CN216147265U

CN216147265U - Heating assembly and electronic atomizer

Info

Publication number: CN216147265U
Application number: CN202121122328.2U
Authority: CN
Inventors: 周宏明; 肖俊杰; 余雄; 刘滔文; 刘星
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2022-04-01
Anticipated expiration: 2031-05-24
Also published as: WO2022247556A1

Abstract

The utility model relates to a heating assembly and an electronic atomizer. The heating assembly generates heat through electromagnetic induction and comprises a first shell and a hollow conductive coil, wherein the first shell is provided with a heating cavity for accommodating an object to be heated, the conductive coil is sleeved on the first shell, a hollow part of the conductive coil forms a fluid channel for gas circulation, and the fluid channel is communicated with the heating cavity so that gas in the fluid channel can enter the heating cavity. This heating element's heat utilization rate is high and be difficult to make electronic atomizer hair perm.

Description

Heating assembly and electronic atomizer

Technical Field

The utility model relates to the technical field of atomization, in particular to a heating assembly and an electronic atomizer.

Background

Electronic atomizers release aerosols by heating the atomizing medium or atomizing medium carrier (e.g., the cartridge) with a heat-generating body.

At present, the main heat generating modes of the electronic atomizer include electromagnetic induction heating and resistance heating, in which alternating current is used to generate heat through the action between an alternating magnetic field generated by a coil and metal, and the metal generates heat. However, the housing of the electronic atomizer using electromagnetic induction heating is easily scalded; in addition, the utilization rate of the heat generated by electromagnetic induction still needs to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a heating assembly that can improve heat utilization and can make the housing of an electronic atomizer less prone to scalding.

A heating assembly that generates heat by electromagnetic induction, the heating assembly comprising:

a first housing having a heating cavity for accommodating an object to be heated; and

the hollow conductive coil is sleeved on the first shell, a fluid channel for gas circulation is formed in the hollow part of the conductive coil, and the fluid channel is communicated with the heating cavity.

The heating assembly comprises a first shell and a hollow conductive coil, and the hollow conductive coil is used as a conductive coil for electromagnetic induction heating and a channel for external air to enter the heating cavity in the heating assembly. When the heating device is used, the external air enters the heating cavity from the conductive coil, the temperature around the conductive coil can be reduced, the shell accommodating the heating assembly is not easy to scald, meanwhile, the external air enters the heating cavity after being heated to further heat an object to be heated in the heating cavity, the loss of heat generated by electromagnetic induction is reduced, and the heat utilization rate is improved.

In one embodiment, the heating assembly further comprises a second housing, the conductive coil is located in the second housing, the second housing is provided with a containing cavity, the first housing is located in the containing cavity, and the containing cavity is communicated with the heating cavity.

In one embodiment, the cavity wall of the heating cavity is hermetically connected with the cavity wall of the containing cavity, and the heating cavity is communicated with the upper part of the containing cavity;

or the cavity wall of the heating cavity and the cavity wall of the accommodating cavity are arranged at intervals.

In one embodiment, the heating cavity is provided with a cavity opening for placing the object to be heated and a cavity bottom opposite to the cavity opening, and the fluid channel is provided with an air inlet and an air outlet communicated with the air inlet; the air inlet is close to at the bottom of the chamber and with the exterior space intercommunication, the gas outlet be close to the accent and with accept the chamber intercommunication, perhaps, the air inlet is close to the accent and with the exterior space intercommunication, the gas outlet be close to at the bottom of the chamber and with the heating chamber intercommunication.

In one embodiment, the second housing includes an insertion portion and a hollow main body portion, the insertion portion is connected with the main body portion in a sealing mode and is enclosed to form the accommodating cavity, the insertion portion is provided with an insertion opening, the insertion opening corresponds to the heating cavity, and the insertion opening is used for being matched with an object to be heated.

In one embodiment, the insertion opening has a transverse dimension that is less than a corresponding transverse dimension of the heating cavity.

In one embodiment, the transverse dimension of the insertion opening is 2mm to 8mm smaller than the corresponding transverse dimension of the heating cavity.

In one embodiment, the insert is an elastic member.

In one embodiment, the conductive coil is embedded in the cavity wall of the accommodating cavity, and the conductive coil is close to the first shell and is spaced from the first shell.

In one embodiment, the conductive coil is helical;

and/or the thickness of the wall of the conductive coil is 1 mm-2 mm;

and/or the inner diameter of the conductive coil is 1 mm-4 mm;

and/or the conductive coil is a copper coil.

In one embodiment, the heating assembly further comprises insulating pipes which are arranged at two ends of the conductive coil and are correspondingly communicated with the hollow part of the conductive coil.

In one embodiment, the first housing is a magnetically conductive housing that heats up after the conductive coil is energized.

In one embodiment, the heating device further comprises a magnetic conductive insert, the magnetic conductive insert is disposed in the heating cavity, the first housing is a non-magnetic conductive housing, and the magnetic conductive insert generates heat after the conductive coil is energized.

An electronic atomizer comprises a power supply, a controller and the heating assembly, wherein the power supply is electrically connected with the controller, the controller is electrically connected with a conductive coil of the heating assembly, and the controller is used for controlling current flowing to the conductive coil.

Drawings

FIG. 1 is a schematic structural diagram of an electronic atomizer according to an embodiment;

FIG. 2 is an enlarged view of a portion of the electronic atomizer shown in FIG. 1;

fig. 3 is a structure of a conductive coil of the electronic atomizer shown in fig. 2.

Reference numerals:

10. an electronic atomizer; 20. an object to be heated; 110. a power source; 120. a controller; 130. a heating assembly; 131. a first housing; 131a, a heating cavity; 132. a second housing; 132b, an insertion portion; 132c, a main body portion; 132d, insertion port; 133. a conductive coil; 135. an air inlet; 136. and an air outlet.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Some embodiments of the utility model are presented 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 in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 and 2 (the straight arrows in fig. 1 and 2 both represent the gas flow direction), an embodiment of the present application provides an electronic atomizer 10 for heating an object 20 to be heated, the electronic atomizer 10 includes a power source 110, a controller 120 and a heating assembly 130, the power source 110 is electrically connected to the controller 120, the controller 120 is electrically connected to the heating assembly 130, the power source 110 supplies power to the heating assembly 130, and the controller 120 is used for controlling the current input from the power source 110 to the heating assembly 130. Optionally, the object 20 to be heated is an atomizing medium carrier (e.g., a cartomizer). It will be appreciated that in other embodiments, the object 20 to be heated is not limited to an atomizing medium carrier, but may be other objects.

Referring to fig. 2 and 3, the heating assembly 130 includes a second housing 132, a first housing 131 received in the second housing 132, and a hollow conductive coil 133. Specifically, the second housing 132 has an accommodating chamber for accommodating the first housing 131. Optionally, the second housing 132 is cylindrical, quadrangular or ellipsoidal. It is understood that the shape of the second housing 132 is not particularly limited, and the first housing 131 and the conductive coil 133 may be accommodated therein. Of course, the second housing 132 may also be used to house other components of the electronic atomizer 10. For example, in the illustrated embodiment, the power source 110 and the controller 120 are also housed within the second housing 132. The material of the second housing 132 is not particularly limited. For example, the second housing 132 may be a metal second housing 132 or a plastic second housing 132.

More specifically, the second housing 132 includes an insertion portion 132b and a hollow main body portion 132c, the insertion portion 132b and the main body portion 132c are hermetically connected and enclosed to form an accommodation chamber, and the insertion portion 132b has an insertion opening 132d through which the object 20 to be heated is inserted into the first housing 131. The insertion opening 132d has a lateral dimension smaller than a corresponding lateral dimension of the heating chamber 131 a. At this time, the insertion portion 132b is also a member that fixes the object 20 to be heated, and the insertion port 132d is set to have a lateral dimension smaller than the corresponding lateral dimension of the heating chamber 131a, so that also after the object 20 to be heated is inserted into the heating chamber 131a, there is a gap between the object 20 to be heated and the heating chamber 131a, so that the object 20 to be heated is heated by the preheated air that the fluid passage enters. Further, the lateral dimension of the insertion port 132d is smaller than the corresponding lateral dimension of the heating chamber 131a by 2 to 8 mm. It should be noted that, in this context, the lateral dimension refers to the dimension in the cross section of the element, for example, the lateral dimension of the insertion opening 132d refers to the dimension in the cross section of the insertion opening 132 d; if the insertion opening 132d has a circular cross section, the transverse dimension of the insertion opening 132d is the diameter of the circle; if the insertion opening 132d has a rectangular cross section, the lateral dimension of the insertion opening 132d is the length or width of the rectangle.

Alternatively, the insertion portion 132b is sheet-shaped, the main body portion 132c is cup-shaped with an opening, the insertion portion 132b is located on the main body portion 132c, and the edge of the insertion portion 132b is hermetically connected with the edge of the main body portion 132c near the opening thereof, and the insertion port 132d is communicated with the hollow portion of the main body portion 132 c. Of course, the body portion 132c may have a hollow structure with both ends open. It is understood that in some embodiments, the second housing 132 may be omitted. In this case, when in use, the second housing 132 which may be additionally configured with the heating assembly 130 may be used.

Alternatively, the insertion portion 132b is an elastic member. By providing the insertion portion 132b as an elastic member, the air flowing into the second housing 132 does not flow out from the gap between the insertion port 132d and the object 20 to be heated after the object 20 to be heated is inserted into the heating cavity 131 a. Of course, the insertion portion 132b also has a limiting and fixing function for the object 20 to be heated. In one particular example, the insert portion 132b is a V-shaped compressible rubber structure.

The first housing 131 has a heating cavity 131a for accommodating the object 20 to be heated, the heating cavity 131a is communicated with the accommodating cavity, the conductive coil 133 is sleeved outside the first housing 131, and a hollow part of the conductive coil 133 forms a fluid passage for gas to flow through, and the fluid passage is communicated with the heating cavity 131 a.

In use, ambient air enters the conductive coil 133 from one end of the conductive coil and enters the heating cavity 131a as the conductive coil 133 flows around the first housing 131. The external air is heated while flowing in the conductive coil 133 to gradually increase the temperature, and has an effect of heating the object 20 to be heated after flowing into the heating cavity 131a, and simultaneously has an effect of reducing the temperature outside the first housing 131 due to the fact that the air flows in the conductive coil 133 to take away part of the heat radiated from the heat source, and has a heat insulation effect. Therefore, the hollow conductive coil 133 not only serves as the conductive coil 133 in electromagnetic induction heating, but also serves as a passage for air circulation, so that heat loss can be reduced, the heat utilization rate can be improved, the temperature outside the second shell 132 can be reduced, and a heat insulation effect can be achieved. Further, the above arrangement is more space-saving than the manner in which the air chamber is separately provided to heat the object 20 to be heated.

The fluid passage has an air inlet 135 and an air outlet 136, the air inlet 135 communicates with the external space, and the air outlet 136 communicates with the heating chamber 131 a; the heating cavity 131a has an opening into which the object 20 to be heated is placed and a cavity bottom opposite to the opening. In the illustrated embodiment, the air inlet 135 is adjacent to the bottom of the heating cavity 131a, and the air outlet 136 is adjacent to the opening of the heating cavity 131a or to the insertion opening 132 d. In use, ambient air enters the housing cavity from the electrically conductive coil 133 and flows along the cavity wall of the heating cavity 131a towards the bottom of the heating cavity 131a, thereby heating the object 20 to be heated placed in the heating cavity 131a and lowering the temperature of the electrically conductive coil 133. It is understood that in other embodiments, the locations of the air inlet 135 and the air outlet 136 are not limited to those described above. For example, it may also be: the air inlet 135 is close to the mouth or insertion opening 132d of the heating cavity 131a, and the air outlet 136 is close to the bottom of the heating cavity 131 a; alternatively, both the air inlet 135 and the air outlet 136 are close to the insertion opening 132 d; alternatively, both the inlet 135 and the outlet are proximate to the bottom of the heating cavity 131 a.

Optionally, the cavity wall of the heating cavity 131a is hermetically connected with the cavity wall of the receiving cavity. Specifically, the first housing 131 is hermetically connected to the body portion 132 c. In one embodiment, the air inlet 135 is adjacent to the bottom of the heating cavity 131a and the air outlet 136 is adjacent to the insertion opening 132 d. At this time, the gas introduced from the fluid passage enters the heating chamber 131a through a portion of the receiving chamber near the insertion port 132d, heats the object 20 to be heated placed in the heating chamber 131a, and lowers the temperature of the conductive coil 133. In another embodiment, the air inlet 135 is adjacent to the insertion opening 132d, and the air outlet 136 is adjacent to the bottom of the heating cavity 131 a. At this time, the cavity bottom of the heating cavity 131a is further provided with a through hole, and the gas entering from the circulation passage enters the heating cavity 131a through the through hole on the cavity bottom of the heating cavity 131a, heats the object 20 to be heated placed in the heating cavity 131a, and lowers the temperature of the conductive coil 133.

In some embodiments, the first housing 131 is cup-shaped and has an open end facing the insertion opening 132d, and the open end of the first housing 131 is hermetically connected to the main body 132 c. In other embodiments, the first housing 131 is a tubular structure with two open ends, a center line of the first housing 131 is parallel to a center line of the second housing 132, an end of the first housing 131 away from the insertion opening 132d is connected to an end of the main body 132c away from the insertion opening 132d in a sealing manner to form the heating cavity 131a, and an end of the first housing 131 facing the insertion opening 132d is connected to a position of the main body 132c close to the insertion portion 132b in a sealing manner. It is understood that, in other embodiments, the cavity wall of the heating cavity 131a and the cavity wall of the receiving cavity may be spaced apart. That is, the opening end of the first housing 131 is spaced apart from the body portion 132 c. When the cavity wall of the heating cavity 131a and the cavity wall of the accommodating cavity are arranged at intervals, part of the gas is located between the first housing 131 and the second housing 132; if the bottom of the heating cavity 131a is opened with a through hole, the gas flowing from the fluid passage can still enter the heating cavity 131a through the through hole after passing through the space between the first housing 131 and the second housing 132.

In some embodiments, the conductive coil 133 is not in direct contact with the outer surface of the first housing 131, and the conductive coil 133 is spaced apart from the outer surface of the first housing 131. The interval between the conductive coil 133 and the first casing 131 can prolong the service life of the conductive coil 133 when the first casing 131 is a heating body, and has a heat insulation effect. It is understood that in other embodiments, the conductive coil 133 may be in direct contact with the outer surface of the first housing 131, and the conductive coil 133 may be directly wound on the outer surface of the first housing 131.

Optionally, the number of turns of the conductive coil 133 is 8-24. Of course, in other embodiments, the number of turns of the conductive coil 133 is not limited to the above, and may be adjusted according to actual situations. Optionally, the thickness of the wall of the conductive coil 133 is 1mm to 2 mm; the inner diameter of the conductive coil 133 is 1mm to 4 mm. The thickness of the wall of the conductive coil 133 and the inner diameter of the coil are set as described above to satisfy the air flow resistance and not too large. Further, the thickness of the wall of the conductive coil 133 is 1.5mm to 2 mm; the inner diameter of the conductive coil 133 is 1.5mm to 3.5 mm. It should be noted that, the inner diameter of the conductive coil 133 herein refers to the diameter of the hollow portion of the conductive coil 133, i.e., the diameter of the fluid channel. Optionally, conductive coil 133 is a copper coil. Of course, the conductive coil 133 is not limited to a copper coil, but may be a coil made of other conductive materials, such as an aluminum coil, a silver coil, or a gold coil.

In the embodiment shown in fig. 3, conductive coil 133 is helical, and conductive coil 133 is a single layer. The helical arrangement may increase the flow path of the air in the conductive coil 133, so that the air is sufficiently heated and the conductive coil 133 is sufficiently cooled. It is understood that in other embodiments, the number of layers of the conductive coil 133 is not limited to a single layer, but may be multiple layers, such as two or three layers. The number of layers of the coil is a plurality of layers, and the coil is wound with at least one layer of coil on the basis of a single-layer coil.

In the embodiment shown in fig. 2, the conductive coil 133 is embedded entirely in the wall of the receiving cavity and is adjacent to the first housing 131. That is, the conductive coil 133 is completely embedded in the second housing 132 and is adjacent to the first housing 131. It is understood that in other embodiments, the position of the conductive coil 133 is not limited to being embedded in the cavity wall embedded in the receiving cavity, and may be partially embedded in the cavity wall of the receiving cavity or located between the outer surface of the first housing 131 and the cavity wall of the receiving cavity.

In some embodiments, the heating assembly 130 further comprises two insulating tubes, the conductive coil 133 is positioned between the two insulating tubes, the fluid passage is in communication with the hollow portions of both the two insulating tubes, and the hollow portion of one of the two insulating tubes is in communication with the heating cavity 131 a. The arrangement of the insulating tube can ensure the reliable insulation of the electronic atomizer 10. Optionally, the insulating tube is a polyetheretherketone (peek) tube. The insulating tube is electrically connected to the PCB board of the controller 120 by means of a soldered wire.

In some embodiments, the first housing 131 is a magnetically conductive housing. At this time, the first case 131 also serves as a heat generation source. In use, the object 20 to be heated is placed in the heating cavity 131a, the conductive coil 133 is energized, the first housing 131 generates heat due to electromagnetic induction, and the air around the object 20 to be heated is heated to heat the object 20 to be heated; meanwhile, the first housing 131 that generates heat also heats the conductive coil 133 that is sleeved thereon, so that the air flowing in the conductive coil 133 is also heated, and the heated air flows into the heating cavity 131a and then further heats the object 20 to be heated. Therefore, at this time, the heat reception of the object 20 to be heated in the heating cavity 131a comes from two portions: the external hot air and the first housing 131 generate heat. When the first casing 131 is provided as a magnetic conductive casing, the first casing 131 generates heat as a heat source and does not directly contact the object 20 to be heated, so that the first casing 131 is not easily contaminated and can be easily cleaned. Also, when the first housing 131 is a magnetic conductive housing, the heating element 130 heats the air around the object 20 to be heated by the heat generated by the first housing 131, and further heats the object 20 to be heated (i.e., air heating), and the heat is conducted in the air with a lower efficiency than the metal pipe, so that the object 20 to be heated is not heated too quickly during the heating process, and the object 20 to be heated can be heated more uniformly.

Optionally, an installation position of the object to be heated is arranged in the heating cavity 131a, and an interval of 1mm to 4mm is formed between the installation position and the cavity wall of the heating cavity 131 a. When the object 20 to be heated is placed at the installation site, there is an interval of 1mm to 4mm between the object 20 to be heated and the cavity wall of the heating cavity 131 a. Setting the interval between the object 20 to be heated and the cavity wall of the heating cavity 131a to 1mm to 4mm can satisfy the condition that the airflow in the fluid passage can sufficiently enter the gap between the object 20 to be heated and the cavity wall of the heating cavity 131a while the volume of the heating cavity 131a is not too large. It will be appreciated that in other embodiments, the mounting location may be located on the insertion end. In other embodiments, the first housing 131 is a non-magnetically conductive housing. In this case, the heating assembly 130 further includes a magnetic conductive insert fixed on the bottom wall of the heating cavity 131 a. In use, the object 20 to be heated is placed in the heating cavity 131a and inserted on the magnetically conductive insert, the electrically conductive coil 133 is energized, and the magnetically conductive insert generates heat due to electromagnetic induction, thereby heating the object 20 to be heated from the center of the object 20 to be heated; meanwhile, the heating magnetic conductive insert also heats the conductive coil 133 sleeved on the first housing 131, so that the air flowing in the conductive coil 133 is also heated, and the heated air flows into the heating cavity 131a and then further heats the object 20 to be heated. That is, the object 20 to be heated in the heating cavity 131a is heated from the hot air and the magnetically conductive insert. Optionally, the material of the non-magnetic conductive shell is a non-metal material or a metal non-magnetic conductive material. It is understood that in some embodiments, the first casing 131 is a magnetic conductive casing, and the heating assembly 130 further includes a magnetic conductive insert, in which case both the first casing 131 and the magnetic conductive insert can be used as heat generators.

Optionally, the first housing 131 is a metal housing. For example, iron housings, 316 stainless steel housings. The magnetic conduction plug-in components are iron plug-in components or 316 stainless steel plug-in components. Certainly, when the first casing 131 is a magnetic conductive casing, the material of the first casing 131 is not limited to iron, iron alloy or 316 stainless steel, and may be other magnetic conductive materials capable of generating heat with the conductive coil 133 through electromagnetic action; the material of the magnetic insert is not limited to iron, iron alloy or 316 stainless steel, and may be other magnetic materials capable of generating heat with the conductive coil 133 through electromagnetic action.

When the heating assembly 130 is in use, the external air enters the fluid channel from the air inlet 135 of the fluid channel of the conductive coil 133, and flows out from the air outlet 136 to enter the heating cavity 131a, the first housing 131 and/or the magnetic conductive insert generates heat due to battery induction after being electrified, so as to directly and/or indirectly heat the object 20 to be heated, meanwhile, the air is gradually heated into hot air by the heat radiated by the first housing 131 or/and the magnetic conductive insert during the flowing process in the fluid channel, so as to further heat the object 20 to be heated after entering the heating cavity 131 a. The heating assembly 130 described above has at least the following advantages:

(1) the arrangement of the hollow conductive coil 133 enables the conductive coil 133 to serve as a conductive coil 133 in electromagnetic induction heating and also serve as a fluid channel for allowing outside air to enter the first shell 131, so that a part of heat originally lost by electromagnetic induction can be reused while the conductive coil 133 can dissipate heat, the heat utilization rate can be improved, the heat transfer of the coil to the second shell 132 is reduced, the temperature of the appearance of the electronic atomizer 10 is reduced, and the heat insulation effect is achieved.

(2) Hollow conductive coil 133 has superimposed electrically conductive and circulation of air's function, can realize air heating, compares with the air heating of traditional air chamber of setting up alone, can more save space, can make electronic atomizer 10's size littleer.

(3) By providing the first casing 131 as a magnetically conductive casing, it is possible to make the first casing 131 function as a heat generating member in electromagnetic induction heating, while setting the size of the first casing 131 to have intervals when the objects 20 to be heated are placed therein, achieving air heating of the objects 20 to be heated, which makes the temperature to which the objects 20 to be heated are heated more uniform. For example, when the object 20 to be heated is an atomizing medium carrier, the texture and the heating time have a more significant relationship, and compared with the direct contact conduction heating method, the air heating is non-contact heating, and after the suction requirement is met, the change of the heating time does not cause great change of the texture, so that the texture is more stable. In addition, the first housing 131 is sized to have the atomized media carriers spaced apart when placed therein, which also prevents the atomized media carriers from directly contacting the heat generating source, reducing the formation and residue of dirt, and eliminating the need for substantial cleaning.

The electronic atomizer 10 including the heating assembly 130 has corresponding advantages.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

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 utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A heating assembly, wherein the heating assembly generates heat by electromagnetic induction, the heating assembly comprising:

the hollow conductive coil is sleeved outside the first shell, a fluid channel for gas circulation is formed in the hollow part of the conductive coil, and the fluid channel is communicated with the heating cavity.

2. The heating element of claim 1, further comprising a second housing, wherein the conductive coil is located within the second housing, wherein the second housing has a receiving cavity, wherein the first housing is located within the receiving cavity, and wherein the receiving cavity is in communication with the heating cavity.

3. The heating assembly of claim 2, wherein the cavity wall of the heating cavity is in sealed connection with the cavity wall of the receiving cavity, and the heating cavity is communicated with the upper part of the receiving cavity;

4. The heating assembly of claim 2 wherein the heating cavity has an opening for insertion of the object to be heated and a cavity floor opposite the opening, the fluid passageway having an air inlet and an air outlet in communication with the air inlet; the air inlet is close to at the bottom of the chamber and with the exterior space intercommunication, the gas outlet be close to the accent and with accept the chamber intercommunication, perhaps, the air inlet is close to the accent and with the exterior space intercommunication, the gas outlet be close to at the bottom of the chamber and with the heating chamber intercommunication.

5. The heating assembly of claim 2, wherein the second housing comprises an insertion portion and a hollow main body portion, the insertion portion is connected with the main body portion in a sealing mode and is enclosed to form the accommodating cavity, the insertion portion is provided with an insertion opening, the insertion opening corresponds to the heating cavity, and the insertion opening is used for being matched with an object to be heated.

6. The heating assembly of claim 5 wherein the insertion opening has a transverse dimension that is less than a corresponding transverse dimension of the heating cavity.

7. The heating assembly of claim 6 wherein the transverse dimension of the insertion opening is between 2mm and 8mm less than the corresponding transverse dimension of the heating cavity.

8. The heating assembly of claim 6, wherein the insert is a resilient member.

9. The heating assembly of claim 2, wherein the conductive coil is embedded in a wall of the receiving cavity, the conductive coil being adjacent to and spaced apart from the first housing.

10. The heating assembly of claim 1, wherein the electrically conductive coil is helically shaped;

and/or the thickness of the wall of the conductive coil is 1 mm-2 mm;

and/or the inner diameter of the conductive coil is 1 mm-4 mm;

and/or the conductive coil is a copper coil.

11. The heating assembly of claim 1, further comprising an insulating tube disposed at both ends of the conductive coil and in corresponding communication with the hollow portion of the conductive coil.

12. A heating assembly as claimed in any of claims 1 to 11, in which the first housing is a magnetically conductive housing, and the first housing heats up after the electrical coil is energised.

13. The heating assembly of any one of claims 1 to 11, further comprising a magnetically conductive insert disposed within the heating cavity, the first housing being a non-magnetically conductive housing, the magnetically conductive insert generating heat after the electrical coil is energized.

14. An electronic atomizer, comprising a power source, a controller and a heating assembly as recited in any one of claims 1 to 13, said power source being electrically connected to said controller, said controller being electrically connected to a conductive coil of said heating assembly, said controller being configured to control the flow of current to said conductive coil.