JP2023178216A - Electromagnetic heating coil, heating assembly, and electronic atomization device - Google Patents

Abstract

To provide an electronic atomization device in which the size in the radial direction is small and which is advantageous for downsizing the electronic atomization device.SOLUTION: An electromagnetic heating coil is configured by at least one bundle of a conductor wire bundle extending spirally along an axis line. The electromagnetic heating coil includes at least one turn of a sub-coil in an axis line extending direction. Each conductor wire bundle includes at least two lines of conductor wires. The sub-coil of each turn has a first size in the axis line extending direction and a second size in a first direction perpendicular to the axis line extending direction, the first size being larger than the second size.SELECTED DRAWING: Figure 4

Description

The present invention relates to the field of atomization technology, and in particular to electromagnetic heating coils, heating assemblies and electronic atomization devices.

Aerosols are colloidal dispersions formed when small particles of solid or liquid are dispersed and suspended in a gaseous medium.Aerosols are absorbed into the human body through the respiratory system, thus providing users with a new alternative means of absorption. . For example, electronic atomization devices, which produce aerosols by baking and heating herbal or pasty aerosol-generating substrates, have been applied in various fields and can replace traditional product forms and absorption means that can be inhaled by the user. Deliver an aerosol.

Electronic nebulizers utilize a heating assembly to heat an aerosol-generating substrate to generate an aerosol that is inhaled by a user. On the other hand, in the case of an electronic atomizer that adopts an electromagnetic heating method, the heating assembly includes an electromagnetic heating coil and a heating element, the electromagnetic heating coil is energized to generate a magnetic field, and the electromagnetic heating coil generates a magnetic field. The temperature of the heating element increases, the aerosol-generating substrate comes into contact with the heating element, and the heating element heats the aerosol-generating substrate to atomize it.

An electromagnetic heating coil is generally constructed of a conductor wire surrounded by a spiral, but since a conventional spiral coil has a larger radial dimension, the entire electronic atomizer has a larger radial dimension. This is disadvantageous for downsizing the electronic atomization device.

In view of this, we have developed electromagnetic heating coils, heating assemblies, and electronic atomizers that are advantageous in miniaturizing electronic atomizers, to address the problem that conventional electromagnetic heating coils are disadvantageous in miniaturizing electronic atomizers. need to be provided.

An electromagnetic heating coil used in an electronic atomization device, wherein the electromagnetic heating coil is configured such that at least one bundle of conductive wires extends spirally along an axis, and the electromagnetic heating coil is arranged in a direction in which the axis extends. each conductor bundle includes at least one turn of subcoils, each turn of the subcoils having a first dimension in the direction of extension of the axis and a dimension perpendicular to the direction of extension of the axis. a second dimension in a first direction, the first dimension being larger than the second dimension.

In one embodiment, the cross-sectional shape of the subcoil of each turn is rectangular or elliptical.

In one embodiment, the number of conducting wires included in each of the conducting wire bundles is 15 to 300, and the diameter of the conducting wire of each conducting wire is 0.02 mm to 0.5 mm.

In one embodiment, the electromagnetic heating coil includes one to three conductive wire bundles, each of the conductive wire bundles including 100 conductive wires, and the diameter of the conductive wire of each conductive wire is 0.1 mm. be.

A heating assembly comprising a heating element and an electromagnetic heating coil according to any one of the above, wherein the electromagnetic heating coil is provided outside the heating element, and an accommodation cavity is provided inside the heating element. The heating element is provided with an opening that communicates with the accommodation cavity in the direction of extension of the axis.

In one embodiment, the heating assembly further comprises a mounting frame, the electromagnetic heating coil is disposed surrounding the exterior of the mounting frame, the heating element is disposed within the mounting frame, and the first facing at least a portion of the electromagnetic heating coil in the direction of .

In one embodiment, the heating assembly further includes a magnetic shielding member provided outside the electromagnetic heating coil.

In one embodiment, the frequency of the operating current of the electromagnetic heating coil is 20 KHZ-1 MHZ.

In one embodiment, the frequency of the operating current of the electromagnetic heating coil is 100KHZ-600KHZ.

An electronic atomization device comprising a heating assembly according to any one of the above.

According to the electromagnetic coil, heating assembly, and electronic atomizer, the radial dimension of the subcoil in each turn is smaller than the axial dimension, so that the cross section of the subcoil in each turn of the prior art electromagnetic heating coil is circular. Compared to a certain case, by reducing the radial dimension of the electromagnetic heating coil, the radial dimension of the electronic atomizer becomes smaller, which is advantageous for downsizing the electronic atomizer.

1 is an axonometric view of an electronic atomization device provided by an embodiment of the present invention; FIG. 2 is a sectional view of the electronic atomization device shown in FIG. 1. FIG. 2 is a cross-sectional view of the heating assembly of the electronic atomizer shown in FIG. 1; FIG. 4 is a cross-sectional view of the electromagnetic heating coil of the heating assembly shown in FIG. 3; FIG.

In order to more clearly understand the above objects, features, and advantages of the present invention, specific embodiments of the present invention will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the invention. However, the present invention may be embodied in many other forms than those described herein, and similar modifications may be made by those skilled in the art without departing from the spirit of the invention. can. Therefore, the invention is not limited to the specific examples disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "vertical direction", "lateral direction", "length", "width", "thickness", "upper", "lower", "front" ", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", " The directions or positional relationships indicated by "axial direction", "radial direction", "circumferential direction", etc. are based on the directions or positional relationships shown in the drawings, and are intended to facilitate and simplify the explanation of the present invention. are not intended to imply or imply that the devices or elements referred to must have a particular orientation, be constructed or operate in a particular orientation, and are not to be construed as limiting the invention. Shouldn't.

It should be noted that the terms "first" and "second" are for descriptive purposes only and are not to be understood as implying or implying relative importance or number of technical features described. Therefore, the features defined by "first" and "second" can include at least one of the features explicitly or implicitly. In the description of the present invention, unless expressly and specifically limited, "plurality" means at least two, such as two, three, etc.

In the present invention, terms such as "attachment", "coupling", "connection", "fixation", etc. should be understood in a broad sense, and may include, for example, a fixed connection, unless specifically defined and limited. However, it may be a detachable connection or may be integrated. Further, it may be a mechanical connection or an electrical connection. In addition, unless specifically limited, the connection may be direct, or may be indirectly connected through an intermediate medium, or may be connected through internal communication between two elements or interaction between two elements. It's okay. Those skilled in the art can understand the specific meanings of the above terms in the present invention depending on the specific situation.

In the present invention, unless specifically specified and limited, the first feature being "above" or "below" the second feature does not mean that the first and second features may be in direct contact. However, the first and second features may come into contact indirectly via an intermediate medium. Furthermore, the fact that the first feature is "above", "above", and "on the top surface" of the second feature means that the first feature is directly above or diagonally above the second feature, or may simply indicate that the horizontal height of the feature is greater than the second feature. The fact that the first feature is "below", "beneath", and "on the underside" of the second feature means that the first feature is directly below or diagonally below the second feature, or the first feature It may simply indicate that the horizontal height is less than the second feature.

It should be noted that when an element is referred to as being "fixed" or "provided to" another element, it may be present directly on the other element, or there may be intervening elements present. When an element is considered "connected" to another element, it may be directly connected to the other element, or there may be intervening elements. The terms "vertical", "horizontal", "above", "below", "left", "right" and similar expressions used herein are for descriptive purposes only and indicate only embodiments. isn't it.

As described in the background art, since the conventional electromagnetic heating coil has a larger radial dimension, the radial dimension of the entire electronic atomization device becomes larger, which is disadvantageous for downsizing the electronic atomization device. .

Upon investigation by the present inventor, the fundamental cause of the above problem is that in an electronic atomizer that employs an electromagnetic heating method, the heating assembly includes an electromagnetic heating coil and a heating element, and the electromagnetic heating coil is placed outside the heating element. It has been found that it is fitted onto the outside of the shaft and extends spirally along the axis. On the other hand, if an electromagnetic heating coil is used in which the conductor is spirally surrounded, the cross-sectional shape of the subcoil of each turn is circular, and the radial dimension of the electromagnetic heating coil becomes larger. , the size of the entire electronic atomization device in the radial direction becomes larger, which is disadvantageous to miniaturization of the electronic atomization device.

Based on the above problem, please refer to FIG. 1, which is an axonometric diagram of an electronic atomization device 100 provided according to an embodiment of the present invention. The present invention provides an electronic atomization device 100 for heating and atomizing a flower bud-based, herbaceous-based, synthetic-based liquid, solid, or pasty aerosol-generating substrate 300.

2 and 3, FIG. 2 is a cross-sectional view of the electronic atomizer 100 shown in FIG. 1, and FIG. 3 is a cross-sectional view of the heating assembly 200 of the electronic atomizer 100 shown in FIG. The electronic atomizer 100 includes a heating assembly 200, the heating assembly 200 includes a heating element 10 and an electromagnetic heating coil 20 fitted outside the heating element 10, and the electromagnetic heating coil 20 is energized to generate a magnetic field. The heating element 10 heats the aerosol generating substrate 300 by generating heat in the magnetic field generated by the electromagnetic heating coil 20.

Specifically, the heating element 10 is provided with an accommodation cavity 11 , the heating element 10 is provided with an opening 12 that communicates with the accommodation cavity 11 , and the aerosol generation substrate 300 is inserted into the accommodation cavity 11 through the opening 12 . can be housed within. The electromagnetic heating coil 20 is energized to generate a magnetic field, and the heating element 10 generates heat in the magnetic field. Since the aerosol generating substrate 300 is housed in the accommodation cavity 11, at this time, the heating element 10 transfers heat to the aerosol generating substrate 300, and the temperature of the aerosol generating substrate 300 rises and is atomized to form an aerosol. .

In one embodiment, the electromagnetic heating coil 20 is configured by at least one bundle of conductive wires extending spirally along the axis, and the opening 12 is provided at one end of the heating element 10 in the direction of extension of the axis. Here, each conducting wire bundle includes at least two conducting wires, that is, each conducting wire bundle includes at least two conducting wires, and each conducting wire bundle includes at least two (two) conducting wires twisted. It consists of

Referring to FIG. 4, FIG. 4 is a cross-sectional view of the electromagnetic heating coil 20 of the heating assembly 200 shown in FIG. The electromagnetic heating coil 20 includes at least one turn of the subcoil 21 in the axial direction. That is, the electromagnetic heating coil 20 includes at least one turn of the subcoil 21 in the axial direction of the electromagnetic heating coil 20. The subcoil 21 of each turn has a first dimension H in the direction in which the axis extends, and a second dimension W in the first direction (radial direction) perpendicular to the direction in which the axis extends. H is larger than the second dimension W.

In the electromagnetic heating coil 20, the radial dimension of the subcoil 21 of each turn is smaller than the axial dimension, so the cross section of the subcoil 21 of each turn of the electromagnetic heating coil 20 of the prior art is circular (the cross section of the electromagnetic heating coil 20 is circular). When the cross section is circular, there are the following advantages compared to the case where the radial dimension and the axial dimension of the subcoil 21 of each turn are equal.
1. By reducing the radial dimension of the electromagnetic heating coil 20, the radial dimension (space in the lateral direction) of the electronic atomizer 100 is reduced, which is advantageous for downsizing the electronic atomizer 100.
2. When the diameter of the entire electromagnetic heating coil 20 is the same, a larger outer circumference is more advantageous for heat dissipation from the electromagnetic heating coil 20, reducing the temperature of the electromagnetic heating coil 20 and the loss of the electromagnetic heating coil 20. This improves the service life of the electromagnetic heating coil 20.
3. If the diameter of the entire electromagnetic heating coil 20 is the same, the projected area of the orthogonal projection of the electromagnetic heating coil 20 onto the plane where the heating element 10 is located will be larger, increasing the heating area and improving the uniformity of the magnetic field. can be improved.

At the same time, the electromagnetic heating coil 20 provided by this embodiment is configured such that at least one bundle of conductive wires extends spirally along the axis, and each bundle of conductive wires includes at least two conductive wires. Therefore, compared to the case where the electromagnetic heating coil 20 of the prior art is configured of a flat metal strip extending spirally, the alternating current resistance of the electromagnetic heating coil 20 to high frequency current can be reduced, and the electromagnetic heating coil 20 can be made smaller. The energy loss of the oxidation device 100 itself can be reduced.

In one embodiment, the cross-sectional shape of the subcoil 21 of each turn is rectangular. Since the length of one set of sides of the rectangle is longer than the length of the other set of sides, if the cross-sectional shape of the subcoil 21 of each turn is rectangular, one set of long sides of the rectangle is arranged in the direction in which the axis extends. However, by arranging one set of short sides along the first direction (radial direction), it is possible to ensure that the dimension in the axial direction of the subcoil 21 of each turn is larger than the dimension in the radial direction. That is, it can be ensured that the first dimension H is larger than the second dimension W.

In another embodiment, the cross-sectional shape of the subcoil 21 of each turn is elliptical. Since an ellipse has one major axis and one minor axis, when the cross-sectional shape of the subcoil 21 of each turn is an ellipse, the major axis is arranged in the direction in which the axis extends, and the minor axis is arranged in the first direction. (radial direction), it is possible to ensure that the dimension in the axial direction of the subcoil 21 of each turn is larger than the dimension in the radial direction, that is, the first dimension H is larger than the second dimension W. can be guaranteed to be larger than .

As can be understood, and in other embodiments, the cross-sectional shape of the subcoil 21 of each turn is not limited to the rectangular and elliptical shapes described above, but can be set as desired.

In one embodiment, the electromagnetic heating coil 20 is configured by one bundle of conductive wires spirally extending along the axis, and the number of conductive wires included in each conductive wire bundle is 15 to 300. The diameter of each conductor wire is 0.02 mm to 0.5 mm. Specifically, each conducting wire bundle includes 100 conducting wires, and the diameter of each conducting wire is 0.1 mm. When manufacturing the electromagnetic heating coil 20, first, 100 conductive wires with a diameter of 0.1 mm are twisted together to form one conductive wire bundle, and then the conductive wire bundle is pressed into the desired shape using special equipment. Finally, the electromagnetic heating coil 20 is formed by extending the conducting wire bundle spirally along the axis.

In another embodiment, the electromagnetic heating coil 20 is configured by a plurality of conducting wire bundles extending spirally along the axis, and the number of conducting wires included in each conducting wire bundle is 15 to 300. The diameter of each conductive wire is 0.02 mm to 0.5 mm. Specifically, the electromagnetic heating coil 20 is configured by three bundles of conductor wires spirally extending along the axis, each bundle of conductors including 100 conductor wires, and the diameter of each conductor wire is 0. .1mm. When manufacturing the electromagnetic heating coil 20, first, 100 conductive wires with a diameter of 0.1 mm are twisted together to form one conductive wire bundle, then three bundles of conductive wires are twisted together, and then the conductive wires are twisted together using special equipment. The twisted bundle of conductive wires is pressed into a desired shape, and finally the three bundles of conductive wires pressed into a specific shape are extended spirally along the axis to form the electromagnetic heating coil 20.

Of course, in other embodiments, the number of conducting wire bundles included in the electromagnetic heating coil 20, the number of conducting wire strands included in each conducting wire bundle, and the diameter of the conducting wire of each strand are not particularly limited. For example, in some embodiments, the electromagnetic heating coil 20 is configured by two bundles of conducting wire extending spirally along the axis, each conducting wire bundle including 150 conducting wires, and each conducting wire bundle including 150 conducting wires. The diameter of is 0.05mm.

In one embodiment, with continued reference to FIGS. 2 and 3, the heating assembly 200 further includes a mounting frame 30, the electromagnetic heating coil 20 is disposed around the exterior of the mounting frame 30, and the heating element 10 is mounted on the mounting frame 30. It is provided within the frame 30 and faces at least a portion of the electromagnetic heating coil 20 in the first direction. In this way, the assembly and fixing of the heating element 10 and the electromagnetic heating coil 20 becomes easy.

The heating assembly 200 further includes a magnetic shield member 40 provided outside the electromagnetic heating coil 20 . On the other hand, the magnetic shielding member 40 can fix the electromagnetic heating coil 20, and the magnetic shielding member 40 can avoid radiating electromagnetic waves from the electromagnetic heating coil 20 to the outside.

In one embodiment, the frequency of the operating current of the electromagnetic heating coil 20 is 20 KHZ-1 MHZ. In this way, the electromagnetic heating coil 20 operates with a current of medium and low frequencies, and since the current density is greater at this frequency, the electromagnetic heating coil 20 allows current to flow through the conductor located at the intermediate position, effectively heating the conductor. can be used.

Furthermore, the frequency of the operating current of the electromagnetic heating coil 20 is 100KHZ-600KHZ. This ensures that the electromagnetic heating coil 20 operates with a current of an appropriate frequency, and ensures that current flows through all the conductors included in the electromagnetic heating coil 20, further improving the utilization rate of the conductors. can be done.

Another embodiment of the present invention further provides a heating assembly 200 included in the electronic atomization device 100.

Yet another embodiment of the present invention further provides an electromagnetic heating coil 20 included in the heating assembly 200. The electromagnetic heating coil 20 is configured such that at least one bundle of conductive wires extends spirally along the axis, and each bundle of conductive wires includes at least two conductive wires. The electromagnetic heating coil 20 includes a subcoil 21 having at least one turn in the direction of extension of the axis. The subcoil 21 of each turn has a first dimension H in the direction in which the axis extends, and a second dimension W in the first direction perpendicular to the direction in which the axis extends; is larger than the dimension W of .

According to the electromagnetic heating coil 20, the dimension in the radial direction of the subcoil 21 of each turn is smaller than the dimension in the axial direction. In comparison, by reducing the radial dimension of the electromagnetic heating coil 20, the radial dimension (space in the lateral direction) of the electronic atomizer 100 becomes smaller, which is advantageous for downsizing the electronic atomizer 100. .

The technical features of the embodiments described above can be combined arbitrarily, and in order to simplify the explanation, all possible combinations of the technical features of the embodiments described above are not explained. , unless there is a contradiction in the combination of these technical features, it should be considered within the scope described in this specification.

The above examples merely illustrate some embodiments of the present application, and although the description thereof is specific and detailed, it should not be understood as limiting the scope of the invention of the present application. It should be noted that those skilled in the art can make several modifications and improvements that fall within the scope of the present application without departing from the spirit thereof. Accordingly, the patentable scope of this application shall be as defined by the appended claims.

100 Electronic atomizer 200 Heating assembly 300 Aerosol generation substrate 10 Heating element 11 Accommodation cavity 12 Opening 20 Electromagnetic heating coil 21 Subcoil H First dimension W Second dimension;
30 Mounting frame 40 Magnetic shielding member

Claims (10)

An electromagnetic heating coil used in an electronic atomization device,
The electromagnetic heating coil is configured such that at least one bundle of conductive wires extends spirally along an axis, the electromagnetic heating coil includes a subcoil having at least one turn in the extending direction of the axis, and each bundle of conductive wires has , including at least two conductive wires,
The subcoil of each turn has a first dimension in the direction of extension of the axis and a second dimension in a first direction perpendicular to the direction of extension of the axis, and the first dimension is An electromagnetic heating coil characterized in that it is larger than a second dimension. The electromagnetic heating coil according to claim 1, wherein the subcoil of each turn has a rectangular or elliptical cross-sectional shape. The number of conducting wires included in each of the conducting wire bundles is 15 to 300, and the diameter of the conducting wire of each conducting wire is 0.02 mm to 0.5 mm. Electromagnetic heating coil. The electromagnetic heating coil includes one to three bundles of the conducting wire, each of the conducting wire bundles including 100 conducting wires, and the diameter of the conducting wire of each conducting wire is 0.1 mm. The electromagnetic heating coil according to claim 1. A heating element and an electromagnetic heating coil according to claim 1, the electromagnetic heating coil being provided outside the heating element,
A heating assembly, wherein the heating element is provided with an accommodation cavity, and the heating element is provided with an opening that communicates with the accommodation cavity in the direction of extension of the axis. The heating assembly further includes a mounting frame, the electromagnetic heating coil is disposed surrounding the exterior of the mounting frame, and the heating element is disposed within the mounting frame and coupled to the electromagnetic heating coil in the first direction. 6. The heating assembly of claim 5, wherein the heating assembly is opposite at least a portion of the heating coil. The heating assembly further includes a magnetic shielding member provided outside the electromagnetic heating coil.
6. A heating assembly according to claim 5. The heating assembly according to claim 5, wherein the frequency of the operating current of the electromagnetic heating coil is 20KHZ-1MHZ. The heating assembly according to claim 8, wherein the frequency of the operating current of the electromagnetic heating coil is 100KHZ-600KHZ. An electronic atomization device comprising the heating assembly according to any one of claims 5 to 9.