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EP-4360478-B1 - HEATING ASSEMBLY, AND VAPING SET COMPRISING SAME

EP4360478B1EP 4360478 B1EP4360478 B1EP 4360478B1EP-4360478-B1

Inventors

  • CHEN, WEI
  • XU, Zhongli
  • LI, Yonghai

Dates

Publication Date
20260513
Application Date
20220623

Claims (15)

  1. A heating assembly (10), comprising: a heater (104), configured to heat an aerosol-forming substrate to generate an aerosol; a temperature measuring element (109), configured to sense a temperature of the heater (104); and a fixing base (110), configured to fix an end of the heater (104), wherein the fixing base (110) comprises a support portion (C), and the support portion (C) is configured to hold the temperature measuring element (109), to enable the temperature measuring element (109) to be close to or in contact with a preset position on a surface of the heater (104); wherein the support portion (C) comprises an accommodating portion (110a3), and the accommodating portion (110a3) is configured to receive at least a part of the temperature measuring element (109); wherein the support portion (C) comprises a first surface facing the heater (104) and a second surface opposite to the first surface; and the accommodating portion (110a3) is formed by recessing at least a part of the first surface; characterized in that the support portion (C) further comprises a groove (110a4) formed on the second surface and a connection hole (110a8) that connects the groove (110a4) to the accommodating portion (110a3); and the temperature measuring element (109) is provided with a leading wire (109b, 109c), and at least a part of the leading wire (109b, 109c) is accommodated in the groove (110a4) and the connection hole(110a8).
  2. The heating assembly (10) according to claim 1, wherein the support portion (C) extends axially along the heater (104), to enable a preset position of the temperature measuring element (109) positioned on the surface of the heater (104) to be between two ends of the heater (104).
  3. The heating assembly (10) according to claim 1, wherein the support portion (C) is constructed into an arm structure relative to other portions of the fixing base (110).
  4. The heating assembly (10) according to claim 1, wherein the accommodating portion (110a3) is arranged close to an end portion of the support portion (C).
  5. The heating assembly (10) according to claim 1, wherein the support portion (C) further comprises a through hole (110a5), and the leading wire (109b, 109c) is configured to be threaded through the through hole (110a5) and then extend from the inside of the fixing base (110) to the outside of the fixing base (110); and the through hole (110a5) is in communication with the groove (110a4).
  6. The heating assembly (10) according to claim 1, wherein the fixing base (110) comprises an outer cylinder (110a) sleeved over the end of the heater (104), and the support portion (C) is formed by at least a part of the outer cylinder (110a).
  7. The heating assembly (10) according to claim 6, wherein the fixing base (110) comprises an inner cylinder (110b) and an extending portion (110c) extending from the inner cylinder (110b) to the outer cylinder (110a); and the end of the heater (104) is arranged between the inner cylinder (110b) and the outer cylinder (110a) and held on the extending portion (110c).
  8. The heating assembly (10) according to claim 7, wherein the extending portion (110c) is provided with a via hole (110c1); and the heating assembly (10) further comprises an electrode connector (105) configured to be electrically connected to the heater (104), and an end of the electrode connector (105) is configured to be threaded through the via hole (110c1) and extend toward the outside of the fixing base (110).
  9. The heating assembly (10) according to claim 7, wherein the extending portion (110c) is provided with a convex pillar (110c2), and the end of the heater (104) is provided with a notch (104a3); and the convex pillar (110c2) matches the notch (104a3) to limit a position of the heater (104).
  10. The heating assembly according to claim 1, wherein an end of the fixing base (110) is provided with a flange (110a6), and the flange (110a6) is provided with a fixing hole (110a7) configured to fix the fixing base (110).
  11. The heating assembly (10) according to claim 1, wherein the heater (104) comprises a base body (104a), an electrode (104b, 104c, 104d), and an electric infrared heating layer formed on the base body (104a); and the electrode comprises a first electrode (104b) and a second electrode (104c), and the first electrode (104b) and the second electrode (104c) are connected to the electric infrared heating layer through an electric wire.
  12. The heating assembly (10) according to claim 11, wherein the electrode further comprises a third electrode (104d) connected to the electric infrared heating layer through an electric wire, and the first electrode (104b), the second electrode (104c), and the third electrode (104d) are configured to partition the electric infrared heating layer into two heating regions, to heat different regions of the aerosol-forming substrate.
  13. The heating assembly (10) according to claim 1, wherein the heating assembly (10) further comprises a sleeve pipe (103) peripherally surrounding the heater (104), and the support portion (C) is clamped between the sleeve pipe (103) and the heater (104).
  14. The heating assembly (10) according to claim 13, wherein the sleeve pipe (103) is constructed to reduce radial heat radiation from the heater (104).
  15. A cigarette device (100), comprising the heating assembly (10) according to any one of claims 1 to 14.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to Chinese Patent Application No. 202110695262.4, filed with the China National Intellectual Property Administration on June 23, 2021 and entitled "HEATING ASSEMBLY AND CIGARETTE DEVICE INCLUDING HEATING ASSEMBLY". TECHNICAL FIELD This application relates to the field of cigarette devices, and in particular, to a heating assembly and a cigarette device including the heating assembly. BACKGROUND During use of smoking items such as cigarettes and cigars, tobacco is burnt to generate smoke. Attempts have been made to provide substitutes for these tobacco-burning items by producing products that release compounds without burning. An example of such a product is a so-called heat-not-burn product which releases a compound by heating instead of burning tobacco. For an existing low-temperature heat-not-burn cigarette device, temperature data of a heater needs to be collected through an external temperature measuring element to control a temperature of the heater. The stability of a position of the temperature measuring element needs to be ensured. Otherwise, it is very easy to cause the collected temperature data to be inaccurate and the temperature of the heater of the cigarette device cannot be effectively controlled. Therefore, how to fix the temperature measuring element and ensure the stability of the position of the temperature measuring element is a main focus of existing cigarette device manufacturers. A heating assembly according the the preamble of claim 1 is known from CN 212 279 897 U. SUMMARY This application provides a heating assembly and a cigarette device including the heating assembly, aiming at how to fix a temperature measuring element and ensure the stability of a position of the temperature measuring element. The invention is defined by the appended claims. An aspect of this application provides a heating assembly, including: a heater, configured to heat an aerosol-forming substrate to generate an aerosol;a temperature measuring element, configured to sense a temperature of the heater; anda fixing base, configured to fix an end of the heater, where the fixing base includes a support portion, and the support portion is configured to hold the temperature measuring element, to enable the temperature measuring element to be close to or in contact with a preset position on a surface of the heater. Another aspect of this application provides a cigarette device, including the foregoing heating assembly. According to the heating assembly and the cigarette device including the heating assembly provided in this application, the temperature measuring element is held through the support portion of the fixing base, which ensures the stability of the position of the temperature measuring element, improves the reliability and consistency of temperature data collection, and facilitates effective control of the cigarette device. The invention is set out in the appended set of claims. BRIEF DESCRIPTION OF THE DRAWINGS One or more embodiments are exemplarily described with reference to the corresponding figures in the accompanying drawings, and the descriptions do not constitute a limitation to the embodiments. Components in the accompanying drawings that have same reference numerals are represented as similar components, and unless otherwise particularly stated, the figures in the accompanying drawings are not drawn to scale. FIG. 1 is a schematic diagram of a cigarette device according to an implementation of this application;FIG. 2 is a schematic diagram of a cigarette device and an aerosol-generating product according to an implementation of this application;FIG. 3 is a schematic diagram of a heating assembly according to an implementation of this application;FIG. 4 is a schematic exploded view of a heating assembly according to an implementation of this application;FIG. 5 is a schematic cross-sectional diagram of a heating assembly according to an implementation of this application;FIG. 6 is a schematic diagram of a heater according to an implementation of this application;FIG. 7 is a schematic diagram of another heater according to an implementation of this application;FIG. 8 is a schematic diagram from another perspective of another heater according to an implementation of this application;FIG. 9 is a schematic diagram of an electrode connector according to an implementation of this application;FIG. 10 is a schematic diagram of a lower fixing base according to an implementation of this application;FIG. 11 is a schematic diagram from another perspective of a lower fixing base according to an implementation of this application;FIG. 12 is a schematic cross-sectional diagram of a lower fixing base according to an implementation of this application; andFIG. 13 is a schematic diagram of a temperature measuring element according to an implementation of this application. DETAILED DESCRIPTION For ease of understanding of this application, thi