CN114190601A

CN114190601A - Heating element and low-temperature smoking set with same

Info

Publication number: CN114190601A
Application number: CN202010981947.0A
Authority: CN
Inventors: 刘建福; 钟科军; 郭小义; 尹新强; 易建华; 曾维林
Original assignee: China Tobacco Hunan Industrial Co Ltd
Current assignee: China Tobacco Hunan Industrial Co Ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2022-03-18

Abstract

The invention discloses a heating element and a low-temperature smoking set with the same. The heating element comprises a heating body and a heat conduction sleeve sleeved outside the heating body in a matching manner, wherein a plurality of strip-shaped protrusions extending along the axial direction are arranged on the heat conduction sleeve, and the front end of the heat conduction sleeve is used for extending into an object to be heated so as to transfer heat to the object to be heated through the heat conduction sleeve when the heating body is electrified. The heating element with the structure has the advantages of large heating area and difficulty in breaking.

Description

Heating element and low-temperature smoking set with same

Technical Field

The invention belongs to the technical field of smoking articles, and particularly relates to a heating element and a low-temperature smoking set with the same.

Background

The electronic smoking set on the market at present mainly comprises two types, such as an electronic cigarette which can smoke by evaporating tobacco tar and a low-temperature cigarette which can smoke by heating/distilling tobacco materials at low temperature (150-.

With the wide application of low-temperature cigarettes in overseas markets, low-temperature smoking set products are concerned by consumers, the mouthfeel of cigarettes is closely related to that of smoking sets, and when the heating element is set at the same temperature, the contact area between the heating element and tobacco shreds is increased, and the mouthfeel is better.

The smoking set core part is a heating element, the shapes of the heating elements used in the current market are two, namely a round rod shape and a sheet shape, the two heating elements respectively have different advantages and defects, the sheet-shaped heating element has the advantage of large heating area and the defect of easy breakage, the hair brush and the heating element are rubbed to cause the breakage of a heating body during the cleaning, the heating element is broken by shaking when the product falls on the ground, the round rod heating element has the advantages of difficult breakage and convenient cleaning, and the heating element has the defect of less heating area than the sheet shape.

Disclosure of Invention

The invention mainly aims to provide a heating element which is large in heating area and not easy to break and a low-temperature smoking set with the heating element.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the heating element comprises a heating body and a heat conduction sleeve sleeved outside the heating body in a matching mode, a plurality of strip-shaped protrusions extending along the axial direction are arranged on the heat conduction sleeve, and the front end of the heat conduction sleeve is used for extending into an object to be heated so that heat is transferred to the object to be heated through the heat conduction sleeve when the heating body is electrified.

Specifically, the heat-conducting sleeve is further provided with a plurality of axially extending strip-shaped holes, and the strip-shaped holes and the strip-shaped bulges are alternately distributed on the heat-conducting sleeve.

Specifically, the heating element comprises a substrate, a resistance circuit pattern printed on the surface of the substrate and an extraction electrode; and an extraction lead connected to the extraction electrode.

Specifically, the lead-out wire of the heating element is led out from the tail end of the heat-conducting sleeve.

Specifically, the heating element is a PTC heating element.

Specifically, install on the base after heat-generating body and heat conduction sleeve equipment, the wire of drawing of heat-generating body is followed the tail end of base is drawn forth.

Specifically, the front end of the heat conduction sleeve is sealed and is needle-shaped.

Specifically, the width of the strip-shaped protrusion gradually decreases from inside to outside.

Specifically, the heating element is cylindrical.

A low temperature smoking set comprises the heating element.

Specifically, the low temperature smoking set still includes the shell, be formed with the heating chamber that is used for holding tobacco products in the shell, the heating chamber includes first end and second end, first end is used for inserting tobacco products, the second end is the blind end, still is equipped with above-mentioned heating element and drive assembly in the shell, and the heating element passes the entering heating intracavity from the perforation of blind end, and drive assembly can drive heating element and follow the heating intracavity and withdraw from.

Compared with the prior art, the invention has the beneficial effects that: this application heating element's periphery is the heat conduction cover, the center is the heat-generating body that can generate heat, the heat conduction is used the material preparation that high temperature resistant and thermal conductivity are good for the cover, the heat that the heat-generating body work at center produced, can conduct to peripheral heat conduction cover fast, because of be equipped with the cell body on the pipe wall of heat conduction cover, this heating area that not only can increase whole heating element, and heating element is difficult for the fracture moreover, when using it for low temperature smoking set, can fully toast the cigarette, increase the pipe tobacco and toast the area, improve a cigarette energy release, make the smoking taste more fully enjoy the smoking process.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a heating element according to an embodiment of the present invention;

FIG. 2 is a schematic view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view in the direction C-C of FIG. 1;

FIG. 4 is an exploded view of a heating element provided by an embodiment of the present invention;

FIG. 5 is a schematic view of a low temperature smoking set according to an embodiment of the present invention;

FIG. 6 is an exploded view of a low temperature smoking article according to an embodiment of the present invention;

wherein: 1-a heating element; 2-heat conducting sleeve; 201-strip-shaped protrusions; 202-front end; 3-strip-shaped holes; 4-a base; 5-leading out a lead; 6-a housing; 601-bottom cover; 602-a top cover; 7-heating chamber; 8-a drive assembly; 801-electric machine; 802-lead screw; 803-a slider; 9-a battery; 10-a control panel; 11-control keys; 12-a connecting rod; 13-a scaffold; 14-a fixed seat; 15-a magnet; 16-a slide cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention makes some changes aiming at the heating element for improving the experience of products, in this few years, as the low-temperature tobacco is continuously expanded on the market, the receptivity of tobacco fans to novel tobacco is continuously increased, the products are continuously updated repeatedly, more superior products are expected to be made for a wide range of tobacco fans, the customers have advantages and disadvantages for the feedback of the low-temperature tobacco at present, and the users of the novel tobacco smoke fan are continuously increased from overseas sales data, which shows that the advantages of the novel tobacco are in place, the market acceptance is excellent, and the novel tobacco of the low-temperature tobacco is believed to lead the tobacco market in the future. Novel tobacco compares with traditional cigarette through the test, and the novel tobacco of suction is healthy a lot than the tradition to pass through heat-generating body low temperature heating because of novel tobacco operational environment to the pipe tobacco is toasted to the mode of temperature conduction, thereby the composition in the release tobacco, the smoking set can also be controlled in a flexible way, for example, the smoking set sets for not equidimension temperature, supplies the temperature parameter of the fan selection suitable own taste of cigarette. Smoking frequency is controlled by the programming of the smoking set, less smoking habits are developed, the more healthy product can be used by saving, the traditional cigarette is smoked by igniting the tobacco, the working temperature of the traditional cigarette is far higher than that of the novel tobacco, and the higher the temperature is, the more harmful substances are released.

The novel tobacco has the defects that the prior heating body is in a round bar shape, the diameter of the heating body cannot be too large in order to insert the tobacco conveniently, the smoking experience is directly influenced by the diameter of the heating body, the larger the diameter is, the larger the heating area is, meanwhile, the fuller the heat conduction and heat absorption of the cigarette are, the better the taste is, and otherwise, the worse the product experience is, the improvement is made aiming at the short version of the smoking set.

Referring to fig. 1 to 4, the heating element provided by the embodiment of the present invention includes a heating body 1 and a heat conducting sleeve 2 sleeved outside the heating body 1 in a matching manner, wherein a plurality of strip-shaped protrusions 201 extending along an axial direction are arranged on the heat conducting sleeve 2, and a front end 202 of the heat conducting sleeve 2 is used for extending into a cigarette to be heated, so as to transfer heat to the object to be heated through the heat conducting sleeve 2 when the heating body 1 is powered on.

This application heating element's periphery is heat conduction sleeve 2, the center is exothermic heat-generating body 1 that can generate heat, heat conduction sleeve 2 is with the good material preparation of high temperature resistant heat conductivility, the heat of the 1 work production of heat-generating body at center, can conduct to outlying heat conduction sleeve 2 fast, because of be equipped with a plurality of strip that extend along the axial on heat conduction sleeve 2 protruding 201, this can not only increase whole heating element's heat-generating area, and heating element intensity is than higher, compare the slice heating element, be difficult for the fracture more, when using it for the low temperature smoking set, can fully toast a cigarette, increase the pipe tobacco and toast the area, improve the release of cigarette energy, make the full cigarette process of enjoying of smoking taste more.

It is understood that, in order to further increase the heating area, the width of the strip-shaped protrusion 201 is designed to be gradually reduced from inside to outside along the radial direction of the heat conductive sleeve 2. In order to facilitate the insertion of the heating element into an object to be heated, such as a cigarette, the front end 202 of the heat conductive sleeve 2 is designed in a needle shape.

In addition, for making things convenient for the outside transmission of heat, still be equipped with a plurality of axially extended bar holes 3 on heat-conducting sleeve 2, bar holes 3 and bar are protruding 201 and alternate distribution on the lateral wall of heat-conducting sleeve 2, and the heat that heat-generating body 1 produced can be through the outside quick transmission of bar holes 3.

In this application embodiment, heat-generating body 1 adopts solid cylinder stick, and heat conduction cover 2 is cylindric body, can also adopt the barred body or the body of other cross sectional shapes certainly, no longer describes herein. The number of the strip-shaped protrusions 201 uniformly distributed on the heat conducting sleeve 2 can be three or four, so that the heat conducting sleeve 2 with the structure is in a prism shape.

In practical design, the heating element can further comprise a base 4, the heating element 1 and the heat conducting sleeve 2 are assembled and tightly mounted on the base 4, and the lead-out wires 5 of the heating element 1 are led out from the tail end of the base 4. In specific application, the heat-conducting sleeve 2 can be inserted into a slot on the base 4 in an interference manner, and a hole body for leading out the lead 5 to pass through is arranged at the bottom of the slot.

In some possible embodiments, the heat-generating body 1 includes a base, a resistance circuit pattern and an extraction electrode printed on a surface of the base, and an extraction lead 5 connected to the extraction electrode. The manufacturing process is usually to print the heating paste on a substrate such as ceramic, glass or metal according to a certain thickness and shape by adopting a thick film printing technology and then to sinter the substrate at a high temperature.

In other possible embodiments, the heating element 1 is directly made of PTC material, and then the heating element 1 and the heat conducting sleeve 2 are combined into a whole. The heating body 1 in the embodiment of the application adopts the PTC heating element, and the PTC heating element has the advantages of small thermal resistance and high heat exchange efficiency, so that the electric heater is automatic in constant temperature and power saving, can realize constant temperature heating of an object to be heated, and cannot generate the phenomenon of 'red' on the surface of an electric heating tube heater, thereby causing potential safety hazards such as scalding and fire disasters.

Referring to fig. 5 and 6, the embodiment of the present invention further provides a low temperature smoking set using the heating element of the above embodiment, the low temperature smoking set includes a housing 6, a heating cavity 7 for accommodating tobacco products such as cigarettes is formed in the housing 6, the heating cavity 7 includes a first end and a second end, the first end is used for inserting the tobacco products, the second end is a closed end, the housing 6 is further provided with the above heating element, and a driving assembly 8, the heating element penetrates into the heating cavity 7 from a perforation of the closed end, and the driving assembly 8 can drive the heating element to withdraw from the heating cavity 7. The stroke of the heating element retraction is generally set to be more than or equal to the length of the heating element extending into the heating cavity 7, so that the complete heating cavity 7 can be exposed after the heating element is retracted to the maximum stroke, and the heating cavity 7 can be cleaned without dead angles due to the fact that the heating element is not blocked after the brush is inserted into the heating cavity 7.

In this embodiment, a battery 9 and a control board 10 are further disposed in the housing 6, the control board 10 is electrically connected to the battery 9, the lead-out wire 5 of the heating element and the driving assembly 8, and the housing 6 is provided with a control button 11 electrically connected to the control board 10.

When the smoking set is used, tobacco products such as cigarettes are inserted into the heating cavity 7 from the first end of the heating cavity 7; correspondingly, the heating element pierces into the tobacco product, and by pressing the heating key of the control keys 11, the control panel 10 controls the battery 9 to supply power to the heating element, so as to heat the tobacco product to generate smoke for the user to smoke; after the user finishes sucking, by pressing a driving key in the control key 11, the control panel 10 generates a control instruction to the driving assembly 8, the driving assembly 8 receives the control instruction to drive the heating element to move back relative to the heating cavity 7 and withdraw from the heating cavity 7, in the process of returning, tobacco carbide bonded on the heating element moves together with the cigarette relative to the heating element to separate from the heating element, the residues on the heating element are few, and particularly when the heating element is matched and penetrates through a through hole in the closed end, the tobacco carbide bonded on the heating element can be scraped off by the side wall of the through hole in the moving process, so that the residues on the heating element can be further reduced.

It should be noted that, in practical design, the driving assembly 8 includes a motor 801, a lead screw 802, and a slider 803 sleeved outside the lead screw 802, the lead screw 802 is connected to a rotating shaft of the motor 801, and the slider 803 is slidably mounted on a slide rail in the housing 6 and is connected to the heating element through the connecting rod 12. In this embodiment, the motor 801 is connected to the control board 10 through a connecting wire, the motor 801 drives the screw rod 802 to rotate, the screw rod 802 transmits power to the slider 803 spirally connected thereto, the slider 803 is driven to slide along the slide rail, and the heating element is further driven to move axially back and forth, so that the heating element performs a retraction motion relative to the heating cavity 7. Of course, the driving assembly 8 may also adopt other existing linear driving mechanisms such as an oil cylinder, an air cylinder or a linear motor, which will not be described in detail herein.

It is conceivable that, in order to facilitate the assembly and disassembly of the heating element and other components, a bracket 13 is further provided in the housing 6, the heating chamber 7 is formed at the upper end of the bracket 13, a fixed seat 14 is slidably mounted at the lower end of the bracket 13, and the base 4 of the heating element is fixedly mounted on the fixed seat 14 and connected with the sliding block 803 through a connecting rod 12. The housing 6 comprises a bottom cover 601 with an open top and a top cover 602 covering the bottom cover 601, and the top cover 602 is provided with a cigarette insertion port communicated with the first end of the heating cavity 7. When the parts such as the heating element need to be replaced or cleaned, the bracket 13 can be taken out from the bottom cover 601 by only opening the top cover 602. After the replacement is completed, the bracket 13 is communicated with the heating element and is arranged in the bottom cover 601 again, the top cover 602 is covered to fix all parts, and the operation is convenient and quick.

As a preferable scheme of the present invention, in order to facilitate the opening of the top cover 602, magnets 15 are disposed on opposite sides of the top cover 602 and the bottom cover 601, and after the top cover 602 and the bottom cover 601 are closed, the magnets 15 provide an attractive force to achieve the attractive fixation. Of course, the top cover 602 and the bottom cover 601 may also be fixed by means of a snap, a lock, and the like, which will not be described herein again.

In addition, a sliding cover 16 for shielding the smoke insertion opening can be arranged on the top cover 602 in a sliding mode, and the smoke insertion opening can be shielded or exposed by sliding the sliding cover 16, so that dust is prevented from entering the interior of the smoking set from the smoke insertion opening.

As a preferred scheme of the invention, the driving assembly 8 is connected with the control panel 10 through a screw, an opening is arranged on the side wall of the bottom cover 601, a light guide column is embedded in the opening, so that light on the control panel 10 can realize man-machine exchange through the light guide column according to working requirements, and a through hole for placing the control key 11 is also arranged on the bottom cover 601, so that the control key 11 drives the control panel 10 to realize man-machine conversation.

The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.

Claims

1. The heating element is characterized by comprising a heating body (1) and a heat conduction sleeve (2) sleeved outside the heating body (1) in a matching mode, wherein a plurality of strip-shaped protrusions (201) extending along the axial direction are arranged on the heat conduction sleeve (2), and the front end of the heat conduction sleeve (2) is used for extending into an object to be heated so as to transfer heat to the object to be heated through the heat conduction sleeve (2) when the heating body (1) is electrified.

2. A heating element as claimed in claim 1, wherein: the heat conduction sleeve (2) is further provided with a plurality of axially extending strip-shaped holes (3), and the strip-shaped holes (3) and the strip-shaped protrusions (201) are alternately distributed on the heat conduction sleeve (2).

3. A heating element as claimed in claim 1, wherein: the heating body (1) comprises a substrate, a resistance circuit pattern printed on the surface of the substrate and an extraction electrode; and a lead-out wire (5) connected to the lead-out electrode.

4. A heating element as claimed in claim 3, wherein: and the lead-out wire (5) of the heating body (1) is led out from the tail end of the heat conducting sleeve (2).

5. A heating element as claimed in claim 1, wherein: the heating element (1) is a PTC heating element.

6. A heating element as claimed in any one of claims 1 to 5, wherein: the heating element (1) and the heat conducting sleeve (2) are assembled and then installed on the base (4), and the leading-out wire (5) of the heating element (1) is led out from the tail end of the base (4).

7. A heating element as claimed in any one of claims 1 to 5, wherein: the front end of the heat conduction sleeve (2) is closed and is needle-shaped.

8. A heating element as claimed in any one of claims 1 to 5, wherein: the width of the strip-shaped protrusion (201) is gradually reduced from inside to outside.

9. A heating element as claimed in any one of claims 1 to 5, wherein: the heating body (1) is cylindrical.

10. A low temperature smoking set, its characterized in that: comprising a heating element according to any of claims 1-9.