Power supply unit for aerosol inhaler

Abstract

A power supply unit for an aerosol inhaler comprises: a power supply capable of supplying power to a load capable of generating aerosol from an aerosol source; and a housing accommodating the power supply, wherein the housing accommodates at least one power receiving coil capable of wirelessly receiving power both when the housing is placed horizontally and when the housing is placed vertically.

Description

Technical Field

[0001] The invention relates to a power supply unit for an aerosol inhaler. Background Art

[0002] A kind of aerosol inhaler capable of wireless charging and a power supply unit for the aerosol inhaler are known (US9901117 B, US 2015 / 0333561 A, JP 5767342 B, JP 6326188 B, JP 2018-126355 A and JP2019-510469 T). The aerosol inhaler and the power supply unit for the aerosol inhaler can be placed in a vertical posture (hereinafter referred to as "vertical placement" as the case may be) on a table at work or at home, can be placed in a horizontal posture (hereinafter referred to as "horizontal placement" as the case may be) in a special room where the aerosol inhaler can be used, or can be placed in a variety of postures. "Vertical" refers to being placed vertically in a substantially vertical direction, and "horizontally" refers to being placed vertically in a substantially horizontal direction.

[0003] In a power supply unit for an aerosol inhaler capable of wireless charging, it is desirable that the power supply can be charged regardless of the posture of the housing. In a prior art power supply unit for an aerosol inhaler, a user needs to be concerned about the orientation of the housing, and there is room for improvement in the convenience of wirelessly charging the power supply.

[0004] An object of the present invention is to provide a power supply unit for an aerosol inhaler, which can improve the convenience of charging the power supply in a wireless manner. Summary of the invention

[0005] According to one aspect of the present invention, a power supply unit for an aerosol inhaler comprises: a power supply capable of supplying power to a load capable of generating an aerosol from an aerosol source; and a housing configured to accommodate the power supply, wherein the housing accommodates at least one power receiving coil capable of receiving power wirelessly both when the housing is placed horizontally and when the housing is placed vertically. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 is a perspective view of an aerosol inhaler equipped with a power supply unit according to an embodiment of the present invention.

[0007] Figure 2 yes Figure 1 A perspective view of a power supply unit of an aerosol inhaler is shown.

[0008] Figure 3 yes Figure 1 A cross-sectional view of the aerosol inhaler shown.

[0009] Figure 4 It is shown Figure 1FIG. 1 is a block diagram showing the configuration of the main components of the power supply unit of the aerosol inhaler.

[0010] Figure 5 It is shown Figure 1 FIG. 1 is a schematic diagram of the circuit configuration of the power supply unit of the aerosol inhaler.

[0011] Fig. 6A It is schematically shown Figure 1 A perspective view of the wireless charging state of the power supply unit of the aerosol inhaler during vertical placement is shown.

[0012] Figure 6B It is schematically shown Figure 1 A perspective view of the wireless charging state of the power supply unit of the aerosol inhaler during horizontal placement is shown.

[0013] Figure 7 It is shown Figure 1 A schematic diagram showing a modification of the circuit configuration of the power supply unit of the aerosol inhaler is shown.

[0014] Figure 8 is a cross-sectional view of an aerosol inhaler according to a second embodiment of the present invention.

[0015] Fig.9A It is schematically shown Figure 8 A perspective view of the wireless charging state of the power supply unit of the aerosol inhaler during vertical placement is shown.

[0016] Fig. 9B It is schematically shown Figure 8 A perspective view of the wireless charging state of the power supply unit of the aerosol inhaler during horizontal placement is shown.

[0017] Fig.10 It is shown Figure 8 A schematic diagram of a portion of a circuit configuration of a power supply unit of an aerosol inhaler is shown.

[0018] Fig.11 It is shown Figure 8 A schematic diagram showing a modification of a part of the circuit configuration of a power supply unit of an aerosol inhaler is shown.

[0019] Fig.12 is a cross-sectional view of an aerosol inhaler according to a third embodiment of the present invention.

[0020] Fig.13A It is schematically shown Fig.12 A perspective view of the wireless charging state of the power supply unit of the aerosol inhaler during vertical placement is shown.

[0021] Fig. 13B It is schematically shown Fig.12A perspective view of the wireless charging state of the power supply unit of the aerosol inhaler during horizontal placement is shown.

[0022] Fig.14 It is shown Fig.12 A schematic diagram of a portion of a circuit configuration of a power supply unit of an aerosol inhaler is shown.

[0023] Fig.15 It is shown Fig.12 A schematic diagram of a first modification of a part of the circuit configuration of a power supply unit of an aerosol inhaler is shown.

[0024] Fig.16 It is shown Fig.12 A schematic diagram of a second modification of a part of the circuit configuration of the power supply unit of the aerosol inhaler is shown. DETAILED DESCRIPTION

[0025] Hereinafter, a power supply unit for an aerosol inhaler and an aerosol inhaler according to each embodiment of the present invention will be described.

[0026] (Aerosol Inhaler)

[0027] The aerosol inhaler 1 is a device for inhaling fragrance without burning, and has a rod shape extending in a predetermined direction (hereinafter referred to as a longitudinal direction A). Figure 1 As shown, the aerosol inhaler 1 is provided in the order of a power supply unit 10, a first cartridge 20, and a second cartridge 30 along the longitudinal direction A. The first cartridge 20 can be attached to and detached from the power supply unit 10, and the second cartridge 30 can be attached to and detached from the first cartridge 20. In other words, the first cartridge 20 and the second cartridge 30 are replaceable.

[0028] <First Embodiment>

[0029] (Power supply unit)

[0030] like Figure 2 and Figure 3 As shown, the power supply unit 10 according to the first embodiment accommodates a power supply 12, a charger 13, a control unit 50, various sensors, etc. in a cylindrical power supply unit case 11.

[0031] The discharge terminal 41 is provided on the top 11a located on one end side (first tube 20 side) in the longitudinal direction A of the power unit housing 11. The discharge terminal 41 is provided to protrude from the upper surface of the top 11a toward the first tube 20 and is configured to be electrically connectable to the load 21 of the first tube 20.

[0032] A gas supply portion 42 for supplying gas to the load 21 of the first tube 20 is provided on an upper surface of the top portion 11 a near the discharge terminal 41 .

[0033] A power receiving coil 43 for wirelessly charging the power supply 12 using an external power source (not shown) and a rectifier 44 for converting AC power received by the power receiving coil 43 into DC power are housed in the bottom 11b located on the other end side of the longitudinal direction A of the power supply unit housing 11 (the side opposite to the first tube 20). The method of wireless power transmission may be an electromagnetic induction method, a magnetic resonance method, a combination of an electromagnetic induction method and a magnetic resonance method, or other methods. In any wireless power transmission method, the power supply unit housing 11 may or may not be in physical contact with the external power source. In this specification, wireless power transmission is regarded as a synonym for contactless power transmission.

[0034] A user-operable operation unit 14 is provided on the side of the top 11a of the power supply unit housing 11. The operation unit 14 includes a push button switch, a touch panel, etc., and is used when the control unit 50 and various sensors are activated or deactivated, which reflects the user's intention.

[0035] The power source 12 is a rechargeable secondary battery, preferably a lithium ion secondary battery. The charger 13 controls the charging power input from the rectifier 44 to the power source 12. The charger 13 is configured by using a charging IC including a DC-DC converter, a voltmeter, an ammeter, a processor, and the like.

[0036] like Figure 4 As shown, the control unit 50 is connected to the charger 13, the operating unit 14, various sensor devices, such as the intake sensor 15 for detecting the inhalation (intake) operation, the voltage sensor 16 for measuring the voltage of the power supply 12, the temperature sensor 17 for detecting the temperature, and the memory 18 for storing the number of inhalation operations or the load power-on time 21. The control unit 50 performs various controls on the aerosol inhaler 1. The intake sensor 15 can be composed of a capacitor microphone, a pressure sensor, etc. Specifically, the control unit 50 is a processor (MCU: microcontroller unit). More specifically, the structure of the processor is a circuit obtained by combining circuit elements such as semiconductor elements.

[0037] (First tube)

[0038] like Figure 3 As shown, the first tube 20 is in a cylindrical tube housing 27, and includes a reservoir 23 for storing an aerosol source 22, an electric load 21 for atomizing the aerosol source 22, a core 24 for drawing the aerosol source from the reservoir 23 to the load 21, an aerosol flow path 25 in which the aerosol generated by the atomization of the aerosol source 22 flows to the second tube 30, and an end cap 26 for accommodating a portion of the second tube 30.

[0039] The reservoir 23 is divided and formed to surround the periphery of the aerosol flow path 25 and store the aerosol source 22. A porous body such as a resin net or cotton can be accommodated in the reservoir 23, and the aerosol source 22 can be impregnated in the porous body. The reservoir 23 can store only the aerosol source 22 without accommodating a porous body such as a resin net or cotton. The aerosol source 22 includes a liquid such as glycerin, propylene glycol, or water.

[0040] The wick 24 is a liquid retaining member that draws the aerosol source 22 from the reservoir 23 to the load 21 using a capillary phenomenon, and is formed of, for example, glass fiber or porous ceramics.

[0041] The load 21 atomizes the aerosol source 22 without burning it using the power supplied by the power source 12 via the discharge terminal 41. The load 21 is formed by an electric heating wire (coil) wound at a predetermined pitch. The load 21 can be any element capable of generating aerosol by atomizing the aerosol source 22, and is, for example, a heating element or an ultrasonic generator. Examples of the heating element include a heating resistor, a ceramic heater, and an induction heating type heater.

[0042] The mist flow path 25 is provided on the downstream side of the load 21 and on the center line L of the power source unit 10 .

[0043] The end cap 26 includes a tube accommodating portion 26 a accommodating a portion of the second tube 30 , and a communication path 26 b allowing the aerosol flow path 25 and the tube accommodating portion 26 a to communicate with each other.

[0044] (Second tube)

[0045] The second tube 30 stores a fragrance source 31. The second tube 30 is detachably accommodated in a tube accommodating portion 26a provided in the end cap 26 of the first tube 20. The end of the second tube 30 on the side opposite to the first tube 20 is an inhalation port 32 for a user. The inhalation port 32 is not limited to being integrally formed with the second tube 30, but may be configured to be attachable to and detachable from the second tube 30. By configuring the inhalation port 32 separately from the power supply unit 10 and the first tube 20 in this manner, the hygiene of the inhalation port 32 may be maintained.

[0046] The second tube 30 imparts flavor to the aerosol by passing the aerosol generated by the load 21 atomizing the aerosol source 22 through the flavor source 31. As a raw material sheet constituting the flavor source 31, shredded tobacco or a molded product obtained by molding the tobacco raw material into particles can be used. The flavor source 31 can be formed of a plant other than tobacco (for example, mint, Chinese herbal medicine, or herbal medicine). The flavor source 31 can have a flavor such as menthol.

[0047] In the aerosol inhaler 1 according to the present embodiment, aerosol with added fragrance can be generated by the aerosol source 22, the fragrance source 31 and the load 21. That is, the aerosol source 22 and the fragrance source 31 can be referred to as an aerosol generating source that generates aerosol.

[0048] In addition to the configuration in which the aerosol source 22 and the fragrance source 31 are separated from each other, a configuration in which the aerosol source 22 and the fragrance source 31 are formed integrally, a configuration in which the fragrance source 31 is omitted and a substance that can be included in the fragrance source 31 is added to the aerosol source 22, or a configuration in which medicines, Chinese herbal medicines, etc. that replace the fragrance source 31 are added to the aerosol source 22 can also be used as the configuration of the aerosol generating source used in the aerosol inhaler 1.

[0049] In the aerosol inhaler 1 configured as described above, Figure 3 As shown by arrow B in FIG. 1 , air flowing in from an air inlet (not shown) provided in the power unit housing 11 passes from the air supply portion 42 through the vicinity of the load 21 of the first tube 20. The load 21 atomizes the aerosol source 22 drawn or moved from the reservoir 23 by the core 24. The aerosol generated by atomization flows through the aerosol flow path 25 together with the air flowing in from the air inlet, and is supplied to the second tube 30 via the communication path 26b. The aerosol supplied to the second tube 30 is given a fragrance by the fragrance source 31 and is supplied to the suction port 32.

[0050] Aerosol inhaler 1 is provided with notification unit 45, notifying various types of information. Notification unit 45 can be composed of a light emitting element, a vibration element or a sound output element. Notification unit 45 can also be a combination of two or more elements of a light emitting element, a vibration element and a sound output element. Notification unit 45 can be arranged in any one of power supply unit 10, first tube 20 and second tube 30, but is preferably arranged in power supply unit 10, so as to shorten the wire from power supply 12. For example, the periphery of operation unit 14 is translucent, and is configured to emit light by a light emitting element such as LED.

[0051] (Circuit)

[0052] Next, we will refer to Figure 5 The circuit of the power supply unit 10 is described.

[0053] The power supply unit 10 includes a power supply 12, a positive electrode side discharge terminal 41a and a negative electrode side discharge terminal 41b constituting a discharge terminal 41, a control unit 50 connected between the positive electrode side discharge terminal 41a and the positive electrode side of the power supply 12 and between the negative electrode side discharge terminal 41b and the negative electrode side of the power supply 12, a wireless charging circuit 46 including a power receiving coil 43 and a rectifier 44, a charger 13 arranged on a power transmission path between the wireless charging circuit 46 and the power supply 12, and a switch 19 arranged on a power transmission path between the power supply 12 and the discharge terminal 41. The switch 19 is composed of, for example, a MOSFET, and is controlled to be turned on and off by the control unit 50 that adjusts a gate voltage.

[0054] (Control Unit)

[0055] like Figure 4 As shown, the control unit 50 includes an aerosol generation request detection unit 51 , a power control unit 53 and a notification control unit 54 .

[0056] The aerosol generation request detection unit 51 detects the aerosol generation request based on the output result of the air intake sensor 15. The air intake sensor 15 is configured to output a value of a pressure change in the power supply unit 10 caused by the user inhaling through the suction port 32. For example, the air intake sensor 15 is a pressure sensor that outputs an output value (e.g., a voltage value or a current value) corresponding to the air pressure that changes due to the flow rate of the air inhaled from the air intake port to the suction port 32 (i.e., the user's blowing operation). The air intake sensor may be configured to determine whether the detected air flow rate or pressure can correspond to the user's blowing operation, and output one of an ON value and an OFF value.

[0057] The notification control unit 54 controls the notification unit 45 to notify various types of information. For example, the notification control unit 54 controls the notification unit 45 to notify the replacement timing of the second tube 30 according to the detection of the replacement timing of the second tube 30. The notification control unit 54 notifies the replacement timing of the second tube 30 based on the number of air blowing operations or the cumulative time of energization of the load 21 stored in the memory 18. The notification control unit 54 can notify not only the replacement timing of the second tube 30 but also the replacement timing of the first tube 20, the replacement timing of the power source 12, the charging timing of the power source 12, and the like.

[0058] When the aerosol generation request detection unit 51 detects the aerosol generation request, the power control unit 53 controls the discharge of the power source 12 via the discharge terminal 41 by turning on or off the switch 19 .

[0059] The power control unit 53 performs control so that the amount of aerosol generated by the atomizing aerosol source of the load 21 falls within a desired range, in other words, the energy supplied from the power source 12 to the load 21 falls within a certain range. Specifically, the power control unit 53 controls the on / off of the switch 19 by, for example, pulse width modulation (PWM) control. Alternatively, the power control unit 53 may control the on / off of the switch 19 by pulse frequency modulation (PFM) control.

[0060] The power control unit 53 may stop the supply of power from the power source 12 to the load 21 when a predetermined period has passed since the start of the supply of power to the load 21. In other words, even in the blowing period in which the user actually performs the blowing operation, when the blowing period exceeds the predetermined period, the power control unit 53 stops the supply of power from the power source 12 to the load 21. In order to reduce the variation in the blowing period of the user, the predetermined period is set. The power control unit 53 controls the duty ratio of the on / off of the switch 19 during one blowing operation according to the amount of electricity stored in the power source 12. For example, the power control unit 53 controls the on time interval (pulse interval) for supplying power from the power source 12 to the load 21, and controls the on time length (pulse width) for supplying power from the power source 12 to the load 21.

[0061] The power control unit 53 detects power received by the power receiving coil 43 from the external power source, and controls charging of the power source 12 via the charger 13 .

[0062] (Wireless Charging Circuit)

[0063] like Figure 5 As shown, the wireless charging circuit 46 includes a power receiving coil 43 , a rectifier 44 , a smoothing capacitor 47 , an AC conductor 48 , and a DC conductor 49 .

[0064] During charging, the power receiving coil 43 is arranged close to the power transmitting coil 61 wirelessly excited by the alternating current from the external power source, and wirelessly receives the AC power from the power transmitting coil 61. Fig. 6A and Figure 6B As shown, although the power receiving coil 43 according to the present embodiment is composed of one coil, the power receiving coil 43 is arranged on the bottom 11b of the power supply unit housing 11 so as to be placed vertically in the power supply unit housing 11 (see Fig. 6A ) and when the power supply unit housing 11 is placed horizontally (see Figure 6B ) can receive power wirelessly in any situation.

[0065] More specifically refer to Figure 3The power receiving coil 43 according to the present embodiment is arranged so that the coil winding axis L1 is inclined (for example, 45°) in the length direction relative to the center line L of the power supply unit housing 11. Fig. 6A As shown, when the power supply unit 10 is placed vertically on the charging pad 62 equipped with the power transmission coil 61, the bottom 11b of the power supply unit housing 11 faces downward, the power receiving coil 43 faces the power transmission coil 61 of the charging pad 62 in a wireless manner at a predetermined angle (e.g., 45°), and the magnetic flux from the power transmission coil 61 penetrates the power receiving coil 43. Figure 6B As shown, when the power supply unit 10 is placed horizontally on the charging pad 62, the power receiving coil 43 wirelessly faces the power transmitting coil 61 of the charging pad 62 at a predetermined angle (e.g., 45°), and the magnetic flux from the power transmitting coil 61 penetrates the power receiving coil 43.

[0066] In wireless charging by the electromagnetic induction method, as the magnetic flux generated by the power transmitting coil 61 that penetrates the power receiving coil 43 increases, the efficiency of wireless charging increases. In other words, when the magnetic flux generated by the power transmitting coil 61 that penetrates the power receiving coil 43 is 0, wireless charging cannot be performed. In order for the magnetic flux generated by the power transmitting coil 61 to penetrate the power receiving coil 43, the power receiving coil 43 and the power transmitting coil 61 need to face each other. It should be noted that in this specification, when the angle formed by the power receiving coil 43 and the power transmitting coil 61 is 90°, the power receiving coil 43 and the power transmitting coil 61 are not considered to face each other.

[0067] As described above, in the present embodiment, regardless of whether the power supply unit 10 is placed vertically on the charging pad 62 or the power supply unit 10 is placed horizontally on the charging pad 62, the power receiving coil 43 wirelessly faces the power transmitting coil 61 at a predetermined angle (e.g., 45°), and the magnetic flux from the power transmitting coil 61 passes through the power receiving coil 43. Therefore, in either case, the power receiving coil can receive power.

[0068] Although the wireless charging of the electromagnetic induction method has been described above, even in the wireless charging of the magnetic resonance method, when the angle formed by the power receiving coil 43 and the power transmitting coil 61 is 90°, wireless charging cannot be performed because the power transmitting coil 61 cannot resonate due to the magnetic field generated by the power receiving coil 43. Therefore, the power receiving coil 43 is arranged so that the coil winding axis L1 is inclined (for example, 45°) in the length direction relative to the center line L of the power supply unit housing 11. In this way, even in the wireless charging of the magnetic resonance method, the power receiving coil can receive power regardless of whether the power supply unit 10 is placed vertically on the charging pad 62 or the power supply unit 10 is placed horizontally on the charging pad 62.

[0069] The angle of the coil winding axis L1 relative to the center line L of the power supply unit housing 11 is not limited to 45°, and is appropriately selected based on, for example, the frequency when the power supply unit 10 is placed vertically and horizontally, and the distance between the power transmitting coil 61 and the power receiving coil 43 when the power supply unit 10 is placed vertically and horizontally.

[0070] The power supply unit housing 11 is preferably provided with a position adjustment portion so that when the power supply unit 10 is placed horizontally, the power supply unit 10 can be maintained within a predetermined angle range within which it can receive power.

[0071] According to such a power supply unit 10, since the user does not need to be concerned about the orientation of the power supply unit housing 11 when the power supply 12 is wirelessly charged, the convenience of wirelessly charging the power supply 12 can be improved. Since the power receiving coil 43 is arranged obliquely with respect to the center line L of the power supply unit housing 11 in the length direction, wireless charging can be performed in both vertical placement and horizontal placement by one power receiving coil 43.

[0072] The rectifier 44 converts the AC power received by the power receiving coil 43 into DC power. The DC power converted by the rectifier 44 is smoothed by the smoothing capacitor 47. Figure 5 As shown, the rectifier 44 according to the present embodiment is a full-wave rectifier circuit in which four diodes D1 to D4 are bridge-connected, and may be a half-wave rectifier circuit. To more specifically describe the rectifier 44 according to the present embodiment, the anode of the diode D1 and the cathode of the diode D2 are connected to the AC wire 48 extending from one end of the power receiving coil 43 at a first connection point P1, and the anode of the diode D3 and the cathode of the diode D4 are connected to the AC wire 48 extending from the other end of the power receiving coil 43 at a second connection point P2. The cathodes of the diodes D1 and D3 are connected to the positive electrode side DC wire 49 at a third connection point P3, and the anodes of the diodes D2 and D4 are connected to the negative electrode side DC wire 49 at a fourth connection point P4.

[0073] The AC wire 48 connects the power receiving coil 43 and the rectifier 44, and supplies the AC power received by the power receiving coil 43 to the rectifier 44. Since the AC power flows through the AC wire 48, heat may be generated due to the skin effect.

[0074] The DC wire 49 connects the rectifier 44 and the charger 13, and supplies the DC power converted by the rectifier 44 to the charger 13. Unlike the AC wire 48, the DC wire 49 does not generate heat due to the skin effect.

[0075] Here, the length of the DC wire 49 is preferably equal to or greater than the length of the AC wire 48. In this way, since the AC wire 48 can be shortened, the heat generation in the AC wire 48 due to the skin effect and the influence of the heat generation in the AC wire 48 on the circuit elements can be prevented. In particular, when the magnetic resonance method is used, the temperature of the power receiving coil 43 increases due to the heat generation in the AC wire 48, so that the coupling coefficient between the power transmitting coil 61 and the power receiving coil 43 is reduced, and the power transmission efficiency is reduced. By shortening the AC wire 48, the reduction in power transmission efficiency can be prevented. In addition to the circuit elements included in the rectifier 44, the charger 13, and the control unit 50, the circuit elements also include capacitors and resistors on a board (not shown) on which these elements are mounted.

[0076] (Layout Configuration)

[0077] like Figure 3 As shown, in the power supply unit housing 11, the power receiving coil 43 and the rectifier 44 are arranged in the bottom 11b, and the charger 13 is arranged on the side opposite to the power receiving coil 43 and the rectifier 44 relative to the power supply 12. When charging in a state where the power supply unit housing 11 is placed vertically, the power receiving coil 43 is arranged below the power supply 12 in the vertical direction, thereby shortening the distance between the power receiving coil 43 and the power transmitting coil 61 of the charging pad 62, and improving the power transmission efficiency. In addition, since the charger 13 is arranged on the side opposite to the power receiving coil 43, and the power supply 12 is inserted therein, the influence of the leakage magnetic field of the power receiving coil 43 on the charger 13 can be prevented.

[0078] The center of the power receiving coil 43 may be a cavity, and components of the power supply unit 10 (such as the power supply 12) may be arranged in the cavity, or may be arranged to penetrate the cavity. By configuring the power supply unit 10 in this manner, the size of the power supply unit 10 may be reduced.

[0079] The power receiving coil 43 and the rectifier 44 are preferably arranged on one side of one end side and the other end side of the power supply 12 in the longitudinal direction A. Thus, since the AC wire 48 connecting the power receiving coil 43 and the rectifier 44 does not need to cross or pass through the largest power supply 12 in the components of the aerosol inhaler 1, the AC wire 48 is shortened and the skin effect is reduced. The power receiving coil 43 and the rectifier 44 can be arranged on any one end side of the one end side and the other end side of the power supply 12 in a direction orthogonal to the longitudinal direction A. Although an elongated cylindrical power supply unit 10 is shown in the present embodiment, the power supply unit housing 11 of the power supply unit 10 can also be a rectangular columnar body with rectangular upper and lower surfaces, or an elliptical columnar body with elliptical upper and lower surfaces, or can have an elliptical shape as a whole. In this case, if the charger 13 is arranged on the side opposite to the power receiving coil 43, and the power supply 12 is inserted therein in a direction orthogonal to the longitudinal direction A, the influence of the leakage magnetic field of the power receiving coil 43 on the charger 13 can be more appropriately prevented.

[0080] like Figure 3 As shown, a shield 81 is provided in the power supply unit housing 11 accommodating the power receiving coil 43 to protect the circuit elements from the leakage magnetic field of the power receiving coil 43. The shield 81 is made of ferrite, soft magnetic material, etc., and can shield or reduce the leakage magnetic field by absorbing the leakage magnetic flux.

[0081] (Modification of circuit configuration)

[0082] The circuit configuration applied to the power supply unit 10 according to the present embodiment is not limited to Figure 5 The circuit configuration shown, and for example, can be applied Figure 7 The circuit configuration shown. Figure 7 The circuit configuration shown is similar to Figure 5 The circuit configuration shown is different in that an inverter 70 is provided as a converter instead of the rectifier 44. The inverter 70 is formed by four switching elements 71 connected in a bridge. The switching element 71 is, for example, a transistor such as an insulated gate bipolar transistor (IGBT) or a metal oxide semiconductor field effect transistor (MOSFET), and turning on and off is performed by adjusting the gate voltage by the control unit 50.

[0083] To more specifically describe the inverter 70 according to the present embodiment, the emitter of the transistor T1 and the collector of the transistor T2 are connected to the AC wire 48 extending from one end of the power receiving coil 43 at a first connection point P1, and the emitter of the transistor T3 and the collector of the transistor T4 are connected to the AC wire 48 extending from the other end of the power receiving coil 43 at a second connection point P2. The collectors of the transistors T1 and T3 are connected to the positive electrode side DC wire 49 at a third connection point P3, and the emitters of the transistors T2 and T4 are connected to the negative electrode side DC wire 49 at a fourth connection point P4. Each of the diodes D1 to D4 connected in the forward direction from the emitter to the collector is provided between the collector and the emitter of the transistors T1 to T4. Since the inverter 70 is used instead of the rectifier 44, the power receiving coil 43 can be used as a power transmitting coil.

[0084] That is, when the power receiving coil of another device is close to the power receiving coil 43, the power of the power supply 12 can excite the power receiving coil 43, and the power can be sent to the power receiving coil of the other device. At this time, the inverter 70 converts the DC power supplied from the power supply 12 into AC power by repeating the state in which the transistors T1 and T4 are turned on and the transistors T2 and T3 are turned off, and the state in which the transistors T1 and T4 are turned off and the transistors T2 and T3 are turned on. When the inverter 70 converts the AC power received by the power receiving coil 43 into DC power, all the transistors T1 to T4 are controlled to be turned off.

[0085] Next, we will refer to Figures 8 to 16 The second and third embodiments of the power supply unit 10 are described in sequence. Note that the description of the first embodiment is incorporated by using the same reference numerals as in the first embodiment to represent the same configuration as the first embodiment. Although an inverter can be used instead of a rectifier in the second and third embodiments, in the following description, the rectifier will be described as an example. In the circuit configuration applied to the power supply unit 10 according to the second and third embodiments, the circuit between the power supply 12 and the discharge terminal 41 is not shown.

[0086] <Second Embodiment>

[0087] like Figures 8 to 10 As shown, the power supply unit 10 according to the second embodiment is different from the power supply unit 10 according to the first embodiment in that a first power receiving coil 43B1 and a second power receiving coil 43B2 are provided, and when the power supply unit housing 11 is placed horizontally (see Fig. 9B ), the first power receiving coil 43B1 can receive power wirelessly, and when the power supply unit housing 11 is placed vertically (see Fig.9A), the second power receiving coil 43B2 can receive power wirelessly. According to such a power supply unit 10, since the power receiving coils 43B1 and 43B2 dedicated to horizontal placement and vertical placement are provided, charging can be effectively performed in both horizontal placement and vertical placement.

[0088] More specifically, if Figure 8 As shown, the first power receiving coil 43B1 is arranged in the substantially middle part (hereinafter referred to as the middle part) of the power supply unit housing 11 so that the coil winding axis center line L11 extends in the length direction in a direction orthogonal to the center line L of the power supply unit housing 11, and the second power receiving coil 43B2 is arranged in the bottom 11b of the power supply unit housing 11 so that the coil winding axis center line L12 extends in the length direction along the center line L of the power supply unit housing 11. In this way, since the power receiving coils 43B1, 43B2 can face the power transmitting coil 61 substantially in parallel, regardless of whether charging is performed in the horizontal placement posture or the vertical placement posture, efficient wireless charging can be performed in both horizontal placement and vertical placement.

[0089] like Fig.10 As shown, the first power receiving coil 43B1 and the second power receiving coil 43B2 are connected in parallel to the charger 13. More specifically, the DC wire 49 connecting the first power receiving coil 43B1 and the charger 13 and the DC wire 49 connecting the second power receiving coil 43B2 and the charger 13 are connected through the fifth connection point P5 and the sixth connection point P6. In this way, since the charger 13 can be shared, the size, weight and cost of the power supply unit 10 can be prevented from increasing. The first rectifier 44B1 is provided between the first power receiving coil 43B1 and the charger 13, and the second rectifier 44B2 is provided between the second power receiving coil 43B2 and the charger 13. Also in such a circuit configuration, the first power receiving coil 43B1 and the second power receiving coil 43B2 are connected in parallel to the charger 13 via the first rectifier 44B1 and the second rectifier 44B2, respectively.

[0090] When the first power receiving coil 43B1 and the second power receiving coil 43B2 are connected in parallel to the charger 13, a part of the circuit connecting the first power receiving coil 43B1 and the charger 13 and a part of the circuit connecting the second power receiving coil 43B2 and the charger 13 can be shared. That is, in the present embodiment, the DC wire 49 between the fifth connection point P5 and the charger 13 and between the sixth connection point P6 and the charger 13 are shared. In this way, by making the circuit shared, the size, weight and cost of the power supply unit 10 can be further prevented from increasing.

[0091] As described above, the power supply 10 according to the second embodiment includes a first rectifier 44B1 that converts AC power received by the first power receiving coil 43B1 into DC power, and a second rectifier 44B2 that converts AC power received by the second power receiving coil 43B2 into DC power. In the power supply unit 10 according to the second embodiment, the first power receiving coil 43B1 and the second power receiving coil 43B2 are arranged separately from each other in the power supply unit housing 11, the first rectifier 44B1 is arranged near the first power receiving coil 43B1, and the second rectifier 44B2 is arranged near the second power receiving coil 43B2. In this way, since the AC wire 48 is shortened, the heat generation caused by the skin effect and its influence on the circuit elements can be prevented. Since the first power receiving coil 43B1 and the first rectifier 44B1, and the second power receiving coil 43B2 and the second rectifier 44B2 are arranged on opposite sides, and the power supply 12 is inserted therein, the power receiving coils 43B1 and 43B2 can be arranged at the best position when placed vertically and horizontally without interfering with each other.

[0092] (Circuit configuration modification)

[0093] The circuit configuration applied to the power supply unit 10 according to the second embodiment is not limited to Fig.10 The circuit configuration shown, and for example, can be applied Fig.11 The circuit configuration shown. Fig.11 The circuit configuration shown is similar to Fig.10 The circuit configuration shown is different in that a smoothing capacitor 47 for ripple removal is provided on a common DC wire 49 on the input side of the charger 13 , and a Zener diode 40 is provided to prevent an excessive voltage from being applied to the charger 13 .

[0094] Both the smoothing capacitor 47 and the Zener diode 40 do not have to be provided, and at least one of the smoothing capacitor 47 and the Zener diode 40 may be provided on the common DC wire 49 on the input side of the charger 13. Since the first power receiving coil 43B1 and the second power receiving coil 43B2 are connected in parallel to at least one of the smoothing capacitor 47 and the Zener diode 40 via the first rectifier 44B1 and the second rectifier 44B2, respectively, at least one of the smoothing capacitor 47 and the Zener diode 40 may be shared, and an increase in size, weight, and cost of the power supply unit 10 may be further prevented. Since the first rectifier 44B1 and the second rectifier 44B2 are connected in parallel to at least one of the smoothing capacitor 47 and the Zener diode 40, circuit elements may be made more commonly used.

[0095] At least one of the smoothing capacitor 47 and the Zener diode 40 is configured to be able to supply power that allows the charger 13 to operate normally in both the case where the first power receiving coil 43B1 receives power wirelessly and the case where the second power receiving coil 43B2 receives power wirelessly. Specifically, the capacity of the smoothing capacitor 47 is set based on the one with a larger ripple of the power supplied from the first power receiving coil 43B1 and the power supplied from the second power receiving coil 43B2. The Zener voltage of the Zener diode 40 is set based on the one with a higher transient voltage or a higher stable voltage of the power supplied from the first power receiving coil 43B1 and the power supplied from the second power receiving coil 43B2. In this way, even when only the smoothing capacitor 47 or only the Zener diode 40 is used, the charger 13 can be appropriately protected, while the size and weight of the power supply unit 10 can be reduced.

[0096] In the power supply unit 10 according to the second embodiment, as Figure 8 As shown, the first shield 81B1 and the second shield 81B2 are disposed behind the first power receiving coil 43B1 and the second power receiving coil 43B2 to protect the circuit elements from the leakage magnetic field of the first power receiving coil 43B1 and the second power receiving coil 43B2.

[0097] <Third Embodiment>

[0098] like Figure 12 to Figure 15 As shown, the power supply unit 10 according to the third embodiment is different from the power supply unit 10 according to the second embodiment in that a first power receiving coil 43B1 and a second power receiving coil 43B2 are provided, and when the power supply unit housing 11 is placed horizontally (see Fig. 13B ), the first power receiving coil 43B1 can receive power wirelessly when the power supply unit housing 11 is placed vertically (see Fig.13A ), the second power receiving coil 43B2 can receive power wirelessly, and the first power receiving coil 43B1 and the second power receiving coil 43B2 are arranged adjacent to one end side of the power source 12, and the rectifier 44 is shared.

[0099] Specifically, the second power receiving coil 43B2 according to the third embodiment is arranged in the middle part of the power supply unit housing 11 and in the vicinity of the first power receiving coil 43B1. When the power supply unit housing 11 is placed vertically, the second power receiving coil 43B2 arranged in the middle part of the power supply unit housing 11 can receive power by capturing the magnetic flux from the annular power transmitting coil 61 surrounding the middle part of the power supply unit housing 11. In other words, when the second power receiving coil 43B2 charges the power supply unit 10 according to the third embodiment, a charging stand (not shown) including a power transmitting coil 61 through which the power supply unit housing 11 can penetrate can be used, and the charging pad 62 in the first embodiment can be used. When the charging pad 62 is used, power transmission is preferably performed by a magnetic resonance method that can transmit power over a longer distance than the electromagnetic induction method.

[0100] like Fig.14 As shown, the first power receiving coil 43B1 and the second power receiving coil 43B2 are connected in parallel to one rectifier 44. More specifically, the AC wire 48 connecting the first power receiving coil 43B1 and the rectifier 44 and the AC wire 48 connecting the second power receiving coil 43B2 and the rectifier 44 are connected at the seventh connection point P7 and the eighth connection point P8. In this way, since the rectifier 44 can be shared, the size, weight and cost of the power supply unit 10 can be further prevented from increasing.

[0101] When the first power receiving coil 43B1 and the second power receiving coil 43B2 are connected in parallel to one rectifier 44, the circuit connecting the first power receiving coil 43B1 and the second power receiving coil 43B2 is preferably provided with an element 91 for preventing a short circuit between the first power receiving coil 43B1 and the second power receiving coil 43B2. Specifically, the element 91 is provided between the first power receiving coil 43B1 and the seventh connection point P7 and between the second power receiving coil 43B2 and the eighth connection point P8, respectively. In this way, a reduction in charging efficiency due to a short circuit between the first power receiving coil 43B1 and the second power receiving coil 43B2 can be avoided.

[0102] The element 91 is preferably a diode D that adjusts the current flow. Thus, since the short circuit between the power receiving coils 43B1 and 43B2 can be prevented by the diode D even without a command from the microcomputer, the number of pins of the microcomputer can be reduced. At least one of the two diodes D may be a parasitic diode such as an IGBT, rather than a backflow prevention diode.

[0103] (First Modification of Circuit Configuration)

[0104] like Fig.15As shown, instead of the diode D, the element 91 may be a switch S that is controlled by the control unit 50 to turn on and off the circuit. In this case, when charging is performed by using the first power receiving coil 43B1, the switch S on the second power receiving coil 43B2 side is turned on, and when charging is performed using the second power receiving coil 43B2, the switch S on the first power receiving coil 43B1 side is turned on. Thus, a short circuit between the first power receiving coil 43B1 and the second power receiving coil 43B2 can be reliably prevented. When the switch S is used, the resistance when passing through the switch S is small, so the charging efficiency can be improved.

[0105] (Second Modification of Circuit Configuration)

[0106] like Fig.16 As shown, also in the power supply unit 10 according to the third embodiment, at least one of a smoothing capacitor 47 for ripple removal and a Zener diode 40 for preventing an excessive voltage from being applied to the charger 13 is preferably provided on a DC wire 49 on the input side of the charger 13. Therefore, the charger 13 can be appropriately protected while reducing the size and weight of the power supply unit 10.

[0107] The present invention is not limited to the above-described embodiments, and may be appropriately modified, improved, etc.

[0108] For example, the power receiving coil may be configured two-dimensionally or three-dimensionally. For example, when the power supply unit housing has a curved portion having at least one circular portion, the first power receiving coil may be arranged so that at least a portion thereof faces the curved portion of the power supply unit housing, and may have a non-zero curvature. In this way, since the first power receiving coil for horizontal placement has a curvature, the diameter of the first power receiving coil may be increased due to the curvature, and the charging efficiency during horizontal placement may be improved. In addition, by effectively utilizing the space in the power supply unit housing, the size of the power supply unit housing may be prevented from increasing.

[0109] This specification describes at least the following matters: Although the corresponding constituent elements and the like in the above-mentioned embodiments are shown in brackets, the present invention is not limited thereto.

[0110] (1) A power supply unit (power supply unit 10) for an aerosol inhaler (aerosol inhaler 1), comprising: a power supply (power supply 12) capable of supplying power to a load (load 21) capable of generating aerosol from an aerosol source; and a housing (power supply unit housing 11) accommodating the power supply, wherein the housing accommodates at least one power receiving coil (power receiving coil 43) capable of receiving power wirelessly both when the housing is placed horizontally and when the housing is placed vertically.

[0111] According to (1), since the power receiving coil can wirelessly receive power both when the housing is placed horizontally and when the housing is placed vertically, the user does not need to be concerned about the orientation of the housing when wireless charging is performed.

[0112] (2) The power supply unit for the mist inhaler according to (1), wherein the power receiving coil is arranged obliquely with respect to a central axis (central line L) of the housing in the length direction.

[0113] According to (2), since the power receiving coil is arranged obliquely with respect to the central axis of the housing in the length direction, wireless charging can be performed in both vertical and horizontal placements. In other words, wireless charging can be performed in both vertical and horizontal placements with a minimum number of circuit elements.

[0114] (3) A power supply unit for an aerosol inhaler according to (1), wherein at least one power receiving coil includes: a first power receiving coil (first power receiving coil 43B1), capable of receiving power wirelessly when the shell is placed horizontally, and a second power receiving coil (second power receiving coil 43B2), separated from the first power receiving coil and capable of receiving power wirelessly when the shell is placed vertically.

[0115] According to (3), since power receiving coils dedicated to horizontal placement and vertical placement are provided, charging can be performed efficiently in both horizontal and vertical placements. In other words, the charging speed of wireless charging can be improved in both vertical and horizontal placements.

[0116] (4) The power supply unit for an aerosol inhaler according to (3), further comprising: a charger (charger 13) capable of controlling charging of the power supply, wherein the first power receiving coil and the second power receiving coil are connected in parallel to the charger.

[0117] According to (4), since the first power receiving coil and the second power receiving coil are connected in parallel to the charger, the charger can be shared, and the size, weight, and cost of the power supply unit can be prevented from increasing.

[0118] (5) The power supply unit for an aerosol inhaler according to (4), wherein a portion of the circuit connecting the first power receiving coil and the charger (DC wire 49) and a portion of the circuit connecting the second power receiving coil and the charger (DC wire 49) are shared.

[0119] According to (5), since a portion of the circuit connecting the first power receiving coil and the charger and a portion of the circuit connecting the second power receiving coil and the charger are shared, the size, weight and cost of the power supply unit can be further prevented from increasing.

[0120] (6) The power supply unit for an aerosol inhaler according to any one of (3) to (5) further includes: a charger (charger 13) capable of controlling power charging; and a converter (rectifier 44, inverter 70) connected to the charger and configured to convert AC power into DC power, wherein the first power receiving coil and the second power receiving coil are connected in parallel to the converter.

[0121] According to (6), since the first power receiving coil and the second power receiving coil are connected to the converter in parallel, the converter can be made common, and the size, weight, and cost of the power supply unit can be further prevented from increasing.

[0122] (7) The power supply unit for an aerosol inhaler according to any one of (4) to (6) further includes: at least one of a smoothing capacitor (smoothing capacitor 47) and a Zener diode (Zener diode 40) connected to the input side of the charger, wherein the first power receiving coil and the second power receiving coil are connected in parallel to at least one of the smoothing capacitor and the Zener diode.

[0123] According to (7), since the first power receiving coil and the second power receiving coil are connected in parallel to at least one of the smoothing capacitor and the Zener diode, at least one of the smoothing capacitor and the Zener diode can be shared, and the size, weight and cost of the power supply unit can be further prevented from increasing.

[0124] (8) A power supply unit for an aerosol inhaler according to (7), wherein at least one of the smoothing capacitor and the Zener diode is configured to supply power that enables the charger to operate normally both when the first power receiving coil receives power wirelessly and when the second power receiving coil receives power wirelessly.

[0125] According to (8), since at least one of the smoothing capacitor and the Zener diode is configured according to the charging power that needs to be further improved, even if a single smoothing capacitor or Zener diode is used, the charger can be appropriately protected while reducing the size and weight of the power supply unit.

[0126] (9) A power supply unit for an aerosol inhaler according to (7), wherein a capacity of a smoothing capacitor is set based on the one having a higher ripple between the power supplied from the first power receiving coil and the power supplied from the second power receiving coil, and / or a Zener voltage of a Zener diode is set based on the one having a higher transient voltage or a higher stable voltage between the power supplied from the first power receiving coil and the power supplied from the second power receiving coil.

[0127] According to (9), even if a single smoothing capacitor or Zener diode is used, the charger can be appropriately protected while reducing the size and weight of the power supply unit.

[0128] (10) A power supply unit for an aerosol inhaler according to any one of (3) to (9): wherein the housing has a curved portion having at least one circular portion, and wherein the first power receiving coil is arranged so that at least a portion thereof faces the curved portion and has a non-zero curvature.

[0129] According to (10), since the power receiving coil for horizontal placement has a curvature, the diameter of the power receiving coil can be increased due to the curvature, and the charging efficiency during horizontal placement can be improved. In addition, by effectively utilizing the space in the housing, the size of the housing can be prevented from increasing.

[0130] (11) The power supply unit for an aerosol inhaler according to any one of (3) to (5) further includes: a converter (rectifier 44, inverter 70) configured to convert AC power into DC power, wherein the converter includes: a first converter (first rectifier 44B1), and a second converter (second rectifier 44B2) separated from the first converter, wherein the first power receiving coil and the second power receiving coil are arranged separately from each other in the housing, wherein the first power receiving coil is connected to the first converter, and wherein the second power receiving coil is connected to the second converter.

[0131] According to (11), since two converters are provided when two power receiving coils are arranged apart from each other, the AC wire connecting the power receiving coil and the converter can be shortened, and heat generation due to the skin effect and its influence on circuit elements can be prevented.

[0132] (12) A power supply unit for an aerosol inhaler according to (11), wherein the first converter and the second converter are housed in a housing, wherein the first power receiving coil and the first converter are arranged on one end side of the power supply, and the second power receiving coil and the second converter are arranged on the other end side of the power supply.

[0133] According to (12), since the first power receiving coil and the first converter, and the second power receiving coil and the second converter are arranged on opposite sides with the power source inserted therein, the power receiving coil can be arranged at an optimal position when placed vertically and horizontally.

[0134] (13) The power supply unit for an aerosol inhaler according to (11) or (12) further includes: a charger (charger 13) capable of controlling power charging; and at least one of a smoothing capacitor (smoothing capacitor 47) and a Zener diode (Zener diode 40) connected to the input side of the charger, wherein the first converter and the second converter are connected in parallel to at least one of the smoothing capacitor and the Zener diode.

[0135] According to (13), since the first converter and the second converter are connected in parallel to at least one of the smoothing capacitor and the Zener diode, circuit elements can be shared, and the size and weight of the power supply unit can be reduced.

[0136] (14) The power supply unit for an aerosol inhaler according to any one of (3) to (10), further comprising: an element for preventing a short circuit between the first power receiving coil and the second power receiving coil.

[0137] According to (14), since an element is provided to prevent a short circuit between the first power receiving coil and the second power receiving coil, a decrease in charging efficiency due to a short circuit can be avoided. In addition, when one of the first power receiving coil and the second power receiving coil receives power, the other coil can be properly protected.

[0138] (15) The power supply unit for an aerosol inhaler according to (14), wherein the element is a switch.

[0139] According to (15), by disconnecting the circuit with a switch, a short circuit between the first power receiving coil and the second power receiving coil can be reliably prevented. In addition, since the resistance when passing through the switch is small, the charging efficiency is improved. In addition, when one of the first power receiving coil and the second power receiving coil receives power, the other coil can be properly protected.

[0140] (16) The power supply unit for an aerosol inhaler according to (14), wherein the element is a diode (diode D).

[0141] According to (16), since the diode can prevent short circuits between coils, short circuits between coils can be prevented even without a command from the microcomputer, and the number of pins of the microcomputer can be reduced. In addition, when one of the first power receiving coil and the second power receiving coil receives power, the other coil can be properly protected.

[0142] (17) The power supply unit for an aerosol inhaler according to any one of (6), (11) to (13), wherein the converter is a rectifier or an inverter.

[0143] According to (17), since the converter can be a rectifier (rectifier 44) or an inverter (inverter 70) with high versatility, the manufacturing cost can be reduced.

Claims

1. A power supply unit for an aerosol inhaler, comprising: a power source capable of supplying power to a load capable of generating an aerosol from an aerosol source; as well as a housing accommodating the power supply, The housing contains at least one power receiving coil, and the at least one power receiving coil can receive power wirelessly when the housing is placed horizontally or when the housing is placed vertically. Wherein, the at least one power receiving coil comprises: a first power receiving coil capable of receiving power wirelessly when the housing is placed horizontally, and a second power receiving coil, separated from the first power receiving coil and capable of receiving power wirelessly when the housing is placed vertically, The power supply unit further includes: a converter configured to convert AC power into DC power, Wherein, the converter comprises: a first converter, and a second converter, separate from said first converter, wherein the first power receiving coil and the second power receiving coil are arranged separately from each other in the housing, wherein the first power receiving coil is connected to the first converter, wherein the second power receiving coil is connected to the second converter, wherein the first converter and the second converter are accommodated in the housing, wherein the first power receiving coil and the first converter are arranged at one end side of the power supply, and The second power receiving coil and the second converter are arranged at the other end side of the power supply.

2. The power supply unit for the aerosol inhaler according to claim 1, further comprising: a charger capable of controlling the charging of the power source, Wherein, the first power receiving coil and the second power receiving coil are connected to the charger in parallel.

3. The power supply unit for an aerosol inhaler according to claim 2, in, A portion of a circuit connecting the first power receiving coil and the charger and a portion of a circuit connecting the second power receiving coil and the charger are common.

4. The power supply unit for an aerosol inhaler according to any one of claims 1 to 3, further comprising: a charger capable of controlling the charging of the power source; as well as a converter connected to the charger and configured to convert AC power into DC power, Wherein, the first power receiving coil and the second power receiving coil are connected to the converter in parallel.

5. The power supply unit for the aerosol inhaler according to any one of claims 2 or 3, further comprising: At least one of a smoothing capacitor and a Zener diode, connected to the input side of the charger, Wherein, the first power receiving coil and the second power receiving coil are connected in parallel to at least one of the smoothing capacitor and the Zener diode.

6. The power supply unit for an aerosol inhaler according to claim 5, in, At least one of the smoothing capacitor and the Zener diode is configured to supply power enabling the charger to operate normally both in a case where the first power receiving coil receives power wirelessly and in a case where the second power receiving coil receives power wirelessly.

7. The power supply unit for an aerosol inhaler according to claim 5, in, The capacity of the smoothing capacitor is set based on whichever of the power supplied from the first power receiving coil and the power supplied from the second power receiving coil has a higher ripple, and / or the Zener voltage of the Zener diode is set based on whichever of the power supplied from the first power receiving coil and the power supplied from the second power receiving coil has a higher transient voltage or a higher stable voltage.

8. A power supply unit for an aerosol inhaler according to any one of claims 1 to 3: in, The housing has a curved portion at least partly rounded, and The first power receiving coil is arranged such that at least a portion thereof faces the curved portion and has a non-zero curvature.

9. The power supply unit for an aerosol inhaler according to claim 1, further comprising: a charger capable of controlling the charging of the power source; as well as At least one of a smoothing capacitor and a Zener diode, connected to the input side of the charger, Wherein, the first converter and the second converter are connected in parallel to at least one of the smoothing capacitor and the Zener diode.

10. The power supply unit for an aerosol inhaler according to any one of claims 1 to 3, further comprising: An element for preventing a short circuit between the first power receiving coil and the second power receiving coil.

11. The power supply unit for an aerosol inhaler according to claim 10, in, The element is a switch.

12. The power supply unit for an aerosol inhaler according to claim 10, in, The element is a diode.

13. The power supply unit for an aerosol inhaler according to claim 1: in, The converter is a rectifier or an inverter.

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