An electromagnetic induction heated electronic cigarette cartridge
By setting an induction heating layer in the cigarette cartridge, the principle of electromagnetic induction is used to achieve uniform and efficient heating inside the cigarette body, which solves the problems of slow and uneven heating efficiency of traditional heating devices and avoids damage to the cigarette body.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 深圳毅芯半导体有限公司
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional heating devices are slow, produce uneven heating, and are prone to damaging the smoke.
It adopts electromagnetic induction heating, which uses an induction heating layer in the cartridge to uniformly heat the inside of the cigarette body by means of electromagnetic induction.
It achieves more uniform and efficient smoke heating, avoiding damage to the smoke body.
Smart Images
Figure CN224386779U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of electronic cigarette heating equipment, and in particular relates to an electronic cigarette cartridge that uses electromagnetic induction heating. Background Technology
[0002] With increasing health awareness and a deeper understanding of the dangers of smoking, e-cigarettes, as an alternative to traditional cigarettes, are gradually gaining popularity among consumers. Currently, there are various heating methods used in e-cigarettes on the market, such as resistance heating, etc. Figure 2 As shown, by inserting a heated cone into the tobacco, the cigarette paper is easily torn when the cone is inserted. Therefore, an aluminum foil is often added to the outside of the cigarette paper to prevent it from breaking when the heated cone is inserted. However, this method has slow heating efficiency, the heating is point-like and diffused, and it is easy to damage the tobacco. Utility Model Content
[0003] The purpose of this invention is to provide an electronic cigarette cartridge that uses electromagnetic induction heating to solve the technical problems of slow heating efficiency, uneven heating, and easy damage to the cigarette body caused by traditional heating devices.
[0004] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:
[0005] In some embodiments of this application, an electronic cigarette cartridge with electromagnetic induction heating is provided, comprising:
[0006] The box body has a heating cavity and an installation cavity inside;
[0007] A power supply component is located inside the mounting cavity and is detachably connected to the housing.
[0008] A transformer component is disposed within a mounting cavity and is electrically connected to a power supply component.
[0009] The heating component is located inside the heating chamber and is electrically connected to the transformer component. It has a heating zone at its center and an opening at the top of the box, which corresponds to the position of the heating zone. The heating zone heats the e-cigarette cartridge.
[0010] In some embodiments of this application, the heating component includes:
[0011] A support component is located inside the heating chamber and is fixedly connected to the box body.
[0012] A conductive component is coiled around a support component and is electrically connected to a transformer component.
[0013] In some embodiments of this application, the smoke cartridge includes:
[0014] Cigarette paper, wherein the cigarette paper has an internal cavity;
[0015] An induction heating layer is disposed on the inner wall of the receiving cavity and is fixedly connected to the cigarette paper.
[0016] The tobacco shreds are disposed within the receiving cavity.
[0017] In some embodiments of this application, the smoke cartridge includes:
[0018] Cigarette paper, wherein the cigarette paper has an internal cavity;
[0019] An induction heating layer is disposed within a receiving cavity, which is concentric with the cigarette paper, and has a cavity inside.
[0020] The tobacco shreds are disposed within the receiving cavity and the hollow cavity.
[0021] In some embodiments of this application, the induction heating layer is aluminum foil.
[0022] Compared with the prior art, the beneficial effects of this utility model are that by adding an induction heating layer in the smoke body, the induction heating layer inside the smoke body is heated from the inside out, resulting in more uniform heating. Moreover, the use of electromagnetic induction heating method results in higher heating efficiency and more convenient operation. Attached Figure Description
[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0024] Figure 1 A schematic diagram of the overall internal structure provided for an embodiment of this utility model;
[0025] Figure 2 This is a schematic diagram of a conventional heating device provided in an embodiment of the present utility model;
[0026] Figure 3 A schematic diagram of the heating component provided in an embodiment of this utility model. Detailed Implementation
[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0028] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.
[0029] See appendix Figure 1-3 As shown, according to the embodiments of this application, it includes:
[0030] Box 1 has an outer shell structure, and the interior of box 1 is provided with a heating cavity and a mounting cavity. Its shape and material are selected according to actual needs.
[0031] The power supply component 2 is a power source, which can be a storage battery, dry cell battery or other device that can provide power. The power supply component 2 is located in the mounting cavity and is detachably connected to the box body 1.
[0032] The transformer component 3 is a device that converts direct current into alternating current. Correspondingly, the voltage can be boosted by a transformer module. The transformer component 3 is located in the mounting cavity and is electrically connected to the power supply component 2.
[0033] Heating component 4 is located inside the heating chamber and is electrically connected to transformer component 3. It has a heating zone at its center and an opening at the top of the box body 1, which corresponds to the position of the heating zone. The heating zone heats the tobacco cartridge 5.
[0034] It should be noted that the heating component 4 includes:
[0035] The support component 401 is a hollow columnar structure. The support component 401 is located inside the heating cavity and is fixedly connected to the box body 1.
[0036] The conductive component 402 is a coil, which is coiled on the support component 401 and is electrically connected to the transformer component 3.
[0037] Power supply component 2 supplies power to the point component, so that the conductive component 402 and the supporting component 401 combine to form an electromagnetic heating structure.
[0038] It should be noted that the smoke cartridge 5 includes:
[0039] Cigarette paper 501, wherein the cigarette paper 501 has an internal cavity;
[0040] The induction heating layer 502 is aluminum foil paper. The induction heating layer 502 is disposed on the inner wall of the receiving cavity and is fixedly connected to the cigarette paper 501.
[0041] Tobacco shreds 503 are disposed within the receiving cavity. By placing the tobacco cartridge 5 inside the support member 401, the induction heating layer 502 on the outer wall of the cigarette paper 501 is heated by an electromagnetic field.
[0042] To further optimize the above technology, the smoke cartridge 5 includes:
[0043] Cigarette paper 501, wherein the cigarette paper 501 has an internal cavity;
[0044] The induction heating layer 502 is aluminum foil paper. The induction heating layer 502 is disposed in the receiving cavity and is concentric with the cigarette paper 501. It has a cavity inside.
[0045] The tobacco shreds 503 are disposed in the receiving cavity and the empty cavity.
[0046] By placing the tobacco cartridge 5 inside the support component 401, the induction heating layer 502 inside the cigarette paper 501 is heated by the electromagnetic field to heat the tobacco shreds 503 inside and outside. Compared with the above-mentioned heating method from the outside to the inside, the heating efficiency is further improved and the heating is more uniform.
[0047] Principle of electric current generating magnetic field
[0048] Ampere's circuital law:
[0049] When current passes through a coil, a ring-shaped magnetic field is formed around the coil, and the strength of the magnetic field is proportional to the magnitude of the current.
[0050] B=μ0nI
[0051] In the formula:
[0052] B: Magnetic field strength;
[0053] μ0: Vacuum permeability;
[0054] n: Number of coil turns per unit length;
[0055] I: Current
[0056] The above formula describes the law that a constant current produces a constant magnetic field. If the current changes, the following formula can be used to correct it:
[0057] B(t)=μ0nI(t)
[0058] B(t): Magnetic field strength as a function of time;
[0059] μ0: Vacuum permeability;
[0060] n: Number of coil turns per unit length;
[0061] I(t): Current that changes with time.
[0062] The above formula shows that when the current changes with time (such as alternating current or oscillating current), the magnetic field also changes synchronously. That is, a changing electric field (or current) will induce a changing magnetic field.
[0063] This patent utilizes an oscillating coil to generate a changing current, thereby stimulating a changing magnetic field around the coil (especially inside the coil).
[0064] Heating principle of e-cigarette cartridge 5
[0065] Faraday's law of electromagnetic induction
[0066] When the magnetic flux of a closed conductive circuit (i.e., the aluminum foil tube described below) changes, an induced electromotive force (EMF) is generated in the circuit. The magnitude of the EMF is proportional to the rate of change of magnetic flux, and its direction always opposes the change in magnetic flux that caused it. Its mathematical expression is:
[0067] ε=-N·dΦ / dt
[0068] in:
[0069] ε: Induced electromotive force.
[0070] N: Number of turns in the coil.
[0071] dΦ / dt: Rate of change of magnetic flux.
[0072] The negative sign indicates that the direction of the electromotive force (ε) always opposes the change in magnetic flux that causes it.
[0073] In the formula, Φ = BS, where B is the magnetic field strength and S is the cross-sectional area. In a non-uniform magnetic field, Φ is the vector integral of the magnetic field strength (B) over the cross-sectional area (S).
[0074] Ohm's Law
[0075] This is the law describing how electromotive force produces electric current, that is, the magnitude of the current is determined by the electromotive force and the resistance of the circuit:
[0076] I = ε / R
[0077] I: Current in the circuit
[0078] ε: Electromotive force
[0079] R: Resistor in the circuit
[0080] The two formulas above show that a conductive circuit will generate a changing current in a changing magnetic field.
[0081] Electric power formula
[0082] Electric current doing work (i.e., generating heat) as it flows through a conductor. The power of the work done by the current (the energy conversion per unit time) is:
[0083] P = I 2 R
[0084] P: Power
[0085] I: Current
[0086] R: Resistance
[0087] In this application, a changing magnetic field generated by an oscillating coil is used to generate an induced current (i.e., eddy current) in the aluminum foil tube (closed conductor) of the cigarette cartridge 5. Since there is resistance in the aluminum foil tube, heat is generated in the aluminum foil tube, which is the induction heating layer 502.
[0088] The high-frequency alternating current generator produces a high-frequency current, which generates a high-frequency alternating electromagnetic field around the coil. The high-frequency electromagnetic field passes through the closed surface formed by the aluminum foil tube, generating a high-frequency current (or eddy current) inside the aluminum foil tube. The eddy current causes the tube to heat up rapidly, heating the tobacco shreds 503 to produce smoke.
[0089] The aluminum foil tube in the cartridge 5 generates heat under the action of a high-frequency alternating magnetic field to heat the tobacco shreds 503, and is the main heating element of the cartridge 5.
[0090] in:
[0091] The cylinder diameter should be between φ2.5mm and 6.5mm, with around 4mm being optimal.
[0092] Cylinder height h 10mm-14mm,
[0093] The aluminum foil thickness t is the same as that of the inner lining aluminum foil of cigarette paper 501, usually below 0.025mm.
[0094] The cross-section of a closed aluminum foil tube can be circular, elliptical, polygonal, or other irregular shapes. The key point is that its cross-section is a closed surface.
[0095] The aluminum foil tube can also be made of other metals, the key point being that it is a thin metal sheet that can be rolled into a tube shape.
[0096] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0097] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0098] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0099] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0100] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not 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
1. An electronic cigarette cartridge heated by electromagnetic induction, characterized in that, include: The box body has a heating cavity and an installation cavity inside; A power supply component is located inside the mounting cavity and is detachably connected to the housing. A transformer component is disposed within a mounting cavity and is electrically connected to a power supply component. The heating component is located inside the heating chamber and is electrically connected to the transformer component. It has a heating zone at its center and an opening at the top of the box, which corresponds to the position of the heating zone. The heating zone heats the e-cigarette cartridge.
2. The electronic cigarette cartridge with electromagnetic induction heating according to claim 1, characterized in that, The heating component includes: A support component is located inside the heating chamber and is fixedly connected to the box body. A conductive component is coiled around a support component and is electrically connected to a transformer component.
3. The electronic cigarette cartridge with electromagnetic induction heating according to claim 1, characterized in that, The smoke cartridge includes: Cigarette paper, wherein the cigarette paper has an internal cavity; An induction heating layer is disposed on the inner wall of the receiving cavity and is fixedly connected to the cigarette paper. The tobacco shreds are disposed within the receiving cavity.
4. The electronic cigarette cartridge with electromagnetic induction heating according to claim 1, characterized in that, The smoke cartridge includes: Cigarette paper, wherein the cigarette paper has an internal cavity; An induction heating layer is disposed within a receiving cavity, which is concentric with the cigarette paper, and has a cavity inside. The tobacco shreds are disposed within the receiving cavity and the hollow cavity.
5. An electronic cigarette cartridge with electromagnetic induction heating according to claim 3 or 4, characterized in that, The induction heating layer is aluminum foil.