WO2025104791A1 - Suction device - Google Patents

Abstract

[Problem] To provide a mechanism capable of further improving the quality of user experience. [Solution] A suction device includes: a cylindrical body capable of storing a base material containing an aerosol source; an adhesive layer arranged outside a side wall of the cylindrical body and bonded to members arranged on both inner and outer sides; an electrically insulating layer arranged outside the adhesive layer and bonded to a side wall of the cylindrical body by the adhesive layer; a heat generating part arranged outside the insulating layer; and a conductive part arranged outside the insulating layer and conducting power to the heat generating part. Heat transfer property of a first adhesive layer corresponding to a position of the heat generating part in the adhesive layer is higher than heat transfer property of a second adhesive layer corresponding to a position of the conductive part in the adhesive layer.

Description

suction device

This disclosure relates to a suction device.

Inhalation devices that generate a substance to be inhaled by a user are widely used. For example, an inhalation device generates an aerosol imparted with a flavor component using a base material that includes an aerosol source for generating an aerosol and a flavor source for imparting a flavor component to the generated aerosol. A user can taste the flavor by inhaling the aerosol imparted with a flavor component generated by the inhalation device. The action of a user inhaling an aerosol is hereinafter also referred to as a puff or a puffing action. One example of a device classified as an inhalation device is one that is used instead of so-called cigarettes, such as a heated tobacco product. A heated tobacco product is a type of inhalation device that generates an aerosol by heating an aerosol source.

Various technologies related to heated tobacco products have been developed. For example, the following Patent Document 1 discloses a technology in which a coating of an electrically insulating material is formed on the surface of a heating chamber having an opening for receiving a substrate, and a coating of an electrically conductive material that acts as a Joule heater is further formed on top of that.

International Publication No. 2022/167261

However, the technology disclosed in the above-mentioned Patent Document 1 has only recently been developed, and there is still room for improvement in various respects.

The present disclosure has been made in light of the above problems, and the purpose of the present disclosure is to provide a mechanism that can further improve the quality of the user experience.

In order to solve the above problem, according to one aspect of the present disclosure, there is provided a suction device comprising: a cylindrical body capable of accommodating a substrate containing an aerosol source; an adhesive layer disposed on the outside of a side wall of the cylindrical body and adhered to members disposed on both the inside and outside; an electrical insulating layer disposed on the outside of the adhesive layer and adhered to the side wall of the cylindrical body by the adhesive layer; a heat generating portion disposed on the outside of the insulating layer; and a conductive portion disposed on the outside of the insulating layer for conducting power to the heat generating portion, wherein the thermal conductivity of a first adhesive layer of the adhesive layer corresponding to the position of the heat generating portion is higher than the thermal conductivity of a second adhesive layer of the adhesive layer corresponding to the position of the conductive portion.

The first adhesive layer may be uniformly configured, and the second adhesive layer may be sparsely configured.

The second adhesive layer may be configured in a mesh shape.

The second adhesive layer may be configured in a dot pattern.

The second adhesive layer may be thinner than the first adhesive layer.

The first adhesive layer and the second adhesive layer may be configured to be spaced apart.

One end of the conductive part may be connected to the heat generating part, and the other end of the conductive part may be connected to a conductor that supplies power to the heat generating part, and a portion of the second adhesive layer that corresponds to a contact point between the conductive part and the conductor and a portion of the second adhesive layer that corresponds to a part other than the contact point of the conductive part may be configured to be separated from each other.

The first adhesive layer and the second adhesive layer may be made of the same material.

The edges of the adhesive layer may be tapered.

The sidewall of the cylindrical body may include a plurality of flat plates, and at least a portion of the adhesive layer, the insulating layer, the heating portion, and the conductive portion may be disposed outside the flat plates.

The first adhesive layer may be disposed so as to cover the outer periphery of the side wall of the cylindrical body, and the thermal conductivity of the first adhesive layer may be higher than the thermal conductivity of the cylindrical body.

The thermal conductivity of the second adhesive layer may be lower than the thermal conductivity of the cylindrical body.

As explained above, this disclosure provides a mechanism that can further improve the quality of the user experience.

FIG. 2 is a schematic diagram showing a configuration example of a suction device. FIG. 1 is a diagram illustrating an example of a configuration of a heating system of a suction apparatus according to an embodiment of the present disclosure. 3 is a diagram showing the heating system shown in FIG. 2 cut along the line AA as viewed from above in cross section. 3 is a diagram showing a configuration of a storage unit of the heating system shown in FIG. 2 . FIG. 5 is a diagram showing a state in which an adhesive layer is laminated on the housing portion shown in FIG. 4 . FIG. 6 is a diagram showing a state in which an electrical insulating layer is laminated on the adhesive layer shown in FIG. 5 . FIG. 11 is a diagram showing another example of the configuration of the adhesive layer. FIG. 11 is a diagram showing another example of the configuration of the adhesive layer. FIG. 11 is a diagram showing another example of the configuration of the adhesive layer. FIG. 11 is a diagram showing another example of the configuration of the adhesive layer. FIG. 11 is a diagram showing another example of the configuration of a heating system.

Below, a preferred embodiment of the present disclosure will be described in detail with reference to the attached drawings. Note that in this specification and drawings, components having substantially the same functional configurations are designated by the same reference numerals to avoid redundant description.

1. Configuration example of suction device
The inhalation device is a device that generates a substance to be inhaled by a user. In the following description, the substance generated by the inhalation device is described as an aerosol. Alternatively, the substance generated by the inhalation device may be a gas.

FIG. 1 is a schematic diagram showing an example of the configuration of a suction device. As shown in FIG. 1, the suction device 100 according to this example configuration includes a power supply unit 111, a sensor unit 112, a notification unit 113, a memory unit 114, a communication unit 115, a control unit 116, a heating unit 40, a storage unit 50, and a heat insulating unit 70.

The power supply unit 111 stores power. The power supply unit 111 supplies power to each component of the suction device 100 under the control of the control unit 116. The power supply unit 111 may be configured, for example, by a rechargeable battery such as a lithium ion secondary battery.

The sensor unit 112 acquires various information related to the suction device 100. As one example, the sensor unit 112 is configured with a pressure sensor such as a condenser microphone, a flow rate sensor, or a temperature sensor, and acquires values associated with suction by the user. As another example, the sensor unit 112 is configured with an input device such as a button or switch that accepts information input from the user.

The notification unit 113 notifies the user of information. The notification unit 113 is composed of, for example, a light-emitting device that emits light, a display device that displays an image, a sound output device that outputs sound, or a vibration device that vibrates.

The storage unit 114 stores various information for the operation of the suction device 100. The storage unit 114 is configured, for example, from a non-volatile storage medium such as a flash memory.

The communication unit 115 is a communication interface capable of performing communication conforming to any wired or wireless communication standard. Such communication standards may include, for example, standards using Wi-Fi (registered trademark), Bluetooth (registered trademark), BLE (Bluetooth Low Energy (registered trademark)), NFC (Near Field Communication), or LPWA (Low Power Wide Area).

The control unit 116 functions as an arithmetic processing unit and a control unit, and controls the overall operation of the suction device 100 in accordance with various programs. The control unit 116 is realized by an electronic circuit such as a CPU (Central Processing Unit) or a microprocessor.

The storage unit 50 is a member configured to store the stick-shaped substrate 150. More specifically, the storage unit 50 has an internal space 80, and holds the stick-shaped substrate 150 while storing a part of the stick-shaped substrate 150 in the internal space 80. The storage unit 50 has an opening 52 that connects the internal space 80 to the outside, and stores the stick-shaped substrate 150 inserted into the internal space 80 through the opening 52. For example, the storage unit 50 is a cylindrical body with the opening 52 and the bottom wall 56 at both ends, and defines a columnar internal space 80. The storage unit 50 may be connected to an air flow path that supplies air to the internal space 80. The air inlet hole, which is the inlet of air to the air flow path, is arranged, for example, on the side of the suction device 100. The air outlet hole, which is the outlet of air from the air flow path to the internal space 80, is arranged, for example, on the bottom wall 56.

The stick-type substrate 150 includes a substrate portion 151 and a mouthpiece portion 152. The substrate portion 151 includes an aerosol source. The aerosol source includes a flavor component derived from tobacco or non-tobacco. When the inhalation device 100 is a medical inhaler such as a nebulizer, the aerosol source may include a medicine. The aerosol source may be, for example, a liquid such as polyhydric alcohol such as glycerin and propylene glycol, and water, which includes a flavor component derived from tobacco or non-tobacco, or may be a solid containing a flavor component derived from tobacco or non-tobacco. When the stick-type substrate 150 is held in the storage portion 50, at least a part of the substrate portion 151 is stored in the internal space 80, and at least a part of the mouthpiece portion 152 protrudes from the opening 52. When the user holds the mouthpiece portion 152 protruding from the opening 52 in his/her mouth and inhales, air flows into the internal space 80 via an air flow path (not shown) and reaches the user's mouth together with the aerosol generated from the substrate portion 151.

The heating unit 40 generates an aerosol by heating the aerosol source and atomizing the aerosol source. In the example shown in FIG. 1, the heating unit 40 is configured in a film shape and is arranged to cover the outer periphery of the storage unit 50. When the heating unit 40 generates heat, the substrate unit 151 of the stick-shaped substrate 150 is heated from the outer periphery, and an aerosol is generated. The heating unit 40 generates heat when power is supplied from the power supply unit 111. As an example, power may be supplied when the sensor unit 112 detects that the user has started inhaling and/or that specific information has been input. Power supply may be stopped when the sensor unit 112 detects that the user has stopped inhaling and/or that specific information has been input.

The insulating section 70 prevents heat transfer from the heating section 40 to other components. For example, the insulating section 70 is made of a vacuum insulating material or an aerogel insulating material.

The above describes an example of the configuration of the suction device 100. Of course, the configuration of the suction device 100 is not limited to the above, and various configurations such as those exemplified below are possible.

As an example, the storage unit 50 may include an opening/closing mechanism such as a hinge that opens and closes a portion of the outer shell that forms the internal space 80. The storage unit 50 may then open and close the outer shell to accommodate the stick-shaped substrate 150 inserted into the internal space 80 while clamping it. In this case, the heating unit 40 may be provided at the clamping location in the storage unit 50, and may heat the stick-shaped substrate 150 while pressing it.

The intake and exhaust form of the storage section 50 may be a so-called counterflow. In that case, air flows into the internal space 80 from the opening 52 as the user puffs. The air then passes through the inside of the stick-shaped substrate 150 from the tip of the stick-shaped substrate 150 and reaches the user's mouth together with the aerosol.

Stick-type substrate 150 is an example of an aerosol-generating substrate that contains an aerosol source. Inhalation device 100 and stick-type substrate 150 work together to generate an aerosol that is inhaled by the user. Therefore, the combination of inhalation device 100 and stick-type substrate 150 may be considered as an aerosol-generating system.

2. Technical features
2 to 6, an example of the configuration of the heating system 30 of the suction device 100 according to this embodiment will be described below. The heating system 30 is a system consisting of components involved in heating the stick-type substrate 150. The heating system 30 includes at least a heating unit 40 and a storage unit 50.

FIG. 2 is a diagram showing an example of the configuration of the heating system 30 of the suction device 100 according to this embodiment. FIG. 3 is a diagram showing the cross section of the heating system 30 shown in FIG. 2 cut along the cutting line A-A and viewed from above. As shown in FIGS. 2 and 3, the heating system 30 is constructed by laminating an adhesive layer 60 and a heating section 40 on a housing section 50. The heating section 40 includes an electrical insulation layer 41, a resistive heating layer 42 (42a and 42b), and an electrical contact 43.

FIG. 4 is a diagram showing the configuration of the storage section 50 of the heating system 30 shown in FIG. 2. FIG. 5 is a diagram showing the state where an adhesive layer 60 is laminated on the storage section 50 shown in FIG. 4. FIG. 6 is a diagram showing the state where an electrical insulation layer 41 is laminated on the adhesive layer 60 shown in FIG. 5. FIGS. 4 to 6 can also be interpreted as showing the heating system 30 in the middle of its manufacture. The heating system 30 shown in FIG. 2 is constructed by laminating the adhesive layer 60 on the storage section 50 shown in FIG. 4 as shown in FIG. 5, then laminating the electrical insulation layer 41 as shown in FIG. 6, and then laminating the resistive heating layer 42 and electrical contacts 43 as shown in FIG. 2.

As shown in Figures 3 and 4, the storage section 50 is a cylindrical body having side walls 54 (54a to 54c), a bottom wall 56 connected to one end of the side walls 54, and an opening 52 provided at the other end of the side walls 54. The stick-shaped substrate 150 is inserted into the storage section 50 from the opening 52, and is stored in the internal space 80 surrounded by the side walls 54 and the bottom wall 56. The storage section 50 is preferably made of a metal with high thermal conductivity, and may be made of, for example, SUS (steel use stainless steel). This allows the stick-shaped substrate 150 to be heated efficiently.

The stick-shaped substrate 150 is inserted and removed along the axial direction of the cylindrical storage section 50. Within the axial direction, the direction in which the stick-shaped substrate 150 is inserted is also referred to as "down," and the direction in which the stick-shaped substrate 150 is removed is also referred to as "up." The axial direction is also referred to as the "up-down" direction. The up-down direction may be the longitudinal direction of the storage section 50. Among the directions perpendicular to the up-down direction, the direction toward the central axis of the storage section 50 is also referred to as "inner," and the direction away from the central axis is also referred to as "outer."

As shown in FIG. 3, the bottom wall 56 may have a through hole 56a. The through hole 56a is connected to an air flow path that supplies air to the internal space 80.

As shown in Figures 3 and 4, the side walls 54 include two side walls 54a whose outer and inner surfaces are flat, four side walls 54b whose outer and inner surfaces are curved outward, and two side walls 54c whose outer and inner surfaces are curved outward. The side walls 54 may have a uniform thickness. For example, the side wall 54a may be a flat plate. Also, the side walls 54b and 54c may be curved plates that are curved outward.

As shown in FIG. 3, the two side walls 54a are arranged in positions facing each other. The two side walls 54c are also arranged in positions facing each other. The four side walls 54b are arranged between the side walls 54a and 54c. The distance between the two opposing side walls 54a is smaller than the width of the stick-shaped substrate 150 inserted into the storage section 50. With this configuration, the two opposing side walls 54a can hold the stick-shaped substrate 150 stored in the storage section 50 while pressing it from the outside.

As shown in Figures 2 and 3, the heating unit 40 is disposed outside the storage unit 50. Therefore, when the heating unit 40 generates heat, the storage unit 50 is heated from the outside, and the stick-shaped substrate 150 is heated by heat transfer from the storage unit 50. This makes it possible to generate an aerosol from the stick-shaped substrate 150.

In particular, as shown in FIG. 3, the two heating units 40 are disposed on the outside of the two side walls 54a. With this configuration, the heating system 30 can efficiently heat the stick-shaped substrate 150 at the pressed location while pressing the stick-shaped substrate 150 so as to sandwich it between the two side walls 54a.

As shown in FIG. 2, the heating unit 40 has a heat generating region 44 and a non-heat generating region 45. The heat generating region 44 is a region that generates heat when a current flows through the heating unit 40. The non-heat generating region 45 is a region that does not generate heat or generates very little heat when a current flows through the heating unit 40.

The above describes the configuration of the storage unit 50 and the general configuration of the heating unit 40. Next, the configuration of the adhesive layer 60 used to laminate the heating unit 40 to the storage unit 50 and the detailed configuration of the heating unit 40 will be described.

2 to 6, an adhesive layer 60 is laminated on the outside of the sidewall 54 of the storage section 50. In particular, as shown in FIGS. 3 and 5, the first adhesive layer 61, which is the portion of the adhesive layer 60 corresponding to the position of the heat generating region 44 (i.e., the portion where the heat generating region 44 of the heating section 40 is laminated), is laminated so as to cover the entire outer periphery of the storage section 50, including the sidewalls 54a, 54b, and 54c. On the other hand, as shown in FIG. 5, the second adhesive layer 62, which is the portion of the adhesive layer 60 corresponding to the position of the non-heat generating region 45 (i.e., the portion where the non-heat generating region 45 of the heating section 40 is laminated), is laminated only on the outside of the sidewall 54a.

The adhesive layer 60 is a member that adheres to members arranged on both the inside and outside, and adheres the storage section 50 and the heating section 40. In the example shown in Figures 2 to 6, the adhesive layer 60 adheres the side wall 54a laminated on the inside of the adhesive layer 60 to the electrical insulation layer 41 laminated on the outside of the adhesive layer 60. An example of a material that constitutes the adhesive layer 60 is silver or a silver compound. The adhesive layer 60 may be laminated using a deposition process or a printing process. The deposition process is a process in which a substance is evaporated toward the surface of the target object to form a thin film coating. The printing process is a process in which a liquid is sprayed toward the surface of the target object to form a thin film coating.

In the configuration examples shown in Figures 2 to 6, it is desirable that at least the first adhesive layer 61 is made of a material having electrical conductivity. With such a configuration, as described below, it is possible to pass electricity through the heating unit 40 via the first adhesive layer 61.

The first adhesive layer 61 and the second adhesive layer 62 may be made of the same material. This configuration makes it easier to stack the adhesive layers 60, thereby improving the manufacturing precision of the suction device 100.

As shown in FIG. 6, an electrical insulating layer 41 is laminated on the outside of the side wall 54 of the storage section 50. In particular, the electrical insulating layer 41 is laminated on the portion of the side wall 54a where the adhesive layer 60 is laminated, and is adhered to the side wall 54a of the storage section 50 by the adhesive layer 60. The electrical insulating layer 41 is a member having a predetermined electrical insulating property. Examples of materials constituting the electrical insulating layer 41 include glass and ceramics. The electrical insulating layer 41 may be laminated using a deposition process or a printing process.

As shown in Figures 2 and 3, the resistive heating layer 42 is laminated on the outside of the electrical insulation layer 41. In particular, the resistive heating layer 42 forms a line on the electrical insulation layer 41. The resistive heating layer 42 is made of a material that is heat resistant and conductive. When a current flows through the resistive heating layer 42, the resistive heating layer 42 generates Joule heat according to the electrical resistance. Examples of materials that constitute the resistive heating layer 42 include metallic materials such as silver, platinum, and SUS, and non-metallic materials such as silicon carbide. The resistive heating layer 42 may be laminated using a deposition process or a printing process.

The resistive heating layer 42a arranged in the heat generating region 44 is configured to have a higher electrical resistance than the resistive heating layer 42b arranged in the non-heat generating region 45. As an example, as shown in FIG. 2, the resistive heating layer 42a is configured to be thicker than the resistive heating layer 42b. The electrical resistance of the resistive heating layer 42a may be 10 times or more the electrical resistance of the resistive heating layer 42b. With this configuration, the heating section 40 generates strong heat in the heat generating region 44 and does not generate heat or generates very little heat in the non-heat generating region 45. The resistive heating layer 42a is an example of a heat generating section that generates heat. The resistive heating layer 42b and the electrical contacts 43 are an example of a conductive section that conducts power to the heat generating section.

As shown in FIG. 2, the electrical contact 43 is laminated on the electrical insulation layer 41 and connected to the lower end of the resistive heating layer 42. The electrical contact 43 is connected to a conductor from the power supply unit 111, and electrically connects the power supply unit 111 and the resistive heating layer 42. The electrical contact 43 and the conductor may be connected by soldering. The electrical contact 43 is made of a material having electrical conductivity. An example of a material that constitutes the electrical contact 43 is a metallic material such as tin or nickel. The electrical contact 43 may be laminated using a deposition process or a printing process.

2, most of the resistive heating layer 42a, the resistive heating layer 42b, and the electrical contacts 43 are laminated on the electrical insulation layer 41. This configuration makes it possible to prevent a short circuit through the inner parts of the heating section 40 (e.g., the housing section 50 or the adhesive layer 60).

On the other hand, as shown in Figures 2 and 3, the end of the resistive heating layer 42a protrudes from the electrical insulation layer 41 and is laminated on the outer surface of the first adhesive layer 61. With this configuration, the two resistive heating layers 42 arranged on a pair of side walls 54a are electrically connected via the first adhesive layer 61 to form one conductive path. Therefore, by connecting a conductor to each of the two electrical contacts 43 connected to the two resistive heating layers 42 arranged on a pair of side walls 54a, it is possible to pass a current supplied from the power supply unit 111 through the two resistive heating layers 42 to generate heat in each of them.

Above, an example of the configuration of the heating system 30 according to this embodiment has been described. Next, the configuration of the adhesive layer 60, which is characteristic of the heating system 30 according to this embodiment, will be described in more detail.

The heat conductivity of the first adhesive layer 61 is preferably higher than that of the second adhesive layer 62. In other words, the heat conductivity of the second adhesive layer 62 is preferably lower than that of the first adhesive layer 61. With this configuration, it is possible to prevent the heat generated in the heat generating region 44 of the heating unit 40 from diffusing to the non-heat generating region 45. As a result, it is possible to prevent the solder in the electrical contact 43 from melting and the conductor from falling off. In addition, since unintended heat transfer downward of the storage unit 50 is reduced, it is possible to achieve an expected temperature distribution in the storage unit 50 and reduce energy loss. In this way, with this configuration, it is possible to reduce unnecessary heat transfer through the adhesive layer 60 and improve the quality of the user experience.

Here, considering that the first adhesive layer 61 is laminated so as to cover the entire outer periphery of the storage section 50, it is desirable that the thermal conductivity of the first adhesive layer 61 is at least higher than the thermal conductivity of the storage section 50. With this configuration, the heat generated in the heat generating area 44 of the heating section 40 on the side wall 54a can be diffused via the first adhesive layer 61 around the entire periphery of the storage section 50, including the side walls 54b and 54c. As a result, it becomes possible to efficiently heat the stick-shaped substrate 150 contained in the storage section 50.

On the other hand, it is desirable that the thermal conductivity of the second adhesive layer 62 is at least lower than the thermal conductivity of the housing portion 50. With this configuration, it is possible to reduce heat transfer to the electrical contact 43 via the housing portion 50.

There are various possible configurations for achieving the above-mentioned relationship in heat conductivity between the first adhesive layer 61 and the second adhesive layer 62.

As an example, the second adhesive layer 62 may be configured to be thinner than the first adhesive layer 61. For example, the first adhesive layer 61 may be laminated multiple times, and the second adhesive layer 62 may be laminated once. With such a configuration, it is possible to achieve strong adhesion between the side wall 54a and the electrical insulation layer 41, and the above-mentioned relationship in heat conductivity between the first adhesive layer 61 and the second adhesive layer 62.

The detailed configuration of the adhesive layer 60 has been described above. The effects of the above-described configuration will now be described.

It was difficult to laminate the electrical insulation layer 41 directly onto the housing portion 50 due to the characteristics of the materials of the electrical insulation layer 41 and the housing portion 50.

In this embodiment, the electrical insulation layer 41 and the housing portion 50 are bonded together by an adhesive layer 60. This configuration makes it possible to avoid the manufacturing difficulties described above.

Even if it were possible to laminate the electrical insulation layer 41 directly onto the housing portion 50, there would be a risk that the electrical insulation layer 41 would peel off due to the effects of thermal expansion. This is because the dimensional change caused by thermal expansion in the housing portion 50 is significantly greater than the dimensional change caused by thermal expansion in the electrical insulation layer 41. The reasons for this difference include the fact that the thermal expansion coefficient of the housing portion 50, which is made of SUS or the like, is greater than the thermal expansion coefficient of the electrical insulation layer 41, which is made of glass or the like, and that the housing portion 50 is configured to be thicker than the electrical insulation layer 41.

In this regard, in this embodiment, an adhesive layer 60 is provided between the storage section 50 and the electrical insulation layer 41. The adhesive layer 60 is thinner than the storage section 50, and is configured to be, for example, approximately the same thickness as the electrical insulation layer 41, so that the dimensional change caused by thermal expansion is smaller than that of the storage section 50. Therefore, the adhesive layer 60 can alleviate the load on the electrical insulation layer 41 caused by the large difference in dimensional change caused by thermal expansion between the storage section 50 and the electrical insulation layer 41. As a result, it is possible to prevent peeling of the electrical insulation layer 41 caused by the effects of thermal expansion.

The thermal expansion coefficient of the SUS that can be used to form the housing portion 50 may be approximately 16.2×10 ⁻⁶ [/°C]. The thermal expansion coefficient of the silver that can be used to form the adhesive layer 60 may be approximately 19.7×10 ⁻⁶ [/°C]. The thermal expansion coefficient of the glass that can be used to form the electrical insulation layer 41 may be approximately 9.0×10 ⁻⁶ [/°C].

As described above, according to this embodiment, it is possible to improve the manufacturing quality of the suction device 100 and further prevent malfunctions during use. As a result, it is possible to improve the quality of the user experience when using the suction device 100.

<3. Supplementary Information>
Although the preferred embodiment of the present disclosure has been described in detail above with reference to the accompanying drawings, the present disclosure is not limited to such examples. It is clear that a person having ordinary knowledge in the technical field to which the present disclosure belongs can conceive of various modified or amended examples within the scope of the technical ideas described in the claims, and it is understood that these also naturally belong to the technical scope of the present disclosure.

(First Modification)
Various configurations for realizing the above-mentioned magnitude relationship of the thermal conductivity between the first adhesive layer 61 and the second adhesive layer 62 are conceivable other than the configurations described in the above embodiment.

As an example, the first adhesive layer 61 may be configured uniformly, and the second adhesive layer 62 may be configured sparsely. Such an example configuration will be described with reference to Figs. 7 and 8. Figs. 7 and 8 are diagrams showing another example configuration of the adhesive layer 60. As shown in Fig. 7, the second adhesive layer 62 may be configured in a mesh shape. Alternatively, as shown in Fig. 8, the second adhesive layer 62 may be configured in a dot shape.

With these configurations, a portion of the sidewall 54a in the non-heat generating region 45 can be exposed while the other portion is covered by the second adhesive layer 62. As a result, the sidewall 54a and the electrical insulation layer 41 can be bonded together by the second adhesive layer 62 that covers a portion of the sidewall 54a. In other words, with this configuration, it is possible to achieve the above-mentioned magnitude relationship in heat transfer between the first adhesive layer 61 and the second adhesive layer 62 while ensuring a certain degree of adhesion between the sidewall 54a and the electrical insulation layer 41.

Furthermore, with this configuration, the exposed portion of the side wall 54a in the non-heat generating region 45 is secured as room for the second adhesive layer 62 to expand laterally (i.e., in a direction parallel to the side surface of the storage section 50). As a result, it is possible to further prevent peeling of the electrical insulation layer 41 due to thermal expansion of the adhesive layer 60.

Of course, the second adhesive layer 62 may be configured in any shape as long as it exposes a portion of the sidewall 54a in the non-heating region 45 while covering the other portion. As one example, the second adhesive layer 62 may be configured in a diagonal line pattern. As another example, if the second adhesive layer 62 is configured in a dot pattern, the dot shape may be any shape, such as a circle, an ellipse, or a rectangle.

Here, a desirable configuration of the second adhesive layer 62 when the second adhesive layer 62 is laminated with a portion of the side wall 54a in the non-heat generating region 45 exposed will be described with reference to FIG. 9. FIG. 9 is a diagram showing another example of the configuration of the adhesive layer 60. As shown in FIG. 9, it is desirable that the edge 62e of the second adhesive layer 62 is configured to be tapered. With this configuration, the step between the portion where the second adhesive layer 62 is laminated and the side wall 54a can be gently filled by the tapered edge 62e, thereby preventing the electrical insulation layer 41 from lifting in the portion where the side wall 54a is exposed. As a result, it is possible to prevent peeling of the electrical insulation layer 41.

It is preferable that the configuration shown in FIG. 9 is also used for the first adhesive layer 61. In particular, it is preferable that the portion of the edge of the first adhesive layer 61 that is covered by the electrical insulating layer 41 (for example, the boundary between the first adhesive layer 61 and the second adhesive layer 62) be configured in a tapered shape.

As another example, the first adhesive layer 61 and the second adhesive layer 62 may be made of different materials. In particular, the second adhesive layer 62 may be made of a material that has lower thermal conductivity than the first adhesive layer 61.

(Second Modification)
There are various other possible configurations for reducing unnecessary heat transfer through the adhesive layer 60 in addition to the configurations described above. Other configuration examples will be described with reference to FIG.

FIG. 10 is a diagram showing another example of the configuration of the adhesive layer 60. In FIG. 10, the adhesive layer 60 is shown laminated on the housing portion 50 shown in FIG. 4. However, for ease of explanation, the resistive heating layer 42, which will be laminated in a later process, is shown by a dashed line.

As shown in FIG. 10, the first adhesive layer 61 and the second adhesive layer 62 may be configured to be spaced apart. With this configuration, it is possible to reduce unnecessary heat transfer from the heat generating region 44 to the non-heat generating region 45.

As shown in FIG. 10, the first portion 62a of the second adhesive layer 62 on which the resistive heating layer 42b is laminated and the second portion 62b on which the electrical contact 43 is laminated may be configured to be separated from each other. The first portion 62a of the second adhesive layer 62 is an example of a portion of the second adhesive layer 62 that corresponds to a part other than the electrical contact 43. The second portion 62b of the second adhesive layer 62 is an example of a part of the second adhesive layer 62 that corresponds to the electrical contact 43. With this configuration, it is possible to reduce heat transfer to the electrical contact 43.

(Third Modification)
In the above embodiment, an example has been described in which the two heating units 40 are electrically connected to the first adhesive layer 61 and electricity is passed through the first adhesive layer 61, but the present disclosure is not limited to such an example. As shown in FIG. 11 , electricity may be passed through the heating unit 40 without passing through the first adhesive layer 61.

FIG. 11 is a diagram showing another example of the configuration of the heating system 30. The heating system 30 shown in FIG. 11 has the same configuration as the heating system 30 shown in FIG. 2, except for the configuration of the heating unit 40. As shown in FIG. 11, the entire resistive heating layer 42 is disposed on the electrical insulation layer 41. In addition, both ends of the resistive heating layer 42 (42a and 42b) are connected to two electrical contacts 43. Each of the two electrical contacts 43 is connected to a conductor from the power supply unit 111, and the power supply unit 111 and the resistive heating layer 42 are electrically connected. With this configuration, it is possible to pass electricity through the heating unit 40 without passing through the first adhesive layer 61.

(others)
The configuration examples described in the above embodiment or modified examples may be appropriately combined. As an example, the second adhesive layer 62 may be thinner than the first adhesive layer 61, configured in a mesh shape, and further configured to be separated from the first adhesive layer 61.

In the above, an example has been described in which the first adhesive layer 61 is disposed to cover the entire periphery of the side wall 54 of the storage section 50, but the present disclosure is not limited to such an example. For example, if electricity is applied to the heating section 40 without passing through the first adhesive layer 61, the first adhesive layer 61 may be disposed only on the side wall 54a.

The area in the non-heat generating region 45 where the electrical insulation layer 41 is laminated and the area where the second adhesive layer 62 is laminated may be the same or different. For example, the second adhesive layer 62 may be laminated in the storage section 50, protruding beyond the area where the electrical insulation layer 41 is laminated, such as protruding onto the side wall 54b.

Note that the following configurations also fall within the technical scope of the present disclosure.
(1)
A cylindrical body capable of accommodating a substrate containing an aerosol source;
An adhesive layer is disposed on the outer side of the side wall of the cylindrical body and adheres to the members disposed on both the inner and outer sides;
an electrical insulating layer disposed outside the adhesive layer and adhered to the side wall of the cylindrical body by the adhesive layer;
A heat generating portion disposed outside the insulating layer;
a conductive portion disposed outside the insulating layer and configured to conduct power to the heat generating portion;
Equipped with
a first adhesive layer corresponding to the position of the heat generating portion among the adhesive layers has a higher thermal conductivity than a second adhesive layer corresponding to the position of the conductive portion among the adhesive layers;
Suction device.
(2)
The first adhesive layer is uniformly configured;
The second adhesive layer is loosely configured.
The suction device described in (1) above.
(3)
The second adhesive layer is configured in a mesh shape.
The suction device described in (2) above.
(4)
The second adhesive layer is configured in a dot shape.
The suction device described in (2) above.
(5)
The second adhesive layer is configured to be thinner than the first adhesive layer.
The suction device according to any one of (1) to (4).
(6)
The first adhesive layer and the second adhesive layer are configured to be spaced apart from each other.
The suction device according to any one of (1) to (5).
(7)
One end of the conductive portion is connected to the heat generating portion, and the other end of the conductive portion is connected to a conductor that supplies power to the heat generating portion,
A portion of the second adhesive layer corresponding to a contact point between the conductive portion and the conductor wire and a portion of the second adhesive layer corresponding to other than the contact point of the conductive portion are configured to be separated from each other.
The suction device according to any one of (1) to (6).
(8)
The first adhesive layer and the second adhesive layer are made of the same material.
The suction device according to any one of (1) to (7).
(9)
The edge of the adhesive layer is configured to be tapered.
The suction device according to any one of (1) to (8).
(10)
The side wall of the cylindrical body includes a plurality of flat plates,
At least a portion of the adhesive layer, the insulating layer, the heat generating portion, and the conductive portion are disposed on the outer side of the flat plate.
The suction device according to any one of (1) to (9).
(11)
the first adhesive layer is disposed so as to cover an outer periphery of a side wall of the cylindrical body,
The thermal conductivity of the first adhesive layer is higher than the thermal conductivity of the cylindrical body.
The suction device according to any one of (1) to (10).
(12)
The thermal conductivity of the second adhesive layer is lower than the thermal conductivity of the cylindrical body.
The suction device according to any one of (1) to (11).

REFERENCE SIGNS LIST 100 Suction device 111 Power supply unit 112 Sensor unit 113 Notification unit 114 Memory unit 115 Communication unit 116 Control unit 150 Stick-shaped substrate 151 Substrate unit 152 Suction port unit 30 Heating system 40 Heating unit 41 Electrical insulation layer 42 Resistance heating layer 43 Electrical contact 44 Heat generating area 45 Non-heat generating area 50 Storage unit 52 Opening 54 Side wall 56 Bottom wall 60 Adhesive layer 61 First adhesive layer 62 Second adhesive layer 70 Heat insulating unit 80 Internal space

Claims (12)

A cylindrical body capable of accommodating a substrate containing an aerosol source;
An adhesive layer is disposed on the outer side of the side wall of the cylindrical body and adheres to the members disposed on both the inner and outer sides;
an electrical insulating layer disposed outside the adhesive layer and adhered to the side wall of the cylindrical body by the adhesive layer;
A heat generating portion disposed outside the insulating layer;
a conductive portion disposed outside the insulating layer and configured to conduct power to the heat generating portion;
Equipped with
a first adhesive layer corresponding to the position of the heat generating portion among the adhesive layers has a higher thermal conductivity than a second adhesive layer corresponding to the position of the conductive portion among the adhesive layers;
Suction device. The first adhesive layer is uniformly configured;
The second adhesive layer is loosely configured.
2. The suction device of claim 1. The second adhesive layer is configured in a mesh shape.
3. The suction device according to claim 2. The second adhesive layer is configured in a dot shape.
3. The suction device according to claim 2. The second adhesive layer is configured to be thinner than the first adhesive layer.
The suction device according to any one of claims 1 to 4. The first adhesive layer and the second adhesive layer are configured to be spaced apart from each other.
The suction device according to any one of claims 1 to 5. One end of the conductive portion is connected to the heat generating portion, and the other end of the conductive portion is connected to a conductor that supplies power to the heat generating portion,
A portion of the second adhesive layer corresponding to a contact point between the conductive portion and the conductor wire and a portion of the second adhesive layer corresponding to other than the contact point of the conductive portion are configured to be separated from each other.
A suction device according to any one of claims 1 to 6. The first adhesive layer and the second adhesive layer are made of the same material.
A suction device according to any one of claims 1 to 7. The edge of the adhesive layer is configured to be tapered.
A suction device according to any one of claims 1 to 8. The side wall of the cylindrical body includes a plurality of flat plates,
At least a portion of the adhesive layer, the insulating layer, the heat generating portion, and the conductive portion are disposed on the outer side of the flat plate.
A suction device according to any one of claims 1 to 9. the first adhesive layer is disposed so as to cover an outer periphery of a side wall of the cylindrical body,
The thermal conductivity of the first adhesive layer is higher than the thermal conductivity of the cylindrical body.
A suction device according to any one of claims 1 to 10. The thermal conductivity of the second adhesive layer is lower than the thermal conductivity of the cylindrical body.
A suction device according to any one of claims 1 to 11.

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