WO2024255518A1 - 气溶胶产生装置及其微波加热组件 - Google Patents

气溶胶产生装置及其微波加热组件 Download PDF

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Publication number
WO2024255518A1
WO2024255518A1 PCT/CN2024/093503 CN2024093503W WO2024255518A1 WO 2024255518 A1 WO2024255518 A1 WO 2024255518A1 CN 2024093503 W CN2024093503 W CN 2024093503W WO 2024255518 A1 WO2024255518 A1 WO 2024255518A1
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WO
WIPO (PCT)
Prior art keywords
receiving
cavity
seat
sealing
microwave heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2024/093503
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English (en)
French (fr)
Inventor
邓洋
杜靖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Smoore Technology Ltd
Smoore International Holdings Ltd
Original Assignee
Shenzhen Smoore Technology Ltd
Smoore International Holdings Ltd
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Publication date
Application filed by Shenzhen Smoore Technology Ltd, Smoore International Holdings Ltd filed Critical Shenzhen Smoore Technology Ltd
Priority to KR1020267001209A priority Critical patent/KR20260029487A/ko
Publication of WO2024255518A1 publication Critical patent/WO2024255518A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/05—Devices without heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/72—Radiators or antennas

Definitions

  • the invention relates to the technical field of aerosol generation, and in particular to an aerosol generating device and a microwave heating component thereof.
  • a special heating device is used to heat the processed aerosol-generating product to a certain temperature, releasing the aerosol for the user to inhale.
  • the temperature is lower, the harmful substances released are less, and it has the advantages of restoring taste and satisfaction, making it more and more popular among consumers.
  • the outer wall of the cavity of the aerosol generating device in the related art is often at a lower temperature.
  • the aerosol encounters the outer conductor unit with a lower temperature, it is easy to form condensation.
  • the condensation flows downward into the core position of the cavity, causing pollution and affecting the normal operation of the device.
  • the technical problem to be solved by the present invention is to provide an improved aerosol generating device and a microwave heating component thereof.
  • a microwave heating assembly for heating an aerosol generating product comprising:
  • an outer conductor unit including a closed end, an open end opposite to the closed end, and a cavity formed between the closed end and the open end;
  • an inner conductor unit which is disposed in the cavity and comprises a radiating structure and an inner conductor body;
  • a receiving seat connected to the open end and comprising a receiving cavity for receiving the aerosol generating product, wherein the receiving cavity is located in the cavity;
  • a sealing seat which is cylindrical, is disposed between the inner conductor body and the receiving seat, and includes a sealing side wall, wherein the sealing side wall is configured to reduce the generation of condensate during heating;
  • the radiation structure passes through the sealing seat and the receiving seat and extends into the receiving cavity, and the sealing seat and the receiving seat are respectively interference-fitted with the radiation structure.
  • the sealing seat is fixed to the inner conductor body.
  • the sealing side wall abuts against the outer conductor unit.
  • the receiving seat is at least partially located in the sealing seat and is movable relative to the sealing seat.
  • the receiving seat includes a receiving end wall and a receiving side wall surrounding the periphery of the receiving end wall, the receiving end wall is provided with a through hole for the radiation structure to pass therethrough, and the through hole penetrates along the axial direction of the outer conductor unit.
  • the receiving seat further includes a protrusion, which is disposed on the receiving end wall and extends along the periphery of the through hole toward the open end.
  • the microwave heating assembly further comprises a sealing member, wherein the sealing member is disposed on the receiving end wall and covers the through hole, and a through hole is disposed on the sealing member; when the radiation structure passes through the through hole, the sealing member and the radiation structure are interference fit.
  • the inner conductor unit further includes a conductor post, which includes a fixed end and a free end opposite to each other, wherein the fixed end is fixed to the outer conductor unit and is in ohmic contact with the outer conductor unit.
  • the inner conductor unit further includes a conductor disk, the conductor disk is connected to the free end, and an outer diameter of the conductor disk is larger than an outer diameter of the conductor column and smaller than an inner diameter of the outer conductor unit.
  • the present invention also constructs an aerosol generating device, including a microwave generating unit and the above-mentioned microwave heating component, wherein the microwave heating component also includes a microwave feeding unit connected to the outer conductor unit, the microwave feeding unit is connected to the microwave generating unit, and feeds the microwave generated by the microwave generating unit into the cavity.
  • the microwave heating component also includes a microwave feeding unit connected to the outer conductor unit, the microwave feeding unit is connected to the microwave generating unit, and feeds the microwave generated by the microwave generating unit into the cavity.
  • the microwave heating assembly of the present invention comprises a receiving seat and a sealing seat, the sealing seat and the receiving seat are respectively interference fit with the radiation structure to form a double sealing structure, which can effectively reduce the generation of condensate and prevent the generated condensate from entering the cavity, reduce the formation of condensate and cavity contamination, and improve the reliability of cavity use.
  • FIG1 is a schematic structural diagram of an embodiment of a microwave heating assembly of the present invention.
  • FIG2 is a cross-sectional view of an embodiment of a microwave heating assembly of the present invention.
  • FIG3 is an exploded view of an embodiment of a microwave heating assembly of the present invention.
  • FIG4 is a cross-sectional view of an embodiment of a receiving seat of the present invention.
  • FIG5 is a cross-sectional view of another embodiment of the receiving seat of the present invention.
  • FIG. 6 is a cross-sectional view of an embodiment of a sealing seat of the present invention.
  • the terms such as “installed”, “connected”, “connected”, “fixed”, “set” and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements.
  • installed can be a fixed connection, a detachable connection, or an integral one
  • it can be a mechanical connection or an electrical connection
  • it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements.
  • an element When an element is referred to as being “on” or “under” another element, the element can be “directly” or “indirectly” located on the other element, or there may be one or more intermediate elements.
  • FIG. 1 and FIG. 2 show an aerosol generating device according to some embodiments of the present invention.
  • the aerosol generating device can utilize microwaves to heat an aerosol-generating article 20 to generate aerosol by atomization for inhalation by a user.
  • the aerosol generating device includes a microwave heating component 10 and a microwave generating unit (not shown), a control component (not shown) and a power supply component (not shown).
  • the power supply component is used to provide electrical energy to the microwave heating component 10, the microwave generating unit and the control component.
  • the control component is used to control the operation of the microwave heating component 10 and the microwave generating unit.
  • the microwave generating unit can generate microwave signals and feed microwaves into the microwave heating component 10 by connecting to the microwave heating component 10.
  • the microwave heating component 10 uses microwaves to heat the aerosol generating product 20.
  • the microwave heating component 10 may be substantially cylindrical.
  • the microwave heating component 10 is not limited to a cylindrical shape, and may also be in other shapes such as a square column, an elliptical column, etc.
  • the microwave heating assembly 10 includes an outer conductor unit 1, an inner conductor unit 2, a microwave feeding unit 3, a receiving seat 4 and a sealing seat 5.
  • the outer conductor unit 1 can be cylindrical, having a closed end 11 and an open end 12 opposite to the closed end 11, and can define a semi-enclosed cavity 13.
  • a receiving cavity 40 for receiving the aerosol generating product 20 is formed in the cavity 13.
  • the inner conductor unit 2 mainly plays a role in microwave conduction.
  • the inner conductor unit 2 is arranged in the cavity 13 of the outer conductor unit 1, and can have good ohmic contact with the outer conductor unit 1, and is used to couple the energy introduced by the microwave feeding unit 3 into the cavity 13.
  • the outer conductor unit 1 can be made of metal material or other high conductivity materials, and is used to confine microwave energy in the cavity 13.
  • the shape of the outer conductor unit 1 includes but is not limited to a cylinder and a cuboid, and the size of the outer shell can be adjusted according to the size of the aerosol generating article 20.
  • the outer conductor unit 1 may include a conductor side wall 14 and a conductor end wall 15.
  • the conductor side wall 14 may be cylindrical, and the top of the conductor side wall 14 is open to form the open end 12 of the outer conductor unit 1.
  • the bottom of the conductor side wall 14 is also open to form the conductor end wall 15 which is integrally sealed to the bottom of the conductor side wall 14 to form the closed end 11 of the outer conductor unit 1.
  • a feeding hole 141 is formed on the conductor side wall 14, and the feeding hole 141 is formed along a direction perpendicular to the central axis of the conductor side wall 14 and straightly penetrates the conductor side wall 14, so as to allow the microwave feeding unit 3 to be inserted into the cavity 13.
  • the feeding hole 141 can also be formed on the conductor end wall 15, and the microwave feeding unit 3 is inserted into the cavity 13 from the bottom of the microwave heating assembly 10.
  • the microwave feeding unit 3 is detachably mounted on the outer conductor unit 1, and is used to feed the microwaves generated by the microwave generating unit into the cavity 13, thereby forming a microwave field in the cavity 13 that can act on the aerosol generating product 20.
  • the microwave field can act on the aerosol generating product 20 to achieve microwave heating thereof.
  • One end of the microwave feeding unit 3 is inserted into the cavity 13 from the feeding hole 141 of the outer conductor unit 1, and is in ohmic contact with the inner conductor unit 2.
  • one side of the microwave feeding unit 3 is connected to the microwave generating device and connected through a coaxial connector or a microstrip line, and the other side extends into the cavity 13 and forms an ohmic contact with the cavity 13.
  • the microwave feeding unit 3 is made of metal material, preferably, it can be made of metal aluminum or copper. Furthermore, its outer surface can be coated with silver or gold.
  • the microwave feeding unit 3 in some embodiments includes an inner conductor 31, an outer conductor 32, and a dielectric layer 33 between the inner conductor 31 and the outer conductor 32.
  • the outer conductor 32 may be cylindrical, and both ends of the outer conductor 32 are open. During assembly, the outer circumferential side surface of the outer conductor 32 is in ohmic contact with the inner wall surface of the feeding hole 141 .
  • the inner conductor 31 is a straight needle-shaped structure, one end of the inner conductor 31 is a connection end, located inside the outer conductor 32, and used to connect to the microwave generating unit and receive microwaves, and the other end of the inner conductor 31 is a feeding end 311, located outside the outer conductor 32, which can be inserted into the cavity 13 during assembly and form a good ohmic contact with the inner conductor unit 2.
  • the feeding end 311 of the inner conductor 31 is not limited to the ohmic contact with the inner conductor unit 2, and it can also directly form an ohmic contact with the outer conductor unit 1.
  • the shape of the inner conductor 31 is not limited to a straight line, and the inner conductor 31 may also be L-shaped (not shown).
  • the inner conductor 31 may include a first section perpendicular to the central axis of the cavity 13 and a second section parallel to the central axis of the cavity 13. The first section is partially located in the outer conductor 32 and is integrally connected to one end of the second section. The other end of the second section is arranged outside the outer conductor 32 and is in direct ohmic contact with the conductor end wall 15 of the outer conductor unit 1.
  • the inner conductor unit 2 includes a radiation structure 21 and an inner conductor body 22.
  • the radiation structure 21 passes through the sealing seat 5 and the receiving seat 4 in sequence and extends into the receiving cavity 40.
  • the sealing seat 5 and the receiving seat 4 are respectively interference fit with the radiation structure 21 to achieve a double sealing structure.
  • the inner conductor unit 2 is connected to the closed end 11 of the outer conductor unit 1 and is in ohmic contact with the conductor end wall 15 to form a short-circuit end of the microwave heating component 10.
  • the radiation structure 21 is located in the cavity 13 but is not in direct contact with the outer conductor unit 1 to form an open-circuit end of the microwave heating component 10.
  • the inner conductor body 22 includes a conductor post 221, which is disposed in the cavity 13, and the outer diameter of the conductor post 221 is smaller than the inner diameter of the outer conductor unit 1.
  • the conductor post 221 includes a fixed end 2211 and a free end opposite to each other, and the fixed end 2211 is fixed to the outer conductor unit 1 and is in ohmic contact with the conductor end wall 15 of the outer conductor unit 1. It is understandable that in other embodiments, the fixed end 2211 can be integrally connected with the conductor end wall 15 of the outer conductor unit 1.
  • the conductor column 221 mainly plays a role in microwave conduction. In some embodiments, it can be cylindrical. It is understandable that the conductor column 221 is not limited to a cylindrical shape, but can also be a polygon or other shapes.
  • the end of the conductor column 221 away from the open end 12 of the outer conductor unit 1 is a fixed end 2211, which can be fixedly connected to the conductor end wall 15 of the outer conductor unit 1; the end close to the open end 12 is a free end, extending toward the open end 12 of the outer conductor unit 1.
  • the inner conductor body 22 also includes a conductor disk 222, which is used to adjust the feeding frequency (step impedance).
  • the conductor disk 222 is used for microwave conduction, and can also increase its own inductance and capacitance, and reduce the resonant frequency, thereby facilitating a further reduction in the size of the cavity 13.
  • the conductor disk 222 can be in the shape of a disk, which can be coaxially connected to the free end of the conductor column 221.
  • the outer diameter of the conductor disk 222 is greater than the outer diameter of the conductor column 221, and the outer diameter of the conductor disk 222 is smaller than the diameter of the cavity 13.
  • the radial distance from the conductor disk 222 to the inner wall surface of the cavity 13 is much smaller than the radial distance from the conductor column 221 to the inner wall surface of the cavity 13.
  • the radiating structure 21 may be combined with a free end of the conductor post 221.
  • the radiating structure 21 includes at least one probe, which may be longitudinally shaped and extend along an axis parallel to the conductor post 221. In some embodiments, the probe may be embedded in the conductor post 221.
  • the receiving seat 4 can be roughly in the shape of a hollow cylinder, and a receiving cavity 40 can be formed in the receiving seat 4, and the receiving cavity 40 is in the main area where the microwave field is formed.
  • the receiving seat 4 can also protect the cavity 13 and the inner conductor unit 2 from being contaminated by fog or as little as possible.
  • the receiving seat 4 includes a fixing portion 41 and a receiving portion 42 .
  • the fixing portion 41 of the receiving seat 4 can be fixedly or detachably installed at the opening end 12 of the outer conductor unit 1 .
  • the receiving portion 42 includes a receiving end wall 421 and a cylindrical receiving side wall 422 arranged around the periphery of the receiving end wall 421, wherein the outer diameter of the receiving side wall 422 is smaller than the inner diameter of the conductor side wall 14 of the outer conductor unit 1.
  • a receiving cavity 40 is formed between the receiving end wall 421 and the receiving side wall 422, in which the aerosol generating product 20 can be received.
  • the receiving end wall 421 is provided with a through hole 4211 through which the radiation structure 21 can pass, and the through hole 4211 penetrates along the axial direction of the outer conductor unit 1.
  • the radiation structure 21 extends into the receiving cavity 40 through the through hole 4211. When the aerosol generating product 20 is placed in the receiving cavity 40, the radiation structure 21 can extend into the aerosol generating product located in the receiving cavity 40 through the through hole 4211 to heat the aerosol generating product.
  • the receiving seat 4 further includes a plurality of longitudinal positioning ribs 44; these positioning ribs 44 are evenly spaced and arranged on the inner circumference of the receiving side wall 422. Each positioning rib 44 extends in a direction parallel to the axis of the receiving cavity 40. In one aspect, these positioning ribs 44 can be used to clamp the aerosol generating product 20 inserted into the receiving cavity 40, and in another aspect, a longitudinally extending first air inlet channel is formed between each two adjacent positioning ribs 44 to facilitate the ambient air to be sucked into the bottom of the aerosol generating product 20, and then enter the aerosol generating product 20 to take away the aerosol generated by microwave heating.
  • the receiving seat 4 further includes a plurality of longitudinal supporting ribs 45; these supporting ribs 45 are evenly spaced and radially distributed on the receiving end wall 421. It can be understood that the supporting ribs 45 are used to support the aerosol generating product 20 on one hand, and form a plurality of radial second air inlet channels on the other hand. These second air inlet channels are respectively connected with these first air inlet channels to facilitate the ambient air to be sucked into the bottom of the aerosol generating product 20, and then enter the aerosol generating product 20 to take away the aerosol generated by microwave heating.
  • the receiving seat 4 further includes a protrusion 43, which is disposed on the receiving end wall 421 and extends upward along the periphery of the through hole 4211 toward the open end 12, so as to facilitate the radiation structure 21 to pass through the through hole 4211 and prevent the residual liquid at the bottom of the receiving seat 4 from flowing out of the through hole 4211.
  • the microwave heating assembly 10 further includes a sealing member 6, which is disposed on the receiving end wall 421 and covers the through hole 4211, and a perforation 61 is disposed on the sealing member 6; when the radiation structure 21 passes through the perforation 61, the sealing member 6 and the radiation structure 21 are interference-fitted, which can prevent the formed condensate from flowing to the core position of the cavity 13.
  • the sealing member 6 can be a sealing ring, and the material of the sealing member 6 can include plastic, silicone, etc. Understandably, the thickness of the receiving end wall 421 can be increased so that the condensate is not easy to flow into the cavity 13, and the sealing effect is better.
  • the material of the receiving seat 4 may include polymer materials, ceramic materials, metal materials or glass materials.
  • polymer materials may include polytetrafluoroethylene (PTFE), polyetheretherketone (PEEK), ppsu, pc, ABS, pp, etc.
  • ceramic materials may include aluminum oxide, zirconium oxide, etc. In practical applications, polymer materials are preferred, which have the advantages of low cost and low thermal conductivity.
  • the sealing seat 5 can be cylindrical and located in the cavity 13.
  • the sealing seat 5 is arranged between the inner conductor body 22 and the receiving seat 4, and forms a receiving cavity.
  • the sealing seat 5 includes a sealing side wall 51 and a sealing end wall 52, and the sealing side wall 51 is configured to reduce the generation of condensate during the heating process.
  • the sealing side wall 51 can abut against the conductor side wall 14 of the outer conductor unit 1, which can effectively prevent the formation of condensate on the outer conductor unit 1.
  • the sealing seat 5 can be fixed on the inner conductor unit 2.
  • the outer diameter of the sealing seat 5 is less than or equal to the inner diameter of the outer conductor unit 1, and the inner diameter of the sealing seat 5 is greater than the outer diameter of the receiving side wall 422.
  • the depth of the sealing seat 5 can be equivalent to the depth of the receiving portion 42.
  • the bottom of the sealing seat 5 may be provided with a boss 53, which is arranged on an end surface of the sealing end wall 52 of the sealing seat 5 opposite to the receiving seat 4 and extends along the open end 12. It can be understood that the bottom of the sealing seat 5 is provided with an opening 54 corresponding to the through hole 4211 of the receiving seat 4. Specifically, the opening 54 can be arranged at the center of the boss 53.
  • the boss 53 can relatively increase the height of the bottom center of the sealing seat 5, increase the sealing area between it and the radiation structure 21, and prevent the residual liquid at the bottom of the sealing seat 5 from flowing out of the opening 54.
  • the boss 53 is not a necessary component in the present invention, and is applied in the present invention as a preferred solution. As long as the thickness of the sealing end wall 52 of the sealing seat 5 is relatively thick, the boss 53 may not be provided. Therefore, in some embodiments, the sealing area between the sealing seat 5 and the radiation structure 21 may be increased by increasing the thickness of the sealing end wall 52.
  • the sealing end wall 52 of the sealing seat 5 can abut against the receiving end wall 421 of the receiving seat 4.
  • the thickness of the sealing end wall 52 can be adjusted according to actual conditions, and the sealing end wall 52 of the sealing seat 5 does not necessarily have to abut against the receiving seat 4, which is not specifically limited here.
  • a sealing seat 5 is added between the inner conductor body 22 and the receiving seat 4.
  • the interference fit between the sealing seat 5 and the radiation structure 21 is a static seal (relative to the receiving seat 4), which can prevent the formed condensate from flowing to the core position of the cavity 13.
  • the thermal conductivity of the sealing seat 5 is much lower than that of the outer conductor unit 1, which can reduce the heat conduction of the atomized medium to the outside and indirectly improve the energy utilization rate. Therefore, the temperature of the sealing seat 5 is higher than that of the outer conductor unit 1, and it is not easy for the mist to form condensate on it.
  • the present invention has a double sealing structure, wherein the double sealing structure includes a first layer of sealing formed between the receiving seat 4 and the radiation structure 21 and a second layer of sealing formed between the sealing seat 5 and the radiation structure 21 .
  • the receiving seat 4 is at least partially located in the accommodating cavity of the sealing seat 5, and the receiving seat 4 can move up and down axially relative to the sealing seat 5, so that the receiving seat 4 has the function of lifting the aerosol generating product 20.
  • the receiving seat 4 and the sealing seat 5 can be relatively fixed. Regardless of whether the receiving seat 4 has the function of lifting the aerosol generating product 20, that is, regardless of whether the receiving seat 4 can move, the sealing seat 5 always remains stationary, and the aerosol and condensate need to first break through the seal between the receiving seat 4 and the radiation structure 21 and the seal between the sealing seat 5 and the radiation structure 21 before they can flow into the core position of the cavity 13, so the double sealing structure has a better sealing effect.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Abstract

本发明涉及一种气溶胶产生装置及其微波加热组件，微波加热组件包括外导体单元，其包括封闭端、开口端以及腔体；内导体单元，其设置在腔体中，并包括辐射结构和内导体主体；收容座，其连接于开口端上，并包括收容腔，收容腔位于腔体中；以及密封座，呈筒状，其设置于内导体主体与收容座之间，并包括密封侧壁，密封侧壁被配置为减少加热过程中冷凝液的产生；辐射结构穿过密封座和收容座并伸入至收容腔中。气溶胶产生装置包括微波发生单元和微波加热组件。本发明的密封座和收容座分别与辐射结构过盈配合，形成双重密封结构，可有效减少冷凝液的产生，并防止已产生的冷凝液进入腔体，减少冷凝液的形成和腔体污染，提升腔体使用的可靠性。

Description

气溶胶产生装置及其微波加热组件 技术领域
本发明涉及气溶胶生成技术领域，尤其涉及一种气溶胶产生装置及其微波加热组件。
 背景技术
相关技术中，利用特制的加热装置将经过处理的气溶胶生成制品加热到一定的温度，释放出气溶胶，供用户抽吸，由于相比传统的直接燃烧加热方式温度更低，释放的有害物质更少，且具备还原口感和满足感等优点，使其越来越受消费者的青睐。
但相关技术中的气溶胶产生装置的腔体外壁往往温度较低，气溶胶遇到温度较低的外导体单元很容易形成冷凝液，冷凝液向下流进腔体核心位置，造成污染，且影响器具的正常工作。
 发明内容
本发明要解决的技术问题在于，提供一种改进的气溶胶产生装置及其微波加热组件。
本发明解决其技术问题所采用的技术方案是：构造一种微波加热组件，用于加热气溶胶生成制品，包括：
外导体单元，其包括一个封闭端、一个与所述封闭端相对的开口端以及一个形成于所述封闭端和所述开口端之间的腔体；
内导体单元，其设置在所述腔体中，并包括辐射结构和内导体主体；
收容座，其连接于所述开口端上，并包括用于收容气溶胶生成制品的收容腔，所述收容腔位于所述腔体中；以及
密封座，呈筒状，其设置于所述内导体主体与所述收容座之间，并包括密封侧壁，所述密封侧壁被配置为减少加热过程中冷凝液的产生；
所述辐射结构穿过所述密封座和所述收容座并伸入至所述收容腔中，且所述密封座和所述收容座分别与所述辐射结构过盈配合。
在一些实施例中，所述密封座固定于所述内导体主体上。
在一些实施例中，所述密封侧壁抵接于所述外导体单元。
在一些实施例中，所述收容座至少部分位于所述密封座内，并可相对所述密封座移动。
在一些实施例中，所述收容座包括收容端壁以及围设在所述收容端壁周缘的收容侧壁，所述收容端壁上设有可供所述辐射结构穿设其中的通孔，所述通孔沿所述外导体单元的轴向贯通。
在一些实施例中，所述收容座还包括凸部，所述凸部设置于所述收容端壁上，并沿所述通孔周缘向所述开口端延伸。
在一些实施例中，所述微波加热组件还包括密封件，所述密封件设置在所述收容端壁上且覆盖所述通孔，所述密封件上设置有穿孔；所述辐射结构穿过所述穿孔时，所述密封件与所述辐射结构过盈配合。
在一些实施例中，所述内导体单元还包括导体柱，其包括相对的固定端和自由端，所述固定端固定于所述外导体单元，并与所述外导体单元欧姆接触。
在一些实施例中，所述内导体单元还包括导体盘，所述导体盘连接于所述自由端，所述导体盘的外径大于所述导体柱的外径，且小于所述外导体单元的内径。
本发明还构造了一种气溶胶产生装置，包括微波发生单元以及上述的微波加热组件，所述微波加热组件还包括连接于所述外导体单元上的微波馈入单元，所述微波馈入单元与所述微波发生单元相连接，并将所述微波发生单元产生的微波馈入至所述腔体中。
实施本发明具有以下有益效果：本发明的微波加热组件包括收容座和密封座，密封座和收容座分别与辐射结构过盈配合，形成双重密封结构，可有效减少冷凝液的产生，并防止已产生的冷凝液进入腔体，减少冷凝液的形成和腔体污染，提升腔体使用的可靠性。
 附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明的微波加热组件一种实施例的结构示意图；
图2是本发明的微波加热组件一种实施例的剖视图；
图3是本发明的微波加热组件一种实施例的爆炸图；
图4是本发明的收容座一种实施例的剖视图；
图5是本发明的收容座另一种实施例的剖视图；
图6是本发明的密封座一种实施例的剖视图。
 具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。以下描述中，需要理解的是，“前”、“后”、“上”、“下”、“左”、“右”、“纵”、“横”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“头”、“尾”等指示的方位或位置关系为基于附图所示的方位或位置关系、以特定的方位构造和操作，仅是为了便于描述本技术方案，而不是指示所指的装置或元件必须具有特定的方位，因此不能理解为对本发明的限制。
还需要说明的是，除非另有明确的规定和限定，“安装”、“相连”、“连接”、“固定”、“设置”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。当一个元件被称为在另一元件“上”或“下”时，该元件能够“直接地”或“间接地”位于另一元件之上，或者也可能存在一个或更多个居间元件。术语“第一”、“第二”、“第三”等仅是为了便于描述本技术方案，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量，由此，限定有“第一”、“第二”、“第三”等的特征可以明示或者隐含地包括一个或者更多个该特征。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
以下描述中，为了说明而不是为了限定，提出了诸如特定系统结构、技术之类的具体细节，以便透彻理解本发明实施例。然而，本领域的技术人员应当清楚，在没有这些具体细节的其它实施例中也可以实现本发明。在其它情况中，省略对众所周知的系统、装置、电路以及方法的详细说明，以免不必要的细节妨碍本发明的描述。
图1和图2示出本发明的一些实施例的气溶胶产生装置，该气溶胶产生装置可利用微波加热气溶胶生成制品20，以雾化产生气溶胶，从而供使用者吸食。
如图1所示，在一些实施例中，气溶胶产生装置包括微波加热组件10和微波发生单元（未图示）、控制组件（未图示）和电源组件（未图示），电源组件用于为微波加热组件10、微波发生单元和控制组件提供电能，控制组件用于控制微波加热组件10、微波发生单元工作，微波发生单元可产生微波信号，并通过与微波加热组件10连接将微波馈入到微波加热组件10中，微波加热组件10利用微波对气溶胶生成制品20进行加热。
在一些实施例中，微波加热组件10可大致呈圆柱状，当然，微波加热组件10并不局限于圆柱状，其也可呈方柱、椭圆柱状等其他形状。
如图1和图2所示，微波加热组件10包括外导体单元1、内导体单元2、微波馈入单元3、收容座4和密封座5。该外导体单元1可以呈筒状，其具有一个封闭端11和与该封闭端11相对的开口端12，并可界定出一个半封闭式的腔体13。腔体13中形成有一个用于收容气溶胶生成制品20的收容腔40。内导体单元2主要起到微波传导作用。内导体单元2设置于外导体单元1的腔体13中，并可以与外导体单元1有良好的欧姆接触，用于将微波馈入单元3导入的能量耦合到腔体13内。
外导体单元1可以由金属材料或者其它高导电率材料制成，用于将微波能量束缚在腔体13内。外导体单元1的形状包括但不限于圆柱体、长方体，外壳的尺寸可根据气溶胶生成制品20的尺寸进行调整。
一并参阅图3，外导体单元1可包括导体侧壁14和导体端壁15，导体侧壁14可呈圆筒状，导体侧壁14的顶端为敞口设计，形成上述外导体单元1的开口端12，导体侧壁14的底端亦为敞口设计，导体端壁15一体地封堵于导体侧壁14的底端，形成上述外导体单元1的封闭端11。
导体侧壁14上形成有一馈入孔141，该馈入孔141沿垂直于导体侧壁14的中心轴的方向、笔直贯穿导体侧壁14成形，用于供微波馈入单元3插设至腔体13中。当然，馈入孔141还可以形成于导体端壁15上，微波馈入单元3从微波加热组件10的下方插入腔体13中。
微波馈入单元3可拆卸地安装于外导体单元1上，用于将微波发生单元产生的微波馈入至腔体13中，从而在腔体13中形成一个可作用于气溶胶生成制品20的微波场，该微波场可作用于气溶胶生成制品20，对其实现微波加热。
微波馈入单元3的一端从外导体单元1的馈入孔141插入至腔体13内，且与内导体单元2欧姆接触。在一些实施例中，微波馈入单元3一侧和微波发生装置相连接并通过同轴接头或者微带线连接，另一侧伸入至腔体13，并与腔体13形成欧姆接触。微波馈入单元3采用金属材料制成，优选地，其可以由金属铝或铜制成。进一步地，其外表面可以镀有银或金涂层。如图2所示，微波馈入单元3在一些实施例中包括内导体31、外导体32以及介于内导体31和外导体32之间的介质层33。
该外导体32可呈圆筒状，且外导体32的两端分别为敞口设计；在装配时，外导体32的外周侧面与馈入孔141的内壁面欧姆接触。
内导体31呈一字型的针状结构，内导体31的一端为连接端，位于外导体32内，用于与微波发生单元连接并接入微波，内导体31的另一端为馈入端311，位于外导体32外，在装配时可伸入腔体13中，并与内导体单元2形成良好的欧姆接触。当然，内导体31的馈入端311并非限定于与内导体单元2欧姆接触，其亦可以直接与外导体单元1形成欧姆接触。
可理解地，内导体31的形状亦不限定于一字型，内导体31也可呈L型（未图示），比如，内导体31可包括一个垂直于腔体13的中轴线的第一段和平行于腔体13的中轴线的第二段，第一段部分位于外导体32中，并与第二段的一端一体连接，第二段的另一端设置在外导体32外，并与外导体单元1的导体端壁15直接欧姆接触。
如图2和图3所示，内导体单元2包括辐射结构21和内导体主体22，辐射结构21依次穿过密封座5和收容座4并伸入至收容腔40中，且密封座5和收容座4分别与辐射结构21过盈配合，以实现双重密封结构。
内导体单元2与外导体单元1的封闭端11连接，并与导体端壁15欧姆接触，形成该微波加热组件10的短路端，辐射结构21位于腔体13中，但不与外导体单元1直接接触，形成该微波加热组件10的开路端。
内导体主体22包括导体柱221，导体柱221设置于腔体13内，且导体柱221的外径小于外导体单元1的内径。导体柱221包括相对的固定端2211和自由端，固定端2211固定于外导体单元1，并与外导体单元1的导体端壁15欧姆接触。可理解地，在另一些实施例中，固定端2211可以与外导体单元1的导体端壁15一体连接。
导体柱221主要起到微波传导作用，其在一些实施例中可呈圆柱状，可理解地，导体柱221并不仅限于圆柱状，还可以呈多边体状或者是其它形状。导体柱221远离外导体单元1的开口端12的一端为固定端2211，可固定连接在外导体单元1的导体端壁15上；其靠近开口端12的一端为自由端，向外导体单元1的开口端12延伸。
内导体主体22还包括导体盘222，用于调节馈入频率（阶跃阻抗）。导体盘222用于微波传导，还可以增加自身电感和电容，以及降低谐振频率，从而利于腔体13尺寸的进一步变小。该导体盘222可呈圆盘状，其可以共轴地连接于导体柱221的自由端，导体盘222的外径大于导体柱221的外径，并且导体盘222的外径小于腔体13的直径。导体盘222到达腔体13的内壁面的径向距离远小于导体柱221到达腔体13的内壁面的径向距离。
辐射结构21可结合于导体柱221的自由端。辐射结构21包括至少一个探针，该至少一个探针可以呈纵长型，并沿平行于导体柱221的轴线延伸设置。在一些实施例中，探针可嵌置于导体柱221。
如图3至图5所示，收容座4可大致呈中空圆柱状，收容腔40可形成于该收容座4内，该收容腔40处于微波场形成的主要区域。收容座4还可起到保护腔体13以及内导体单元2不被或者尽可能地不被雾气所污染的作用。
收容座4包括固定部41和收容部42，收容座4的固定部41可固定地或可拆卸地安装于外导体单元1的开口端12处。
如图4和图5所示，收容部42包括收容端壁421以及围设在收容端壁421周缘的筒状的收容侧壁422，收容侧壁422的外径小于外导体单元1的导体侧壁14的内径。收容端壁421与收容侧壁422之间形成收容腔40，可供气溶胶生成制品20收容于其中。收容端壁421上设有可供辐射结构21穿设其中的通孔4211，通孔4211沿外导体单元1的轴向贯通。辐射结构21通过通孔4211伸入至收容腔40内。当气溶胶生成制品20置于收容腔40中时，辐射结构21可通过通孔4211伸入至位于收容腔40的气溶胶生产制品中，以加热气溶胶生产制品。
收容座4在一些实施例中还包括若干个纵长的定位筋44；这些定位筋44间隔均匀地设置于收容侧壁422内侧周向上。每一定位筋44均沿着平行于收容腔40的轴线的方向延伸。该些定位筋44在一个方面可用于夹紧插入收容腔40中的气溶胶生成制品20，在另一个方面每相邻两定位筋44之间均形成一个纵向延伸的第一进气通道，以方便环境空气被吸入到气溶胶生成制品20的底部，再进入气溶胶生成制品20中带走被微波加热产生的气溶胶。
收容座4在一些实施例中还包括若干纵长的支撑筋45；这些支撑筋45均匀间隔地呈放射状分布于收容端壁421上。可以理解地，支撑筋45一个方面用于支撑气溶胶生成制品20，另一个方向形成若干放射状第二进气通道。这些第二进气通道分别与这些第一进气通道相连通，以方便环境空气被吸入到气溶胶生成制品20的底部，再进入气溶胶生成制品20中带走被微波加热产生的气溶胶。
如图4所示，收容座4还包括凸部43，凸部43设置于收容端壁421上，并沿通孔4211周缘朝向开口端12向上延伸。便于辐射结构21穿过通孔4211，且可防止收容座4底部残留液体由通孔4211流出。
一并结合图3和图4，由于介质被加热时，温度最高可达300℃以上，收容座4底部的通孔4211和辐射结构21虽是过盈配合密封，但在长时间高温工作下，密封性会逐渐变差。如果收容座4与辐射结构21是动密封配合的话，辐射结构21工作时间久后会附着污垢，也会导致密封变差。密封变差后，加热过程中所产生的雾气容易进入腔体13，遇到温度相对较低的外导体单元1的导体侧壁14后形成冷凝液，冷凝液向下流进腔体13核心位置，造成污染，且影响器具的正常工作。
如图5所示，为了改善密封效果，在一些实施例中，微波加热组件10还包括密封件6，密封件6设置在收容端壁421上且覆盖通孔4211，密封件6上设置有穿孔61；辐射结构21穿过穿孔61时，密封件6与辐射结构21过盈配合，可以阻止已形成的冷凝液流向腔体13核心位置。该密封件6可以为密封圈，密封件6的材料可以包括塑料、硅胶等。可理解地，还可以通过增加收容端壁421的厚度，使得冷凝液不容易流进腔体13中，密封效果更好。
收容座4的材料可以包括高分子材料、陶瓷材料、金属材料或玻璃材料。具体地，高分子材料可包括聚四氟乙烯（PTFE）、聚醚醚酮（PEEK）、ppsu、pc、ABS、pp等；陶瓷材料可以包括氧化铝、氧化锆等。在实际应用中，优选高分子材料，高分子材料具有成本低、导热系数低等优点。
一并参阅图2、图3和图6，密封座5可以呈筒状，并位于腔体13内。密封座5设置于内导体主体22与收容座4之间，并形成有容纳腔。密封座5包括密封侧壁51和密封端壁52，密封侧壁51被配置为可减少在加热过程中冷凝液的产生。密封侧壁51可抵接于外导体单元1的导体侧壁14，可有效防止在外导体单元1上形成冷凝液。密封座5可以固定于内导体单元2上。密封座5的外径小于或等于外导体单元1的内径，且密封座5的内径大于收容侧壁422的外径。密封座5的深度可与收容部42的深度相当。
如图3和图6所示，密封座5的底部可设有凸台53，凸台53设置于密封座5的密封端壁52与收容座4相对的一端面上，并沿所述开口端12延伸。可理解地，密封座5的底部设有与收容座4的通孔4211对应的开孔54。具体的，开孔54可设置在凸台53的中心位置上。该凸台53可以相对增加密封座5的底部中心的高度，增加其与辐射结构21之间的密封面积，可防止密封座5底部残留液体由开孔54流出。
当然，该凸台53在本发明中并不是必要的部件，其作为一个优选方案应用于本发明中。只要密封座5的密封端壁52的厚度较厚，也可以不用设置该凸台53。因此，在一些实施例中也可以通过增加密封端壁52的厚度以增大密封座5跟辐射结构21的密封面积。
如图2所示，在该实施例中，密封座5的密封端壁52可以抵接于收容座4的收容端壁421。当然，密封端壁52的厚度可根据实际情况调整，密封座5的密封端壁52也不一定要抵接于收容座4，此处不作具体限制。
在内导体主体22和收容座4之间增加密封座5，密封座5和辐射结构21的过盈配合属于静态密封（相对于收容座4），可以阻止已形成的冷凝液流向腔体13核心位置。密封座5的导热系数远低于外导体单元1的导热系数，可减少雾化介质往外的导热，间接提高能量利用率。因此密封座5的温度相对于外导体单元1较高，雾气不易在其上形成冷凝液。
综上，本发明具有双重密封结构，其中该双重密封结构包括收容座4与辐射结构21之间形成的第一层密封以及密封座5与辐射结构21之间形成的第二层密封。
如图2所示，收容座4至少部分位于密封座5的容纳腔内，收容座4可相对密封座5沿轴向上下移动，使得收容座4具有提升气溶胶生成制品20功能。当然，收容座4与密封座5之间可以是相对固定的。无论收容座4是否具有提升气溶胶生成制品20功能，即无论收容座4是否能够移动，密封座5始终保持不动，气溶胶和冷凝液需要先突破收容座4与辐射结构21之间的密封和密封座5与辐射结构21之间的密封才能流进腔体13核心位置，因此该双重密封结构的密封效果更好。
可以理解的，以上实施例仅表达了本发明的优选实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制；应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，可以对上述技术特点进行自由组合，还可以做出若干变形和改进，这些都属于本发明的保护范围；因此，凡跟本发明权利要求范围所做的等同变换与修饰，均应属于本发明权利要求的涵盖范围。

Claims (10)

  1. 一种微波加热组件，用于加热气溶胶生成制品（20），其特征在于，包括：
    外导体单元（1），其包括一个封闭端（11）、一个与所述封闭端（11）相对的开口端（12）以及一个形成于所述封闭端（11）和所述开口端（12）之间的腔体（13）；
    内导体单元（2），其设置在所述腔体（13）中，并包括辐射结构（21）和内导体主体（22）；
    收容座（4），其连接于所述开口端（12）上，并包括用于收容气溶胶生成制品（20）的收容腔（40），所述收容腔（40）位于所述腔体（13）中；以及
    密封座（5），呈筒状，其设置于所述内导体主体（22）与所述收容座（4）之间，并包括密封侧壁（51），所述密封侧壁（51）被配置为减少加热过程中冷凝液的产生；
    所述辐射结构（21）穿过所述密封座（5）和所述收容座（4）并伸入至所述收容腔（40）中，且所述密封座（5）和所述收容座（4）分别与所述辐射结构（21）过盈配合。
  2. 根据权利要求1所述的微波加热组件，其特征在于，所述密封座（5）固定于所述内导体主体（22）上。
  3. 根据权利要求1所述的微波加热组件，其特征在于，所述密封侧壁（51）抵接于所述外导体单元（1）。
  4. 根据权利要求1所述的微波加热组件，其特征在于，所述收容座（4）至少部分位于所述密封座（5）内，并可相对所述密封座（5）移动。
  5. 根据权利要求1所述的微波加热组件，其特征在于，所述收容座（4）包括收容端壁（421）以及围设在所述收容端壁（421）周缘的收容侧壁（422），所述收容端壁（421）上设有可供所述辐射结构（21）穿设其中的通孔（4211），所述通孔（4211）沿所述外导体单元（1）的轴向贯通。
  6. 根据权利要求5所述的微波加热组件，其特征在于，所述收容座（4）还包括凸部（43），所述凸部（43）设置于所述收容端壁（421）上，并沿所述通孔（4211）周缘向所述开口端（12）延伸。
  7. 根据权利要求5所述的微波加热组件，其特征在于，所述微波加热组件（10）还包括密封件（6），所述密封件（6）设置在所述收容端壁（421）上且覆盖所述通孔（4211），所述密封件（6）上设置有穿孔（61）；所述辐射结构（21）穿过所述穿孔（61）时，所述密封件（6）与所述辐射结构（21）过盈配合。
  8. 根据权利要求1所述的微波加热组件，其特征在于，所述内导体单元（2）还包括导体柱（221），其包括相对的固定端（2211）和自由端，所述固定端（2211）固定于所述外导体单元（1），并与所述外导体单元（1）欧姆接触。
  9. 根据权利要求8所述的微波加热组件，其特征在于，所述内导体单元（2）还包括导体盘（222），所述导体盘（222）连接于所述自由端，所述导体盘（222）的外径大于所述导体柱（221）的外径，且小于所述外导体单元（1）的内径。
  10. 一种气溶胶产生装置，其特征在于，包括微波发生单元以及权利要求1至9任一项所述的微波加热组件（10），所述微波加热组件（10）还包括连接于所述外导体单元（1）上的微波馈入单元（3），所述微波馈入单元（3）与所述微波发生单元相连接，并将所述微波发生单元产生的微波馈入至所述腔体（13）中。
PCT/CN2024/093503 2023-06-14 2024-05-15 气溶胶产生装置及其微波加热组件 Ceased WO2024255518A1 (zh)

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