the inhaler 100 switches the operation mode to the charging mode. As shown in FIG. 9, in this case, the operation mode may be switched to the active mode before switching the operation mode to the charging mode. In other words, when the inhaler 100 is connected to a USB while operating in the heating mode, the operation mode may be switched in the order of the heating end mode, the active mode, and the charging mode.

[0045] The charging mode is a mode in which the power source BAT is charged by power supplied from an external power source connected to the receptacle RCP. When the inhaler 100 is operating in the sleep mode or active mode and an external power source is connected to the receptacle RCP (USB connection), the inhaler 100 switches the operation mode to the charging mode. When the inhaler 100 is operating in the charging mode and charging of the power source BAT is completed or the connection between the receptacle RCP and the external power source is released, the inhaler 100 switches the operation mode to the sleep mode.

[0046] <Outline of the internal unit circuit> Fig. 10 is a diagram showing a schematic configuration of an electric circuit of the internal unit 140. Note that Fig. 10 shows only main elements and ICs.

[0047] The wiring shown by the thick solid line in FIG. 10 is wiring (connected to a ground provided in the internal unit 140) that has the same potential as the reference potential (ground potential) of the internal unit 140, and this wiring will be referred to as a ground line below. In FIG. 10, an electronic component in which multiple circuit elements are chipped is shown as a rectangle, and the symbols of various terminals are written inside the rectangle. The power supply terminal VCC and the power supply terminal VDD mounted on the chip respectively indicate power supply terminals on the high potential side. The power supply terminal VSS and the ground terminal GND mounted on the chip respectively indicate power supply terminals on the low potential side (reference potential side). In the electronic component formed on a chip, the difference between the potential of the power supply terminal on the high potential side and the potential of the power supply terminal on the low potential side becomes the power supply voltage. The electronic component formed on a chip executes various functions using this power supply voltage.

[0048] The MCU-mounted board 161 is provided with, as main electronic components, an MCU 1 that controls the entire inhaler 100, a charging IC 2 that controls charging of the power supply BAT, a load switch (hereinafter, LSW) 3 that is composed of a combination of a capacitor, a resistor, a transistor, etc., and a voltage divider circuit Pc for detecting USB connection.

[0049] The ground terminals GND of the charging IC2 and the LSW3 are connected to the ground line.

[0050] The LED mounting board 163 is provided with, as main electronic components, a Hall IC 13 including a Hall element constituting a panel detection sensor, LEDs L1 to L8, an operation switch OPS, and a communication IC 15. The communication IC 15 is a communication module for communicating with electronic devices such as a smartphone. A power supply terminal VSS of the Hall IC 13 and a ground terminal GND of the communication IC 15 are each connected to a ground line. The communication IC 15 and the MCU 1 are configured to be able to communicate with each other through a communication line LN. One end of the operation switch OPS is connected to the ground line, and the other end of the operation switch OPS is connected to a terminal P4 of the MCU 1.

[0051] The receptacle mounting board 162 is provided with, as its main electronic components, a power connector electrically connected to a power source BAT (the figure shows the power source BAT connected to this power connector), a step-up DC / DC converter 9 (the figure shows step-up DC / DC9), a protection IC 10, an overvoltage protection IC 11, a receptacle RCP, switches S3 and S4 composed of MOSFETs, an operational amplifier OP1, and a pair (positive and negative) heater connectors Cn electrically connected to the heater HTR.

[0052] The two ground terminals GND of the receptacle RCP, the ground terminal GND of the step-up DC / DC converter 9, the power supply terminal VSS of the protection IC 10, the ground terminal GND of the overvoltage protection IC 11, and the negative power supply terminal of the operational amplifier OP1 are each connected to a ground line.

[0053] The Hall IC mounting board 164 is provided with a Hall IC 14 including a Hall element that constitutes a cover position sensor. A power supply terminal VSS of the Hall IC 14 is connected to the ground line. An output terminal OUT of the Hall IC 14 is connected to a terminal P8 of the MCU 1. The MCU 1 detects the opening and closing of the slider 119 based on a signal input to the terminal P8.

[0054] <Details of the internal unit circuit> The connections of the electronic components will be described below with reference to FIG.

[0055] Two power input terminals V of the receptacle RCP BUS is connected to the input terminal IN of the overvoltage protection IC 11 via a protection element such as a fuse Fs, which will be described later. When a USB plug is connected to the receptacle RCP and the USB cable including the USB plug is connected to an external power supply, the two power supply input terminals V BUS to USB voltage V USB is supplied.

[0056] One end of a voltage divider circuit Pa, which is a series circuit of two resistors, is connected to the input terminal IN of the overvoltage protection IC11. The other end of the voltage divider circuit Pa is connected to the ground line. The connection point of the two resistors that make up the voltage divider circuit Pa is connected to the voltage detection terminal OVLo of the overvoltage protection IC11. When the voltage input to the voltage detection terminal OVLo of the overvoltage protection IC11 is below a threshold, the overvoltage protection IC11 outputs the voltage input to the input terminal IN from the output terminal OUT. When the voltage input to the voltage detection terminal OVLo becomes equal to or higher than the threshold (overvoltage), the overvoltage protection IC11 stops the voltage output from the output terminal OUT (cuts off the electrical connection between the LSW3 and the receptacle RCP) to protect electronic components downstream of the overvoltage protection IC11. The output terminal OUT of the overvoltage protection IC11 is connected to the input terminal VIN of the LSW3 and one end of a voltage divider circuit Pc (a series circuit of two resistors) connected to the MCU1. The other end of the voltage divider circuit Pc is connected to the ground line. The connection point of the two resistors that make up the voltage divider circuit Pc is connected to a terminal P17 of the MCU1.

[0057] One end of a voltage divider circuit Pf consisting of a series circuit of two resistors is connected to the input terminal VIN of the LSW3. The other end of the voltage divider circuit Pf is connected to the ground line. The connection point of the two resistors constituting the voltage divider circuit Pf is connected to the control terminal ON of the LSW3. The collector terminal of the bipolar transistor S2 is connected to the control terminal ON of the LSW3. The emitter terminal of the bipolar transistor S2 is connected to the ground line. The base terminal of the bipolar transistor S2 is connected to the terminal P19 of the MCU1. When the signal input to the control terminal ON of the LSW3 becomes high level, the LSW3 outputs the voltage input to the input terminal VIN from the output terminal VOUT. The output terminal VOUT of the LSW3 is connected to the input terminal VBUS of the charging IC2 and the anodes of the LEDs L1 to L8.

[0058] While the USB connection is not established, the MCU 1 turns on the bipolar transistor S2, which connects the control terminal ON of the LSW3 to the ground line via the bipolar transistor S2, so that a low-level signal is input to the control terminal ON of the LSW3.

[0059] The bipolar transistor S2 connected to the LSW3 is turned off by the MCU1 when the USB connection is established. When the bipolar transistor S2 is turned off, the USB voltage V USB is input to the control terminal ON of LSW3. Therefore, when the USB connection is established and the bipolar transistor S2 is turned off, a high-level signal is input to the control terminal ON of LSW3. As a result, LSW3 receives the USB voltage V USB is output from the output terminal VOUT. Note that even if the USB connection is made with the bipolar transistor S2 not turned off, the control terminal ON of LSW3 is connected to the ground line via the bipolar transistor S2, so a low-level signal continues to be input to the control terminal ON of LSW3 unless the MCU1 turns off the bipolar transistor S2.

[0060] The positive terminal of the power supply BAT is connected to the power supply terminal VDD of the protection IC 10, the input terminal VIN of the step-up DC / DC converter 9, and the charging terminal bat of the charging IC 2. Therefore, the power supply voltage V of the power supply BAT BAT is supplied to protection IC10, charging IC2, and step-up DC / DC converter 9. A resistor Ra, a switch Sa configured with a MOSFET, and a switch Sb configured with a MOSFET are connected in series to the negative terminal of power supply BAT, in this order. A current detection terminal CS of protection IC10 is connected to the connection point between resistor Ra and switch Sa. The control terminals of switch Sa and switch Sb are each connected to protection IC10.

[0061] The protection IC10 obtains the current value flowing through the resistor Ra when the power supply BAT is charged or discharged from the voltage input to the current detection terminal CS, and when this current value becomes excessive (in the case of overcurrent), it controls the opening and closing of the switches Sa and Sb to stop charging or discharging the power supply BAT, thereby protecting the power supply BAT. More specifically, when the protection IC10 obtains an excessive current value when charging the power supply BAT, it turns off the switch Sb to stop charging the power supply BAT. When the protection IC10 obtains an excessive current value when discharging the power supply BAT, it turns off the switch Sa to stop discharging the power supply BAT. In addition, when the voltage value of the power supply BAT becomes abnormal (in the case of overcharge or overvoltage) from the voltage input to the power supply terminal VDD, the protection IC10 controls the opening and closing of the switches Sa and Sb to stop charging or discharging the power supply BAT, thereby protecting the power supply BAT. More specifically, when the protection IC 10 detects overcharging of the power supply BAT, it stops charging of the power supply BAT by turning off the switch Sb. When the protection IC 10 detects overdischarging of the power supply BAT, it stops discharging of the power supply BAT by turning off the switch Sa.

[0062] One end of a reactor Lc is connected to the switching terminal SW of the boost DC / DC converter 9. The other end of the reactor Lc is connected to the input terminal VIN of the boost DC / DC converter 9. The boost DC / DC converter 9 boosts the input voltage by controlling the on / off of an internal transistor connected to the switching terminal SW, and outputs the boosted voltage from the output terminal VOUT. The input terminal VIN of the boost DC / DC converter 9 constitutes a high-potential power supply terminal of the boost DC / DC converter 9. The boost DC / DC converter 9 performs a boost operation when a signal input to an enable terminal EN is at a high level. In a state where the device is connected to the USB, the signal input to the enable terminal EN of the boost DC / DC converter 9 may be controlled to a low level by the MCU 1. Alternatively, in a state where the device is connected to the USB, the MCU 1 may not control the signal input to the enable terminal EN of the boost DC / DC converter 9, thereby making the potential of the enable terminal EN indefinite.

[0063] The output terminal VOUT of the step-up DC / DC converter 9 is connected to the source terminal of a switch S4 configured by a P-channel MOSFET. The gate terminal of the switch S4 is connected to a terminal P15 of the MCU1. The drain terminal of the switch S4 is connected to one end of a resistor Rs. The other end of the resistor Rs is connected to a positive-side heater connector Cn connected to one end of the heater HTR. A voltage divider circuit Pb consisting of two resistors is connected to the connection point between the switch S4 and the resistor Rs. The connection point between the two resistors that make up the voltage divider circuit Pb is connected to a terminal P18 of the MCU1. The connection point between the switch S4 and the resistor Rs is further connected to the positive power supply terminal of the operational amplifier OP1.

[0064] The source terminal of the switch S3, which is configured by a P-channel MOSFET, is connected to the connection line between the output terminal VOUT of the step-up DC / DC converter 9 and the source terminal of the switch S4. The gate terminal of the switch S3 is connected to the terminal P16 of the MCU1. The drain terminal of the switch S3 is connected to the connection line between the resistor Rs and the positive electrode side heater connector Cn. In this way, a circuit including the switch S3 and a circuit including the switch S4 and the resistor Rs are connected in parallel between the output terminal VOUT of the step-up DC / DC converter 9 and the positive electrode side of the heater connector Cn. The circuit including the switch S3 does not have a resistor, and therefore has a lower resistance than the circuit including the switch S4 and the resistor Rs.

[0065] An enable terminal EN of the step-up DC / DC converter 9 is connected to a terminal P14 of the MCU1.

[0066] The non-inverting input terminal of the operational amplifier OP1 is connected to the connection line between the resistor Rs and the positive heater connector Cn. The inverting input terminal of the operational amplifier OP1 is connected to the negative heater connector Cn, which is connected to the other end of the heater HTR, and to the ground line. One end of the resistor R4 is connected to the output terminal of the operational amplifier OP1. The other end of the resistor R4 is connected to the terminal P9 of the MCU1.

[0067] The input terminal VBUS of the charging IC2 is connected to the anodes of the LEDs L1 to L8. The cathodes of the LEDs L1 to L8 are connected to the control terminals PD1 to PD8 of the MCU1 via resistors for current limiting. In other words, the LEDs L1 to L8 are connected in parallel to the input terminal VBUS. The LEDs L1 to L8 are connected to the USB voltage V USBand the voltage supplied from the power supply BAT via the charging IC2. The MCU1 has built-in transistors (switching elements) connected to each of the control terminals PD1 to PD8 and to the ground terminal GND. The MCU1 turns on the transistor connected to the control terminal PD1 to pass electricity through the LED L1, turning it on, and turns off the transistor connected to the control terminal PD1 to turn off the LED L1. The brightness and light emission pattern of the LED L1 can be dynamically controlled by quickly switching the transistor connected to the control terminal PD1 on and off. The lighting of the LEDs L2 to L8 is similarly controlled by the MCU1.

[0068] The charging IC2 detects the USB voltage V USB The charging IC2 acquires the charging current and charging voltage of the power supply BAT from terminals and wiring (not shown), and controls charging of the power supply BAT (controls the power supply from the charging terminal bat to the power supply BAT) based on these.

[0069] The charging IC2 also BAT Equipped with power pass function and OTG function. BAT The power path function is to protect the power supply voltage V BAT The OTG function outputs the system power supply voltage Vcc0, which is approximately equal to the system power supply voltage Vcc0 input to the charging terminal bat, from the output terminal SYS. BAT The OTG function of the charging IC2 is controlled by the MCU1 through serial communication using the communication line LN. In the OTG function, the power supply voltage Vcc4 input to the charging terminal bat is boosted and output from the input terminal VBUS. BAT may be output directly from the input terminal VBUS. In this case, the power supply voltage V BATand system power supply voltage Vcc4 are approximately the same. Note that although serial communication requires multiple signal lines, such as a data line for data transmission and a clock line for synchronization, for the sake of simplicity only one signal line is shown in Figure 10-16.

[0070] The output terminal SYS of the charging IC2 is connected to the power supply terminal VDD of the MCU1, the power supply terminal VDD of the Hall IC 13, the power supply terminal VCC of the communication IC 15, the power supply terminal VDD of the Hall IC 14, and a series circuit (series circuit of a resistor and a capacitor) connected to the operation switch OPS. The charge enable terminal CE(￣) of the charging IC2 is connected to terminal P22 of the MCU1 via a resistor. Note that a voltage regulator may be connected to the output terminal SYS of the charging IC2 to stabilize the voltage supplied to these power supply terminals.

[0071] The output terminal OUT of the Hall IC 13 is connected to the terminal P3 of the MCU 1. When the outer panel 115 is removed, a low-level signal is output from the output terminal OUT of the Hall IC 13. The MCU 1 determines whether or not the outer panel 115 is attached based on the signal input to the terminal P3.

[0072] The LED mounting board 163 is provided with a series circuit (series circuit of resistor and capacitor) connected to the operation switch OPS. This series circuit is connected to a power line that connects the output terminal SYS of the charging IC2 with the power terminal VDD of the MCU1, the power terminal VDD of the Hall IC 13, the power terminal VDD of the Hall IC 14, and the power terminal VCC of the communication IC 15. The connection point of the resistor and the capacitor of this series circuit is connected to the terminal P4 of the MCU1 and the operation switch OPS. When the operation switch OPS is not pressed, the operation switch OPS is not conductive, and the signal input to the terminal P4 of the MCU1 becomes high level due to the voltage output from the output terminal SYS of the charging IC2. When the operation switch OPS is pressed and becomes conductive, the signal input to the terminal P4 of the MCU1 becomes low level because it is connected to the ground line. The MCU1 detects the operation of the operation switch OPS by the signal input to the terminal P4.

[0073] <Operation of the suction device in each operation mode> Hereinafter, the operation of the electric circuit shown in FIG. 10 will be described with reference to FIGS. 11 to 16. FIG. 11 is a diagram for explaining the operation of the electric circuit in a sleep mode. FIG. 12 is a diagram for explaining the operation of the electric circuit in an active mode. FIG. 13 is a diagram for explaining the operation of the electric circuit in a heating initial setting mode. FIG. 14 is a diagram for explaining the operation of the electric circuit when the heater HTR is heated in the heating mode. FIG. 15 is a diagram for explaining the operation of the electric circuit when the temperature of the heater HTR is detected in the heating mode. FIG. 16 is a diagram for explaining the operation of the electric circuit in a charging mode. In each of FIGS. 11 to 16, among the terminals of the chipped electronic component, the terminals surrounded by a dashed ellipse are connected to the power supply voltage V BAT , USB voltage V USB , and a terminal through which the system power supply voltage or the like is input or output.

[0074] In either operating mode, the power supply voltage V BATis input to the power supply terminal VDD of the protection IC 10, the input terminal VIN of the step-up DC / DC converter 9, and the charging terminal bat of the charging IC 2.

[0075] <Sleep mode: Figure 11> MCU1 detects the V BAT Enable the power path function and disable the OTG and charging functions. Apply the USB voltage V to the input terminal VBUS of the charging IC2. USB When no input is made, the V of charging IC2 BAT The power path function is enabled. The OTG function is disabled because the signal to enable the OTG function from the communication line LN is not output from the MCU1 to the charging IC2. Therefore, the charging IC2 detects the power supply voltage V BAT The system power supply voltage Vcc0 is generated from the output terminal SYS and is output from the output terminal SYS. The system power supply voltage Vcc0 output from the output terminal SYS is input to the power supply terminal VDD of the MCU1, the power supply terminal VDD of the Hall IC 13, the power supply terminal VCC of the communication IC 15, and the power supply terminal VDD of the Hall IC 14. The system power supply voltage Vcc0 is generated from the power supply input terminal V BUS The USB voltage V USB is set to be lower than

[0076] In this way, in the sleep mode, the OTG function of the charging IC2 is stopped, and therefore the power supply to the LEDs L1 to L8 is stopped.

[0077] <Active mode: Figure 12> When the MCU1 detects that the signal input to the terminal P8 becomes high level and the slider 119 is opened from the sleep mode state of FIG. 11, the MCU1 enables the OTG function of the charging IC2 via the communication line LN. As a result, the charging IC2 detects the power supply voltage V input from the charging terminal bat. BAT The system power supply voltage Vcc4 obtained by boosting the voltage Vcc4 is output from the input terminal VBUS. The system power supply voltage Vcc4 output from the input terminal VBUS is supplied to the LEDs L1 to L8.

[0078] <Heating initial setting mode: Figure 13> When the signal input to terminal P4 becomes low level (the operation switch OPS is pressed) from the state in FIG. 12, the MCU 1 performs various settings required for heating, and then inputs a high-level enable signal from terminal P14 to the enable terminal EN of the step-up DC / DC converter 9. This causes the step-up DC / DC converter 9 to BAT The drive voltage V obtained by boosting bst is output from the output terminal VOUT. bst is supplied to the switches S3 and S4. In this state, the switches S3 and S4 are turned off. Then, the mode shifts to the heating mode.

[0079] <Heater heating in heating mode: Figure 14> 13, the MCU1 starts the switching control of the switch S3 connected to the terminal P16 and the switching control of the switch S4 connected to the terminal P15. These switching controls may be started automatically when the above-mentioned heating initial setting mode is completed, or may be started by further pressing of the operation switch OPS. Specifically, as shown in FIG. 14, the MCU1 turns on the switch S3 and turns off the switch S4 to set the driving voltage V bst to the heater HTR to heat the heater HTR for generating an aerosol, and a temperature detection control is performed to detect the temperature of the heater HTR by turning off switch S3 and turning on switch S4 as shown in FIG. 15.

[0080] <Heater temperature detection in heating mode: Figure 15> As shown in Figure 15, during temperature detection control, the drive voltage V bst is input to the positive power supply terminal of the operational amplifier OP1 and also to the voltage divider circuit Pb. The voltage divided by the voltage divider circuit Pb is input to a terminal P18 of the MCU1. The MCU1 obtains the voltage of the positive power supply terminal of the operational amplifier OP1 during temperature detection control based on the voltage input to the terminal P18.

[0081] In addition, during temperature detection control, the drive voltage V bst is supplied to the series circuit of resistor Rs and heater HTR. And this driving voltage V bst The voltage V is divided by resistor Rs and heater HTR. heat is input to the non-inverting input terminal of the operational amplifier OP1. The operational amplifier OP1 is heat The difference between these is amplified and output.

[0082] The output signal of the operational amplifier OP1 is input to a terminal P9 of the MCU 1. The MCU 1 obtains the temperature of the heater HTR based on the signal input to the terminal P9, the voltage of the positive power supply terminal of the operational amplifier OP1 obtained based on the input voltage of the terminal P18, and the known electrical resistance value of the resistor Rs.

[0083] <Charging mode: Figure 16> FIG. 16 shows an example of a case where a USB connection is made in the sleep mode. When a USB connection is made, the USB voltage V USB is input to the input terminal VIN of LSW3 via the overvoltage protection IC11. USB The USB voltage V is also supplied to the voltage divider circuit Pf connected to the input terminal VIN of LSW3. Immediately after the USB connection is made, the bipolar transistor S2 is on, so the signal input to the control terminal ON of LSW3 remains at low level. USB is also supplied to a voltage divider circuit Pc connected to a terminal P17 of the MCU1, and the voltage divided by this voltage divider circuit Pc is input to the terminal P17. The MCU1 detects that a USB connection has been made based on the voltage input to the terminal P17. The voltage divider circuit Pc is configured to make the voltage input to the terminal P17 equal to or lower than the system power supply voltage Vcc0 input to the power supply terminal VDD of the MCU1.

[0084] When the MCU1 detects that the USB connection has been established, it turns off the bipolar transistor S2 connected to the terminal P19. When a low-level signal is input to the gate terminal of the bipolar transistor S2, the USB voltage V USB is input to the control terminal ON of LSW3. As a result, a high-level signal is input to the control terminal ON of LSW3, and LSW3 is turned on at the USB voltage V USB is output from the output terminal VOUT. The USB voltage V USB is input to the input terminal VBUS of the charging IC2. Also, the USB voltage V USB is supplied as it is to the LEDs L1 to L8 as the system power supply voltage Vcc4.

[0085] When the MCU1 detects that the USB connection has been established, it also outputs a low-level enable signal from the terminal P22 to the charging enable terminal CE(￣) of the charging IC2. This causes the charging IC2 to enable the charging function of the power supply BAT and increase the USB voltage V USB The MCU1 starts charging the power supply BAT by the USB. At this time, the MCU1 does not heat the heater HTR for generating aerosol, keeping the switches S3 and S4 off. In other words, when the MCU1 detects that a USB connection has been made based on the voltage input to the terminal P17, it prohibits the supply of power from the power supply BAT to the heater connector Cn. This makes it possible to avoid power consumption from the power supply BAT during charging.

[0086] <Receptacle> As shown in Figures 10 to 17, the receptacle RCP has a number of pins (terminals) that are electrically connected to the pins of the inserted plug. Specifically, the receptacle RCP has a pair of GND pins ("GND" in the figures, hereinafter also referred to as a GND pin pair), a pair of V BUS Pin (see “V BUS ”, hereafter V BUSThe receptacle RCP includes a pair of pins, a CC1 pin ("CC1" in the figure), a CC2 pin ("CC2" in the figure), a pair of D- pins ("D-" in the figure, hereinafter also referred to as a D- pin pair), a pair of D+ pins ("D+" in the figure, hereinafter also referred to as a D+ pin pair), an SBU1 pin ("SBU1" in the figure), and an SBU2 pin ("SBU2" in the figure). Note that in this embodiment, only the main pins of the receptacle RCP are shown. The roles of these pins will be described later.

[0087] <Protection components for receptacles> 17 is a diagram showing a power supply line PL and data lines DL1 to DL4 extending from a receptacle RCP, and protection components for the receptacle RCP. Note that the protection components are a concept that includes a protection element (element component) and a protection IC (integrated circuit).

[0088] The GND pin pair of the receptacle RCP is grounded by the ground line. BUS The pin pair receives power input to the inhaler 100 from a plug of an external power source inserted into the receptacle RCP. For example, when a plug is inserted into the receptacle RCP, V BUS A predetermined USB bus power is supplied to the inhaler 100 through the pin pair. In addition, power according to USB PD (USB Power Delivery) may be supplied to the inhaler 100 from a plug of an external power source inserted into the receptacle RCP. BUS The voltage applied between the pin pair and the GND pin pair of the receptacle RCP is used to charge the power supply BAT and operate the aspirator 100, so the V BUS The pin pair functions as a power terminal. Therefore, the V BUS The line connected to the pin pair is called the power line PL.

[0089] V BUSThe pin pair is connected to the IN pin of the overvoltage protection IC 11 via a power supply line PL. The power supply line PL is further connected from the OUT pin of the overvoltage protection IC 11 to the VIN pin of the LSW 3 via a flexible wiring board 165. BUS A power supply line PL between the pin pair and the overvoltage protection IC 11 is provided with a number of protection components. Specifically, the power supply line PL includes a fuse Fs and a ferrite bead Fb. BUS Between the pin pair and the overvoltage protection IC11, V BUS They are arranged in this order from the pin pair side. Furthermore, the power supply line PL is connected to the ground line via an EMI (Electro Magnetic Interference) elimination filter 200, an ESD (Electro Static Discharge) suppressor 202, and capacitors 203 and 204 on the overvoltage protection IC 11 side of the ferrite bead Fb. The EMI elimination filter 200 is mainly used to eliminate (remove) electromagnetic interference. The ESD suppressor 202 is mainly used to eliminate (remove) electrostatic discharge and surges. Hereinafter, the overvoltage protection IC 11, fuse Fs, ferrite bead Fb, EMI elimination filter 200, ESD suppressor 202, and capacitors 203 and 204 provided on the power supply line PL may be referred to as power supply line protection components 205.

[0090] The fuse Fs is an ungrounded element that cuts off the circuit when a current greater than the rated current flows through the power line PL. An ungrounded element is an element whose both ends are not directly connected to the ground line. The fuse Fs may be a power fuse that detects a current greater than the rated current from power, or a temperature fuse that detects a current greater than the rated current from temperature. The ferrite bead Fb is a type of inductor and is an ungrounded element that converts noise into heat in a specified band. A wound-type inductor may be used instead of the ferrite bead Fb.

[0091] ESD suppressor 202 is an element that has two terminals (electrodes) and has the property that its resistance value drops rapidly when a high voltage is applied between these terminals. ESD suppressor 202 is a grounded element with one end connected to the power supply line PL and the other end connected to the ground line. A grounded element is an element having one end of the element directly connected to the ground line. Therefore, for example, when inserting a plug into a receptacle RCP, these may rub against each other, causing a drop in V BUS Even if static electricity occurs between the pin pairs, the static electricity can be released to the ground line via the ESD suppressor 202 to protect the overvoltage protection IC 11.

[0092] Capacitors CD1 and CD2 smooth the ripple components (pulsating components) contained in the input voltage by utilizing the charging and discharging action of the capacitors, and stabilize the output voltage. Capacitors CD1 and CD2 are ground elements, with one end connected to the power supply line PL and the other end connected to the ground line. Therefore, V BUS Even if noise or surges occur on the pin pair, the capacitors CD1 and CD2 can protect the overvoltage protection IC11 from the noise or surges.

[0093] The EMI suppression filter 200 is a grounding element in which one end of a parallel circuit in which an ESD suppressor and a capacitor are connected in parallel is connected to the power supply line PL, and the other end is connected to the ground line. Therefore, for example, when inserting a plug into a receptacle RCP, the two rub against each other, causing a voltage drop V BUS Even if noise that could cause electromagnetic interference occurs in the pin pair, the noise can be dissipated to the ground line via an EMI suppression filter or trapped in a capacitor, protecting the overvoltage protection IC 11.

[0094] Of MCU-mounted board 161 on which MCU 1 and charging IC 2 are mounted and receptacle-mounted board 162 on which receptacle RCP is mounted, power line protection component 205 is mounted only on receptacle-mounted board 162. This allows noise and surges to be sufficiently removed from the power supplied from an external power source by power line protection component 205 before the power reaches MCU-mounted board 161, thereby protecting MCU-mounted board 161 and MCU 1 and charging IC 2 mounted on MCU-mounted board 161. The specific location of power line protection component 205 will be described later.

[0095] In this embodiment, the overvoltage protection IC 11, the fuse Fs, the ferrite bead Fb, the EMI suppression filter 200, the ESD suppressor 202, and the capacitors 203 and 204 are exemplified as the power line protection components 205, but the type and number of the power line protection components can be set arbitrarily. It is preferable that the power line protection components 205 include both a grounded element, which is an element connected to the ground line, and an ungrounded element, which is not connected to the ground line. By arranging both a grounded terminal and an ungrounded terminal on the power line PL through which a large current flows, thorough protection can be achieved.

[0096] In addition, the order of the power line protection components can be set arbitrarily. BUS By arranging the pin pair, the non-grounded elements (fuse Fs, ferrite bead Fb), the grounded elements (EMI suppression filter 200, ESD suppressor 202, capacitors 203 and 204), and the input terminal VBUS of the charging IC 2 in that order, noise that is released to the ground to which other electronic components are connected can be reduced in advance by the non-grounded elements, so that the inhaler 100 operates stably.

[0097] Also, some of the power line protection components 205 may be arranged on the MCU mounted board 161, but it is preferable that the number of power line protection components 205 arranged on the receptacle mounted board 162 is greater than the number of power line protection components 205 arranged on the MCU mounted board 161. This also makes it possible to protect the MCU mounted board 161 and the charging IC 2 arranged on the MCU mounted board 161.

[0098] The CC1 and CC2 pins of the receptacle RCP are configuration channel pins that are used to detect the up-down direction of the plug inserted into the receptacle RCP. In other words, the CC1 and CC2 pins have the nature of data terminals.

[0099] The D- and D+ pin pairs of the receptacle RCP are used to transfer data with an external power source via the plug of the external power source inserted into the receptacle RCP. In other words, the D- and D+ pins have the nature of data terminals.

[0100] The CC1 pin, CC2 pin, D- pin pair, and D+ pin pair of the receptacle RCP are connected to the MCU1 via the data lines DL1 to DL4, respectively. The data lines DL1 to DL4 are provided with protective components, respectively. These protective components preferably include only either non-grounded elements or grounded elements, and more preferably only grounded elements. By limiting the number of protective elements in the data lines DL1 to DL4 through which a small current flows, it is possible to stabilize the operation of the inhaler 100 while suppressing an increase in the cost and size of the inhaler 100. In particular, by providing the data lines DL1 to DL4 with grounded elements that allow noise and the like to escape to the ground, it is possible to effectively protect the inhaler 100 with a small number of protective elements.

[0101] To explain this embodiment in detail, one end of an EMI suppression filter 206 is connected to the data line DL1 of the CC1 pin, one end of an EMI suppression filter 208 is connected to the data line DL2 of the CC2 pin, one end of an ESD suppressor 210 is connected to the data line DL3 of the D- pin pair, one end of an ESD suppressor 212 is connected to the data line DL4 of the D+ pin pair, and the other ends of the EMI suppression filters 206, 208 and the ESD suppressors 210, 212 are connected to a ground line. Therefore, even if static electricity or noise is generated in these pins due to friction between the pins when inserting a plug into the receptacle RCP, for example, the static electricity or noise can be released to the ground line via the EMI suppression filters 206, 208 or the ESD suppressors 210, 212. This makes it possible to protect the MCU1 and suppress malfunction of the MCU1. Hereinafter, the EMI filters 206, 208 and the ESD suppressors 210, 212 provided on the data lines DL1 to L4 may be referred to as a data line protection component 215.

[0102] Of MCU mounted board 161 and receptacle mounted board 162, data line protection component 215 is disposed only on receptacle mounted board 162. As a result, noise is sufficiently removed from the power supplied from an external power source by data line protection component 215 before the power reaches MCU mounted board 161, so that MCU mounted board 161 and MCU 1 disposed on MCU mounted board 161 can be protected.

[0103] Also, some of the data line protection components 215 may be arranged on the MCU mounted board 161, but it is preferable that the number of data line protection components 215 arranged on the receptacle mounted board 162 is greater than the number of data line protection components 215 arranged on the MCU mounted board 161. This also makes it possible to protect the MCU mounted board 161 and the charging IC 2 arranged on the MCU mounted board 161.

[0104] According to the present embodiment, of MCU mounted board 161 and receptacle mounted board 162, power line protection component 205 and data line protection component 215 are arranged only on receptacle mounted board 162. Therefore, noise and surges are sufficiently removed from the power supplied from the external power source by power line protection component 205 and data line protection component 215 before the power reaches MCU mounted board 161, so that MCU mounted board 161 and charging IC 2 arranged on MCU mounted board 161 can be protected.

[0105] In this embodiment, the EMI removal filters 206, 208 and the ESD suppressors 210, 212 are exemplified as the data line protection component 215, but the type and number of the data line protection components can be set arbitrarily. In order to more appropriately protect the data lines DL1 to L4, electronic components other than the EMI removal filters 206, 208 and the ESD suppressors 210, 212 may be used for the data line protection component 215.

[0106] The data line protection component 215 may include the same protection element as the power line protection component 205. By using a common protection element for the power line PL and the data lines DL1 to DL4, the procurement cost of this protection element can be reduced, and the cost of the aspirator 100 can be reduced. On the other hand, the data line protection component 215 does not need to include the same protection element as the power line protection component 205. Since appropriate protection elements can be connected to the power line PL and the data lines DL1 to DL4, respectively, the operation of the aspirator 100 can be made more stable.

[0107] In this embodiment, seven components are provided as the power line protection components 205, namely, the overvoltage protection IC 11, the fuse Fs, the ferrite bead Fb, the EMI elimination filter 200, the ESD suppressor 202, and the capacitors 203 and 204, and four components are provided as the data line protection components 215, namely, the EMI elimination filters 206 and 208, and the ESD suppressors 210 and 212. As described above, the number and types of the protection components constituting the power line protection components 205 and the number and types of the protection components constituting the data line protection components 215 are not limited to these, but it is preferable that the number of the power line protection components 205 is greater than the number of the data line protection components 215. By arranging more protection elements on the line to which a larger current is supplied, the operation of the aspirator 100 can be stabilized while suppressing an increase in the cost and size of the aspirator 100.

[0108] <Detailed explanation of the board> Here, the arrangement of ICs and elements mounted on MCU mounting board 161 and receptacle mounting board 162 will be described.

[0109] 18 is a diagram showing main surface 162a of receptacle mounting board 162. On main surface 162a of receptacle mounting board 162 extending in the vertical direction, heater connector Cn is arranged on the upper side, receptacle RCP is arranged at the lower end, and reactor Lc of step-up DC / DC converter 9 is arranged between heater connector Cn and receptacle RCP. Between receptacle RCP and reactor Lc and near receptacle RCP, EMI suppression filter 208 arranged on data line DL2 of CC2 pin, ESD suppressor 210 arranged on data line DL3 of the D- pin pair, and ESD suppressor 212 arranged on data line DL4 of the D+ pin pair are arranged. Since data line protection component 215 is disposed on main surface 162a of receptacle mounting board 162, the board area can be effectively utilized and an increase in the size of receptacle mounting board 162 can be suppressed. This allows the cost and size of aspirator 100 to be reduced.

[0110] Further, near the receptacle RCP, a positive battery connector 222 (hereinafter, positive battery connector 222) is disposed on the right side, and an opening 176 for fixing a spacer 173 is disposed on the left side, so as to sandwich these data line protection components 215 in the left-right direction. Furthermore, a power supply temperature detection connector 234 connected to a negative battery connector 224 (hereinafter, negative battery connector 224) and a thermistor T1 constituting a power supply temperature sensor is disposed on the left side of the reactor Lc of the step-up DC / DC converter 9, and a switch S4 for detecting the temperature of the heater HTR is disposed on the opposite side in the left-right direction to the negative battery connector 224. A positive power supply bus bar 236 (see FIGS. 7 and 8) extending from the positive terminal of the power supply BAT is connected to the positive battery connector 222, and a negative power supply bus bar 238 (see FIGS. 7 and 8) extending from the negative terminal of the power supply BAT is connected to the negative battery connector 224.

[0111] Opening 176 of receptacle mounting board 162 to which spacer 173 is fixed is provided at a position close to receptacle RCP arranged at the lower end, in other words, closer to the lower end than the upper end with respect to the center. There is a risk of noise being generated near the path through which power supplied from an external power source passes due to this current, but by providing spacer 173, which is not affected by noise, near this path, the board area of ​​receptacle mounting board 162 can be used effectively.

[0112] Furthermore, the positive battery connector 222 that electrically connects the power source BAT and the receptacle mounting board 162 is provided at a position close to the receptacle RCP located at the lower end, in other words, at a position closer to the lower end than the upper end with respect to the center. The positive battery connector 222, which is a conductor, is affected by noise to some extent, but since the current value passing through the positive battery connector 222 is large, the effect of noise is minor, so by providing the positive battery connector 222 near this path, the board area of ​​the receptacle RCP can be effectively utilized. With these measures, the size of the receptacle mounting board 162 can be prevented from becoming large, so the cost and size of the inhaler 100 can be reduced.

[0113] FIG. 19 is a diagram showing the sub-surface 162b of the receptacle mounting substrate 162. On the sub-surface 162b of the receptacle mounting substrate 162, the power line protection component 205 is disposed below the opening 176. Specifically, the overvoltage protection IC 11, the fuse Fs, the ferrite bead Fb, the EMI removal filter 200, the ESD suppressor 202, and the capacitors 203 and 204 constituting the power line protection component 205 are disposed at the lower end of the sub-surface 162b of the receptacle mounting substrate 162. In this manner, by disposing the power line protection component 205 on the sub-surface 162b opposite to the main surface 162a on which the receptacle RCP is disposed, the substrate area can be utilized more effectively than when the receptacle RCP and the power line protection component 205 are disposed on the same surface, and the size of the receptacle mounting substrate 162 can be prevented from increasing. This allows the cost and size of the aspirator 100 to be reduced.

[0114] These overvoltage protection IC 11, fuse Fs, ferrite bead Fb, EMI suppression filter 200, ESD suppressor 202, and capacitors 203 and 204 are arranged at a position overlapping with receptacle RCP when viewed from a direction perpendicular to the element arrangement surface of receptacle mounting board 162 (front-rear direction), that is, in receptacle projection area 220, which is the portion where receptacle RCP is projected in the front-rear direction. Therefore, V of receptacle RCP BUS The distance between the pin pair and the power line protection component 205 can be shortened to the limit, and the effect of the power before being protected by the power line protection component 205 on other electronic components arranged on the receptacle mounting board 162 can be reduced. This improves the durability of the aspirator 100 and stabilizes its operation. Note that it is not necessary to arrange all of the power line protection component 205 in the receptacle projection area 220, and it is sufficient that at least a part of the power line protection component 205 is arranged in the receptacle projection area 220.

[0115] In addition, an EMI suppression filter 206 constituting a data line protection component 215 is arranged on the right side of the opening 176, and further above that, a protection IC 10, an operational amplifier OP1, a step-up DC / DC converter 9, and a switch S3 for generating an aerosol are arranged.

[0116] As described above, data line protection components 215 (EMI removal filter 208, ESD suppressor 210, and ESD suppressor 212) other than EMI removal filter 206 are disposed on main surface 162a of receptacle mounting board 162. While power line protection components 205 are disposed on sub-surface 162b of receptacle mounting board 162, many data line protection components 215 are disposed on main surface 162a and the mounting surface is changed, thereby making it possible to effectively utilize the board area. This makes it possible to prevent the size of receptacle mounting board 162 from becoming large, and reduces the cost and size of aspirator 100. All data line protection components 215 including EMI removal filter 206 may be disposed together on main surface 162a of receptacle mounting board 162.

[0117] 20 is a diagram showing the main surface 161a of the MCU mounting board 161. On the main surface 161a of the MCU mounting board 161 extending in the vertical direction, the charging IC2 is arranged on the upper side, the MCU1 is arranged on the lower side, and the LSW3 is arranged between the charging IC2 and the MCU1. Further above the charging IC2, a heater temperature detection connector 240 is arranged to which the thermistor T3 constituting the heater temperature sensor is connected via a conductor. An opening 175 for fixing a spacer 173 is arranged diagonally below and to the left of the MCU1. In addition, on the main surface 161a of the MCU mounting board 161, a voltage dividing circuit Pc which is a series circuit of two resistors is arranged between the MCU1 and the right edge of the MCU mounting board 161.

[0118] By disposing the MCU1 and the charging IC2 on the MCU mounting board 161, while disposing the receptacle RCP on the receptacle mounting board 162, the MCU1 and the charging IC2 are separated from the receptacle RCP, and are therefore less susceptible to the effects of static electricity and the like that may enter through the receptacle RCP. This makes it possible to make the operation of the inhaler 100 more stable.

[0119] Furthermore, an LSW3 capable of opening and closing the power line PL and provided between the power line protection component 205 and the input terminal VBUS of the charging IC2 is disposed on the MCU mounted board 161. Therefore, the LSW3 prevents the power supplied from the external power source, from which noise and the like has been removed by the power line protection component 205, from being suddenly supplied to the charging IC2. This prevents an inrush current or short circuit current from being input to the charging IC2, thereby further protecting the charging IC2.

[0120] As mentioned above, LSW3 supplies power to charging IC2 when the signal input to control terminal ON via bipolar transistor S2 connected to terminal P19 of MCU1 becomes high level. In other words, LSW3 does not turn ON automatically, but only turns ON when it receives a command from MCU1. By having MCU1 control LSW3, it is possible to prevent malfunction of LSW3, thereby further protecting charging IC2.

[0121] On the other hand, MCU1 is connected to the power input terminal V BUS Based on the input of the voltage supplied from the power supply BAT to the terminal P17, the MCU 1 controls the supply of power from the power supply BAT to the heater connector Cn. BUS When the voltage supplied from the power supply BAT is input to the terminal P17, the supply of power from the power supply BAT to the heater connector Cn is prohibited. Therefore, the MCU1 protected from the power supplied from the external power supply can execute control based on the detection of the external power supply. This allows the charging control to be executed more reliably, improving the performance of the inhaler 100. In addition, the consumption of power from the power supply BAT during charging can be avoided.

[0122] Moreover, the voltage dividing circuit Pc receives power supplied from an external power source from which noise and the like has been removed by the power line protection component 205. This makes the voltage dividing circuit Pc less susceptible to damage and allows the MCU1 to execute control more reliably, improving the performance of the inhaler 100. The voltage dividing circuit Pc prevents a voltage higher than the system power supply voltage Vcc0 from being input to the MCU1, and allows the inhaler 100 to operate stably.

[0123] The two resistors of the voltage-dividing circuit Pc are disposed between the MCU1 and the right edge, which is the edge of the MCU-mounted substrate 161 closest to the MCU1. Specifically, the two resistors of the voltage-dividing circuit Pc are disposed between the right edge of the MCU-mounted substrate 161 and the terminal P17 of the MCU1. It is not necessary that both of the two resistors of the voltage-dividing circuit Pc are disposed between the right edge, which is the edge of the MCU-mounted substrate 161, and the MCU1, and it is sufficient that at least one of them is disposed. As a result, at least a part of the voltage-dividing circuit Pc serves as a barrier against noise entering from the right edge of the MCU-mounted substrate 161, and the MCU1 is less likely to be damaged or malfunction, so that the inhaler 100 operates stably.

[0124] 21 is a diagram showing the sub-surface 161b of the MCU mounting board 161. On the sub-surface 161b of the MCU mounting board 161, a motor connector 226 to which the vibration motor M is connected via a conductor is arranged above the opening 175, and further above, a case temperature detection connector 228 to which thermistor T4 constituting the case temperature sensor is connected via a conductor, and an intake detection connector 230 to which thermistor T2 constituting the intake sensor is connected via a conductor are arranged.

[0125] Flexible wiring board 165, which electrically connects MCU mounting board 161 and receptacle mounting board 162, connects FPC connection parts 231, 232 of MCU mounting board 161 and receptacle mounting board 162. FPC connection parts 231, 232 are located at the right end parts of MCU mounting board 161 and receptacle mounting board 162, respectively, and in positions extending downward from approximately the center in the vertical direction to the vicinity of openings 175, 176.

[0126] 20, on the MCU-mounted board 161, the LSW3 is disposed closer to the FPC connection part 231 than the charging IC 2. That is, the LSW3 is provided close to the point where power supplied from an external power source is input to the MCU-mounted board 161. This reduces the effect on other elements and ICs disposed on the MCU-mounted board 161 of noise generated when an inrush current, short-circuit current, etc. is reduced by the LSW3, thereby further protecting the MCU-mounted board 161. Note that the LSW3 is preferably disposed closer to the FPC connection part 231 than any of the ICs disposed on the MCU-mounted board 161.

[0127] 18, FPC connection portion 232 of receptacle mounting board 162 is provided at a position close to receptacle RCP located at the bottom end, in other words, closer to the bottom end than the top end with respect to the center. This prevents power supplied from an external power source from passing through the entire receptacle mounting board 162, and reduces the effect that noise generated by this current has on other elements and ICs mounted on receptacle mounting board 162.

[0128] Although various embodiments have been described above with reference to the drawings, it goes without saying that the present invention is not limited to such examples. It is clear that a person skilled in the art can come up with various modified or revised examples within the scope of the claims, and it is understood that these also naturally belong to the technical scope of the present invention. Furthermore, the components in the above-mentioned embodiments may be arbitrarily combined within the scope of the invention.

[0129] This specification describes at least the following items. Note that, in parentheses, components corresponding to those in the above-mentioned embodiment are shown, but the present invention is not limited to these.

[0130] (1) Power supply (power supply BAT), A heater connector (heater connector Cn) to which a heater (heater HTR) that consumes power supplied from the power source to heat the aerosol source is connected; A controller (MCU1) configured to be able to control the supply of power from the power source to the heater connector; a charging IC (charging IC2) including an input terminal (input terminal VBUS) and a charging terminal (charging terminal bat) connected to the power supply, and configured to convert power input to the input terminal and output the power from the charging terminal; Power supply terminal (Power supply input terminal V BUS ) and data terminals (CC1 pin, CC2 pin, D- pin, D+ pin), and a receptacle (receptacle RCP) configured to be electrically connectable to an external power source; a power supply line (power supply line PL) connecting the power supply terminal and the input terminal; data lines (data lines DL1 to DL4) connecting the data terminals and the controller; a first protection component (power line protection component 205) provided on the power line; A second protection component (data line protection component 215) provided on the data line, The number of the first protection components is greater than the number of the second protection components. A power supply unit for the aerosol generating device (non-combustion inhaler 100).

[0131] According to (1), since more protective elements are placed on the line to which a larger current is supplied, it is possible to stabilize the operation of the power supply unit of the aerosol generating device while suppressing an increase in cost and size.

[0132] (2) A power supply unit for the aerosol generating device according to (1), With grounds, The first protection component includes grounded elements (an EMI suppression filter 200, an ESD suppressor 202, and capacitors 203 and 204) that are elements connected to the ground, and non-grounded elements (a fuse Fs and a ferrite bead Fb) that are not connected to the ground, The second protection component includes only one of the grounded element and the non-grounded element. Power supply unit for the aerosol generator.

[0133] According to (2), by providing ample protection for the power supply lines through which large currents flow with grounded and non-grounded terminals, while limiting the number of protective elements for the data lines through which small currents flow, it is possible to stabilize the operation of the power supply unit of the aerosol generating device while suppressing the increase in cost and size.

[0134] (3) A power supply unit for the aerosol generating device according to (2), The second protection component includes only the ground element among the ground element and the non-ground element. Power supply unit for the aerosol generator.

[0135] According to (3), by providing a grounding element for the data line that allows noise and other interference to escape to ground, effective protection can be achieved with fewer protective elements. This makes it possible to stabilize the operation of the power supply unit of the aerosol generating device while suppressing increases in cost and size.

[0136] (4) A power supply unit for the aerosol generating device according to (2) or (3), In the power supply line, the power supply terminal, the non-grounded element, the grounded element, and the input terminal are connected in this order. Power supply unit for the aerosol generator.

[0137] According to (4), noise and the like that escapes to the ground to which other electronic components are connected can be reduced in advance by the non-grounded element, so that the power supply unit of the aerosol generation device operates stably.

[0138] (5) A power supply unit for the aerosol generating device according to any one of (1) to (4), The first protection component and the second protection component include the same element. Power supply unit for the aerosol generator.

[0139] According to (5), by using a common protective element for the power supply line and the data line, the procurement cost of this protective element can be reduced, thereby reducing the cost of the power supply unit of the aerosol generating device.

[0140] (6) A power supply unit for the aerosol generating device according to any one of (1) to (4), The first protection component and the second protection component do not include the same element. Power supply unit for the aerosol generator.

[0141] According to (6), suitable protective elements can be connected to the power supply line and data line, respectively, thereby making the operation of the aerosol generating device more stable.

[0142] (7) A power supply unit for the aerosol generating device according to any one of (1) to (6), A first board (MCU mounting board 161), a second substrate (receptacle mounting substrate 162) separate from the first substrate, the controller and the charging IC are disposed on the first substrate; The receptacle is disposed on the second substrate. Power supply unit for the aerosol generator.

[0143] According to (7), by separating the controller and the charging IC from the receptacle, they are less susceptible to static electricity and other influences that may enter through the receptacle. This makes it possible to make the operation of the power supply unit of the aerosol generating device more stable.

[0144] (8) A power supply unit for the aerosol generating device according to (7), the first protection component and the second protection component are disposed only on the second substrate out of the first substrate and the second substrate; Aerosol generator power supply unit

[0145] According to (8), noise is sufficiently removed from the power supplied from the external power source by the first protective component and the second protective component before it reaches the first board on which the controller and charging IC are placed, thereby making the operation of the power supply unit of the aerosol generating device more stable.

[0146] (9) A power supply unit for the aerosol generating device according to either (7) or (8), The second substrate has a main surface (main surface 162a) and a sub-surface (sub-surface 162b) that is the reverse surface of the main surface, The receptacle is disposed on the main surface, The first protective component is disposed on the minor surface. Power supply unit for the aerosol generator.

[0147] According to (9), the board area can be effectively utilized compared to when the receptacle and the first protective component are arranged on the same surface, and the size of the second board can be prevented from increasing. This reduces the cost and size of the power supply unit of the aerosol generating device.

[0148] (10) A power supply unit for the aerosol generating device according to (9), At least a portion of the first protective component is disposed in a region (receptacle projection region 220) where the receptacle is projected from a direction perpendicular to the second substrate. Power supply unit for the aerosol generator.

[0149] According to (10), the distance between the power terminal of the receptacle and the first protective component can be minimized, and the effect of the power before being protected by the first protective component on other electronic components arranged on the second board can be reduced. This improves the durability of the power supply unit of the aerosol generating device and stabilizes its operation.

[0150] (11) A power supply unit for the aerosol generating device according to (9) or (10), The second protective component is disposed on the main surface. Power supply unit for the aerosol generator.

[0151] According to (11), by disposing the second protective component in the empty space on the main surface where the receptacle is disposed, the size of the second substrate can be prevented from increasing, thereby reducing the cost and size of the power supply unit of the aerosol generation device.

[0152] This application is based on a Japanese patent application (Patent Application No. 2021-079876) filed on May 10, 2021, the contents of which are incorporated by reference into this application. [Explanation of symbols]

[0153] 1 MCU (controller) 2 Charging IC 100 Non-combustion inhaler (power supply unit for aerosol generator) 161 MCU mounting board (first board) 162 Receptacle mounting board (second board) 162a Main surface 162b Minor side 205 Power line protection components (first protection components) 215 Data line protection components (secondary protection components) 220 Receptacle projection area CC1 pin (data terminal) CC2 pin (data terminal) D- pin (data terminal) D+ pin (data terminal) DL1 Data Line DL2 Data Line DL3 Data Line DL4 Data Line BAT power supply HTR Heater Cn Heater Connector RCP Receptacle PL power line V BUS Power input terminal (power terminal) VBUS input terminal (input terminal) bat charging terminal Fs Fuse (ungrounded element) Fb Ferrite bead (ungrounded element) 200 EMI suppression filter (grounding element) 202 ESD Suppressor (Grounding Element) 203 Capacitor (ground element) 204 Capacitor (ground element)

Claims

1. Power supply, a heater connector to which a heater that heats an aerosol source with power supplied from the power source is connected; an MCU including a power supply terminal and configured to be able to control the supply of power from the power supply to the heater connector; a charging terminal electrically connectable to an external power source and including a power input terminal; a charging IC including a first terminal connected to the power supply input terminal, a second terminal connected to the power supply, and a third terminal connected to the power supply terminal; a power supply line connecting the power supply input terminal and the first terminal; a first protection component provided on the power supply line and being any one of a fuse, a ferrite bead, and an ESD suppressor; A first substrate; a second substrate separate from the first substrate, the charging IC is disposed on the first substrate, the charging terminal is disposed on the second substrate, the first protection component is disposed only on the second substrate out of the first substrate and the second substrate; Non-combustion aspirator.

2. A non-combustion type suction device as described in claim 1, The MCU includes an input terminal; The MCU, based on the input of the power supplied from the power supply input terminal to the input terminal, configured to control a supply of power from the power source to the heater connector; Non-combustion aspirator.

3. A non-combustion type suction device as described in claim 2, the MCU is configured to prohibit the supply of power from the power supply to the heater connector when power supplied from the power supply input terminal is input to the input terminal; Non-combustion aspirator.

4. A non-combustion type suction device according to any one of claims 1 to 3, The second substrate has a main surface and a sub-surface that is a reverse surface of the main surface, the charging terminal is disposed on the main surface, The first protective component is disposed on the minor surface. Non-combustion aspirator.

5. A non-combustion type suction device as described in claim 4, At least a portion of the first protection component is disposed in a region in which the charging terminal is projected in a direction perpendicular to the second substrate. Non-combustion aspirator.

6. A non-combustion type suction device according to claim 4 or 5, the charging terminal further includes a data terminal; The non-combustion type inhaler comprises: a data line connecting the data terminal and the MCU; A second protection component is provided on the data line, The second protective component is disposed on the main surface. Non-combustion aspirator.

7. A non-combustion type suction device according to any one of claims 1 to 6, The MCU includes an input terminal; a voltage divider circuit provided on the power supply line and including a first resistor and a second resistor connected in series to the first resistor; the input terminal is connected between the first resistor and the second resistor; the voltage divider circuit is disposed only on the first substrate out of the first substrate and the second substrate; Non-combustion aspirator.

8. A non-combustion type inhaler as described in claim 7, a voltage input to the power supply terminal of the MCU is lower than a voltage supplied from the power supply input terminal of the charging terminal; the voltage divider circuit is configured to make the voltage supplied from the power supply input terminal of the charging terminal and input to the input terminal of the MCU equal to or lower than the voltage input to the power supply terminal of the MCU; Non-combustion aspirator.

9. A non-combustion type inhaler according to claim 7 or 8, At least one of the first resistor and the second resistor is disposed between the MCU and an edge of the first substrate to which the MCU is closest. Non-combustion aspirator.

10. A non-combustion type suction device according to any one of claims 1 to 9, the power supply line includes a connection line connecting the first substrate and the second substrate, The connection line includes a flexible wiring board. Non-combustion aspirator.

11. A non-combustion type inhaler as described in claim 10, The second substrate extends in a predetermined direction, The charging terminal is provided at one end in the predetermined direction. Non-combustion aspirator.

12. A non-combustion type inhaler according to claim 10 or 11, a case that accommodates the power supply, the MCU, the power supply line, the first protection component, the first substrate, and the second substrate; a first connector that fixes positions of the first board and the second board inside the case and mechanically connects the first board and the second board, Non-combustion aspirator.

13. A non-combustion type inhaler as described in claim 11, a second connector electrically connecting the power supply and the second board; a portion where the second connector and the second board are connected is closer to the one end in the predetermined direction than to the other end in the predetermined direction; Non-combustion aspirator.

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