CN116998778A

CN116998778A - Microwave resonance heating device and electronic atomizing device

Info

Publication number: CN116998778A
Application number: CN202210474689.6A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Shenzhen Maishi Technology Co Ltd
Current assignee: Shenzhen Maishi Technology Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-11-07

Abstract

The application discloses a microwave resonance heating device and an electronic atomization device. The microwave resonance heating device includes: a housing having a microwave cavity formed therein; the microwave conductor comprises a first conductor part which is arranged in the microwave resonant cavity and is used for carrying out microwave resonance heating on an object to be heated in the microwave resonant cavity; the first conductor part is arranged in a plate body, the object to be heated is arranged between the first conductor part and the cavity wall of the microwave resonant cavity, and the cavity wall is arranged in parallel with the first conductor part. In this way, uniformity of microwave heating can be improved.

Description

Microwave resonance heating device and electronic atomizing device

Technical Field

The application relates to the technical field of electronic atomization, in particular to a microwave resonance heating device and an electronic atomization device.

Background

Currently, the mainstream electronic atomization devices sold in the market at home and abroad generally adopt electrothermal atomization. This approach is based on the principle of heat conduction, which takes time and there is a temperature gradient resulting in maldistribution of heat. In view of the drawbacks of the electrothermal atomization method, those skilled in the art have proposed an electronic atomization device using microwave resonance heating.

However, the microwave resonant cavity of the existing microwave resonant heating electronic atomization device is generally cylindrical, and the microwave field in the microwave resonant cavity is extremely unevenly distributed, so that the heating uniformity of the microwave resonant cavity is poor.

Disclosure of Invention

The application provides a microwave resonance heating device and an electronic atomization device, which are used for improving the uniformity of microwave heating.

In order to solve the technical problems, the application provides a microwave resonance heating device. The microwave resonance heating device includes: a housing having a microwave cavity formed therein; the microwave conductor comprises a first conductor part which is arranged in the microwave resonant cavity and is used for carrying out microwave resonance heating on an object to be heated in the microwave resonant cavity; the first conductor part is arranged in a plate body, the object to be heated is arranged between the first conductor part and the cavity wall of the microwave resonant cavity, and the cavity wall is arranged in parallel with the first conductor part.

The shell is provided with an outlet at the opening end of the shell and an inlet far away from the opening end and communicated with the microwave resonant cavity, the inlet and the outlet are arranged at intervals along the length direction of the first conductor part, and the end part of the object to be heated facing the inlet is positioned between the end part of the first conductor part facing the inlet and the outlet in the length direction.

Wherein, in the length direction, the ratio of the distance between the end of the object to be heated facing the inlet and the end of the first conductor part facing the inlet to the length of the first conductor part is 0.3 to 0.7.

Wherein the microwave conductor further comprises: and one end of the second conductor part is connected with one end of the first conductor part, and the other end of the second conductor part is connected with a microwave signal for impedance matching of the first conductor part.

The shell is provided with an outlet at the opening end of the shell and an inlet which is far away from the opening end and is communicated with the microwave resonant cavity, the inlet and the outlet are arranged at intervals along the length direction of the first conductor part, the inlet is arranged on the other cavity wall of the microwave resonant cavity, the outlet is arranged on the other cavity wall of the microwave resonant cavity, and the other cavity wall is arranged opposite to the cavity wall and is perpendicular to the other cavity wall.

Wherein the microwave resonance heating device further comprises: the microwave feed-in wire is embedded in the inlet, one end of the microwave feed-in wire is connected with the microwave signal source, and the other end of the microwave feed-in wire is connected with one end of the second conductor part.

The first conductor part and the second conductor part are integrally arranged and are all plate-shaped.

The interval distance between the first conductor part and the other cavity wall is larger than that between the first conductor part and the cavity wall, wherein the other cavity wall is arranged opposite to the cavity wall.

Wherein the microwave resonance heating device further comprises: the support piece is fixedly arranged in the microwave resonant cavity, and the support rod is fixedly connected with the microwave conductor and is used for fixedly connecting the microwave conductor with the shell.

In order to solve the above technical problems, the present application provides an electronic atomization device. The electronic atomization device comprises the microwave resonance heating device.

Unlike the prior art: the microwave resonance heating device comprises a shell and a microwave conductor, wherein a microwave resonance cavity is formed in the shell; the microwave conductor comprises a first conductor part which is arranged in the microwave resonant cavity and is used for carrying out microwave resonance heating on an object to be heated in the microwave resonant cavity. The first conductor part is arranged in a plate body, the object to be heated is arranged between the first conductor part and the side wall of the microwave resonant cavity, and the cavity wall is arranged in parallel with the first conductor part. The first conductor part is arranged in the shape of the plate body and is parallel to the cavity wall, so that a microwave field formed by the first conductor part between the cavity wall and the first conductor part is not converged or diverged, and the uniformity is higher.

Drawings

For a clearer description of the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic view of a microwave resonance heating apparatus according to an embodiment of the present application;

FIG. 2 is a schematic view of an exploded structure of a portion of the microwave resonant heating device of the embodiment of FIG. 1;

FIG. 3 is a schematic cross-sectional view of an embodiment of a microwave resonant heating device according to the present application;

FIG. 4 is a schematic view of a microwave resonant heating device according to an embodiment of the application;

FIG. 5 is a schematic view of an embodiment of an electronic atomizing device according to the present disclosure;

FIG. 6 is a diagram showing a simulation result of electric field distribution of the microwave resonance heating device with the coaxial microstrip structure;

FIG. 7 is a graph showing the simulation result of the heat distribution of the object to be heated by the microwave resonance heating apparatus according to the embodiment of the present application;

FIG. 8 is a diagram showing a simulation result of electric field distribution of a microwave resonance heating device with an enlarged upper space coaxial microstrip structure according to the present application;

fig. 9 is a diagram showing the result of simulating the heat distribution of an object to be heated by the microwave resonance heating apparatus according to the embodiment of the present application.

Detailed Description

The application is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present application, but do not limit the scope of the present application. Likewise, the following examples are only some, but not all, of the examples of the present application, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present application.

In describing embodiments of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present application will be understood in detail by those of ordinary skill in the art.

In embodiments of the application, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating 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 embodiments of the present application. In this specification, schematic representations of the above terms are not necessarily 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Those skilled in the art have proposed electronic atomizing devices for microwave resonance heating. The microwave energy penetrates through the interior of the object to be heated, the heating process is carried out in the whole object to be heated at the same time, the temperature rise is rapid, the output power of the microwave is adjustable at any time, the temperature is uniform, the temperature gradient is small, a high-temperature medium is not needed for heat transfer, most of the microwave energy is absorbed by the object to be heated and converted into heat required for temperature rise, the microwave energy utilizes the characteristic of high efficiency, and the time of heat conduction in conventional heating is greatly shortened. The energy used for microwave heating is electric energy, and has no pollution to the environment.

However, the microwave resonant cavity of the existing microwave resonant heating electronic atomization device is generally cylindrical, the resonant column in the microwave resonant cavity, namely the microwave conductor is cylindrical, the resonant column and the microwave resonant cavity are coaxially arranged, microwaves are fed in from one end and then resonate in the resonant cavity, and the microwave field in the microwave resonant cavity is unevenly distributed. In particular, the microwave field in the microwave resonant cavity changes along the radial direction of the resonant cavity, the intensity of the microwave field close to the resonant column area is larger, and the intensity of the microwave field far away from the resonant column area is smaller, so that the microwave field is extremely unevenly distributed along the radial direction of the resonant column, the heating degree of objects to be heated arranged in the microwave resonant cavity along the radial direction is obviously different, and the heating uniformity is extremely poor.

In order to solve the above-mentioned problems and improve the uniformity of microwave heating, the present application provides a microwave resonance heating device and an electronic atomization device, and the microwave resonance heating device and the electronic atomization device provided by the present application are described in detail below with reference to the embodiments.

The present application firstly proposes a microwave resonance heating device, as shown in fig. 1 and 2, fig. 1 is a schematic structural diagram of an embodiment of the microwave resonance heating device of the present application; fig. 2 is an exploded view of a part of the structure of the microwave resonance heating apparatus of the embodiment of fig. 1. The microwave resonance heating apparatus (not shown) of the present embodiment includes: a housing 11 and a microwave conductor 12; wherein a microwave cavity (not shown) is formed inside the housing 11; the microwave conductor 12 comprises a first conductor part 121, the first conductor part 121 is arranged in the microwave resonant cavity, and the first conductor part 121 is used for carrying out microwave resonance heating on an object 13 to be heated in the microwave resonant cavity; the first conductor 121 is disposed in a plate, and the object to be heated 13 is disposed between the first conductor 121 and a cavity wall of the microwave cavity, where the cavity wall is disposed parallel to the first conductor 121.

The cavity wall is the inner wall of the housing 11.

The first conductor 121 is connected to a microwave signal and resonates in the microwave resonant cavity to emit microwaves into the microwave resonant cavity, and the microwaves penetrate through the interior of the object to be heated 13 in the microwave resonant cavity to cause molecules and the like in the interior of the object to be heated 13 to vibrate, so that the temperature of the object to be heated 13 is raised, and most of the microwave energy is absorbed by the object to be heated 13 and converted into heat required for raising the temperature, so that the object to be heated 13 is heated.

The first conductor portions 121 for performing microwave resonance heating on the object 13 to be heated are all plate bodies, and the cavity walls are arranged in parallel with the first conductor portions 121, so that microwave fields distributed in the space between the cavity walls of the microwave resonance cavity and the first conductor portions 121 are uniform.

In particular, since the first conductor part 121 is provided in a plate body, and the cavity wall is parallel to the first conductor part 121, the microwave field emitted from the first conductor part 121 toward the cavity wall of the microwave cavity is uniform, and the microwave field is uniform in the space between the cavity wall of the microwave cavity and the first conductor part 121, there is no divergence or concentration, so that the microwave field is uniformly distributed along the lamination direction of the first conductor part 121 and the cavity wall of the microwave cavity and in a plane parallel to the first conductor part.

Unlike the prior art, the first conductor 121 of the present embodiment is disposed in a plate, and the object to be heated 13 is disposed between the first conductor 121 and the side wall of the microwave cavity, and the cavity wall is disposed parallel to the first conductor 121. Because the first conductor portion 121 is disposed in a plate body, and the first conductor portion 121 is parallel to the cavity wall, the microwave field formed by the first conductor portion 121 between the cavity wall and the first conductor portion 121 is not concentrated or diverged, and the uniformity is higher.

Alternatively, the microwave resonant cavity may be provided in a rectangular body.

The housing 11 is a microwave resonant cavity, and can define microwaves of a specific frequency in the microwave resonant cavity, and electric energy and magnetic energy are periodically exchanged to heat the object 13 to be heated in the microwave resonant cavity.

Wherein, the shell 11 has electromagnetic shielding performance to shield microwave signals in the microwave resonant cavity; the shell 11 has better heat insulation performance, reduces heat dissipation, and improves the microwave heating effect and efficiency; and the housing 11 should have a certain rigidity to protect the components within its microwave cavity.

For example, the housing 11 may be a metal housing having a certain rigidity, or a metal layer may be coated on a housing having a certain height, or the like.

The first conductor portion 121 of the present embodiment is disposed in parallel with the cavity wall of the microwave cavity. By this structure, the space between the first conductor portion 121 and the cavity wall of the microwave cavity can be made to be rectangular, not only the uniformity of the microwave field distributed in the whole space can be improved, but also the setting of the object to be heated 13 can be facilitated.

For example, in the present embodiment, the length direction of the first conductor portion 121 provided in the plate body is parallel to the length direction of the microwave cavity provided in the rectangular body, the width direction of the first conductor portion 121 is parallel to the width direction of the microwave cavity, and the height direction of the first conductor portion 121 is parallel to the height direction of the microwave cavity. By this structure, the volume of the microwave cavity can be reduced while ensuring the volume and heating effect of the object 13 to be heated, thereby reducing the volume of the microwave resonant heating device.

The cavity wall of the application refers to a top wall or a bottom wall extending along the length direction and the width direction of the microwave resonant cavity. Specifically, the cavity wall of the present embodiment is the bottom wall of the microwave cavity, and the object to be heated 13 is disposed between the first conductor portion 121 and the bottom wall of the microwave cavity.

As is clear from the above analysis, the microwave field of the present embodiment is uniformly distributed along the lamination direction (i.e., longitudinal direction) of the first conductor portion 121 and the cavity wall (i.e., bottom wall) of the microwave resonant cavity, so that the object 13 to be heated is uniformly heated along the longitudinal direction, and the microwave field is uniform in the plane parallel to the first conductor portion 121, so that the object 13 to be heated is uniformly heated in the plane parallel to the first conductor portion 121.

Optionally, the casing 11 of the present embodiment is provided with an outlet 112 located at an open end thereof and an inlet 111 far from the open end and communicating with the microwave cavity, and the inlet 111 and the outlet 112 are spaced apart along the length direction of the first conductor portion 12; wherein the inlet 111 is for feeding a microwave signal to the microwave conductor 12; the outlet 112 is used for outputting mist, aerosol and the like generated by heating the object 13 to be heated in the microwave resonant cavity. The open end is one end of the housing 11 in the longitudinal direction.

The first conductor portion 121 is provided as a plate body. The longitudinal direction of the housing 11 is substantially parallel to the longitudinal direction of the first conductor portion 121. The microwave signal mainly propagates along the length direction of the first conductor portion 121 to ensure the heating effect of the microwave signal on the object to be heated 13.

Wherein, to avoid leakage of the microwave signal from the outlet 112, the size of the outlet 112 should be defined at an integer multiple of a quarter wavelength of the microwave signal. The outlet 112 may be symmetrically arranged with the projection of the object 13 to be heated on the cavity wall (i.e. the side wall) where the outlet 112 is arranged as a center, so as to improve the uniformity of the output of mist or aerosol in the microwave cavity and improve the uniformity of atomization.

Optionally, the microwave conductor 12 of the present embodiment further includes a second conductor portion 122, one end of the second conductor portion 122 is connected to one end of the first conductor portion 121 near the inlet 111, and the other end of the second conductor portion 122 is connected to a microwave signal for impedance matching the first conductor portion 121.

In the present embodiment, the second conductor portion 122 for impedance matching is disposed between the inlet 111 and the first conductor portion 121, so that loss and interference of microwave signals can be reduced, and microwave heating efficiency can be improved.

Impedance matching means that no reflection occurs at the terminals of the system or at the connection of transmission lines of different characteristic impedance during the transmission of microwave signals. The present embodiment provides the second conductor portion 122 for not generating microwave reflection between the microwave signal source and the first conductor portion 121.

The present embodiment can achieve impedance matching of the first conductor part 121 by adjusting the size of the second conductor part 122 of the microwave conductor 12.

Alternatively, the second conductor portion 122 of the present embodiment is provided in a plate body. The length direction of the first conductor portion 121 is parallel to the length direction of the second conductor portion 122, the width direction of the first conductor portion 121 is parallel to the width direction of the second conductor portion 122, and the height direction of the first conductor portion 121 is parallel to the height direction of the second conductor portion 122, that is, the second conductor portion 122 is parallel to the first conductor portion 121.

The width direction, the length direction, and the lamination direction of the first conductor portion 121 and the cavity wall are perpendicular to each other.

Specifically, the second conductor portion 122 of the present embodiment is used to achieve impedance matching of the first conductor portion 121, and its specific shape and size are changed with the change of the size of the first conductor portion 121, so as to ensure the impedance matching effect.

Optionally, the inlet 111 is provided on another cavity wall, i.e. the top wall, of the microwave cavity and the outlet 112 is provided on a further cavity wall, i.e. the side wall, of the microwave cavity, wherein the further cavity wall is arranged opposite to the cavity wall and is arranged perpendicular to the further cavity wall.

The microwave resonance heating apparatus of the present embodiment further includes: the microwave feed-in line 124 is at least partially embedded in the inlet 111, one end of the microwave feed-in line 124 is connected with the microwave signal source, the other end of the microwave feed-in line 124 is connected with one end of the second conductor portion 122, and the microwave feed-in line 124 is perpendicular to the second conductor portion 122.

The microwave feed-in line 124 of the present embodiment extends from the inlet 111 to the outside of the housing 11, and an insulating layer 125 is further disposed on the periphery of a portion of the microwave feed-in line 124 located outside the housing 11. The insulating layer 125 may be a polytetrafluoroethylene insulating layer or the like. The insulating layer 125 and the microwave feed-in line 124 form a signal input terminal of the microwave resonance heating device.

The microwave feed-in line 124 includes a portion disposed inside the inlet of the housing 11 and a portion disposed outside the housing 11, and the insulating layer 125 is disposed outside the portion of the microwave feed-in line 124 disposed outside the housing 11.

Alternatively, the first conductor part 121 and the second conductor part 122 of the present embodiment may be integrally provided, and implemented by one microstrip line.

The first conductor portion 121 and the second conductor portion 122 of the present embodiment are both plate-shaped, i.e. the height thereof is smaller than the length and the length thereof.

Optionally, the distance between the first conductor portion 121 and the other cavity wall, i.e. the top wall, is larger than the distance between the first conductor portion 121 and the cavity wall, i.e. the bottom wall, wherein the other cavity wall is arranged opposite to the cavity wall. In this way, the microwave field intensity between the first conductor portion 121 and the bottom wall can be increased, and the microwave heating efficiency can be further improved.

The first conductor 121 of the present embodiment may be directly connected to the top wall of the cavity wall.

In other embodiments, the housing may also be a low dielectric constant ceramic housing or the like, with a metal layer applied thereto.

The projection of the first conductor portion 121 on the bottom wall of the present embodiment completely overlaps with the projection of the object to be heated on the bottom wall, so as to make full use of the microwave field of the first conductor portion 121.

Optionally, the microwave resonance heating apparatus of the present embodiment further includes: the support piece 14 is fixedly arranged in the microwave resonant cavity, and the support piece 14 is fixedly connected with the microwave conductor 12 and is used for fixedly connecting the microwave conductor 12 with the shell 11.

The support 14 not only can fix the object to be heated, but also can provide an air passage and increase heat dissipation.

Specifically, the support 14 is provided in a plate shape, and the support 14 is provided with grooves (through holes) for fixedly disposing the first conductor portion 121, the second conductor portion 122.

In another embodiment, as shown in fig. 3, the supporting member 34 is disposed between the microwave conductor 12 and another cavity wall, i.e. a top wall, of the microwave resonant cavity, and the supporting member 34 is fixedly disposed with the other cavity wall for fixedly connecting the microwave conductor 12 with the housing 11; wherein the other cavity wall is arranged opposite to the cavity wall, i.e. the bottom wall.

Wherein, the support member may be a dielectric plate with low dielectric constant to reduce loss to microwaves, such as a ceramic plate, etc.

The ceramic plate can be provided with a plurality of through holes so as to increase the contact area between the gas in the microwave resonant cavity and the object to be heated, thereby improving the atomization effect.

Other structures and working principles of this embodiment can be referred to the above embodiments, and are not repeated here.

The application further provides a microwave heating device according to another embodiment, as shown in fig. 4, and fig. 4 is a schematic structural diagram of an embodiment of the microwave heating device according to the application. The difference between this embodiment and the above implementation is that: in the longitudinal direction of the first conductor portion 121, the end of the object 41 to be heated toward the inlet is located between the end of the first conductor portion 121 toward the inlet and the outlet. That is, the dimension of the object 41 to be heated in the longitudinal direction of the first conductor portion 121 in the present embodiment is smaller than the length of the first conductor portion 121. Since the microwave signal propagates to the end portion of the first conductor portion 121 near the outlet along the length direction of the first conductor portion 121, the microwave field gradually increases from the inlet to the outlet along the length direction of the first conductor portion 121, and in order to further improve the microwave heating efficiency, the object 41 to be heated may be correspondingly disposed at a section of the first conductor portion 121 near the outlet.

Alternatively, the ratio of the distance between the end of the object to be heated 41 facing the inlet and the end of the first conductor facing the inlet to the length of the first conductor may be 0.3 to 0.7, such as 0.3, 0.4, 0.5, 0.6, 0.7, etc., in the length direction of the first conductor 121.

In other embodiments, in order to increase the uniformity of the object to be heated along the length direction of the first conductor portion, the object to be heated may be provided in a plurality of pieces to be heated having different microwave absorptances along the length direction, and the microwave absorptances of the plurality of pieces to be heated along the length direction gradually decrease.

In the embodiment of the application, the dimension of the first conductor part along the width direction is larger than or equal to the dimension of the object to be heated along the width direction, and the object to be heated only receives microwaves emitted from one side of the first conductor part, which is close to the bottom wall, so that the heating uniformity of the object to be heated can be further improved.

In the embodiment of the application, the width of the microwave conductor is smaller than the width of the microwave resonant cavity so as to provide an air passage.

The microwave resonance heating device of the embodiment of the application can also comprise an object to be heated.

The object to be heated in this embodiment may be tobacco or other materials that can be atomized by heating, such as traditional Chinese medicines.

The application further provides an electronic atomization device, as shown in fig. 5, and fig. 5 is a schematic structural diagram of an embodiment of the electronic atomization device. The electronic atomizing device of the present embodiment includes: a microwave resonance heating device 51, a main body 52, a battery 53, a controller (not shown), a microwave generator (not shown), and the like.

The structure and the working principle of the microwave resonance heating device 51 can be referred to the above embodiments, and are not repeated here.

Wherein the controller and microwave generator may be disposed on the circuit board 54. The microwave generator is connected to the controller and the microwave conductor in the microwave resonance heating device 51, respectively, and is used for generating a microwave signal with characteristic frequency under the control of the controller.

The battery 53 is connected to the controller and the microwave generator for supplying power to the controller and the microwave generator. The microwave resonance heating device 51, the battery 53, the controller, the microwave generator and the circuit board are arranged in the main body 52; the main body 52 is provided with an opening for inserting the object 13 to be heated.

The microwave generator can be realized by a magnetron or an oscillating circuit.

As shown in fig. 6 to 9, fig. 6 is a diagram showing a simulation result of electric field distribution of the microwave resonance heating device with the coaxial microstrip structure according to the present application; FIG. 7 is a graph showing the simulation result of the heat distribution of the object to be heated by the microwave resonance heating apparatus according to the embodiment of the present application; FIG. 8 is a diagram showing a simulation result of electric field distribution of a microwave resonance heating device with an enlarged upper space coaxial microstrip structure according to the present application; FIG. 9 is a graph showing the simulation result of the heat distribution of the object to be heated by the microwave resonance heating apparatus according to the embodiment of the present application; it can be seen that when the microwave heating device is used for heating the object to be heated, the heating energy and the heating temperature of the object to be heated along the interval direction between the first conductor part and the cavity wall and in the plane parallel to the first conductor part are relatively uniform.

The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.

Claims

1. A microwave resonance heating apparatus, comprising:

a housing having a microwave cavity formed therein;

the microwave conductor comprises a first conductor part which is arranged in the microwave resonant cavity and is used for carrying out microwave resonance heating on an object to be heated in the microwave resonant cavity;

the first conductor part is arranged in a plate body, the object to be heated is arranged between the first conductor part and the cavity wall of the microwave resonant cavity, and the cavity wall is arranged in parallel with the first conductor part.

2. A microwave resonance heating apparatus according to claim 1, wherein the housing is provided with an outlet at an open end thereof and an inlet which is remote from the open end and communicates with the microwave cavity, the inlet and the outlet being arranged at intervals along a longitudinal direction of the first conductor portion, and an end of the object to be heated facing the inlet is located between an end of the first conductor portion facing the inlet and the outlet in the longitudinal direction.

3. A microwave resonance heating apparatus according to claim 1, wherein a ratio of a distance between an end of the object to be heated toward the inlet and an end of the first conductor portion toward the inlet to a length of the first conductor portion in the length direction is 0.3 to 0.7.

4. The microwave resonant heating device of claim 1, wherein the microwave conductor further comprises:

and one end of the second conductor part is connected with one end of the first conductor part, and the other end of the second conductor part is connected with a microwave signal for impedance matching of the first conductor part.

5. The microwave resonance heating apparatus according to claim 4, wherein the housing is provided with an outlet at an open end thereof and an inlet which is far from the open end and communicates with the microwave resonance cavity, the inlet and the outlet are arranged at intervals along a length direction of the first conductor portion, the inlet is arranged on another cavity wall of the microwave resonance cavity, the outlet is arranged on another cavity wall of the microwave resonance cavity, and the other cavity wall is arranged opposite to the cavity wall and is arranged perpendicularly to the another cavity wall.

6. The microwave resonant heating device of claim 4, further comprising: and the microwave feed-in line is at least partially embedded in the inlet, one end of the microwave feed-in line is connected with a microwave signal source, and the other end of the microwave feed-in line is connected with one end of the second conductor part.

7. The microwave resonant heating device of claim 4, wherein the first conductor portion and the second conductor portion are integrally provided and each are provided in a plate shape.

8. A microwave resonant heating device in accordance with claim 1, wherein a separation distance between the first conductor portion and another cavity wall is greater than a separation distance between the first conductor portion and the cavity wall, wherein the other cavity wall is disposed opposite the cavity wall.

9. The microwave resonant heating device of any one of claims 1 to 8, further comprising:

the support piece is fixedly arranged in the microwave resonant cavity, is fixedly connected with the microwave conductor and is used for fixedly connecting the microwave conductor with the shell.

10. An electronic atomizing device comprising the microwave resonance heating device according to any one of claims 1 to 9.