WO2024164130A1 - Electromagnetic induction heating-based cartridge and electronic cigarette - Google Patents
Electromagnetic induction heating-based cartridge and electronic cigarette Download PDFInfo
- Publication number
- WO2024164130A1 WO2024164130A1 PCT/CN2023/074705 CN2023074705W WO2024164130A1 WO 2024164130 A1 WO2024164130 A1 WO 2024164130A1 CN 2023074705 W CN2023074705 W CN 2023074705W WO 2024164130 A1 WO2024164130 A1 WO 2024164130A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal sheet
- fin
- cigarette cartridge
- cigarette
- electromagnetic induction
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/20—Cigarettes specially adapted for simulated smoking devices
-
- 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
- A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
Definitions
- the present invention relates to the technical field of electronic cigarettes, and in particular to an electromagnetic induction heating cigarette cartridge and an electronic cigarette.
- Electromagnetic induction heating electronic cigarettes generate electromagnetic induction between the metal sensor sheet set in the cigarette cartridge and the powered cigarette rod, and then use the high-frequency heating principle to make the metal sensor sheet heat up and heat the tobacco in the cigarette cartridge to obtain a cigarette substitute that can be inhaled by consumers.
- the metal induction plates of traditional electromagnetic induction heating electronic cigarettes are mostly planar structures. According to the principle of electromagnetic induction, when this type of planar metal induction plate undergoes electromagnetic induction with the cigarette rod, the eddy currents generated inside the metal induction plate are induced at various points along its width and thickness, and the eddy current intensity at each point is proportional to the material conductivity, power frequency, and the distance between the induction point and the physical center point of the threaded tube.
- the eddy currents generated at the non-physical center point of the threaded tube on the metal induction plate deviate from the eddy currents generated at the physical center point of the threaded tube on the metal induction plate, resulting in inconsistent heating temperatures at various parts of the metal induction plate, and thus uneven heating of the tobacco. It is easy to cause insufficient release of effective substances due to insufficient tobacco temperature, and burnt substances due to overheating of tobacco, which endangers consumer health. The heating effect of tobacco is insufficient, reducing the consumer's user experience.
- the electromagnetic induction heating cartridge reduces the eddy current differences caused by the offset of the origin of various parts of the metal induction sheet by setting a V-shaped metal induction sheet, thereby improving the heating effect of the metal induction sheet.
- An electromagnetic induction heating cigarette cartridge comprises a cigarette cartridge body and an induction metal sheet inserted into the cigarette cartridge body and extending along the length direction of the cigarette cartridge body, wherein the cross section of the induction metal sheet is a V-shaped structure.
- the sensing metal sheet is made of nickel alloy stainless steel material.
- the induction metal sheet includes a first fin and a second fin which are arranged at an angle, and the angle between the first fin and the second fin is between 90° and 150°.
- the thickness of the first fin is between 0.05-0.12 mm; the thickness of the second fin is between 0.05-0.12 mm.
- the width of the first fin is between 1.6-2.5 mm; the width of the second fin is between 1.6-2.5 mm.
- the width of the first fin is the same as the width of the second fin.
- the length of the sensing metal sheet is between 12-17 mm.
- the geometric center point of the sensing metal sheet coincides with the geometric center point of the cigarette cartridge body.
- the present invention also discloses an electronic cigarette, which comprises the electromagnetic induction heating cigarette cartridge.
- the electronic cigarette also includes a cigarette rod for inserting the cigarette cartridge body, a coil wound around the cigarette rod, a power supply for providing current to the coil, and a mouthpiece connected to the cigarette cartridge body.
- the cigarette cartridge body is provided with a accommodating cavity for accommodating tobacco and performing heat exchange with the metal sensor sheet.
- the induction metal sheet in the cigarette cartridge body is designed to extend along the length direction of the cigarette cartridge body and have a V-shaped cross-section.
- the difference between the eddy currents generated at different positions on the cross-section of the induction metal sheet with a V-shaped structure and the eddy currents generated at the physical center of the cigarette cartridge fluctuates less, so that when the induction metal sheet is heated, the temperature difference at each position on its cross-section is reduced, and the heating temperature of the tobacco by the induction metal sheet is more uniform, thereby improving the heating effect on the tobacco and the consumer's experience.
- Figure 1 is a schematic diagram of circular current magnetic flux lines
- FIG2 is a MATLAB image of the circular current magnetic flux lines generated by a single-turn coil
- Figure 3 is a MATLAB image of the circular current magnetic flux lines generated by the 5-turn coil
- FIG4 is a schematic diagram of the difference triangle of the eddy current when the planar induction metal sheet deviates from the origin;
- FIG5 is a schematic cross-sectional view of an electromagnetic induction heating cartridge according to an embodiment of the present invention.
- FIG6 is a schematic structural diagram of a sensing metal sheet from one viewing angle in one embodiment of the present invention.
- FIG7 is a schematic structural diagram of a sensing metal sheet from another perspective in one embodiment of the present invention.
- FIG. 8 is a schematic diagram of a difference triangle when the sensing metal sheet deviates from the origin in one embodiment of the present invention.
- Electromagnetic induction heating electronic cigarettes are a substitute for tobacco that heats tobacco by making the induction metal sheet heat up through the electromagnetic induction thermal effect between the energized solenoid and the induction metal sheet.
- the energized solenoid is a common component, which can generate a magnetic field whose strength can be artificially controlled by changing the current in the coil.
- the magnetic vector potential has a component only in the ⁇ direction, that is, the expression of the magnetic vector potential can be written as:
- FIG3 shows a MATLAB image of the circular current magnetic flux lines generated by a 5-turn coil.
- the magnetic induction material placed in the magnetic field along the z-axis direction will generate eddy currents in the material due to the change in magnetic vector potential caused by the change in current I.
- the size of the eddy current is based on the theorem:
- ⁇ is the conductivity of the magnetic induction material
- f is the power frequency
- d is the thickness of the magnetic induction material sheet
- Bm is the amplitude of the magnetic induction intensity.
- Bm is proportional to the magnetic vector potential.
- the present invention provides an electromagnetic induction heating cigarette cartridge 10, which reduces the eddy current differences caused by the offset of the origin of various parts of the metal induction sheet by setting a V-shaped structure metal induction sheet, thereby improving the heating effect of the metal induction sheet.
- the electromagnetic induction heating cigarette cartridge 10 includes a cigarette cartridge body 200 and an induction metal sheet 300 inserted into the cigarette cartridge body 200 and extending along the length direction of the cigarette cartridge body 200.
- the cross-section of the induction metal sheet 300 is a V-shaped structure.
- the induction metal sheet 300 can be a rectangular induction metal sheet folded along its midline, that is, folded along the x-axis and y-axis directions to obtain a V-shaped cross-section (i.e., cross-section) in the z-axis direction.
- the induction metal sheet 300 can also be obtained by mold forming.
- the geometric center point of the sensing metal sheet 300 coincides with the geometric center point of the cigarette cartridge body 200, that is, the center of the triangle formed by connecting the two ends of the sensing metal sheet 300 coincides with the geometric center of the cigarette cartridge body 200 (that is, the origin mentioned above), and the sensing metal sheet 300 still extends along the z-axis, that is, the length direction of the cigarette cartridge body 200.
- the sensing metal sheet is designed as a V-shaped structure, the eddy current difference generated by the deviation from the origin at various locations on the sensing metal sheet can be significantly reduced.
- the sensing metal sheet is heated, the temperature difference at various locations on the sensing metal sheet is reduced.
- the induction metal sheet 300 is made of nickel alloy stainless steel, which has high resistivity, low resistivity temperature coefficient, good corrosion resistance and oxidation resistance, and can be used for a long time at a temperature of 1000-1100° C.
- the induction metal sheet 300 is made of nickel alloy stainless steel, which ensures that the induction metal sheet 300 can quickly perform electromagnetic high-frequency induction heating when electromagnetic induction is generated with the cigarette rod 100.
- the induction metal sheet 300 includes a first fin 310 and a second fin 320 set at an angle, and the angle ⁇ between the first fin 310 and the second fin 320 is between 90-150°.
- the thickness d1 of the first fin 310 is between 0.05-0.12 mm; the thickness d2 of the second fin 320 is between 0.05-0.12 mm.
- the width r1 of the first fin 310 is between 1.6-2.5 mm; the width r2 of the second fin 320 is between 1.6-2.5 mm.
- the length l of the induction metal sheet 300 is between 12-17 mm.
- the angle ⁇ between the first fin 310 and the second fin 320 is designed to be between 90-150°, which is convenient for processing and can reduce the eddy current difference caused by the deviation of the original rectangular magnetic induction material sheet from the origin by 30-50% (according to the calculation formula of the aforementioned ⁇ S).
- the eddy current difference caused by the deviation of different positions on the induction metal sheet 300 from the origin is significantly improved, so that the heating temperature of each location on the induction metal sheet 300 tends to be consistent, thereby achieving uniform heating of the tobacco by the induction metal sheet 300 and improving the heating effect of the tobacco.
- the width of the first fin 310 is the same as the width of the second fin 320, that is, the area enclosed by the first fin 310 and the second fin 320 is an isosceles triangle.
- the difficulty of finding the geometric center point of the sensing metal sheet 300 so that it coincides with the origin is reduced, and on the other hand, the problem of an increase in the area of the difference triangle (increase in r) caused by the asymmetry of the two sides of the sensing metal sheet 300, which in turn increases the eddy current difference, can be reduced, so as to minimize the eddy current difference at various locations on the sensing metal sheet 300.
- an angle range of the induction metal sheet 300 is set.
- the required heating temperatures are not the same.
- the purpose of adjusting the heating temperature of the tobacco can be achieved by adjusting the current applied to the coil on the cigarette rod 100 and selecting the induction metal sheet 300 with a suitable angle to be placed inside the cigarette cartridge body 200. This ensures that different types of tobacco are heated at a specific temperature, thereby ensuring uniform heating of the tobacco and releasing as much effective substance in the tobacco as possible.
- the present invention also discloses an electronic cigarette, which includes the above-mentioned electromagnetic induction heating cigarette cartridge 10. Furthermore, the electronic cigarette also includes a cigarette rod 100 for inserting a cigarette cartridge body 200, a coil wound around the cigarette rod 100, a power supply for providing current to the coil, and a mouthpiece connected to the cigarette cartridge body 200.
- the cigarette cartridge body 200 is provided with a receiving cavity for accommodating tobacco and exchanging heat with the metal induction sheet.
- the electronic cigarette of this embodiment is provided with a V-shaped induction metal sheet 300 in its cigarette cartridge body 200. The eddy current difference generated by the induction metal sheet 300 deviating from the origin is greatly reduced, which significantly improves the heating effect of the induction metal sheet 300 on tobacco.
- the induction metal sheet 300 in the cigarette cartridge body 200 is designed to extend along the length direction of the cigarette cartridge body 200 and have a V-shaped cross-section.
- the eddy currents generated at different positions on the cross-section of the induction metal sheet 300 with a V-shaped structure have a smaller fluctuation in the difference between the eddy currents generated at the physical center of the cigarette cartridge body 200, so that when the induction metal sheet 300 is heated, the temperature difference at each position on its cross-section is reduced, and the heating temperature of the tobacco by the induction metal sheet 300 is more uniform, thereby improving the heating effect on the tobacco and the consumer's experience.
Landscapes
- General Induction Heating (AREA)
Abstract
Description
本发明涉及电子烟技术领域，特别是涉及一种电磁感应加热烟弹及电子烟。The present invention relates to the technical field of electronic cigarettes, and in particular to an electromagnetic induction heating cigarette cartridge and an electronic cigarette.
电磁感应加热电子烟是通过设置在烟弹内的金属感应片与通电的烟杆之间产生电磁感应，继而利用高频加热原理，使得金属感应片发热，并对烟弹内的烟草进行加热，以获得可供消费者吸食的烟雾的烟支替代品。Electromagnetic induction heating electronic cigarettes generate electromagnetic induction between the metal sensor sheet set in the cigarette cartridge and the powered cigarette rod, and then use the high-frequency heating principle to make the metal sensor sheet heat up and heat the tobacco in the cigarette cartridge to obtain a cigarette substitute that can be inhaled by consumers.
传统的电磁感应加热电子烟的金属感应片多为平面式结构，根据电磁感应原理，这类平面式金属感应片在与烟杆发生电磁感应时，金属感应片内部产生的涡流由沿其宽度和厚度的各个点感应产生，且各个点的涡流强度与材料电导率、电源频率以及感应点与螺纹管物理中心点的距离成正比，这样一来，金属感应片上处于螺纹管非物理中心点位置处产生的涡流与金属感应片上处于螺纹管物理中心点位置处产生的涡流产生偏差，使得金属感应片上各部位加热温度不一致，进而使得烟草受热不均，易出现因烟草温度不足造成的有效物质释放不足，以及因烟草过热产生焦糊物质危害消费者健康，烟草的加热效果不足，降低了消费者的使用体验。The metal induction plates of traditional electromagnetic induction heating electronic cigarettes are mostly planar structures. According to the principle of electromagnetic induction, when this type of planar metal induction plate undergoes electromagnetic induction with the cigarette rod, the eddy currents generated inside the metal induction plate are induced at various points along its width and thickness, and the eddy current intensity at each point is proportional to the material conductivity, power frequency, and the distance between the induction point and the physical center point of the threaded tube. In this way, the eddy currents generated at the non-physical center point of the threaded tube on the metal induction plate deviate from the eddy currents generated at the physical center point of the threaded tube on the metal induction plate, resulting in inconsistent heating temperatures at various parts of the metal induction plate, and thus uneven heating of the tobacco. It is easy to cause insufficient release of effective substances due to insufficient tobacco temperature, and burnt substances due to overheating of tobacco, which endangers consumer health. The heating effect of tobacco is insufficient, reducing the consumer's user experience.
发明内容Summary of the invention
基于此，有必要针对上述不足，提供一种电磁感应加热烟弹及电子烟，该电磁感应加热烟弹通过设置V型结构金属感应片以减少因金属感应片各部位偏移原点产生的涡流差异，提高了金属感应片的加热效果。Based on this, it is necessary to provide an electromagnetic induction heating cartridge and an electronic cigarette to address the above-mentioned shortcomings. The electromagnetic induction heating cartridge reduces the eddy current differences caused by the offset of the origin of various parts of the metal induction sheet by setting a V-shaped metal induction sheet, thereby improving the heating effect of the metal induction sheet.
一种电磁感应加热烟弹，包括烟弹本体以及插入烟弹本体内并沿烟弹本体的长度方向延伸的感应金属片，所述感应金属片的横截面呈V型结构。An electromagnetic induction heating cigarette cartridge comprises a cigarette cartridge body and an induction metal sheet inserted into the cigarette cartridge body and extending along the length direction of the cigarette cartridge body, wherein the cross section of the induction metal sheet is a V-shaped structure.
在其中一个实施例中，所述感应金属片采用镍合金不锈钢材料制成。In one embodiment, the sensing metal sheet is made of nickel alloy stainless steel material.
在其中一个实施例中，所述感应金属片包括夹角设置的第一翅片和第二翅片，第一翅片与第二翅片的夹角介于90-150°之间。 In one embodiment, the induction metal sheet includes a first fin and a second fin which are arranged at an angle, and the angle between the first fin and the second fin is between 90° and 150°.
在其中一个实施例中，所述第一翅片的厚度介于0.05-0.12mm之间；所述第二翅片的厚度介于0.05-0.12mm之间。In one embodiment, the thickness of the first fin is between 0.05-0.12 mm; the thickness of the second fin is between 0.05-0.12 mm.
在其中一个实施例中，所述第一翅片的宽度介于1.6-2.5mm之间；所述第二翅片的宽度介于1.6-2.5mm之间。In one embodiment, the width of the first fin is between 1.6-2.5 mm; the width of the second fin is between 1.6-2.5 mm.
在其中一个实施例中，第一翅片的宽度与第二翅片的宽度相同。In one embodiment, the width of the first fin is the same as the width of the second fin.
在其中一个实施例中，所述感应金属片的长度介于12-17mm之间。In one embodiment, the length of the sensing metal sheet is between 12-17 mm.
在其中一个实施例中，所述感应金属片的几何中心点与烟弹本体的几何中心点重合。In one embodiment, the geometric center point of the sensing metal sheet coincides with the geometric center point of the cigarette cartridge body.
本发明还公开了一种电子烟，该电子烟包括上述电磁感应加热烟弹。The present invention also discloses an electronic cigarette, which comprises the electromagnetic induction heating cigarette cartridge.
在其中一个实施例中，电子烟还包括用于插装所述烟弹本体的烟杆、绕设于烟杆的线圈、用于为所述线圈提供电流的电源以及与烟弹本体连通的烟嘴，所述烟弹本体内设有用于容纳烟草并与金属感应片进行热交换的容纳腔。In one embodiment, the electronic cigarette also includes a cigarette rod for inserting the cigarette cartridge body, a coil wound around the cigarette rod, a power supply for providing current to the coil, and a mouthpiece connected to the cigarette cartridge body. The cigarette cartridge body is provided with a accommodating cavity for accommodating tobacco and performing heat exchange with the metal sensor sheet.
实施本发明的电磁感应加热烟弹及电子烟，将烟弹本体内的感应金属片设计为沿烟弹本体的长度方向延伸且横截面呈V型的结构，相较于平面式结构的感应金属片，V型结构的感应金属片的横截面上不同位置点产生的涡流相对于烟弹物理中心处产生的涡流的差值的波动较小，使得感应金属片在发热时，其横截面上各位置点的温度差值减小，感应金属片对烟草的加热温度更加均匀，从而提升了对烟草的加热效果以及消费者的使用体验。In the electromagnetic induction heating cigarette cartridge and electronic cigarette of the present invention, the induction metal sheet in the cigarette cartridge body is designed to extend along the length direction of the cigarette cartridge body and have a V-shaped cross-section. Compared with the induction metal sheet with a planar structure, the difference between the eddy currents generated at different positions on the cross-section of the induction metal sheet with a V-shaped structure and the eddy currents generated at the physical center of the cigarette cartridge fluctuates less, so that when the induction metal sheet is heated, the temperature difference at each position on its cross-section is reduced, and the heating temperature of the tobacco by the induction metal sheet is more uniform, thereby improving the heating effect on the tobacco and the consumer's experience.
图1为圆环形电流磁感线示意图；Figure 1 is a schematic diagram of circular current magnetic flux lines;
图2为单匝线圈产生的圆环形电流磁感线的MATLAB图像；FIG2 is a MATLAB image of the circular current magnetic flux lines generated by a single-turn coil;
图3为5匝线圈产生的圆环形电流磁感线的MATLAB图像；Figure 3 is a MATLAB image of the circular current magnetic flux lines generated by the 5-turn coil;
图4为平面式感应金属片偏离原点时涡流的差值三角形示意图；FIG4 is a schematic diagram of the difference triangle of the eddy current when the planar induction metal sheet deviates from the origin;
图5为本发明的一个实施例中电磁感应加热烟弹的剖面结构示意图；FIG5 is a schematic cross-sectional view of an electromagnetic induction heating cartridge according to an embodiment of the present invention;
图6为本发明的一个实施例中感应金属片一视角的结构示意图；FIG6 is a schematic structural diagram of a sensing metal sheet from one viewing angle in one embodiment of the present invention;
图7为本发明的一个实施例中感应金属片另一视角的结构示意图；FIG7 is a schematic structural diagram of a sensing metal sheet from another perspective in one embodiment of the present invention;
图8为本发明的一个实施例中感应金属片偏离原点时的差值三角形示意图。 FIG. 8 is a schematic diagram of a difference triangle when the sensing metal sheet deviates from the origin in one embodiment of the present invention.
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
电磁感应加热电子烟是通过通电螺线管与感应金属片之间的电磁感应热效应使得感应金属片发热，进而对烟草加热的烟支替代品。其中，通电螺线管是一种常见的元件，其可以通过改变线圈内的电流大小产生可人工控制其强度的磁场。为了描述通电螺线管产生的磁感线，首先取通电螺线管的一个元素进行研究，即研究圆环形线圈内电流所产生的磁感线。具体的，将圆环形电流(圆环形线圈内的电流)置于柱坐标系中研究，给定圆环形电流参数：半径为R，所通恒定电流大小为I，电流元位置r′＝(R，φ0，0)，场点位置r＝(ρ，φ，z)，Biot-Savart定律表明：
Electromagnetic induction heating electronic cigarettes are a substitute for tobacco that heats tobacco by making the induction metal sheet heat up through the electromagnetic induction thermal effect between the energized solenoid and the induction metal sheet. Among them, the energized solenoid is a common component, which can generate a magnetic field whose strength can be artificially controlled by changing the current in the coil. In order to describe the magnetic flux lines generated by the energized solenoid, first take an element of the energized solenoid for study, that is, study the magnetic flux lines generated by the current in the circular coil. Specifically, the circular current (the current in the circular coil) is placed in a cylindrical coordinate system for study, and the circular current parameters are given: the radius is R, the constant current is I, the current element position r′＝(R, φ0, 0), the field point position r＝(ρ, φ, z), and the Biot-Savart law shows that:
又因为磁矢势与磁感应强度满足：
And because the magnetic vector potential and magnetic induction intensity satisfy:
则磁矢势的表达式为：
Then the expression of magnetic vector potential is:
电流形状为环形，则磁矢势只在Φ方向上有分量，即磁矢势表达式可写作：
If the current shape is circular, the magnetic vector potential has a component only in the Φ direction, that is, the expression of the magnetic vector potential can be written as:
由于则
because but
这是圆环形电流的磁矢势方程。下面利用它来求解磁感线满足的方程。This is the magnetic vector potential equation for a circular current. Now we use it to solve the equations satisfied by the magnetic flux lines.
请参阅图1，取圆环形电流的一条磁感线，将其绕z轴旋转一周，形成由一簇磁感线组成的曲面。接着作一个与z轴平行的平面，被曲线簇所夹的平面圆域命名为Σ，它的半径为ρ，根据磁通的定义，这簇曲线形成的曲面所夹的磁通数目是一个确定的值。利用Stokes定理，磁通为：
Refer to Figure 1. Take a magnetic flux line of a circular current and rotate it around the z axis to form a curved surface composed of a cluster of magnetic flux lines. Then make a plane parallel to the z axis. The plane circle domain sandwiched by the cluster of curves is named Σ, and its radius is ρ. According to the definition of magnetic flux, the number of magnetic fluxes sandwiched by the surface formed by this cluster of curves is a certain value. Using Stokes' theorem, the magnetic flux is:
由于，
because,
则，
but,
即圆环形电流磁感线满足如下方程：
That is, the magnetic flux lines of the circular current satisfy the following equation:
借助MATLAB可以画出如图2所示的图像，从图2可见，圆环形电流磁感线的MATLAB图像与前面的经验结论吻合。With the help of MATLAB, we can draw the image shown in Figure 2. It can be seen from Figure 2 that the MATLAB image of the circular current magnetic flux lines is consistent with the previous empirical conclusions.
因此，对于通电螺线管，在线性磁介质内可以视为由若干个圆环形电流叠加而成，图3示出了5匝线圈产生的圆环形电流磁感线的MATLAB图像。Therefore, for a solenoid with power, it can be considered as a superposition of several circular currents in the linear magnetic medium. FIG3 shows a MATLAB image of the circular current magnetic flux lines generated by a 5-turn coil.
补充参数螺距u，螺长l＝nu，则通电螺线管磁感线满足以下方程：
Supplementary parameters pitch u, spiral length l = nu, then the magnetic flux lines of the energized solenoid satisfy the following equation:
沿z轴方向置于该磁场中的磁感应材料，会由于电流I的变化引起磁矢势的变化在该材料中产生涡流，涡流的大小根据定理：
The magnetic induction material placed in the magnetic field along the z-axis direction will generate eddy currents in the material due to the change in magnetic vector potential caused by the change in current I. The size of the eddy current is based on the theorem:
上式中，σ为磁感应材料的电导率，f为电源频率，d为磁感应材料片厚度，Bm为磁感应强度幅值。其中，Bm与磁矢势成正比。In the above formula, σ is the conductivity of the magnetic induction material, f is the power frequency, d is the thickness of the magnetic induction material sheet, and Bm is the amplitude of the magnetic induction intensity. Among them, Bm is proportional to the magnetic vector potential.
因此，当一个长方形的磁感应材料片(平面式感应金属片)沿着z轴方向放置在圆形通电螺线管中(x＝0，y＝0)的位置时，在其内部产生的涡流由沿着其x轴和y轴的各个点感应产生，而且所有点的涡流强度均与该材料的电导率、电源频率以及感应点与螺纹管物理中心点的距离成正比。在这种情况下，如果该长方形磁感应材料片沿着x轴和y轴偏离原点(x＝0，y＝0)，则内部产生的涡流，与位于原点位置时产生的涡流对比，其差值与由其两端与原点所连成的三角形面积成正比，即如图4所示的差值三角形，该差值三角形的面积为S＝2r·m。Therefore, when a rectangular magnetic induction material sheet (planar induction metal sheet) is placed in the position (x=0, y=0) of the circular energized solenoid along the z-axis direction, the eddy current generated inside it is induced by various points along its x-axis and y-axis, and the eddy current intensity of all points is proportional to the conductivity of the material, the power frequency, and the distance between the induction point and the physical center of the threaded tube. In this case, if the rectangular magnetic induction material sheet deviates from the origin (x=0, y=0) along the x-axis and y-axis, the eddy current generated inside is compared with the eddy current generated when it is located at the origin, and the difference is proportional to the area of the triangle formed by its two ends and the origin, that is, the difference triangle shown in Figure 4, and the area of the difference triangle is S=2r·m.
鉴于上述不足，本发明提供了一种电磁感应加热烟弹10，该电磁感应加热烟弹10通过设置V型结构金属感应片以减少因金属感应片各部位偏移原点产生的涡流差异，提高了金属感应片的加热效果。具体的，请结合图5至图7，本实施例中，电磁感应加热烟弹10包括烟弹本体200以及插入烟弹本体200内并沿烟弹本体200的长度方向延伸的感应金属片300，感应金属片300的横截面呈V型结构，该感应金属片300可以由长方形感应金属片沿其中线折弯，即沿着x轴和y轴方向折弯，以得到其在z轴方向的截面(即横截面)为V型结构，也可以通过模具成型的方式得到该感应金属片300。In view of the above-mentioned deficiencies, the present invention provides an electromagnetic induction heating cigarette cartridge 10, which reduces the eddy current differences caused by the offset of the origin of various parts of the metal induction sheet by setting a V-shaped structure metal induction sheet, thereby improving the heating effect of the metal induction sheet. Specifically, please refer to Figures 5 to 7. In this embodiment, the electromagnetic induction heating cigarette cartridge 10 includes a cigarette cartridge body 200 and an induction metal sheet 300 inserted into the cigarette cartridge body 200 and extending along the length direction of the cigarette cartridge body 200. The cross-section of the induction metal sheet 300 is a V-shaped structure. The induction metal sheet 300 can be a rectangular induction metal sheet folded along its midline, that is, folded along the x-axis and y-axis directions to obtain a V-shaped cross-section (i.e., cross-section) in the z-axis direction. The induction metal sheet 300 can also be obtained by mold forming.
优选的，本实施例中，感应金属片300的几何中心点与烟弹本体200的几何中心点重合，即，感应金属片300的两端连线后所围成的三角形的中心与烟弹本体200的几何中心(即前述所称的原点)重合，感应金属片300仍沿z轴，即烟弹本体200的长度方向延伸。在此情况下，若感应金属片300的几何中心同样偏离原点，结合图8，当感应金属片处于烟弹的几何中心点时，S0＝2r2·tan(θ)，其中，θ为感应金属片的夹角；当感应金属片处于烟弹的非几何中心点时，S1＝2r2·tan(θ)+2m·r·sin(θ/2)，因此，二者之间的差值ΔS＝2m·r·sin(θ/2)。结合图4与图8，采用本实施例的V型结构的感应金属片，差值三角形仅仅为平面式感应金属片的一部分(sin(θ/2)＜1)，可见，将感应金属片设计为V型结构后，可显著减小感应金属片上各处因偏离原点所产生的涡流差值，感应金属片发热时，其上各处温度的差值减小。 Preferably, in this embodiment, the geometric center point of the sensing metal sheet 300 coincides with the geometric center point of the cigarette cartridge body 200, that is, the center of the triangle formed by connecting the two ends of the sensing metal sheet 300 coincides with the geometric center of the cigarette cartridge body 200 (that is, the origin mentioned above), and the sensing metal sheet 300 still extends along the z-axis, that is, the length direction of the cigarette cartridge body 200. In this case, if the geometric center of the sensing metal sheet 300 also deviates from the origin, combined with Figure 8, when the sensing metal sheet is at the geometric center point of the cigarette cartridge, S 0 =2r 2 ·tan(θ), where θ is the angle of the sensing metal sheet; when the sensing metal sheet is not at the geometric center point of the cigarette cartridge, S 1 =2r 2 ·tan(θ)+2m·r·sin(θ/2), so the difference between the two ΔS=2m·r·sin(θ/2). 4 and 8 , the difference triangle of the V-shaped sensing metal sheet of the present embodiment is only a part of the planar sensing metal sheet (sin(θ/2)＜1). It can be seen that after the sensing metal sheet is designed as a V-shaped structure, the eddy current difference generated by the deviation from the origin at various locations on the sensing metal sheet can be significantly reduced. When the sensing metal sheet is heated, the temperature difference at various locations on the sensing metal sheet is reduced.
本实施例中，感应金属片300采用镍合金不锈钢材料制成，镍合金不锈钢具有高电阻率、低电阻率温度系数、良好的耐蚀性和抗氧化性，可在1000～1100℃温度下长期使用。本实施例采用镍合金不锈钢材料制作感应金属片300，保证了感应金属片300在与烟杆100产生电磁感应时，能够快速地进行电磁高频感应加热。In this embodiment, the induction metal sheet 300 is made of nickel alloy stainless steel, which has high resistivity, low resistivity temperature coefficient, good corrosion resistance and oxidation resistance, and can be used for a long time at a temperature of 1000-1100° C. In this embodiment, the induction metal sheet 300 is made of nickel alloy stainless steel, which ensures that the induction metal sheet 300 can quickly perform electromagnetic high-frequency induction heating when electromagnetic induction is generated with the cigarette rod 100.
进一步的，一实施例中，感应金属片300包括夹角设置的第一翅片310和第二翅片320，第一翅片310与第二翅片320的夹角θ介于90-150°之间。优选的，第一翅片310的厚度d1介于0.05-0.12mm之间；第二翅片320的厚度d2介于0.05-0.12mm之间。第一翅片310的宽度r1介于1.6-2.5mm之间；第二翅片320的宽度r2介于1.6-2.5mm之间。感应金属片300的长度l介于12-17mm之间。本实施例中，将第一翅片310与第二翅片320的夹角θ设计为介于90-150°之间，既方便加工，又可以把原长方形磁感应材料片偏离原点带来的涡流差异减小30-50％(根据前述ΔS的计算公式可得)，如此，显著改善了因感应金属片300上不同位置点因偏离原点产生的涡流差值，使得感应金属片300上各处的发热温度趋于一致，实现了感应金属片300对烟草的均匀加热，改善了烟草的加热效果。Further, in one embodiment, the induction metal sheet 300 includes a first fin 310 and a second fin 320 set at an angle, and the angle θ between the first fin 310 and the second fin 320 is between 90-150°. Preferably, the thickness d1 of the first fin 310 is between 0.05-0.12 mm; the thickness d2 of the second fin 320 is between 0.05-0.12 mm. The width r1 of the first fin 310 is between 1.6-2.5 mm; the width r2 of the second fin 320 is between 1.6-2.5 mm. The length l of the induction metal sheet 300 is between 12-17 mm. In this embodiment, the angle θ between the first fin 310 and the second fin 320 is designed to be between 90-150°, which is convenient for processing and can reduce the eddy current difference caused by the deviation of the original rectangular magnetic induction material sheet from the origin by 30-50% (according to the calculation formula of the aforementioned ΔS). In this way, the eddy current difference caused by the deviation of different positions on the induction metal sheet 300 from the origin is significantly improved, so that the heating temperature of each location on the induction metal sheet 300 tends to be consistent, thereby achieving uniform heating of the tobacco by the induction metal sheet 300 and improving the heating effect of the tobacco.
进一步的，一实施例中，第一翅片310的宽度与第二翅片320的宽度相同，即第一翅片310与第二翅片320合围形成的区域为等腰三角形，如此，一方面降低了找寻感应金属片300几何中心点以使其与原点重合的难度，另一方面，可减小因感应金属片300两侧不对称引起的差值三角形面积增大(r增大)，进而使得涡流差值增大的问题，以尽可能减小感应金属片300上各处的涡流差值。Furthermore, in one embodiment, the width of the first fin 310 is the same as the width of the second fin 320, that is, the area enclosed by the first fin 310 and the second fin 320 is an isosceles triangle. In this way, on the one hand, the difficulty of finding the geometric center point of the sensing metal sheet 300 so that it coincides with the origin is reduced, and on the other hand, the problem of an increase in the area of the difference triangle (increase in r) caused by the asymmetry of the two sides of the sensing metal sheet 300, which in turn increases the eddy current difference, can be reduced, so as to minimize the eddy current difference at various locations on the sensing metal sheet 300.
需要说明的是，本实施例中，设定了感应金属片300的夹角范围，对于待加热的不同类型的烟草产品，所需的加热温度并不相同，在此情况下，针对不同类型的待加热烟草，通过调整施加在烟杆100上线圈的电流大小，并选取适当夹角的感应金属片300置于烟弹本体200的内部，即可达到调节烟草加热温度的目的，使得不同类型的烟草以特定的温度加热，保证了烟草的均匀加热，并使得烟草内的有效物质尽可能多的得到释放。It should be noted that, in the present embodiment, an angle range of the induction metal sheet 300 is set. For different types of tobacco products to be heated, the required heating temperatures are not the same. In this case, for different types of tobacco to be heated, the purpose of adjusting the heating temperature of the tobacco can be achieved by adjusting the current applied to the coil on the cigarette rod 100 and selecting the induction metal sheet 300 with a suitable angle to be placed inside the cigarette cartridge body 200. This ensures that different types of tobacco are heated at a specific temperature, thereby ensuring uniform heating of the tobacco and releasing as much effective substance in the tobacco as possible.
另外，本发明还公开了一种电子烟，该电子烟包括上述电磁感应加热烟弹 10。进一步的，该电子烟还包括用于插装烟弹本体200的烟杆100、绕设于烟杆100的线圈、用于为线圈提供电流的电源以及与烟弹本体200连通的烟嘴，烟弹本体200内设有用于容纳烟草并与金属感应片进行热交换的容纳腔。结合前述说明，本实施例的电子烟通过在其烟弹本体200内设置V型结构的感应金属片300，因感应金属片300偏离原点产生的涡流差值大幅下降，显著改善了感应金属片300对烟草的加热效果。In addition, the present invention also discloses an electronic cigarette, which includes the above-mentioned electromagnetic induction heating cigarette cartridge 10. Furthermore, the electronic cigarette also includes a cigarette rod 100 for inserting a cigarette cartridge body 200, a coil wound around the cigarette rod 100, a power supply for providing current to the coil, and a mouthpiece connected to the cigarette cartridge body 200. The cigarette cartridge body 200 is provided with a receiving cavity for accommodating tobacco and exchanging heat with the metal induction sheet. Combined with the above description, the electronic cigarette of this embodiment is provided with a V-shaped induction metal sheet 300 in its cigarette cartridge body 200. The eddy current difference generated by the induction metal sheet 300 deviating from the origin is greatly reduced, which significantly improves the heating effect of the induction metal sheet 300 on tobacco.
实施本发明的电磁感应加热烟弹10及电子烟，将烟弹本体200内的感应金属片300设计为沿烟弹本体200长度方向延伸且横截面呈V型的结构，相较于平面式结构的感应金属片300，V型结构的感应金属片300的横截面上不同位置点产生的涡流相对于烟弹本体200物理中心处产生的涡流的差值的波动较小，使得感应金属片300在发热时，其横截面上各位置点的温度差值减小，感应金属片300对烟草的加热温度更加均匀，从而提升了对烟草的加热效果以及消费者的使用体验。In the electromagnetic induction heating cigarette cartridge 10 and electronic cigarette of the present invention, the induction metal sheet 300 in the cigarette cartridge body 200 is designed to extend along the length direction of the cigarette cartridge body 200 and have a V-shaped cross-section. Compared with the induction metal sheet 300 with a planar structure, the eddy currents generated at different positions on the cross-section of the induction metal sheet 300 with a V-shaped structure have a smaller fluctuation in the difference between the eddy currents generated at the physical center of the cigarette cartridge body 200, so that when the induction metal sheet 300 is heated, the temperature difference at each position on its cross-section is reduced, and the heating temperature of the tobacco by the induction metal sheet 300 is more uniform, thereby improving the heating effect on the tobacco and the consumer's experience.
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。 The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2023/074705 WO2024164130A1 (en) | 2023-02-07 | 2023-02-07 | Electromagnetic induction heating-based cartridge and electronic cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2023/074705 WO2024164130A1 (en) | 2023-02-07 | 2023-02-07 | Electromagnetic induction heating-based cartridge and electronic cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024164130A1 true WO2024164130A1 (en) | 2024-08-15 |
Family
ID=92261847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2023/074705 Pending WO2024164130A1 (en) | 2023-02-07 | 2023-02-07 | Electromagnetic induction heating-based cartridge and electronic cigarette |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2024164130A1 (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602955A (en) * | 2017-05-10 | 2019-12-20 | 菲利普莫里斯生产公司 | Aerosol-generating articles, devices and systems with optimized substrate use |
| WO2020130752A1 (en) * | 2018-12-21 | 2020-06-25 | 주식회사 이엠텍 | Fine particle generation apparatus having induction heater |
| CN113995170A (en) * | 2021-10-14 | 2022-02-01 | 东莞市麦斯莫科电子科技有限公司 | Oil storage atomizer, tobacco tar bomb, electronic cigarette and tobacco tar bomb assembling method |
| CN114009829A (en) * | 2021-11-05 | 2022-02-08 | 李继红 | Electronic cigarette cartridge |
| CN114173594A (en) * | 2019-07-29 | 2022-03-11 | 菲利普莫里斯生产公司 | Method and feeding system for manufacturing a susceptor sheet comprising an aerosol-forming gel |
| CN216701690U (en) * | 2021-10-14 | 2022-06-10 | 东莞市麦斯莫科电子科技有限公司 | Tobacco tar cartridge for electronic cigarette and electronic cigarette |
| CN216983603U (en) * | 2022-01-24 | 2022-07-19 | 深圳市合元科技有限公司 | Aerosol generator |
| CN217471271U (en) * | 2022-03-24 | 2022-09-23 | 深圳市飞雾科技有限公司 | Electromagnetic induction smoking set structure |
| WO2022208832A1 (en) * | 2021-03-31 | 2022-10-06 | 日本たばこ産業株式会社 | Non-combustion heating-type flavor inhalation article and non-combustion heating-type flavor inhalation product |
| CN218073524U (en) * | 2022-06-10 | 2022-12-20 | 深圳市合元科技有限公司 | Gas mist generating device and heater for gas mist generating device |
-
2023
- 2023-02-07 WO PCT/CN2023/074705 patent/WO2024164130A1/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602955A (en) * | 2017-05-10 | 2019-12-20 | 菲利普莫里斯生产公司 | Aerosol-generating articles, devices and systems with optimized substrate use |
| WO2020130752A1 (en) * | 2018-12-21 | 2020-06-25 | 주식회사 이엠텍 | Fine particle generation apparatus having induction heater |
| CN114173594A (en) * | 2019-07-29 | 2022-03-11 | 菲利普莫里斯生产公司 | Method and feeding system for manufacturing a susceptor sheet comprising an aerosol-forming gel |
| WO2022208832A1 (en) * | 2021-03-31 | 2022-10-06 | 日本たばこ産業株式会社 | Non-combustion heating-type flavor inhalation article and non-combustion heating-type flavor inhalation product |
| CN113995170A (en) * | 2021-10-14 | 2022-02-01 | 东莞市麦斯莫科电子科技有限公司 | Oil storage atomizer, tobacco tar bomb, electronic cigarette and tobacco tar bomb assembling method |
| CN216701690U (en) * | 2021-10-14 | 2022-06-10 | 东莞市麦斯莫科电子科技有限公司 | Tobacco tar cartridge for electronic cigarette and electronic cigarette |
| CN114009829A (en) * | 2021-11-05 | 2022-02-08 | 李继红 | Electronic cigarette cartridge |
| CN216983603U (en) * | 2022-01-24 | 2022-07-19 | 深圳市合元科技有限公司 | Aerosol generator |
| CN217471271U (en) * | 2022-03-24 | 2022-09-23 | 深圳市飞雾科技有限公司 | Electromagnetic induction smoking set structure |
| CN218073524U (en) * | 2022-06-10 | 2022-12-20 | 深圳市合元科技有限公司 | Gas mist generating device and heater for gas mist generating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7105289B2 (en) | Apparatus for heating smoking material | |
| JP7173984B2 (en) | Multilayer susceptor assembly for induction heating of aerosol-forming substrates | |
| JP2018529322A5 (en) | ||
| US12160944B2 (en) | Apparatus for heating smokable material | |
| US20200138098A1 (en) | Aerosol-forming substrate and aerosol-delivery system | |
| EP3925461A1 (en) | Heater for cigarette-type electronic cigarette device, and cigarette-type electronic cigarette device comprising same | |
| US20220338547A1 (en) | Aerosol generation apparatus and aerosol generation substrate | |
| CN112261881B (en) | Induction heating system and heater | |
| KR20200090231A (en) | Heating elements suitable for aerosolizable materials | |
| JP2020511985A (en) | Multilayer susceptor assembly for induction heating of aerosol-forming substrates | |
| US12171267B2 (en) | Heater for cigarette-type electronic cigarette device, and cigarette-type electronic cigarette device including the same | |
| WO2024164130A1 (en) | Electromagnetic induction heating-based cartridge and electronic cigarette | |
| JP2024541764A (en) | Planar consumables for aerosol generators | |
| TW538234B (en) | Constant temperature gradient differential thermal mass flow sensor | |
| JP2013057482A (en) | Induction heating type liquid heater and induction heating type liquid heating apparatus | |
| CN118141150A (en) | Aerosol generating segment and aerosol generating product | |
| EP4434367A1 (en) | Hybrid heating device and aerosol-generating device | |
| CN219645071U (en) | Electromagnetic induction heating cigarette bullet and electron cigarette | |
| CN109497622A (en) | A kind of low temperature cigarette for induction heating | |
| WO2024164132A1 (en) | Multi-section heating-based cartridge structure | |
| CN104918343B (en) | Induction heating apparatus | |
| CN216701665U (en) | Non-contact heater and aerosol generating device | |
| CN119366697A (en) | A multi-sensor electromagnetic induction heating cigarette | |
| CN219613083U (en) | Gas mist generating device and heater for gas mist generating device | |
| US20230363460A1 (en) | Electronic vaporization device and heating component thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23920345 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |