CN114931239A

CN114931239A - Coil winding provided with air interlayer and aerosol generating device

Info

Publication number: CN114931239A
Application number: CN202210563546.2A
Authority: CN
Inventors: 罗永杰; 杨保民; 范吉昌
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-08-23
Also published as: JP2023172914A; WO2023226587A1; KR20230163291A; EP4284116A1

Abstract

The invention discloses a coil winding provided with an air interlayer and an aerosol generating device comprising the same, wherein the coil winding comprises a bracket main body (1), an air groove (2) is formed in the outer surface of the bracket main body (1), a coil (3) is wound on the outer surface of the bracket main body (1) and at least partially covers the air groove (2), and the air interlayer is formed between the bracket main body (1) and the coil (3) by limiting the air groove (2). The invention forms the air interlayer between the coil and the bracket by utilizing the mode of opening the air groove on the coil bracket, thereby reducing the heat transfer of the bracket to the coil, and simultaneously, the existence of the air interlayer is beneficial to the self-heating heat dissipation of the coil and reducing the loss of the coil.

Description

Coil winding provided with air interlayer and aerosol generating device

Technical Field

The invention belongs to the field of aerosol generating devices, particularly relates to an electromagnetic smoking set, and more particularly relates to a coil winding provided with an air interlayer and an aerosol generating device.

Background

The aerosol is a colloidal dispersion system formed by dispersing small solid or liquid particles in a gas medium, and the aerosol can be absorbed by a human body through a respiratory system, so that a novel alternative absorption mode is provided for a user, for example, an atomization device which can bake and heat an aerosol generating substrate of herbs or pastes to generate the aerosol is applied to different fields, and the aerosol which can be inhaled is delivered to the user to replace the conventional product form and absorption mode.

The existing baking type aerosol generating device can also bake and heat the atomized aerosol generating substrate by enabling the heating element to generate heat through an electromagnetic induction heating principle. The principle of electromagnetic induction heating is that alternating current generated by an induction heating power supply generates an alternating magnetic field through an inductor (namely a coil), a magnetic permeability receptor (namely a heating body) is arranged in the inductor to cut alternating magnetic lines, so that alternating current (namely eddy current) is generated in the heating body, the eddy current enables atoms in the heating body to randomly move at high speed, and the atoms collide and rub with each other to generate heat energy, so that the aerosol generating substrate is further heated. In the existing electromagnetic heating aerosol generating device, one is that a bracket for fixing a coil winding is directly wound, namely, the coil is directly wound on the bracket one turn by one turn, and the coil is directly contacted with the surface of the bracket; the other is that a winding fixing bracket is specially arranged for winding the coil, and the winding fixing bracket is internally provided with a tubular bracket. The former has a problem that the coil is in close contact with the bracket, and when a heating body in the bracket is heated, heat is transferred, so that the temperature of the coil is increased too fast, and the line loss is increased; or when the coil is insulated internally, under the condition of self-heating of the coil, the coil is tightly arranged and is tightly attached to the bracket, so that the coil does not have a gap for heat dissipation, the temperature is overhigh, and the coil loss is aggravated. The latter can separate the coil from the tubular support to improve the heat dissipation of the coil, but leads to the increase of parts, complex structure, over-fast heat dissipation of the more critical coil support and larger energy consumption loss.

The present invention has been made to solve the above problems.

Disclosure of Invention

The coil is a ring-shaped wire winding, and is particularly suitable for the field of inductance.

The invention provides a coil winding provided with an air interlayer, which comprises a bracket main body 1, wherein an air groove 2 is arranged on the outer surface of the bracket main body 1, a coil 3 is wound on the outer surface of the bracket main body 1 and at least partially covers the air groove 2, and the air interlayer is formed between the bracket main body 1 and the coil 3 and is limited by the air groove 2.

Optionally, the number of the air slots 2 is plural. The distribution of the plurality of air slots 2 is not limited, and the air slots can be uniformly distributed or randomly distributed, and more optionally, the distribution of the plurality of air slots 2 is matched with the distribution of the wound coil, namely, the coil covers the outer surface of the bracket body 1 to correspond to the air slots 2, and when a gap 5 is arranged between the coil and the coil, the outer surface of the gap 5 does not need to be provided with the air slots 2.

Optionally, the coil 3 completely covers the air slot 2. That is, the air groove 2 is completely located between the holder body 1 and the coil 3, and the air groove 2 is not exposed after winding the coil 3.

Optionally, the axial width H1 of the air slot 2 is smaller than the axial width H2 of the single coil 3; the radial depth T of the air groove 2 is more than or equal to 0.1mm (T is more than or equal to 0.1 mm). In an alternative embodiment, the axial width and radial depth of the air slot 2 are defined, but the circumferential length of the air slot is not limited, that is, the air slot 2 may extend in the circumferential direction for a short time or all the air slots covered by the coil along the extension direction of the coil.

Optionally, the stent main body 1 is further provided with a protrusion 4 on the outer surface, and the protrusion 4 is arranged between at least two single coils of the coils 3.

Optionally, the protrusion 4 is plural.

Optionally, the radial height of the protrusion 4 is less than or equal to or greater than the radial height of the coil. That is, the number, position, axial width, radial depth, and circumferential length of the projections are not limited, and any arrangement may be used as long as the projections can be positioned and wound in accordance with the coil and can fix the coil after winding. In addition, the coil is positioned, and the position correspondence between the coil and the air slot is facilitated.

Optionally, gaps 5 are provided between at least part of the coils 3 after winding. Gaps 5 can be arranged between every two adjacent coils, or gaps 5 can be arranged between only some adjacent coils, and the gaps 5 can be beneficial to heat dissipation of the coils. The protrusion 4 is used for positioning the coil, so that the coil can be closely wound and loosely wound in a combined arrangement manner, and the stable existence of the gap 5 is ensured.

In a second aspect of the present invention, there is provided an aerosol-generating device comprising the coil winding provided with the air interlayer according to the first aspect of the present invention, wherein a heating element 6 is provided inside the holder main body 1, and the heating element is inductively heated by the coil 3.

Optionally, a shielding layer 9 is disposed outside the coil 3. After the coil winding is finished, the shielding layer 9 is attached and fixed by the gum, so that the whole coil is wound and fixed.

Optionally, the top of the bracket body 1 is provided with a heating element upper cover 7, and the bottom is provided with a heating element lower cover 8.

Optionally, a temperature measuring component 10 is further disposed on the surface of the heating body 6.

The aerosol generating device is an electromagnetic aerosol generating device, and in order to ensure the normal use of the aerosol generating device, the aerosol generating device also comprises a power supply, a controller, a shell and the like which are used for smoking sets and are conventional in the field.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the coil winding, the air groove 2 is formed in the outer surface of the support body 1 of the coil winding, the coil 3 is wound on the outer surface of the support body 1 and at least partially covers the air groove 2, and an air interlayer between the coil and the support is formed in a mode that the air groove is formed in the coil support, so that an air heat insulation layer is formed between the support body 1 and the coil 3, heat transfer from the support to the coil is reduced, and coil loss is reduced.

2. In a further optional embodiment, the outer surface of the stent body 1 is further provided with a protrusion 4, and the protrusion is matched with a coil to be positioned and wound, and the coil is fixed after being wound. In addition, the coil is positioned, and the position correspondence between the coil and the air slot is facilitated.

3. In a further alternative embodiment, gaps 5 are arranged between at least part of the coils 3 after winding, and the heat of the coils can be dissipated through the gaps 5.

4. Compared with the scheme of common laminating and winding, the scheme of the coil support with the air slot has the advantages that the temperature of the module (namely the temperature of the outermost shielding layer of the heating unit) is reduced by 6.53 ℃, the surface temperature of the lead wire of the coil is reduced by 4.43 ℃, and the surface temperature of the coil is effectively reduced, so that the effect of reducing the loss of the coil is realized.

5. Through the actual measurement contrast of this module, the coil bracket scheme of taking the air pocket is than the ordinary scheme of independent wire winding fixed bolster, and the energy consumption is low about 14mwh, reaches the technological effect of the whole energy consumption that further reduces the utensil.

Drawings

Figure 1 is a schematic partial structural view of an embodiment of an aerosol-generating device provided by the present invention;

FIG. 2 is a schematic diagram of a partial structure of an embodiment of a coil winding provided by the present invention;

FIG. 3 is a schematic diagram of another partial structure of an embodiment of a coil winding provided by the present invention;

FIG. 4 is a perspective view of a coil winding of an embodiment of the present invention when no coil is wound on the surface of the main body of the support;

FIG. 5 is a perspective view of a bracket according to an embodiment of the present invention, wherein a coil is wound on a surface of the bracket;

the names corresponding to the reference numerals are: 1-bracket main body, 2-air groove, 3-coil, 4-bulge, 5-gap, 6-heating element, 7-heating element upper cover, 8-heating element lower cover, 9-shielding layer and 10-temperature measuring component.

Detailed Description

The present invention will be described in further detail with reference to examples.

It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The materials or equipment used are not indicated by manufacturers, and all are conventional products available by purchase.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wirelessly connected.

In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "provided" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention are understood according to specific situations.

It will be understood by those skilled in the art that, unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Comparative example 1

The surface of a coil support of the existing electromagnetic aerosol generating device is not provided with the air grooves 2 and protrusions, the corresponding coil is directly wound on the support in a circle, and the coil is in direct contact with the surface of the support.

Comparative example 2

The existing electromagnetic aerosol generating device is specially provided with a winding fixing support for winding a coil, a tubular support is arranged inside the winding fixing support, and the coil is tightly wound on the winding support.

Examples

Embodiments of the present invention provide a coil winding provided with an air interlayer and an aerosol-generating device comprising the coil winding provided with an air interlayer, as shown in fig. 1-5.

The coil winding provided with the air interlayer comprises a support body 1, an air groove 2 is formed in 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, and the air interlayer is formed between the support body 1 and the coil 3 and limited by the air groove 2. Therefore, an air heat insulation layer is formed between the bracket main body 1 and the coil 3, the heat transfer to the coil 3 is reduced, and the coil loss is reduced.

Illustratively, the number of the air slots 2 is multiple, and the air slots 2 are matched with the distribution of the coils after winding, that is, the air slots 2 are correspondingly arranged on the outer surface of the bracket main body 1 covered with the coils, and the air slots 2 are not arranged on the outer surface of the bracket main body 1 not covered with the coils. For example, in an alternative embodiment, in a state where a gap 5 is provided between individual coils of the coil, the air groove 2 is not provided on the outer surface of the stent body 1 corresponding to the gap 5.

Illustratively, the coil 3 completely covers the air slot 2. Because the air groove 2 is completely covered, the air layer between the coil and the bracket is relatively closed, so that an air heat insulation layer is formed between the coil and the bracket, the heat transfer of the bracket to the coil can be better reduced, and the loss of the coil is reduced.

As shown in fig. 2, assuming that the axial width of the air slot 2 is H1 and the axial width of the coil 3 is H2, in a state that H1 is less than or equal to H2, a single coil can relatively seal the air slot on the bracket, so that a relatively sealed air slot is formed between the coil and the bracket, and the technical effect of utilizing air for heat insulation is achieved. Illustratively, the axial width H1 of the air slot 2 is 1.0mm, the axial width H2 of a single coil 3 is 1.65mm, and is smaller than the axial width H2 of a single coil 3 is 1.65 mm; for another example, the radial depth T of the air groove 2 is 0.3 mm.

As shown in fig. 3, the stent body 1 is further provided with a protrusion 4 on the outer surface, and the protrusion 4 is disposed between at least two single coils of the coils 3. The number of the projections 4 is one or more, and generally, a plurality. The bulge 4 is used for winding of the coil winding and plays a role in fixing and positioning the coil winding. In some optional embodiments, a space is arranged between the coils of the coil winding to achieve the technical effect of better heat dissipation of self-heating of the coils. By setting the position and the size of the bulges, the space between the single coils can be controlled when the coil windings are wound. Generally, the position and size of the projections 4 are adapted to the dimensions of the individual coils of the coil winding in order to achieve the desired heat dissipation. For example, in an alternative embodiment, as shown in fig. 3, the radial height H3 of the protrusion 4 is 0.5mm, and the radial height H4 of the coil is 0.8mm, wherein the radial height H3 of the protrusion 4 is smaller than the radial height H4 of the coil to better position the coil. Because the protrusion belongs to a part of the support and also conducts a part of 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 realize the positioning function of the coil winding, and the contact between the coil and the support is as small as possible, thereby realizing the technical effects of increasing the heat dissipation area of the coil and reducing the heat conduction of the support to the coil.

Gaps 5 are arranged between at least part of the coils 3 after the coil windings are wound on the coils. Wherein, the gaps 5 between the coils after winding can be uniformly arranged or non-uniformly arranged. Illustratively, as shown in fig. 1, the coil is wound and then divided into three parts according to the axial direction, wherein, the upper part and the lower part of the coil are respectively provided with 3-4 coils, the middle part of the coil is provided with 1 coil, 1 gap 5 is respectively arranged between the middle layer coil and the upper coil and the lower coil, and the two sides of the corresponding middle layer coil are provided with bulges 4. The positioning of the coil and the setting of the gap are realized by the protrusion 4. The distance between the upper and lower 3-4 coils is smaller than the distance between the upper and middle parts and the distance between the lower and middle parts, i.e. the upper and lower 3-4 coils are densely wound, the middle coil is loosely wound, and the distance between the coils can be gradually changed. Through the arrangement mode that the coils are densely wound and sparsely wound, the self-heating of the coils can be better radiated by the intervals, so that different radiating modes can be designed according to different products.

The aerosol generating device provided by the embodiment of the invention comprises the coil winding 1 provided with the air interlayer, the heating body 6 is arranged in the bracket main body 1, and the shielding layer 9 is arranged outside the coil 3 in a general condition. In some alternative embodiments, the holder main body 1 is provided with a heating element upper cover 7 at the top and a heating element lower cover 8 at the bottom. In some optional embodiments, the surface of the heating body 6 is further provided with a temperature measuring component 10.

Through the actual measurement comparison of this module, the coil support scheme of this embodiment area air groove compares the scheme of the ordinary laminating coiling of proportion 1, and module surface temperature reduces 6.53 ℃, and coil lead wire surface temperature reduces 4.43 ℃. See table 1 for temperature comparison between the conventional scheme and the air layer scheme.

Table 1 temperature comparison table unit for the conventional scheme and air layer scheme: c

	Comparative example 1 general protocol	Air layer scheme	Difference value
				Surface of module	91.63	85.10	6.53
Surface of coil lead wire	84.70	80.27	4.43

Through the actual measurement comparison of this module, the coil support scheme of this embodiment area air groove is compared the ordinary scheme of the independent wire winding fixed bolster of ratio 2, and the energy consumption is low about 14 mwh. The specific data are shown in table 2 for the comparison table of the energy consumption of the common scheme and the air layer scheme.

Table 2 energy consumption comparison table unit for the general scheme and the air layer scheme: mwh

According to the coil winding and the aerosol generating device provided by the embodiment of the invention, the air groove is formed on the outer surface of the bracket main body, so that the air layer between the coil and the bracket is formed, the heat transfer of the bracket to the coil is reduced, and meanwhile, the gap is formed between the single coils through the protrusions, so that the self-heating heat dissipation of the coil is facilitated, and the coil loss is reduced. Compared with the prior art, the energy consumption and the module temperature can be obviously reduced, and the module loss is reduced.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are also included in the scope of the present invention.

Claims

1. A coil winding provided with an air interlayer is characterized by comprising a bracket main body (1), wherein an air groove (2) is formed in the outer surface of the bracket main body (1), a coil (3) is wound on the outer surface of the bracket main body (1) and at least partially covers the air groove (2), and the air interlayer is formed between the bracket main body (1) and the coil (3) and is limited by the air groove (2).

2. Coil winding provided with an air interlayer according to claim 1, characterized in that the air slots (2) are plural.

3. Coil winding provided with an air interlayer according to claim 1, characterized in that the coil (3) completely covers the air slot (2).

4. Coil winding provided with an air interlayer according to claim 1, characterized in that the axial width H1 of the air slots (2) is smaller than the axial width H2 of a single coil (3); the radial depth T of the air groove (2) is more than or equal to 0.1 mm.

5. Coil winding provided with an air interlayer according to claim 1, characterized in that the stent body (1) outer surface is further provided with a protrusion (4), said protrusion (4) being provided between at least two individual coils of said coil (3).

6. Coil winding provided with an air interlayer according to claim 1, characterized in that said projections (4) are plural.

7. Coil winding provided with an air interlayer according to claim 1, characterized in that the radial height of the protrusions (4) is less than or equal to or greater than the radial height of the coil.

8. Coil winding provided with an air interlayer according to claim 1, characterized in that gaps (5) are provided between at least parts of the coils (3) after winding.

9. An aerosol-generating device, characterized in that it comprises a coil winding provided with an air interlayer according to any one of claims 1-8, a heating element (6) being arranged inside the holder body (1), said heating element being inductively heated by the coil (3).

10. An aerosol-generating device according to claim 9, in which the coil (3) is provided on the outside with a shielding layer (9).