Aerosol generating device and heater for aerosol generating device
By combining a tubular substrate and heating elements, the aerosol is heated using resistance or infrared heating to generate products, solving the problems of low heating efficiency and complex structure of existing devices, and realizing a highly efficient and simplified electrical connection structure.
Patent Information
- Application Number
- CN202410926655.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2026-01-13
AI Technical Summary
Existing heated non-combustible aerosol generating devices suffer from low heating efficiency, complex structure, and numerous fastening components when heating aerosols to generate products.
The product is generated by heating aerosol through resistance or infrared heating using a tubular substrate and heating elements. The combination of conductive electrodes and electrical contact elements simplifies the electrical connection structure and reduces the number of radial fastening components.
It improves heating efficiency, simplifies electrical connection structure, and reduces the radial dimension and fastening complexity of the device.
Smart Images
Figure CN121312894A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of heating-not-burning aerosol generation, and in particular to an aerosol generating device and a heater for use in an aerosol generating device. BACKGROUND
[0002] Tobacco products, such as cigarettes, cigars, and the like, burn tobacco during use to produce tobacco smoke. Attempts have been made to provide alternatives to these burning tobacco products by creating products that release compounds without burning.
[0003] Examples of such products are heating devices that release compounds by heating, rather than burning, a material. For example, the material can be an aerosol-generating article of tobacco or other non-tobacco products, which can or can not contain nicotine. Known heating devices, in order to heat the aerosol-generating article to a temperature at which volatile components capable of forming an aerosol are released, typically surround the aerosol-generating article with a tubular substrate, and form or arrange an electrically resistive or infrared heating coating outside the tubular substrate to heat the aerosol-generating article within the tubular substrate by electrically resistive Joule heating or infrared radiation to generate an aerosol. SUMMARY
[0004] One embodiment of the present application provides an aerosol generating device configured to heat an aerosol-generating article to generate an aerosol; comprising:
[0005] a chamber having an open mouth; the aerosol-generating article being receivable into or removable from the chamber through the open mouth;
[0006] a tubular base having a first end facing the open mouth and a second end facing away from the first end; the base comprising a side wall extending from the first end to the second end, and an end wall at the second end; the side wall at least partially surrounding or delimiting the chamber; the end wall defining a longitudinal length of the chamber and configured to abut the aerosol-generating article received in the chamber to form a stop;
[0007] a heating element formed on or integrated with the side wall of the base for heating the aerosol-generating article received in the chamber;
[0008] an electrode element for directing an electric current on the heating element; the electrode element comprising a main portion integrated with the heating element, and an electrically connecting region extending from the main portion to the end wall.
[0009] In some embodiments, the electrode element directs the electric current on the heating element through the main portion and is connected to a circuit board at least through the electrically connecting region.
[0010] In some embodiments, further comprising:
[0011] an electrical core for supplying power;
[0012] a circuit board in electrically conductive connection with the electrode element and configured to supply power from the electrical core to the heating element;
[0013] the electrode element is in electrically conductive connection with the circuit board at least through the electrical connection area.
[0014] In some embodiments, the electrode element is further in electrically conductive connection with the circuit board through the body portion.
[0015] In some embodiments, the body portion is arranged in a longitudinal extension along the base body and across the heating element.
[0016] In some embodiments, the electrical connection area has a width dimension greater than a width dimension of the body portion.
[0017] In some embodiments, the end wall has a chamfered portion in connection with the side wall, such that the end wall and the side wall are smoothly joined.
[0018] In some embodiments, further comprising:
[0019] an electrically conductive electrical contact element providing electrically conductive connection at least partially between the electrical connection area and the circuit board.
[0020] In some embodiments, further comprising:
[0021] a tubular holding element for accommodating and holding the base body and the electrical contact element; and the electrical contact element at least partially extends from inside the holding element to outside the holding element.
[0022] In some embodiments, the electrical contact element comprises a first contact portion and a second contact portion arranged opposite to each other in a longitudinal direction, and a third contact portion between the first contact portion and the second contact portion; the third contact portion is arranged substantially perpendicular to the longitudinal extension of the electrical contact element.
[0023] the first contact portion abuts against the body portion from outside of the body portion, the second contact portion at least partially extends from inside the holding element to outside the holding element, and the third contact portion abuts against the electrical connection area.
[0024] In some embodiments, the third contact portion is in a meandering shape, such that the third contact portion is elastic; the third contact portion is clamped between the end wall of the base body and the holding element and is at least partially compressed.
[0025] In some embodiments, the third contact head includes at least a tortuous first segment and a second segment; the first segment abuts against the electrical connection region, and the second segment abuts against the retaining element;
[0026] The first segment and the second segment are arranged in a non-parallel manner; and / or, the first segment and the second segment have an included angle of 0.5 to 5°.
[0027] Another embodiment of this application also proposes an aerosol generating device, configured to heat an aerosol generating article to generate an aerosol; comprising:
[0028] A tubular substrate has a first end and a second end that are opposite to each other in the longitudinal direction; the first end is open, and an aerosol-generating article can be received in the substrate from the first end; the second end is provided with an end wall for the aerosol-generating article received in the substrate to abut against to form a stop.
[0029] A heating element, formed or incorporated into the substrate, is used to heat an aerosol-generated article received in the substrate;
[0030] Battery cells, used for power supply;
[0031] A circuit board is configured to supply power from the battery cell to the heating element;
[0032] A conductive electrical contact element provides at least a partial conductive connection between the heating element and the circuit board;
[0033] A cylindrical retaining element is provided for accommodating or retaining the substrate and the electrical contact element; the electrical contact element has a tortuous and bent portion; the tortuous and bent portion is clamped between the end wall of the substrate and the retaining element, and is at least partially elastically compressed.
[0034] Another embodiment of this application provides a heater for an aerosol generating device, comprising:
[0035] A matrix having a first end and a second end that are opposite each other in the longitudinal direction, the first end being open and the second end being closed; the matrix includes a tubular sidewall extending from the first end to the second end, and an end wall for closing the second end;
[0036] A heating element is formed or incorporated into the sidewall of the substrate;
[0037] An electrode element for guiding current on the heating element; the electrode element includes a body portion coupled to the heating element and an electrical connection region extending from the body portion to the end wall.
[0038] The above-mentioned aerosol generating device has an end wall on the substrate that defines the longitudinal length of the chamber, and an electrode element that has an electrical connection area on the side wall of the substrate that extends to the end wall. Attached Figure Description
[0039] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0040] Figure 1 This is a schematic diagram of an aerosol generating device provided in one embodiment;
[0041] Figure 2 yes Figure 1 A schematic diagram of the structure of one embodiment of the heating mechanism;
[0042] Figure 3 yes Figure 2 An exploded view of the heating mechanism from one perspective;
[0043] Figure 4 yes Figure 2 Another exploded view of the heating mechanism;
[0044] Figure 5 yes Figure 2 An exploded view of the heating mechanism from a cross-sectional perspective;
[0045] Figure 6 yes Figure 2 A cross-sectional schematic diagram of the heating mechanism from one perspective;
[0046] Figure 7 yes Figure 3 Another structural schematic diagram of the heater;
[0047] Figure 8 yes Figure 7 Another exploded view of the heater;
[0048] Figure 9 yes Figure 3 A structural schematic diagram of the first or second electrical contact element from another perspective;
[0049] Figure 10 yes Figure 3 A cross-sectional view of the retaining element from another perspective. Detailed Implementation
[0050] To facilitate understanding of this application, a more detailed description of this application will be provided below in conjunction with the accompanying drawings and specific embodiments.
[0051] One embodiment of this application provides an aerosol generating device 100 that heats, rather than burns, an aerosol generating article 100, such as a cigarette, to cause at least one component of the aerosol generating article 1000 to volatilize or release, forming an aerosol for inhalation. Figure 1 As shown.
[0052] In optional embodiments, the aerosol generating article 1000 preferably uses a tobacco-containing material that releases volatile compounds from the matrix upon heating; or it may be a non-tobacco material suitable for electrically heated smoking after heating. The aerosol generating article 1000 preferably uses a solid matrix, which may include one or more of the following: vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco, powder, granules, fragments, strips, or sheets; or the solid matrix may contain additional tobacco or non-tobacco volatile aroma compounds to be released when the matrix is heated.
[0053] according to Figures 1-2 As shown, when the aerosol generating product 1000 is received by the aerosol generating device 100, a portion of it, such as a filter tip, protrudes outside the aerosol generating device 100, which is advantageous for the user to inhale.
[0054] The structure of the aerosol generating device 100 according to one embodiment of this application can be found in [reference needed]. Figure 1 As shown, the overall shape of the device is generally elongated. The aerosol generating device 100 includes:
[0055] The chamber has an opening 40; in use, the aerosol-generating article 1000 can be removably received in the chamber through the opening 40.
[0056] The heating mechanism 30 includes a tubular heater 31; the heater 31 is arranged to at least partially surround or define a chamber; when the aerosol generating article 1000 is received in the chamber, the heater 31 surrounds and heats the aerosol generating article 1000 from the outside, thereby causing the aerosol generating article 1000 to release a variety of volatile compounds, which are formed only by heat treatment.
[0057] The battery cell 10 is used for power supply; more preferably, the battery cell 10 is a rechargeable DC battery cell 10, which can be charged by connecting to an external power source.
[0058] Circuit board 20, such as PCB board or FPC board, has circuitry arranged for guiding current between battery cell 10 and heater 31 of heating mechanism 30.
[0059] exist Figures 2-8In the illustrated embodiment, the heater 31 is arranged in a tubular shape, and at least a portion of the tubular hollow portion of the heater 31 forms or defines a chamber for receiving the aerosol generating article 1000. When the aerosol generating article 1000 is received in the chamber, the heater 31 at least partially surrounds or encloses the aerosol generating article 1000 and heats it from its outer periphery. Furthermore, when the aerosol generating article 1000 is received in the chamber, it is at least partially contained and held within the heater 31.
[0060] Figures 2-8 A schematic diagram of a heater 31 according to one embodiment is shown, in which the heater 31 includes:
[0061] A tubular substrate 310; in use, a chamber for receiving and retaining the aerosol-generating article 1000 is at least partially surrounded or defined by the sidewalls of the substrate 310; and,
[0062] A heating element 32 is formed or disposed on the sidewall of the substrate 310; in some embodiments, the heating element 32 is formed on the outer surface of the substrate 310 by deposition, spraying, printing or wrapping. Or in other embodiments, the heating element 32 is formed on the inner surface of the substrate 310.
[0063] In some embodiments, the circumferential length or perimeter of the substrate 310 is greater than the length of the substrate 310 in the longitudinal direction. In some embodiments, the longitudinal length of the substrate 310 is no more than 15 mm or less than 15 mm. In some embodiments, the substrate 310 may have a longitudinal length of approximately 10 mm to 15 mm and an inner diameter of approximately 5.8 mm to 10 mm. In some specific embodiments, the substrate 310 may have a longitudinal length of 12 mm; the substrate 310 may have an inner diameter of 7.6 mm.
[0064] In some embodiments, the heating element 32 is closed in the circumferential direction of the heater 31; the heating element 32 is a closed ring. In some embodiments, the length of the heating element 32 is 8 to 12 mm.
[0065] In some embodiments, the heating element 32 is a coating or thin layer formed on the substrate 310 by deposition, spraying, printing, etc. Or in other embodiments, the heating element 32 is a thin film wrapped or bonded to the substrate 310. Or in other optional embodiments, the resistive heating element 32 may also be a heating film of a resistor wound or bonded to the substrate 310, etc.
[0066] In some embodiments, the thickness of the heating element 32 in the form of a resistance coating is preferably controlled to be between 10 μm and 300 μm. In some embodiments, the heating element 32 is formed on the surface of the tubular substrate 310 by atmospheric plasma spraying followed by curing.
[0067] In some embodiments, the heating element 32 is a resistance heating element; by guiding current through the heating element 32, the heating element 32 can be heated by resistance Joule heating, thereby heating the aerosol generating article 1000. Furthermore, in some embodiments, the heating element 32 used for heating by generating resistance Joule heating may include graphite or a resistive metal or alloy; wherein the metal or alloy is, for example, a nickel-chromium alloy, a nickel-iron alloy, platinum, tungsten, silver, aluminum, titanium, molybdenum, manganese, or an alloy containing the like.
[0068] When applied to the heating element 32 that heats by resistance, the substrate 310 is made of a material with good thermal conductivity, such as ceramic, glass, or a surface-insulating metal or alloy, such as anodized aluminum, aluminum alloy, copper alloy, or stainless steel. In some embodiments, the thermal conductivity of the substrate 310 is at least 10 W / mK, preferably at least 100 W / mK; or in some embodiments, the thermal conductivity of the substrate 310 is greater than 200 W / mK or higher. In some embodiments, the substrate 310 includes metals suitable for high thermal conductivity, such as aluminum, copper, titanium, or alloys containing at least one of them. In some embodiments, the wall thickness of the substrate 310 is between 0.1 and 0.5 mm; more specifically, for example, the wall thickness of the substrate 310 is between 0.15 and 0.2 mm.
[0069] In some embodiments, the heating element 32 is an infrared emitting layer, such as an electro-induced infrared emitting layer; by providing a DC voltage to the heating element 32, the heating element 32 can be driven by voltage to radiate infrared rays, thereby heating the aerosol generating product 1000. When the heating element 32 used for heating by radiating infrared rays is applied, the substrate 310 is made of an infrared-transmitting material, such as quartz, glass, or ceramic. In some embodiments, the heating element 32 for radiating infrared rays can be a coating made of ceramic-based materials such as zirconium, Fe-Mn-Cu, tungsten-based materials, or transition metals and their oxides. For example, in some embodiments, the heating element 32 for radiating infrared rays is composed of oxides of at least one metal element such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, and Zn, which can radiate infrared rays with heating effect when heated to an appropriate heating temperature.
[0070] according to Figures 2-8 In the embodiment shown, the substrate 310 includes:
[0071] A first end 311 and a second end 312 are opposite to each other in the longitudinal direction; in an embodiment, the first end 311 and the second end 312 in the length direction of the substrate 310 respectively define the two ends of the heater 31; and the inner hollow of the substrate 310 at least defines the chamber for receiving the aerosol-generated article 1000; wherein the first end 311 is arranged closer to or towards the opening 40.
[0072] The heating element 32 is arranged to extend between the first end 311 and the second end 312. The heating element 32 is spaced apart from the first end 311 and the second end 312. Furthermore, the following are defined on the outer surface of the sidewall of the substrate 310:
[0073] The first interval region 313 is located between the first end 311 and the heating element 32;
[0074] The second interval region 314 is located between the heating element 32 and the second end 312.
[0075] In some embodiments, the first spacing region 313 and / or the second spacing region 314 have substantially the same dimensions along the longitudinal direction of the substrate 310. For example, in some alternative embodiments, the first spacing region 313 and / or the second spacing region 314 have a length of approximately 0.5 to 5 mm; more specifically, for example, the first spacing region 313 and / or the second spacing region 314 have a length of approximately 1.0 mm.
[0076] according to Figures 2-8 As shown, the tubular substrate 310 is open at its first end 311 and closed at its second end 312. The substrate 310 has an end wall 315 arranged longitudinally perpendicular to the substrate 310 at its second end 312, and the end wall 315 is connected to the sidewall of the substrate 310. Furthermore, the chamber is closed on the side opposite to the opening 40; specifically, the chamber on the side opposite to the opening 40 is closed by the end wall 315 of the substrate 310; when the aerosol generating article 1000 is received within the heater 31, the aerosol generating article 1000 abuts against the end wall 315 of the substrate 310 to provide a stop.
[0077] In some embodiments, the inner surface of the end wall 315 facing the chamber has protrusions for the aerosol generating article 1000 to abut against; when the aerosol generating article 1000 abuts against the protrusions on the inner surface of the end wall 315 to form a stop, a gap is formed between the aerosol generating article 1000 and the inner surface of the end wall 315. The gap between the aerosol generating article 1000 and the inner surface of the end wall 315 receives and retains debris or aerosol condensate that falls from the aerosol generating article 1000.
[0078] In some embodiments, the end wall 315 has a chamfered portion 316 that connects to the side wall of the base 310, thereby creating a rounded / smooth transition between the side wall of the base 310 and the end wall 315. The height of the chamfered portion 316 is approximately 0.2 mm.
[0079] according to Figures 2-8 In the embodiment shown, heater 31 further includes:
[0080] First electrode element 331 and second electrode element 332 are arranged at intervals on heating element 32 to guide current in heating element 32. Specifically, first electrode element 331 and second electrode element 332 are circumferentially spaced together with heating element 32 to guide current in the circumferential direction of heating element 32. In some embodiments, first electrode element 331 and / or second electrode element 332 are coatings formed of low-resistivity electrode material. Alternatively, in some variations, first electrode element 331 and / or second electrode element 332 may be replaced with thinner sheet electrodes formed on heater 31 by welding or bonding. In some optional embodiments, first electrode element 331 and / or second electrode element 332 are made of low-resistivity gold, silver, copper, or alloys thereof.
[0081] Specifically according to Figure 7 and Figure 8 As shown, the first electrode element 331 includes a first main body portion 3311 extending longitudinally and attached to the sidewall of the substrate 310, and a first electrical connection region 3312 extending from the first main body portion 3311 to the end wall 315; the second electrode element 332 includes a second main body portion 3321 extending longitudinally and attached to the sidewall of the substrate 310, and a second electrical connection region 3322 extending from the second main body portion 3321 to the end wall 315. The first main body portion 3311 of the first electrode element 331 and the second main body portion 3321 of the second electrode element 332 are opposite to each other in the radial direction of the heater 31.
[0082] In a specific arrangement, the first main body portion 3311 of the first electrode element 331 and / or the second main body portion 3321 of the second electrode element 332 are arranged to extend longitudinally along the heater 31. The first main body portion 3311 of the first electrode element 331 and / or the second main body portion 3321 of the second electrode element 332 are arranged to extend from the first spacing region 313 to the end wall 315; the first main body portion 3311 of the first electrode element 331 and / or the second main body portion 3321 of the second electrode element 332 cross the heating element 32 and the second spacing region 314 longitudinally along the heater 31.
[0083] according to Figure 7 and Figure 8As shown, the first electrical connection region 3312 of the first electrode element 331 extends to or is located on the end wall 315, and the second electrical connection region 3322 of the second electrode element 332 extends to or is located on the end wall 315. After assembly, the first electrical connection region 3312 and the second electrical connection region 3322 are electrically connected to the circuit board 20, thereby connecting the first electrode element 331 and the second electrode element 332 to the circuit.
[0084] In the above embodiments, by having the first electrode element 331 and the second electrode element 332 form or define an electrical connection area on the end wall 315 and connect it to the circuit, compared to the conventional method of connecting the conductive element to the circuit by abutting it on the radially outer side and then needing to wrap and fasten the conductive element so that it can be securely abutted and connected, it is advantageous to reduce the associated fastening components and radial dimensions on the radially outer side.
[0085] exist Figure 7 and Figure 8 As shown, the first electrical connection region 3312 is arranged perpendicular to the first main body portion 3311 of the first electrode element 331; and the width W2 of the first electrical connection region 3312 is greater than the width W1 of the first main body portion 3311. The second electrical connection region 3322 is arranged perpendicular to the second main body portion 3321 of the second electrode element 332; and the width W2 of the second electrical connection region 3322 is greater than the width W1 of the second main body portion 3321.
[0086] exist Figures 2-8 As shown, the heating mechanism 30 also includes:
[0087] First electrical contact element 341 for connecting first electrode element 331 to circuit board 20;
[0088] The second electrical contact element 342 is used to connect the second electrode element 332 to the circuit board 20.
[0089] The first electrical contact element 341 and / or the second electrical contact element 342 are made of a metal or alloy with excellent electrical conductivity; for example, the first electrical contact element 341 and / or the second electrical contact element 342 are made of gold, silver, copper, or alloys thereof. In some embodiments, the first electrical contact element 341 and / or the second electrical contact element 342 are made of a beryllium copper alloy with alloy grade C17200.
[0090] Specifically, the first electrical contact element 341 is electrically conductive by elastically abutting against the first electrode element 331, and then connected to the circuit board 20 by means of soldering conductive leads, thereby connecting the first electrode element 331 to the circuit. Similarly, the second electrical contact element 342 is electrically conductive by elastically abutting against the second electrode element 332, and then connected to the circuit board 20 by means of soldering conductive leads, thereby connecting the second electrode element 332 to the circuit.
[0091] according to Figure 9 As shown, the first electrical contact element 341 and / or the second electrical contact element 342 are arranged to be formed by continuously bending a conductive sheet. In some embodiments, the thickness of the sheet is approximately between 0.05 and 0.5 mm. In some embodiments, the width of the sheet is approximately between 0.2 and 5.0 mm.
[0092] Specifically according to Figure 9 As shown, the first electrical contact element 341 and / or the second electrical contact element 342 include:
[0093] A first contact head 3411 and a second contact head 3413 are arranged opposite each other in the longitudinal direction, and a third contact head 3412 is located between the first contact head 3411 and the second contact head 3413. The first contact head 3411 and the second contact head 3413 extend in the longitudinal direction of the first electrical contact element 341 and / or the second electrical contact element 342; the third contact head 3412 extends substantially perpendicular to the longitudinal direction of the first electrical contact element 341 and / or the second electrical contact element 342.
[0094] according to Figure 9 As shown, the third contact head 3412 has a meandering and bent shape. Specifically in Figure 9 As shown, the detour-bent third contact head 3412 has an approximately U-shaped shape. Alternatively, in some embodiments, the detour-bent third contact head 3412 has an approximately S-shaped shape, etc.
[0095] After assembly, the first contact head 3411 of the first electrical contact element 341 abuts against the first main body portion 3311 of the first electrode element 331 from the outside, and the third contact head 3412 abuts against the first electrical connection area 3312 of the first electrode element 331, thereby making the first electrical contact element 341 conductive with the first electrode element 331. After assembly, the first contact head 3411 of the second electrical contact element 342 abuts against the second main body portion 3321 of the second electrode element 332 from the outside, and the third contact head 3412 abuts against the second electrical connection area 3322 of the second electrode element 332, thereby making the second electrical contact element 342 conductive with the second electrode element 332.
[0096] according to Figure 9 As shown, the first contact 3411 is at least partially curved or protruding toward the heater 31, which is advantageous for elastically abutting against the first electrode element 331 / second electrode element 332 from the outside. Specifically, after assembly, the first contact 3411 elastically abuts against the outer surface of the heater 31 and has an elastic deformation of about 0.1 to 1 mm, thereby making the first contact 3411 stably abut against the heater 31.
[0097] In an embodiment, the first electrical contact element 341 and / or the second electrical contact element 342 are then connected to the circuit board 20 by leads soldered onto the second contact head 3413.
[0098] according to Figure 9 As shown, the meandering third contact 3412 may include at least a first segment 34121 and a second segment 34122 arranged at intervals, and a gap 34123 formed or defined between the first segment 34121 and the second segment 34122; the gap 34123 promotes or increases the elasticity of the third contact 3412. This allows the third contact 3412 to stably abut against the first electrical connection region 3312 of the first electrode element 331 / the second electrical connection region 3322 of the second electrode element 332 after assembly.
[0099] In some embodiments, the first segment 34121 and the second segment 34122 are not arranged completely parallel. Specifically, the second segment 34122 is arranged completely perpendicular to the longitudinal direction of the first electrical contact element 341 and / or the second electrical contact element 342; the first segment 34121 has a slight tilt angle. For example, in Figure 9 In the first segment 34121 and the second segment 34122, there is an included angle α. In some specific embodiments, the included angle α between the first segment 34121 and the second segment 34122 is approximately between 0.5° and 5°.
[0100] according to Figures 2-8 As shown, heater 31 also includes:
[0101] A first insulating material layer 35 surrounds and encloses the heater 31 to at least partially provide insulation to the outside of the heater 31, thereby preventing heat from the heater 31 from being transferred outward. The first insulating material layer 35 is made of a flexible insulating material, such as a rolled aerogel layer.
[0102] After assembly, the first heat insulation material layer 35 at least partially wraps around the first contact head 3411 of the first electrical contact element 341 and / or the second electrical contact element 342 from the outside, thereby stably engaging or abutting the first contact head 3411 of the first electrical contact element 341 and / or the second electrical contact element 342 against the outside of the heater 31.
[0103] according to Figures 2-8 As shown, the heating mechanism 30 also includes:
[0104] Temperature sensor 313, such as a thermocouple or a PT1000 thermistor sensor, is attached to heater 31 by welding or abutment to sense the temperature of heater 31. In the assembly structure, a clearance opening 351 is also provided on the first heat insulation material layer 35; when the first heat insulation material layer 35 is rolled or wrapped around heater 31, temperature sensor 313 is embedded or located in clearance opening 351.
[0105] according to Figures 2-8 As shown, the heating mechanism 30 also includes:
[0106] A tubular retaining element 36 is used to house and retain the heater 31, the first electrical contact element 341, the second electrical contact element 342, and the first thermal insulation layer 35. The retaining element 36 is made of rigid metal, ceramic, or polymer plastic, etc.
[0107] The tubular retaining element 36 is open longitudinally at its upper end toward the opening 41 and closed at its lower end away from the opening 41; the retaining element 36 has a bottom wall 362 away from the opening 41. A first through hole 363 is arranged on the bottom wall 362 for the second contact head 3413 of the first electrical contact element 341 and / or the second electrical contact element 342 to pass through.
[0108] After assembly, the heater 31 is housed and held within the retaining element 36; the third contact head 3412 and the second contact head 3413 of the first electrical contact element 341 / second electrical contact element 342 are longitudinally clamped between the retaining element 36 and the heater 31. Specifically, the third contact head 3412 and the second contact head 3413 are longitudinally clamped between the bottom wall 362 of the retaining element 36 and the end wall 315 of the base 31. The second contact head 3413 of the first electrical contact element 341 and / or the second electrical contact element 342 extends from the retaining element 36 through the first through hole 363 in the bottom wall 362 to the outside of the retaining element 36, thereby facilitating the connection of the solder lead through the second contact head 3413 to the circuit board 20.
[0109] After assembly, the third contact head 3412 of the first electrical contact element 341 and / or the second electrical contact element 342 is squeezed or compressed; specifically, the third contact head 3412 is clamped or held between the end wall 315 of the heater 31 and the bottom wall 362 of the holding element 36. The first section 34121 of the third contact head 3412 abuts against the end wall 315 of the heater 31, and the second section 34122 abuts against the bottom wall 362 of the holding element 36.
[0110] Similarly, a second through hole is arranged on the bottom wall 362 for the wires of the temperature sensor 313 to pass through; after assembly, the wires of the temperature sensor 313 pass through the second through hole on the bottom wall 362 to the outside of the holding element 36, and then connect to the circuit board 20 so that the circuit can receive the sensing results of the temperature sensor 313.
[0111] according to Figure 10 As shown, a support protrusion 364 is arranged on the surface of the bottom wall 362 of the retaining element 36 facing the heater 31; the support protrusion 364 provides abutment and support for the second contact head 3413 of the first electrical contact element 341 and / or the second electrical contact element 342, thereby creating a gap or gap between the second contact head 3413 of the second electrical contact element 342 and the surface of the bottom wall 362.
[0112] according to Figures 2-8 As shown, the heating mechanism 30 also includes:
[0113] An annular end cap 37 is attached to the upper end of a retaining element 36. In an embodiment, the retaining element 36 has a radially outwardly extending flange 361 at its upper end, and the end cap 37 is attached to the flange 361 and thus to the upper end of the retaining element 36. An clearance hole 371 is provided within the annular end cap 37 for receiving the aerosol-generating article 1000 through the end cap 37 into the heater 31.
[0114] After assembly, the first end 311 of the heater 31 abuts against the end cap 37, thereby stably holding the heater 31 within the retaining element 36.
[0115] according to Figures 2-8 As shown, the end cap 37 is also provided with a number of notches 372 arranged circumferentially; when the end cap 37 is engaged with the flange 361 at the upper end of the retaining element 36, the notches 372 make the end cap 37 elastic.
[0116] according to Figures 2-8 As shown, the heating mechanism 30 also includes:
[0117] The flexible sealing element 39, such as an O-ring, is made of flexible silicone or thermoplastic elastic materials. The sealing element 39 is disposed between the end cap 37 and the retaining element 36, and surrounds the heater 31; the sealing element 39 is used to provide a seal between the end cap 37 and the heater 31. Specifically, the sealing element 39 provides a seal between the end cap 37 and the first end 311 of the heater 31 to prevent aerosols generated within the heater 31 from leaking out from the gap between the opening at the first end 311 and the end cap 37.
[0118] according to Figures 2-8 As shown, the heating mechanism 30 also includes:
[0119] A second insulating layer 38 surrounds or wraps around the retaining element 36 to at least partially provide insulation outside the retaining element 36, thereby preventing heat from the heater 31 from being transferred outward through the retaining element 36. The second insulating layer 38 is made of a flexible insulating material, such as a wound aerogel layer. Figures 2-8 As shown, the second insulating material layer 38 abuts longitudinally against the end cap 37 to provide a stop in the longitudinal direction.
[0120] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. An aerosol generating device, configured to heat an aerosol generating product to generate an aerosol; characterized in that, include: The chamber has an open opening; The aerosol-generated article can be received into or removed from the chamber through the opening; A tubular substrate has a first end facing the opening and a second end facing away from the first end; the substrate includes a sidewall extending from the first end to the second end and an end wall located at the second end; the sidewall at least partially surrounds or defines the chamber; the end wall defines the longitudinal length of the chamber and is used for aerosol-generating articles received in the chamber to abut against to form a stop; A heating element, formed or incorporated on the sidewall of the substrate, is used to heat the aerosol-generated article received in the chamber; An electrode element for guiding current on the heating element; the electrode element includes a body portion coupled to the heating element and an electrical connection region extending from the body portion to the end wall.
2. The aerosol generating device as described in claim 1, characterized in that, Also includes: Battery cells, used for power supply; A circuit board, electrically connected to the electrode element, is configured to provide power from the battery cell to the heating element; The electrode element is electrically connected to the circuit board at least through the electrical connection area.
3. The aerosol generating device as described in claim 2, characterized in that, The electrode element is also electrically connected to the circuit board through the main body portion.
4. The aerosol generating apparatus according to any one of claims 1 to 3, characterized in that, The main body extends longitudinally along the base and crosses the heating element.
5. The aerosol generating apparatus according to any one of claims 1 to 3, characterized in that, The width of the electrical connection area is greater than the width of the main body.
6. The aerosol generating apparatus according to any one of claims 1 to 3, characterized in that, The end wall has a chamfered portion that connects to the side wall, thereby creating a smooth connection between the end wall and the side wall.
7. The aerosol generating device as described in claim 2 or 3, characterized in that, Also includes: A conductive electrical contact element provides a conductive connection, at least partially, between the electrical connection area and the circuit board.
8. The aerosol generating device as described in claim 7, characterized in that, Also includes: A cylindrical retaining element for receiving and retaining the substrate and the electrical contact element; and the electrical contact element extends at least partially from inside the retaining element to outside the retaining element.
9. The aerosol generating device as described in claim 8, characterized in that, The electrical contact element includes a first contact head and a second contact head arranged opposite each other in the longitudinal direction, and a third contact head located between the first contact head and the second contact head; the third contact head is arranged substantially perpendicular to the longitudinal extension of the electrical contact element. The first contact head abuts against the body portion from the outside of the body portion, the second contact head extends at least partially from inside the retaining element to outside the retaining element, and the third contact head abuts against the electrical connection area.
10. The aerosol generating device as described in claim 8, characterized in that, The third contact head has a meandering shape, which makes the third contact head elastic; the third contact head is clamped between the end wall of the substrate and the retaining element and is at least partially compressed.
11. The aerosol generating device as described in claim 10, characterized in that, The third contact head includes at least a first section and a second section that are bent and twisted; the first section abuts against the electrical connection area, and the second section abuts against the retaining element; The first segment and the second segment are arranged in a non-parallel manner; and / or, the first segment and the second segment have an included angle of 0.5 to 5°.
12. An aerosol generating apparatus, configured to heat an aerosol generating product to generate an aerosol; characterized in that, include: A tubular substrate has a first end and a second end that are opposite to each other in the longitudinal direction; the first end is open, and an aerosol-generating article can be received in the substrate from the first end; the second end is provided with an end wall for the aerosol-generating article received in the substrate to abut against to form a stop. A heating element, formed or incorporated into the substrate, is used to heat an aerosol-generated article received in the substrate; Battery cells, used for power supply; A circuit board is configured to supply power from the battery cell to the heating element; A conductive electrical contact element provides at least a partial conductive connection between the heating element and the circuit board; A cylindrical retaining element is provided for accommodating or retaining the substrate and the electrical contact element; the electrical contact element has a tortuous and bent portion; the tortuous and bent portion is clamped between the end wall of the substrate and the retaining element, and is at least partially elastically compressed.
13. A heater for an aerosol generating device, characterized in that, include: The matrix has a first end and a second end that are opposite to each other along the longitudinal direction, the first end being open and the second end being closed; The matrix includes a tubular sidewall extending from the first end to the second end, and an end wall for closing the second end; A heating element is formed or incorporated into the sidewall of the substrate; An electrode element for guiding current on the heating element; the electrode element includes a body portion coupled to the heating element and an electrical connection region extending from the body portion to the end wall.