CN215347065U

CN215347065U - Heating assembly and smoking set comprising same

Info

Publication number: CN215347065U
Application number: CN202121397558.XU
Authority: CN
Inventors: 陈伟; 徐中立; 李永海
Original assignee: Shenzhen FirstUnion Technology Co Ltd
Current assignee: Shenzhen FirstUnion Technology Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-12-31
Anticipated expiration: 2031-06-23

Abstract

The present application relates to the field of smoking articles and provides a heating assembly and a smoking article comprising the heating assembly, the heating assembly comprising a heater for heating an aerosol-forming substrate to generate an aerosol; a temperature measuring element for sensing a temperature of the heater; a fixing seat for fixing one end of the heater; the fixing seat comprises a supporting part which is used for holding the temperature measuring element so that the temperature measuring element can be close to or contact with a preset position of the surface of the heater. The temperature measuring element is kept by the supporting part of the fixing seat; the stability of the position of the temperature measuring element is ensured, the reliability and consistency of temperature data acquisition are improved, and the smoking set is favorably and effectively controlled.

Description

Heating assembly and smoking set comprising same

Technical Field

The application relates to the smoking set field, especially relates to a heating element and smoking set including this heating element.

Background

Smoking articles such as cigarettes and cigars burn tobacco during use to produce an aerosol. Attempts have been made to provide alternatives to these tobacco-burning articles by creating products that release compounds without burning. An example of such a product is a so-called heat not burn product, which releases compounds by heating tobacco instead of burning tobacco.

The existing smoking set which is non-combustible and is heated at low temperature needs to be subjected to temperature data acquisition by an external temperature measuring element so as to control the temperature of the heater. The temperature measuring element needs to ensure the stability of the position, otherwise, the acquired temperature data are easy to cause inaccuracy, and the temperature of the smoking set heater cannot be effectively controlled, so how to fix the temperature measuring element and ensure the stability of the position of the temperature measuring element is a key concern of the existing smoking set manufacturers.

SUMMERY OF THE UTILITY MODEL

The application provides a heating element and smoking set including this heating element aims at how fixed temperature element, ensures the stability of temperature element position.

One aspect of the present application provides a heating assembly comprising:

a heater for heating an aerosol-forming substrate to generate an aerosol;

a temperature measuring element for sensing a temperature of the heater;

a fixing seat for fixing one end of the heater; the fixing seat comprises a supporting part which is used for holding the temperature measuring element so that the temperature measuring element can be close to or contact with a preset position of the surface of the heater.

In another aspect, the present application provides a smoking set comprising the above-mentioned heating assembly.

The heating assembly and the smoking set comprising the same have the advantages that the temperature measuring element is kept through the supporting part of the fixing seat; the stability of the position of the temperature measuring element is ensured, the reliability and consistency of temperature data acquisition are improved, and the smoking set is favorably and effectively controlled.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

FIG. 1 is a schematic view of a smoking article provided by an embodiment of the present application;

figure 2 is a schematic view of a smoking article and an aerosol-generating article provided by embodiments of the present application;

FIG. 3 is a schematic view of a heating assembly provided by an embodiment of the present application;

FIG. 4 is an exploded schematic view of a heating assembly provided by embodiments of the present application;

FIG. 5 is a schematic cross-sectional view of a heating assembly provided by an embodiment of the present application;

FIG. 6 is a schematic view of a heater provided by an embodiment of the present application;

FIG. 7 is a schematic view of another heater provided by embodiments of the present application;

FIG. 8 is a schematic view from another perspective of another heater provided by embodiments of the present application;

FIG. 9 is a schematic view of an electrode connection provided by an embodiment of the present application;

FIG. 10 is a schematic view of a lower fixing base provided in an embodiment of the present application;

FIG. 11 is a schematic view of another perspective of the lower fixing base provided in the present application;

FIG. 12 is a schematic cross-sectional view of a lower fixing base provided in an embodiment of the present application;

FIG. 13 is a schematic view of a temperature sensing element provided in an embodiment of the present application.

Detailed Description

To facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1-2 illustrate a smoking set 100 provided in the present embodiment, which includes a heating assembly 10, a chamber 20, a battery cell 30, a circuit 40, and a housing assembly 50. The heating assembly 10, the chamber 20, the battery cell 30, and the circuit 40 are disposed within the housing assembly 50.

A heating assembly 10 for heating an aerosol-forming substrate to generate a smokable aerosol.

A chamber 20 for receiving an aerosol-forming substrate.

An aerosol-forming substrate is a substrate capable of releasing volatile compounds that can form an aerosol. Such volatile compounds may be released by heating the aerosol-forming substrate. The aerosol-forming substrate may be solid or liquid or comprise solid and liquid components. The aerosol-forming substrate may be adsorbed, coated, impregnated or otherwise loaded onto a carrier or support. The aerosol-forming substrate may conveniently be part of an aerosol-generating article 200.

The battery 30 provides power for operating the smoking article 100. For example, the battery cells 30 may provide power for heating by the heating assembly 10. In addition, the electrical core 30 may provide the power required to operate other elements provided in the smoking article 100. The battery cell 30 may be a rechargeable battery or a disposable battery.

The circuitry 40 may control the overall operation of the smoking article 100. The circuit 40 controls the operation of not only the battery cell 30 and the heating assembly 10, but also the operation of other elements in the smoking article 100. For example: the circuit 40 acquires the temperature information of the heating assembly 10 sensed by the temperature measuring element 109, and controls the electric power supplied to the heating assembly 10 by the electric core 30 according to the information.

Fig. 3-5 illustrate a heating assembly according to an embodiment of the present disclosure, in which the heating assembly 10 includes an upper fixing base 101, an upper sealing member 102, a sleeve 103, a heater 104, an electrode connector 105, a lower sealing member 106, a fastening member 107, a sealing ring 108, a temperature measuring element 109, a lower fixing base 110, and a base 111.

Fig. 6 is a heater 104 according to an embodiment of the present application, where the heater 104 includes:

the base 104a has a chamber formed therein adapted to receive an aerosol-forming substrate.

Specifically, the base 104a includes a proximal end A and a distal end B, a surface extending between the proximal end A and the distal end B. The base 104a is hollow internally forming a chamber adapted to receive an aerosol-forming substrate. The substrate 104a may have a cylindrical shape, a prismatic shape, or other cylindrical shapes. The substrate 104a is preferably cylindrical, and the chamber is a cylindrical hole through the middle of the substrate 104a, the inner diameter of the hole being slightly larger than the outer diameter of the aerosol-generating article 200 to facilitate the aerosol-generating article 200 to be placed in the chamber for heating thereof.

The substrate 104a may be made of a transparent material such as quartz glass, ceramic, or mica, which is resistant to high temperature, or may be made of other materials having high infrared transmittance, such as: the high temperature resistant material having an infrared transmittance of 95% or more is not particularly limited.

The infrared electrothermal layer is formed on the surface of the base 104 a. The infrared electrothermal layer may be formed on the outer surface of the substrate 104a, or may be formed on the inner surface of the substrate 104 a.

In this example, the outer surface of the substrate 104a includes coated regions 104a1 and uncoated regions 104a 2. Wherein the non-coated region 104a2 is disposed proximate the distal end B of the substrate 104 a. Typically, the length of the uncoated region 104a2 in the axial direction is 1mm to 2 mm. An infrared electrothermal layer is formed on the coated region 104a1 of the outer surface of the substrate 104 a. The infrared electrothermal layer receives the electric power provided by the battery cell 30 to generate heat, and then generates infrared rays with certain wavelengths, for example: 8-15 μm far infrared ray.

And electrodes including a first electrode 104b and a second electrode 104c which are arranged on the substrate 104a at intervals, for feeding the electric power provided by the battery cell 30 to the infrared electrothermal layer. The first electrode 104b and the second electrode 104c are each at least partially electrically connected to the infrared heater layer such that current can flow from one of the electrodes to the other electrode via the infrared heater layer.

In this example, the first electrode 104b and the second electrode 104c are conductive coatings, the conductive coatings may be metal coatings or conductive tapes, and the like, and the metal coatings may include silver, gold, palladium, platinum, copper, nickel, molybdenum, tungsten, niobium, or metal alloy materials thereof.

The first electrode 104b and the second electrode 104c are disposed symmetrically along the central axis of the base 104 a. Specifically, the method comprises the following steps:

the first electrode 104b includes a coupling portion 104b2 extending in the circumferential direction of the base 104a and a strip portion 104b1 extending from the coupling portion 104b2 toward the proximal end a in the axial direction, the coupling portion 104b2 being disposed in a non-coated region 104a2 of the outer surface of the base 104a, and a portion of the strip portion 104b1 being located in the coated region 104a1 to form an electrical connection with the infrared electrothermal layer.

The second electrode 104c includes a coupling portion 104c2 extending in the circumferential direction of the base 104a and a strip portion 104c1 extending from the coupling portion 104c2 toward the proximal end a in the axial direction, the coupling portion 104c2 is provided in a non-coated region 104a2 of the outer surface of the base 104a, and a portion of the strip portion 104c1 is located in the coated region 104a1 to form an electrical connection with the infrared electrothermal layer.

Fig. 7-8 illustrate another heater provided in the present embodiment, which is different from fig. 6 in that the electrodes further include a third electrode 104d disposed on the substrate 104a at intervals, i.e., the first electrode 104b, the second electrode 104c, and the third electrode 104d are all spaced from each other. The first electrode 104b and the second electrode 104c are both positive electrodes, and the third electrode 104d is a common negative electrode.

The third electrode 104d includes a coupling portion 104d2 disposed within the uncoated region 104a2, a strip portion 104d1 extending axially from the coupling portion 104d2 toward the proximal end a.

The coupling portions 104B2, 104c2, and 104d2 are spaced apart from each other in the uncoated region 104a2 at the distal end B of the substrate 104 a. The strip portion 104b1, the strip portion 104c1, and the strip portion 1151 divide the infrared electrothermal layer into two independent heating regions in the circumferential direction of the base 104 a. After the coupling portions 104b2, 104c2, and 104d2 are coupled to the battery cell 30, heating of different regions of the aerosol-forming substrate can be achieved by controlling two independent heating regions to start heating.

Note that the above-described segmented heating is not limited to the segmentation in the circumferential direction. In other examples, up and down segmentation is also possible.

It is further noted that in the examples of fig. 3-8, the heaters 104 are all infrared heaters. In other examples, the heater 104 may be a resistive heating, an electromagnetic heating, or the like, and is also possible. For convenience of description, the following examples are all explained with the infrared heater in fig. 3 to 8.

As will be understood with reference to fig. 3-6 and 9, the smoking set 100 includes two electrode connectors 105, and the two electrode connectors 105 are connected to the first electrode 104b and the second electrode 104c in a one-to-one correspondence. The following description will be given taking the electrode connecting member 105 electrically connected to the first electrode 104b as an example:

the electrode connection member 105 includes a contact portion and an extension portion 105 b. At least a portion of the contact portion protrudes toward the outer surface of the base 104a to make contact with the coupling portion 104b2 to form an electrical connection; the extension portion 105b extends toward a position away from the base 104a relative to the contact portion, and the extension portion 105b is used for coupling the battery cell 30.

The contact part comprises a body 105a and four cantilevers 105a1 hollowed out on the body 105 a. When the four cantilevers 105a1 abut against the coupling part 104b2, an elastic force can be generated, and the four cantilevers are electrically connected with the coupling part 104b 2; the extension 105b extends from the body 105a toward a position away from the base 104 a.

The body 105a is matched in shape to the end of the base 104a, specifically, the body 105a is formed in an arc shape, and the body 105a has an abutment 105a2 extending in the radial direction. The arc-shaped body 105a is closely attached to the end face of the base 104a, and the abutting part 105a2 abuts against the end of the base 104a to limit the relative position of the contact part and the base 104a, so that the cantilever 105a1 is positioned at the coupling part 104b 2.

Four suspension arms 105a1 are provided on the body 105a at intervals in the circumferential direction of the base 104 a. In other examples, the number of cantilevers 105a1 is not limited, and may be more or less than four, and it will be appreciated that multiple cantilevers 105a1 may be helpful for reliably electrically connecting electrodes, but may increase manufacturing costs, and may be selected by one skilled in the art as desired.

The upper fixing seat 101 is used for fixing the proximal end a of the base 104a, and the upper sealing member 102 is disposed between the upper fixing seat 101 and the proximal end a. The lower fixing seat 110 is used for fixing the distal end B of the base 104a, and the lower sealing member 106 is disposed between the lower fixing seat 110 and the distal end B. The sealing ring 108 is sleeved on the lower fixed seat 110. The lower fixing base 110 is fastened to the base 111 by a fastener 107. The upper fixing seat 101 and the lower fixing seat 110 are made of insulating, high-temperature-resistant and heat-insulating materials. The sleeve 103 is sleeved outside the heater 104, and has one end abutting against the upper fixing base 101 and the other end abutting against the lower fixing base 110.

Referring to fig. 10-13, the lower fixing base 110 includes an outer cylinder 110a, an inner cylinder 110B, and an extension 110c extending from an outer surface of the inner cylinder 110B to an inner surface of the outer cylinder 110a, and the distal end B of the base 104a is disposed between the outer surface of the inner cylinder 110B and the inner surface of the outer cylinder 110a and is retained on the extension 110 c.

The inner cylinder 110b has a substantially hollow tubular shape, one end of which is closed and the other end of which is open, and an air flow flows in from the open end. The extension 110c extends from the open end of the inner cylinder 110b to the inner surface of the outer cylinder 110 a. The axial direction length of the inner cylinder 110b is smaller than the axial direction length of the outer cylinder 110 a. In other examples, both ends of the inner cylinder 110b may be open, and the air flow may flow in from the lower open end and flow out from the upper open end.

The outer barrel 110a has a first end 110a1, a second end 110a2 opposite the first end 110a1, and a distal end B of the base 104a is interposed between the outer surface of the inner barrel 110B and the inner surface of the outer barrel 110a along the direction of extension of the first end 110a1 to the second end 110a 2.

The outer cylinder 110a also has a support portion C for holding the temperature measuring element 109 so that the temperature measuring element 109 can come close to or contact a predetermined position on the outer surface of the base body 104 a. The support portion C is formed by a portion of the outer cylinder 110a and extends axially along the base 104a such that the temperature measuring element 109 is positioned at a predetermined position on the outer surface of the base 104a between the ends of the base 104 a.

Support portion C includes a receiving portion 110a3, and receiving portion 110a3 is disposed proximate first end 110a 1. The receiving portion 110a3 is located upstream of the end of the inner barrel 110b near the second end 110a2, i.e., the receiving portion 110a3 is located above the closed end of the inner barrel 110 b. The receiving portion 110a3 is formed by a partial inner surface depression of the support portion C. As will be understood with reference to fig. 5 and 13, the temperature measuring element 109 for sensing the temperature of the heater 104 includes a body 109a, a lead 109b electrically connected to the body 109a, and a lead 109 c. The body 109a is received in the receiving portion 110a3 such that the body 109a is capable of approaching or contacting a predetermined location on the surface of the heater 104, i.e., a predetermined location on the outer surface of the substrate 104 a. The accommodating part 110a3 is used for accommodating the temperature measuring element 109, so that the position stability of the temperature measuring element 109 can be ensured, the reliability and consistency of temperature data acquisition are improved, and the smoking set 100 can be effectively controlled.

Further, a first notched groove 110a0 and a second notched groove 110a9 extending in the axial direction are provided at intervals in the circumferential direction of the outer cylinder 110a, and a support portion C is formed between the first notched groove 110a0 and the second notched groove 110a9, thereby constituting a cantilever structure; the first cutaway groove 110a0 and the second cutaway groove 110a9 are each formed by a portion of the end face of the first end 110a1 being recessed toward the second end 110a 2; by providing the notched groove, it is possible to save material while allowing the support portion C to be deformed by the pressing action of the surrounding member (e.g., the outer sleeve 103), thereby allowing the body 109a received in the receiving portion 110a3 to be closer to or in contact with a predetermined position of the surface of the heater 104.

The support part C further includes a groove 110a4 formed on an outer surface of the support part C, a coupling hole 110a8 communicating the groove 110a4 and the receiving part 110a3, and a through hole 110a5 communicating with the groove 110a 4; both the connection hole 110a8 and the through hole 110a5 penetrate the inner and outer surfaces of the support part C, a part of the inner wall of the connection hole 110a8 is inclined to the axial direction of the outer cylinder 110a (the angle between the two is an obtuse angle), and the through hole 110a5 is disposed below the open end or extension 110C of the inner cylinder 110 b. When the body 109a is received in the receiving portion 110a3, the

leads

109b and 109c sequentially pass through the connecting hole 110a8, the groove 110a4 and the through hole 110a5 and extend out of the lower fixing base 110 from the second end 110a2, and the partial leads 109b and 109c are received in the connecting hole 110a8, the groove 110a4 and the through hole 110a 5. In this way, it is possible to prevent the lead 109b or the lead 109c from coming close to or contacting the heater 104.

The second end 110a2 of the outer barrel 110a also has a flange 110a6, and one end of the sleeve 103 abuts against the flange 110a 6. The sleeve 103 is configured to reduce the heat radiation of the heater 104 in the radial direction, and may be implemented by disposing a heat insulating material in the sleeve 103, or by vacuum pumping, or by sealing air, and is not limited herein. The flange 110a6 has a fixing hole 110a7 for fixing the lower fixing base 110; thus, the lower fixing base 110 can be fastened to the base 111 through the fixing hole 110a7 and the fastener 107. The base 111 may be a separate structural member or may be a part of the housing assembly 50, and is not particularly limited thereto.

Extension 110c has via 110c 1; the extension 105b of the electrode connector may pass through the aperture 110c1 and extend along the inner surface of the outer barrel 110 a.

The extension further has a post 110c2, the distal end B of base 104a having a notch 104a 3; post 110c2 mates with notch 104a3 to stop distal B of base 104a from rotating circumferentially.

The assembly process of the heating assembly 10 is generally as follows:

step 1: the lower sealing member 106, the two electrode connectors 105 are assembled in the lower fixing base 110, i.e. the extension 105b of the electrode connector 105 passes through the through hole 110c1, and the lower sealing member 106 is placed on the extension 110c, thereby forming the assembly 1;

step 2: fixing the assembly 1 on a base 111 through a fastener 107 (such as a screw), and sleeving a sealing ring 108 on a lower fixed seat 110 to form an assembly 2;

and step 3: fitting the upper seal 102 into the upper holder 101 and interference fitting the upper holder 101 with the sleeve 103, thereby forming the assembly 3;

and 4, step 4: inserting the distal end B of the base 104a into the lower anchor 110 in the assembly 2, thereby forming the assembly 4;

and 5: the assembly 3 is assembled with the assembly 4 to complete the assembly of the heating assembly 10.

When the base 104a needs to be replaced, the component 3 is detached, the base 104a is taken out, and the component 3 and the component 4 are assembled together after a new base 104a is inserted.

As can be seen from the above, the assembling and replacing of the base body 104a requires a small number of steps and is highly efficient.

It should be noted that the description of the present application and the accompanying drawings set forth preferred embodiments of the present application, however, the present application may be embodied in many different forms and is not limited to the embodiments described in the present application, which are not intended as additional limitations to the present application, but are provided for the purpose of providing a more thorough understanding of the present disclosure. Moreover, the above-mentioned technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope described in the present specification; further, modifications and variations may occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.

Claims

1. A heating assembly, comprising:

a heater for heating an aerosol-forming substrate to generate an aerosol;

a temperature measuring element for sensing a temperature of the heater;

2. The heating assembly of claim 1, wherein the support extends axially along the heater such that the temperature sensing element is positioned at a predetermined location on the heater surface between the ends of the heater.

3. The heating assembly of claim 1, wherein the support portion is configured to be cantilevered relative to the other portions of the anchor block.

4. The heating assembly of claim 1, wherein the support portion includes a receiving portion for receiving at least a portion of the temperature sensing element.

5. The heating assembly of claim 4, wherein the receiving portion is disposed proximate an end of the support portion.

6. The heating assembly of claim 4, wherein the support includes a first face facing the heater, a second face opposite the first face; the accommodating part is formed by at least partially recessing the first surface.

7. The heating assembly of claim 6, wherein the support portion further comprises a groove formed in the second face and a connection hole communicating the groove and the receiving portion;

the temperature measuring element is provided with a lead wire, and at least part of the lead wire is accommodated in the groove and the connecting hole.

8. The heating assembly of claim 7, wherein the support portion further comprises a through hole, and the lead wire can pass through the through hole and then extend from inside the fixing seat to outside the fixing seat.

9. The heating assembly of claim 8, wherein the through-hole is in communication with the recess.

10. The heating assembly of claim 1, wherein the holder includes an outer barrel that is sleeved over one end of the heater, the support being formed by at least a portion of the outer barrel.

11. The heating assembly of claim 10, wherein the holder comprises an inner barrel and an extension extending from the inner barrel to the outer barrel; one end of the heater is disposed between the inner cylinder and the outer cylinder and held on the extension.

12. The heating assembly of claim 11, wherein the extension has a via;

the heating assembly further comprises an electrode connecting piece used for being electrically connected with the heater, and one end of the electrode connecting piece can penetrate through the through hole and extend outwards towards the fixed seat.

13. The heating assembly of claim 11, wherein the extension has a post, and one end of the heater has a notch;

the convex column is matched with the notch to limit the heater.

14. The heating assembly of claim 1, wherein the holder has a flange at one end thereof, the flange having a fixing hole for fixing the holder.

15. The heating assembly of claim 1, wherein the heater comprises a substrate, an electrode, and an infrared electrothermal layer formed on the substrate;

the electrodes comprise a first electrode and a second electrode, and the first electrode and the second electrode are connected with the infrared electrothermal layer through wires.

16. A heating assembly as claimed in claim 15, in which the electrodes further comprise a third electrode in electrical connection with the electrothermal infra-red layer, the first, second and third electrodes being arranged to separate the electrothermal infra-red layer into two heating zones to effect heating of different regions of the aerosol-forming substrate.

17. The heating assembly of claim 1, further comprising a sleeve surrounding the heater, the support being sandwiched between the sleeve and the heater.

18. The heating assembly of claim 17, wherein the sleeve is configured to reduce thermal radiation of the heater in a radial direction.

19. A smoking article comprising a heating element according to any one of claims 1 to 18.