WO2023035856A1 - 气溶胶生成装置 - Google Patents

气溶胶生成装置 Download PDF

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Publication number
WO2023035856A1
WO2023035856A1 PCT/CN2022/111943 CN2022111943W WO2023035856A1 WO 2023035856 A1 WO2023035856 A1 WO 2023035856A1 CN 2022111943 W CN2022111943 W CN 2022111943W WO 2023035856 A1 WO2023035856 A1 WO 2023035856A1
Authority
WO
WIPO (PCT)
Prior art keywords
aerosol generating
generating device
sleeve
tube
heating body
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/CN2022/111943
Other languages
English (en)
French (fr)
Inventor
叶世栋
张幸福
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 Maishi Technology Co Ltd
Original Assignee
Shenzhen Merit Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Merit Technology Co Ltd filed Critical Shenzhen Merit Technology Co Ltd
Priority to JP2024514368A priority Critical patent/JP7735549B2/ja
Priority to EP22866330.8A priority patent/EP4399984B1/en
Publication of WO2023035856A1 publication Critical patent/WO2023035856A1/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
    • A24F47/00—Smokers' requisites not otherwise provided for
    • 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
    • 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
    • A24F40/46—Shape or structure of electric heating means

Definitions

  • the present application relates to the technical field of electronic atomization, in particular to an aerosol generating device.
  • the aerosol-generating device heats the aerosol-generating substrate by heating the aerosol-generating substrate to generate an aerosol that can be inhaled by the user.
  • the baking The baking method can greatly reduce the harmful components in the aerosol, so that the aerosol generating device has a broad market demand.
  • the aerosol generating device usually includes a heating body and a power supply assembly.
  • the heating body can be inserted into the inside of the aerosol generating substrate.
  • the power supply assembly supplies power to the heating body.
  • the heating body converts electrical energy into heat energy to heat and atomize the aerosol generating substrate to obtain an Sol.
  • the application provides an aerosol generating device, the aerosol generating device has a storage space for accommodating the aerosol generating substrate; the aerosol generating device also includes:
  • a heating body at least part of which extends into the receiving space, so as to be able to heat the aerosol-generating substrate
  • the sleeve includes a first pipe body and a second pipe body, the first pipe body and the second pipe body are closed at both ends to form a vacuum space surrounding the outside of the receiving space, The length of the vacuum space is greater than the length of the heating body.
  • the sleeve further includes a third tube body, the first tube body and the second tube body are respectively closed with the third tube body at both ends to form a multi-layered vacuum space.
  • the sides of the first pipe body, the second pipe body and the third pipe body facing away from the heating body are all covered with a heat insulating layer.
  • the wall thickness of the first tube body and the second tube body is less than 0.2mm.
  • the aerosol generating device further includes a first fixing member for fixing the sleeve, and the first fixing member bears against a side of the sleeve facing away from the heating body, And corresponds to the region with the vacuum space.
  • the first fixing member acts on a middle position on the sleeve corresponding to the vacuum space.
  • the first fixing part is in indirect contact with the sleeve through a heat insulating part.
  • the aerosol generating device further includes a second fixing part and a third fixing part, and the second fixing part and the third fixing part respectively fix the sleeve from both ends of the sleeve.
  • the aerosol generating device further includes a support frame, the heating body is installed on the support frame; there are a plurality of third fixing members, and the plurality of third fixing members are connected to each other at intervals. on the support frame and work together on the same end face of the sleeve.
  • the aerosol generating device further includes an extractor, the extractor surrounds the receiving space, and at least part of the extractor is housed inside the casing; the casing and the Extractor interval setting.
  • a through hole is opened on the extractor, the heating body extends into the receiving space through the through hole, and there is a gap between the heating body and an inner wall of the through hole.
  • the aerosol generating device includes a support frame, the heating body is installed on the support frame; the support frame is spaced apart from the extractor.
  • the aerosol generating device includes an outer tube, and both the heating body and the sleeve are accommodated inside the outer tube.
  • said outer tube comprises two nested tubes joined at an edge and forming a vacuum chamber between said tubes surrounding said sleeve.
  • Figure 1 is an isometric view of an aerosol generating device of some embodiments
  • Fig. 2 is a front view (a) and a right view (b) of the aerosol generating device shown in Fig. 1;
  • Fig. 3 is a cross-sectional view of the aerosol generating device shown in Fig. 2 along the B-B direction;
  • Fig. 4 is a cross-sectional view of the aerosol generating device shown in Fig. 2 along the direction A-A;
  • Fig. 5 is the enlarged schematic diagram of the structure at E place in Fig. 3;
  • Figure 6 is a schematic enlarged view of the structure at F in Figure 4.
  • Fig. 7 is a schematic diagram of cooperation of key elements associated with the heating element and the sleeve in the structure shown in Fig. 6;
  • Fig. 8 is a schematic structural view of the casing in Fig. 7;
  • Fig. 9 is a schematic structural view of the integral formation of the support frame and the third fixing part in Fig. 7;
  • FIG. 10 is a schematic structural diagram of the extractor in FIG. 7 .
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • a first feature being "on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • the present application protects an aerosol generating device 10 .
  • the aerosol generating device 10 generally extends into a rod-shaped structure, the extension direction of the aerosol generating device 10 is defined as the axial direction, and the direction perpendicular to the axial direction is the radial direction.
  • the direction of the Z axis is the axial direction
  • the X axis and the Y axis are both perpendicular to the Z axis
  • the directions of the X axis and the Y axis are both radial directions of the aerosol generating device 10 .
  • the aerosol generating device 10 has a storage space 11 for accommodating an aerosol generating substrate 20 .
  • the aerosol generating device 10 includes a heating body 13 and a sleeve 12 . At least part of the heating body 13 protrudes into the receiving space 11 to be able to heat the aerosol-generating substrate 20 .
  • the sleeve 12 surrounds the receiving space 11 .
  • the sleeve 12 includes a first tube body 126 and a second tube body 122 .
  • the first tube body 126 and the second tube body 122 are closed at both ends to form a vacuum space 121 surrounding the receiving space 11 .
  • the length of the vacuum space 121 is greater than that of the heating body 13 .
  • the heating body 13 can be inserted into the inside of the aerosol generating substrate 20.
  • the aerosol-generating substrate 20 is heated and atomized to obtain an aerosol.
  • the casing 12 is arranged around the outer periphery of the receiving space 11 , and the length of the vacuum space 121 is greater than the length of the heating body 13 .
  • the heating body 13 is located between the plane H1 and the plane H2 in the axial direction, and the area between the planes H1 and H2 needs to have a corresponding vacuum space 121 in the radial direction.
  • the heat insulation effect of the vacuum space 121 can confine more heat in the space surrounded by the sleeve 12, and block the conduction of the heat generated by the entire heating body 13 along the radial direction, so that a large amount of heat generated by the heating body 13
  • the heat will be concentrated inside the containing space 11 to heat the aerosol-generating substrate 20, so as to realize effective utilization of heat and improve energy utilization rate.
  • the heat transmitted to the outer periphery of the aerosol generating device 10 in the radial direction will be reduced, thereby helping to reduce the temperature of the outer periphery of the aerosol generating device 10, avoiding The temperature around the aerosol generating device 10 is too high, which affects user experience.
  • the sleeve 12 with the vacuum space 121 has better heat insulation effect and can improve energy utilization.
  • the temperature field of the heating body 13 in this application will not change, and will not affect the taste of the aerosol, and the higher energy utilization rate can make the aerosol
  • the generating matrix 20 can be heated and atomized more fully, which can help to achieve a better inhalation taste.
  • the second tube body 122 includes a spacer portion 123 and two connecting portions 124 , and the two connection portions 124 are respectively connected to two axial ends of the spacer portion 123 .
  • the connecting portion 124 is connected with the end of the first tube body 126 , and a gap is formed between the spacer portion 123 and the first tube body 126 , and the vacuum space 121 is obtained by vacuuming the gap.
  • the sleeve 12 can also include a third tube body (not shown), the first tube body 126, the second tube body 122 are closed with the third tube body at both ends to form a surrounding space outside The multi-layer vacuum space 121.
  • the third pipe body is located between the first pipe body 126 and the second pipe body 122, so that there A vacuum space 121 is formed, so that the vacuum space 121 has multiple layers in the radial direction, which can better block heat transfer in the radial direction. Further, there may be multiple third tube bodies located between the first tube body 126 and the second tube body 122 , so that a larger number of vacuum spaces 121 can be obtained in the radial direction.
  • multiple sleeves 12 may also be provided, and multiple sleeves 12 are nested in sequence. It can be understood that a plurality of sleeves 12 means that the number of sleeves 12 is two or more. By arranging multiple sleeves 12 , multiple vacuum spaces 121 can also be configured in the radial direction, so that heat transfer in the radial direction can be better blocked.
  • the wall thickness of the first tube body 126 and the second tube body 122 is less than 0.2 mm. It can be understood that when the wall thickness is large, the heat will be transferred along the first pipe body 126 and the second pipe body 122, and the sleeve 12 cannot be effectively insulated. Therefore, the first pipe body 126 and the second pipe body The wall thickness of the second pipe body 122 is less than 0.2mm, which can reduce heat transfer along the casing 12 and also make full use of the vacuum space 121 to achieve better heat insulation effect.
  • the space surrounded by the vacuum space 121 specifically refers to the receiving cavity 125 surrounded by the first tube body 126 on the side facing away from the vacuum space 121 . Both the receiving space 11 and the heating body 13 are located in the receiving cavity 125 . It can be understood that since the sleeve 12 is surrounded by the outer periphery of the storage space 11, the space surrounded by the sleeve 12 is the storage cavity 125, which is located inside the sleeve 12, and the sleeve 12 is open at both ends.
  • the vacuum space 121 is located inside the solid structure of the casing 12 and makes the casing 12 a sandwich structure. Therefore, the vacuum space 121 surrounds the containing cavity 125 .
  • the accommodating cavity 125 penetrates both ends of the casing 12 in the axial direction, so that the accommodating space 11 can extend from the opening at one end of the casing 12 into the accommodating cavity 125, and the heating element 13 can be installed in the opening at the other end of the casing 12. Inside the accommodation cavity 125 .
  • the accommodating cavity 125 can only penetrate through one end of the sleeve 12 in the axial direction, so that one end of the sleeve 12 is open and the other end is closed.
  • the heating body 13 can be installed in the receiving cavity 125 close to the closed end of the sleeve 12 , and the receiving space 11 can extend from the open end of the sleeve 12 into the receiving cavity 125 .
  • the sides of the first pipe body 126 , the second pipe body 122 and the third pipe body away from the heating body are all covered with a heat insulating layer.
  • heat transfer in the radial direction can be further blocked by setting the heat insulation layer.
  • the side of the second pipe body 122 facing away from the heating body 13 is entirely covered with the heat insulating layer 14 .
  • the second pipe body 122 can be coated with aerogel to utilize the low thermal conductivity of the aerogel to form the heat insulation layer 14 .
  • the heat insulation layer 14 may also be formed by forming gaps between the area with more second pipe body 122 and other adjacent components, and utilizing the relatively low thermal conductivity of the air in the gaps.
  • the heat insulating layer 14 should not only cover the area corresponding to the vacuum space 121 on the sleeve 12, but also cover the areas at both ends of the sleeve 12 in the axial direction, so as to prevent the heat conduction of the entire sleeve 12 in the radial direction .
  • the aerosol generating device 10 includes a first fixing member 15 , and the first fixing member 15 fixes the sleeve 12 in a radial direction. Furthermore, the first fixing member 15 is in a tubular structure so as to be sleeved on the periphery of the sleeve 12 , and the sleeve 12 cannot move inside the first fixing member 15 in the radial direction. Further, by coating the airgel on the second tube body 122, the gap between the first fixing member 15 and the casing 12 can be filled while the heat insulation layer 14 is formed, so as to seal the first fixing member 15 It is relatively fixed with the casing 12.
  • the first fixing member 15 abuts against the side of the sleeve 12 away from the heating body 13 and corresponds to the area of the vacuum space 121 . It can be understood that under the heat insulation effect of the vacuum space 121, heat will be more transmitted to both ends of the sleeve 12 along the axial direction, so that the temperature of the sleeve 12 in the area corresponding to the vacuum space 121 is lower than that of the sleeve 12. The temperature at both ends, by making the first fixing member 15 against the area corresponding to the vacuum space 121 on the sleeve 12, while realizing the radial fixing effect of the first fixing member 15 on the sleeve 12, it can also reduce the heat transfer to the second A transfer of the fixing part 15.
  • the connecting portion 124 more heat will be transferred to the connecting portion 124 , while the temperature on the barrier portion 123 corresponding to the vacuum space 121 is relatively low, and the first fixing member 15 acts on the barrier portion 123 .
  • a connecting bump is protruded on the barrier portion 123 , and the first fixing member 15 is abutted against the connecting bump.
  • there will be a gap between the partition portion 123 and the first fixing member 15 and the gap can constitute the heat insulation layer 14 .
  • the first fixing member 15 acts on a middle position on the casing 12 corresponding to the vacuum space 121 .
  • the middle position of the vacuum space 121 is specifically understood as the middle position of the vacuum space 121 along the axial direction. It can be understood that the temperature at both ends of the sleeve 12 along the axial direction is higher, and the farther away from the two ends, the lower the temperature will be. In this way, by making the first fixing member 15 act on the middle position of the vacuum space 121 in the axial direction, it can The transfer of heat to the first fixing member 15 is further reduced.
  • the first fixing part 15 is a plastic fixing part. It can be understood that the first fixing part 15 is made of plastic material, so that the first fixing part 15 will have low thermal conductivity, thereby reducing heat transfer in the radial direction.
  • the first fixing member 15 and the sleeve 12 are in indirect contact through a heat insulating member. It can be understood that by disposing a heat insulating member between the first fixing member 15 and the sleeve 12 , heat transfer from the sleeve 12 to the first fixing member 15 can be blocked.
  • the first fixing member 15 and the casing 12 are connected at intervals through the heat insulation layer 14, and the heat insulation layer 14 is sufficient. Realize the function of heat insulation.
  • a connecting bump is protruded, and the first fixing member 15 and the connecting bump can be coated with airgel. Indirect connection, airgel can realize the function of heat insulation.
  • the two ends of the first fixing member 15 in the axial direction are spaced apart from the two connecting parts 124 at the two ends of the sleeve 12 along the axial direction to form a gap, thereby utilizing the relatively low thermal conductivity of the air in the gap.
  • a heat insulation structure is formed, thereby reducing the heat transfer along the radial direction at both ends of the casing 12 .
  • the aerosol generating device 10 includes a second fixing member 16 and a third fixing member 17. Fixed sleeve 12. It can be understood that the second fixing member 16 and the third fixing member 17 are respectively connected to two end surfaces of the sleeve 12 , and the two cooperate to fix the sleeve 12 in the axial direction.
  • the second fixing member 16 is in the shape of an annular disk, so as to be able to completely cover one end surface of the sleeve 12 . Specifically, the second fixing member 16 covers an end of the sleeve 12 where the receiving space 11 extends into the receiving cavity 125 .
  • the second fixing part 16 is a plastic fixing part, so as to reduce heat transfer from the sleeve 12 to the second fixing part 16 .
  • the indirect contact between the second fixing member 16 and the sleeve 12 is through a heat insulating member, so as to reduce heat transfer from the sleeve 12 to the second fixing member 16 .
  • the heat insulating element may be aerogel coated on the end surface of the casing 12 .
  • the first fixing part 15 extends in the axial direction and is integrally formed with the second fixing part 16 , so as to reduce the installation complexity of the first fixing part 15 and the second fixing part 16 .
  • the third fixing part 17 is a plastic fixing part, so as to reduce heat transfer from the sleeve 12 to the third fixing part 17 .
  • the indirect contact between the third fixing member 17 and the sleeve 12 is through a heat insulating member, so as to reduce heat transfer from the sleeve 12 to the third fixing member 17 .
  • the heat insulating element may be aerogel coated on the end surface of the casing 12 .
  • the aerosol generating device 10 includes a support frame 18, and the heating body 13 is installed on the support frame 18; there are multiple third fixing parts 17, and the plurality of third fixing parts 17 are all connected on the support frame 18 and act on the same end surface of the sleeve 12 at intervals.
  • the support frame 18 is located in the receiving cavity 125 to provide support for the heating body 13.
  • the third fixing member 17 is connected with the support frame 18 , protrudes out of the receiving cavity 125 , and is bent radially toward the side of the sleeve 12 so as to abut against the end surface of the sleeve 12 in the axial direction.
  • a plurality of third fixing pieces 17 are arranged at intervals, so that gaps can be formed between two adjacent third fixing pieces 17, thereby reducing the contact area with the end surface of the sleeve 12, thereby reducing heat transfer between the sleeve 12 and the third fixing piece. Mutual transfer between pieces 17.
  • a plurality of third fixing pieces 17 are integrally formed with the support frame 18 . Since the support frame 18 provides support for the heating body 13, the whole of the support frame 18 and the third fixing member 17 can be made of plastic material, and the low thermal conductivity of the plastic material can be used to reduce the heat generated by the heating body 13. The conduction of the three mounts 17 to the sleeve 12 allows more energy to be applied to heat the aerosol-generating substrate 20 . It should be pointed out that, in other embodiments, the third fixing member 17 and the support frame 18 may also be independent of each other.
  • the support frame 18 has a hollow structure
  • the heating body 13 includes a terminal 131 and a heating end 132.
  • the terminal 131 can be accommodated inside the support frame 18, and the heating end 132 extends out of the support frame 18 and is inserted into the aerosol.
  • the aerosol generating device 10 includes a gasket 19, the gasket 19 is accommodated inside the support frame 18, and is sealed between the terminal 131 and the support frame 18, so as to seal the passage on the support frame 18 through which the heating body 13 penetrates.
  • the holes 181 are sealed to prevent dust or fluids from entering the interior of the support frame 18 .
  • the aerosol generating device 10 includes a first base 21 , and the first base 21 is accommodated in the supporting frame 18 to abut against the terminal 131 to provide stable support for the terminal 131 .
  • the end of the support frame 18 away from the through hole 181 is in an open structure.
  • the aerosol generating device 10 includes a second base 22 , the second base 22 is accommodated in the support frame 18 and blocks the opening of the support frame 18 .
  • the gasket 19 is made of silica gel
  • the support frame 18, the first base 21, and the second base 22 are all made of plastic, and the components cooperate with each other to block the heat generated by the terminal 131 of the heating body 13 at the support frame 18.
  • the second base 22 extends from the inside of the support frame 18 to the outside of the support frame 18 and is bent along with the bending of the third fixing member 17 so as to act on the casing 12 together with the third fixing member 17 in the axial direction.
  • the aerosol generating device 10 includes an extractor 23, the extractor 23 surrounds the storage space 11, part of the extractor 23 is accommodated inside the sleeve 12, and part of the extractor 23 is located in the sleeve 12, the casing 12 is spaced apart from the extractor 23. It will be appreciated that the extractor 23 provides space for the placement of the aerosol-generating substrate 20 . Part of the extractor 23 is located in the receiving chamber 125, and part of the extractor 23 is located outside the receiving chamber 125.
  • the aerosol generating substrate 20 when the aerosol generating substrate 20 is a cigarette, it can help to make the aerosol generating substrate 20 in the casing 12 Being heated and atomized at high temperature, the temperature of the aerosol-generating substrate 20 outside the sleeve 12 is relatively low, so that the user can inhale the aerosol-generating substrate 20 .
  • the entirety of the extractor 23 located within the casing 12 .
  • the sleeve 12 and the extractor 23 are spaced apart, that is, there is a gap between the outer wall surface of the extractor 23 and the inner wall surface of the housing cavity 125 on the sleeve 12, which can help to further block the self-extraction of heat. The transmission of the device 23 to the casing 12.
  • a through hole 231 is opened on the extractor 23 , the heating body 13 extends into the receiving space 11 through the through hole 231 , and there is a gap between the heating body 13 and the inner wall of the through hole 231 .
  • the extractor 23 includes a peripheral side wall 232 and a bottom wall 233 connected to the peripheral side wall 232 .
  • the peripheral side wall 232 and the bottom wall 233 together form a barrel structure with one end open and the other end closed.
  • the through hole 231 is located on the bottom wall 233 .
  • the heating body 13 extends into the receiving space 11 through the through hole 231 , and can be inserted into the aerosol generating substrate 20 in the receiving space 11 . Further, the heating body 13 is not in contact with the inner wall of the through hole 231 , which can effectively reduce the conduction of heat from the heating body 13 to the extractor 23 , so that more heat can be used to heat the aerosol generating substrate 20 .
  • the support frame 18 is spaced apart from the extractor 23 . It can be understood that the support frame 18 is arranged close to the bottom wall 233 of the extractor 23 and arranged at intervals in the axial direction in the receiving chamber 125 , so that the heat conduction between the extractor 23 and the support frame 18 can be blocked.
  • the support frame 18 and the extractor 23 are arranged at intervals, which also helps to make the gap between the sleeve 12 and the extractor 23, the support frame 18 and the extraction
  • the gaps between the devices 23 and the through-holes 231 are sequentially connected to form a channel for the airflow to flow into the aerosol generating matrix 20 for the user to inhale, so that the cold airflow will preferentially enter between the casing 12 and the extractor 23
  • the gap between the two absorbs the heat between the two, and plays the role of cooling and heat insulation.
  • the temperature rises it enters the aerosol generating matrix 20 along the through hole 231, which also helps to heat the aerosol generating matrix 20 and enhance energy efficiency.
  • the aerosol generating device 10 includes an outer tube 24 , and the heating body 13 and the sleeve 12 are housed inside the outer tube 24 .
  • the outer tube 24 serves as an appearance structural part of the aerosol generating device 10, which will be in direct contact with the user.
  • the outer tube 24 comprises two nested tubes (not shown) joined at the edges and forming a vacuum chamber therebetween that surrounds the sleeve 12, and The entirety of the sleeve 12 is located in the space surrounded by the vacuum chamber.
  • the outer tube 24 has a structure similar to that of the casing 12, so that the inside of the outer tube 24 has a vacuum chamber for heat insulation, so that the outer tube 24 cooperates with the casing 12 to achieve better heat insulation effect.
  • the sleeve 12 can also be directly used as the outer tube 24 , and at this time, both the heating body 13 and the receiving space 11 are still located in the receiving cavity 125 surrounded by the sleeve 12 .
  • the aerosol generating device 10 includes a power supply assembly 25 installed inside the outer tube 24.
  • the power supply assembly 25 is connected to the heating body 13 to supply power to the heating body 13, so that the heating body 13 converts electrical energy into heat to heat the atomized aerosol.
  • a matrix 20 is generated.
  • the outer tube 24 includes a first tube 241 and a second tube 242 that is detachably connected to the first tube 241.
  • the first tube 241 and the second tube 242 are mated and connected in the axial direction, and together form a container. space for each functional component.
  • the power supply assembly 25 is installed in the second tube 242 .
  • the heating body 13 , the sleeve 12 , and the accommodating space 11 are more located in the first tube 241 in the axial direction.
  • the aerosol generating device 10 includes a support base 26 , and the support base 26 is fixed inside the second tube 242 .
  • the third fixing member 17 abuts against the supporting seat 26 , and the supporting seat 26 provides the third fixing member 17 with an axial support function.
  • the second base 22 is placed on the supporting base 26 , and the supporting base 26 indirectly supports the third fixing member 17 by supporting the second base 22 , so as to fix the casing 12 in the axial direction.
  • the first fixing member 15 is connected to the supporting seat 26 , and the supporting seat 26 can also support the whole formed by the first fixing member 15 and the second fixing member 16 in the vertical direction.
  • the part of the extractor 23 outside the casing 12 is fixedly connected to the outer tube 24 .
  • the outer tube 24 is provided with a port 243 at a position corresponding to the receiving space 11 for the aerosol generating substrate 20 to extend into the receiving space 11, and the extractor 23 is provided with a channel 234 communicating with the channel 243.
  • the channel 234 is along the Extends axially and communicates with the gap between the casing 12 and the extractor 23 at the same time, so that the external airflow can enter the through groove 234 and the gap between the casing 12 and the extractor 23 from the port 243 .
  • the heat insulation layer 14 formed by coating the airgel on the outermost periphery of the casing 12 extends in the axial direction, and the part of the second base 22 that is bent with the third fixing member 17 Part radially exceeds the third fixing member 17 and abuts against the heat insulation layer 14 to achieve sealing, thereby blocking the communication between the receiving cavity 125 and the inner space of the second tube 242 at one end of the receiving cavity 125 .
  • the first fixing part 15 realizes sealing at the junction with the first tube 241 and the second tube 242, so that the whole formed by the first fixing part 15 and the second fixing part 16 faces the side of the first tube 241 and the second tube 241.
  • the tubes 242 are cut off, so that the gap between the whole body and the first tube 241 is only connected to the housing cavity 125 in the casing 12, so that dust and fluid in the housing cavity 125 can be prevented from entering the second tube 242 and causing damage to the tube.
  • the power supply component 25 causes adverse effects.
  • the aerosol generating device 10 of the present application by blocking the conduction of the heat generated by the entire heating body 13 in the radial direction, a large amount of heat generated by the heating body 13 will be concentrated in the housing space 11 to heat the aerosol generating substrate 20 , so as to realize the effective utilization of heat and increase the energy utilization rate by more than 8%.
  • it also helps to reduce the heat transmitted to the outer periphery of the aerosol generating device 10 in the radial direction, thereby helping to reduce the temperature of the outer periphery of the aerosol generating device 10, and avoiding that the temperature of the outer periphery of the aerosol generating device 10 is too high to affect user experience.
  • the design scheme of the present application can reduce the temperature of the outer periphery by more than 5°C.

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Abstract

一种气溶胶生成装置(10)，气溶胶生成装置(10)具有收容气溶胶生成基质(20)的收容空间(11)；气溶胶生成装置(10)还包括加热体(13)及套管(12)；至少部分加热体(13)伸入至收容空间(11)内，以能够对气溶胶生成基质(20)进行加热；套管(12)包括第一管体(126)和第二管体(122)，第一管体(126)和第二管体(122)在两端处封闭，以形成环绕于收容空间(11)外部的真空空间(121)，真空空间(121)的长度大于加热体(13)的长度。

Description

气溶胶生成装置 技术领域
本申请涉及电子雾化技术领域，特别是涉及气溶胶生成装置。
背景技术
气溶胶生成装置通过加热不燃烧的烘烤方式对气溶胶生成基质进行加热，从而生成可供用户抽吸的气溶胶，与直接将气溶胶生成基质燃烧以产生气溶胶的方式相比，该烘烤方式可以大大降低气溶胶中的有害成分，从而使气溶胶生成装置有着广阔的市场需求。气溶胶生成装置通常包括加热体和电源组件，加热体能够插入至气溶胶生成基质内部，电源组件对加热体供电，加热体将电能转化为热能以对气溶胶生成基质进行加热雾化而得到气溶胶。
目前，加热体耗费的能量仅有不到13％被应用于气溶胶生成基质的加热，其余的大量能量会传导至加热体外围的外管上并最终散失。为解决气溶胶生成装置的能量利用率低的问题，目前采用的解决方式主要有两种：一种为采用低导热率的元件，但该方式会受限于材料类型，达到的效果非常有限；另一种为改善加热体的温度场，但该方式将会由于加热体的温度场的改变而影响气溶胶的抽吸口感。
发明内容
基于此，有必要提供一种气溶胶生成装置。
本申请提供一种气溶胶生成装置，所述气溶胶生成装置具有收容气溶胶生成基质的收容空间；所述气溶胶生成装置还包括：
加热体，至少部分所述加热体伸入至所述收容空间内，以能够对气溶胶生成基质进行加热；及
套管，所述套管包括第一管体和第二管体，所述第一管体和所述第二管体在两端处封闭，以形成环绕于所述收容空间外部的真空空间，所述真空空间的长度大于所述加热体的长度。
在一实施例中，所述套管还包括第三管体，所述第一管体、所述第二管体分别与所述第三管体在两端处封闭形成环绕所述收容空间外部的多层的真空空间。
在一实施例中，所述第一管体、所述第二管体和所述第三管体背离所述加热体的一侧均覆盖有隔热层。
在一实施例中，所述第一管体与所述第二管体的壁厚小于0.2mm。
在一实施例中，所述气溶胶生成装置还包括用于固定所述套管的第一固定件，所述第一固定件抵持于所述套管的背离所述加热体的一侧、且对应有所述真空空间的区域。
在一实施例中，所述第一固定件作用于所述套管上对应所述真空空间的中间位置。
在一实施例中，所述第一固定件与所述套管之间通过隔热件间接接触。
在一实施例中，所述第一固定件沿轴向的两端与所述套管沿轴向的两端之间均存在间隙。
在一实施例中，所述气溶胶生成装置还包括第二固定件及第三固定件，所述第二固定 件与第三固定件分别从所述套管的两端固定所述套管。
在一实施例中，所述气溶胶生成装置还包括支撑架，所述加热体安装于所述支撑架上；所述第三固定件为多个，多个所述第三固定件间隔连接于所述支撑架上，且共同作用于所述套管的同一端面。
在一实施例中，所述气溶胶生成装置还包括提取器，所述提取器围成所述收容空间，至少部分所述提取器容置于所述套管内部；所述套管与所述提取器间隔设置。
在一实施例中，所述提取器上开设有贯通孔，所述加热体经由所述贯通孔延伸至所述收容空间内，且所述加热体与所述贯通孔的内壁之间存在间隙。
在一实施例中，所述气溶胶生成装置包括支撑架，所述加热体安装于所述支撑架上；所述支撑架与所述提取器间隔设置。
在一实施例中，所述气溶胶生成装置包括外管，所述加热体及所述套管均收容于所述外管内部。
在一实施例中，所述外管包括两个嵌套的管子，两个所述管子在边缘处连接，并在两个所述管子之间形成环绕所述套管的真空腔室。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和有点将从说明书、附图以及权利要求书变的明显。
附图说明
为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。
图1为一些实施例的气溶胶生成装置的轴测图；
图2为图1所示气溶胶生成装置的主视图(a)及右视图(b)；
图3为图2中所示气溶胶生成装置沿B-B方向的剖视图；
图4为图2中所示气溶胶生成装置沿A-A方向的剖视图；
图5为图3中E处的结构放大示意图；
图6为图4中F处的结构放大示意图；
图7为图6中所示结构中与发热体及套管相关联的关键元件的配合示意图；
图8为图7中套管的结构示意图；
图9为图7中支撑架与第三固定件一体成型的结构示意图；
图10为图7中提取器的结构示意图。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”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，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以 特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，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”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”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，除非另有明确的限定。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申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
如图1所示，本申请保护一种气溶胶生成装置10。气溶胶生成装置10一般延伸呈杆状结构，定义气溶胶生成装置10的延伸方向为轴向，与轴向相垂直的方向即为径向。如图1所示，Z轴的方向即为轴向，X轴、Y轴均与Z轴相垂直，X轴、Y轴的方向均为气溶胶生成装置10的径向。
结合图2至图8所示，气溶胶生成装置10具有收容气溶胶生成基质20的收容空间11。气溶胶生成装置10包括加热体13及套管12。至少部分加热体13伸入至收容空间11内，以能够对气溶胶生成基质20进行加热。套管12围设于收容空间11外围。套管12包括第一管体126和第二管体122，第一管体126与第二管体122在两端处封闭，以形成环绕于收容空间11外部的真空空间121。真空空间121的长度大于加热体13的长度。
可以理解，在收容空间11内放置气溶胶生成基质20后，加热体13能够插入至气溶胶生成基质20内部，在加热体13通电并产生热量后，加热体13自气溶胶生成基质20内部对气溶胶生成基质20进行加热雾化而得到气溶胶。
另外，在收容空间11的外围围设套管12，并使真空空间121的长度大于加热体13的长度。具体地，如图7中所示，加热体13在轴向上位于平面H1与平面H2之间，则平面H1与H2之间的区域，在径向上都需要对应有真空空间121，如此，利用真空空间121的隔热作用，可以将更多的热量限定在套管12所围成的空间内，阻断整个加热体13所产生的热量沿径向的传导，如此，加热体13产生的大量热量将集中于收容空间11内部以加热气溶胶生成基质20，从而实现热量的有效利用，提高能量利用率。
另外，由于套管12内真空空间121的隔热作用，将会使沿径向被传导至气溶胶生成装置10外周的热量减少，从而有助于使气溶胶生成装置10外周的温度降低，避免气溶胶生成装置10外周的温度过高而影响用户体验。
此外，与常规采用低导热率(例如塑胶材质)的元件相比，具有真空空间121的套管12具有更好的隔热作用，更能提高能量的利用率。同时，与常规采用改善加热体温度场的方式相比，本申请中加热体13的温度场不会发生改变，不会影响气溶胶的抽吸口感， 而较高的能量利用率可以使得气溶胶生成基质20能够更加充分地被加热雾化，可以有助于达到较好的抽吸口感。
结合图7与图8所示，具体地，第二管体122包括隔档部123及两个连接部124，两个连接部124分别连接于隔档部123沿轴向的两端。第二管体122中，连接部124与第一管体126的末端连接在一起，隔档部123与第一管体126之间形成间隙，通过对该间隙抽真空以得到真空空间121。
在一些实施例中，还可以使套管12包括第三管体(未示出)，第一管体126、第二管体122分别与第三管体在两端处封闭形成环绕收容空间外部的多层真空空间121。
可以理解，第三管体位于第一管体126与第二管体122之间，从而在第三管体与第一管体126之间、第三管体与第二管体122之间均形成有真空空间121，从而使得真空空间121在径向上具有多层，如此可以更好地阻断热量沿径向的传递。进一步地，位于第一管体126与第二管体122之间的第三管体可以为多个，从而可以在径向上得到较多数量的真空空间121。
在一些实施例中，还可以设置多个套管12，多个套管12依次嵌套。可以理解，多个套管12是指套管12的数量为两个及两个以上。通过设置多个套管12，也能够在径向上构造多个真空空间121，从而可以更好地阻断热量沿径向的传递。
具体地，第一管体126与第二管体122的壁厚小于0.2mm。可以理解，在壁厚较大时，热量将沿第一管体126与第二管体122传递，而无法使套管12起到有效的隔热作用，因此，使第一管体126与第二管体122的壁厚小于0.2mm,可以在减少热量沿套管12传递的同时也可以充分利用真空空间121来达到较好的隔热效果。
具体地，对于真空空间121所环绕的空间，其具体是指，第一管体126在背离真空空间121的一侧所围成的收容腔125。收容空间11及加热体13均位于收容腔125内。可以理解，由于套管12围设于收容空间11外围，则套管12所围成的空间即为收容腔125，该收容腔125位于套管12内部，并使套管12呈两端开口的管状结构，而真空空间121位于套管12实体结构的内部，并使套管12呈夹层结构，因而，真空空间121环绕收容腔125。另外，收容腔125沿轴向贯通套管12的两端，则收容空间11能够自套管12的一端开口延伸至收容腔125内，而加热体13能够自套管12的另一端开口安装于收容腔125内。
为了进一步提高套管12的隔热效果，还可以使收容腔125沿轴向仅贯通套管12的一端，从而使套管12的一端开口，一端封闭。如此，加热体13能够安装于收容腔125内，且靠近套管12封闭的一端，收容空间11能够自套管12开口的一端延伸至收容腔125内。
在一些实施例中，第一管体126、第二管体122和第三管体背离加热体的一侧均覆盖有隔热层。通过设置隔热层可以在套管12自身的隔热基础上进一步阻断热量沿径向的传递。
具体地，第二管体122的背离加热体13的一侧全部覆盖有隔热层14。具体地，可以通过在第二管体122上涂覆气凝胶，以利用气凝胶的低导热性，以形成隔热层14。在其他实施例中，还可以通过使第二管体122较多的区域与其它临近部件之间形成间隙，通过利用间隙内空气相对较低的导热特性而形成隔热层14。进一步地，隔热层14不仅要覆盖套管12上对应真空空间121的区域，而且还要覆盖套管12在轴向上处于两端的区域，从而阻止整个套管12的热量沿径向的传导。
结合图5至图8所示，具体地，气溶胶生成装置10包括第一固定件15，第一固定件15沿径向固定套管12。进一步地，第一固定件15呈管状结构，以能够套设于套管12外围，沿径向，套管12无法在第一固定件15内活动。进一步地，通过在第二管体122涂覆气凝胶，在形成隔热层14的同时能够对第一固定件15与套管12之间缝隙进行填充，以起到将第一固定件15与套管12相对固定的作用。
在其他一些实施例中，第一固定件15抵持于套管12的背离加热体13的一侧、且对 应有真空空间121的区域。可以理解，在真空空间121的隔热作用下，热量将更多地向套管12沿轴向的两端传递，从而使套管12在对应真空空间121的区域的温度低于套管12的两端的温度，通过使第一固定件15抵持于套管12上对应真空空间121的区域，在实现第一固定件15对套管12的径向固定作用的同时，还可以减少热量向第一固定件15的传递。
具体地，热量将更多地向连接部124传递，而对应真空空间121的隔档部123上的温度相对较低，第一固定件15作用于隔档部123。具体地，在隔档部123上凸设连接凸块，将第一固定件15与连接凸块抵持即可。在此基础上，隔档部123与第一固定件15之间将存在间隙，该间隙能够构成隔热层14。
进一步地，第一固定件15作用于套管12上对应真空空间121的中间位置。可以理解，真空空间121的中间位置具体理解为真空空间121沿轴向上的中间位置。可以理解，套管12上沿轴向的两端温度较高，越远离两端，则温度将越低，如此通过使第一固定件15作用于真空空间121沿轴向上的中间位置，可以进一步减少热量向第一固定件15的传递。
具体地，第一固定件15为塑胶固定件，可以理解，第一固定件15为塑胶材质，如此，第一固定件15将具有较低的导热性能，从而可以减少热量沿径向的传递。
具体地，在第一固定件15固定套管12的过程中，第一固定件15与套管12之间通过隔热件间接接触。可以理解，通过在第一固定件15与套管12之间设置隔热件，可以阻断热量自套管12向第一固定件15的传递。具体地，在第二管体122涂覆气凝胶而形成隔热层14的实施例中，第一固定件15与套管12之间通过隔热层14间隔连接，隔热层14即可实现隔热件的功能。具体地，在隔档部123上凸设连接凸块，将第一固定件15与连接凸块抵接的实施例中，第一固定件15与连接凸块之间可以通过涂覆气凝胶间接连接，气凝胶即可实现隔热件的功能。
进一步地，第一固定件15沿轴向的两端与套管12沿轴向的两端之间均存在间隙，如此可以减少套管12两端的热量向第一固定件15的传递。可以理解，第一固定件15沿轴向的两端与套管12沿轴向两端的两个连接部124之间间隔开来以形成间隙，从而通过利用间隙内空气相对较低的导热特性而形成隔热结构，进而降低套管12两端的热量沿径向的传递。
继续参考图5至图8所示，具体地，气溶胶生成装置10包括第二固定件16及第三固定件17，第二固定件16与第三固定件17分别从套管12的两端固定套管12。可以理解，第二固定件16与第三固定件17分别与套管12的两个端面连接，两者相配合以沿轴向对套管12进行固定。
进一步地，第二固定件16呈环形的盘状结构，以能够完全覆盖套管12的一个端面。具体地，第二固定件16覆盖套管12的供收容空间11延伸进入收容腔125内的一端。具体地，第二固定件16为塑胶固定件，以能够减少热量自套管12向第二固定件16的传递。具体地，第二固定件16与套管12之间通过隔热件间接接触，以减少热量自套管12向第二固定件16的传递。进一步地，隔热件可以为涂覆在套管12端面上的气凝胶。具体地，第一固定件15沿轴向延伸，并与第二固定件16一体成型，以降低第一固定件15与第二固定件16的安装复杂程度。
进一步地，第三固定件17为塑胶固定件，以能够减少热量自套管12向第三固定件17的传递。具体地，第三固定件17与套管12之间通过隔热件间接接触，以减少热量自套管12向第三固定件17的传递。进一步地，隔热件可以为涂覆在套管12端面上的气凝胶。
结合图5至图9所示，具体地，气溶胶生成装置10包括支撑架18，加热体13安装于支撑架18上；第三固定件17为多个，多个第三固定件17均连接于支撑架18上，且间隔地作用于所述套管12的同一端面。可以理解，支撑架18位于收容腔125内，以为加热 体13提供支撑。另外，第三固定件17与支撑架18连接，且伸出收容腔125之外，并沿径向向套管12一侧折弯而能够在轴向上与套管12的端面相抵。多个第三固定件17间隔设置，如此即可在相邻两个第三固定件17之间形成缺口，从而减少与套管12端面的接触面积，进而减少热量在套管12与第三固定件17之间的相互传递。
进一步地，多个第三固定件17与支撑架18一体成型。由于支撑架18为加热体13提供支撑，可以将支撑架18与第三固定件17的整体设置为塑胶材质，利用塑胶材质的低导热性能来减少加热体13所产生热量经由支撑架18及第三固定件17向套管12的传导，使更多的能量应用于加热气溶胶生成基质20。需要指出的是，在其他实施例中，还可以使第三固定件17与支撑架18彼此相互独立。
具体地，支撑架18呈中空结构，加热体13包括接线端131及加热端132，接线端131能够容置于支撑架18内部，加热端132伸出支撑架18之外，并插入至气溶胶生成基质20内部。进一步地，气溶胶生成装置10包括密封垫19，密封垫19容置于支撑架18内部，且密封于接线端131与支撑架18之间，以将支撑架18上供加热体13贯穿的通孔181密封，以防止灰尘或流体进入支撑架18内部。
进一步地，气溶胶生成装置10包括第一基座21，第一基座21容置于支撑架18内，以抵于接线端131，从而为接线端131提供稳定支撑。
进一步地，为了便于加热体13、密封垫19、第一基座21安装于支撑架18内，支撑架18的远离通孔181的一端呈敞口结构。气溶胶生成装置10包括第二基座22，第二基座22容置于支撑架18内，并封堵支撑架18的敞口处。具体地，密封垫19为硅胶材质，支撑架18、第一基座21、第二基座22均为塑胶材质，各元件彼此配合，以阻断加热体13接线端131在支撑架18处热量沿径向及沿轴向向敞口一侧的传递，使得热量尽可能多的向加热端132传导，进而增加用于加热气溶胶生成基质20的能量，提高能量利用率。具体地，第二基座22自支撑架18内部延伸至支撑架18外部并随第三固定件17的折弯而折弯，以与第三固定件17共同沿轴向作用于套管12。
结合图5至图10所示，具体地，气溶胶生成装置10包括提取器23，提取器23围成收容空间11，部分提取器23容置于套管12内部，部分提取器23位于套管12之外，套管12与提取器23间隔设置。可以理解，提取器23为气溶胶生成基质20的放置提供了空间。部分提取器23位于收容腔125内，部分提取器23位于收容腔125之外，如此，对于气溶胶生成基质20为烟支的情况，可以有助使位于套管12内的气溶胶生成基质20在高温下被加热雾化，位于套管12外的气溶胶生成基质20温度较低，以便于使用者抽吸气溶胶生成基质20。
在其他实施例中，还可以使提取器23的全部均位于套管12内。具体地，套管12与提取器23之间间隔设置，即提取器23的外壁面与套管12上围成收容腔125的内壁面之间存在间隙，可以有助于进一步阻断热量自提取器23向套管12的传递。
具体地，提取器23上开设有贯通孔231，加热体13经由贯通孔231延伸至收容空间11内，且加热体13与贯通孔231的内壁之间存在间隙。提取器23包括周侧壁232及与周侧壁232连接的底壁233，周侧壁232与底壁233共同围成一端开口，另一端封闭的桶状结构。贯通孔231位于底壁233上。在气溶胶生成基质20放置于收容空间11内后，其能够抵于底壁233上，底壁233对气溶胶生成基质20起到限位作用。进一步地，加热体13经由贯通孔231延伸至收容空间11内，并能够插入至收容空间11内的气溶胶生成基质20内部。进一步地，加热体13未与贯通孔231的内壁接触，可以有效减少加热体13上热量向提取器23上的传导，进而使热量更多地用于对气溶胶生成基质20的加热。
具体地，在气溶胶生成装置10包括支撑架18的实施例中，支撑架18与提取器23间隔设置。可以理解，支撑架18靠近提取器23的底壁233设置，且在收容腔125内沿轴向间隔设置，如此，可以阻断提取器23与支撑架18之间的热量传导。具体地，在提取器 23上开设有贯通孔231的实施例中，支撑架18与提取器23间隔设置，还有助于使套管12与提取器23之间的间隙、支撑架18与提取器23之间的间隙、贯通孔231顺次连通而形成供气流流入气溶胶生成基质20内部供使用者抽吸的通道，如此，冷的气流将会优先进入套管12与提取器23之间的间隙从而吸收两者之间的热量，起到冷却隔热的作用，同时在温度升高后沿贯通孔231进入气溶胶生成基质20内，也有助于对气溶胶生成基质20的加热，提升能量利用效率。
结合图1至图3所示，具体地，气溶胶生成装置10包括外管24，加热体13及套管12均收容于外管24内部。可以理解，外管24作为气溶胶生成装置10的外观结构件，其与使用者将直接接触。通过将套管12置于外管24内部，从而在套管12的隔热作用下，可以有效较少沿径向传导至外管24的热量，从而使外管24的温度较低，以为使用者提供较好的使用体验。
在其他实施例中，外管24包括两个嵌套的管子(未示出)，两个管子在边缘处连接，并在两者之间形成真空腔室，真空腔室环绕套管12，且套管12的全部都位于真空腔室所环绕的空间内。可以理解，外管24为与套管12相近的结构，使外管24内部具有真空腔室，以起到隔热作用，从而外管24与套管12共同配合，以达到较好的隔热作用。在其他实施例中，还可以将套管12直接作为外管24来使用，此时加热体13与收容空间11均仍然位于套管12所围成的收容腔125内。
具体地，气溶胶生成装置10包括安装于外管24内部的电源组件25，电源组件25与加热体13连接以为加热体13供电，进而使加热体13将电能转化为热量而加热雾化气溶胶生成基质20。
具体在本实施例中，外管24包括第一管241及与第一管241可拆卸连接的第二管242，第一管241与第二管242沿轴向配合连接，并共同围成容置各功能部件的空间。具体地，电源组件25安装于第二管242内。加热体13、套管12、收容空间11在轴向上更多的位于第一管241内。
结合图1、图5至图7所示，具体地，在第一固定件15与第二固定件16一体成型时，第一固定件15远离第二固定件16的一端被夹紧于第一管241与第二管242之间，从而将第一固定件15沿径向及轴向均稳定地锁定于外管24内部，进而使第一固定件15在径向构成对套管12的固定，间接使第二固定件16在轴向上构成对套管12的固定。
具体地，气溶胶生成装置10包括支撑座26，支撑座26固定于第二管242内部。第三固定件17抵于支撑座26上，支撑座26为第三固定件17提供沿轴向的支撑作用。具体地，第二基座22放置于支撑座26上，支撑座26通过支撑第二基座22，以间接支撑第三固定件17，从而在轴向上构成对套管12的固定。进一步地，第一固定件15与支撑座26连接，支撑座26也能够对第一固定件15与第二固定件16所构成的整体在竖直方向上起到支撑的作用。
结合图1、图6、图7及图10所示，具体地，提取器23位于套管12之外的部分固定连接于外管24上。外管24上对应收容空间11的位置开设有供气溶胶生成基质20伸入至收容空间11的通口243，提取器23上开设有与通口243相连通的通槽234，通槽234沿轴向延伸，并同时与套管12与提取器23之间的间隙连通，从而使外界气流能够从通口243进入通槽234及套管12与提取器23之间的间隙。
结合图5至图7所示，具体地，套管12的最外围涂覆气凝胶所形成的隔热层14沿轴向延伸，第二基座22的随第三固定件17折弯的部分在径向上超出第三固定件17并抵于隔热层14上以实现密封，从而在收容腔125的一端阻断收容腔125与第二管242内部空间的连通。第一固定件15在与第一管241及第二管242的连接处实现密封，从而使第一固定件15与第二固定件16所构成的整体朝向第一管241的一侧与第二管242之间隔断，使该整体与第一管241之间的间隙仅连通至套管12内的收容腔125，如此即可避免收容 腔125内灰尘、流体等进入第二管242内而对电源组件25造成不良影响。
本申请的气溶胶生成装置10中，通过阻断整个加热体13所产生的热量沿径向的传导，以使加热体13产生的大量热量将集中于收容空间11内以加热气溶胶生成基质20，从而实现热量的有效利用，能量利用率提高8％以上。同时，也有助于减少沿径向被传导至气溶胶生成装置10外周的热量，从而有助于降低气溶胶生成装置10外周的温度，避免气溶胶生成装置10外周的温度过高而影响用户体验，本申请的设计方案可以使外周的温度降低5℃以上。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (15)

  1. 一种气溶胶生成装置，其特征在于，所述气溶胶生成装置具有收容气溶胶生成基质的收容空间；所述气溶胶生成装置还包括：
    加热体，至少部分所述加热体伸入至所述收容空间内，以能够对气溶胶生成基质进行加热；及
    套管，所述套管包括第一管体和第二管体，所述第一管体和所述第二管体在两端处封闭，以形成环绕于所述收容空间外部的真空空间，所述真空空间的长度大于所述加热体的长度。
  2. 根据权利要求1所述的气溶胶生成装置，其特征在于，所述套管还包括第三管体，所述第一管体、所述第二管体分别与所述第三管体在两端处封闭形成环绕所述收容空间外部的多层的真空空间。
  3. 根据权利要求2所述的气溶胶生成装置，其特征在于，所述第一管体、所述第二管体和所述第三管体背离所述加热体的一侧均覆盖有隔热层。
  4. 根据权利要求1所述的气溶胶生成装置，其特征在于，所述第一管体与所述第二管体的壁厚小于0.2mm。
  5. 根据权利要求1所述的气溶胶生成装置，其特征在于，所述气溶胶生成装置还包括用于固定所述套管的第一固定件，所述第一固定件抵持于所述套管的背离所述加热体的一侧、且对应有所述真空空间的区域。
  6. 根据权利要求5所述的气溶胶生成装置，其特征在于，所述第一固定件作用于所述套管上对应所述真空空间的中间位置。
  7. 根据权利要求5所述的气溶胶生成装置，其特征在于，所述第一固定件与所述套管之间通过隔热件间接接触。
  8. 根据权利要求5所述的气溶胶生成装置，其特征在于，所述第一固定件沿轴向的两端与所述套管沿轴向的两端之间均存在间隙。
  9. 根据权利要求1所述的气溶胶生成装置，其特征在于，所述气溶胶生成装置还包括第二固定件及第三固定件，所述第二固定件与第三固定件分别从所述套管的两端固定所述套管。
  10. 根据权利要求9所述的气溶胶生成装置，其特征在于，所述气溶胶生成装置还包括支撑架，所述加热体安装于所述支撑架上；所述第三固定件为多个，多个所述第三固定件间隔连接于所述支撑架上，且共同作用于所述套管的同一端面。
  11. 根据权利要求1所述的气溶胶生成装置，其特征在于，所述气溶胶生成装置还包括提取器，所述提取器围成所述收容空间，至少部分所述提取器容置于所述套管内部；所述套管与所述提取器间隔设置。
  12. 根据权利要求11所述的气溶胶生成装置，其特征在于，所述提取器上开设有贯通孔，所述加热体经由所述贯通孔延伸至所述收容空间内，且所述加热体与所述贯通孔的内壁之间存在间隙。
  13. 根据权利要求11所述的气溶胶生成装置，其特征在于，所述气溶胶生成装置包括支撑架，所述加热体安装于所述支撑架上；所述支撑架与所述提取器间隔设置。
  14. 根据权利要求1所述的气溶胶生成装置，其特征在于，所述气溶胶生成装置包括外管，所述加热体及所述套管均收容于所述外管内部。
  15. 根据权利要求14所述的气溶胶生成装置，其特征在于，所述外管包括两个嵌套的管子，两个所述管子在边缘处连接，并在两个所述管子之间形成环绕所述套管的真空腔室。
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