Small structure non-fully enclosed electromagnetic energy converter and electronic cigarette

Abstract

The present invention belongs to the field of electromagnetic energy conversion, and specifically relates to a non-fully enclosed electromagnetic energy converter of an electric small structure and an electronic cigarette having the electromagnetic energy converter, including an energy conversion cavity and an electromagnetic excitation device installed in the energy conversion cavity, wherein the energy conversion cavity is a non-fully enclosed metal structure, the electromagnetic excitation device is composed of a dielectric substrate and a metal surface, a metal wire is wound in the dielectric substrate, and a circuit of the electromagnetic excitation device is formed, the metal surface is an independent component, and is not connected to the metal components of the energy conversion cavity, and an extension line of one end of the metal wire of the electromagnetic excitation device is introduced from the inside of the energy conversion cavity to the outside through a via hole in the metal surface, and the energy conversion cavity is filled with a dielectric material. The present invention realizes an electromagnetic energy converter in a non-fully enclosed space of an electric small structure, and the electronic cigarette introduces electromagnetic energy into an electronic cigarette tube filled with tobacco material in the form of microwaves based on electromagnetic energy, and the microwave energy converts electromagnetic energy into heat energy by resonating with tobacco material molecules, and ignites the tobacco material to smoke.

Description

Technical Field

[0001] The present invention relates to the field of electromagnetic wave energy technology, and in particular to a non-fully enclosed electromagnetic energy converter with a small electrical structure and an electronic cigarette having the electromagnetic energy converter structure. Background Art

[0002] Traditional electronic cigarettes are based on the principle of heat conduction. First, electronic cigarettes convert electrical energy into heat energy, which is then transferred to the tobacco material through a conduction device, causing the tobacco material to heat up and burn. This type of electronic cigarette with heat conduction has a simple structure and is easy to use. However, due to the limited efficiency of heat conduction and uneven distribution of heat energy, the tobacco material is not fully burned, resulting in waste, making the cost of using electronic cigarettes high.

[0003] An effective method of electromagnetic energy conversion is to use the resonance of electromagnetic energy. The structure with the highest conversion efficiency is the metal waveguide resonant cavity, including rectangular waveguide resonant cavity and cylindrical waveguide resonant cavity. Taking the cylindrical waveguide resonant cavity as an example, TE111 is the main mode, and its resonant frequency is:

[0004]

[0005] Where: a is the radius of the bottom of the cylindrical waveguide resonant cavity, l is the length of the cylindrical waveguide resonant cavity, such as Figure 1 Therefore, when the radius a of the cylindrical waveguide resonant cavity is 3.9 mm, the length l is 21.3 mm, and the interior is filled with a material with a dielectric constant of 1.5, the resonant frequency of the TE111 mode is 19.27 GHz and the operating wavelength is 12.7 mm.

[0006] When electromagnetic energy is transmitted in the form of electromagnetic waves and the frequency is less than 19.27 GHz, that is, the working wavelength is greater than 12.7 mm, for the structure of the above-mentioned cylindrical waveguide resonant cavity, the TE111 mode is a cutoff mode, and the electromagnetic energy cannot enter the cavity. The electromagnetic energy cannot resonate with the material in the cavity and the electromagnetic energy conversion occurs. This means that when the structural size of the cavity is smaller than the working wavelength of the electromagnetic wave, that is, the electrically small structure, the electromagnetic wave cannot enter the cavity to achieve effective electromagnetic energy conversion. Summary of the invention

[0007] In view of the problems existing in the prior art, the present invention designs an electromagnetic energy converter with a small electrical structure and an electronic cigarette having the electromagnetic energy converter structure, thereby realizing an electromagnetic energy converter in a non-fully enclosed space of a small electrical structure. The electronic cigarette introduces electromagnetic energy into an electronic cigarette tube filled with tobacco materials in the form of microwaves. The microwave energy converts the electromagnetic energy into heat energy by resonating with the tobacco material molecules, thereby igniting the tobacco material to generate smoke.

[0008] To achieve the above object, the technical solution of the present invention is as follows:

[0009] As one aspect of the present invention, a non-fully enclosed electromagnetic energy converter with a small structure includes an energy conversion cavity and an electromagnetic excitation device installed in the energy conversion cavity, wherein the energy conversion cavity is a non-fully enclosed metal structure, the electromagnetic excitation device is composed of a dielectric substrate and a metal surface, a metal wire is wound inside the dielectric substrate to constitute a circuit of the electromagnetic excitation device, the metal surface is an independent component and is not connected to the metal components of the energy conversion cavity, an extension line of one end of the metal wire of the electromagnetic excitation device is introduced from the inside of the energy conversion cavity to the outside through a via hole in the metal surface, and the energy conversion cavity is filled with a dielectric material.

[0010] Furthermore, the energy conversion cavity is a cylindrical cavity, an elliptical cavity or a rectangular cavity made of metal material.

[0011] Furthermore, one bottom surface of the cylindrical cavity is a closed metal surface, and the other bottom surface is a non-closed metal surface, or both bottom surfaces are non-closed metal surfaces.

[0012] Furthermore, the dielectric substrate is located on a metal surface or on a mesh metal surface composed of metal and non-metal materials.

[0013] Furthermore, the dielectric substrate is a cylindrical structure or a conical structure, and the metal wire is embedded in the cylindrical structure or the conical structure in a spiral structure.

[0014] Furthermore, an extension line at one end of the metal wire is introduced from the inside of the energy conversion cavity to the outside through a via hole in the metal surface, and is an inner conductor of the feed line. The outer conductor of the feed line is connected to the metal surface, and the inner conductor of the feed line and the outer conductor of the feed line form a coaxial line, or a microstrip line, or a strip line, or a coplanar waveguide.

[0015] As another aspect of the present invention, an electronic cigarette includes a cigarette tube and a mouthpiece connected to the cigarette tube, wherein the cigarette tube is a non-fully enclosed structure and is provided with an electromagnetic excitation device inside, wherein the electromagnetic excitation device is composed of a columnar dielectric substrate and a metal surface, wherein the columnar dielectric substrate is located on the metal surface or on a mesh metal surface composed of metal and non-metallic materials, wherein a metal wire with a spiral structure is embedded in the columnar dielectric substrate, wherein an extended line segment of the metal wire is an inner conductor of a feeder, an outer conductor of a feeder connected to the inner conductor of the feeder passes through an opening of the cigarette tube, and the inner conductor of the feeder and the outer conductor of the feeder form a coaxial feeder; further comprising an electromagnetic energy generating device and a power supply device connected to the electromagnetic energy generating device, wherein the electromagnetic energy generating device is connected to the electromagnetic excitation device and is used to provide electromagnetic energy to the electromagnetic excitation device, and wherein the cigarette tube cavity is filled with tobacco material.

[0016] Furthermore, the cigarette tube is an open or semi-open cylindrical metal cavity at one end close to the cigarette holder.

[0017] Furthermore, the cigarette tube is composed of a cigarette tube cavity and a cavity channel. The cigarette tube cavity and the cavity channel can be a separate structure or an integrated structure. The end of the cigarette tube cavity connected to the cavity channel is an open or semi-open structure, or both ends of the cigarette tube cavity are open or semi-open structures, and the cavity channel is connected to the mouthpiece.

[0018] Furthermore, a metal grid is provided between the cavity channel and the cigarette holder to reduce leakage of electromagnetic energy.

[0019] Furthermore, the tobacco material is filled in a tobacco material package, and the tobacco material package and the cigarette holder form a cigarette cartridge with an integrated structure, or the tobacco material, the cavity channel and the smoke duct constitute a cigarette cartridge as a whole, or the electromagnetic excitation device, the tobacco material, the cavity channel and the smoke duct constitute a cigarette cartridge as a whole.

[0020] The present invention has the following beneficial effects:

[0021] The electromagnetic energy conversion includes a non-fully enclosed cavity, which is composed of a metal part and a non-metal part; the cavity can be filled with dielectric materials; an excitation device is placed inside the cavity to provide electromagnetic energy input and excitation. The device can effectively convert the electromagnetic energy excited by the excitation device into energy that can be absorbed by the filled dielectric material. The device has a simple structure, and its geometric size is smaller than the working frequency of the electromagnetic energy. It has the advantages of high conversion efficiency and small electromagnetic leakage.

[0022] Electronic cigarettes convert electrical energy into electromagnetic energy, which is introduced into the electronic cigarette tube filled with tobacco materials in the form of microwaves. The microwave energy resonates with the tobacco material molecules, converts the electromagnetic energy into heat energy, and ignites the tobacco material to produce smoke. This microwave resonance electronic cigarette has a simple structure, is easy to use, has high electromagnetic energy conversion efficiency, and evenly distributes energy, which can achieve full and efficient combustion of tobacco materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Among them:

[0024] Figure 1 It is a structural diagram of a cylindrical waveguide resonant cavity;

[0025] Figure 2 This is a structural diagram of a non-fully enclosed electromagnetic energy converter of the present invention;

[0026] Figure 3 This is a structural diagram of the excitation device of the non-fully enclosed electromagnetic energy converter of the present invention;

[0027] Figure 4 The port S parameter of the non-fully enclosed electromagnetic energy converter of the electric small structure of the present invention;

[0028] Figure 5 This is the energy distribution diagram of the non-fully enclosed electromagnetic energy converter of the electric small structure of the present invention;

[0029] Figure 6 This is a structural diagram of an embodiment of a non-fully enclosed electromagnetic energy converter with a small electric structure according to the present invention;

[0030] Figure 7 This is a functional diagram of the detachable electronic cigarette of the present invention;

[0031] Figure 8 This is a structural diagram of the detachable electronic cigarette of the present invention;

[0032] Fig. 9 This is a structural diagram of the separate electronic cigarette power supply device of the present invention;

[0033] Fig.10 This is a structural diagram of the separate electronic cigarette electromagnetic energy generating device of the present invention;

[0034] Fig.11 This is a structural diagram of the separate electronic cigarette electromagnetic excitation device and the cigarette tube of the present invention;

[0035] Fig.12 This is a functional diagram of the integrated electronic cigarette of the present invention;

[0036] Fig.13 This is a structural diagram of the integrated electronic cigarette of the present invention;

[0037] Fig.14 This is a structural diagram of the integrated electronic cigarette pipe of the present invention;

[0038] Fig.15 This is a structural diagram of the integrated electronic cigarette electromagnetic energy generating device of the present invention;

[0039] Fig.16 This is a structural diagram of the integrated electronic cigarette power supply device of the present invention;

[0040] Fig.17 This is a structural diagram of the integrated electronic cigarette mouthpiece of the present invention;

[0041] Fig.18 It is a schematic diagram of the structure of the integrated electronic cigarette mouthpiece and the cigarette material of the present invention;

[0042] In the figure: 1, energy conversion cavity, 101, metal surface, 102, non-metal surface, 103, mesh metal surface;

[0043] 2. Electromagnetic excitation device, 201. Columnar dielectric substrate, 202. Metal wire, 203. Feeder inner conductor, 204. Feeder outer conductor;

[0044] 3. smoke pipe, 301. smoke pipe cavity, 302. cavity channel, 303. metal grid, 304. smoke pipe cover, 305. smoke duct;

[0045] 4. Cigarette holder;

[0046] 5. Electromagnetic energy generating device, 501. Circuit substrate, 502. Frequency synthesizer, 503. Power amplifier, 504. Switch;

[0047] 6. Power supply device, 601. Battery cover, 602. USB interface, 603. Via hole;

[0048] 7. Tobacco materials. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] like Figure 1 The non-fully enclosed electromagnetic energy converter of the present invention comprises an energy conversion cavity 1 and an electromagnetic excitation device 2 installed in the energy conversion cavity 1. The energy conversion cavity 1 is a non-fully enclosed metal structure. The electromagnetic excitation device 2 is composed of a dielectric substrate and a metal surface 101. A metal wire 202 is wound in the dielectric substrate to form a circuit of the electromagnetic excitation device. The metal surface 101 is an independent component and is not connected to the metal components of the energy conversion cavity 1. The extension line of one end of the metal wire 202 is introduced from the inside of the energy conversion cavity 1 to the outside through the via hole of the metal surface 101. The energy conversion cavity 1 is filled with a dielectric material.

[0051] One structure of the energy conversion cavity 1 is a metal cylindrical cavity. The cylindrical surface of the cylindrical cavity structure is a cylindrical metal surface, one bottom surface of the cylindrical cavity structure is a metal surface 101, forming a closed structure, and the other bottom surface is a non-closed metal surface 101, forming a non-fully closed structure. Or both bottom surfaces are non-closed metal surfaces 101.

[0052] One structure of the dielectric substrate is a dielectric column, including a cylinder, a cone, or a pyramid. The metal wire is a spiral structure and is embedded in the dielectric column. Alternatively, the metal wire is spirally wound on the outer surface of the dielectric column, and the surface of the dielectric column is glazed to prevent metal oxidation. The columnar dielectric substrate 201 is located on the metal surface 101 or on the mesh metal surface 103 composed of metal and non-metal materials.

[0053] As an embodiment of the present invention, Figure 2 As shown, the cylindrical surface of the cylindrical cavity structure is made of metal, one bottom surface is open, forming a non-closed structure, and the other bottom is composed of a circular metal surface and an opening, forming a non-fully closed structure. The cylindrical cavity has an electromagnetic excitation device 2 built in, and the space outside the electromagnetic excitation device 2 is filled with dielectric material inside the cavity.

[0054] like Figure 3 As shown, a metal wire 202 with a spiral structure is embedded in a columnar dielectric substrate 201, and an extension line of one end of the metal wire 202 is a feed line inner conductor 203, which is introduced from the inside of the energy conversion cavity 1 to the outside through a via hole of the metal surface 101, and a feed line outer conductor 204 is connected to the metal surface 101, and the feed line inner conductor 203 and the feed line outer conductor 204 form a coaxial line, or a microstrip line, or a strip line, or a coplanar waveguide.

[0055] As a specific embodiment, the cylindrical surface of the cylindrical cavity is made of aluminum, with a length of 19.92 mm and a thickness of 0.5 mm. One bottom surface is open, and the other bottom metal surface is made of aluminum, with a radius of 2.16 mm and a thickness of 0.1 mm. The dielectric constant of the columnar dielectric substrate is 9.9, the loss tangent is 0.003, the radius is 1 mm, and the length is 17.00 mm. The metal wire is a spiral wire made of copper, the radius of the circular cross section is 0.1 mm, the number of turns is 7, and the pitch is 2.3 mm. The design of this size structure can effectively convert the electromagnetic energy excited by the excitation device into energy that can be absorbed by the filled dielectric material. The device structure is simple, the geometric size is smaller than the working frequency of the electromagnetic energy, the energy conversion efficiency is high, and the electromagnetic leakage is small.

[0056] As a specific embodiment, in the cylindrical cavity, the space outside the electromagnetic excitation device is filled with a material with a dielectric constant of 1.5 and a loss tangent of 0.07.

[0057] Electromagnetic energy with a center frequency of 2.45 GHz and a power of 0.5 W is input into the electromagnetic energy conversion cavity through the feeder port. The S11 parameter of the feeder port is shown in Figure 5. It can be seen that at the 2.45 GHz frequency point b, the S11 parameter is less than -35 dB, which has good port reflection characteristics.

[0058] The power characteristics of the conversion are as follows Figure 6 As shown, at the frequency of 2.45 GHz, when the input power c of the cavity port is 0.5 W, the power received by the cavity is 0.498 W, of which the loss of metal material is 0.023 W, the radiation loss of the cavity is 0.0000066 W, the power of dielectric loss is 0.45 W, and the conversion efficiency of electromagnetic energy is as high as 91.6%.

[0059] like Figure 4As shown, as an embodiment, the columnar dielectric substrate 201 can also be a conical structure, with a metal wire 202 of a spiral structure embedded therein, one bottom surface of the cylindrical cavity is the metal surface 101, forming a fully enclosed structure, and the other bottom surface is composed of the metal surface 101 and an opening, forming a non-fully enclosed structure, or a mesh metal surface 103 composed of metal and non-metallic materials and an opening, forming a non-fully enclosed structure, and the columnar dielectric substrate 201 is located on the mesh metal surface 103.

[0060] Electronic cigarettes are based on the principle of heat conversion of electromagnetic energy. First, electronic cigarettes convert electrical energy into electromagnetic energy, which is fed into the smoke tube filled with tobacco materials in the form of microwaves. The microwave energy resonates with the molecules of the tobacco materials and converts the electromagnetic energy into heat energy, causing the tobacco materials to heat up and generate smoke. The formed smoke is led out from the smoke tube channel. This type of microwave resonance electronic cigarette has a simple structure, is easy to use, and has a high conversion efficiency of electromagnetic energy. The electromagnetic energy is evenly distributed in the smoke tube, which can achieve full and efficient combustion of the tobacco materials.

[0061] The electronic cigarette comprises a cigarette tube 3 and a cigarette holder 4, wherein the cigarette tube 3 is an energy conversion cavity 1, an electromagnetic excitation device 2 is arranged in the cavity of the cigarette tube 3, and also comprises an electromagnetic energy generating device 5 and a power supply device 6 connected to the electromagnetic energy generating device 5, the electromagnetic energy generating device 5 is connected to the electromagnetic excitation device 2, and is used to provide electromagnetic energy to the electromagnetic excitation device 2, and the cigarette tube is filled with cigarette materials.

[0062] Among them, the smoke tube 3 is composed of a smoke tube cavity 301 and a cavity channel 302. The smoke tube cavity 301 and the cavity channel 302 are split structures or integrated structures. The end where the smoke tube cavity 301 is connected to the cavity channel 302 is an open or semi-open structure, or both ends of the smoke tube cavity 301 are open or semi-open structures, and the cavity channel 302 is connected to the mouthpiece 4 through the smoke duct. The smoke tube cavity 301 is a non-fully enclosed structure. The electromagnetic excitation device 2 is composed of a columnar dielectric substrate 201 and a metal surface. A metal wire 202 with a spiral structure is embedded in the columnar dielectric substrate 201. The extension line of one end of the metal wire 202 is the inner conductor 203 of the feed line, which is introduced from the inside of the smoke tube cavity 301 to the outside through a via hole in the metal surface. The inner conductor 203 of the feed line is connected to the outer conductor 204 of the feed line. The outer conductor 204 of the feed line is connected to the metal surface 101 or the mesh metal surface 103 at the bottom of the columnar dielectric substrate. The inner conductor 203 of the feed line and the outer conductor 204 of the feed line form a coaxial line, or a microstrip line, or a strip line, or a coplanar waveguide.

[0063] One end of the smoke tube cavity 301 connected to the smoke duct 305 is open or half open. A metal grid 303 may be provided in the smoke duct 305 to reduce the leakage of electromagnetic energy.

[0064] Figures 7 and 8The schematic diagram of the structure of a detachable electronic cigarette according to an embodiment of the present invention is shown, wherein the power supply device 6, the electromagnetic energy generating device 5, and the cigarette tube cavity 301 constitute the cigarette tube; the cavity channel 302 and the flue 305 constitute the cigarette holder 4, and the power supply device 6, the electromagnetic energy generating device 5, the cigarette tube cavity 301, the cavity channel 302 and the flue 305 can be tubular structures. The power supply device 6 and the electromagnetic energy generating device 5 are metal tubular structures that match the size of the cigarette tube 3 and are connected to one side end of the cigarette tube cavity 301. The power supply device 6 provides power to the electromagnetic energy generating device 5, and the electromagnetic energy generating device 5 outputs electromagnetic energy.

[0065] The cigarette tube 3 and the cigarette holder 4 are separate components. When in use, the cigarette holder 4 is inserted into the cigarette tube 3 .

[0066] Fig. 9 As shown, the power supply device 6 is a metal tubular structure, with a movable battery cover 601 at one end, on which a USB interface 602 is provided for battery charging, and a power output at the other end provides power to the electromagnetic energy generating device 5 through a via.

[0067] Fig.10 As shown, the electromagnetic energy generating device 5 is a metal tubular structure, including a frequency synthesizer 502 and a power amplifier 503, which are mounted on a circuit substrate 501 and cooperate with a switch 504. The electromagnetic energy generating device 5 is powered by a power supply device 6 through a via hole at one end, and the electromagnetic energy passes through a via hole at the other end to provide electromagnetic energy for the electromagnetic excitation device 2.

[0068] Fig.11 As shown, the cigarette tube cavity 301 is a metal tubular structure with a built-in electromagnetic excitation device 2, and the columnar cigarette material 7 can be inserted into the cigarette tube cavity 301 and then into the cigarette holder 4. Or the cigarette material 7 is placed in the cavity channel 302, and the cigarette material 7, the cavity channel 302 and the smoke channel 305 form a whole cigarette cartridge.

[0069] The electromagnetic excitation device 2 can be built into the cavity channel 302, or the electromagnetic excitation device 2, the tobacco material 7, the cavity channel 302 and the smoke channel 305 form a whole cigarette cartridge. The tobacco material 7 is contained in a tobacco material package or a tobacco material bag, and the tobacco material package and the cigarette holder 4 are an integral structure of the cigarette cartridge. When in use, the tobacco material package or the tobacco material bag is directly inserted into the cigarette tube cavity 301, and smoke is smoked through the cigarette holder 4. Material for reducing the smoke temperature can be placed between the cavity channel 302 or the smoke channel 305.

[0070] A metal grid 303 may be disposed in the cavity channel 302 to reduce electromagnetic radiation.

[0071] Fig.12 A schematic structural diagram of an integrated electronic cigarette according to another embodiment of the present invention is shown, wherein the cigarette tube cavity 301, the cavity channel 302 and the cigarette holder 4 constitute a tubular integrated structure of the electronic cigarette.

[0072] Fig.13 As shown, the power supply device 6 and the electromagnetic energy generating device 5 are metal rectangular cavity structures. The power supply device 6 and the electromagnetic energy generating device 5 are installed on the outer tube wall of the cavity channel 302, and can be an integral structure or a detachable structure with the outer wall of the cavity channel 302.

[0073] Fig.14 As shown, the smoke tube cavity 301 is a tubular metal cavity, the top surface of which may be installed with a smoke tube cover 304, or the smoke tube cover 304 may not be installed, and the bottom surface is an open or semi-open surface. The tubular metal cavity has a built-in electromagnetic excitation device 2, and the electromagnetic excitation signal is fed in by a feeder.

[0074] As an embodiment of the present invention, Fig.15 As shown, the electromagnetic energy generating device 5 is a metal rectangular cavity structure. The electromagnetic energy generating device 5 is composed of a frequency synthesizer 502 and a power amplifier 503. The frequency synthesizer 502 and the power amplifier 503 are connected. The frequency synthesizer 502 and the power amplifier 503 are installed on a circuit substrate 501. At the same time, in conjunction with the switch 504, the electromagnetic energy generated by the electromagnetic energy generating device 5 is fed into the electromagnetic excitation device 2 through a feeder through a via.

[0075] Fig.16 As shown, the power supply device 6 of the present invention can construct a single power supply architecture or a dual power supply architecture, and is equipped with a removable battery cover. The power supply device with a dual power supply architecture is equipped with two USB interfaces 602 for charging the battery.

[0076] Fig.17 As shown, the mouthpiece 4 is a metal tubular structure, and a metal grid 303 may be built in it to reduce the leakage of electromagnetic energy.

[0077] Fig.18 As shown, the tobacco material 7 is contained in a tobacco material package, and the tobacco material package and the cigarette holder 4 are an integrated structure of the cigarette cartridge. When in use, the tobacco material package or tobacco material bag is directly inserted into the cigarette tube cavity 301, and smoke is smoked through the cigarette holder 4.

[0078] The electronic cigarette of the present invention converts electrical energy into electromagnetic energy, and the electromagnetic energy is introduced into the electronic cigarette tube filled with tobacco material in the form of microwaves. The microwave energy resonates with the tobacco material molecules, converts the electromagnetic energy into heat energy, and ignites the tobacco material to produce smoke. This microwave resonance electronic cigarette has a simple structure, is easy to use, has high electromagnetic energy conversion efficiency, and has uniform energy distribution, which can achieve full and efficient combustion of the tobacco material.

[0079] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A non-fully enclosed electromagnetic energy converter with a small electrical structure, characterized in that: It includes an energy conversion cavity and an electromagnetic excitation device installed in the energy conversion cavity. The energy conversion cavity is a non-fully enclosed structure. The electromagnetic excitation device is composed of a dielectric substrate and a metal surface. A metal wire with a spiral structure is embedded in the dielectric substrate to form a circuit of the electromagnetic excitation device. The metal surface and the metal components of the energy conversion cavity are not connected to each other. The extension line of one end of the metal wire of the electromagnetic excitation device is introduced from the inside of the energy conversion cavity to the outside through the via hole of the metal surface. The energy conversion cavity is filled with dielectric material. The energy conversion cavity is a cylindrical cavity made of metal material, or an elliptical cavity or a rectangular cavity.

2. The electromagnetic energy converter according to claim 1, characterized in that: The dielectric substrate is located on a metal surface or on a mesh metal surface composed of metal and non-metal materials.

3. The electromagnetic energy converter according to claim 1 or 2, characterized in that: The dielectric substrate is a cylindrical structure or a conical structure, and the metal wire is embedded in the cylindrical structure or the conical structure in a spiral structure.

4. The electromagnetic energy converter according to claim 3, characterized in that: The extension line at one end of the metal wire is the inner conductor of the feed line, which is introduced from the inside of the energy conversion cavity to the outside through the via hole of the metal surface. The outer conductor of the feed line is connected to the metal surface. The inner conductor of the feed line and the outer conductor of the feed line form a coaxial line, or a microstrip line, or a strip line, or a coplanar waveguide.

5. An electronic cigarette, comprising a cigarette tube and a cigarette holder connected to the cigarette tube, characterized in that: The smoke tube is a non-fully enclosed structure with an electromagnetic excitation device inside. The electromagnetic excitation device is composed of a columnar dielectric substrate and a metal surface. The columnar dielectric substrate is located on the metal surface or on a mesh metal surface composed of metal and non-metallic materials. A metal wire with a spiral structure is embedded in the columnar dielectric substrate. The extended line segment of the metal wire is the inner conductor of the feeder. The outer conductor of the feeder connected to the inner conductor of the feeder passes through the opening of the smoke tube. The inner conductor of the feeder and the outer conductor of the feeder constitute a coaxial feeder. It also includes an electromagnetic energy generating device and a power supply device connected to the electromagnetic energy generating device. The electromagnetic energy generating device is connected to the electromagnetic excitation device to provide electromagnetic energy to the electromagnetic excitation device. The smoke tube cavity is filled with tobacco materials.

6. The electronic cigarette according to claim 5, characterized in that: The cigarette tube is an open or semi-open cylindrical metal cavity at one end close to the cigarette holder.

7. The electronic cigarette according to claim 6, characterized in that: The cigarette tube is composed of a cigarette tube cavity and a cavity channel. The cigarette tube cavity and the cavity channel can be a separate structure or an integrated structure. The end of the cigarette tube cavity connected to the cavity channel is an open or semi-open structure, or both ends of the cigarette tube cavity are open or semi-open structures, and the cavity channel is connected to the cigarette holder.

8. The electronic cigarette according to claim 7, characterized in that: A metal grid is provided between the cavity channel and the cigarette holder to reduce leakage of electromagnetic energy.

9. The electronic cigarette according to any one of claims 5 to 8, characterized in that: The tobacco material is filled in a tobacco material package, and the tobacco material package and the cigarette holder form a cigarette cartridge with an integrated structure, or the tobacco material, the cavity channel and the smoke duct form a cigarette cartridge as a whole, or the electromagnetic excitation device, the tobacco material, the cavity channel and the smoke duct form a cigarette cartridge as a whole.

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