KR20230163291A - Coil winding with air interlayer and aerosol generating device - Google Patents

Abstract

The present invention discloses a coil winding disposed with an air-intervening layer and an aerosol generating device including the same. The coil winding includes a support body (1), and an air-groove (2) is provided on the outer surface of the support body (1), and the coil (3) is wound on the outer surface of the support body (1) and an air-groove. (2) is at least partially covered, and an air-intervening layer defined by the air-groove (2) is formed between the support body (1) and the coil (3). The present invention uses a method of forming an air groove in the coil support to form an air-intervening layer between the coil and the support, thereby reducing heat transfer of the support to the coil, and at the same time, the air-intervening layer is the coil itself. It is advantageous for heat dissipation and reduces coil consumption.

Description

Coil winding and aerosol generating device with an air-intervening layer disposed {COIL WINDING WITH AIR INTERLAYER AND AEROSOL GENERATING DEVICE}

The present invention belongs to the field of aerosol generating devices, in particular to electromagnetic smoking devices, and more particularly to coil windings in which an air-intervening layer is disposed and aerosol generating devices.

Aerosol is a colloidal dispersion system formed by solid or liquid particles dispersed and suspended in a gas medium. Aerosols can be absorbed into the human body through the respiratory system, providing users with a new absorption method. For example, herbal or paste-based aerosols. An atomization device that can generate aerosol by baking and heating the generated material is applied to various fields instead of the existing product form and absorption method and delivers inhalable aerosol to the user.

A conventional baking-type aerosol generating device may atomize the aerosol-generating material by baking and heating it through heating of the heating element based on the electromagnetic induction heating principle. The principle of electromagnetic induction heating is that the alternating current generated by the induction heating power source generates an alternating magnetic field through an inductor (coil), and by placing a magnetic conductive element (heating element) inside it to cut the alternating magnetic field lines, It heats the aerosol-generating material by generating alternating currents (eddy currents), causing atoms inside the heating element to move randomly at high speeds due to the eddy currents, and generating heat energy due to collisions and friction between atoms. Conventional electromagnetically heated aerosol generating devices use a method of directly winding the coil winding around a support that fixes it, that is, tightly wrapping the coil around the support while contacting the surface of the support; Alternatively, a method of installing a separate coil winding fixing support to wind the coil and further arranging a tubular support inside the coil winding fixing support is used. The problem with the former is that since the coil is in close contact with the support, heat transfer occurs when the heating element inside the support is heated, which increases coil consumption due to a rapid rise in temperature of the coil; Alternatively, when the inside is insulated, in the case of coil self-heating, the arrangement between coils is tight and in close contact with the support, so there is no space for the coil to dissipate heat, so the temperature is too high, increasing coil consumption. The latter can improve the heat dissipation of the coil by separating the coil and the tubular support, but parts are added and the structure becomes complicated, and in particular, the heat dissipation of the coil support is too fast, resulting in large power consumption loss.

The coil referred to in the present invention refers to a ring-shaped conductor winding, and a single coil may refer to one turn of conductor included in the coil, and the present invention is particularly applied to the field of electric induction.

In a first aspect, the present invention is a coil winding in which an air-intervening layer is disposed, which includes a support body (1), the outer surface of the support body (1) is provided with an air groove (2), and a coil ( 3) is wound on the outer surface of the support body 1 and at least partially covers the air groove 2, and the air groove 2 is between the support body 1 and the coil 3. Provided is a coil winding in which an air-intervening layer defined by is formed.

Optionally, the number of air-grooves 2 is plural. The distribution of the plurality of air-grooves 2 is not limited and can be uniformly distributed or randomly distributed, and can optionally be matched to the distribution of the wound coils, that is, the support body covered by the coils ( 1), the air-groove (2) is placed correspondingly on the outer surface, and if there is a gap (5) between the coils, there is no need to arrange the air-groove (2) on the outer surface of the gap (5). .

Optionally, the coil (3) covers the entire air-groove (2). That is, the air-groove (2) is completely located between the support body (1) and the coil (3), and the air-groove (2) is not exposed after the coil (3) is wound.

Optionally, the axial width (H1) of the air groove (2) is smaller than the axial width (H2) of a single coil in the coil (3) and the radial depth (T) of the air groove (2) is 0.1mm or more (T≥0.1mm). In an alternative embodiment, the axial width and radial depth of the air-groove 2 are limited, but the circumferential length of the air-groove is not limited. That is, the air-groove 2 may extend for a certain section in the circumferential direction, or the air-groove may be disposed entirely in an area covered by the coil along the extension direction of the coil.

Optionally, the outer surface of the support body 1 is further provided with a protrusion 4, which is disposed between at least two single coils of the coil 3.

Optionally, the number of protrusions 4 is plural.

Optionally, the radial height of the protrusion 4 is less than or equal to the radial height of the coil or greater than the radial height of the coil. That is, the number, location, axial width, radial height, and circumferential length of the protrusions are not particularly limited as long as the position where the coil is wound can be limited and the wound coil can be fixed. Additionally, the positional restrictions on the coil are advantageous for positional correspondence between the coil and the air-groove.

Optionally, a gap 5 is provided between at least a portion of the coils 3 after being wound. A gap 5 may be disposed between all adjacent coils, or a gap 5 may be disposed only in a portion of adjacent coils, and the gap 5 may help the coils dissipate heat. Meanwhile, the role of the protrusion 4 is to limit the position where the coil is wound. Accordingly, the coil can be arranged by combining dense windings and loose windings, thereby ensuring that the gap 5 exists stably.

A second aspect of the present invention provides an aerosol generating device, the aerosol generating device comprising a coil winding on which an air-intervening layer according to the first aspect of the present invention is disposed, and a heating element ( 6) is disposed, and the heating element generates inductive heat by the coil (3).

Optionally, a shielding layer (9) is disposed outside the coil (3). Once the coil winding is completed, the entire coil is wound and fixed by adhesive fixation using the back adhesive provided on the shielding layer 9.

Optionally, a heating element upper cover 7 is disposed at the upper end of the support body 1 and a heating element lower cover 8 is disposed at the lower end of the support body 1.

Optionally, a temperature measurement assembly 10 is disposed on the surface of the heating element 6.

The aerosol generating device of the present invention is an electromagnetic aerosol generating device, and in order to ensure normal use, the aerosol generating device of the present invention further includes a power source, controller, housing, etc. for smoking devices known in the field to which the present invention pertains.

The present invention has the following beneficial effects compared to the prior art.

<1> The coil winding of the present invention arranges an air groove (2) on the outer surface of the support body (1), and winds a coil (3) on the outer surface of the support body (1) to form the air groove ( By at least partially covering 2), an air-intervening layer is formed between the coil and the support using a method of forming an air-groove in the coil support, thereby forming an air-intervening layer between the support body 1 and the coil 3. -By forming an insulating layer, heat transfer of the support to the coil is reduced, thereby reducing coil consumption.

<2> In an optional embodiment, protrusions 4 are further disposed on the outer surface of the support body 1, thereby limiting the position where the coil is wound and fixing the wound coil. Additionally, the positional restrictions on the coil are advantageous for positional correspondence between the coil and the air-groove.

<3> In an optional embodiment, a gap 5 is provided between at least a portion of the coil 3 after being wound, so that heat from the coil itself can be released through the gap 5.

<4> As a result of comparing the means of the coil support with the air groove arranged according to the embodiment of the present invention and the close winding means of the prior art by module actual measurement, the embodiment of the present invention was found to be superior to the module temperature (i.e., the heating unit temperature). The temperature of the outermost shielding layer is reduced by 6.53°C, and the coil lead wire surface temperature is reduced by 4.43°C, effectively lowering the coil surface temperature and reducing coil consumption.

<5> As a result of comparing the means of the coil support with the air groove according to the embodiment of the present invention and the means with the coil winding fixing support separately arranged according to the actual module measurement, the embodiment of the present invention has a lower power consumption of about 14 mwh. , achieves the technical effect of further reducing the overall power consumption of the device.

1 is a diagram showing a partial structure of an aerosol generating device according to an embodiment of the present invention.
Figure 2 is a diagram showing a partial structure of a coil winding according to an embodiment of the present invention.
Figure 3 is a diagram showing another partial structure of a coil winding according to an embodiment of the present invention.
Figure 4 is a diagram showing a three-dimensional structure when no coil is wound on the surface of the support body of the coil winding according to an embodiment of the present invention.
Figure 5 is a diagram showing a three-dimensional structure when a coil is wound on the surface of a coil winding support body according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to examples.

The following examples are provided to more clearly explain the present invention, and those skilled in the art will understand that the scope of the present invention is not limited to these examples. If specific techniques or conditions are not specified in the examples, the invention is carried out according to techniques or conditions or product specifications described in literature in the technical field to which the present invention pertains. The materials or equipment used are all commercially available products unless specified by the manufacturer.

It will be understood by those skilled in the art that as used herein, singular words such as 'one', 'one', 'the' and 'this' may include plural forms, unless clearly stated otherwise. As used herein, the term "comprising" refers to the presence of the foregoing features, integers, steps, operations, components and/or modules, but one or more other features, integers, steps, operations, components, modules and / or the presence or addition of a combination thereof is not excluded. When a component is referred to as being "connected" to another component, that component may be directly connected to the other component, or there may be another component in between. Additionally, 'connection' used in this specification may include wireless connection.

In this specification, “plural” means two or more unless specifically defined. The direction or positional relationship indicated by the terms "inside", "top", "bottom", etc. is a direction or positional relationship based on the illustrations in the attached drawings, and is only for easily and briefly explaining the present invention, and the mentioned device or Since it does not indicate or imply that the components must have a specific orientation or be constructed and operated in a specific direction, it should not be construed as limiting the present invention.

Unless otherwise specified herein, the terms "mounted", "connected", "arranged", etc. should be interpreted as a broad concept, for example, may be fixedly connected, detachably connected, or integrally connected; or mechanically connected. may be connected or electrically connected; or may be directly connected or indirectly connected through an intermediate element. Those skilled in the art will be able to easily understand the specific meaning of the above term in the present invention depending on the specific situation.

Unless otherwise defined, all terms, including technical and scientific terms, used in this specification have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in general dictionaries should be interpreted as having the same meaning as the meaning they have in the context of the related technology, and unless clearly defined in the present disclosure, they should not be interpreted in an idealized or excessively formal sense.

[Comparative Example 1]

As a conventional electromagnetic aerosol generating device, there is no air groove 2 and no protrusions on the surface of the coil support, the coil is tightly wound several times directly on the support, and the coil is in direct contact with the surface of the support.

[Comparative Example 2]

As a conventional electromagnetic aerosol generating device, a coil winding fixing support for winding the coil is separately disposed, a tubular support is further disposed inside the coil winding fixing support, and the coil is tightly wound around the coil winding fixing support.

[Example]

As shown in FIGS. 1 to 5, an embodiment of the present invention provides a coil winding on which an air-intervening layer is disposed and an aerosol generating device including the same.

The coil winding on which the air intervening layer is disposed includes a support body (1), and an air groove (2) is provided on the outer surface of the support body (1), and the coil (3) is formed on the support body (1). (1) and at least partially covers the air-groove (2), and between the support body (1) and the coil (3) the air-groove (2) defined by the air-groove (2) An intervening layer is formed. As a result, an air-insulating layer is formed between the support body 1 and the coil 3, thereby reducing heat transfer toward the coil 3 and reducing coil consumption.

Exemplarily, the air grooves 2 are plural in number and match the distribution of the wound coil, that is, the air grooves 2 are formed on the outer surface of the support body 1 covered by the coil. When placed, the air-groove (2) is not placed on the outer surface of the support body (1) that is not covered by the coil. For example, in an alternative embodiment, if there is a gap 5 between single coils within a coil, an air-groove 2 is disposed on the outer surface of the support body 1 corresponding to the gap 5. I never do that.

Exemplarily, the coil 3 covers the entire air groove 2. Since the air-groove (2) is completely covered, the air layer between the coil and the support is relatively sealed, forming an air-insulating layer between the coil and the support, which further reduces heat transfer of the support to the coil, thereby reducing coil consumption. there is.

As shown in Figure 2, assuming that the axial width of the air groove 2 is H1 and the axial width of the coil 3 is H2, when H1 is less than or equal to H2, a single coil is -Because the groove can be relatively sealed, the technical effect of insulation using air can be obtained by forming a relatively sealed air-groove between the coil and the support. Exemplarily, the axial width (H1) of the air groove (2) = 1.0 mm, the axial width (H2) of a single coil in the coil (3) = 1.65 mm, and H1 is smaller than H2; For another example, the radial depth (T) of the air groove 2 is 0.3 mm.

As shown in FIG. 3, by way of example, the outer surface of the support body 1 is further provided with a protrusion 4, and the protrusion 4 is between at least two single coils of the coil 3. It is placed. The number of protrusions 4 is one or more, and is generally plural. The protrusion (4) is used for winding the coil winding and serves to fix and align the coil winding. In some optional embodiments, a gap is set between the coils of the coil winding to achieve the technical effect of more effective heat dissipation against coil self-heating. By setting the position and size of the protrusions, the spacing between single coils can be controlled as the coil winding is wound. In order to obtain an ideal heat dissipation effect, the position and size of the protrusion 4 can generally be set to correspond to the size of a single coil of the coil winding. For example, in an alternative embodiment, as shown in Figure 3, the radial height of the protrusion 4 (H3) = 0.5 mm, the radial height of the coil (H4) = 0.8 mm, where the protrusion Since the radial height (H3) of (4) is smaller than the radial height (H4) of the coil, positional restrictions on the coil can be better performed. Because the protrusions are part of the support, they conduct some heat. In another alternative embodiment, the radial height H3 of the protrusion 4 is smaller than the radial height H4 of the coil, so that the protrusion 4 can serve as a position limit for the coil winding, as well as By reducing the contact between the coil and the support as much as possible, the technical effect of increasing the heat dissipation area of the coil and reducing the heat conduction of the support to the coil can be achieved.

After the coil winding is wound, a gap 5 is provided between at least a portion of the coil 3. Here, the gap 5 between the wound coils may be arranged uniformly or unevenly. Illustratively, as shown in Figure 1, the wound coil is roughly divided into three parts in the axial direction, namely the upper segment, the middle segment, and the lower segment, and the upper segment and the lower segment each have 3 to 4 turns of coil. One coil is disposed in the central segment, one gap (5) is disposed between the upper segment and the central segment and between the central segment and the lower segment, and protrusions (4) are placed on both sides of the central segment. are placed accordingly. The protrusion 4 realizes the positional limitation of the coil and the arrangement of the gap. Here, the gap between 3 to 4 turns of coil in each of the upper and lower segments is smaller than the gap between the upper segment and the middle segment, and is also smaller than the gap between the middle segment and the lower segment. That is, 3 to 4 turns of coils in each of the upper and lower segments are wound densely, the middle segment is wound sparsely, and the spacing between coils may change gradually. In this embodiment, by arranging the coil in a combination of dense and sparse windings, the self-heating of the coil can be well dissipated through this gap, so various heat dissipation methods can be designed depending on the product.

The aerosol generating device provided in an embodiment of the present invention includes a coil winding on which an air-intervening layer according to the above embodiment is disposed, and a heating element 6 is disposed inside the support body 1, and generally A shielding layer (9) is disposed outside the coil (3). In an optional embodiment, a heating element upper cover 7 is disposed on the upper end of the support body 1 and a heating element lower cover 8 is disposed on the lower end of the support body 1. In an alternative embodiment, a temperature measuring assembly 10 is disposed on the surface of the heating element 6.

As a result of comparing the coil support means with air grooves according to the embodiment of the present invention and the close winding means of the prior art according to Comparative Example 1 through actual module measurements, the embodiment of the present invention showed that the module surface temperature was 6.53°C. decreased, and the coil lead wire surface temperature decreased by 4.43°C. Specific data are shown in Table 1.

[Table 1] Temperature comparison between the means of the prior art and the means where the air grooves are arranged

Comparative Example 1 (Prior Art) Means by which the air-groove is placed difference value Module surface temperature (℃) 91.63 85.10 6.53 Coil lead wire surface temperature (℃) 84.70 80.27 4.43

As a result of comparing the means of the coil support with the air groove according to the embodiment of the present invention and the means with the separately arranged coil winding fixing support according to Comparative Example 2 through actual module measurement, the power consumption of the embodiment of the present invention was about 14mwh is low. Specific data are shown in Table 2.

[Table 2] Comparison of power consumption between means of the prior art and means with air grooves arranged

first generation first generation first generation average difference Means of Comparative Example 2 342 344 341 14 Means by which the air-groove is placed 328 327 330

The coil winding and aerosol generating device according to an embodiment of the present invention forms an air-interposed layer between the coil and the support by arranging an air groove on the outer surface of the support body, thereby reducing heat transfer of the support to the coil. At the same time, by providing a gap between single coils using protrusions, it is advantageous for heat dissipation of the coil's self-heating, thereby reducing coil consumption. Compared to conventional technology, power consumption and module temperature can be significantly reduced, and module consumption can be reduced.

The above description is merely an example of the present invention and is not to be construed as limiting the scope of the patent claims of this application. Any conversion of equivalent structures or equivalent processes made based on the contents of the specification and accompanying drawings of this application, or directly or indirectly applied to other related technical fields, falls within the scope of the patent claims of this application.

1: Support body,
2: Air-Home,
3: coil,
4: projection,
5: gap,
6: Heating element,
7: Heating element upper cover,
8: Heating element lower cover,
9: shielding layer,
10: Temperature measurement assembly.

Claims (10)

A coil winding on which an air-intervening layer is disposed,
Including the support body (1),
An air groove (2) is provided on the outer surface of the support body (1),
A coil (3) is wound on the outer surface of the support body (1) and at least partially covers the air groove (2),
A coil winding with an air-intervening layer disposed, characterized in that an air-intervening layer defined by the air-groove (2) is formed between the support body (1) and the coil (3).
In paragraph 1.
A coil winding in which an air-intervening layer is disposed, characterized in that the number of air grooves (2) is plural.
In paragraph 1.
A coil winding with an air-intervening layer disposed, characterized in that the coil (3) covers the entire air groove (2).
In paragraph 1.
The axial width (H1) of the air groove (2) is smaller than the axial width (H2) of a single coil in the coil (3),
A coil winding with an air-intervening layer disposed, characterized in that the radial depth (T) of the air groove (2) is 0.1 mm or more.
In paragraph 1.
The outer surface of the support body 1 is further provided with protrusions 4, and the protrusions 4 are disposed between at least two single coils in the coil 3. Arranged coil windings.
In paragraph 1.
A coil winding in which an air-intervening layer is disposed, characterized in that the number of protrusions (4) is plural.
In paragraph 1.
A coil winding with an air-intervening layer disposed, characterized in that the radial height of the protrusion (4) is less than or equal to the radial height of the coil or greater than the radial height of the coil.
In paragraph 1.
A coil winding with an air-intervening layer disposed, characterized in that a gap (5) is provided between at least a part of the coil (3) after being wound.
Comprising a coil winding on which an air-intervening layer according to any one of claims 1 to 8 is disposed,
An aerosol generating device, characterized in that a heating element (6) is disposed inside the support body (1), and the heating element generates heat by induction by the coil (3).
In paragraph 9.
An aerosol generating device, characterized in that a shielding layer (9) is disposed outside the coil (3).