CN112107034A

CN112107034A - Electronic cigarette and heating mechanism

Info

Publication number: CN112107034A
Application number: CN202011098752.8A
Authority: CN
Inventors: 彭世键
Original assignee: Shenzhen Aiyi Technology Research Co Ltd
Current assignee: Shenzhen Aiyi Technology Research Co Ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2020-12-22

Abstract

The application provides an electron cigarette and heating mechanism. Foretell heating mechanism includes heating element, and heating element includes heating base member, first electrically conductive pin and the electrically conductive pin of second, and the air guide passageway has been seted up to the heating base member, keeps away a groove and spread groove intercommunication, and first electrically conductive pin is connected with the one end of heating base member, and the electrically conductive pin of second is located respectively keeps away a groove and spread groove, and the electrically conductive pin of second passes through the spread groove and is connected with the other end of heating base member. When the first conductive pin and the second conductive pin are electrified, the heat of the heating substrate directly acts on the cigarette so that the heating substrate heats the cigarette; in addition, the heat part of the heating base body is heated and acted on the air flow passing through the air guide channel in a heat radiation mode, so that the air flow is heated before being mixed with the smoke, the air flow passing through the air guide channel is rapidly diffused and mixed with the smoke, the cigarette is heated without dead angles, and the heating effect of the electronic cigarette is improved.

Description

Electronic cigarette and heating mechanism

Technical Field

The invention relates to the technical field of electronic cigarettes, in particular to an electronic cigarette and a heating mechanism.

Background

The electronic cigarette is an electronic product simulating a cigarette, and has the same appearance as the cigarette. When the electronic cigarette is used, the electronic cigarette can also generate smoke, and a user can feel smoke smell after inhaling the electronic cigarette in the using process. That is to say, the electronic cigarette converts nicotine and the like into smoke vapor by means of atomization, so that a user can experience the effect of smoking the cigarette.

The heating mechanism of the traditional electronic cigarette is characterized in that a conducting strip is formed on a heat conductor of the heating mechanism of the traditional electronic cigarette through a printing process, an aluminum oxide layer is coated on the surface of the conducting strip and is sintered, so that the aluminum oxide layer is firmly formed on the conducting strip, and after the heating mechanism is used for a long time, the heating mechanism is repeatedly disassembled and assembled, the conducting strip is easy to rub and damage, and the heating performance of the heating mechanism is poor or even the; in addition, the uniformity of heating the cigarette by the conducting strips is poor.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the electronic cigarette and the heating mechanism which solve the problems of poor heating performance, even failure and poor heating uniformity of the heating mechanism.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a heating mechanism, heating mechanism includes heating element, heating element includes heating base member, first electrically conductive pin and the electrically conductive pin of second, the wind-guiding passageway has been seted up to the heating base member, keep away a groove and spread groove, keep away the groove with the spread groove intercommunication, first electrically conductive pin with the one end of heating base member is connected, the electrically conductive pin of second is located respectively keep away the groove with in the spread groove, the electrically conductive pin of second passes through the spread groove with the other end of heating base member is connected, just the electrically conductive pin of second with there is the clearance between the inner wall of keeping away the groove, the heating base member is used for generating heat when the circular telegram.

In one embodiment, the wind guide channel is a wind guide hole or a wind guide groove.

In one embodiment, the heating mechanism further comprises an insulating sleeve, the insulating sleeve defines a receiving groove, and the heating substrate is completely located in the receiving groove and connected to the insulating sleeve.

In one embodiment, the heating substrate is removably attached to the insulating sleeve.

In one embodiment, a first boss and a second boss are oppositely arranged on the outer wall of the heating base body, a first screwing groove and a second screwing groove are respectively formed in one end of the heat insulation sleeve, the first boss is located in the first screwing groove, and the second boss is located in the second screwing groove.

In one embodiment, the first screw-in groove includes a first socket and a first screw-in groove body communicating with each other, and the first boss is adapted to be screwed into the first screw-in groove body in a predetermined direction when the first boss is inserted into the first socket.

In one embodiment, the second screw-in groove includes a second socket and a second screw-in groove body communicating with each other, and the second boss is configured to screw into the second screw-in groove body in the predetermined direction when the second boss is inserted into the second socket.

In one embodiment, the heating substrate is coaxially disposed with the insulating sleeve, and the axial length of the heating substrate is smaller than the axial length of the insulating sleeve.

In one embodiment, the avoiding groove is opened on the side wall of the heating substrate.

In one embodiment, the heating mechanism further comprises an insulating portion formed at least within the gap.

In one embodiment, a heating groove is formed in an end of the heating base body, which faces away from the first conductive pin.

An electron cigarette, includes cigarette and above-mentioned any embodiment heating mechanism, the heating base member is used for heating cigarette props up.

Compared with the prior art, the invention has at least the following advantages:

1. the first conductive pin can be externally connected with the anode of a power supply, the second conductive pin can be externally connected with the cathode of the power supply, the first conductive pin is connected with one end of the heating base body, the second conductive pin is connected with the other end of the heating base body, so that the first conductive pin and the second conductive pin are respectively and electrically connected with two ends of the heating base body, current flows at two ends of the heating base body, the whole part of the heating base body is conductive and can generate heat, and meanwhile, the heating of the heating base body is more uniform, so that the heating base body has a better heating effect on cigarettes;

2. when the first conductive pin and the second conductive pin are electrified, the heat of the heating base body directly acts on the cigarette, so that the heating base body heats the cigarette, the cigarette emits smoke, and the smoke is mixed with the air flow of the air guide channel and sucked into the oral cavity of a smoker; in addition, the heat part of the heating substrate is heated by means of heat radiation and acts on the air flow passing through the air guide channel, so that the air flow is heated before being mixed with the smoke, the air flow passing through the air guide channel is rapidly diffused and mixed with the smoke, dead-angle-free heating of cigarettes is realized, and the heating effect of the electronic cigarette is improved;

3. according to the invention, the heating substrate is uniformly heated after being electrified, heavy metal does not exist at the contact part of the heating substrate and the cigarette, the traditional heating mode of the conducting strip formed by a printing process is avoided, the problem that the heating mechanism has poor heating performance and even fails in the use process is avoided, and the use reliability of the electronic cigarette is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Figure 1 is a schematic diagram of an electronic cigarette in one embodiment;

figure 2 is a cross-sectional view of the e-cigarette of figure 1;

figure 3 is a schematic view of a heating mechanism of the e-cigarette of figure 1;

FIG. 4 is a cross-sectional view of the heating mechanism of FIG. 3;

FIG. 5 is a schematic view of a heating assembly of the heating mechanism of FIG. 4;

FIG. 6 is an exploded view of the heating mechanism shown in FIG. 3;

FIG. 7 is an exploded view of the heating mechanism of FIG. 3 from another perspective;

figure 8 is a schematic view of a heating mechanism of an e-cigarette in another embodiment;

fig. 9 is a flowchart of a method for manufacturing an electronic cigarette according to an embodiment.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

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 also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, an electronic cigarette 10 of an embodiment includes a cigarette 100 and a heating mechanism 200. The heating mechanism 200 includes a heating assembly 210 and an insulating sleeve 220. As shown in fig. 3-5, the heating assembly 210 includes a heating base 212, a first conductive lead 214, and a second conductive lead 216. The heating substrate 212 is provided with an air guide channel 212a, a avoiding groove 212b and a connecting groove 212c, the avoiding groove 212b is communicated with the connecting groove 212c, and the heating substrate 212 is used for heating the cigarette 100. Specifically, the heating substrate 212 abuts against the cigarette 100 to heat the cigarette 100. The first conductive pin 214 is connected to one end of the heating substrate 212, the second conductive pin 216 is respectively located in the avoiding groove 212b and the connecting groove 212c, and the second conductive pin 216 is connected to the other end of the heating substrate 212 through the connecting groove 212c, so that two ends of the heating mechanism 200 are respectively electrically connected to the first conductive pin 214 and the second conductive pin 216.

As shown in fig. 5 and 6, in this embodiment, a first end of the heating substrate 212 is connected to the first conductive pin 214, and a second end of the heating substrate 212 is connected to the second conductive pin 216. The connecting groove 212c is opened on the heating base 212 at a position adjacent to the end face of the cigarette 100. A gap 2162 is formed between the second conductive pin 216 and the inner wall of the avoiding groove 212b to prevent the second conductive pin 216 from contacting and conducting with the inner wall of the avoiding groove 212 b. The heating substrate 212 is used to generate heat when energized. The heat insulation sleeve 220 is provided with a receiving groove 222, and the heating substrate 212 is completely located in the receiving groove 222 and connected with the heat insulation sleeve 220, so as to prevent heat dissipation of the heating substrate 212, and enable the heating substrate 212 to better heat the cigarette 100.

In the above-mentioned heating mechanism 200, the first conductive pin 214 may be externally connected to the positive electrode of the power supply, and the second conductive pin 216 may be externally connected to the negative electrode of the power supply, because the first conductive pin 214 is connected to one end of the heating substrate 212, and the second conductive pin 216 is connected to the other end of the heating substrate 212, the first conductive pin 214 and the second conductive pin 216 are respectively electrically connected to two ends of the heating substrate 212, and the current flows at two ends of the heating substrate 212, so that the whole part of the heating substrate 212 is electrically conductive and generates heat, and the heating of the heating substrate 212 is more uniform, so that the heating substrate 212 has a better heating effect on the cigarette 100. When the first conductive pin 214 and the second conductive pin 216 are powered on, the heat of the heating substrate 212 directly acts on the cigarette 100, so that the heating substrate 212 heats the cigarette 100, the cigarette 100 emits smoke, and the smoke is mixed with the airflow of the air guide channel 212a and inhaled into the oral cavity of a smoker; in addition, the heat part of the heating substrate 212 heats the air flow passing through the air guide channel 212a in a heat radiation mode, so that the air flow is heated before being mixed with the smoke, the air flow passing through the air guide channel 212a is rapidly diffused and mixed with the smoke, the cigarette 100 is heated without dead angles, and the heating effect of the electronic cigarette 10 is improved.

Because the heating substrate 212 is completely located in the accommodating groove 222 and connected to the heat insulating sleeve 220, heat loss caused by direct exposure of the heating substrate 212 to the outside is avoided, and the heat of the heating substrate 212 is further heated and applied to the cigarette 100, thereby improving the heating effect of the electronic cigarette 10. The heating substrate 212 is completely positioned in the accommodating groove 222 and connected with the heat insulation sleeve 220, the heating substrate 212 is uniformly heated after being electrified, heavy metal does not exist at the contact part of the heating substrate 212 and the cigarette 100, the problem that the heating mechanism 200 is poor in heating performance and even fails in the using process in the traditional heating mode of a conductive sheet formed by a printing process is solved, and the using reliability of the electronic cigarette 10 is improved. The second conductive pin 216 is connected to the end of the heating base 212 through the connecting groove 212c, so that the second conductive pin 216 has a large positioning space when being connected to the heating base 212.

As shown in fig. 1 and fig. 2, the electronic cigarette 10 further includes a housing 300, the housing 300 defines a receiving cavity 310, and the heat insulating sleeve 220 is located in the receiving cavity 310 and connected to the housing 300, so that the heating mechanism 200 is installed in the housing 300. Referring to fig. 3, the heat insulation sleeve 220 has a heat insulation function, so that the heat of the heating substrate 212 is not greatly conducted to the housing 300 to cause the housing 300 to be overheated, and the heat loss of the heating substrate 212 is reduced, thereby achieving an energy-saving effect. In this embodiment, the housing 300 further defines an airflow channel communicating with the accommodating cavity 310, so that the airflow in the airflow channel passes through the air guiding channel 212 a.

In order to provide the heat insulating sleeve 220 with good heat insulating performance and avoid the presence of toxic and harmful substances such as heavy metals during use, in an embodiment, the heat insulating sleeve 220 may be a ceramic sleeve or a vacuum sleeve, so that the heat insulating sleeve 220 has good heat insulating performance and avoids the presence of toxic and harmful substances such as heavy metals during use.

As shown in fig. 4, in one embodiment, the material of the heat insulating sleeve 220 is a heat conductive ceramic or other heat conductive material, so that the heat insulating sleeve 220 has a better heat conductive performance, and the material of the heat insulating sleeve 220 is closer to that of the heating substrate 212, thereby tightly connecting the heat insulating sleeve 220 with the heating substrate 212.

As shown in fig. 4 and 6, to improve the convenience of the e-cigarette 10, in one embodiment, the heating substrate 212 is detachably connected to the heat insulation sleeve 220, so that the heating substrate 212 can be periodically maintained or replaced, thereby improving the convenience of the e-cigarette 10.

As shown in fig. 6 and 7, specifically, a first boss 2122 and a second boss 2124 are oppositely arranged on the outer wall of the heating substrate 212, one end of the heat insulation sleeve 220 is respectively provided with a first screwed groove 223 and a second screwed groove 225, the first boss 2122 is located in the first screwed groove 223, and the second boss 2124 is located in the second screwed groove 225, so that the heating substrate 212 and the heat insulation sleeve 220 are detachably connected, and the heating substrate 212 and the heat insulation sleeve 220 are quickly disassembled and assembled.

As shown in fig. 6 and 7, further, the first screw-in groove 223 includes a first insertion opening 223a and a first screw-in groove body 223b which are communicated with each other, and the first boss 2122 is used for screwing into the first screw-in groove body 223b in a predetermined direction when the first insertion opening 223a is formed, so that the first boss 2122 is screwed into the first screw-in groove 223. In this embodiment, the first screw groove 223 is L-shaped, so that the first boss 2122 is inserted into a predetermined position through the first insertion hole 223a and then screwed into the first screw groove main body 223b, thereby securely connecting the first boss 2122 to the heat insulating jacket 220.

As shown in fig. 6 and 7, further, the second screw-in groove 225 includes a second socket 225a and a second screw-in groove body 225b communicating with each other, and the second boss 2124 is adapted to be screwed into the second screw-in groove body 225b in a predetermined direction when the second socket 225a is received, so that the second boss 2124 is screwed into the second screw-in groove 225. In this embodiment, the second screw groove 225 is L-shaped, so that the second boss 2124 can be inserted into a predetermined position through the second insertion hole 225a and then screwed into the second screw groove body 225b, thereby securely connecting the second boss 2124 to the heat insulating jacket 220. The direction in which the first boss 2122 is screwed into the first screw-in groove body 223b is the same as the direction in which the second boss 2124 is screwed into the second screw-in groove body 225 b. The first socket 223a and the second socket 225a are both opened on the same end surface of the heat insulation sleeve 220, which facilitates the quick assembly and disassembly of the heating substrate 212 on the heat insulation sleeve 220.

As shown in FIG. 4, in one embodiment, the heating substrate 212 is disposed coaxially with the insulating sleeve 220, and the axial length of the heating substrate 212 is less than the axial length of the insulating sleeve 220, such that the cigarette 100 is partially inserted into the insulating sleeve 220 and abuts the heating substrate 212, thereby increasing the reliability of the heating substrate 212 in heating the cigarette 100. In this embodiment, the first end of the heating base 212 is flush with one end of the heat insulating sleeve 220, and the second end of the heating base 212 is spaced from the other end of the heat insulating sleeve 220, so that the axial length of the heating base 212 is smaller than the axial length of the heat insulating sleeve 220, and the cigarette 100 is inserted into the heat insulating sleeve 220 and reliably abuts against the second end of the heating base 212, thereby reliably heating the cigarette 100 by the heating base 212.

In other embodiments, the connection between the heating substrate 212 and the heat insulating sleeve 220 is not limited to a detachable connection that is inserted and rotated, but may be a detachable connection such as a screw connection or a snap connection.

Of course, in other embodiments, the heating substrate 212 and the thermal sleeve 220 may be connected in a non-detachable manner, not only in a detachable manner. That is, in other embodiments, the first boss 2122, the second boss 2124, the first screw groove 223, and the second screw groove 225 may be omitted.

In one embodiment, the heating mechanism 200 further comprises a heat conducting connection part filled between the inner wall of the heat insulating sleeve 220 and the outer wall of the heating substrate 212, so that the inner wall of the heat insulating sleeve 220 is reliably connected to the heating substrate 212 through the heat conducting connection part, and the heat conducting performance between the heat insulating sleeve 220 and the heating substrate 212 is improved. In this embodiment, the material of the heat-conducting connecting portion is the same as that of the heat-insulating sleeve 220, and is ceramic or other heat-conducting materials, so that the heat-conducting connecting portion is fastened to the heat-insulating sleeve 220. In other embodiments, the material of the heat-conducting connection portion may also be the same as that of the heating substrate 212, and both are made of an electrically conductive heating ceramic material, so that the heat-conducting connection portion is tightly connected with the heating substrate 212.

In one embodiment, the heat conductive connection, the heat insulating sleeve 220 and the heating element 210 are integrally formed, such that the heat conductive connection is preferably filled between the inner wall of the heat insulating sleeve 220 and the outer wall of the heating substrate 212. In the present embodiment, the heat conducting connection portion is filled between the inner wall of the heat insulation sleeve 220 and the outer wall of the heating substrate 212 through a glue filling process. It is understood that in other embodiments, the conductive connection may be omitted and the heat insulating sleeve 220 may be molded directly to the outer wall of the heating substrate 212, such that the heat insulating sleeve 220 is securely connected to the heating substrate 212. In one embodiment, the thermal sleeve 220 is injection molded to the outer wall of the heating substrate 212.

It is understood that in other embodiments, the insulating sleeve 220 may be omitted. In one embodiment, the heating assembly 210 is mounted directly to the inner wall of the housing 300. In the present embodiment, the housing 300 has a heat insulation property, so as to prevent the heating element 210 from dissipating heat greatly. In order to better reduce the heat dissipation of the heating assembly 210, further, the inner wall of the housing 300 is coated with a heat insulating layer, so that the housing 300 has better heat insulating performance.

In one embodiment, the heating base 212, the first conductive pin 214 and the second conductive pin 216 are integrally formed, so that the heating base 212, the first conductive pin 214 and the second conductive pin 216 form an integrated structure as one of the components of the heating assembly 210, the number of the components of the heating mechanism 200 is reduced, the structure of the heating assembly 210 is simpler and more compact, the heating base 212 is firmly connected with the first conductive pin 214 and the second conductive pin 216, and the heating base 212 is reliably electrically connected with the first conductive pin 214 and the second conductive pin 216, thereby improving the reliability of the use of the heating mechanism 200.

In this embodiment, the heating substrate 212, the first conductive pin 214 and the second conductive pin 216 are integrally formed by an injection molding process, so that the first conductive pin 214 and the second conductive pin 216 are partially covered in the heating substrate 212, and further, the first conductive pin 214 and the second conductive pin 216 are electrically connected to the heating substrate 212, so that the structure in which the heating substrate 212, the first conductive pin 214 and the second conductive pin 216 are integrally formed is simple and easy to implement. During preparation, the first conductive pin 214 and the second conductive pin 216 are relatively positioned in a mold; and then injecting the slurry into the mold through a glue filling process, so that the heating substrate 212, the first conductive pins 214 and the second conductive pins 216 are integrally formed through an injection molding process. It is understood that in other embodiments, the heating substrate 212, the first conductive pin 214 and the second conductive pin 216 are not limited to being integrally formed by an injection molding process, and both ends of the heating substrate 212 may be welded to the first conductive pin 214 and the second conductive pin 216, respectively.

In one embodiment, the heating substrate 212 is an electrically conductive heating ceramic, so that the heating substrate 212 has a good thermal conductivity, and the heating substrate 212 does not contain toxic and harmful substances such as heavy metals during the thermal conductivity. It is understood that in other embodiments, the heating substrate 212 is not limited to being a conductive heat-generating ceramic, but may be a conductive heat-generating metal.

The heating mechanism 200 has the advantages that the cigarette 100 is effectively heated by the heating base body 212, meanwhile, the airflow passing through the air guide channel 212a is heated to form hot airflow, the hot airflow impacts tobacco leaves or other products in the cigarette 100 from inside to outside and is subjected to penetration heating without dead corners, meanwhile, under the protection of the peripheral heat insulation sleeve 220, the heat loss of the heating base body 212 is greatly reduced, so that the cigarette 100 is heated by the contact conduction of the heating base body 212 and heated by the hot airflow, and the effect of double rapid heating is realized.

As shown in fig. 6, in one embodiment, the opening of the connecting groove 212c is larger than the opening of the avoiding groove 212b, so that the heating substrate 212 is better formed on the second conductive pin 216, and the second conductive pin 216 is better positioned, so that the heating substrate 212, the first conductive pin 214 and the second conductive pin 216 are better formed in one piece. Specifically, the inner wall of the connection groove 212c has a spherical shape. The inner wall of the avoiding groove 212b is cylindrical.

As shown in fig. 6, the second conductive pin 216 includes a conductive pin body 216a and a bent portion 216b connected to each other, the conductive pin body 216a is located in the avoiding groove 212b, the bent portion 216b is located in the connecting groove 212c, and a portion of the bent portion 216b covers the heating substrate 212, so that the conductive pin body 216a is electrically connected to the heating substrate 212 through the bent portion 216b, and the second conductive pin 216 is further electrically connected to the heating substrate 212. In this embodiment, the conductive lead body 216a and the bent portion 216b are integrally formed, but in other embodiments, the conductive lead body 216a and the bent portion 216b may be formed separately and welded together. Because the opening of the connecting groove 212c is larger than the opening of the avoiding groove 212b, the conductive pin body 216a is located in the avoiding groove 212b, and the bending part 216b is located in the connecting groove 212c, so that the bending part 216b has a larger positioning space, the difficulty of forming the heating substrate 212 and connecting the bending part 216b is simplified, and the bending part 216b is better connected to the end of the heating substrate 212.

As shown in fig. 6, in the present embodiment, the bent portion 216b has a 90 ° bent angle, so that the two ends of the bent portion 216b are better connected to the conductive pin body 216a and the end of the heating substrate 212. It is understood that in other embodiments, the bending angle of the bent portion 216b is not limited to 90 °, and may be 80 ° or 110 °.

As shown in fig. 6, in one embodiment, the conductive pin body 216a and the first conductive pin 214 are disposed in parallel, so that the conductive pin body 216a and the first conductive pin 214 have a predetermined distance, thereby preventing the conductive pin body 216a and the first conductive pin 214 from being contacted to conduct electricity and being unable to conduct electricity at two ends of the heating substrate 212, and improving the heating reliability of the heating mechanism 200.

As shown in fig. 6, the air guiding channel 212a is an air guiding hole or an air guiding groove, so that the air guiding channel 212a has an air flow guiding function. In the present embodiment, the air guiding channel 212a is an air guiding hole. In other embodiments, the wind guiding channel 212a may be a wind guiding groove, and the wind guiding channel 212a is opened on the peripheral wall of the heating substrate 212.

As shown in fig. 6, in one embodiment, the number of the wind guide channels 212a is multiple, and the wind guide channels 212a are distributed at intervals, so that the heating substrate 212 has a good wind guide effect, and meanwhile, the heat at each position of the heating substrate 212 can quickly and uniformly heat the airflow. In the present embodiment, the plurality of air guiding channels 212a are distributed in a circular array. It is understood that in other embodiments, the plurality of air guiding channels 212a are not limited to be distributed in a rectangular array.

As shown in fig. 6, in order to provide a better heating effect for heating substrate 212 and avoid local overheating of heating substrate 212, in one embodiment, each air guiding channel 212a is opened along the axial direction of heating substrate 212, so that the heat of heating substrate 212 is uniformly applied to the air flow passing through air guiding channel 212a, and heating substrate 212 has a better heating effect and avoids local overheating of heating substrate 212.

As shown in fig. 6, in order to make the difficulty of processing the avoiding groove 212b low, in one embodiment, the avoiding groove 212b is formed on the sidewall of the heating substrate 212, so that the difficulty of processing the avoiding groove 212b is low, and the second conductive pin 216 is accommodated in the avoiding groove 212b, thereby preventing the heating substrate 212 and the heat insulating sleeve 220 from being worn away from each other during the assembling and disassembling process. It is understood that in other embodiments, the avoiding groove 212b is not limited to be formed on the sidewall of the heating substrate 212, but may be formed in the center or other positions of the heating substrate 212. In the present embodiment, the housing groove is formed in the outer peripheral wall of the heating base 212, so that the housing groove is less difficult to process and the structure of the heating mechanism 200 is more compact.

As shown in FIG. 6, in one embodiment, heating matrix 212 is cylindrical, making the structure of heating matrix 212 simpler and easier to manufacture. Further, the avoiding groove 212b extends along the axial direction of the heating substrate 212, and the conductive pin body 216a is accommodated in the accommodating groove, so that the structure of the heating mechanism 200 is more compact, and the heating mechanism can be better placed in the accommodating groove 222, and meanwhile, the abrasion between the second conductive pin 216 and the heat insulating sleeve 220 in the assembling and disassembling process is reduced.

As shown in fig. 5, in one embodiment, the heating mechanism 200 further includes an insulating portion 230, which is at least formed in the gap 2162, and prevents the second conductive pin 216 located in the avoiding groove 212b from directly contacting the heating substrate 212 to conduct electricity, so that the second conductive pin 216 is reliably conducted to the end of the heating substrate 212 through the avoiding groove 212b, and the two ends of the heating substrate 212 are respectively connected to the first conductive pin 214 and the second conductive pin 216. Further, the insulating portion is filled in the avoiding groove 212b, so that the problem that the second conductive pin 216 in the avoiding groove 212b is in direct contact with the heating substrate 212 for conduction is better avoided, conductive heating at two ends of the heating substrate 212 is realized, and the second conductive pin 216 is more firmly installed and positioned. It is understood that in other embodiments, the insulating portion completely covers the second conductive pin 216, so that the second conductive pin 216 is reliably conducted to all positions on the end portion of the heating substrate 212 except for the end portion of the heating substrate 212 connected to the bent portion 216b through the avoiding groove 212b, the second conductive pin 216 is only conducted at the position where the bent portion 216b is connected to the heating substrate 212, and the other positions are insulated, so as to reliably achieve conductive heating at two ends of the heating substrate 212, and simultaneously avoid the problem of short circuit of the second conductive pin 216.

As shown in fig. 5, in one embodiment, the insulating portion 200 is made of glass cement or quartz, so that the insulating portion 200 has better heat resistance and insulating property, and thus the insulating portion 200 has better thermal stability. In this embodiment, the insulating portion 200 is made of glass cement. In other embodiments, the insulating portion 200 may also be another insulating colloid.

As shown in fig. 8, in another embodiment, a heating groove 212d is opened at an end of the heating substrate 212 away from the first conductive pin 214, so that the cigarette 100 can be further inserted into the heating groove 212d when being inserted into the heat insulating sleeve 220, the cigarette 100 is better abutted against the heating substrate 212, and the heating substrate 212 is abutted against the bottom of the cigarette 100, so that the heating substrate 212 can completely wrap the bottom of the cigarette 100, the heat of the heating substrate 212 is better conducted to the cigarette 100, the heat loss of the heating substrate 212 is smaller, and the heating substrate 212 has better sealing property and heat conductivity, thereby enabling the electronic cigarette 10 to be more energy-saving and durable. In this embodiment, the depth of the heating groove 212d is 1mm to 2 mm. Specifically, the depth of the heating groove 212d is 2 mm.

As shown in fig. 8, in order to heat the cigarettes 100 better by the heating mechanism 200, the heating groove 212d is communicated with the air guide passage 212a, so that the air flow heated by the air guide passage 212a directly acts on the cigarettes 100, and the heating groove 212d is in contact with the cigarettes 100 to heat the cigarettes 100 better by the heating mechanism 200.

In this embodiment, the heating slot 212d is adapted to the shape of the cigarette 100, so that the heating base 212 can better wrap the bottom of the cigarette 100. In fact, there is still a gap between the cigarette 100 and the heating groove 212d, so that the airflow portion of the air guiding channel 212a acts between the cigarette 100 and the inner peripheral wall of the heating groove 212 d.

However, if the difference between the inner diameter of the heating groove 212d and the outer diameter of the cigarette 100 is large and the gap between the inner peripheral wall of the heating groove 212d and the cigarette 100 is small, the heat of the inner peripheral wall of the heating groove 212d is weaker to act on the cigarette 100; if the difference between the inner diameter of the heating slot 212d and the outer diameter of the cigarette 100 is small, although the heat of the inner peripheral wall of the heating slot 212d is better conducted to the cigarette 100, the airflow cannot heat the portion of the cigarette 100 adjacent to the inner peripheral wall of the heating slot 212d well, which is not favorable for uniformly heating the cigarette 100. Therefore, the difference between the inner diameter of the heating slot 212d and the outer diameter of the cigarette 100 is too small or too large to allow the heating substrate 212 to heat the cigarette 100 well. In order to avoid the problem that the difference between the inner diameter of the heating groove 212d and the outer diameter of the cigarette 100 is too large or too small to enable the heating matrix 212 to heat the cigarette 100 well, further, the inner diameter of the heating groove 212d is larger than or equal to the outer diameter of the cigarette 100, so that the outer wall of the cigarette 100 is tightly attached to the inner wall of the heating groove 212d, the heating matrix 212 can also be provided with a spiral groove communicated with the heating groove 212d, part of the spiral groove is positioned on the inner peripheral wall of the heating groove 212d, and meanwhile, the air flow part passing through the air guide channel 212a flows out through the spiral groove, so that the air flow heated by the air guide channel 212a can act on the cigarette 100. In this embodiment, the spiral groove extends around the axial direction of the heating base 212, and one end of the spiral groove extends to the end surface of the heating base 212, which is provided with the heating groove 212d, and the other end of the spiral groove extends to the bottom of the heating groove 212d, so that the airflow of the air guide channel 212a can better act on the cigarette 100, and meanwhile, the heat of the inner wall of the heating groove 212d is conducted to the cigarette 100.

As shown in fig. 8, the heating mechanism 200 further includes a temperature sensing element 240, and the temperature sensing element 240 is used for detecting the temperature of the heating substrate 212. The temperature sensing element 240 is at least partially covered in the heating substrate 212, so that the temperature of the heating substrate 212 is rapidly conducted to the temperature sensing element 240, which is beneficial for the temperature sensing element 240 to sensitively sense the temperature of the heating substrate 212, and improves the sensing accuracy of the temperature sensing element 240. In this embodiment, the temperature sensing element may be a thermistor (NTC) or a thermocouple.

In one embodiment, the heating mechanism 200 further comprises an adjuster (not shown) electrically connected to the temperature sensing assembly 240, and the adjuster is electrically connected to the first conductive pin 214 or the second conductive pin 216. The temperature sensing assembly 240 is used for generating an induction signal when the temperature of the heating substrate 212 reaches a preset temperature, and the regulator is used for regulating the current passing through the heating substrate 212 when the temperature sensing assembly 240 generates the induction signal, so that the current passing through the heating substrate 212 is kept constant, the heating temperature of the heating substrate 212 is kept constant, and the heating substrate 212 is used for realizing the constant heating of the cigarette 100.

It will be appreciated that the regulator may be a sliding varistor or a triode or field effect transistor. Because the cigarette 100 is effectively heated after the heating matrix 212 is electrified, and the airflow passing through the air guide channel 212a is heated to form hot airflow, the hot airflow impacts the tobacco leaves or other products in the cigarette 100 from inside to outside and is subjected to penetration heating without dead angles, so that the cigarette 100 is not only heated by contact conduction of the heating matrix 212, but also heated by the hot airflow, and the effect of double rapid heating is realized. In addition, under the protection of peripheral heat insulation cover 220, the heat loss of heating base member 212 has significantly reduced, under the temperature sensing subassembly and the common control to the temperature of regulator in addition, make heating base member 212 keep the best stoving temperature, and then the stoving to the tobacco leaf in a cigarette 100 or other products is more abundant, and the taste is better, and does not have poisonous and harmful substance heating base member 212 itself, has better security and energy-conserving effect.

As shown in fig. 9, in one embodiment, the method for manufacturing the heating mechanism 200 according to any of the above embodiments includes some or all of the following steps:

s101, the first conductive leads 214 and the second conductive leads 216 are positioned in a first mold.

In this embodiment, the first conductive leads 214 and the second conductive leads 216 are positioned in the first mold, so that the first conductive leads 214 and the second conductive leads 216 are positioned relatively, thereby avoiding the subsequent separation during the molding of the heating substrate 212, and avoiding the occurrence of short circuit to affect the overall heat generation performance of the heating substrate 212. Specifically, the first conductive pin 214 may be a positive conductive pin and the second conductive pin 216 may be a negative conductive pin.

S103, injecting the first slurry into the first mold, and forming the heated substrate 212 connected to the first conductive pin 214 and the second conductive pin 216 respectively.

In the present embodiment, the first slurry is injected into the first mold, and the heating substrate 212 connected to the first conductive pin 214 and the second conductive pin 216 is formed, the heating substrate 212 is formed with the avoiding groove 212b and the connecting groove 212c, and the second conductive pin 216120 is located in the avoiding groove 212b and the connecting groove 212c, respectively. Two ends of the heating substrate 212 are respectively wrapped on the end of the first conductive pin 214 and the end of the second conductive pin 216, so that the first conductive pin 214 and the second conductive pin 216 are respectively and firmly connected with two ends of the heating substrate 212, and further the first conductive pin 214 and the second conductive pin 216 are respectively and electrically connected with two ends of the heating substrate 212. In one embodiment, the heating substrate 212 is made of conductive heating ceramic or conductive heating metal, so that the heating substrate 212 generates heat when conducting.

S105, injecting the second slurry into the second mold to form the thermal sleeve 220 having the receiving groove 222.

In this embodiment, a second slurry is injected into the second mold to form the thermal sleeve 220 having a receiving groove 222. In one embodiment, the insulating sleeve 220 is removably coupled to the heating substrate 212. The heat insulating sleeve 220 is further formed with a first screw-in groove 223 and a second screw-in groove 225 both communicating with the receiving groove 222. Further, the receiving groove 222 is adapted to the heating substrate 212, so that the gap between the heat insulating sleeve 220 and the heating substrate 212 is small.

S107, the heating substrate 212 is placed in the accommodating groove 222, so that the heat insulation sleeve 220 is connected to the heating substrate 212.

In this embodiment, the heating substrate 212 is disposed in the accommodating groove 222, and the heat insulation sleeve 220 is disposed around the heating substrate 212 and connected to the heating substrate 212. Further, the receiving groove 222 is adapted to the heating substrate 212, so that the gap between the heat insulating sleeve 220 and the heating substrate 212 is small.

In the manufacturing method of the heating mechanism 200, the first conductive pin 214 and the second conductive pin 216 are first positioned in a first mold, so that the first conductive pin 214 and the second conductive pin 216 are positioned relatively; then injecting the first slurry into a first mold, and molding a heated substrate 212 connected to the first conductive pin 214 and the second conductive pin 216 respectively; then injecting a second slurry into the second mold to form the thermal sleeve 220 having the receiving groove 222; finally, the heating substrate 212 is placed in the receiving groove 222, so that the heat insulation sleeve 220 is assembled to the heating substrate 212. Because the first conductive pin 214 is connected with one end of the heating substrate 212 and the second conductive pin 216 is connected with the other end of the heating substrate 212, the first conductive pin 214 and the second conductive pin 216 are respectively electrically connected with two ends of the heating substrate 212, and current flows at two ends of the heating substrate 212, so that the whole part of the heating substrate 212 is conductive and generates heat, and meanwhile, the heating of the heating substrate 212 is uniform, so that the heating substrate 212 has a good heating effect on the cigarette 100. When the first conductive pin 214 and the second conductive pin 216 are powered on, the heat of the heating substrate 212 directly acts on the cigarette 100, so that the heating substrate 212 heats the cigarette 100, the cigarette 100 emits smoke, and the smoke is mixed with the airflow of the air guide channel 212a and inhaled into the oral cavity of a smoker; in addition, the heat part of the heating substrate 212 heats the air flow passing through the air guide channel 212a in a heat radiation mode, so that the air flow is heated before being mixed with the smoke, the air flow passing through the air guide channel 212a is rapidly diffused and mixed with the smoke, the cigarette 100 is heated without dead angles, and the heating effect of the electronic cigarette 10 is improved.

In one embodiment, after step S107, the preparation method further includes: third paste is injected into the connecting groove 212c and the avoiding groove 212b, respectively, to form an insulating portion covering the second conductive pin 216.

In the present embodiment, a third paste is injected into the connection groove 212c and the avoiding groove 212b to form the insulating portion 200 covering the second conductive pin 216120, so that the second conductive pin 216120 located in the connection groove 212c is insulated from the heating substrate 212, and the second conductive pin 216120 is connected to the second end of the heating substrate 212 only in the connection groove 212c, so that the first conductive pin 214 and the second conductive pin 216 are electrically connected to two ends of the heating substrate 212, respectively.

In one embodiment, the insulation portion is at least formed in the gap to prevent the second conductive pin 216 located in the avoiding groove 212b from directly contacting the heating substrate 212 for conduction, so that the second conductive pin 216 is reliably conducted to the end portion of the heating substrate 212 through the avoiding groove 212b, and both ends of the heating substrate 212 are respectively connected to the first conductive pin 214 and the second conductive pin 216. Further, the insulating portion is filled in the avoiding groove 212b, so that the problem that the second conductive pin 216 in the avoiding groove 212b is in direct contact with the heating substrate 212 for conduction is better avoided, conductive heating at two ends of the heating substrate 212 is realized, and the second conductive pin 216 is more firmly installed and positioned. It is understood that in other embodiments, the insulating portion completely covers the second conductive pin 216, so that the second conductive pin 216 is reliably conducted to all positions on the end portion of the heating substrate 212 except for the end portion of the heating substrate 212 connected to the bent portion 216b through the avoiding groove 212b, the second conductive pin 216 is only conducted at the position where the bent portion 216b is connected to the heating substrate 212, and the other positions are insulated, so as to reliably achieve conductive heating at two ends of the heating substrate 212, and simultaneously avoid the problem of short circuit of the second conductive pin 216. In one embodiment, the insulating portion 200 is made of glass cement or quartz, so that the insulating portion 200 has better insulating performance, and the insulating portion 200 is better connected to the inner wall of the avoiding groove 212 b. In this embodiment, the insulating portion 200 is made of glass cement.

Further, the steps of injecting the first slurry into the first mold and molding the heated substrate 212 connected to the first conductive pin 214 and the second conductive pin 216 respectively include: the first paste is injected into the first mold through a glue filling process, and the heating substrate 212 respectively connected to the first conductive pin 214 and the second conductive pin 216 is formed, so that the first paste is rapidly injected into the first mold, and the heating substrate 212 is better connected to the first conductive pin 214 and the second conductive pin 216.

Further, the step of injecting the second slurry into the second mold to form the thermal insulation sleeve 220 having the receiving groove 222 includes: the second slurry is injected into the second mold by a glue filling process to form the thermal sleeve 220 having the receiving groove 222, so that the second slurry is rapidly injected into the second mold.

It is understood that in other embodiments, the first mold and the second mold may be the same mold, and the first slurry and the second slurry are injected into different positions of the same mold in sequence, so as to mold the heating substrate 212 and the thermal insulating sleeve 220 in sequence in the same mold.

It is understood that in other embodiments, the coupling of the insulating sleeve 220 to the heating substrate 212 may also be a non-removable coupling. In one embodiment, after the step of placing the heating substrate 212 in the receiving groove 222 to assemble the heat insulating sleeve 220 to the heating substrate 212, the preparation method further comprises: the fourth slurry is injected between the heating substrate 212 and the inner wall of the receiving groove 222 to form the heat conductive connection portion. In the present embodiment, the heat conducting connection portions are respectively connected with the heating substrate 212 and the inner wall of the heat insulating sleeve 220.

Further, the step of injecting the fourth slurry between the heating substrate 212 and the inner wall of the accommodating groove 222 to form the heat conducting connection portion specifically includes: first, a fourth slurry is poured between the heating substrate 212 and the inner wall of the accommodating groove 222; then, the heat conductive connection portion is formed by sintering, so that the heat conductive connection portion is formed between the heating substrate 212 and the inner wall of the accommodating groove 222. In this embodiment, the material of the heat-conducting connecting portion is the same as that of the heat-insulating sleeve 220, and is ceramic or other heat-conducting materials, so that the heat-conducting connecting portion is fastened to the heat-insulating sleeve 220. In other embodiments, the material of the heat-conducting connection portion may also be the same as that of the heating substrate 212, and both are made of an electrically conductive heating ceramic material, so that the heat-conducting connection portion is tightly connected with the heating substrate 212.

In order to better sinter-mold the heat-conducting connecting portion between the heating substrate 212 and the heat insulating sleeve 220, further, the step of sintering-molding the heat-conducting connecting portion specifically includes: firstly, continuously sintering at 400-600 ℃ for a first preset time; and then continuously sintering the mixture at 1000-1500 ℃ for a second preset time, wherein the first preset time is greater than the second preset time, and the heat conduction connecting part is well sintered and molded between the heating substrate 212 and the heat insulation sleeve 220 in a mode of firstly slow sintering and then fast sintering. In this embodiment, the first predetermined time is 30min to 1h, and the second predetermined time is 15min to 40 min.

Further, before the step of injecting the fourth slurry between the heating substrate 212 and the inner wall of the receiving groove 222 to form the heat conductive connection part, and after the step of placing the heating substrate 212 in the receiving groove 222, the preparation method further includes: the heating substrate 212 and the heat insulating sleeve 220 are relatively positioned, so that the gap between the axis of the heating substrate 212 and the heat insulating sleeve 220 is relatively uniform, and further the axis of the heating substrate 212 is overlapped with the axis of the heat insulating sleeve 220, so that the subsequent fourth slurry can be uniformly injected into the gap between the heating substrate 212 and the heat insulating sleeve 220.

However, when the fourth slurry is injected between the heating substrate 212 and the inner wall of the receiving groove 222, air bubbles exist in the fourth slurry injected between the heating substrate 212 and the inner wall of the receiving groove 222, so that air holes exist on the structural surface of the conductive connecting part, and further the forming quality of the conductive connecting part is poor, in order to improve the forming quality of the conductive connecting part, further, before the step of injecting the fourth slurry between the heating substrate 212 and the inner wall of the receiving groove 222 to form the conductive connecting part, and after the step of placing the heating substrate 212 in the receiving groove 222, the preparation method further includes: the vacuum pumping operation is performed between the heating substrate 212 and the heat insulating sleeve 220 to remove air between the heating substrate 212 and the heat insulating sleeve 220, so that the problem of poor forming quality of the conductive connecting part is solved.

In order to improve the forming quality of the electrically conductive connection portion, for example, before the step of sintering and forming the thermally conductive connection portion, and after the step of pouring the fourth slurry between the heating substrate 212 and the inner wall of the receiving groove 222, the step of forming the thermally conductive connection portion further includes: the heating substrate 212 and the heat insulating sleeve 220 are simultaneously oscillated to remove bubbles of the fourth paste injected between the heating substrate 212 and the heat insulating sleeve 220, thereby improving the molding quality of the conductive connection part. Further, the step of simultaneously oscillating the heating substrate 212 and the thermal insulation sleeve 220 is specifically: the heating substrate 212 and the thermal sleeve 220 are simultaneously subjected to a rotational oscillation operation at a predetermined rotational speed to eliminate bubbles of the fourth slurry injected between the heating substrate 212 and the thermal sleeve 220. In the embodiment, the preset rotating speed is 800 r/min-1500 r/min. In this embodiment, the predetermined rotation speed is 1000r/min, so that the bubbles of the fourth slurry between the heating substrate 212 and the thermal insulation sleeve 220 can be eliminated quickly.

1. the first conductive pin 214 can be externally connected with the positive electrode of the power supply, the second conductive pin 216 can be externally connected with the negative electrode of the power supply, because the first conductive pin 214 is connected with one end of the heating substrate 212, and the second conductive pin 216 is connected with the other end of the heating substrate 212, the first conductive pin 214 and the second conductive pin 216 are respectively electrically connected with two ends of the heating substrate 212, current flows at two ends of the heating substrate 212, so that the whole part of the heating substrate 212 is conductive and can generate heat, and meanwhile, the heating of the heating substrate 212 is more uniform, so that the heating substrate 212 has a better heating effect on the cigarette 100;

2. when the first conductive pin 214 and the second conductive pin 216 are powered on, the heat of the heating substrate 212 directly acts on the cigarette 100, so that the heating substrate 212 heats the cigarette 100, the cigarette 100 emits smoke, and the smoke is mixed with the airflow of the air guide channel 212a and inhaled into the oral cavity of a smoker; in addition, the heat part of the heating substrate 212 heats the air flow passing through the air guide channel 212a in a heat radiation mode, so that the air flow is heated before being mixed with the smoke, the air flow passing through the air guide channel 212a is rapidly diffused and mixed with the smoke, the cigarette 100 is heated without dead corners, and the heating effect of the electronic cigarette 10 is improved;

3. because the heating substrate 212 is completely positioned in the accommodating groove 222 and connected with the heat insulation sleeve 220, heat loss caused by direct exposure of the heating substrate 212 to the outside is avoided, and further, the heat of the heating substrate 212 is better heated and acts on the cigarette 100, so that the heating effect of the electronic cigarette 10 is improved;

4. the heating substrate 212 is completely positioned in the accommodating groove 222 and connected with the heat insulation sleeve 220, the heating substrate 212 is uniformly heated after being electrified, heavy metal does not exist at the contact part of the heating substrate 212 and the cigarette 100, the problem that the heating mechanism 200 is poor in heating performance and even fails in the using process in the traditional heating mode of a conductive sheet formed by a printing process is solved, and the using reliability of the electronic cigarette 10 is improved.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a heating mechanism, its characterized in that, heating mechanism includes heating element, heating element includes heating base member, first electrically conductive pin and the electrically conductive pin of second, the wind-guiding passageway has been seted up to the heating base member, has kept away a groove and spread groove, keep away a groove with the spread groove intercommunication, first electrically conductive pin with the one end of heating base member is connected, the electrically conductive pin of second is located respectively keep away a groove with in the spread groove, the electrically conductive pin of second passes through the spread groove with the other end of heating base member is connected, just the electrically conductive pin of second with there is the clearance between the inner wall of keeping away a groove, the heating base member is used for generating heat when the circular telegram.

2. The heating mechanism as claimed in claim 1, wherein the air guiding channel is an air guiding hole or an air guiding groove.

3. The heating mechanism of claim 1, further comprising a heat shield defining a receiving cavity, wherein the heating substrate is completely disposed within the receiving cavity and coupled to the heat shield.

4. The heating mechanism of claim 3, wherein the heating base is removably coupled to the insulating sleeve.

5. The heating mechanism as claimed in claim 4, wherein the outer wall of the heating base body is provided with a first boss and a second boss, and one end of the heat insulation sleeve is provided with a first screwing groove and a second screwing groove respectively;

the first screw-in groove comprises a first socket and a first screw-in groove main body which are communicated, and the first boss is used for being screwed into the first screw-in groove main body along a preset direction when being in the first socket;

the second screw-in groove comprises a second socket and a second screw-in groove main body which are communicated, and the second boss is used for being screwed into the second screw-in groove main body along the preset direction when being in the second socket.

6. The heating mechanism of claim 3, wherein the heating base is disposed coaxially with the sleeve, and wherein the heating base has an axial length less than an axial length of the sleeve.

7. The heating mechanism as claimed in claim 1, wherein the avoiding groove is formed in a side wall of the heating base.

8. The heating mechanism of claim 1, further comprising insulation molded at least within the gap.

9. The heating mechanism as claimed in any one of claims 1 to 8, wherein a heating groove is formed at an end of the heating base body facing away from the first conductive pin.

10. An electronic cigarette, comprising a cigarette rod and the heating mechanism of any one of claims 1 to 9, wherein the heating substrate is configured to heat the cigarette rod.