CN116782446A - Electromagnetic induction coil, electromagnetic induction device and cigarette heating appliance - Google Patents
Electromagnetic induction coil, electromagnetic induction device and cigarette heating appliance Download PDFInfo
- Publication number
- CN116782446A CN116782446A CN202310764333.0A CN202310764333A CN116782446A CN 116782446 A CN116782446 A CN 116782446A CN 202310764333 A CN202310764333 A CN 202310764333A CN 116782446 A CN116782446 A CN 116782446A
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- Prior art keywords
- electromagnetic induction
- conductor
- coil
- induction coil
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 73
- 238000010438 heat treatment Methods 0.000 title claims abstract description 73
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 37
- 239000004020 conductor Substances 0.000 claims abstract description 78
- 229910003460 diamond Inorganic materials 0.000 claims description 8
- 239000010432 diamond Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 8
- 230000002500 effect on skin Effects 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000012141 concentrate Substances 0.000 abstract description 2
- 241000208125 Nicotiana Species 0.000 description 10
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 10
- 239000000919 ceramic Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/365—Coil arrangements using supplementary conductive or ferromagnetic pieces
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/38—Coil arrangements specially adapted for fitting into hollow spaces of workpieces
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/44—Coil arrangements having more than one coil or coil segment
Abstract
The application discloses an electromagnetic induction coil, an electromagnetic induction device and a cigarette heating appliance. The inside cavity of wire of its coil body, because the existence of skin effect, the electric current of high frequency circuit can concentrate on the surface conduction of conductor, consequently the inside cavity of conductor can not influence the circulation of electric current to can also reduce the influence of skin effect to coil body resistance in the high frequency circuit under the same circumstances of cross-sectional area, reduce equivalent resistance, reduce the self-heating of coil body, improve energy conversion utilization, the coil body adopts hollow conductor simultaneously can also save material to a certain extent, lighten the utensil weight.
Description
Technical Field
The application relates to the technical field of heating non-combustible tobacco, in particular to an electromagnetic induction coil, an electromagnetic induction device and a cigarette heating appliance.
Background
The electromagnetic induction heating technology is started to be applied to the technical field of low-temperature cigarette heating due to higher heating efficiency. The electromagnetic induction heating system of the cigarette is characterized in that a conductor material is spirally wound on the outer side of a heating cavity to form an induction coil, alternating current is generated through an electronic control system, the alternating current passes through the coil, heat is generated in a conductor or a magnetic susceptor in the coil due to hysteresis loss and eddy effect, the susceptor can be arranged in or outside a cigarette, and the heat generated by the susceptor is utilized to bake and heat a fuming substance of the cigarette, so that aerosol for sucking is generated.
However, due to the skin effect of the high-frequency current, the current will concentrate on the surface of the coil conductor, and almost no current passes through the center part of the conductor, which is equivalent to the reduction of the cross section of the conductor and the increase of the resistance, therefore, in the electromagnetic induction heating appliance, the coil has certain resistance loss, thereby causing the self-heating of the coil and reducing the energy conversion efficiency, and simultaneously, the heat generated by the coil is conducted to the appliance shell, so that the shell temperature is increased and the holding experience is bad.
Therefore, how to reduce the resistance loss of the electromagnetic induction coil, reduce the resistance of the coil conductor, and improve the electromagnetic heating energy utilization rate is a problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the application provides an electromagnetic induction coil, an electromagnetic induction device and a cigarette heating appliance, which can reduce the resistance loss of the electromagnetic induction coil, reduce the resistance of an induction coil conductor and improve the utilization rate of electromagnetic heating energy.
The technical scheme provided by the application is as follows:
an electromagnetic induction coil includes a coil body formed of a conductor having a hollow portion provided inside.
Further, the cross section of the conductor is round, oval, triangular, square, diamond or polygonal above four sides.
Further, the cross section of the hollow part inside the conductor is round, oval, triangular, square, diamond or more than four sides polygonal.
Further, the shape of the cross section of the hollow portion inside the conductor is the same as the shape of the cross section of the conductor.
Further, an air inlet hole is formed in the conductor at one end of the coil body, an air outlet hole is formed in the conductor at the other end of the coil body, and the air inlet hole and the air outlet hole are respectively communicated with the hollow part inside the conductor.
An electromagnetic induction device comprises the electromagnetic induction coil and a circuit or a power supply for providing alternating current for the electromagnetic induction coil.
The cigarette heating appliance comprises the electromagnetic induction coil, a circuit or a power supply for providing alternating current for the electromagnetic induction coil, and a shell for accommodating the electromagnetic induction coil and the circuit or the power supply, wherein an accommodating cavity for accommodating a fuming substance is formed in the middle of the shell, and the electromagnetic induction coil generates an induction magnetic field in an electrified state so that at least part of a heating body positioned in the electromagnetic induction coil heats and is used for heating the fuming substance.
Further, the heating body is arranged in the accommodating cavity, the electromagnetic induction coil is wound in the shell, and the accommodating cavity is arranged in the electromagnetic induction coil.
Further, an air inlet is formed in a conductor of one end, close to the cigarette holder, of the coil body, an air outlet is formed in the conductor of one end, far away from the cigarette holder, of the coil body, the air inlet and the air outlet are respectively communicated with a hollow portion inside the conductor, an air inlet is formed in a position, corresponding to the air inlet, of the shell, the air inlet is communicated with the outside through the air inlet, and the air outlet is communicated with the bottom of the accommodating cavity.
Further, the heating body is in a columnar, tubular, rod-like, needle-like or rod-like shape coaxially arranged with the electromagnetic induction coil;
alternatively, the heating body is flat, sword-shaped, sheet-shaped or strip-shaped extending in the axial direction of the electromagnetic induction coil.
Further, a magnetic shielding layer is arranged outside the electromagnetic induction coil.
According to the electromagnetic induction coil, the electromagnetic induction device and the cigarette heating appliance, the inside of the wire of the coil body is hollow, and due to the skin effect, the current of the high-frequency circuit can be concentrated on the surface of the conductor to conduct, so that the hollow inside of the conductor can not influence the current circulation, the influence of the skin effect on the resistance of the coil body in the high-frequency circuit can be reduced under the condition that the cross sectional areas are the same, the equivalent resistance is reduced, the self-heating of the coil body is reduced, the energy conversion utilization rate is improved, meanwhile, the hollow conductor is adopted for the coil body, the material can be saved to a certain extent, and the weight of the appliance is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic view of a cigarette heating appliance in an embodiment of the present application;
fig. 2 is a sectional view of a receiving chamber of a cigarette heating appliance in accordance with an embodiment of the present application.
Reference numerals: coil body 1, well 2, casing 3, hold chamber 4, heating member 5, air inlet 6, power groove 7.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; the method comprises the steps of carrying out a first treatment on the surface of the When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the application to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the application, are included in the spirit and scope of the application which is otherwise, without departing from the spirit or scope thereof.
The embodiment of the application provides an electromagnetic induction coil, which comprises a coil body 1 formed by a conductor, wherein a hollow part 2 is arranged in the conductor.
According to the electromagnetic induction coil provided by the embodiment, the inside of the lead wire of the coil body 1 is hollow, the length of the hollow part 2 in the conductor is equal to that of the conductor, and due to the skin effect, the current of the high-frequency circuit can be concentrated on the surface of the conductor, so that the hollow part in the conductor can not influence the current circulation, and under the condition that the cross-sectional area of the conductor is the same, the influence of the skin effect on the resistance of the coil body 1 in the high-frequency circuit can be reduced, the equivalent resistance is reduced, the self-heating of the coil body 1 is reduced, the energy conversion utilization rate is improved, meanwhile, the hollow conductor adopted by the coil body 1 can save materials to a certain extent, and the weight of an appliance is reduced.
Preferably, the cross section of the conductor is circular, elliptical, triangular, square, diamond or polygonal above four sides. The cross-sectional shape of the conductor may be one of a circle, an ellipse, a triangle, a square, a diamond, or a regular polygon having four or more sides, and in the present application, the cross-sectional shape of the conductor refers to the outer peripheral shape of the cross-section of the conductor, and the middle of the cross-section of the conductor is hollow.
Specifically, the cross section of the hollow part 2 inside the conductor is circular, elliptical, triangular, square, diamond or more than four sides polygonal. The cross-section of the hollow portion 2 inside the conductor may be one of a circle, an ellipse, a triangle, a square, a diamond, or a regular polygon of four sides or more, and the square may be a square or a rectangle. More specifically, the cross-section of the conductor may be square in shape, and the cross-section of the hollow portion 2 inside thereof may be regular pentagon in shape; alternatively, the cross-section of the conductor is triangular, and the cross-section of the hollow portion 2 is circular.
The present example also provides an embodiment in which the shape of the cross section of the hollow portion 2 inside the conductor is the same as the shape of the cross section of the conductor. Specifically, the cross-sectional shape of the conductor is circular, and the cross-sectional shape of the hollow portion 2 inside the conductor is also circular; alternatively, the cross-sectional shape of the conductor is square, and the cross-sectional shape of the hollow portion 2 inside thereof is also square.
The embodiment further optimizes the technical scheme, an air inlet hole is formed in the conductor at one end of the coil body 1, an air outlet hole is formed in the conductor at the other end of the coil body 1, and the air inlet hole and the air outlet hole are respectively communicated with the hollow part 2 inside the conductor.
Specifically, at least one air inlet hole and at least one air outlet hole are arranged, a plurality of air inlet holes and a plurality of air outlet holes can be preferably arranged, external air can enter the hollow part 2 in the conductor from the air inlet hole at one end of the coil body 1, then the external air flows in the coil body 1 in a spiral manner, and finally flows out from the air outlet hole at the other end of the coil body 1. The outside air temperature is lower, when the air current flows through from the inside cavity 2 of the conductor of coil body 1, because there is certain fever in coil body 1, the heat of coil body 1 can preheat the gas that the inside flowed through to because coil body 1 is spiral winding, the circulation route of gas in coil body 1 is longer, the preheating length of air current increases, both is favorable to preheating the gas of inside, helps reducing the temperature of coil body 1 self again.
The embodiment also provides an electromagnetic induction device, which comprises the electromagnetic induction coil and a circuit or a power supply for providing alternating current for the electromagnetic induction coil. The electromagnetic induction device also has the beneficial effects of the electromagnetic induction coil, can reduce resistance loss, reduce equivalent resistance and reduce self-heating of the coil body 1, thereby effectively reducing energy loss and improving the electromagnetic heating energy utilization rate.
The embodiment also provides a cigarette heating appliance, as shown in fig. 1 and 2, which comprises the electromagnetic induction coil, a circuit or a power supply for providing alternating current for the electromagnetic induction coil, and a shell 3 for accommodating the electromagnetic induction coil and the circuit or the power supply, wherein an accommodating cavity 4 for accommodating a fuming substance is arranged in the middle of the shell 3, and the electromagnetic induction coil generates an induction magnetic field in an electrified state so as to heat a heating body 5 at least partially positioned in the electromagnetic induction coil and heat the fuming substance.
Specifically, the electromagnetic induction coil and the power supply or the circuit are arranged in the shell 3, when smoking tobacco or other fuming materials, the tobacco is placed in the accommodating cavity 4, the tobacco can be provided with the heating body 5, the heating appliance does not comprise the heating body 5, the tobacco provided with the heating body 5 is arranged in the electromagnetic induction coil, the electromagnetic induction coil generates an induction magnetic field in an electrified state, the heating body 5 heats under the action of the magnetic field of the electromagnetic induction coil, and the heating body 5 heats to heat the tobacco. Of course, the heating body 5 may be fixedly disposed in the housing 3, and the heating body 5 is at least partially disposed inside the electromagnetic induction coil, and after the smoke is placed in the accommodating cavity 4, the heating body 5 heats under the action of the magnetic field of the electromagnetic induction coil to heat the smoke inside the accommodating cavity 4.
Wherein, the heating body 5 can be made of electric conductivity or magnetic material, and the heating body 5 can generate heat under the action of the magnetic field of the electromagnetic induction coil. In particular, the heating body 5 may be entirely metallic; alternatively, a metal-containing heating structure composed of a metal together with an electrically insulating material, for example, is coated with a metal conductive material on the surface of a ceramic substrate. Preferably, the housing 3 is made of an insulating material, such as ceramic or a high-temperature-resistant insulating polymer material. The shell 3 is preferably made of ceramic, and has good insulation and heat-insulation effects.
In this embodiment, one end of the housing 3 far away from the accommodating cavity 4 is provided with a power supply slot 7 and a circuit board, a battery power supply is installed in the power supply slot 7, the anode and the cathode of the power supply slot 7 are respectively electrically connected with a control circuit on the circuit board, the control circuit is electrically connected with the electromagnetic induction coil, the battery is used for providing alternating current for the electromagnetic induction coil through the control circuit, and of course, the control circuit can also be directly electrically connected with an external power supply to provide alternating current for the electromagnetic induction coil. A control button can be arranged on the shell 3 and is connected with a control circuit for controlling the power supply to electrify or cut off the electromagnetic induction circuit.
In this embodiment, the above technical solution is optimized, the heating body 5 is disposed inside the accommodating cavity 4, the electromagnetic induction coil is wound in the housing 3, and the accommodating cavity 4 is disposed inside the electromagnetic induction coil. Specifically, the casing 3 includes inner shell and shell, and electromagnetic induction coil twines in the outside of inner shell, and is located between inner shell and the shell, and the middle part of inner shell is equipped with holds chamber 4, and heating member 5 coaxial setting is in the bottom that holds chamber 4. When the tobacco material is put into the accommodating cavity 4, the heating body 5 is inserted into the middle part of the tobacco material from the bottom, and the heating body 5 heats the tobacco material from the middle part.
In this embodiment, preferably, an air inlet hole is formed in a conductor of one end, close to the cigarette holder, of the coil body 1, an air outlet hole is formed in the conductor of one end, close to the cigarette holder, of the coil body 1, the air inlet hole and the air outlet hole are respectively communicated with the hollow part 2 inside the conductor, an air inlet 6 is formed in a position, corresponding to the air inlet hole, on the shell 3, the air inlet hole is communicated with the outside through the air inlet 6, and the air outlet hole is communicated with the bottom of the accommodating cavity 4.
The existing cigarette heating appliance is generally designed in such a way that cold air led in from the outside directly enters the heating cavity, so that when the air flow enters the heating cavity, the air flow temperature is low, the internal temperature of tobacco and the temperature of a heating element are suddenly reduced, the smoking taste is poor, the power of a control system is rapidly increased to perform temperature compensation, the temperature of the heating element is increased, and the energy consumption is increased.
The cigarette heating appliance provided by the embodiment is characterized in that one or more air inlet holes are formed in a conductor of one end, close to the cigarette holder, of the coil body 1, one or more air outlet holes are formed in a conductor of one end, far away from the cigarette holder, and the air inlet holes and the air outlet holes are communicated through a hollow part 2 in the conductor. When a smoker sucks from the cigarette holder, external air flows into the conductor from the air inlet 6 of the heating appliance shell, flows in a spiral way through the hollow part 2 in the conductor, finally flows out of the air outlet hole of the coil body 1, enters the bottom of the accommodating cavity 4 to reach the end part of the cigarette, enters the cigarette along with the suction of the smoker, and enters the cavity of the smoker together with aerosol generated by smoke substances, as shown by an arrow in fig. 1. Because the conductor of the coil body 1 generates heat to a certain extent, when the air flow circulates from the hollow part 2 of the conductor, the heat of the conductor can preheat the air flow flowing from the hollow part 2 in the conductor, and because the coil body 1 is spirally wound, the circulation path of the air flow in the hollow part 2 in the conductor is longer, the preheating length of the air flow is increased, when the air flow reaches the air outlet hole of the coil body 1 and reaches the end part of a cigarette, the temperature of the air flow is obviously increased compared with the ambient temperature, and at the moment, the influence on the temperature in the cigarette and the temperature of the heating body 5 is reduced without causing the instantaneous drop of the temperature, and the control system can maintain the stability of the whole temperature field in the cigarette only by keeping the output power stable, thereby being beneficial to keeping the consistency of the sucking taste and reducing the energy consumption.
In addition, due to certain resistance loss of the coil body 1, the coil body 1 generates heat, and heat generated by the coil body 1 is conducted to the shell of the heating appliance, so that the temperature of the shell is increased, and the holding experience of a sucker is poor. When the air flow with lower external temperature passes through the inside of the conductor, the temperature of the coil body 1 itself is reduced, so that the temperature of the housing 3 outside the coil is reduced.
Further, the heating body 5 is in a columnar, tubular, rod-like, needle-like or rod-like shape coaxially arranged with the electromagnetic induction coil; alternatively, the heating body 5 may have a flat, sword-like, sheet-like or strip-like shape extending in the axial direction of the electromagnetic induction coil.
In this embodiment, the heating body 5 adopts the above-mentioned shape structure, which is convenient for the heating body 5 to heat the cigarettes in the accommodating cavity 4 and is convenient for the heating body 5 to insert into the cigarettes. The preferred heated end is pointed.
In order to prevent electromagnetic leakage, the outside of the electromagnetic induction coil is provided with a magnetic shielding layer. The magnetic shielding layer is arranged, so that electromagnetic leakage can be effectively prevented.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. An electromagnetic induction coil is characterized by comprising a coil body formed by a conductor, wherein a hollow part is arranged in the conductor.
2. An electromagnetic coil according to claim 1, wherein the cross section of the conductor is circular, elliptical, triangular, square, diamond or more than four sided polygonal.
3. An electromagnetic coil according to claim 1 or 2, wherein the cross section of the hollow portion inside the conductor is circular, elliptical, triangular, square, diamond or a polygon of four or more sides.
4. An electromagnetic induction coil according to claim 1 or 2, characterized in that the shape of the cross section of the hollow inside the conductor is the same as the shape of the cross section of the conductor.
5. An electromagnetic induction coil according to claim 3, wherein an air inlet hole is provided in the conductor at one end of the coil body, an air outlet hole is provided in the conductor at the other end of the coil body, and the air inlet hole and the air outlet hole are respectively communicated with a hollow portion inside the conductor.
6. An electromagnetic induction device comprising an electromagnetic induction coil according to any one of claims 1-5 and a circuit or power supply for supplying an alternating current to the electromagnetic induction coil.
7. A cigarette heating appliance, which is characterized by comprising an electromagnetic induction coil according to any one of claims 1-5, a circuit or a power supply for providing alternating current for the electromagnetic induction coil, and a shell for accommodating the electromagnetic induction coil and the circuit or the power supply, wherein an accommodating cavity for accommodating a fuming substance is arranged in the middle of the shell, and the electromagnetic induction coil generates an induction magnetic field in an electrified state so that at least part of a heating body positioned in the electromagnetic induction coil heats and is used for heating the fuming substance.
8. The cigarette heating appliance of claim 7, wherein said heating body is disposed inside said receiving chamber, said electromagnetic coil is wound inside said housing, and said receiving chamber is disposed inside said electromagnetic coil.
9. The cigarette heating appliance according to claim 7 or 8, wherein an air inlet hole is formed in a conductor of one end of the coil body, which is close to the cigarette holder, an air outlet hole is formed in the conductor of one end of the coil body, which is far away from the cigarette holder, the air inlet hole and the air outlet hole are respectively communicated with a hollow part inside the conductor, an air inlet is formed in the shell at a position corresponding to the air inlet hole, the air inlet hole is communicated with the outside through the air inlet hole, and the air outlet hole is communicated with the bottom of the accommodating cavity.
10. A cigarette heating appliance according to claim 9, wherein the heating body is in a columnar, tubular, rod-like, needle-like or rod-like shape coaxially arranged with the electromagnetic induction coil;
alternatively, the heating body is flat, sword-shaped, sheet-shaped or strip-shaped extending in the axial direction of the electromagnetic induction coil.
11. A cigarette heating appliance as claimed in claim 7 or 8, wherein the electromagnetic coil is provided externally with a magnetic shield layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310764333.0A CN116782446A (en) | 2023-06-26 | 2023-06-26 | Electromagnetic induction coil, electromagnetic induction device and cigarette heating appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310764333.0A CN116782446A (en) | 2023-06-26 | 2023-06-26 | Electromagnetic induction coil, electromagnetic induction device and cigarette heating appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116782446A true CN116782446A (en) | 2023-09-19 |
Family
ID=88007754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310764333.0A Pending CN116782446A (en) | 2023-06-26 | 2023-06-26 | Electromagnetic induction coil, electromagnetic induction device and cigarette heating appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116782446A (en) |
-
2023
- 2023-06-26 CN CN202310764333.0A patent/CN116782446A/en active Pending
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