CN112137176A - Electronic cigarette, heating mechanism and preparation method thereof - Google Patents

Abstract

The application provides an electronic cigarette, a heating mechanism and a preparation method thereof. The heating mechanism comprises an annular heating body, a heat conducting component, a first conductive pin and a second conductive pin, wherein the annular heating body is provided with a notch and is used for heating when being electrified; the heat conducting component coats the annular heating body; the first conductive pin is electrically connected with the annular heating body; the second conductive pin is electrically connected with the annular heating body. When the first conductive pin and the second conductive pin are electrified, the heat conducting assembly coats the annular heat-generating body, and heat generated by the annular heat-generating body is conducted to the heat conducting assembly and then contacted and conducted to the cigarette by the heat conducting assembly, so that the cigarette is heated by the heating mechanism, smoke is emitted by the cigarette, and the heating effect of the heating mechanism is improved.

Description

Electronic cigarette, heating mechanism and preparation method thereof

Technical Field

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

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 metal heating piece of the heating mechanism of the traditional electronic cigarette is formed on the cylindrical heat-conducting ceramic surface through a printing and pasting process, namely the metal heating piece is fixed on the heat-conducting ceramic surface through a glass cement pasting piece and is led out of an external power supply through a conductive pin. When the metal generates heat when the piece circular telegram, and the metal generates heat the heat of piece and conducts to heat conduction ceramic surface through glass glue, long-time back of using, the metal generates heat the easy wearing and tearing of piece, makes heating mechanism have the heat conduction inequality and heats the relatively poor problem of effect.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides the electronic cigarette, the heating mechanism and the preparation method thereof, wherein the electronic cigarette has uniform heat conduction and good heating effect.

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

a heating mechanism, the heating mechanism comprising:

the annular heating body is provided with a notch and is used for heating when being electrified;

the heat conduction assembly coats the annular heating body;

the first conductive pin is electrically connected with the annular heating body;

and the second conductive pin is electrically connected with the annular heating body.

In one embodiment, the heat conducting assembly includes a heat conductor and a heat conducting filling portion, the heat conductor is provided with a placing groove, the heating body is located in the placing groove, the heat conducting filling portion is formed in the placing groove, and the heat conducting filling portion covers the annular heating body.

In one embodiment, the heat conductive filling part is formed in the placing groove in a sintering mode.

In one embodiment, the placement groove is opened on an end surface of the heat conductor.

In one embodiment, the thermal conductor is a ceramic thermal conductor.

In one embodiment, the heat conductor is cylindrical.

In one embodiment, the first conductive pin is connected with one side of the annular heating element, and the second conductive pin is connected with the other side of the annular heating element.

In one embodiment, the annular heating element comprises a connecting part and a surrounding component which are connected, and the connecting part is respectively connected with the first conductive pin and the second conductive pin; the breach is including seting up in the connection breach of connecting portion with seting up in encircle the breach of encircleing of subassembly, connection breach with encircle the breach intercommunication.

A method of making a heating mechanism, comprising:

injecting the first slurry into a mold to form a heat conductor of the heat conducting assembly, wherein a placing groove is formed in the heat conductor;

respectively welding a first conductive pin and a second conductive pin to the annular heating body;

placing the annular heating body into the placing groove;

injecting second slurry into the placing groove to form a heat conduction filling part coated on the annular heating element;

and carrying out curing treatment on the heat conduction filling part.

An electron cigarette, includes cigarette and above-mentioned any embodiment heating mechanism, heat-conducting component 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 is connected with the anode of the power supply, the second conductive pin is connected with the cathode of the power supply, and the first conductive pin and the second conductive pin are electrically connected with the annular heating element, so that the annular heating element is electrified, the whole annular heating element is electrically conductive and heats, and the heating of the heating substrate is uniform, so that the heating substrate has a good heating effect on cigarettes;

2. when the first conductive pin and the second conductive pin are electrified, the heat conducting assembly coats the annular heating body, and heat generated by the annular heating body is conducted to the heat conducting assembly and then contacted with and conducted onto the cigarette by the heat conducting assembly, so that the cigarette is heated by the heating mechanism, smoke is emitted by the cigarette, and the heating effect of the heating mechanism is improved; because the heat that the annular heat-generating body produced conducts to heat-conducting component, avoid heat-conducting component directly to expose in heat-conducting component's periphery, and the position that heat-conducting component and cigarette contacted does not also have heavy metal, avoided traditional mode of passing through the shaping of printing paster technology on the heat conduction ceramic surface of tube-shape, do not have the easy problem of wearing and tearing of metal heating piece in the use, improved the use reliability of electron cigarette.

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 view of a heating mechanism 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 2;

FIG. 4 is a schematic view of another perspective of the heating mechanism of FIG. 3;

FIG. 5 is a cross-sectional view of the heating mechanism of FIG. 4;

FIG. 6 is a schematic view of another perspective of the heating mechanism of FIG. 3;

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

fig. 8 is a flowchart of a method for manufacturing a heating mechanism of 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. Referring also to fig. 3, in one embodiment, the heating mechanism 200 includes a ring-shaped heat generating body 210, a heat conducting assembly 220, a first conductive pin 230, and a second conductive pin 240. The ring-shaped heating element 210 has a notch 210a, and the ring-shaped heating element 210 generates heat when energized. The heat conductive member 220 covers the ring-shaped heat generating body 210. The first conductive pin 230 is electrically connected to the ring-shaped heating element 210, and the second conductive pin 240 is electrically connected to the ring-shaped heating element 210, so that both the first conductive pin 230 and the second conductive pin 240 are electrically connected to the ring-shaped heating element 210. In the present embodiment, the heat-conducting component 220 is in contact with the cigarette 100 for heating the cigarette 100.

The first conductive pin 230 is connected to the positive pole of the power supply, the second conductive pin 240 is connected to the negative pole of the power supply, and since the first conductive pin 230 and the second conductive pin 240 are both electrically connected to the annular heating element 210, the annular heating element 210 is powered on, so that the annular heating element 210 is integrally conductive and heated, and meanwhile, the heating of the heating substrate is uniform, so that the heating substrate has a good heating effect on the cigarette 100; when the first conductive pin 230 and the second conductive pin 240 are powered on, the heat conducting assembly 220 coats the annular heating element 210, and heat generated by the annular heating element 210 is conducted to the heat conducting assembly 220 and then contacted with the cigarette 100 through the heat conducting assembly 220 and conducted onto the cigarette 100, so that the cigarette 100 is heated by the heating mechanism 200, smoke is emitted from the cigarette 100, and the heating effect of the heating mechanism 200 is improved; because the heat generated by the annular heating body 210 is conducted to the heat conducting component 220, the heat conducting component 220 is prevented from being directly exposed out of the periphery of the heat conducting component 220, and the contact part of the heat conducting component 220 and the cigarette 100 does not have heavy metal, so that the traditional mode of forming the heat conducting component on the surface of the cylindrical heat conducting ceramic through a printing and pasting process is avoided, the problem that the metal heating piece is easy to wear in the using process is avoided, and the use reliability of the electronic cigarette 10 is improved.

As shown in fig. 1 and 2, the electronic cigarette 10 further includes a housing 300, the housing 300 defines an air suction channel 310, and the heat conducting assembly 220 is disposed along an air suction direction of the air suction channel 310, so that the heating mechanism 200 is installed in the housing 300. The cigarette 100 is inserted through the suction channel and abuts against the heat conducting assembly 220, so that the heat conducting assembly 220 heats the cigarette 100.

As shown in fig. 2, in an embodiment, the electronic cigarette 10 further includes a battery 400, a positive electrode of the battery 400 is electrically connected to the first conductive pin 230, and a negative electrode of the battery 400 is electrically connected to the second conductive pin 240, so that the ring-shaped heating element 210 is electrically powered to generate heat. In the present embodiment, the battery 400 is a rechargeable battery 400 or a disposable battery 400. Specifically, the battery 400 is a secondary battery 400. It is understood that in other embodiments, the battery 400 may be omitted, and the first conductive pin 230 is externally connected to the positive pole of the power supply, and the second conductive pin 240 is externally connected to the negative pole of the power supply, so that the ring-shaped heating element 210 is heated in an electrically conductive manner.

As shown in fig. 4 and 5, in one embodiment, the heat conducting assembly 220 includes a heat conducting body 222 and a heat conducting filling portion 224, the heat conducting body 222 is provided with a placing groove 2221, the heating body is located in the placing groove 2221, the heat conducting filling portion 224 is formed in the placing groove 2221, and the heat conducting filling portion 224 covers the annular heating body, so as to prevent the annular heating body from being exposed outside the heat conducting body 222, and a portion of the heat conducting body 222 contacting with the cigarette 100 does not have heavy metal, thereby avoiding a conventional manner of forming the heat conducting body on a cylindrical heat conducting ceramic surface by a printing and pasting process, avoiding a problem that the metal heating member is easily worn during use, and improving the reliability of the electronic cigarette 10. During manufacturing, the heat conductor 222 and the heat conductive filling part 224 are respectively molded, the heat conductor 222 with the placing groove 2221 can be processed first, then the annular heating body is placed in the placing groove 2221, and finally the heat conductive filling part 224 is molded in the placing groove 2221 and covers the annular heating body, so that the manufacturing difficulty and the cost of the heating mechanism 200 are reduced. In this embodiment, the heat conductive filling part 224 completely covers the ring-shaped heating element 210, and the ring-shaped heating element 210 generates heat in a ring shape after being energized, so that the heat conductive filling part 224 can be heated better. Because the heat-conducting filling part 224 is formed in the placing groove 2221, the heat-conducting filling part 224 is tightly connected with the inner wall of the heat conductor 222, so that the heat generated by the annular heating element 210 is quickly conducted to the surface of the heat conductor 222 through the heat-conducting filling part 224, the heat loss is small, the heat conduction efficiency of the heating mechanism 200 is improved, and the heating uniformity of the heating mechanism 200 is improved.

As shown in fig. 5, in one embodiment, the heat conductor 222 is a ceramic heat conductor, so that the heat conductor 222 does not have heavy metal problem after heat conduction, making the heating mechanism 200 more environment-friendly, and making the heat conductor 222 have better heat conductivity. Further, the heat conductor 222 is formed by a glue-pouring injection molding process, and the placing groove 2221 is easily formed directly during manufacturing, so that secondary processing is not required, and the difficulty in forming the heat conductor 222 is low.

As shown in fig. 5, in one embodiment, the heat conductive filling portion 224 is formed in the placing groove 2221 by sintering, so that the heat conductive filling portion 224 is tightly and firmly connected to the placing groove 2221, thereby improving the reliability of the connection of the heat conductive filling portion 224 to the heat conductor 222. In one embodiment, the material of the heat conductive filling portion 224 is the same as that of the heat conductor 222, so that the heat conductive filling portion 224 is preferably formed in the placing groove 2221, and the heat conductive filling portion 224 is firmly connected to the heat conductor 222. In addition, the heat conductive filling portion 224 and the inner wall of the placement groove 2221 can be better attached to each other, so that the heat conductive filling portion 224 and the heat conductor 222 are tightly connected to each other, the heat loss of heat conducted between the heat conductive filling portion 224 and the heat conductor 222 is further reduced, and the heat conductive effect of the heating mechanism 200 is improved. In this embodiment, the heat conductive filling portion 224 and the heat conductor 222 are made of ceramic materials, and during manufacturing, the heat conductor 222 is first molded in a mold, then the annular heating element 210 is placed in the placing groove 2221 and is positioned relatively, then ceramic slurry is injected into the placing groove 2221 in the same mold, and finally sintering molding is performed, so that the annular heating element 210 is completely covered in the heat conductive filling portion 224, thereby greatly reducing the manufacturing difficulty of the heating mechanism 200.

It is understood that in other embodiments, the material of the thermal conductive filling portion 224 may be different from the material of the thermal conductor 222. For example, the material of the thermal conductive filling portion 224 is a metal material or other thermal conductive material.

As shown in fig. 5 and 6, in one embodiment, the placing groove 2221 is disposed on one end surface of the heat conductor 222, so that one end surface of the heat conductor 222 is grooved, and the other end surface is closed, thereby simplifying the difficulty in forming the heat conductive filling portion 224, and in addition, the annular heating element 210 is completely covered in the heat conductive filling portion 224, so that when the heating mechanism 200 is assembled in the air intake channel of the electronic cigarette 10, the placing groove 2221 is placed in the direction opposite to the air intake direction of the air intake channel, thereby completely avoiding the problem of heavy metal contamination when the heating mechanism 200 heats the cigarette 100.

As shown in fig. 2 and fig. 5, in order to improve the heating effect of the heating mechanism 200, in one embodiment, the heat conductor 222 is cylindrical, and the heat conductor 222 is sleeved and abutted on the cigarette 100, so that the contact area between the heat conductor 222 and the sidewall of the cigarette 100 is larger, and the heating effect of the heating mechanism 200 is improved. In this embodiment, the heat conductor 222 further forms a mounting cavity 2223 spaced apart from the placement groove 2221, and the cigarette 100 is mounted in the mounting cavity 2223 and contacts with the inner wall of the heat conductor 222, so that the heat conductor 222 contacts with only the side wall of the cigarette 100 to conduct heat. Specifically, the mounting cavity 2223 is formed to penetrate along the axial direction of the heat conductor 222, and the mounting cavity 2223 is an equal-diameter cavity extending along the axial direction, so that the heat conductor 222 is better sleeved on the cigarette 100.

It will be appreciated that in other embodiments, mounting cavity 2223 is not limited to being an axially extending, constant diameter cavity. In one embodiment, the heat conductor 222 includes a heat conductive body and a closed end connected to each other, and the placement groove 2221 is opened in the heat conductive body. The heating groove has been seted up to the tip of closing, the axial lead of constant head tank and the axial lead collineation of standing groove 2221, cigarette 100 insert in the heating groove and with the inner wall butt of closing the tip, make cigarette 100 great with the area of contact of closing the tip, make heat conductor 222 butt in the bottom of cigarette 100, so heat conductor 222 can wrap up cigarette 100 bottom completely, make heat conductor 222's heat conduct to cigarette 100 better, make heat conductor 222's heat loss littleer, make heat conductor 222 have better leakproofness and heat conductivity simultaneously, and then make electron cigarette 10 more energy-conserving 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.

Further, the heat conducting main body 222a is provided with an air guide channel extending along the axial direction of the heat conductor 222, the air guide channel is communicated with the heating groove, so that the air flow heated through the air guide channel 212a directly acts on the cigarette 100, and meanwhile, the heating groove 212d is abutted against the cigarette 100 for heating, so that the heating mechanism 200 can better heat the cigarette 100.

In this embodiment, the heating slot 212d is adapted to the shape of the cigarette 100, so that the heat conductor 222 better wraps 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 heat conductor 222 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 heat conductor 222 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, a spiral groove communicated with the heating groove 212d is further formed in the closed end, part of the spiral groove is located on the inner peripheral wall of the heating groove 212d, meanwhile, the air flow part passing through the air guide channel 212a flows out through the spiral groove, and 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 heat conductor 222, and one end of the spiral groove extends to the end surface of the heat conductor 222, 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 guiding 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.

Further, the heating mechanism 200 further includes a temperature sensing element (not shown) for detecting the temperature of the heat conductor 222. The temperature sensing assembly is at least partially covered in the heat conductor 222, so that the temperature of the heat conductor 222 is rapidly conducted to the temperature sensing assembly, the temperature sensing assembly is favorable for sensitively sensing the temperature of the heat conductor 222, and the sensing precision of the temperature sensing assembly is improved. 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, and the adjuster is further electrically connected to the first conductive pin 230214 or the second conductive pin 240216. The temperature sensing assembly is used for generating an induction signal when detecting that the temperature of the heat conductor 222 reaches a preset temperature, and the regulator is used for regulating the current passing through the heat conductor 222 when the temperature sensing assembly generates the induction signal, so that the current passing through the heat conductor 222 is kept constant, the heating temperature of the heat conductor 222 is kept constant, and the heat conductor 222 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 heated effectively after the heat conductor 222 is electrified, and meanwhile, the air flow passing through the air guide channel 212a is heated to form hot air flow, the hot air flow 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 heated by the contact conduction of the heat conductor 222 and the heated air flow, and the effect of double rapid heating is realized. In addition, under the protection of peripheral heat insulation cover 220, the heat loss of heat conductor 222 has significantly reduced, and under the temperature sensing subassembly and the common control to the temperature of regulator in addition, make heat conductor 222 keep the best stoving temperature, and then the stoving to the tobacco leaf in cigarette 100 or other products is more abundant, and the taste is more, and heat conductor 222 does not have poisonous harmful substance itself, has better security and energy-conserving effect.

In one embodiment, the first conductive pin 230 is connected to one side of the ring-shaped heating element 210, and the second conductive pin 240 is connected to the other side of the ring-shaped heating element 210, so that the ring-shaped heating element 210 is electrically connected to the first conductive pin 230 and the second conductive pin 240, respectively, to realize the heating of the ring-shaped heating element 210 by electrifying. In this embodiment, the first conductive pin 230 and the second conductive pin 240 are respectively connected to two sides of the annular heating element 210, where the notch 210a is formed, so that the annular heating element 210 is a non-closed loop structure, and the problem of eddy current generated after the annular heating element 210 is powered on is avoided.

As shown in fig. 7, in one embodiment, the ring-shaped heat generating element 210 includes a connecting portion 213 and a surrounding member 215, the connecting portion 213 is connected to the first conductive pin 230 and the second conductive pin 240, respectively, so that the ring-shaped heat generating element 210 is connected to the first conductive pin 230 and the second conductive pin 240, respectively, and both the connecting portion 213 and the surrounding member 215 can generate heat by electricity due to the connection of the connecting portion 213 and the surrounding member 215. The notch 210a includes a connection notch 213a provided in the connection portion 213 and a surrounding notch 215a provided in the surrounding member 215, and the connection notch 213a communicates with the surrounding notch 215a to provide the notch 210a to the annular heating element 210. In the present embodiment, the connection part 213 and the surrounding member 215 are integrally formed, so that the structure of the ring-shaped heat generating element 210 is compact, and the ring-shaped heat generating element 210 can generate heat as a whole when energized. Specifically, the connecting portion 213 and the surrounding member 215 are coaxially disposed. In other embodiments, the connecting portion 213 and the surrounding member 215 may be formed separately and connected to each other by welding.

As shown in fig. 7, in one embodiment, the surround assembly 215 includes a first winding 2152 and a second winding 2154, one end of the first winding 2152 is connected to the connection portion 213, and the other end of the first winding 2152 is connected to the second winding 2154, so that the first winding 2152 is connected to the connection portion 213 and the second winding 2154, respectively. The surrounding gap 215a is opened in the first winding body 2152 and the second winding body 2154, respectively, so that the surrounding assembly 215 is opened with the surrounding gap 215 a. In the present embodiment, the first conductive pin 230 and the first winding body 2152 are respectively connected to two ends of the connection portion 213, and the connection notch 213a is formed between the two ends of the connection portion 213. The end of the first winding 2152 connected to the second winding 2154 is aligned with the first conductive pin 230 and the end of the second conductive pin 240 connected to the connection 213 is aligned with the end of the second winding 2154 remote from the first winding 2152.

As shown in fig. 7, in order to rapidly and uniformly conduct the ring-shaped heat generating body 210 to the heat conductor 222, further, the number of the surrounding assemblies 215 is plural, the connecting portion 213 and the plurality of the surrounding assemblies 215 are coaxially arranged side by side, and the second surrounding body 2154 of one of the adjacent two surrounding assemblies 215 is connected to the first surrounding body 2152 of the other surrounding assembly 215, so that heat generated by electrifying the ring-shaped heat generating body 210 is more uniform, and the ring-shaped heat generating body 210 is rapidly and uniformly conducted to the heat conductor 222.

As shown in fig. 8, the present application also provides a method for manufacturing a heating mechanism, which is used for manufacturing the heating mechanism of any one of the above embodiments. In one embodiment, the preparation method comprises part or all of the following steps:

s101, injecting the first slurry into a mold to form a heat conductor of the heat conducting assembly, wherein a placing groove is formed in the heat conductor.

In this embodiment, the first slurry is injected into the mold to mold the heat conductor of the heat conducting assembly, and the heat conductor is formed with a placing groove. The placing groove is formed in one end face of the heat conductor, so that one end face of the heat conductor is grooved, the other end face of the heat conductor is closed, and the forming difficulty of the heat conduction filling part is simplified.

In one embodiment, the heat conductor 222 is a ceramic heat conductor, so that the heat conductor 222 does not have heavy metal problem after heat conduction, the heating mechanism 200 is more environment-friendly, and the heat conductor 222 has better heat conduction performance. Further, the heat conductor 222 is formed by a glue-pouring injection molding process, and the placing groove 2221 is easily formed directly during manufacturing, so that secondary processing is not required, and the difficulty in forming the heat conductor 222 is low.

And S103, respectively welding the first conductive pin and the second conductive pin to the annular heating body.

In this embodiment, the first conductive pin and the second conductive pin are respectively soldered to the annular heating element, so that the first conductive pin and the second conductive pin are respectively and reliably electrically connected to the annular heating element. When the first conductive pin and the second conductive pin are electrified, the annular heating body integrally heats.

S105, placing the annular heating body into the placing groove.

And S107, injecting second slurry into the placing groove to form a heat conduction filling part coated on the annular heating body.

In this embodiment, pour into the second thick liquids into in the standing groove to the shaping play cladding in the heat conduction filling portion of annular heat-generating body avoids the annular heat-generating body to expose in the periphery of heat conductor, and the position of heat conductor and cigarette contact also does not have heavy metal, has avoided traditional mode through the heat conduction ceramic surface of printing paster technology shaping in the tube-shape, does not have the easy problem of wearing and tearing of metal heating piece in the use, has improved the use reliability of electron cigarette. Specifically, the heat conducting filling part completely covers the annular heating element 210, and the annular heating element 210 is electrified to generate heat in an annular shape, so that the heat conducting filling part can be heated better.

And S109, curing the heat conduction filling part.

In this embodiment, the heat conductive filling portion is cured to be tightly connected to the inner wall of the heat conductor. Because the heat conduction filling part is formed in the placing groove, the heat conduction filling part is tightly connected with the inner wall of the heat conductor, so that heat generated by the annular heating body 210 is quickly conducted to the surface of the heat conductor through the heat conduction filling part, the heat loss is small, the heat conduction efficiency of the heating mechanism is improved, and the heating uniformity of the heating mechanism is improved.

In one embodiment, the step of performing the curing process on the heat conductive filling portion specifically includes: and sintering and curing the heat conduction filling part to ensure that the heat conduction filling part is tightly and firmly connected with the placing groove, so that the reliability of connecting the heat conduction filling part to the heat conductor is improved. In one embodiment, the material of the heat conductive filling portion is the same as that of the heat conductor, so that the heat conductive filling portion is better formed in the placing groove, and the heat conductive filling portion is firmly connected with the heat conductor. In addition, the heat conduction filling portion can be better attached to and connected with the inner wall of the placing groove, so that the heat conduction filling portion is tightly connected with the heat conductor, the heat loss of heat conducted between the heat conduction filling portion and the heat conductor is further reduced, and the heat conduction effect of the heating mechanism is improved. In this embodiment, heat conduction filling portion and heat conductor are ceramic material, and during manufacturing, at first the heat conductor is moulded in the mould, then place annular heat-generating body in the standing groove and relative positioning, then pour into the standing groove with ceramic thick liquids in same mould in, and sintering shaping at last makes annular heat-generating body cladding in heat conduction filling portion completely, greatly reduced heating mechanism's the manufacturing degree of difficulty.

It is understood that in other embodiments, the material of the thermal conductive filling portion may be different from the material of the thermal conductor. For example, the material of the heat conductive filling portion is a metal material or other heat conductive materials.

In order to make the heat conductive filling part better coat the annular heating element, further, before the step of injecting the second slurry into the placing groove and after the step of placing the annular heating element into the placing groove, the preparation method further comprises: the annular heating body and the heat conductor are oppositely positioned, and the annular heating body and the heat conductor are coaxially arranged, so that gaps between all parts of the annular heating body and the inner wall of the heat conductor in the placing groove are uniform, the heat-conducting filling part is uniformly coated on the annular heating body, and the annular heating body is better coated on the heat-conducting filling part.

Further, after the step of injecting the second slurry into the placement tank and before the step of subjecting the heat conductive filling portion to the curing treatment, the manufacturing method further includes: the placing cavity is vacuumized to eliminate air in the placing cavity and in the slurry, so that the situation that the strength of the heat-conducting filling part is low due to the defects of air holes and the like in the formed heat-conducting filling part is avoided, and the connection performance and the heat-conducting performance of the heat conductor and the annular heating body are further influenced.

Further, after the step of injecting the second slurry into the placing tank and before the step of performing the vacuum-pumping operation on the placing cavity, the preparation method further includes: carry out the vibration operation with the mould is whole, avoid annular heat-generating body to have the problem that the cladding has heat conduction filling portion, make the second thick liquids evenly pour into the standing groove into, reduce the bubble in the second thick liquids simultaneously, and then make the heat conduction filling portion after the shaping cladding in annular heat-generating body better.

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

1. the first conductive pin is connected with the anode of the power supply, the second conductive pin is connected with the cathode of the power supply, and the first conductive pin and the second conductive pin are electrically connected with the annular heating element, so that the annular heating element is electrified, the whole annular heating element is electrically conductive and heats, and the heating of the heating substrate is uniform, so that the heating substrate has a good heating effect on cigarettes;

2. when the first conductive pin and the second conductive pin are electrified, the heat conducting assembly coats the annular heating body, and heat generated by the annular heating body is conducted to the heat conducting assembly and then contacted with and conducted onto the cigarette by the heat conducting assembly, so that the cigarette is heated by the heating mechanism, smoke is emitted by the cigarette, and the heating effect of the heating mechanism is improved; because the heat that the annular heat-generating body produced conducts to heat-conducting component, avoid heat-conducting component directly to expose in heat-conducting component's periphery, and the position that heat-conducting component and cigarette contacted does not also have heavy metal, avoided traditional mode of passing through the shaping of printing paster technology on the heat conduction ceramic surface of tube-shape, do not have the easy problem of wearing and tearing of metal heating piece in the use, improved the use reliability of electron cigarette.

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 (10)

1. A heating mechanism, comprising:

the annular heating body is provided with a notch and is used for heating when being electrified;

the heat conduction assembly coats the annular heating body;

the first conductive pin is electrically connected with the annular heating body;

and the second conductive pin is electrically connected with the annular heating body.

2. The heating mechanism according to claim 1, wherein the heat conducting assembly includes a heat conductor and a heat conducting filling portion, the heat conductor is provided with a placement groove, the heating body is located in the placement groove, the heat conducting filling portion is formed in the placement groove, and the heat conducting filling portion is wrapped around the annular heating body.

3. The heating mechanism according to claim 2, wherein the heat conductive filling portion is formed by sintering in the placement groove.

4. The heating mechanism according to claim 2, wherein the placement groove is provided in an end surface of the heat conductor.

5. The heating mechanism of claim 2, wherein the thermal conductor is a ceramic thermal conductor.

6. The heating mechanism of claim 2, wherein the heat conductor is cylindrical.

7. The heating mechanism according to claim 1, wherein the first conductive pin is connected to one side of the ring-shaped heat generating body, and the second conductive pin is connected to the other side of the ring-shaped heat generating body.

8. The heating mechanism according to claim 1, wherein the ring-shaped heating element comprises a connecting part and a surrounding component which are connected, and the connecting part is respectively connected with the first conductive pin and the second conductive pin; the breach is including seting up in the connection breach of connecting portion with seting up in encircle the breach of encircleing of subassembly, connection breach with encircle the breach intercommunication.

9. A method of making a heating mechanism, comprising:

injecting the first slurry into a mold to form a heat conductor of the heat conducting assembly, wherein a placing groove is formed in the heat conductor;

respectively welding a first conductive pin and a second conductive pin to the annular heating body;

placing the annular heating body into the placing groove;

injecting second slurry into the placing groove to form a heat conduction filling part coated on the annular heating element;

and carrying out curing treatment on the heat conduction filling part.

10. An electronic cigarette, comprising a cigarette rod and the heating mechanism of any one of claims 1 to 8, wherein the heat conducting component is used for heating the cigarette rod.

Images