JP2023059264A - Electronic atomization device, atomization body thereof, atomizer, and heating control method - Google Patents

Abstract

To provide an electronic atomization device capable of effectively ameliorating a liquid leakage phenomenon in an atomizer and substantially improving heating efficiency, an atomization body thereof, an atomizer, and a heating control method.SOLUTION: There are provided an electronic atomization device, an atomization body 10 thereof, an atomizer 20, and a heating control method. The atomizer 20 includes a second coil 21 for heating an aerosol forming substrate by acquiring energy from the atomization body 10 by an electromagnetic coupling method in a state that the atomizer 20 is mounted on the atomization body 10. The atomization body 10 includes a first coil 11. In an operational state of the atomization body 10, the first coil 11 generates electromagnetic energy, heats the aerosol forming substrate stored in the atomizer 20 by the electromagnetic coupling method, and forms aerosol.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to the field of atomization equipment, and more particularly to an electronic atomization device and its atomization body, an atomizer, and a heating control method.

Electronic atomization devices are devices that enable the aerosol-forming substrate in the atomizer to be atomized. It is gaining more and more people's interest and support.

Current methods of heating aerosol-forming substrates are generally divided into contact heating and non-contact heating.

In contact heating, a heating wire (or a heating film plated on ceramics) is usually heated, but such a method requires a circuit connection between the two contacts and the heating part in advance. As shown in FIG. 1, the heating wire H1 of the atomizer 20 contacts two contacts P1 of the atomizing body 10 via two contacts P2. In the operating state of the atomizer, the atomizing main body 10 energizes the heating wire H1 through the contacts P1 and P2. The heating wire H1 has an internal resistance of about 1Ω, and can atomize the aerosol-generating substrate after heating. However, since such a heating method requires a contact to be secured in advance, not only is the assembly complicated, but there is also the risk of liquid leakage. In addition, the electrical resistance of the contacts cannot be ignored, which reduces heat generation efficiency.

On the other hand, in the case of non-contact heating, heating is generally performed by a method of generating eddy currents by electromagnetic induction. As shown in FIG. 2, the winding coil L1 of the atomizing main body 10 and a capacitor (not shown) form an LC resonance circuit, and the most effective oscillation frequency is obtained by controlling the LC resonance circuit. Also, a metal heating sheet H2 (or a metal heating needle) is arranged in the center of the winding coil L1. When the winding coil L1 is energized, an eddy current is formed on the surface of the metal heating sheet H2 to achieve the purpose of heating. However, when the heating method that generates eddy currents by electromagnetic induction is applied to a small heating element, heat generation efficiency is lowered.

A technical problem to be solved by the present invention is to provide an electronic atomization device, an atomization main body thereof, an atomizer, and a heating control method, which prevent liquid leakage and have high heat generation efficiency.

The technical solutions adopted by the present invention to solve the technical problems are as follows.

The aerosol-forming substrate is contained therein and, in conjunction with the atomizing body, constitutes the atomizer of the electronic atomization device to effect atomization of the aerosol-forming substrate. The atomizer includes a second coil that, with the atomizer attached to the atomizing body, extracts energy from the atomizing body in an electromagnetically coupled manner to heat the aerosol-forming substrate.

Optionally, said second coil is an inductor coil. The inductor coil includes two endpoints. The atomizer further includes a heating element, and both ends of the heating element are respectively connected to two end points of the second coil.

Optionally, at least a portion of said heating element is located within said aerosol-forming substrate.

Alternatively, the second coil is a resistance coil formed by winding a heating wire, and both ends of the second coil are short-circuited.

Optionally, said second winding coil is positioned to surround the outer circumference of said aerosol-forming substrate.

Optionally, further comprising a magnetically conductive medium, the second coil is overlying the magnetically conductive medium.

Optionally, said magnetically conductive medium is a soft magnetic material magnetically conductive medium.

Optionally, said magnetically conductive medium is a magnetically conductive medium with a specific Curie point temperature, and said specific Curie point temperature is less than or equal to the dry firing temperature of the aerosol-forming substrate.

Optionally, said magnetically conductive medium is said magnetically conductive medium having a Curie point temperature of 280°C.

The present invention further constitutes an atomization body of an electronic atomization device that cooperates with the atomizer to effect atomization of the aerosol-forming substrate. The atomizing body includes a first coil.

In the operating state of the atomizing body, the first coil generates electromagnetic energy to electromagnetically heat an aerosol-forming substrate contained within the atomizer, thereby forming an aerosol.

The present invention further constitutes an electronic atomization device including the above atomizer and the above atomization body.

Optionally, the arrangement manner of the first coil and the second coil includes up and down arrangement, left and right arrangement, and concentric covering.

The present invention further constitutes a heating control method for an electronic atomizer. The method includes:

A first coil of the atomizing body generates electromagnetic energy while the atomizer is attached to the atomizing body.

The first coil provides energy in an electromagnetically coupled manner to a second coil of the atomizer to heat the aerosol-forming substrate contained within the atomizer and form an aerosol.

When implementing the technical solution of the present invention, the atomizing body is installed with a first coil, and the atomizer is installed with a second coil. In addition, since the first coil transmits electric energy to the second coil by electromagnetic coupling, it is not necessary to install contacts for electrical connection on the atomizer and the atomizing body. Therefore, compared with the conventional contact-type electrical energy transmission (where the atomizer and the atomizing body are connected via contacts), the liquid leakage phenomenon of the atomizer can be effectively improved. In addition, heat generation efficiency can be greatly improved compared to conventional non-contact electrical energy transfer.

The present invention will be further described below in combination with drawings and examples.

FIG. 1 is a schematic diagram of a heating scheme for an aerosol-forming substrate in the prior art. FIG. 2 is a schematic diagram of another aerosol-forming substrate heating scheme in the prior art. FIG. 3 is a schematic structural diagram of Example 1 of the electronic atomization device of the present invention. FIG. 4 is a schematic structural diagram of Example 2 of the electronic atomization device according to the present invention. FIG. 5 is a flow chart of Example 1 of the heating control method for the electronic atomizer according to the present invention.

The technical solutions in the embodiments of the present invention will be clearly and concisely described below in combination with the drawings according to the embodiments of the present invention. It should be noted that the embodiments described here are merely some embodiments of the present invention, and needless to say, they are not all embodiments. All other embodiments obtained by persons skilled in the art without creative labor based on the embodiments of the present invention shall fall within the protection scope of the present invention.

FIG. 3 is a schematic structural diagram of Example 1 of the electronic atomization device of the present invention. The electronic atomization device of this embodiment includes an atomization body 10 and an atomizer 20 that are detachably connected. A first coil 11 is installed in the atomizing main body 10 . The atomizer 20 also contains an aerosol-forming substrate and a second coil 21 . The first coil 11 is an inductor made up of a general winding coil. The arrangement method of the second coil 21 and the first coil 11 is a vertical arrangement, and they are coupled. With the atomizer 20 attached to the atomizing body 10, the first coil 11 generates electromagnetic energy. The second coil 21 uses electromagnetic coupling to obtain energy from the first coil 11 of the atomizing body 10 to heat the aerosol-forming substrate in the atomizer 2 and form an aerosol.

Also, in this embodiment, combining FIG. 3, the second coil 21 is an inductor coil and has two end points. That is, it is also an inductor composed of a general winding coil, and has a small internal resistance. In addition, the electronic atomization device of this embodiment further includes a heating element 22 . The heating element 22 includes (but is not limited to) a heating wire or a ceramic heating core, and is connected to two end points of the second coil 21 . Also optionally, at least a portion of the heating element 22 can be positioned within the aerosol-forming substrate. In this embodiment, the first coil 11 generates electromagnetic energy after being energized, and transfers the electrical energy to the second coil 21 according to the principle of mutual induction. Thereby, by supplying electricity to the heating element 22, atomization by heating of the aerosol-forming substrate is realized.

The electronic atomization device of the above embodiment is provided with a first coil and a second coil that are coupled with each other. There is no need to install it on the atomizing body. Therefore, compared with the conventional contact-type electrical energy transmission (where the atomizer and the atomizing body are connected via contacts), the liquid leakage phenomenon of the atomizer can be effectively improved. In addition, heat generation efficiency can be greatly improved compared to conventional non-contact electrical energy transfer.

Additionally, the electronic atomization device of this embodiment further includes a magnetically conductive medium. The magnetic conducting medium may be a magnetic conducting medium of a soft magnetic material, such as the magnetic conducting rod 30 . In addition, a connecting portion of the atomizer 20 (for realizing connection and mounting with the atomizing body 10) is provided with a recess 23 for accommodating the magnetic conducting rod 30. As shown in FIG. Both the first coil 11 and the second coil 21 are covered with the magnetic conducting rod 30 . In this embodiment, a magnetic conducting medium (eg, a magnetic conducting rod 30) is added between the two coils, thus improving the conduction efficiency of the inductor.

FIG. 4 is a schematic structural diagram of Example 2 of the electronic atomization device according to the present invention. The electronic atomization device of this embodiment differs from the embodiment shown in FIG. 3 only in the following points. That is, the second coil 21' is a resistance coil formed by winding a heating wire, and has a large internal resistance. Moreover, both ends of the second coil 21' are short-circuited. For example, both ends of the second coil 21' are connected by a metal wire 22' (for example, a gold wire) having a small internal resistance, or both ends of the second coil 21' are directly connected. In this embodiment, the heating wire is coiled to form the second coil 21', and both ends of the second coil 21' are short-circuited. Also optionally, a second coil 21' is arranged to surround the outer circumference of the aerosol-forming substrate. The first coil 11 generates electromagnetic energy after being energized. Then, according to the principle of mutual induction, the electrical energy is transferred to the second coil 21' and an induced current is generated in the second coil 21'. Since the second coil 21' is short-circuited, it generates heat, which achieves atomization by heating of the aerosol-forming substrate.

Further, in an alternative embodiment, the magnetic conducting rod 30 is a magnetic conducting rod with a particular Curie point temperature. And, the specific Curie point temperature is equal to or lower than the dry firing temperature of the aerosol-forming substrate. For example, the magnetic conducting rod 30 is a magnetic conducting rod with a Curie point temperature of 280°C. In this embodiment, the magnetic conducting rod has the property that the magnetic conducting performance disappears when the temperature rises to the Curie temperature. If the aerosol-forming substrate is dry-fired, the temperature of the heating element/wire will become too high and the conductivity of the thermal energy will also increase the temperature of the magnetic conducting rod 30 passing through the heating element/wire. For example, if the temperature of the heating element/wire exceeds 280°C and the heating is dry, then a magnetic conducting rod with a Curie point temperature of 280°C may be selected. When the aerosol-forming substrate is dry-fired, the temperature of the magnetic conducting rods rises above the Curie point temperature and the magnetic conducting performance is greatly reduced. Correspondingly, the magnetic induction strength is also reduced and the induced current through the heating element/wires is also reduced to be insufficient to provide the required power output. As described above, since the effect of preventing dry heating is exhibited, the electronic atomization device of the present embodiment does not cause dry heating even if the temperature measurement module is not installed.

It should be understood that the foregoing are merely specific examples of the present invention. In some other embodiments, the arrangement manner of the first coil and the second coil may further include side-to-side arrangement and concentric wrapping. Further, the electronic atomization device may be an integrated electronic atomization device instead of a separate electronic atomization device.

FIG. 5 is a flow chart of Example 1 of the heating control system for the electronic atomizer according to the present invention. Combining FIG. 3 or FIG. 4, the heating control method of the present embodiment includes the following.

Step S10: With the atomizer attached to the atomizing body, the first coil of the atomizing body generates electromagnetic energy.

Step S20: The first coil provides energy to the second coil of the atomizer by electromagnetic coupling to heat the aerosol-forming substrate contained in the atomizer to form an aerosol.

Since the heating control system of this embodiment transmits electric energy by electromagnetic coupling, it is not necessary to install contacts for electrical connection on the atomizer and the atomizing body. Therefore, compared with the conventional contact-type electrical energy transmission, the liquid leakage phenomenon of the atomizer can be effectively improved. In addition, heat generation efficiency can be greatly improved compared to conventional non-contact electrical energy transfer.

Further, the electronic atomization device may be a separate electronic atomization device or an integral electronic atomization device. Also, the arrangement of the first coil and the second coil may include a vertical arrangement, a horizontal arrangement, and a concentric covering. In addition, a magnetic conducting medium (eg, a magnetic conducting rod) may be placed between the first coil and the second coil. Optionally, the magnetic conducting rod is a magnetic conducting rod with a specific Curie point temperature, and the specific Curie point temperature is less than or equal to the dry firing temperature of the aerosol-forming substrate.

The above descriptions are only selective embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations of the present invention exist for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. that are within the spirit and principle of the present invention are included in the claims of the present invention.

FIG. 3 is a schematic structural diagram of Example 1 of the electronic atomization device of the present invention. The electronic atomization device of this embodiment includes an atomization body 10 and an atomizer 20 that are detachably connected. A first coil 11 is installed in the atomizing main body 10 . The atomizer 20 also contains an aerosol-forming substrate and a second coil 21 . The first coil 11 is an inductor made up of a general winding coil. The arrangement method of the second coil 21 and the first coil 11 is a vertical arrangement, and they are coupled. With the atomizer 20 attached to the atomizing body 10, the first coil 11 generates electromagnetic energy. The second coil 21 uses electromagnetic coupling to obtain energy from the first coil 11 of the atomizing body 10 to heat the aerosol-forming substrate in the atomizer 20 and form an aerosol.

Claims (13)

An atomizer for an electronic atomization device containing an aerosol-forming substrate and cooperating with an atomizing body to achieve atomization of the aerosol-forming substrate,
An atomizer comprising a second coil for heating the aerosol-forming substrate by extracting energy from the atomizing body in an electromagnetic coupling manner, with the atomizer attached to the atomizing body. wherein the second coil is an inductor coil, the inductor coil includes two endpoints, the atomizer further includes a heating element, both ends of the heating element are respectively connected to the two endpoints of the second coil; The atomizer of an electronic atomization device according to claim 1. 3. The atomizer of an electronic atomizer of claim 2, wherein at least a portion of said heating element is located within said aerosol-forming substrate. 2. The atomizer of an electronic atomizer according to claim 1, wherein said second coil is a resistance coil formed by winding a heating wire, and both ends of said second coil are short-circuited. 5. The atomizer of an electronic atomization device according to claim 4, wherein the second coil is installed to surround the outer periphery of the aerosol-forming substrate. The atomizer of an electronic atomization device according to any one of claims 1 to 5, further comprising a magnetically conductive medium, wherein the second coil is covered by the magnetically conductive medium. 7. The atomizer of an electronic atomization device as claimed in claim 6, wherein said magnetically conductive medium is a magnetically conductive medium of a soft magnetic material. 7. The electronic fog according to claim 6, wherein the magnetic conductive medium is a magnetic conductive medium having a specific Curie point temperature, and the specific Curie point temperature is equal to or lower than the dry heating temperature of the aerosol-forming substrate. Atomizer for atomizer. 9. The atomizer of an electronic atomization device according to claim 8, wherein said magnetic conductive medium has a Curie point temperature of 280[deg.]C. An atomization body of an electronic atomization device that cooperates with an atomizer to achieve atomization of an aerosol-forming substrate, comprising:
The atomizing body includes a first coil, and in an operating state of the atomizing body, the first coil generates electromagnetic energy to heat an aerosol-forming substrate contained within the atomizer in an electromagnetically coupled manner. and an atomizing body that forms an aerosol. an atomizer according to any one of claims 1 to 9;
An electronic atomization device comprising the atomization body according to claim 10 . 12. The electronic atomization device as claimed in claim 11, wherein the arrangement of the first coil and the second coil includes a vertical arrangement, a horizontal arrangement, and a concentric covering. A heating control method for an electronic atomizer, comprising:
With the atomizer attached to the atomizing body, the first coil of the atomizing body generates electromagnetic energy,
wherein the first coil provides energy to a second coil of the atomizer in an electromagnetically coupled manner to heat an aerosol-forming substrate contained within the atomizer and form an aerosol.

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