WO2022195869A1

WO2022195869A1 - Suction device, electromagnetic induction source, electromagnetic induction source manufacturing method, and system

Info

Publication number: WO2022195869A1
Application number: PCT/JP2021/011472
Authority: WO
Inventors: 玲二朗川崎
Original assignee: 日本たばこ産業株式会社
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2022-09-22
Also published as: JPWO2022195869A1; EP4233594A1

Abstract

Provided is an electromagnetic induction source suitable for an induction heating type suction device. The present invention is a suction device provided with an electromagnetic induction source, said device comprising: a plurality of coil sheets 1 that are laminated; and at least one connecting portion. Each of the coil sheets has a substrate, a through hole penetrating through the substrate in the direction of lamination, and a conductor portion having a first end and a second end as the two ends and being disposed on the substrate so as to surround the through hole. The connecting portion electrically connects two coil sheets adjacent in the lamination direction, such that the second end of the conductor disposed on the coil sheet positioned above in the lamination direction and the first end of the conductor disposed on the coil sheet positioned below in the lamination direction are electrically connected.

Description

Suction device, electromagnetic induction source, method for manufacturing electromagnetic induction source, and system

The present invention relates to a suction device, an electromagnetic induction source, and a method and system for manufacturing an electromagnetic induction source.

Inhalation devices, such as electronic cigarettes and nebulizers, that produce substances that are inhaled by the user are widespread. For example, the suction device uses a base material including an aerosol source for generating an aerosol and a flavor source for imparting a flavor component to the generated aerosol to generate an aerosol imparted with a flavor component. A user can enjoy the flavor by inhaling the flavor component-applied aerosol generated by the suction device. The action of the user inhaling the aerosol is hereinafter also referred to as puffing or puffing action.

Until now, suction devices that use external heat sources such as heating blades have been the mainstream. However, in recent years, attention has been focused on an induction-heating suction device that generates aerosol by induction-heating a susceptor using an electromagnetic induction source configured as a coil, as disclosed in Patent Document 1 below. there is

Japanese Patent No. 6623175

However, while Patent Document 1 discloses the use of an existing coil as an electromagnetic induction source, it does not mention any technological improvement of the electromagnetic induction source itself.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a mechanism relating to an electromagnetic induction source that is suitable for an induction heating type suction device.

In order to solve the above problems, according to one aspect of the present invention, a power supply unit for supplying electric power, a substrate containing an aerosol source, and a susceptor thermally adjacent to the aerosol source can be accommodated in an internal space. and an electromagnetic induction source that generates a varying magnetic field in the internal space using power supplied from the power supply unit, the electromagnetic induction source comprising: a plurality of laminated coil sheets; and one or more connection portions, wherein the coil sheet includes a substrate, a through hole penetrating the substrate in a stacking direction, and a first end portion and a second end portion surrounding the through hole. wherein the connecting portion is arranged on the coil sheet positioned above the stacking direction of the two coil sheets adjacent to each other in the stacking direction. The second end portion of the conductor portion and the first end portion of the conductor portion disposed on the coil sheet located on the lower side in the stacking direction are electrically connected to each other. the first end portion of the conductor portion arranged on the coil sheet positioned on the uppermost side of the and the second end portion of the conductor portion arranged on the coil sheet positioned on the lowermost side in the stacking direction; An end portion is provided with a suction device electrically connected to the power supply.

The plurality of coil sheets may be arranged such that the through holes overlap in the stacking direction.

The electromagnetic induction source includes one or more first sealing portions, and the first sealing portions fill the gap between the two coil sheets adjacent to each other in the stacking direction more than the conductor portion. A side close to the through hole may be sealed.

The electromagnetic induction source includes at least one second sealing portion, and the second sealing portion fills the gap between the two coil sheets adjacent to each other in the stacking direction more than the conductor portion. The side remote from the through hole may be sealed.

The accommodation portion may be arranged inside a space formed by the plurality of through holes stacked in the stacking direction.

The accommodating portion may be composed of a plurality of through-holes and one or more first sealing portions stacked in the stacking direction.

The conductor may have a plurality of conductive paths between the first end and the second end.

A plurality of the conductive paths may be arranged in parallel so as to be separated from each other in a direction orthogonal to the stacking direction.

The first end may be exposed upward in the stacking direction from the substrate, and the second end may be exposed downward in the stacking direction from the substrate.

The two coil sheets adjacent to each other in the stacking direction have the second end portion of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction and the second end portion of the conductor portion located on the lower side in the stacking direction. The first ends of the conductors arranged on the coil sheet may be arranged so as to substantially overlap in the stacking direction.

In order to solve the above problems, according to another aspect of the present invention, there is provided an electromagnetic induction source that generates a varying magnetic field using supplied electric power, comprising: a plurality of laminated coil sheets; and one or more connection portions, wherein the coil sheet includes a substrate, a through hole penetrating the substrate in a stacking direction, and a first end portion and a second end portion surrounding the through hole. wherein the connecting portion is arranged on the coil sheet positioned above the stacking direction of the two coil sheets adjacent to each other in the stacking direction. The second end portion of the conductor portion and the first end portion of the conductor portion disposed on the coil sheet located on the lower side in the stacking direction are electrically connected to each other. The first end of the coil sheet located on the uppermost side and the second end of the coil sheet located on the lowermost side in the stacking direction are electrically connected to a power source that supplies power A connected source of electromagnetic induction is provided.

In order to solve the above problems, according to another aspect of the present invention, there is provided a manufacturing method for manufacturing an electromagnetic induction source that generates a varying magnetic field using supplied power, comprising: a substrate; A plurality of coil sheets each having a through-hole penetrating the substrate in the stacking direction, and a conductor portion having a first end portion and a second end portion as both ends and arranged in the substrate so as to surround the through-hole. laminating a plurality of the coil sheets in the lamination direction; The second end portion of the conductor portion and the first end portion of the conductor portion disposed on the coil sheet located on the lower side in the lamination direction are electrically connected by a connection portion. for all combinations of the two coil sheets adjacent to each other in the stacking direction.

Further, in order to solve the above problems, according to another aspect of the present invention, there is provided a system comprising a suction device and a base material, the base material containing an aerosol source, the suction device a power supply unit that supplies the base material and the aerosol source, and a housing unit that can accommodate the susceptor that is in thermal proximity to the base material and the aerosol source in the internal space; an electromagnetic induction source for generating a magnetic field, wherein the electromagnetic induction source comprises a plurality of laminated coil sheets and one or more connecting portions, the coil sheet comprising a substrate and the substrate laminated together. a through hole penetrating in the direction of the Of the two adjacent coil sheets in the stacking direction, the second end portion of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction, and the coil sheet located on the lower side in the stacking direction. The first end of the conductor portion arranged on the coil sheet is electrically connected to the first end of the conductor portion arranged on the coil sheet positioned on the uppermost side in the stacking direction. A system is provided in which the portion and the second end portion of the conductor portion arranged on the coil sheet located on the lowermost side in the stacking direction are electrically connected to the power supply portion.

As described above, according to the present invention, there is provided a mechanism relating to an electromagnetic induction source suitable for an induction heating type suction device.

It is a schematic diagram which shows the structural example of a suction device typically. It is a perspective view which shows typically an example of a structure of the electromagnetic induction source which concerns on this embodiment. It is an exploded perspective view showing typically an example of composition of an electromagnetic induction source concerning this embodiment. FIG. 2 is a top view showing an example of the configuration of the coil sheet according to the present embodiment; 3 is a cross-sectional view showing an example of a cross section of the electromagnetic induction source according to the present embodiment, taken along line AA shown in FIG. 2; FIG. FIG. 3 is a cross-sectional view showing an example of a cross section taken along the line BB shown in FIG. 2 of the electromagnetic induction source according to the present embodiment; It is a flowchart which shows an example of the flow of the manufacturing method for manufacturing the electromagnetic induction source which concerns on this embodiment. 3 is a cross-sectional view showing an example of a cross section taken along the line AA shown in FIG. 2 of the electromagnetic induction source according to the first modified example; FIG. 3 is a cross-sectional view showing another example of the cross section of the electromagnetic induction source according to the first modified example taken along the line AA shown in FIG. 2; FIG. FIG. 11 is a top view showing an example of the configuration of a coil sheet according to a second modified example; FIG. 11 is a top view showing an example of two coil sheets adjacent in the stacking direction among a plurality of coil sheets included in an electromagnetic induction source according to a third modified example; FIG. 12 is a cross-sectional view of the electromagnetic induction source according to the third modification, partly taken along the CC cutting line shown in FIG. 11;

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the present specification and drawings, constituent elements having substantially the same functional configuration are denoted by the same reference numerals, thereby omitting redundant description.

<1. Configuration example of suction device>
The suction device according to this configuration example generates an aerosol by heating a substrate including an aerosol source by induction heating (IH (Induction Heating)). This configuration example will be described below with reference to FIG.

FIG. 1 is a schematic diagram schematically showing a configuration example of a suction device. As shown in FIG. 1, the suction device 100 according to this configuration example includes a power supply unit 111, a sensor unit 112, a notification unit 113, a storage unit 114, a communication unit 115, a control unit 116, a susceptor 161, an electromagnetic induction source 162, and A retainer 140 is included. The user performs suction while the stick-shaped substrate 150 is held by the holding portion 140 . Each component will be described in order below.

The power supply unit 111 accumulates power. The power supply unit 111 supplies electric power to each component of the suction device 100 . The power supply unit 111 may be composed of, for example, a rechargeable battery such as a lithium ion secondary battery. The power supply unit 111 may be charged by being connected to an external power supply via a USB (Universal Serial Bus) cable or the like. Also, the power supply unit 111 may be charged in a state of being disconnected from the device on the power transmission side by wireless power transmission technology. Alternatively, only the power supply unit 111 may be detached from the suction device 100 or may be replaced with a new power supply unit 111 .

The sensor unit 112 detects various information regarding the suction device 100 . The sensor unit 112 then outputs the detected information to the control unit 116 . As an example, the sensor unit 112 is configured by a pressure sensor such as a condenser microphone, a flow rate sensor, or a temperature sensor. When the sensor unit 112 detects a numerical value associated with the user's suction, the sensor unit 112 outputs information indicating that the user has performed suction to the control unit 116 . As another example, the sensor unit 112 is configured by an input device, such as a button or switch, that receives information input from the user. Among other things, sensor unit 112 may include a button for instructing start/stop of aerosol generation. The sensor unit 112 then outputs the information input by the user to the control unit 116 . As another example, the sensor section 112 is configured by a temperature sensor that detects the temperature of the susceptor 161 . Such a temperature sensor detects the temperature of the susceptor 161 based on the electrical resistance value of the electromagnetic induction source 162, for example. The sensor section 112 may detect the temperature of the stick-shaped substrate 150 held by the holding section 140 based on the temperature of the susceptor 161 .

The notification unit 113 notifies the user of information. As an example, the notification unit 113 is configured by a light-emitting device such as an LED (Light Emitting Diode). In this case, the notification unit 113 emits light in different light emission patterns when the power supply unit 111 is in a charging required state, when the power supply unit 111 is being charged, when an abnormality occurs in the suction device 100, and the like. . The light emission pattern here is a concept including color, timing of lighting/lighting out, and the like. The notification unit 113 may be configured by a display device that displays an image, a sound output device that outputs sound, a vibration device that vibrates, or the like, together with or instead of the light emitting device. In addition, the notification unit 113 may notify information indicating that suction by the user has become possible. Information indicating that suction by the user is enabled is notified when the temperature of the stick-shaped base material 150 heated by electromagnetic induction reaches a predetermined temperature.

The storage unit 114 stores various information for the operation of the suction device 100 . The storage unit 114 is configured by, for example, a non-volatile storage medium such as flash memory. An example of the information stored in the storage unit 114 is information regarding the OS (Operating System) of the suction device 100, such as control details of various components by the control unit 116. FIG. Another example of the information stored in the storage unit 114 is information related to suction by the user, such as the number of times of suction, suction time, total suction time, and the like.

The communication unit 115 is a communication interface for transmitting and receiving information between the suction device 100 and other devices. The communication unit 115 performs communication conforming to any wired or wireless communication standard. As such a communication standard, for example, wireless LAN (Local Area Network), wired LAN, Wi-Fi (registered trademark), Bluetooth (registered trademark), or the like can be adopted. As an example, the communication unit 115 transmits information about suction by the user to the smartphone so that the smartphone displays information about suction by the user. As another example, the communication unit 115 receives new OS information from the server in order to update the OS information stored in the storage unit 114 .

The control unit 116 functions as an arithmetic processing device and a control device, and controls the general operations within the suction device 100 according to various programs. The control unit 116 is realized by an electronic circuit such as a CPU (Central Processing Unit) and a microprocessor. In addition, the control unit 116 may include a ROM (Read Only Memory) for storing programs to be used, calculation parameters, etc., and a RAM (Random Access Memory) for temporarily storing parameters, etc. that change as appropriate. The suction device 100 executes various processes under the control of the controller 116 . Power supply from power supply unit 111 to other components, charging of power supply unit 111, detection of information by sensor unit 112, notification of information by notification unit 113, storage and reading of information by storage unit 114, and communication unit 115 Transmission and reception of information is an example of processing controlled by the control unit 116 . Other processes executed by the suction device 100, such as information input to each component and processing based on information output from each component, are also controlled by the control unit 116. FIG.

The holding part 140 has an internal space 141 and holds the stick-shaped base material 150 while accommodating a part of the stick-shaped base material 150 in the internal space 141 . The holding part 140 has an opening 142 that communicates the internal space 141 with the outside, and holds the stick-shaped substrate 150 inserted into the internal space 141 through the opening 142 . For example, the holding portion 140 is a tubular body having an opening 142 and a bottom portion 143 as a bottom surface, and defines a columnar internal space 141 . The holding part 140 is configured such that the inner diameter is smaller than the outer diameter of the stick-shaped base material 150 at least in part in the height direction of the cylindrical body, and holds the stick-shaped base material 150 inserted into the internal space 141. The stick-shaped substrate 150 can be held by pressing from the outer periphery. The retainer 140 also functions to define air flow paths through the stick-shaped substrate 150 . An air inlet hole, which is an inlet for air into the flow path, is arranged, for example, in the bottom portion 143 . On the other hand, the air outflow hole, which is the exit of air from such a channel, is the opening 142 .

The stick-shaped base material 150 is a stick-shaped member. The stick-type substrate 150 includes a substrate portion 151 and a mouthpiece portion 152 .

The base material portion 151 includes an aerosol source. The aerosol source is atomized by heating to produce an aerosol. The aerosol source may be tobacco-derived, such as, for example, a processed product of cut tobacco or tobacco material formed into granules, sheets, or powder. Aerosol sources may also include non-tobacco sources made from plants other than tobacco, such as mints and herbs. By way of example, the aerosol source may contain perfume ingredients such as menthol. If the inhalation device 100 is a medical inhaler, the aerosol source may contain a medicament for inhalation by the patient. The aerosol source is not limited to solids, and may be, for example, polyhydric alcohols such as glycerin and propylene glycol, and liquids such as water. At least part of the base material part 151 is accommodated in the internal space 141 of the holding part 140 in a state in which the stick-shaped base material 150 is held by the holding part 140.

The mouthpiece 152 is a member held by the user when inhaling. At least part of the mouthpiece 152 protrudes from the opening 142 when the stick-shaped base material 150 is held by the holding part 140 . Then, when the user holds the mouthpiece 152 protruding from the opening 142 and sucks, air flows into the inside of the holding part 140 from an air inlet hole (not shown). The air that has flowed in passes through the internal space 141 of the holding part 140 , that is, passes through the base material part 151 and reaches the inside of the user's mouth together with the aerosol generated from the base material part 151 .

Furthermore, the stick-type base material 150 includes a susceptor 161 . The susceptor 161 generates heat by electromagnetic induction. The susceptor 161 is made of a conductive material such as metal. As an example, the susceptor 161 is a piece of metal. A susceptor 161 is placed in close proximity to the aerosol source. In the example shown in FIG. 1, the susceptor 161 is included in the base portion 151 of the stick-shaped base 150 .

Here, the susceptor 161 is placed in thermal proximity to the aerosol source. The susceptor 161 being thermally close to the aerosol source means that the susceptor 161 is arranged at a position where heat generated in the susceptor 161 is transferred to the aerosol source. For example, the susceptor 161 is contained in the substrate portion 151 along with the aerosol source and is surrounded by the aerosol source. With such a configuration, the heat generated from the susceptor 161 can be efficiently used to heat the aerosol source.

It should be noted that the susceptor 161 may not be accessible from the outside of the stick-shaped substrate 150 . For example, the susceptors 161 may be distributed in the central portion of the stick-shaped substrate 150 and not distributed near the periphery.

The electromagnetic induction source 162 causes the susceptor 161 to generate heat by electromagnetic induction. The electromagnetic induction source 162 is composed of, for example, a coiled conductor wire, and is arranged so as to wrap around the outer periphery of the holding portion 140 . The electromagnetic induction source 162 generates a magnetic field when alternating current is supplied from the power supply section 111 . The electromagnetic induction source 162 is arranged at a position where the internal space 141 of the holding section 140 overlaps the generated magnetic field. Therefore, when a magnetic field is generated while the stick-shaped substrate 150 is held by the holding portion 140, an eddy current is generated in the susceptor 161 and Joule heat is generated. Then, the Joule heat heats the aerosol source contained in the stick-shaped substrate 150 and atomizes it to generate an aerosol. As an example, power may be supplied and an aerosol may be generated when the sensor unit 112 detects that a predetermined user input has been performed. When the temperature of the stick-shaped substrate 150 induction-heated by the susceptor 161 and the electromagnetic induction source 162 reaches a predetermined temperature, the suction by the user becomes possible. After that, when the sensor unit 112 detects that a predetermined user input has been performed, the power supply may be stopped. As another example, power may be supplied and aerosol may be generated during a period in which the sensor unit 112 detects that the user has inhaled.

Although FIG. 1 shows an example in which the susceptor 161 is included in the base material portion 151 of the stick-shaped base material 150, this configuration example is not limited to such an example. For example, the holding part 140 may serve the function of the susceptor 161 . In this case, the magnetic field generated by the electromagnetic induction source 162 generates an eddy current in the holding portion 140 and generates Joule heat. Then, the Joule heat heats the aerosol source contained in the stick-shaped substrate 150 and atomizes it to generate an aerosol.

Note that the combination of the suction device 100 and the stick-shaped substrate 150 may be regarded as one system in that aerosol can be generated by combining the suction device 100 and the stick-shaped substrate 150 .

<2. Induction heating>
Induction heating is described in detail below.

Induction heating is the process of heating a conductive object by penetrating a varying magnetic field into the object. Induction heating involves a magnetic field generator that generates a fluctuating magnetic field, and a conductive heated object that is heated by being exposed to the fluctuating magnetic field. An example of a varying magnetic field is an alternating magnetic field. The electromagnetic induction source 162 shown in FIG. 1 is an example of a magnetic field generator. The susceptor 161 shown in FIG. 1 is an example of the object to be heated.

When the magnetic field generator and the object to be heated are arranged in relative positions such that the fluctuating magnetic field generated by the magnetic field generator penetrates into the object to be heated, when the fluctuating magnetic field is generated from the magnetic field generator, the object to be heated Eddy currents are induced. When the eddy current flows through the object to be heated, Joule heat corresponding to the electrical resistance of the object to be heated is generated and the object to be heated is heated. Such heating is also referred to as joule heating, ohmic heating, or resistance heating.

The object to be heated may have magnetism. In that case, the object to be heated is further heated by magnetic hysteresis heating. Magnetic hysteresis heating is the process of heating a magnetic object by impinging it with a varying magnetic field. When a magnetic field penetrates a magnetic body, the magnetic dipoles contained in the magnetic body align along the magnetic field. Therefore, when a fluctuating magnetic field penetrates a magnetic material, the orientation of the magnetic dipole changes according to the applied fluctuating magnetic field. Due to such reorientation of the magnetic dipoles, heat is generated in the magnetic material, and the object to be heated is heated.

Magnetic hysteresis heating typically occurs at temperatures below the Curie point and does not occur at temperatures above the Curie point. The Curie point is the temperature at which a magnetic material loses its magnetic properties. For example, when the temperature of an object to be heated which has ferromagnetism at a temperature below the Curie point exceeds the Curie point, the magnetism of the object to be heated undergoes a reversible phase transition from ferromagnetism to paramagnetism. When the temperature of the object to be heated exceeds the Curie point, magnetic hysteresis heating does not occur, so the rate of temperature increase slows down.

It is desirable that the object to be heated is made of a conductive material. Furthermore, it is desirable that the object to be heated is made of a ferromagnetic material. In the latter case, it is possible to increase the heating efficiency by combining resistance heating and magnetic hysteresis heating. For example, the object to be heated is made of one or more materials selected from a group of materials including aluminum, iron, nickel, cobalt, conductive carbon, copper, stainless steel, and the like.

In both resistance heating and magnetic hysteresis heating, heat is generated inside the object to be heated, not by heat conduction from an external heat source. Therefore, rapid temperature rise of the object to be heated and uniform heat distribution can be realized. This can be realized by appropriately designing the material and shape of the object to be heated and the magnitude and direction of the varying magnetic field. That is, by appropriately designing the distribution of the susceptors 161 included in the stick-shaped substrate 150, a rapid temperature rise and uniform heat distribution of the stick-shaped substrate 150 can be achieved. Therefore, the time required for preheating can be shortened, and the quality of flavor that the user can enjoy can be improved.

Since induction heating directly heats the susceptor 161 included in the stick-shaped base material 150, the base material can be heated more efficiently than when the stick-shaped base material 150 is heated from the outer periphery or the like by an external heat source. It is possible. Moreover, when heating is performed by an external heat source, the temperature of the external heat source is inevitably higher than that of the stick-shaped substrate 150 . On the other hand, when performing induction heating, the electromagnetic induction source 162 does not become hotter than the stick-shaped substrate 150 . Therefore, the temperature of the suction device 100 can be kept lower than when an external heat source is used, which is a great advantage in terms of user safety.

The electromagnetic induction source 162 uses power supplied from the power supply unit 111 to generate a varying magnetic field. As an example, the power supply unit 111 may be a DC (Direct Current) power supply. In that case, the power supply unit 111 supplies AC power to the electromagnetic induction source 162 via a DC/AC (Alternate Current) inverter. In that case, the electromagnetic induction source 162 can generate an alternating magnetic field.

The holding part 140 is an example of an accommodating part capable of accommodating the stick-shaped substrate 150 and the susceptor 161 in the internal space 141 . The electromagnetic induction source 162 uses power supplied from the power supply unit 111 to generate a varying magnetic field in the internal space 141 . The susceptor 161 generates heat when a fluctuating magnetic field enters. The electromagnetic induction source 162 shown in FIG. 1 is a solenoid coil. The solenoid-type coil is arranged so that the conductive wire covers the outer periphery of the holding portion 140 . When a current is applied to the solenoid type coil, a magnetic field is generated in the central space surrounded by the coil, that is, the internal space 141 of the holding part 140 . As shown in FIG. 1, when the stick-shaped substrate 150 is held by the holding portion 140, the susceptor 161 is surrounded by the coil. Therefore, the fluctuating magnetic field generated by the electromagnetic induction source 162 enters the susceptor 161 and heats the susceptor 161 by induction.

<3. Technical features>
A coil, which is an electromagnetic induction source, can be a bottleneck in reducing the size of an induction heating type suction device. This is because the coil becomes long in the direction of the winding axis, and the coil occupies a considerable area of the suction device. On the other hand, it seems possible to reduce the size of the coil by shortening the conducting wires that make up the coil. However, if the conductor wire is shortened, the number of turns of the coil cannot be secured, and it may become difficult to generate a magnetic field strong enough to induction-heat the susceptor.

In addition, it can be said that the method of manufacturing a coil by winding a conductive wire around a cylindrical winding shaft has limitations in terms of various aspects such as miniaturization and precision.

Therefore, the present embodiment provides a mechanism for configuring the electromagnetic induction source 162 by stacking substrates provided with annular conductor tracks.

(1) Configuration of Electromagnetic Induction Source 162 The configuration of the electromagnetic induction source 162 according to this embodiment will be described below with reference to FIGS. 2 to 6. FIG.

FIG. 2 is a perspective view schematically showing an example of the configuration of the electromagnetic induction source 162 according to this embodiment. FIG. 3 is an exploded perspective view schematically showing an example of the configuration of the electromagnetic induction source 162 according to this embodiment. FIG. 4 is a top view showing an example of the configuration of the coil sheet 10 according to this embodiment. FIG. 5 is a cross-sectional view showing an example of a cross section of the electromagnetic induction source 162 according to the present embodiment taken along the line AA shown in FIG. FIG. 6 is a cross-sectional view showing an example of a cross section of the electromagnetic induction source 162 according to the present embodiment taken along the line BB shown in FIG.

As shown in FIGS. 2 and 3 , the electromagnetic induction source 162 has a plurality of laminated coil sheets 10 and one or more connecting portions 50 . In the example shown in FIGS. 2 and 3, the electromagnetic induction source 162 has four coil sheets 10 (10A-10D) and three connection portions 50 (50A-50C). Of course, the number of coil sheets 10 and conductor portions 40 is not limited to this example. The stacking direction is the direction in which the coil sheets 10 are stacked. One of the stacking directions is also referred to as top, and the other is also referred to as bottom. In this specification, the electromagnetic induction source 162 is incorporated into the suction device 100 such that the upper side in the stacking direction is the side closer to the opening 142 and the lower side in the stacking direction is the side farther from the opening 142 .

In addition, in the present specification and drawings, elements having substantially the same functional configuration may be distinguished by attaching different alphabets after the same reference numerals. For example, a plurality of elements having substantially the same functional configuration are distinguished like

coil sheets

10A, 10B and 10C as required. However, when there is no particular need to distinguish between a plurality of elements having substantially the same functional configuration, only the same reference numerals are used. For example, the

coil sheets

10A, 10B and 10C are simply referred to as the coil sheet 10 when there is no particular need to distinguish between them.

As shown in FIG. 4, the coil sheet 10 has a substrate 20, a through hole 30 penetrating the substrate 20 in the stacking direction, and a conductor portion 40.

The substrate 20 is a plate-like member. For example, the substrate 20 is made of an electrically insulating and flexible material. The substrate 20 is configured in an arbitrary shape according to the shape of the housing that constitutes the outer shell of the suction device 100, the shape of the components stored around the electromagnetic induction source 162, and the like. That is, the substrate 20 is not limited to the rectangular shape shown in FIG. 4, and may have any shape such as a circular shape. Moreover, the shapes of the substrates 20 may be different among the laminated substrates 20 .

The conductor part 40 is composed of an arbitrary conductor such as copper. The conductor part 40 may be formed by applying conductive ink on the substrate 20 and curing the ink. Conductive inks include inks containing any substance having conductivity, such as silver nanoparticles. Alternatively, the conductor portion 40 may be formed using a method such as vapor deposition or sputtering. The conductor portion 40 has a first end portion 41 and a second end portion 42 and is arranged on the substrate 20 so as to surround the through hole 30 . In the example shown in FIG. 4, the conductor portion 40 has an annular conductive path 43 intermittent at one point.

The connecting portion 50 is arranged between two coil sheets 10 adjacent to each other in the stacking direction. The connection portion 50 is connected to the second end portion 42 of the conductor portion 40 arranged on the coil sheet 10 located on the upper side in the stacking direction of the two coil sheets 10 adjacent to each other in the stacking direction, and the connection portion 50 on the lower side in the stacking direction. The first end portion 41 of the conductor portion 40 arranged on the coil sheet 10 located on the side is electrically connected. The connecting portion 50 is made of any conductor such as copper. In the example shown in FIG. 3, the connection portion 50A includes the second end portion 42A of the conductor portion 40A arranged on the coil sheet 10A and the first end portion 41B of the conductor portion 40B arranged on the coil sheet 10B. , are connected. The connection portion 50B connects the second end portion 42B of the conductor portion 40B arranged on the coil sheet 10B and the first end portion 41C of the conductor portion 40C arranged on the coil sheet 10C. . The connection portion 50C connects the second end portion 42C of the conductor portion 40C arranged on the coil sheet 10C and the first end portion 41D of the conductor portion 40D arranged on the coil sheet 10D. . According to such a configuration, each of the plurality of annular conductive paths 43 provided in the plurality of laminated coil sheets 10 are connected to each other by the connection portions 50 at intermittent portions to form one coil. becomes possible.

The first end portion 41 of the conductor portion 40 arranged on the coil sheet 10 positioned on the uppermost side in the lamination direction and the second end portion 41 of the conductor portion 40 arranged on the coil sheet 10 positioned on the lowermost side in the lamination direction. The end portion 42 is electrically connected to the power supply portion 111 . In the example shown in FIGS. 2 and 3, the first end portion 41A of the conductor portion 40A arranged on the coil sheet 10A and the second end portion 42B of the conductor portion 40D arranged on the coil sheet 10D are electrically connected to the power supply unit 111 . With such a configuration, the electromagnetic induction source 162 can generate a varying magnetic field using the AC power supplied from the power supply section 111 .

It should be noted that a substrate without the conductor portion 40 may be arranged above the coil sheet 10 positioned on the uppermost side in the stacking direction. In this case, the conductor portion 40 provided on the coil sheet 10 located on the uppermost side in the stacking direction can be covered and protected by the substrate.

As shown in FIG. 3, the plurality of coil sheets 10 are arranged such that the through holes 30 overlap in the stacking direction. In other words, in a state in which the plurality of coil sheets 10 are stacked, the through holes 30 formed in each of the plurality of coil sheets 10 are arranged so as to overlap each other in plan view. With such a configuration, it is possible to form a space 31 surrounded by the stacked through holes 30 . When the electromagnetic induction source 162 is incorporated in the suction device 100, the stick-shaped substrate 150 is inserted into the space 31 formed by the stacked through-holes 30, as shown in FIG.

The holding part 140 may be arranged inside a space 31 formed by a plurality of through holes 30 stacked in the stacking direction. For example, a holding portion 140 formed in a cylindrical shape is arranged so as to fit into the space 31 formed in a cylindrical shape. In that case, the stick-shaped substrate 150 is inserted into the holding portion 140 from top to bottom in the stacking direction. On the other hand, the stick-shaped base material 150 is removed from the holding part 140 from the bottom to the top in the stacking direction.

The shape of the through hole 30 is typically circular as shown in FIG. In addition, the shape of through-hole 30 may be arbitrarily configured according to the outer shape of holding portion 140 arranged in space 31 .

As shown in FIG. 6, the first end 41 is exposed upward in the stacking direction from the substrate 20 . On the other hand, the second end 42 is exposed from the substrate 20 downward in the stacking direction. Specifically, the second end portion 42 penetrates the substrate 20 while the entire conductor portion 40 is arranged on the substrate 20 . With this configuration, of the two coil sheets 10 adjacent in the stacking direction, the second end portion 42 of the conductor portion 40 arranged on the upper coil sheet 10 and the second end portion 42 of the conductor portion 40 arranged on the lower coil sheet 10 are arranged. 40 can be easily connected to the first end 41 of 40 by the connecting portion 50 at the shortest distance.

As described above, according to the present embodiment, a plurality of coil sheets 10 are stacked, and the ends of the conductor portions 40 arranged on two coil sheets 10 adjacent in the stacking direction are connected by the connecting portions 50. Thus, the electromagnetic induction source 162 is configured. Therefore, by thinning the coil sheet 10 or thinning the conductor portion 40, it is possible to easily reduce the size of the electromagnetic induction source 162 while maintaining sufficient heating capacity by maintaining the number of turns of the coil. It becomes possible.

(2) Method for Manufacturing Electromagnetic Induction Source 162 FIG. 7 is a flow chart showing an example of the flow of a manufacturing method for manufacturing the electromagnetic induction source 162 according to this embodiment. Each step of the manufacturing method shown in this flow is executed, for example, by various manufacturing apparatuses installed in factories. The manufacturing apparatus that performs each step may be different for each step. Also, one step may be executed by multiple types of manufacturing equipment.

As shown in FIG. 7, the manufacturing apparatus first forms a plurality of coil sheets 10 (step S102). At that time, the manufacturing apparatus provides a through hole 30 in the substrate 20, and arranges the conductor portion 40 having a first end portion 41 and a second end portion 42 at both ends so as to surround the through hole 30. , forming each of the plurality of coil sheets 10 . Through this step, for example, the coil sheets 10A to 10D described with reference to FIGS. 2 to 6 are formed.

Next, the manufacturing device stacks a plurality of coil sheets 10 in the stacking direction (step S104). At that time, the manufacturing apparatus arranges the through holes 30 formed in each of the plurality of coil sheets 10 so as to overlap in the stacking direction. By this step, for example, the coil sheets 10A to 10D are laminated as shown in FIG.

Then, the manufacturing apparatus provides the second end portion 42 of the conductor portion 40 arranged on the coil sheet 10 located on the upper side in the stacking direction of the two coil sheets 10 adjacent to each other in the stacking direction, and the second end portion 42 of the conductor portion 40 on the lower side in the stacking direction. All combinations of two adjacent coil sheets 10 in the stacking direction are electrically connected to the first end portions 41 of the conductor portions 40 arranged on the coil sheets 10 positioned in the stacking direction (step S106 ). In this step, for example, the conductor portions 40 of each of the combination of the coil sheet 10A and the coil sheet 10B, the combination of the coil sheet 10B and the coil sheet 10C, and the combination of the coil sheet 10C and the coil sheet 10D are electrically connected to each other. connected As a result, the electromagnetic induction source 162 shown in FIG. 2 and the like is manufactured.

The electromagnetic induction source 162 according to this embodiment is manufactured by the manufacturing method described above. According to the manufacturing method described above, the electromagnetic induction source 162 can be manufactured by simply stacking the coil sheets 10 and electrically connecting the conductor portions 40 adjacent to each other in the stacking direction. Therefore, it is possible to manufacture the coil simply and precisely as compared with the method of manufacturing the coil by winding the conductive wire around the cylindrical winding shaft.

<4. Variation>
(1) First Modified Example This modified example is an example in which a sealing portion is arranged to fill the gap between two coil sheets 10 adjacent to each other in the stacking direction. This modification will be described with reference to FIGS. 8 and 9. FIG.

-First Example FIG. 8 is a cross-sectional view showing an example of a cross section taken along the line AA shown in FIG. 2 of the electromagnetic induction source 162 according to the present modification. As shown in FIG. 8, the electromagnetic induction source 162 may include one or more first seals 61 (61A-61C). The first sealing portion 61 seals the gap between two coil sheets 10 adjacent in the stacking direction on the side closer to the through hole 30 than the conductor portion 40 . For example, the first sealing portion 61 may be configured in an annular shape and connect the through holes 30 formed in two coil sheets 10 adjacent to each other in the stacking direction. According to such a configuration, foreign matter such as aerosol generated from the stick-shaped base material 150 can be prevented from flowing from the inside of the through-hole 30 to the conductor portion 40 side. This makes it possible to prevent deterioration of the conductor portion 40 .

A space 31 formed by a plurality of through-holes 30 stacked in the stacking direction and one or more first sealing portions 61 may function as an internal space 141 of the holding portion 140 . In other words, the holding portion 140 may be composed of a plurality of through holes 30 and one or more first sealing portions 61 stacked in the stacking direction. According to this configuration, it is not necessary to separately arrange the holding portion 140 in the space 31, so that the suction device 100 can be further miniaturized.

—Second Example FIG. 9 is a cross-sectional view showing another example of the cross section taken along the line AA shown in FIG. 2 of the electromagnetic induction source 162 according to this modification. As shown in FIG. 9, electromagnetic induction source 162 may include one or more second seals 62 (62A-62C). The second sealing portion 62 seals the gap between the two coil sheets 10 adjacent in the stacking direction on the side farther from the through hole 30 than the conductor portion 40 . For example, the first sealing portion 61 is configured in an annular shape and arranged so as to cover the outer periphery of the conductor portion 40 . According to such a configuration, foreign matter such as dust and water droplets can be prevented from flowing from the outside of the electromagnetic induction source 162 to the conductor portion 40 side. This makes it possible to prevent deterioration of the conductor portion 40 .

- Supplementary Note that the electromagnetic induction source 162 may have both the first sealing portion 61 and the second sealing portion 62 .

(2) Second Modification This modification is an example in which a plurality of conductive paths 43 are provided in the conductor portion 40 . This modification will be described with reference to FIG.

FIG. 10 is a top view showing an example of the configuration of the coil sheet 10 according to this modified example. As shown in FIG. 10 , the conductor portion 40 may have a plurality of conductive paths 43 between the first end portion 41 and the second end portion 42 . In the example shown in FIG. 10, the conductor portion 40 has two conductive paths 43, a conductive path 43-1 and a conductive path 43-2. A plurality of conductive paths 43 may be arranged in parallel so as to be separated from each other in a direction orthogonal to the stacking direction. In the example shown in FIG. 10, each of the conductive path 43-1 and the conductive path 43-2 is formed in an annular shape and arranged in parallel in the radial direction of the through hole 30. In the example shown in FIG. According to such a configuration, it is possible to increase the magnetic flux intensity of the varying magnetic field generated from the electromagnetic induction source 162 by increasing the amount of electricity supplied to the electromagnetic induction source 162 . This makes it possible to raise the temperature of the susceptor 161 more rapidly.

(3) Third Modification This modification is an example in which the length of the connection portion 50 is minimized by shifting the arrangement of the conductor portions 40 between the two laminated coil sheets 10 . This modification will be described with reference to FIGS. 11 and 12. FIG.

FIG. 11 is a top view showing an example of two adjacent coil sheets 10 in the stacking direction among the plurality of coil sheets 10 included in the electromagnetic induction source 162 according to this modification. It is assumed that the coil sheet 10B is laminated under the coil sheet 10A. FIG. 12 is a sectional view of the coil sheet 10A and the coil sheet 10B extracted from the section of the electromagnetic induction source 162 according to the present modification taken along the CC section line shown in FIG.

As shown in FIGS. 11 and 12, two coil sheets 10 adjacent in the stacking direction are composed of a second end portion 42A of a conductor portion 40A disposed on the coil sheet 10A located on the upper side in the stacking direction, and a second end portion 42A of the conductor portion 40A. and the first end portion 41B of the conductor portion 40B arranged on the coil sheet 10B positioned below the are arranged so as to substantially overlap in the stacking direction. In other words, with the coil sheet 10A and the coil sheet 10B stacked, the second end 42A and the first end 41B are arranged to overlap each other in plan view. Here, substantially overlapping in the stacking direction means that at least a portion of the second end portion 42A and at least a portion of the first end portion 41B overlap in the stacking direction. According to such a configuration, the first end portion 41B is positioned directly below the second end portion 42A. Therefore, in this modification, compared with the example shown in FIG. 6, the length of the connection part 50 can be shortened. Moreover, in this modified example, the second end portion 42A and the first end portion 41B can be easily connected by, for example, welding. Therefore, in this modified example, the electromagnetic induction source 162 can be manufactured more easily than the example shown in FIG.

<5. Supplement>
Although the preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to such examples. It is clear that a person having ordinary knowledge in the technical field to which the present invention belongs can conceive of various modifications or modifications within the scope of the technical idea described in the claims. It is understood that these also belong to the technical scope of the present invention.

For example, in the above embodiment, an example in which the conductor part 40 is arranged on the substrate 20 has been described, but the present invention is not limited to this example. The conductor portion 40 may be embedded inside the substrate 20 . Even in that case, the first end portion 41 may be exposed from the substrate 20 upward in the stacking direction, and the second end portion 42 may be exposed from the substrate 20 downward in the stacking direction.

For example, in the above embodiment, an example in which the susceptor 161 is a metal piece has been described, but the present invention is not limited to this example. For example, the susceptor 161 may be formed in an elongated shape such as a rod shape, a cylinder shape, or a plate shape. In that case, the susceptor 161 is desirably arranged in the center of the base member 151 along the longitudinal direction of the base member 151 . According to such a configuration, the susceptor 161 that generates high heat by induction heating is arranged in the center of the base material portion 151, so it is possible to generate an aerosol in a short time after the start of heating. Of course, susceptors 161 formed in a plurality of types of shapes may be mixed in base material portion 151 .

For example, in the above embodiment, an example in which the base material portion 151 contains the susceptor 161 has been described, but the present invention is not limited to this example. That is, the susceptor 161 can be placed at any location where the susceptor 161 is in thermal proximity to the aerosol source. As an example, the susceptor 161 may be configured in a blade shape and arranged to protrude from the bottom portion 143 of the holding portion 140 into the internal space 141 . Then, when the stick-shaped base material 150 is inserted into the holding part 140, the blade-shaped susceptor 161 may be inserted so as to pierce the base part 151 from the end of the stick-shaped base material 150 in the insertion direction. . As another example, the susceptor 161 may be arranged on the inner wall of the holding part 140 forming the inner space 141 .

For example, in the above embodiment, an example in which one electromagnetic induction source 162 is incorporated in the suction device 100 has been described, but the present invention is not limited to such an example. Multiple electromagnetic induction sources 162 may be incorporated into the suction device 100 .

For example, in the above embodiment, an example in which the electromagnetic induction source 162 is incorporated into the suction device 100 so that the upper side in the stacking direction is the side closer to the opening 142 and the lower side in the stacking direction is the side farther from the opening 142 has been described. , the invention is not limited to such examples. For example, the electromagnetic induction source 162 may be incorporated into the suction device 100 such that the upper side in the stacking direction is the side farther from the opening 142 and the lower side in the stacking direction is the side closer to the opening 142 . In this case, the conductor portion 40 positioned closest to the opening 142 (that is, the bottom layer) is covered with the substrate 20 when viewed from the opening 142 side, so that the conductor portion 40 can be protected. Become.

A series of processes by each device described in this specification may be implemented using software, hardware, or a combination of software and hardware. Programs that make up the software are stored in advance in, for example, recording media (non-transitory media) provided inside or outside each device. Each program, for example, is read into a RAM when executed by a computer that controls each device described in this specification, and is executed by a processor such as a CPU. The recording medium is, for example, a magnetic disk, an optical disk, a magneto-optical disk, a flash memory, or the like. Also, the above computer program may be distributed, for example, via a network without using a recording medium.

Also, the processes described using the flowcharts and sequence diagrams in this specification do not necessarily have to be executed in the illustrated order. Some processing steps may be performed in parallel. Also, additional processing steps may be employed, and some processing steps may be omitted.

The following configuration also belongs to the technical scope of the present invention.
(1)
a power supply unit that supplies electric power;
a housing portion capable of housing a substrate containing an aerosol source and a susceptor thermally adjacent to the aerosol source in an internal space;
an electromagnetic induction source that generates a varying magnetic field in the internal space using power supplied from the power supply;
with
The electromagnetic induction source is
a plurality of laminated coil sheets;
one or more connections;
with
The coil sheet is
a substrate;
a through hole penetrating the substrate in the stacking direction;
a conductor having a first end and a second end and disposed on the substrate so as to surround the through hole;
has
The connection portion includes the second end portion of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction of the two coil sheets adjacent to each other in the stacking direction, and the second end portion in the stacking direction. electrically connecting the first end portion of the conductor portion arranged on the coil sheet located on the lower side;
The first end portion of the conductor portion arranged on the coil sheet positioned on the uppermost side in the lamination direction, and the conductor portion arranged on the coil sheet positioned on the lowermost side in the lamination direction. the second end is electrically connected to the power source;
suction device.
(2)
The plurality of coil sheets are arranged such that the through holes overlap in the stacking direction.
The suction device according to (1) above.
(3)
The electromagnetic induction source includes one or more first seals,
The first sealing portion seals a gap between the two coil sheets adjacent to each other in the stacking direction on a side closer to the through hole than the conductor portion.
The suction device according to (2) above.
(4)
The electromagnetic induction source includes one or more second seals,
The second sealing portion seals a gap between the two coil sheets adjacent to each other in the stacking direction on a side farther from the through hole than the conductor portion.
The suction device according to (2) or (3) above.
(5)
The housing portion is arranged inside a space formed by the plurality of through holes stacked in the stacking direction,
The suction device according to any one of (2) to (4) above.
(6)
The housing portion is configured by a plurality of the through holes and one or more of the first sealing portions stacked in the stacking direction,
The suction device according to (3) above.
(7)
The conductor portion has a plurality of conductive paths between the first end and the second end,
The suction device according to any one of (1) to (6) above.
(8)
The plurality of conductive paths are arranged in parallel so as to be separated in a direction orthogonal to the stacking direction,
The suction device according to (7) above.
(9)
the first end exposed upward in the stacking direction from the substrate;
wherein the second end is exposed downward from the substrate in the stacking direction;
The suction device according to any one of (1) to (8) above.
(10)
The two coil sheets adjacent to each other in the stacking direction have the second end portion of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction and the second end portion of the conductor portion located on the lower side in the stacking direction. The first ends of the conductors arranged on the coil sheet are arranged so as to substantially overlap in the stacking direction,
The suction device according to any one of (1) to (8) above.
(11)
An electromagnetic induction source that uses supplied power to generate a varying magnetic field,
a plurality of laminated coil sheets;
one or more connections;
with
The coil sheet is
a substrate;
a through hole penetrating the substrate in the stacking direction;
a conductor having a first end and a second end and disposed on the substrate so as to surround the through hole;
has
The connection portion includes the second end portion of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction of the two coil sheets adjacent to each other in the stacking direction, and the second end portion in the stacking direction. electrically connecting the first end portion of the conductor portion arranged on the coil sheet located on the lower side;
The first end of the coil sheet located on the uppermost side in the lamination direction and the second end of the coil sheet located on the lowermost side in the lamination direction serve as a power supply for supplying electric power. electrically connected,
source of electromagnetic induction.
(12)
A manufacturing method for manufacturing an electromagnetic induction source that uses supplied power to generate a varying magnetic field, comprising:
a substrate, a through hole penetrating through the substrate in a stacking direction, and a conductor having a first end portion and a second end portion as both ends and arranged in the substrate so as to surround the through hole. forming a coil sheet of
laminating a plurality of the coil sheets in the lamination direction;
Of the two coil sheets adjacent to each other in the stacking direction, the second end of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction and the second end portion of the conductor portion located on the lower side in the stacking direction electrically connecting the first ends of the conductors arranged on the coil sheets by connecting portions for all combinations of the two coil sheets adjacent to each other in the stacking direction; ,
A method of manufacturing an electromagnetic induction source, comprising:
(13)
A system comprising a suction device and a substrate,
the substrate contains an aerosol source;
The suction device is
a power supply unit that supplies electric power;
a housing portion capable of housing a susceptor in thermal proximity to the substrate and the aerosol source in an internal space;
an electromagnetic induction source that generates a varying magnetic field in the internal space using power supplied from the power supply;
with
The electromagnetic induction source is
a plurality of laminated coil sheets;
one or more connections;
with
The coil sheet is
a substrate;
a through hole penetrating the substrate in the stacking direction;
a conductor having a first end and a second end and disposed on the substrate so as to surround the through hole;
has
The connection portion includes the second end portion of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction of the two coil sheets adjacent to each other in the stacking direction, and the second end portion in the stacking direction. electrically connecting the first end portion of the conductor portion arranged on the coil sheet located on the lower side;
The first end portion of the conductor portion arranged on the coil sheet positioned on the uppermost side in the lamination direction, and the conductor portion arranged on the coil sheet positioned on the lowermost side in the lamination direction. the second end is electrically connected to the power source;
system.

100 suction device 111 power supply unit 112 sensor unit 113 notification unit 114 storage unit 115 communication unit 116 control unit 140 holding unit 141 internal space 142 opening 143 bottom 150 stick-shaped substrate 151 substrate 152 mouthpiece 161 susceptor 162 electromagnetic induction source 10 Coil sheet 20 Substrate 30 Through hole 31 Space 40 Conductor 41 First end 42 Second end 43 Conductive path 50 Connecting part 61 First sealing part 62 Second sealing part

Claims

a power supply unit that supplies electric power;
a housing portion capable of housing a substrate containing an aerosol source and a susceptor thermally adjacent to the aerosol source in an internal space;
an electromagnetic induction source that generates a varying magnetic field in the internal space using power supplied from the power supply;
with
The electromagnetic induction source is
a plurality of laminated coil sheets;
one or more connections;
with
The coil sheet is
a substrate;
a through hole penetrating the substrate in the stacking direction;
a conductor having a first end and a second end and disposed on the substrate so as to surround the through hole;
has
The connection portion includes the second end portion of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction of the two coil sheets adjacent to each other in the stacking direction, and the second end portion in the stacking direction. electrically connecting the first end portion of the conductor portion arranged on the coil sheet located on the lower side;
The first end portion of the conductor portion arranged on the coil sheet positioned on the uppermost side in the lamination direction, and the conductor portion arranged on the coil sheet positioned on the lowermost side in the lamination direction. the second end is electrically connected to the power source;
suction device.
The plurality of coil sheets are arranged such that the through holes overlap in the stacking direction.
A suction device according to claim 1 .
The electromagnetic induction source includes one or more first seals,
The first sealing portion seals a gap between the two coil sheets adjacent to each other in the stacking direction on a side closer to the through hole than the conductor portion.
A suction device according to claim 2.
The electromagnetic induction source includes one or more second seals,
The second sealing portion seals a gap between the two coil sheets adjacent to each other in the stacking direction on a side farther from the through hole than the conductor portion.
A suction device according to claim 2 or 3.
The housing portion is arranged inside a space formed by the plurality of through holes stacked in the stacking direction,
A suction device according to any one of claims 2-4.
The housing portion is configured by a plurality of the through holes and one or more of the first sealing portions stacked in the stacking direction,
A suction device according to claim 3.
The conductor portion has a plurality of conductive paths between the first end and the second end,
A suction device according to any one of claims 1-6.
The plurality of conductive paths are arranged in parallel so as to be separated in a direction orthogonal to the stacking direction,
A suction device according to claim 7.
the first end exposed upward in the stacking direction from the substrate;
wherein the second end is exposed downward from the substrate in the stacking direction;
A suction device according to any one of claims 1-8.
The two coil sheets adjacent to each other in the stacking direction have the second end portion of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction and the second end portion of the conductor portion located on the lower side in the stacking direction. The first ends of the conductors arranged on the coil sheet are arranged so as to substantially overlap in the stacking direction,
A suction device according to any one of claims 1-8.
An electromagnetic induction source that uses supplied power to generate a varying magnetic field,
a plurality of laminated coil sheets;
one or more connections;
with
The coil sheet is
a substrate;
a through hole penetrating the substrate in the stacking direction;
a conductor having a first end and a second end and disposed on the substrate so as to surround the through hole;
has
The connection portion includes the second end portion of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction of the two coil sheets adjacent to each other in the stacking direction, and the second end portion in the stacking direction. electrically connecting the first end portion of the conductor portion arranged on the coil sheet located on the lower side;
The first end of the coil sheet located on the uppermost side in the lamination direction and the second end of the coil sheet located on the lowermost side in the lamination direction serve as a power supply for supplying electric power. electrically connected,
source of electromagnetic induction.
A manufacturing method for manufacturing an electromagnetic induction source that uses supplied power to generate a varying magnetic field, comprising:
a substrate, a through hole penetrating through the substrate in a stacking direction, and a conductor having a first end portion and a second end portion as both ends and arranged in the substrate so as to surround the through hole. forming a coil sheet of
laminating a plurality of the coil sheets in the lamination direction;
Of the two coil sheets adjacent to each other in the stacking direction, the second end of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction and the second end portion of the conductor portion located on the lower side in the stacking direction electrically connecting the first ends of the conductors arranged on the coil sheets by connecting portions for all combinations of the two coil sheets adjacent to each other in the stacking direction; ,
A method of manufacturing an electromagnetic induction source, comprising:
A system comprising a suction device and a substrate,
the substrate contains an aerosol source;
The suction device is
a power supply unit that supplies electric power;
a housing portion capable of housing a susceptor in thermal proximity to the substrate and the aerosol source in an internal space;
an electromagnetic induction source that generates a varying magnetic field in the internal space using power supplied from the power supply;
with
The electromagnetic induction source is
a plurality of laminated coil sheets;
one or more connections;
with
The coil sheet is
a substrate;
a through hole penetrating the substrate in the stacking direction;
a conductor having a first end and a second end and disposed on the substrate so as to surround the through hole;
has
The connection portion includes the second end portion of the conductor portion disposed on the coil sheet located on the upper side in the stacking direction of the two coil sheets adjacent to each other in the stacking direction, and the second end portion in the stacking direction. electrically connecting the first end portion of the conductor portion arranged on the coil sheet located on the lower side;
The first end portion of the conductor portion arranged on the coil sheet positioned on the uppermost side in the lamination direction, and the conductor portion arranged on the coil sheet positioned on the lowermost side in the lamination direction. the second end is electrically connected to the power source;
system.