CN218898318U

CN218898318U - Electron cigarette heater heat radiation structure and heater

Info

Publication number: CN218898318U
Application number: CN202123062162.2U
Authority: CN
Inventors: 陈志伟; 陈春遵; 李伟龙; 王志煌; 吴铭杰; 丁友镇; 朱肖华; 付增学; 刘茂琦; 于祥一; 胡浪
Original assignee: Xiamen Intretech Inc; Xiamen Fengtao Ceramics Co Ltd
Current assignee: Xiamen Intretech Inc; Xiamen Fengtao Ceramics Co Ltd
Priority date: 2021-02-16
Filing date: 2021-12-07
Publication date: 2023-04-25
Anticipated expiration: 2031-12-07
Also published as: CN218898317U; CN218790498U; WO2022174730A1; CN219205943U

Abstract

The utility model discloses a heat radiation structure of an electronic cigarette heater, which comprises a support shell, a ceramic heating body, a fuming product bearing assembly, a control circuit and a magnetic element; a containing cavity with a communicating hole at the bottom is formed in the supporting shell, and a smoke article jack communicated with the containing cavity is formed at the upper part of the supporting shell; the ceramic heating body is arranged in the accommodating cavity and comprises a heating body and a heating circuit, a porous channel is arranged in the heating body, and the heating circuit is arranged on the heating body so as to heat air passing through the porous channel; a smoking article carrier assembly is disposed in the receiving cavity, the smoking article carrier assembly defining a cavity adapted to receive a smoking article; the control circuit is arranged on the supporting shell and is connected with the heating circuit; the magnetic attraction element is arranged on the supporting shell, and a heat conduction connecting wire is connected between the magnetic attraction element and the control circuit. The utility model also discloses an electronic cigarette heater. The utility model can reduce heat accumulation on the control circuit.

Description

Electron cigarette heater heat radiation structure and heater

Technical Field

The utility model relates to the technical field of electronic cigarettes, in particular to a heat dissipation structure of an electronic cigarette heater and the heater.

Background

Smoking articles such as cigarettes and cigars are used by burning tobacco to produce smoke, and the smoke produced by burning tobacco contains many harmful substances, such as tar, which can cause serious harm to human body after long-term inhalation. Along with technological progress and continuous pursuit of healthy life by people, a cigarette substitute, namely an electronic cigarette, is currently presented. One typical e-cigarette approach is to release an active substance, such as nicotine, in a smoking article by means of heating without burning.

The heating non-burning electronic cigarette mainly heats the smoking article to about 300 ℃ by the working principle of low-temperature heating, so that effective components such as nicotine in the smoking article are baked out, and harmful substances such as tar in the smoking article are greatly reduced because the burning temperature is not reached.

In the related art, a contact heating scheme is generally used to bake a smoking article by heating an electronic cigarette, for example, a heating element such as a sword-shaped heating element, a needle-shaped heating element, etc. is inserted into the smoking article for heating. However, the contact heating scheme has the defect of uneven heating, namely the temperature of the part in direct contact with the heating element is higher, and the temperature of the part far away from the heating element is rapidly decreased, so that only the tobacco part close to the heating element can be thoroughly baked, the tobacco shreds in the smoking article cannot be completely baked, the tobacco shreds are wasted greatly, and the smoke quantity is insufficient. If the temperature of the heating element is increased to improve the baking efficiency, tobacco shreds Jiao Hu nearby the heating element are easy to cause, so that the taste is affected, and even harmful components are greatly increased to influence the health.

Disclosure of Invention

The present application was made based on the knowledge and study of the following problems by the inventors:

due to the fact that the contact heating scheme has the defect of uneven heating, insufficient baking of the smoking articles is necessarily caused, so that not only is the waste of tobacco shreds large, but also the smoke quantity is insufficient. For this reason, the inventors have found through extensive studies and experiments that the smoking process itself is an air flowing process, and if the temperature of the air flowing into the smoking article itself is high, the hot air can directly act to bake the smoking article, and since the hot air can penetrate the whole tobacco of the baked smoking article more completely and uniformly with the smoking process, the problem of uneven heating can be effectively solved. Therefore, the scheme of heating is realized by adopting a mode of heating air and then baking the smoking articles by using hot air flowing in the sucking process, and the overall heating effect is better.

Most of heating bodies of the heating non-combustion electronic cigarette (HNB) adopt resistance type heating, so that the resistance values of the heating bodies are required to be consistent in height, and the effect of each heating body on the heating non-combustion electronic cigarette is ensured to be consistent. However, the heating element mostly adopts a thick film circuit process, so that the resistance deviation of the heating element produced by screen printing is larger (usually within +/-15%), and the temperature difference of different heating elements is larger (usually within +/-45 ℃) when the heating element works at 300 ℃.

In the related art, the heating non-burning electronic cigarette mainly aims to solve the problem of larger error of a printed circuit through temperature calibration. The temperature calibration process has higher cost and low efficiency, and the after-sales maintenance cost is higher due to higher price of the temperature calibration instrument. And when the heating body is damaged and needs to be replaced, the maintenance effect is poor because no professional instrument and professional staff support are needed in the after-sales maintenance.

Meanwhile, in the smoking process of the electronic cigarette, the heating body generates heat, the heating body of the heating module is relatively close to the circuit board, the heating body is connected with the circuit board through a wire, the heat generated by the heating body is continuously conducted to the circuit board, and if the heat is continuously accumulated on the circuit board, the use function of the circuit board is affected, and even the circuit board is possibly damaged.

The present utility model aims to solve at least one of the technical problems in the above-described technology to some extent. Therefore, one purpose of the utility model is to provide a heat dissipation structure of an electronic cigarette heater, wherein a heating body and a control circuit are integrated on a supporting shell to form a heating module, the heating module measures resistance through an instrument when in production and is matched with the control circuit one by one, so that the accurate control of a single circuit board on a single heating body is realized, and the problems of consistency of the heating module and consistency of the heating module after replacement after sale are solved; meanwhile, the control circuit is connected with the magnetic attraction element through the heat conduction connecting wire, so that heat conducted to the control circuit by the heating element is further conducted to the magnetic attraction element, and heat is dissipated by means of the magnetic attraction element, so that heat accumulation on the control circuit is reduced.

Another object of the present utility model is to provide an electronic cigarette heater.

In order to achieve the above object, an aspect of the present utility model provides a heat dissipation structure of an electronic cigarette heater, including:

a supporting shell, wherein a containing cavity with a communicating hole at the bottom is formed in the supporting shell, and a smoke article jack communicated with the containing cavity is formed at the upper part of the supporting shell;

the ceramic heating body is arranged in the accommodating cavity and comprises a heating body and a heating circuit, a porous channel is arranged in the heating body, and the heating circuit is arranged on the heating body so as to heat air passing through the porous channel;

a smoking article carrier assembly disposed in the receiving cavity, the smoking article carrier assembly defining a cavity adapted to receive a smoking article;

the control circuit is arranged on the supporting shell and is connected with the heating circuit;

the magnetic attraction element is arranged on the supporting shell, and a heat conduction connecting wire is connected between the magnetic attraction element and the control circuit.

According to the heat radiation structure of the electronic cigarette heater, the ceramic heating element is arranged in the accommodating cavity of the supporting shell and comprises the heating body and the heating circuit, the control circuit is arranged on the supporting shell and connected with the heating circuit, namely, the heating module is formed by integrating the heating element and the control circuit on the supporting shell, the resistance of the heating module is measured through an instrument when the heating module is produced, the heating module is matched with the control circuit one by one, the accurate control of a single circuit board on the single heating element is realized, and the consistency of the heating module after replacement after sale are solved. Because the electronic cigarette stores tobacco tar in the electronic cigarette in the long-term use process, the smoking taste changes, so that the heating component needs to be replaced, and the frequency of replacing the heating component is higher, so that the power supply module and the main control circuit which are matched with the heating component are used, the existing electronic cigarette is integrated, and the heating component, the power supply module and the main control circuit need to be replaced at the same time, so that the cost is increased and resources are wasted.

Meanwhile, the magnetic attraction element is arranged on the support shell, a heat conduction connecting wire is connected between the magnetic attraction element and the control circuit, the heat of the heating body conducted to the control circuit is further conducted to the magnetic attraction element by the heat conduction connecting wire, and heat dissipation is carried out by means of the magnetic attraction element, so that heat accumulation on the control circuit is reduced.

In addition, according to the heat dissipation structure of the electronic cigarette heater provided by the utility model, the heat dissipation structure can also have the following additional technical characteristics:

optionally, the connection part of the control circuit and the heating circuit leads out the heat conduction connecting wire to be connected with the magnetic attraction element.

Optionally, a lower portion of the support case defines a setting space for setting the control circuit.

Specifically, still be equipped with the fixing base in the setting space, the fixing base with control circuit sets gradually, be equipped with the magnetism on the fixing base and inhale the component, be equipped with simultaneously and supply the PIN needle through with control circuit connects's connecting hole.

Further, the fixing seat is provided with a mounting groove with a shape matched with that of the magnetic element, and the magnetic element is arranged in the mounting groove.

Optionally, a wire through hole is provided in the support shell, so as to pass through a connection wire connecting the control circuit and the heating circuit.

Optionally, the support shell is formed by connecting an upper shell and a lower shell, and the upper shell is provided with a smoke article jack; the lower case is provided with the accommodation chamber.

Specifically, the outer side wall of the lower part of the lower shell forms a step, and the lower part of the lower shell is sleeved with a sealing ring which is propped against the step.

Optionally, a cleaning channel is disposed on the support shell, and the cleaning channel is communicated with the communication hole and the porous channel in the heating body.

Specifically, the cleaning channel is disposed radially on the support shell; the aperture of the cleaning channel is 2-10mm.

Optionally, the support shell is made of Polyetheretherketone (PEEK).

Optionally, the smoking article carrier assembly separates the smoking article from the ceramic heat generator.

Specifically, the smoking article carrying assembly comprises a preheating tube and a baffle disposed within a cavity defined by the preheating tube to divide the cavity into a first cavity adapted to house a portion of a smoking article and a second cavity adapted to house at least a portion of the ceramic heat generating body.

Optionally, the ceramic heating element and the smoking article bearing assembly are sleeved in the sealing sleeve.

Specifically, the sealing sleeve is formed by sleeving two layers of sleeves, the two layers of sleeves are sealed to form a sealing cavity, and the sealing cavity is arranged in vacuum.

To achieve the above object, another aspect of the present utility model provides an electronic cigarette heater, including:

a heat dissipation structure as described above;

and the heating matrix is connected with the heat dissipation structure and supplies energy to the heating module of the heat dissipation structure.

According to the electronic cigarette heater provided by the utility model, the ceramic heating element of the heating module is arranged in the accommodating cavity of the supporting shell and comprises the heating body and the heating circuit, and the control circuit is arranged on the supporting shell and connected with the heating circuit, namely, the heating module is formed by integrating the heating element and the control circuit on the supporting shell, and the resistance of the heating module is measured through an instrument when the heating module is produced, and is matched with the control circuit one by one, so that the accurate control of a single circuit board on the single heating element is realized, and the consistency of the heating module and the consistency of the after-sale heating module are solved.

Drawings

Fig. 1 is a schematic diagram of a heat dissipation structure of an electronic cigarette heater according to an embodiment of the utility model;

fig. 2 is an assembly schematic diagram of a heat dissipation structure of an electronic cigarette heater according to an embodiment of the utility model;

FIG. 3 is a side cross-sectional view of a heat dissipation structure of an electronic cigarette heater, according to an embodiment of the utility model;

FIG. 4 is a schematic view of a lower shell structure according to an embodiment of the present utility model;

FIG. 5 is a side cross-sectional view of a lower shell according to an embodiment of the present utility model;

FIG. 6 is a schematic view showing the structure of a ceramic heating element according to an embodiment of the present utility model;

fig. 7 is a schematic view of a smoking article carrier assembly according to an embodiment of the utility model;

fig. 8 is a side cross-sectional view of a smoking article carrier assembly according to an embodiment of the utility model

FIG. 9 is a schematic diagram illustrating the cooperation of a heating module and a heating substrate according to an embodiment of the utility model;

fig. 10 is a schematic diagram of an electronic cigarette heater according to an embodiment of the utility model.

Description of the reference numerals

Heating module 10

The device comprises a support shell 1, a communication hole 11, a containing cavity 12, a smoking article jack 13, an upper shell 14, a lower shell 15, a step 16, a sealing ring 17, a wire passing hole 18 and a cleaning channel 19;

a ceramic heating body 2, a heating body 21, a porous channel 211, a heating circuit 22 and a connecting wire 23;

the smoking article carrier assembly 3, the preheating tube 31, the baffle 32, the cavity 33, the first cavity 331, the second cavity 332;

the sealing sleeve 4, the sealing cavity 41, the control circuit 5, the magnetic attraction element 6 and the heat conduction connecting wire 61;

the arrangement space 7, the fixing seat 71, the connecting hole 711 and the mounting groove 712;

heating matrix 8, power module 81, master control circuit 82.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

Therefore, the applicant has found based on many years of intensive researches on the electronic cigarette heater that the heating unit and the control circuit are integrated on the supporting shell to form the heating module, the resistance of the heating module is measured through the instrument when the heating module is produced, the heating module is matched with the control circuit one by one, the accurate control of a single circuit board on a single heating unit is realized, and the consistency of the heating module and the consistency of the after-sale heating module are solved. Meanwhile, the control circuit is connected with the magnetic attraction element through the heat conduction connecting wire, the heat conduction connecting wire conducts the heat of the heating body to the control circuit to the magnetic attraction element, and the heat is dissipated by means of the magnetic attraction element, so that the heat accumulation on the control circuit is reduced.

The following describes a heat dissipation structure of an electronic cigarette heater and an electronic cigarette heater according to embodiments of the present utility model with reference to the accompanying drawings.

Referring to fig. 1 to 10, the heat dissipation structure of the heater for the electronic cigarette provided by the embodiment of the utility model comprises a supporting shell 1, a ceramic heating body 2, a smoking article bearing assembly 3, a sealing sleeve 4, a control circuit 5 and a magnetic element 6.

A receiving chamber 12 having a communication hole 11 at the bottom is formed in the support case 1 to receive the ceramic heating element 2; while the upper portion of the support shell 1 forms a smoking article receptacle 13 in communication with the receiving cavity 12.

Alternatively, the support case 1 is formed by snap-coupling the upper case 14 and the lower case 15, and by snap-coupling, laser welding is not required, reducing the production cost, and at the same time, the upper case 14 may be formed of a material having low temperature resistance, further reducing the cost. The upper shell 14 is provided with a smoking article insertion hole 13; the lower case 15 is provided with a receiving chamber 12. The upper and

lower shells

14, 15 may also be connected by other means.

Specifically, the outer side wall of the lower part of the lower shell 15 forms a step 16, the lower part of the lower shell 15 is sleeved with a sealing ring 17, the sealing ring 17 abuts against the step 16, and when the heating module 10 is connected with the heating matrix 8, the sealing ring 17 is arranged between the heating module 10 and the heating matrix 8.

Alternatively, the support shell 1 is made of Polyetheretherketone (PEEK) such that the support shell 1 has a high melting point, a load heat distortion temperature up to 316 ℃ and an instantaneous use temperature up to 300 ℃ such that the support shell 1 has excellent sliding characteristics, high chemical stability and hydrolysis and flame resistance.

Optionally, a wire through hole 18 is provided in the support shell 1, so that a sealant can be poured into the wire through hole 18 through a connection wire connecting the control circuit 5 and the heating circuit 22, so as to prevent flue gas from entering the heating matrix 8 connected with the heating module 10 through the wire through hole 18.

As shown in fig. 2 to 3, the ceramic heat generating body 2 is placed in the accommodating chamber 12. The ceramic heating body 2 includes a heating body 21 and a heating circuit 22, the heating body 21 is columnar, and a porous channel 211 is provided in the heating body 21, and the heating circuit 22 is provided on the heating body 21 to heat the air passing through the porous channel 211. That is, the heating circuit 22 performs a heating operation after being energized, thereby heating the air passing through the porous passage 211, and realizing a function of uniformly heating the air.

Alternatively, the heat generating body 21 may be cylindrical or polygonal, such as prismatic, square, pentagonal, etc., and the present utility model is not limited thereto. As one example, the heat generating body 21 is a cylinder, and the porous passage 211 is provided in the heat generating body 21 in the axial direction.

The heating circuit 22 is printed on the outer surface of the heating body 21 in a thick film circuit manner, and surrounds the outer surface of the heating body 21 in a heating wire form, for example, and is integrated with the heating body 21. The printed material of the heat generating circuit 22 includes silver, tungsten, or molybdenum manganese. Specifically, the outer wall of the cylindrical honeycomb ceramic heating body 21 is printed with the heating silver paste thick film heating circuit 22 for heating, and as the ceramic heating body 21 adopts a porous honeycomb structure, the heating surface area of the heating body 12 can be greatly increased, and experiments prove that the air can be heated to more than 300 ℃ only by heating the heating body 21 to about 380 ℃, and as the ceramic heating body 21 has higher heat capacity, after each sucking airflow such as 50ml of air passes through the ceramic heating body 2, the temperature reduction is smaller, and only 20-30 ℃.

When the heating circuit 22 is printed on the outer surface of the heating body 21 by adopting a thick film circuit mode, the heating resistance of the heating circuit is generally a PTC thermistor, namely, the temperature rising resistance is increased, and a plurality of temperature rising experiments show that the temperature of the ceramic heating body 2 corresponds to the resistance, so that the temperature of the ceramic heating body 2 can be represented by measuring the resistance value of the resistance. Thus, under the constant voltage power supply of the direct current power supply, the temperature of the heating element 12 can be pulled back to the original temperature within a few seconds by utilizing the self-compensation effect (the temperature of the heating element 12 is reduced, the resistance value of the resistance is reduced, the current is increased and the power is increased) of the thick film heating circuit 22, and the temperature of the heating element 1 can be kept stable and free from fluctuation when no air flows through.

Therefore, in the embodiment of the utility model, the heating body 21 adopts a honeycomb structure, so that the ceramic heating body 2 can provide sufficient heat capacity, and the temperature effect of air flow on the heating body 12 in the simulated smoking process is small, thus the effect of heating air required for smoking a cigarette can be realized by self-adjustment without power compensation. The heater circuit 22 printed on the heater body 21 by the thick film circuit has a clear thermosensitive effect, and the resistance increases with the increase of temperature, and the resistance decreases with the decrease of temperature, so that the heater circuit can be used as a thermal sensor, and therefore, the temperature sensor is not required to control the temperature of the heater 12.

Alternatively, the through holes of the porous channel 211 are circular holes or polygonal holes. Also, as an example, the through holes of the porous channels 211 may be regularly distributed in the heat generating body 21. Alternatively, when the heat generating body 21 is a cylinder, the through holes of the porous channels 211 may be uniformly distributed in the circumferential direction. Alternatively, when the through holes of the porous channel 211 are polygonal holes, they may be distributed in a cylindrical body in a center-symmetrical manner. It is to be understood that the distribution of the through holes of the porous channels 211 is not limited as long as the heat generating body 21 can be defined into a porous honeycomb structure.

Alternatively, the heat generating body 21 is made of aluminum oxide ceramic, aluminum nitride ceramic, silicon carbide ceramic, beryllium oxide ceramic, or zirconium oxide ceramic. Wherein the alumina content in the alumina ceramic is more than 99 percent, and the density of the alumina ceramic is not less than 3.86g/cm ³ 。

Specifically, the ceramic heat-generating body 2 includes a honeycomb heat-generating body 21 made of alumina ceramic, a heat-generating circuit 22, and a connection wire 23. Wherein, the center of the honeycomb heating body 21 is provided with a porous channel 211, the porous channel 211 is a square hole which is uniformly distributed, the heating circuit 22 is arranged on the outer surface of the heating body 21 in a surrounding way, and the head end and the tail end of the heating circuit are provided with connecting wires 23.

In summary, according to the ceramic heating element 2 of the embodiment of the present utility model, the porous channel 211 is provided in the heating body 21, so when the heating circuit 22 heats the air passing through the porous channel 211, the contact area between the heating body 21 and the air can be increased, so that the specific surface area of the honeycomb ceramic body is large, the air can be fully heated, the heating efficiency is high, the ceramic heating body 2 has good thermal conductivity, the purpose of heating the air can be quickly realized, and the flowing speed of the air is limited due to the existence of the porous channel 211, the contact time between the hot air and the smoking article is longer when the smoking article is baked, the heat dissipation is slowed down, the energy is saved, and the porous shape of the ceramic heating body 2 can lock the hot air at the same time when no pumping action is performed, so that the external flow of the hot air is reduced, and the energy is further saved. In addition, as the surface compactness of the ceramic heating body 2 is very high, the adsorption of smoke dust particles can be effectively prevented, and the effect of preventing peculiar smell is achieved.

The smoking article carrier assembly 3 is disposed in the receiving cavity 12 and the cavity defined by the smoking article carrier assembly 3 is adapted to receive a smoking article, optionally the smoking article carrier assembly 3 separating the smoking article from the ceramic heat generating body 2.

When the scheme of the electronic cigarette heater in which the smoking article is not in direct contact with the ceramic heating body 2 is adopted, the smoking article bearing assembly 3 needs to be capable of providing a preparation working temperature of 200-220 ℃, so that a bearing part for placing the smoking article, namely the preheating pipe 31, is required to have a preheating function. In order to prevent the smoking article from directly contacting the ceramic heating body 2, a baffle 32 is arranged at the bottom of the preheating pipe 31 or in a defined cavity 33 to play a limiting role. Through repeated experiments, the baffle 32 not only can effectively isolate the smoke-producing article from the ceramic heating body 2, but also can prevent tobacco tar educts generated in the smoking process of the smoke-producing article from condensing on the ceramic heating body 2 and the baffle 32, and the repeated smoking naturally generates a self-cleaning effect, is not easy to retain peculiar smell, does not need to be cleaned frequently, and has higher use value.

Thus, as shown in connection with fig. 7 to 8, the smoking article carrying assembly 3 comprises a pre-heating tube 31 and a baffle 32. The baffle 32 is disposed within the cavity 33 defined by the preheating tube to divide the cavity 33 into a first cavity 331 and a second cavity 332, wherein the first cavity 331 is adapted to house a portion of a smoking article and is also capable of preheating the smoking article, and the second cavity 332 is adapted to house at least a portion of the ceramic heat generator 2. When the ceramic heating body 2 heats, the flow guide sheet separates the ceramic heating body 2 from the smoking article, so that the ceramic heating body 2 can be effectively prevented from being directly contacted with the smoking article or being too close to the smoking article, and the part of the smoking article, which is close to the ceramic heating body 2, is prevented from being heated to be more than 320 ℃ to cause scorching.

Optionally, the baffles 32 are configured as a stepped surface extending centrally along the preheated tube wall. Specifically, as shown in fig. 6, the number of the baffle plates 32 may be two, and the two baffle plates 32 are disposed opposite to each other, so that the ceramic heating element 2 and the smoking article can be effectively separated in the cavity 33, and the ceramic heating element 2 can be effectively prevented from being directly contacted with the smoking article or from being too close to each other, so that the part of the smoking article, which is close to the ceramic heating element 2, is prevented from being heated to more than 320 ℃ to cause scorching. And, when the user draws the smoking article, the hot air can circulate rapidly from the gap between the two baffles 32, and the smoking article can be baked uniformly and rapidly. Alternatively, the preheating tube 31 may be a ceramic tube, wherein the ceramic tube is made of aluminum oxide ceramic, aluminum nitride ceramic, silicon carbide ceramic, beryllium oxide ceramic, or zirconium oxide ceramic.

As shown in connection with fig. 2, the sealing sleeve 4 is hollow to house the ceramic heater 2 and the smoking article carrying assembly 3. Optionally, the sealing sleeve 4 is formed by sleeving two layers of sleeves, and the two layers of sleeves are sealed to form a sealing cavity 41, and the sealing cavity 41 is arranged in vacuum to reduce heat transfer of the ceramic heating body 2.

The sealing sleeve 4 adopts the sleeve sleeving mode to form a hollow pipe with the sealing cavity 41, and the sealing cavity 41 is arranged in vacuum, so that heat conduction to the outer wall of the electronic cigarette heater can be reduced, the temperature of the outer wall is greatly reduced, and the influence on user experience caused by overhigh temperature of the outer wall is avoided.

Therefore, the sealing sleeve 4 is made of a vacuum sleeve, heat generated by the ceramic heating body 2 can be reduced to be transmitted outwards, the heat insulation effect is achieved, the outer wall temperature of an appliance can be effectively reduced, the user experience is greatly improved, the sealing sleeve 4 does not need to be additionally provided with a sealing cavity 41 for cooling liquid, the structure is greatly simplified, and the cost is reduced.

As shown in fig. 2, a control circuit 5 is provided on the support case 1, and the control circuit 5 is connected to the heat generating circuit 22. The control circuit 5 is arranged on the support shell 1 and is connected with the heating circuit 22, namely, the heating unit 12 and the control circuit 5 are integrated on the support shell 1 to form the heating module 10, the resistance of the heating module 10 is measured through an instrument when the heating module is produced, the heating module is matched with the control circuit 5 one by one, the precise control of a single circuit board on the single heating unit 12 is realized, and the consistency of the heating module 10 and the consistency of the after-sale heating module 10 are solved.

Because the electronic cigarette stores tobacco tar in the electronic cigarette in the long-term use process, the smoking taste is changed, and therefore the heating component needs to be replaced, and because the frequency of replacing the heating component is higher and the frequency of replacing the power supply module 81 and the main control circuit 82 which are matched with the heating component is lower, the heating module 10, the power supply module 81 and the main control circuit 82 can be replaced separately, so that the use cost is reduced, and the resource waste is reduced.

Optionally, a cleaning passage 19 is provided on the support case 1, and the cleaning passage 19 communicates with the communication hole 11 and the porous passage 211 in the heat generating body 21. Air enters the porous channel 211 in the heating body 2 through the cleaning channel 19, and when tobacco tar is condensed in the cleaning channel 19, the heating component can be not replaced, so that the cleaning channel 19 can be cleaned, and the cleaning is simple and effective. When the cartridge reaches the smoke temperature, smoke is released even if the cartridge is not drawn, and the smoke passes through the porous channels 211 in the heating body 21 from top to bottom, and floats in the cavity at the bottom and the upper part of the heating body 21, similar to the sidestream smoke (or static smoke) of a cigarette. When the cold air enters during suction, the temperature of a smoke gathering place can be reduced, part of smoke can condense a small amount of smoke tar, and the smoke gradually accumulates along with the increase of the suction times. And therefore require periodic cleaning. The heating module 10 and the cleaning channel 19 can be cleaned more simply. When the cleaning is needed, the cleaning channel 19 is cleaned by using auxiliary tools such as a cotton swab and the like without using special cleaning tools, so that the cleaning is simpler and more effective.

Specifically, the cleaning channels 19 are radially arranged on the support shell 1, the cleaning channels 19 are intersected with the heating body 21, specifically, the cleaning channels 19 are perpendicular to the heating body 21, so that the cleaning channels 19 are communicated with the porous channels 211 in the heating body 21 conveniently, and air circulation is smooth. Further, the aperture of the cleaning channel 19 is 2-10mm, and when tobacco tar is condensed in the cleaning channel 19, the cleaning channel 19 can be cleaned by using a cotton swab.

The magnetic attraction element 6 is arranged on the support shell 1, and a heat conduction connecting wire 61 is connected between the magnetic attraction element 6 and the control circuit 5. The heating circuit 22 is connected to the control circuit 5 by a connecting wire 23, typically by soldering, and then the heat conductive connecting wire 61 is soldered from the soldered portion, and the heat conductive connecting wire 61 is soldered to the magnetic attraction element 6.

Because the control circuit 5 and the heating body 21 are integrated on the supporting shell 1, the control circuit 5 is relatively close to the heating body 21, and the heating body 21 is connected with the control circuit 5 through a wire, heat generated by the heating body 21 is continuously conducted to the control circuit 5, and if the heat is continuously accumulated on the control circuit 5, the use function of the control circuit 5 is affected, and even the control circuit 5 may be damaged.

The heat conducting connection wire 61 further conducts the heat conducted from the heating body 21 to the control circuit 5 to the magnetic attraction element 6, and radiates heat by means of the magnetic attraction element 6, so as to reduce the heat accumulation on the control circuit 5. The magnetic attraction element 6 also serves as a connecting piece between the heating module 10 and the heating matrix 8, and the heating module 10 is connected with the heating matrix 8 through the mutual attraction of the magnetic attraction element 6. Optionally, a heat conducting connecting wire 61 is led out from the connection part of the control circuit 5 and the heating circuit 22 and is connected with the magnetic attraction element 6.

Alternatively, the lower portion of the support case 1 defines a setting space 7 for setting the control circuit 5. Specifically, the setting space 7 is also provided with a fixing seat 71, the fixing seat 71 and the control circuit 5 are sequentially arranged, the fixing seat 71 is provided with a magnetic element 6, and a connecting hole 711 for a PIN needle to pass through and be connected with the control circuit 5 is also formed. The fixing base 71 is provided with a mounting groove 712 having a shape matching that of the magnetic attraction element 6, and the magnetic attraction element 6 is provided in the mounting groove 712.

Referring to fig. 9 and 10, an electronic cigarette heater according to an embodiment of the present utility model includes an electronic cigarette heating module 10 and a heating substrate 8 as described above; the heating matrix 8 is connected with and supplies power to the electronic cigarette heating module 10.

Optionally, the lower part of the supporting shell 1 of the electronic cigarette heating module 10 is provided with a magnetic attraction element 6, the heating matrix 8 is correspondingly provided with the magnetic attraction element 6, and the heating matrix 8 and the electronic cigarette heating module 10 are connected with each other through the magnetic attraction element 6. Specifically, the lower portion of the support housing 1 defines a setting space 7, a fixing seat 71 is provided in the setting space 7, a magnetic attraction element 6 is provided on the fixing seat 71, and a connection hole 711 for passing a PIN needle is provided to be connected with the control circuit 5. The fixing base 71 is provided with a mounting groove 712 having a shape matching that of the magnetic attraction element 6, and the magnetic attraction element 6 is provided in the mounting groove 712.

Optionally, the heating substrate 8 is provided with a power supply module 81 and a main control circuit 82, and the power supply module 81 supplies power to the main control circuit 82. The main control circuit 82 is connected with the control circuit 5, specifically, the main control circuit 82 is connected with a PIN, the PIN passes through a connecting hole 711 arranged on the fixing seat 71 of the heating film set 10, and the PIN is connected with the control circuit 5, namely, the main control circuit 82 is connected with the control circuit 5 through PIN plug-in connection.

Optionally, the main control circuit 82 and the control circuit 5 can be in communication through TX, RX, GND three-wire connection, the main control circuit 82 and the control circuit 5 can be powered through wire welding, and five communication wires can be integrated into a connector to be connected in a plugging mode.

Alternatively, the temperature control curve of the ceramic heating body 2 may be stored in the main control circuit 82, and the main control circuit 82 instructs the control circuit of the heating module 10, for example, the control circuit of the heating module 10 is responsible for executing the temperature control strategy, for example, the control circuit of the heating module 10 is operated at 350 ℃ for 10S and at 340 ℃. Or, the temperature control curve is stored in the control circuit 5 of the heating module 10, and the main control circuit 82 is only responsible for sending instructions of startup and shutdown to the control circuit 5 of the heating module 10, so that the whole temperature control process is independently completed by the control circuit 5 of the heating module 10.

To sum up, the heating module 10 forms the heating module 10 through integrating the heat-generating body and the control circuit 5 on the supporting shell 1, and the resistance is measured through the instrument to the heating module 10 when producing, matches one by one with the control circuit 5, realizes the accurate control of single circuit board to single heat-generating body, solves the uniformity of heating module 10 and the uniformity of after-sale change heating module 10. Because the heater stores tobacco tar in the heater in the long-term use process, the sucked taste is changed, and therefore the heating component needs to be replaced, and because the frequency of replacing the heating component is higher and the frequency of replacing the heating matrix 8 matched with the heating component is lower, the heating module 10 and the heating matrix 8 can be replaced separately, so that the use cost is reduced, and the resource waste is reduced.

Meanwhile, the magnetic attraction element 6 is arranged on the support shell 1, a heat conduction connecting wire is connected between the magnetic attraction element 6 and the control circuit 5, the heat conducted from the heating body 21 to the control circuit 5 is further conducted to the magnetic attraction element 6 by the heat conduction connecting wire 61, and heat is dissipated by means of the magnetic attraction element 6, so that heat accumulation on the control circuit 5 is reduced.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. An electronic cigarette heater heat radiation structure, characterized by comprising:

2. The electronic cigarette heater radiating structure of claim 1 wherein the heat conducting connection wire is led out from the connection of the control circuit and the heating circuit and connected with the magnetic attraction element.

3. The electronic cigarette heater radiating structure of claim 1 wherein the lower portion of the support housing defines a space for the control circuit.

4. The heat dissipation structure of an electronic cigarette heater according to claim 3, wherein a fixing seat is further arranged in the setting space, the fixing seat and the control circuit are sequentially arranged, a magnetic element is arranged on the fixing seat, and a connecting hole for a PIN to pass through is formed in the fixing seat.

5. The heat dissipation structure of an electronic cigarette heater according to claim 4, wherein the fixing base is provided with a mounting groove with a shape matched with that of the magnetic element, and the magnetic element is arranged in the mounting groove.

6. The electronic cigarette heater heat dissipation structure of claim 1, wherein the support housing is provided with a wire via for passing through a connection wire connecting the control circuit and the heat generating circuit.

7. The electronic cigarette heater heat dissipation structure of claim 1, wherein the support shell is formed by connecting an upper shell and a lower shell, and the upper shell is provided with a smoking article jack; the lower case is provided with the accommodation chamber.

8. The heat dissipation structure of an e-cigarette heater according to claim 7, wherein the outer side wall of the lower portion of the lower case forms a step, and a sealing ring abutting against the step is sleeved on the lower portion of the lower case.