CN216723153U - Induction heating assembly and aerosol generating device - Google Patents

Abstract

The utility model relates to an induction heating subassembly and aerosol generating device, the induction heating subassembly including be used for producing induction field's induction coil and set up in induction coil's outside is used for receiving induction field and heat-generating body. The induction coil is arranged in the heating body, and most of magnetic induction wires emitted by the induction coil can penetrate through the inner surface of the heating body, so that energy is utilized more efficiently.

Description

Induction heating assembly and aerosol generating device

Technical Field

The utility model relates to an atomizing field, more specifically say, relate to an induction heating subassembly and aerosol generating device.

Background

The heating non-combustion type atomizer is an aerosol generator which heats an atomizing material to form an aerosol which can be sucked by a low-temperature heating non-combustion method. The existing non-combustion type heating atomization device mostly adopts resistance heating. The heating assembly of resistance-type heating mainly generates heat through the resistance circuit, and the heat source is concentrated on the resistance circuit for the surface temperature of heating assembly distributes unevenly, appears the high temperature easily and burns the condition of atomizing material (resistance heating is faster than electromagnetic heating).

To solve the above problems, aerosol generating devices using electromagnetic induction heating have appeared. Most of the existing aerosol generating devices adopting electromagnetic induction heating arrange the induction coil outside the heating body, in this way, the electromagnetic field inside the induction coil is partially utilized, and the external electromagnetic field is totally lost, so that the energy loss is relatively large.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the present invention is to provide an improved induction heating unit and an aerosol generating device having the same, which are directed to the above-mentioned defects of the prior art.

The utility model provides a technical scheme that its technical problem adopted is: an induction heating assembly is constructed, which comprises an induction coil for generating an induction magnetic field and a heating body arranged outside the induction coil and used for receiving the induction magnetic field to generate heat.

In some embodiments, the induction heating assembly further comprises a controller connected to the induction coil and providing a high frequency current to the induction coil.

In some embodiments, the induction heating assembly further comprises a magnetic core disposed within the induction coil.

In some embodiments, the induction heating assembly further comprises a flange provided at a lower portion of the heating body to fix the induction coil.

In some embodiments, the induction heating assembly further comprises a potting adhesive disposed inside the heating body to fix the induction coil.

In some embodiments, the induction coil is suspended inside the heat generating body.

In some embodiments, the induction coil is in contact with and insulated from the inner surface of the heat generating body.

In some embodiments, the induction coil and the inner surface of the heat generating body have a gap therebetween and are insulated from each other.

In some embodiments, the induction coil is helical and is disposed coaxially with the heating element.

In some embodiments, the heat generating body includes a cylindrical body and a tapered head portion provided at a top portion of the cylindrical body.

In some embodiments, the cylindrical body and the conical head are integrally formed, or the cylindrical body and the conical head are separately manufactured and then assembled together.

In some embodiments, the induction coil has a turn-to-turn pitch that gradually increases from an end proximate to the tapered head to an end distal from the tapered head.

In some embodiments, the heat-generating body is made of stainless steel.

The utility model also provides an aerosol generating device, including above-mentioned arbitrary induction heating subassembly.

Implement the utility model discloses following beneficial effect has at least: the induction coil is arranged in the heating body, and most of magnetic induction wires emitted by the induction coil can penetrate through the inner surface of the heating body, so that energy is utilized more efficiently.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic perspective view of an induction heating assembly according to a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the induction heating assembly of FIG. 1;

fig. 3 is a schematic cross-sectional view of an induction heating unit according to a second embodiment of the present invention;

FIG. 4 is an exploded view of the induction heating assembly of FIG. 3;

fig. 5 is a schematic perspective view of an aerosol generating device according to some embodiments of the present invention.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-2, the induction heating unit 1 of the first embodiment of the present invention may be in the shape of a round bar and includes a heating element 11 in the shape of a round bar and having a hollow inside, an induction coil 13 disposed inside the heating element 11, and a controller connected to the induction coil 13. The controller is used for providing high-frequency current for the induction coil 13, the induction coil 13 is used for generating an induction magnetic field, and the heating body 11 is used for receiving the induction magnetic field to generate heat so as to heat the atomized material. The induction coil 13 is disposed inside the heating body 11, and most of the magnetic induction lines emitted from the induction coil 13 can pass through the inner surface of the heating body 11, thereby more efficiently utilizing energy. It is to be understood that in other embodiments, the shape of the heating element 11 may be a hollow columnar shape, such as a rectangular parallelepiped shape, a dumbbell shape, a sheet shape, a bar shape, a rugby shape, and the like, and is not limited herein.

The heating element 11 may be made of a high temperature resistant metal material such as stainless steel, and may include a cylindrical body 111 and a tapered head 112 disposed at the top of the cylindrical body 111. In this embodiment, the cylindrical body 111 has a cylindrical shape with a closed upper end, the tapered head 112 has a solid conical shape, and the cylindrical body 111 and the tapered head 112 are separately manufactured and then assembled together. In other embodiments, the cylindrical body 111 and the conical head 112 may be integrally formed. In another embodiment, the heating element 11 may be made of a metal material such as iron, copper, or nickel that can generate heat after induction of a magnetic field.

The induction coil 13 is disposed in the cylindrical body 111 and may be disposed coaxially with the cylindrical body 111. The induction coil 13 may be spiral-shaped, and the surface of the wire around which the induction coil 13 is wound is generally insulated, so that the induction coil 13 may be in contact with the inner surface of the cylindrical body 111 or may have a gap. The two electrode leads 131 of the induction coil 13 can be led out from the lower end of the cylindrical body 111. In another embodiment, the induction coil 13 may not be provided coaxially with the tubular body 111. In the present embodiment, the induction coil 13 is made of litz wire, i.e., one induction coil 13 is formed by weaving a plurality of thin conductive wires. In another embodiment, the inner surface of the cylindrical body 111 may be subjected to an insulating treatment in order to improve the insulating effect.

In some embodiments, the turn-to-turn pitch of the induction coil 13 may be configured to be non-uniform according to the temperature field requirements. For example, the upper end turn-to-turn pitch of the induction coil 13 is small for the requirement of high temperature at the upper end, and the lower end turn-to-turn pitch is large for the requirement of low temperature at the lower end. For another example, the pitch of the turns of the induction coil 13 gradually increases from the end near the tapered head 112 to the end far from the tapered head 112.

The induction heating assembly 1 may further include a flange 12 disposed at a lower portion of the heating body 11 in some embodiments. The flange 12 is used to fix the heating element 11 and suspend the induction coil 13 in the heating element 11. In other embodiments, an underfill may be disposed inside the heating element 11 for fixing the induction coil 13, which is also beneficial to make the temperature field of the heating element 11 uniform. The filling glue may be a heat conducting, high temperature resistant glue. The flange 12 can be made of high-temperature resistant plastic or ceramic material, and the top surface of the flange 12 can be flush with the bottom surface of the lowermost turn of the induction coil 13, so that the axial height of the heating body can be reduced, and the structure of the heating body is more compact.

Fig. 3 to 4 show an induction heating unit 1 according to a second embodiment of the present invention, compared to the first embodiment, the induction heating unit 1 of this embodiment further includes a magnetic core 14 disposed in the induction coil 13 along the axial direction. The magnetic core 14 can increase the inductance of the induction coil 13 and reduce the operating frequency. The magnetic core 14 may be cylindrical, and the outer wall surface thereof may be provided with a wire groove 141 for routing the electrode lead 131.

As shown in fig. 5, the aerosol-generating device according to some embodiments of the present invention may include a housing 2, an induction heating assembly 1 disposed in the housing 2, and a battery 4 disposed in the housing 2 and electrically connected to two electrode leads 131 of the induction heating assembly 1, wherein the aerosol-generating substrate 3 may be inserted into the housing 2 from the top of the housing 2. The upper end of the induction heating component 1 is inserted into the aerosol generating substrate 3, and the aerosol generating substrate 3 is baked and heated after being electrified and heated, so that aerosol for a user to suck is formed.

It is to be understood that the above-described respective technical features may be used in any combination without limitation.

The above examples only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (14)

1. An induction heating assembly is characterized by comprising an induction coil (13) used for generating an induction magnetic field and a heating body (11) which is arranged outside the induction coil (13) and used for receiving the induction magnetic field to generate heat.

2. The induction heating assembly according to claim 1, further comprising a controller connected to the induction coil (13) and supplying a high frequency current to the induction coil (13).

3. The induction heating assembly according to claim 1, further comprising a magnetic core (14) arranged within the induction coil (13).

4. The induction heating assembly as claimed in claim 1, further comprising a flange (12) provided at a lower portion of the heating body (11) to fix the heating body (11).

5. The induction heating assembly according to claim 1, further comprising an underfill disposed inside the heat generating body (11) to fix the induction coil (13).

6. The induction heating assembly according to any one of claims 1 to 5, wherein the induction coil (13) is suspended inside the heat generating body (11).

7. The induction heating assembly according to any one of claims 1 to 5, wherein the induction coil (13) is in contact with and insulated from the inner surface of the heat generating body (11).

8. The induction heating assembly according to any one of claims 1 to 5, wherein the induction coil (13) is insulated from the inner surface of the heat generating body (11) with a gap therebetween.

9. The induction heating assembly according to any one of claims 1 to 5, wherein the induction coil (13) is helical and is disposed coaxially with the heating body (11).

10. The induction heating assembly according to any one of claims 1 to 5, wherein the heat generating body (11) comprises a cylindrical main body (111) and a tapered head (112) provided at the top of the cylindrical main body (111).

11. The induction heating assembly of claim 10, wherein the cylindrical body (111) and the conical head (112) are integrally formed, or wherein the cylindrical body (111) and the conical head (112) are separately manufactured and then assembled together.

12. The induction heating assembly of claim 10, wherein the turn pitch of the induction coil (13) gradually increases from an end near the conical head (112) to an end away from the conical head (112).

13. The induction heating assembly according to any one of claims 1 to 5, wherein the heat generating body (11) is made of stainless steel.

14. An aerosol generating device comprising an induction heating assembly according to any of claims 1 to 13.

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