CN216568394U - Heating element and aerosol generating device - Google Patents
Heating element and aerosol generating device Download PDFInfo
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- CN216568394U CN216568394U CN202122761607.XU CN202122761607U CN216568394U CN 216568394 U CN216568394 U CN 216568394U CN 202122761607 U CN202122761607 U CN 202122761607U CN 216568394 U CN216568394 U CN 216568394U
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Abstract
The utility model relates to a heating component and an aerosol generating device. The heating component comprises a bracket, a magnetic induction coil and a cylindrical heating body, and the bracket is provided with a containing cavity; the magnetic induction coil is wound outside the bracket and used for generating an alternating magnetic field in the accommodating cavity; the cylindrical heating body is arranged in the accommodating cavity, the inner cavity of the cylindrical heating body is used for accommodating the aerosol-forming substrate, and the cylindrical heating body heats the aerosol-forming substrate under the action of the alternating magnetic field; a gap is arranged between the outer wall of the cylindrical heating body and the inner wall of the containing cavity to form an annular heat insulation space. According to the heating assembly, the annular heat insulation space is formed between the cylindrical heating body and the support, so that the heat conduction of the cylindrical heating body is reduced by utilizing the heat insulation space, the heat loss is reduced, the energy-saving and electricity-saving effects are achieved, and the endurance time of the aerosol generating device is prolonged.
Description
Technical Field
The utility model belongs to the technical field of electronic atomization, and particularly relates to a heating component and an aerosol generating device.
Background
At present, a plurality of heating non-combustion appliances (namely aerosol generating devices) heated by electromagnetic induction exist in the market, alternating current with certain frequency is passed through a magnetic induction coil to generate an alternating magnetic field, the alternating current generates alternating current, namely eddy current, in a ferromagnetic heating element, and the eddy current flows in the ferromagnetic heating element to generate heat, so that the contacted aerosol forming substrate is heated and atomized. The ferromagnetic heating element has a central needle-like heating element, a central sheet-like heating element, a peripheral cylindrical heating element, and the like.
In the working process of the aerosol generating device, the heating body works at about 200 degrees, the circuit can also generate heat, and the common problem of the aerosol generating device is how to avoid the heat generated by the heating body to be transmitted to the shell. In the structure using the circumferential cylindrical heating element, the heat insulation method is generally to arrange a heat insulation part made of a heat insulation material on the outer circumferential surface of the cylindrical heating element, and then wind a magnetic induction coil outside the heat insulation part, or to coat a vacuum tube around the whole body consisting of the cylindrical heating element and the magnetic induction coil or to insulate heat by using a heat insulation element made of a heat insulation material, but these methods all result in a large overall structure size and high cost of the aerosol generating device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art at least to a certain extent and provides a heating component and an aerosol generating device.
To achieve the above object, the present invention provides a heat generating component comprising:
the bracket is provided with a containing cavity;
the magnetic induction coil is wound outside the support and used for generating an alternating magnetic field in the accommodating cavity;
the cylindrical heating body is arranged in the accommodating cavity, an inner cavity of the cylindrical heating body is used for accommodating an aerosol-forming substrate, and the cylindrical heating body heats the aerosol-forming substrate under the action of the alternating magnetic field; a gap is formed between the outer wall of the cylindrical heating body and the inner wall of the accommodating cavity, so that an annular heat insulation space is formed.
Optionally, the bracket comprises an upper sleeve and a lower sleeve, the inner cavity of the upper sleeve comprises an insertion hole and a heat insulation hole which are communicated up and down, and a first limit step is defined between the insertion hole and the heat insulation hole; the inner cavity of the lower sleeve comprises a sleeve hole and an air inlet hole which are communicated up and down, and a second limiting step is limited between the sleeve hole and the air inlet hole; the lower sleeve is sleeved at the lower end of the upper sleeve through the sleeving hole, so that the upper end and the lower end of the cylindrical heating body are respectively abutted against the first limiting step and the second limiting step, and the heat insulation space is formed between the outer wall of the cylindrical heating body and the inner wall of the heat insulation hole.
Optionally, the inner cavity of the upper sleeve further comprises a first mounting hole communicated between the insertion hole and the heat insulation hole, and the first limiting step is formed between the insertion hole and the first mounting hole; the inner cavity of the lower sleeve further comprises a second mounting hole communicated between the sleeving hole and the air inlet hole, and a second limiting step is formed between the second mounting hole and the air inlet hole; the upper end of the cylindrical heating body is arranged in the first mounting hole and abuts against the first limiting step, and the lower end of the cylindrical heating body is arranged in the second mounting hole and abuts against the second limiting step.
Optionally, the first mounting hole and the second mounting hole have the same diameter and are adapted to the outer diameter of the cylindrical heating element.
Optionally, the first mounting hole and the cylindrical heating element, the second mounting hole and the cylindrical heating element, and the upper sleeve and the lower sleeve are respectively sealed, so that the heat insulation space forms a vacuum or non-vacuum sealed space.
Optionally, the first mounting hole and the second mounting hole have the same aperture and are larger than the outer diameter of the cylindrical heating element, a plurality of first clamping parts distributed in the circumferential direction are formed in the protruding inner wall of the first mounting hole, a plurality of second clamping parts distributed in the circumferential direction are formed in the protruding inner wall of the second mounting hole, the upper end of the cylindrical heating element is inserted into the first clamping parts to form a tight fit, and the lower end of the cylindrical heating element is inserted into the second clamping parts to form a tight fit.
Optionally, an annular stop bulge loop is convexly arranged on the outer wall of the upper end of the upper sleeve, and the magnetic induction coil is wound outside the upper sleeve and is located between the bottom surface of the stop bulge loop and the top surface of the lower sleeve.
Optionally, the heating element further comprises a tubular magnetic shield sleeved outside the magnetic induction coil.
Optionally, the heating assembly further comprises a soaking cylinder sleeved outside the magnetic induction coil, the upper end and the lower end of the soaking cylinder are respectively abutted and fixed on the bottom surface of the stop convex ring and the top surface of the lower sleeve, and the magnetic shielding sheet is attached to the inner wall of the soaking cylinder.
Optionally, the heating assembly further comprises a base and a needle-shaped heating element or a sheet-shaped heating element, the base is fixed in the air inlet hole in the lower sleeve, the upper end of the needle-shaped heating element or the sheet-shaped heating element extends into the inner cavity of the cylindrical heating element, the lower end of the needle-shaped heating element or the sheet-shaped heating element is fixed on the base, and an air vent penetrating through the base from top to bottom is formed in the base.
The utility model also provides an aerosol generating device which comprises the heating component.
According to the heating assembly, the annular heat insulation space is formed between the cylindrical heating body and the support, so that the heat conduction of the cylindrical heating body is reduced by utilizing the heat insulation space, the heat loss is reduced, the energy-saving and electricity-saving effects are achieved, and the endurance time of the aerosol generating device is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of an aerosol generating device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a heating element according to an embodiment of the present invention;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a schematic structural diagram of another embodiment of a heating element according to the present invention;
description of the main elements:
100. an aerosol generating device; 200. an aerosol-forming substrate;
10. a housing; 11. a body; 12. a top plate; 121. an insertion opening; 13. a base plate; 131. a second holding tube; 14. a plug; 141. an air intake passage;
20. a heat generating component; 21. a support; 211. an upper sleeve; 2111. an insertion hole; 2112. a first mounting hole; 2113. a heat insulation hole; A. a first limit step; 2114. a first retaining part; 2115. a stop convex ring; 2116. a rib; 212. a lower sleeve; 2121. sleeving a hole; 2122. a second mounting hole; 2123. an air inlet; B. a second limit step; 2124. a second chucking part; 213. a thermally insulating space; 22. a magnetic induction coil; 23. a cylindrical heating element; 24. a magnetic shield sheet; 25. a soaking cylinder;
30. a control circuit board; 40. a power supply;
50. a mounting frame; 51. a first holding tube; 52. a guide hole; 53. and positioning the step.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," "radial," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, an aerosol generating device 100 according to an embodiment of the present invention includes a housing 10, and a heat generating component 20, a control circuit board 30 and a power supply 40 disposed in the housing 10.
Wherein, casing 10 is fixed with mounting bracket 50 including being hollow structure and upper and lower both ends run through the body 11 of intercommunication and respectively fixed mounting in roof 12 and bottom plate 13 at body 11 upper and lower both ends in the inner chamber of body 11, heating element 20, the equal fixed mounting of control circuit board 30 and power supply 40 is in mounting bracket 50, and control circuit board 30 respectively with heating element 20 and power supply 40 electric connection for control power supply 40 supplies power for heating element 20.
The top plate 12 has an insertion opening 121, and the aerosol-forming substrate 200 can be inserted into the heat generating component 20 inside the housing 10 through the insertion opening 121; after the aerosol-forming substrate 200 is inserted into the heating element 20, the power supply 40 may be controlled by the control circuit board 30 to supply power to the heating element 20, so that the heating element 20 may bake and heat the inserted aerosol-forming substrate 200 to produce an aerosol for the user to inhale. In this embodiment, the aerosol-forming substrate 200 is a cylindrical aerosol-generating article made from tobacco cut filler, tobacco particles, plant pieces or tobacco smoke, and the like, and preferably the aerosol-forming substrate 200 is configured to be cylindrical, although in other embodiments, an elliptical or right prismatic shape may be used.
The heating element 20 provided by the embodiment of the present invention is described in detail below.
As shown in fig. 2 and fig. 3, the heating element 20 of the present embodiment includes a support 21, a magnetic induction coil 22, and a cylindrical heating element 23.
Wherein, the bracket 21 is provided with a containing cavity for installing the cylindrical heating element 23, and the containing space is opposite to the inserting port 121 on the shell 10; the magnetic induction coil 22 is wound outside the bracket 21 and used for generating an alternating magnetic field in the accommodating cavity; the cylindrical heating element 23 is made of ferromagnetic material and has a cylindrical structure with two open ends, and is arranged in the accommodating cavity, the inner cavity of the cylindrical heating element 23 is used for accommodating the aerosol-forming substrate 200, and the cylindrical heating element 23 heats the outside of the aerosol-forming substrate 200 under the action of the alternating magnetic field; a gap is formed between the outer wall of the cylindrical heating element 23 and the inner wall of the housing chamber to form an annular heat insulating space 213.
It should be noted that the upper end of the heat insulating space 213 is extended to a position adjacent to the top end of the cylindrical heat-generating body 23, and the lower end is extended to a position adjacent to the bottom end of the cylindrical heat-generating body 23, so as to minimize the direct contact of the cylindrical heat-generating body 23 with the holder 21; the heat insulation space 213 can be filled with air or heat insulation material or vacuumized, so that the heat conduction of the cylindrical heating element 23 is reduced by using the heat insulation space 213, the heat loss is reduced, the energy and electricity saving effects are achieved, and the endurance time of the aerosol generating device 100 is prolonged.
In one embodiment, the bracket 21 includes an upper sleeve 211 and a lower sleeve 212, and the upper sleeve 211 and the lower sleeve 212 may be made of a non-metal high temperature resistant insulating material, preferably a Polyetheretherketone (PEEK) material; the inner cavity of the upper sleeve 211 comprises an insertion hole 2111 and a heat insulation hole 2113 which are communicated up and down, and a first limit step A is defined between the insertion hole 2111 and the heat insulation hole 2113; the aperture of the insertion hole 2111 is the same as the inner diameter of the cylindrical heat-generating body 23 and is adapted to the outer diameter of the aerosol-forming substrate 200, so that the aerosol-forming substrate 200 can be inserted into the inner cavity of the cylindrical heat-generating body 23 and sufficiently contacted with the cylindrical heat-generating body 23 to ensure that the aerosol-forming substrate 200 is heated in time by the heat generated when the cylindrical heat-generating body 23 generates heat, and the aerosol-forming substrate 200 is fixed by friction.
The inner cavity of the lower sleeve 212 comprises a sleeve hole 2121 and an air inlet hole 2123 which are communicated up and down, and a second limiting step B is defined between the sleeve hole 2121 and the air inlet hole 2123; the lower sleeve 212 is sleeved at the lower end of the upper sleeve 211 through the sleeve hole 2121, so that the upper end and the lower end of the cylindrical heating element 23 are respectively abutted against the first limit step a and the second limit step B, and a heat insulation space 213 is formed between the outer wall of the cylindrical heating element 23 and the inner wall of the heat insulation hole 2113. It is to be understood that the outer peripheral wall of the cylindrical heat-generating body 23 and/or the inner peripheral wall of the heat insulating hole 2113 may be provided with a plurality of projecting structures spaced from each other, by which the cylindrical heat-generating body 23 is positioned at the center position of the heat insulating hole 2113, thereby forming a heat insulating space between the outer wall of the cylindrical heat-generating body 23 and the inner wall of the heat insulating hole 2113.
In this embodiment, the inner cavity of the upper sleeve 211 further includes a first mounting hole 2112 communicating between the insertion hole 2111 and the heat insulation hole 2113, and a first limit step a is formed between the insertion hole 2111 and the first mounting hole 2113 and faces downward; the inner cavity of the lower sleeve 212 further comprises a second mounting hole 2122 communicated between the sleeving hole 2121 and the air inlet hole 2123, and a second limiting step B is formed between the second mounting hole 2122 and the air inlet hole 2123 and faces upwards; after the upper sleeve 211 and the lower sleeve 212 are sleeved with each other, the upper end of the cylindrical heating element 23 is installed in the first installation hole 2112 and abuts against the first limit step a, and the lower end of the cylindrical heating element 23 is installed in the second installation hole 2122 and abuts against the second limit step B, so that the cylindrical heating element 23 is clamped and fixed by the upper sleeve 211 and the lower sleeve 212 to form a whole, and the structure is simple in the manner, convenient and fast to assemble, and beneficial for the subsequent heating element 20 to be installed in the housing 10.
Correspondingly, a first abutting pipe 51 is formed on the mounting frame 50 in a protruding manner towards the direction of the bottom plate 13, the lower end of the first abutting pipe 51 abuts against the top end of the upper sleeve 211, and a guide hole 52 communicated with the insertion hole 121 and the insertion hole 2111 is formed in the first abutting pipe; the bottom plate 13 is protruded towards the top plate 12 to form a second abutting pipe 131, the upper end of the second abutting pipe 131 abuts against the bottom end of the lower sleeve 212, a plug 14 is detachably mounted in the second abutting pipe 131, an air inlet passage 141 penetrating through two ends of the plug 14 is formed in the plug 14, and the air inlet passage 141 is respectively communicated with an air inlet 2123 of the lower sleeve 212 and the outside of the housing 10. When a user draws against the outer end of the aerosol-forming substrate 200, air from outside the housing 10 enters the interior of the aerosol-forming substrate 200 through the air inlet passage 141 from the air inlet holes 2123 and is mixed with the generated aerosol and is then inhaled by the user from the outer end of the aerosol-forming substrate 200.
Further, the first mounting hole 2112 and the second mounting hole 2122 have the same diameter and are adapted to the outer diameter of the cylindrical heating element 23, and both ends of the cylindrical heating element 23 are respectively inserted into the first mounting hole 2112 and the second mounting hole 2122. In this embodiment, the heat insulation space 213 is filled with air, the thermal conductivity of the air is 0.026W/(m · K), and the thermal conductivity of the air is extremely low, so that the heat insulation effect can be achieved, the heat generated by the cylindrical heating element 23 is greatly reduced from being transferred to the control circuit board 30, the power supply 40 and the housing 10, and the safety, reliability and comfort of the aerosol generating device 100 in the operating state are ensured. Of course, a heat insulating material such as aerogel or heat insulating cotton may be filled in the heat insulating space 213.
Further, the first mounting hole 2112 and the cylindrical heating element 23, the second mounting hole 2122 and the cylindrical heating element 23, and the upper sleeve 211 and the lower sleeve 212 are respectively sealed, and the connection between the three may be sealed by pouring a sealant, providing a sealing ring, or the like, but not limited thereto, and the heat insulating space 213 is a vacuum or non-vacuum sealed space, wherein the heat insulating space 213 is vacuumed by a vacuum pumping method. In a non-vacuum state, the air in the sealed heat insulation space 213 cannot be conducted outwards in a convection mode, so that the heat insulation effect is further improved; in the vacuum state, the thermal conductivity in the heat insulating space 213 is close to 0, and the heat insulating effect of the heat insulating space 213 on the cylindrical heating element 23 is greatly improved.
In one embodiment, as shown in fig. 4, the first mounting hole 2112 and the second mounting hole 2122 have the same diameter and are larger than the outer diameter of the cylindrical heat-generating body 23, the inner wall of the first mounting hole 2112 is protruded to form a plurality of circumferentially distributed first catches 2114, the inner wall of the second mounting hole 2122 is protruded to form a plurality of circumferentially distributed second catches 2124, the upper end of the cylindrical heat-generating body 23 is inserted between the plurality of first catches 2114 to form a tight fit, and the lower end is inserted between the plurality of second catches 2124 to form a tight fit. The aperture of the first mounting hole 2112 may be smaller than that of the heat insulation hole 2113, or the aperture of the first mounting hole 2112 may be the same as that of the heat insulation hole 2113, that is, the heat insulation hole 2113 is directly connected to the insertion hole 2111 (the first mounting hole 2112 is omitted here), and the second retaining portion 2124 is protruded on the inner wall of the upper end of the heat insulation hole 2113; in the present embodiment, the heat insulating space 213 formed between the cylindrical heating element 23 and the heat insulating hole 2113 may be filled with a heat insulating material such as air, aerogel, or heat insulating cotton.
In one embodiment, an annular stop ring 2115 is protruded from the outer wall of the upper end of the upper sleeve 211, and the magnetic induction coil 22 is wound around the outer wall of the upper sleeve 211 and located between the bottom surface of the stop ring 2115 and the top surface of the lower sleeve 212, wherein the stop ring 2115 may be in a continuous or discontinuous structure. So that the position of the magnetic induction coil 22 can be restricted by the cooperation of the stopper collar 2115 and the sleeve to position the magnetic induction coil 22 at the middle position of the cylindrical heating body 23. In addition, the mounting bracket 50 is further provided with a positioning step 53 facing the direction of the bottom plate 13 at a position below the guide hole 52, when the heating element 20 is mounted, the heating element is mounted from the lower end opening of the body 11 until the stop protruding ring 2115 abuts against the positioning step 53, and then the bottom plate 13 is mounted on the lower end opening of the body 11 in a sealing manner, so that the entire heating element 20 is clamped and fixed between the mounting bracket 50 and the bottom plate 13.
In one embodiment, the heating assembly 20 further includes a magnetic shielding sheet 24 which is tubular and is sleeved outside the magnetic induction coil 22, and when the magnetic induction coil 22 is energized to generate an alternating magnetic field in the accommodating cavity, the magnetic shielding sheet 24 is used to prevent electromagnetic waves from radiating to the direction of the control circuit board 30 and the power supply 40, so as to prevent the alternating magnetic field generated by the magnetic induction coil 22 from affecting other electronic components in the housing 10.
Furthermore, the heating assembly 20 further comprises a soaking cylinder 25 sleeved outside the magnetic induction coil 22, the upper end and the lower end of the soaking cylinder 25 are respectively abutted and fixed on the bottom surface of the stop convex ring 2115 and the top surface of the lower sleeve 212, and the magnetism isolating sheet 24 is attached to the inner wall of the soaking cylinder 25, so that the magnetism isolating sheet 24 is just positioned outside the magnetic induction coil 22, has a gap with the magnetic induction coil 22, and plays a role in dissipating heat of the magnetism isolating sheet 24; specifically, a plurality of convex ribs 2116 are uniformly distributed on the upper sleeve 211 below the stop convex ring 2115 along the circumference, the upper end of the soaking cylinder 25 is sleeved on the outer wall of the convex ribs 2116, and the lower end of the soaking cylinder 25 is abutted against the top wall of the lower sleeve 212, so that the soaking cylinder 25 is fixedly sleeved outside the support 21.
In one embodiment, the heating element assembly 20 further includes a base (not shown) fixed in the air inlet 2123 in the lower sleeve 212, and a needle-like or sheet-like heating element (not shown) having an upper end extending into the inner cavity of the cylindrical heating element 23 and a lower end fixed to the base, and having a vent hole penetrating vertically therein. When the aerosol-forming substrate 200 is inserted into the cylindrical heating element 23, the outer surface of the aerosol-forming substance is in contact with the inner wall of the cylindrical heating element 23, and at the same time, the sheet-like heating element or the needle-like heating element is inserted into the aerosol-forming substrate 200, so that the outside of the aerosol-forming substrate 200 can be heated by the cylindrical heating element 23, and the inside of the aerosol-forming substrate 200 can be heated by the sheet-like heating element or the needle-like heating element; in this way, in the present embodiment, the tubular heating element 23 and the sheet-like heating element or the needle-like heating element are used to heat the inside and outside of the aerosol-forming substrate 200 at the same time, so that the aerosol-forming substrate 200 can be uniformly heated, and the taste of the generated aerosol to be sucked can be improved.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In view of the above description of the technical solutions provided by the present invention, those skilled in the art will recognize that there may be variations in the technical solutions and the application ranges according to the concepts of the embodiments of the present invention, and in summary, the content of the present specification should not be construed as limiting the present invention.
Claims (11)
1. A heat generating component, comprising:
the bracket is provided with a containing cavity;
the magnetic induction coil is wound outside the support and used for generating an alternating magnetic field in the accommodating cavity;
the cylindrical heating body is arranged in the accommodating cavity, an inner cavity of the cylindrical heating body is used for accommodating an aerosol-forming substrate, and the cylindrical heating body heats the aerosol-forming substrate under the action of the alternating magnetic field; a gap is formed between the outer wall of the cylindrical heating body and the inner wall of the accommodating cavity, so that an annular heat insulation space is formed.
2. The heating assembly as claimed in claim 1, wherein the bracket comprises an upper sleeve and a lower sleeve, the inner cavity of the upper sleeve comprises an insertion hole and a heat insulation hole which are communicated up and down, and a first limit step is defined between the insertion hole and the heat insulation hole; the inner cavity of the lower sleeve comprises a sleeve hole and an air inlet hole which are communicated up and down, and a second limiting step is limited between the sleeve hole and the air inlet hole; the lower sleeve is sleeved at the lower end of the upper sleeve through the sleeving hole, so that the upper end and the lower end of the cylindrical heating body are respectively abutted against the first limiting step and the second limiting step, and the heat insulation space is formed between the outer wall of the cylindrical heating body and the inner wall of the heat insulation hole.
3. The heating element as claimed in claim 2, wherein the inner cavity of the upper sleeve further comprises a first mounting hole communicating between the insertion hole and the insulation hole, and the first limit step is formed between the insertion hole and the first mounting hole; the inner cavity of the lower sleeve further comprises a second mounting hole communicated between the sleeving hole and the air inlet hole, and a second limiting step is formed between the second mounting hole and the air inlet hole; the upper end of the cylindrical heating body is arranged in the first mounting hole and abuts against the first limiting step, and the lower end of the cylindrical heating body is arranged in the second mounting hole and abuts against the second limiting step.
4. The heat generating component as claimed in claim 3, wherein the first mounting hole and the second mounting hole have the same diameter and are adapted to the outer diameter of the cylindrical heat generating body.
5. The heat generating component as claimed in claim 4, wherein the first mounting hole and the cylindrical heat generating body, the second mounting hole and the cylindrical heat generating body, and the upper sleeve and the lower sleeve are hermetically sealed to form a vacuum or non-vacuum sealed space in the heat insulating space.
6. The heating element as claimed in claim 3, wherein the first and second mounting holes have the same diameter and are larger than the outer diameter of the cylindrical heating element, the inner wall of the first mounting hole is protruded to form a plurality of first retainers circumferentially distributed, the inner wall of the second mounting hole is protruded to form a plurality of second retainers circumferentially distributed, the upper end of the cylindrical heating element is inserted into the first retainers to form a tight fit, and the lower end of the cylindrical heating element is inserted into the second retainers to form a tight fit.
7. The heating assembly as claimed in any one of claims 2 to 6, wherein an annular stop collar is protruded from an outer wall of an upper end of the upper sleeve, and the magnetic induction coil is wound around the outer wall of the upper sleeve and located between a bottom surface of the stop collar and a top surface of the lower sleeve.
8. The heating element as claimed in claim 7, further comprising a magnetic shielding sheet in a tubular shape and disposed outside the magnetic induction coil.
9. The heating assembly of claim 8, further comprising a soaking cylinder sleeved outside the magnetic induction coil, wherein the upper end and the lower end of the soaking cylinder are respectively abutted and fixed to the bottom surface of the stop convex ring and the top surface of the lower sleeve, and the magnetic shielding sheet is attached to the inner wall of the soaking cylinder.
10. The heating assembly as claimed in claim 2, further comprising a base and a needle-shaped or sheet-shaped heating element, wherein the base is fixed in the air inlet hole in the lower sleeve, the upper end of the needle-shaped or sheet-shaped heating element extends into the inner cavity of the cylindrical heating element, the lower end of the needle-shaped or sheet-shaped heating element is fixed on the base, and the base is provided with an air vent penetrating up and down.
11. An aerosol generating device comprising a heat generating component as claimed in any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122761607.XU CN216568394U (en) | 2021-11-10 | 2021-11-10 | Heating element and aerosol generating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122761607.XU CN216568394U (en) | 2021-11-10 | 2021-11-10 | Heating element and aerosol generating device |
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| CN216568394U true CN216568394U (en) | 2022-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024051260A1 (en) * | 2022-09-08 | 2024-03-14 | 深圳麦时科技有限公司 | Aerosol generating device and fixing assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024051260A1 (en) * | 2022-09-08 | 2024-03-14 | 深圳麦时科技有限公司 | Aerosol generating device and fixing assembly |
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