CN213344352U - Heater and smoking set comprising same - Google Patents

Abstract

The present application relates to the field of smoking article technology and provides a heater and a smoking article comprising the heater, the heater comprising a heating element for heating an aerosol-forming substrate to volatilise at least one component of the aerosol-forming substrate; a conductive member crimped to the heating body; the conductive piece is provided with a plurality of deformation contact parts which are electrically connected with the heating body; the conductive member is used for feeding electric power of a power supply to the heat generating body. The electric power of a power supply is fed to the heating body through the plurality of deformation contact parts; compared with the existing smoking set, the heating body does not need to be additionally provided with a conductive coating or a conductive electrode, so that the cost of the heater is saved; the welding of the conducting wire on the conducting piece is simple and convenient, and the welding process is simplified.

Description

Heater and smoking set comprising same

Technical Field

The application relates to the technical field of smoking sets, in particular to a heater and a smoking set comprising the same.

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 by low-temperature heating mainly coats a far infrared coating and a conductive coating on the outer surface of a base body, and the electrified far infrared coating emits far infrared rays to penetrate through the base body and heat aerosol-forming substrates in the base body; because far infrared has stronger penetrability, can penetrate aerosol formation substrate's periphery and get into inside for it is comparatively even to aerosol formation substrate's heating.

In the smoking set, the conductive coating is usually coated on both ends of the substrate, and then the conductive coating is sleeved by the conductive ring with the gap, and then the external lead is welded on the conductive ring. The smoking set has the problems that the conductive coating needs to be coated on the outer surface of the base body, and the conducting wire needs to be welded on the conducting ring, so that the cost is high, and the welding process is complicated.

Disclosure of Invention

The application provides a heater and a smoking set comprising the heater, and aims to solve the problems that the existing smoking set needs to coat a conductive coating on the outer surface of a base body, and leads are welded on a conductive ring, so that the cost is high and the welding process is complex.

The present application provides in a first aspect a heater comprising:

a heating element for heating an aerosol-forming substrate to volatilise at least one component of the aerosol-forming substrate;

a conductive member crimped to the heating body; the conductive piece is provided with a plurality of deformation contact parts which are electrically connected with the heating body; the conductive member is used for feeding electric power of a power supply to the heat generating body.

A second aspect of the present application provides a smoking article comprising a housing assembly, and the heater of the first aspect; the heater is disposed within the housing assembly.

The heater and the smoking set comprising the heater are characterized in that a conductive piece with a plurality of deformation contact parts is pressed on a heating body, and electric power of a power supply is fed to the heating body through the deformation contact parts; compared with the existing smoking set, the heating body does not need to be additionally provided with a conductive coating or a conductive electrode, so that the cost of the heater is saved; the welding of the conducting wire on the conducting piece is simple and convenient, and the welding process is simplified.

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 heater provided by an embodiment of the present application;

FIG. 2 is a schematic illustration of a substrate provided in accordance with an embodiment of the present application;

FIG. 3 is a schematic view of a conductive member according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a base of a conductive member according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a contact spring of a conductive member according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of another contact spring for a conductive member according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a smoking article provided by an embodiment of the present application;

fig. 8 is an exploded view of a smoking set according to an embodiment of the present disclosure.

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.

Implementation mode one

As shown in figure 1, there is provided a heater for heating an aerosol-forming substrate and vaporising at least one component of the aerosol-forming substrate to form an aerosol for consumption by a user in accordance with one embodiment of the present invention; the heater 1 includes a heating body 11 and a conductive member 12.

Referring to fig. 2, the heating element 11 includes a base 111 and an infrared electrothermal coating 112.

The substrate 111 is formed with a space containing the aerosol-forming substrate, the inner surface of the substrate 111 forming at least part of the boundary of the space.

In particular, the base 111 has first and second opposed ends, the base 111 extending longitudinally between the first and second ends and being hollow internally to form a chamber adapted to receive an aerosol-forming substrate. The substrate 111 may have a cylindrical shape, a prismatic shape, or other cylindrical shapes. The substrate 111 is preferably cylindrical, with the chamber being a cylindrical bore through the middle of the substrate 111, the bore having an inner diameter slightly larger than the outer diameter of the aerosol-forming article, to facilitate heating of the aerosol-forming article in the chamber.

The substrate 111 may be made of a material with high temperature resistance and high infrared transmittance, including but not limited to the following materials: quartz glass, ceramic or mica, and the like. Preferably, the substrate 111 is made of quartz glass.

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.

The aerosol-forming substrate may comprise nicotine. The aerosol-forming substrate may comprise tobacco, for example may comprise a tobacco-containing material containing volatile tobacco flavour compounds which are released from the aerosol-forming substrate when heated. Preferred aerosol-forming substrates may comprise homogenised tobacco material, for example deciduous tobacco. The aerosol-forming substrate may comprise at least one aerosol-former, which may be any suitable known compound or mixture of compounds which, in use, facilitates stable aerosol formation and is substantially resistant to thermal degradation at the operating temperature of the aerosol-generating system. Suitable aerosol-forming agents are well known in the art and include, but are not limited to: polyhydric alcohols such as triethylene glycol, 1, 3-butanediol and glycerin; esters of polyhydric alcohols, such as glycerol mono-, di-or triacetate; and fatty acid esters of mono-, di-or polycarboxylic acids, such as dimethyldodecanedioate and dimethyltetradecanedioate. Preferred aerosol formers are polyhydric alcohols or mixtures thereof, such as triethylene glycol, 1, 3-butanediol, and most preferably glycerol.

An infrared electrothermal coating 112 is coated on the surface of the substrate 111. The infrared electrothermal coating 112 may be coated on the outer surface of the substrate 111, or may be coated on the inner surface of the substrate 111. In this example, an infrared electrothermal coating 112 is coated on the outer surface of the substrate 111.

The infrared electrothermal coating 112 can generate heat when energized, and further generate infrared rays with certain wavelengths, such as: 8-15 μm far infrared ray. When the wavelength of the infrared light matches the absorption wavelength of the aerosol-forming substrate placed within the chamber, the energy of the infrared light is readily absorbed by the aerosol-forming substrate. In the present embodiment, the wavelength of the infrared ray is not limited, and may be an infrared ray of 0.75 to 1000 μm, preferably a far infrared ray of 1.5 to 400 μm.

The infrared electric heating coating 112 is formed by fully and uniformly stirring far infrared electric heating ink, ceramic powder and an inorganic adhesive, then is coated and printed on the outer surface of the substrate 111, and is dried and cured for a certain time, wherein the thickness of the infrared electric heating coating 112 is 30-50 mu m; certainly, the infrared electrothermal coating 112 can also be prepared by mixing and stirring tin tetrachloride, tin oxide, antimony trichloride, titanium tetrachloride and anhydrous copper sulfate according to a certain proportion and then coating the mixture on the outer surface of the substrate 111; or one of a silicon carbide ceramic layer, a carbon fiber composite layer, a zirconium-titanium oxide ceramic layer, a zirconium-titanium nitride ceramic layer, a zirconium-titanium boride ceramic layer, a zirconium-titanium carbide ceramic layer, an iron-based oxide ceramic layer, an iron-based nitride ceramic layer, an iron-based boride ceramic layer, an iron-based carbide ceramic layer, a rare earth oxide ceramic layer, a rare earth nitride ceramic layer, a rare earth boride ceramic layer, a rare earth carbide ceramic layer, a nickel-cobalt oxide ceramic layer, a nickel-cobalt nitride ceramic layer, a nickel-cobalt boride ceramic layer, a nickel-cobalt carbide ceramic layer or a high-silicon molecular sieve ceramic layer; the infrared electrothermal coating 112 may also be a coating of other materials that are known in the art.

Further, the heater 1 further includes a protective layer (not shown in the drawings) coated on the infrared electrothermal coating 112. The protective layer can be one or the combination of two of a polytetrafluoroethylene layer and a glaze layer, or a protective layer made of other high-temperature resistant materials. The protective layer can prevent the infrared electrothermal coating 112 from being worn.

A conductive member 12 pressure-bonded to the heating body 11; the conductive member 12 has a plurality of deformation contact portions electrically connected to the heating body 11. The conductive member 12 is for feeding electric power of a power supply to the heat generating body 11.

The heating element 11 is tubular; when the conductive member 12 is pressed against the heating body 11, the heating body 11 is deformed by the plurality of deformed contact portions to be adaptive to the size of the inside diameter or the outside diameter of the heating body 11.

Specifically, referring to fig. 3-5, the conductive member 12 includes a base 121 and a contact spring 122 forming a plurality of deformation contact portions.

The base 121 is annular and has an annular groove 1211 on an inner wall thereof. The annular groove 1211 faces an outer surface of the base 111 when the base 111 is inserted into the susceptor 121. The length of the susceptor 121 in the axial direction is approximately between 1mm and 3mm, preferably 1.5 mm. The connecting wires may be soldered directly to the base 121 when connected to a power source.

The contact spring 122 is retained in the annular recess 1211. The contact spring 122 is a closed ring-shaped contact spring formed by spirally winding a spring wire and connected at the head end and the tail end, and the cross section of the contact spring 122 is in an oblique ellipse shape. Specifically, the contact spring 122 can be obtained by spirally winding a spring wire into a unit ring along an oblique elliptical trajectory, then spirally winding the unit ring along an axis, and finally welding and fixing the head and the tail ends. Wherein each unit ring may form one deformation contact, and each deformation contact may have one or more contact points.

In this example, infrared electrothermal coating 112 is applied to the outer surface of substrate 111, and the inner diameter of conductive member 12 is smaller than the outer diameter of substrate 111 after contact spring 122 is retained in annular recess 1211. When the base 111 is inserted into the base 121, the contact spring 122 deforms itself to change the inner diameter of the conductive member 12 so as to adapt to the outer diameter of the base 111. This ensures that, on the one hand, conductive element 12 can be fixed to substrate 111 and, on the other hand, that the deformed contact portions of contact spring 122 are electrically connected to ir die 112, thereby feeding electrical power from the power source to ir die 112.

In the present example, the plurality of deformation contact portions (i.e., each unit ring) of the contact spring 122 are each disposed obliquely along the same circumferential direction (arrow direction shown in fig. 5) of the base 111. The included angle between the inclination direction of each deformation contact part and the radial direction of the heating element is an obtuse angle, such as the included angle between BA and AO shown in FIG. 5. In other examples, the inclination direction of each deformation contact portion may be an acute angle with the radial direction of the heat generating body.

The distance (indicated by d1 in fig. 5) between two adjacent ones of the plurality of deformed contact portions is 0.1 to 0.4mm, preferably 0.2 to 0.4mm, more preferably 0.2 to 0.35mm, and still more preferably 0.25 to 0.35 mm.

It should be noted that in other examples, when the infrared electrothermal coating 112 is coated on the inner surface of the substrate 111, an annular groove 1211 may be formed on the outer wall of the base 121. Thus, when the susceptor 121 is set in the base body 111, the annular groove 1211 faces the inner surface of the base body 111. After retaining contact spring 122 in annular recess 1211, conductive member 12 has an outer diameter greater than the inner diameter of base 111. When the base 121 is inserted into the base 111, the contact spring 122 deforms itself to change the outer diameter of the conductive member 12 to adapt to the inner diameter of the base 111.

Referring to fig. 6, in another example, the contact spring 122 is a closed ring spring formed by spirally winding, and the cross section of the contact spring 122 is triangular. Each unit ring includes a first connecting edge 1221, a second connecting edge 1222, and a third connecting edge 1223. The first connecting edge 1221, the second connecting edge 1222 and the third connecting edge 1223 are connected in sequence, the joints of the two adjacent edges form arc-shaped corners, the first connecting edge 1221 is linear, the second connecting edge 1222 and the third connecting edge 1223 are connected to form a V-shape, and the joints of the second connecting edge 1222 and the third connecting edge 1223 form contact points.

Similar to fig. 6, in another example, the contact spring 122 is a closed ring spring formed by spirally winding, and the contact spring 122 has a D-shaped cross section. Each unit ring comprises a first connecting edge, a second connecting edge, a third connecting edge and a fourth connecting edge.

In this example, the material of the base 121 and the contact spring 122 is selected from at least one of beryllium copper, beryllium cobalt copper, chromium zirconium copper, and brass. In order to increase the conductivity of the contact spring 122, the outer surface of the contact spring 122 may further have a conductive coating, and the material of the conductive coating is selected from gold or silver.

It should be noted that, in the example of fig. 1, one conductive member 12 is respectively pressed at both ends of the base 111, and electric power from a power source is fed to the infrared electrothermal coating 112 through the two conductive members 12, so that the infrared electrothermal coating 112 receives the electric power to generate heat and then generate infrared rays, and at least transmits the energy of the infrared rays to the aerosol-forming substrate in a radiation manner.

Further, one conductive element 12 may be further pressed between two conductive elements 12, three conductive elements 12 being arranged to separate the infrared electrothermal coating 112 into a first part infrared electrothermal coating 112 and a second part infrared electrothermal coating 112 in the longitudinal direction of the substrate 111, and the heating of the aerosol-forming substrate in stages being achieved by controlling the different positions of the heated substrate 111 by independently controlling the electric power fed to the first part infrared electrothermal coating 112 and/or the second part infrared electrothermal coating 112. The staged heating ensures the heating rate of the aerosol-generating substrate, consistency of fragrance evaporation and mouth feel on smoking.

It should be noted that, in the example of fig. 1, the infrared electrothermal coating 112 is applied. In other examples, non-infrared radiant heating may also be used, such as: other non-infrared radiation heating electrothermal film layers. The electrocaloric film layer receives electrical power fed by electrical conductor 12 to generate heat and transfers the generated heat to the aerosol-forming substrate through substrate 111.

It should also be noted that in other examples, infrared electrocaloric coating 112 or other electrocaloric film layers may not be required and substrate 111 may generate heat upon receiving electrical power fed by conductive member 12 and transfer the heat generated by itself to the aerosol-forming substrate. The substrate 111 may be a metal substrate.

Second embodiment

Fig. 7-8 show a smoking set 100 according to a second embodiment of the present application, which includes a housing assembly 6 and the heater 1, wherein the heater 1 is disposed in the housing assembly 6. The smoking set 100 of the present embodiment includes a base 111, an infrared electrothermal coating 112 coated on the outer surface of the base 111, and a conductive member 12 (not shown in fig. 7 and 8, but see fig. 1) pressed on both ends of the base 111. Infrared electrothermal coating 112 generates heat by electrical power received from a power source through conductive element 12 such that infrared electrothermal coating 112 heats up by the heat and generates infrared radiation, and infrared electrothermal coating 112 radiatively heats the aerosol-forming substrate in the cavity of substrate 111.

The housing assembly 6 includes a housing 61, a fixing housing 62, a fixing member 63, and a bottom cover 64, wherein the fixing housing 62 and the fixing member 63 are fixed in the housing 61, the fixing member 63 is used for fixing the substrate 111, the fixing member 63 is disposed in the fixing housing 62, and the bottom cover 64 is disposed at one end of the housing 61 and covers the housing 61. Specifically, the mounting 63 includes last fixing base 631 and lower fixing base 632, go up fixing base 631 and lower fixing base 632 and all locate in fixed shell 62, the first end and the second end of base 111 are fixed respectively on last fixing base 631 and lower fixing base 632, the bottom 64 epirelief is equipped with intake pipe 641, the one end that lower fixing base 632 deviates from last fixing base 631 is connected with intake pipe 641, go up fixing base 631, base 1, lower fixing base 632 and the coaxial setting of intake pipe 641, and base 111 and last fixing base 631, seal down between the fixing base 632, lower fixing base 632 also seals with intake pipe 641, intake pipe 641 and the smooth air admission of can when so that the user sucks.

The smoking article 100 further comprises a control circuit board 3 and a battery 7. Fixed casing 62 includes preceding shell 621 and backshell 622, preceding shell 621 and backshell 622 fixed connection, and control circuit board 3 and battery 7 all set up in fixed casing 62, and battery 7 is connected with control circuit board 3 electricity, and button 4 is protruding to be established on shell 61, through pressing button 4, can realize the circular telegram or the outage to infrared electric heat coating 112 on base member 111 surface. The control circuit board 3 is further connected with a charging interface 31, the charging interface 31 is exposed on the bottom cover 64, and a user can charge or upgrade the smoking set 100 through the charging interface 31 to ensure the continuous use of the smoking set 100.

The smoking set 100 further comprises a heat insulation pipe 5, the heat insulation pipe 5 is arranged in the fixed shell 62, the heat insulation pipe 5 is sleeved outside the base body 111, and the heat insulation pipe 5 can prevent a large amount of heat from being transferred to the shell 61 to cause a user to feel hot. The insulating tube may include an insulating material, which may be an insulating gel, aerogel blanket, asbestos, aluminum silicate, calcium silicate, diatomaceous earth, zirconia, or the like. The heat insulating pipe 5 may be a vacuum heat insulating pipe. The inner surface of the heat insulating pipe 5 may be coated with an infrared ray reflective coating to reflect infrared rays radiated from the infrared electrothermal coating 112 back to the base 111, thereby improving heating efficiency.

The smoking article 100 further comprises a temperature sensor 2, for example an NTC temperature sensor. The temperature sensor 2 is used for detecting the real-time temperature of the substrate 111 and transmitting the detected real-time temperature to the control circuit board 3, and the control circuit board 3 adjusts the magnitude of the current flowing through the infrared electrothermal coating 112 according to the real-time temperature.

Specifically, when the temperature sensor 2 detects a low real-time temperature in the substrate 111, such as a temperature of less than 150 ℃ inside the substrate 111, the control circuit board 3 controls the battery 7 to output a higher voltage to the conductive member 12, thereby increasing the current fed into the infrared electrothermal coating 112, increasing the heating power of the aerosol-forming substrate, and reducing the waiting time for a user to suck a first mouth.

When the temperature sensor 2 detects that the temperature of the substrate 111 is 150-200 ℃, the control circuit board 3 controls the battery 7 to output normal voltage to the conductive member 12.

When the temperature sensor 2 detects that the temperature of the substrate 111 is 200-250 ℃, the control circuit board 3 controls the battery 7 to output lower voltage to the conductive member 12.

When the temperature sensor 2 detects that the temperature inside the base 111 is 250 ℃ or more, the control circuit board 3 controls the battery 7 to stop outputting the voltage to the conductive member 12.

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 (15)

1. A heater, characterized in that the heater comprises:

a heating element for heating an aerosol-forming substrate to volatilise at least one component of the aerosol-forming substrate;

a conductive member crimped to the heating body; the conductive piece is provided with a plurality of deformation contact parts which are electrically connected with the heating body; the conductive member is used for feeding electric power of a power supply to the heat generating body.

2. The heater according to claim 1, wherein the heating body has a tubular shape; when the conductive piece is in crimping connection with the heating body, the conductive piece is self-adaptive to the inner diameter or the outer diameter of the heating body through the deformation of the plurality of deformation contact parts.

3. The heater according to claim 1, wherein the plurality of deformation contact portions are each provided obliquely in the same circumferential direction of the heat-generating body.

4. The heater according to claim 3, wherein an angle between an inclined direction of each deformation contact portion and a radial direction of the heat generating body is an acute angle or an obtuse angle.

5. The heater of claim 1, wherein the distance between two adjacent ones of the plurality of deformational contacts is 0.1mm to 0.4mm, or 0.2mm to 0.35mm, or 0.25mm to 0.35 mm.

6. The heater as claimed in any one of claims 1 to 5, wherein said conductive member includes a contact spring forming said plurality of deformation contact portions, said contact spring being annular;

when the conductive piece is in press connection with the heating body, the conductive piece can be self-adapted to the inner diameter or the outer diameter of the heating body through the deformation of the contact spring.

7. The heater of claim 6, wherein the contact spring is a closed loop contact spring formed by a spiral winding of spring wire and connected end to end.

8. The heater of claim 7, wherein the contact spring has a cross-section in the shape of an oblique ellipse, a triangle, or a D.

9. The heater of claim 6, wherein the outer surface of the contact spring has a conductive coating, the conductive coating being made of a material selected from gold or silver.

10. The heater of claim 6, wherein said conductive member further comprises a base;

the base has an annular groove in which the contact spring is retained.

11. The heater according to claim 1, wherein the heat generating body includes:

a substrate;

an electrothermal film layer formed on the substrate; the electrocaloric film layer is adapted to receive the electrical power fed by the electrically conductive member to generate heat and to transfer the generated heat to the aerosol-forming substrate.

12. The heater of claim 11, wherein the electrocaloric film layer is an infrared electrocaloric coating;

the infrared electrothermal coating is used for receiving the electric power fed by the conductive piece to generate heat so as to generate infrared rays and at least radiatively transferring the energy of the infrared rays to the aerosol-forming substrate.

13. The heater of claim 12, further comprising a protective layer applied over the infrared electro-thermal coating to prevent abrasion of the infrared electro-thermal coating.

14. The heater according to claim 1, wherein the heat generating body includes a base;

the substrate is arranged to receive the electrical power fed by the electrically conductive member to generate heat and to transfer the generated heat to the aerosol-forming substrate.

15. A smoking article, said smoking article comprising:

a housing assembly; and

a heater as claimed in any one of claims 1 to 14; the heater is disposed within the housing assembly.

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