CN217906347U - Aerosol forming device and heating assembly thereof - Google Patents

Abstract

The application provides an aerosol forming device and a heating assembly thereof, wherein the heating assembly comprises an induction coil, the induction coil is at least partially spirally wound to form a spiral shape, and two ends of the induction coil are both configured to be connected with electric electrodes; wherein, induction coil is under the circular telegram state, and the electromagnetic field that produces and induction coil produce induction heating, and induction coil self still produces joule heat, all is used for heating aerosol and generates the substrate in order to produce the aerosol. The application provides a heating element both had been regarded as electromagnetic field generating element, and self is regarded as induction heating element again simultaneously, for the heating element structure of current induction coil with the receptor, has reduced heating element's volume, and can reduce the volume of using this heating element's aerosol forming device.

Description

Aerosol forming device and heating assembly thereof

Technical Field

The present application relates to the field of atomization, and more particularly to an aerosol-forming device and a heating assembly thereof.

Background

The aerosol-forming device is used to heat an aerosol-generating substrate, for example, a solid substrate of plant leaves having a particular aroma is baked in a heat-non-combustible manner such that the solid substrate of the leaves is baked to form an aerosol.

Currently, heating assemblies in aerosol-forming devices typically comprise a coil for generating an electromagnetic field under an energized condition and a susceptor positioned within the electromagnetic field and arranged to induce a current under the influence of the electromagnetic field so as to generate induction heat for heating the aerosol-generating substrate.

However, existing heating assemblies have significant limitations, such as large size, complex manufacturing, etc.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application provides an aerosol-forming device and a heating assembly thereof, so as to solve the technical problems of low heating efficiency and large size of the existing heating assembly.

In order to solve the above technical problem, the present application provides a heating assembly for generating aerosol, including an induction coil, the induction coil being at least partially wound to form a spiral segment, and two ends of the induction coil being configured to be connected with electric electrodes; wherein the induction coil generates an electromagnetic field and induction heating with the induction coil under a powered condition, and the induction coil itself also generates joule heat, both for heating the aerosol generating substrate to generate aerosol.

In an embodiment, two ends of the induction coil are bent outward to form the power connection electrodes, and the two power connection electrodes are respectively located at two ends of the spiral section.

In an embodiment, the spiral section defines a cavity for receiving at least a portion of the aerosol-generating substrate.

In one embodiment, the heating assembly further comprises a base body, the base body comprises a supporting portion and a tip portion arranged at one end of the supporting portion, and a part of the induction coil is arranged along the periphery of the supporting portion in a winding mode and forms the spiral section; wherein the tip is for breaking open the aerosol-generating substrate such that the heating assembly is inserted within the aerosol-generating substrate.

In one embodiment, the two contact electrodes extend out of the supporting portion from an end of the supporting portion away from the tip portion.

In an embodiment, a groove is formed on the supporting portion, the groove extends from one end of the supporting portion close to the tip portion to one end of the supporting portion far away from the tip portion, one of the power connection electrodes is located at one end of the supporting portion far away from the tip portion, and the other power connection electrode is arranged in the groove and extends out of the supporting portion along the groove.

In an embodiment, one of the power connection electrodes is located at an end of the supporting portion away from the tip portion, and the other power connection electrode is embedded in the supporting portion and extends out of the supporting portion from an end of the supporting portion away from the tip portion.

In an embodiment, a projection of the tip portion in a direction of the tip portion towards the support portion completely covers a projection of the support portion and the spiral section.

In one embodiment, the tip part is a cone, and the supporting part is a cylinder and is positioned on the bottom surface of the tip part; or the tip part is in a triangular sheet shape, the supporting part is in a rectangular sheet shape, and the supporting part is positioned on the bottom edge of the tip part.

In one embodiment, the induction coil is made of a ferromagnetic material, or a metallic material mixed with a ferromagnetic material and a non-ferromagnetic material.

In one embodiment, the material of the substrate comprises an insulating ceramic or glass.

In order to solve the above technical problem, the present application further provides an aerosol-forming device comprising a heating module power supply assembly, wherein the heating module is the heating module according to any one of the above items; the power supply assembly is electrically connected with the heating assembly and supplies power to the heating assembly.

Different from the prior art, the aerosol forming device and the heating assembly thereof provided by the application comprise an induction coil, wherein at least part of the induction coil is spirally wound to form a spiral shape, and two ends of the induction coil are both configured to be connected with electric electrodes; wherein, induction coil is under the circular telegram state, and the electromagnetic field that produces and induction coil produce induction heating, and induction coil self still produces joule heat, all is used for heating aerosol and generates the substrate in order to produce the aerosol. The application provides a heating element both as electromagnetic field generating element, self is as induction heating element again simultaneously, adds the heating element structure of receptor for current induction coil, has reduced heating element's volume, and then can reduce the volume of using this heating element's aerosol forming device.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of an embodiment of an aerosol-forming device provided herein;

FIG. 2 is a schematic diagram of the cooperating structure of the heating assembly and the support in the aerosol-forming device of FIG. 1;

FIG. 3 is a schematic diagram of an embodiment of a heating element in the aerosol-forming device of FIG. 1;

figure 4 is a schematic structural view of another embodiment of an aerosol-forming device as provided herein;

FIG. 5 is a schematic diagram of an embodiment of a heating element in the aerosol-forming device of FIG. 4;

FIG. 6 is a schematic diagram of the induction coil in the heating assembly shown in FIG. 5;

FIG. 7 is a schematic view of the structure of the substrate in the heating assembly shown in FIG. 5;

FIG. 8 is a schematic diagram of another embodiment of a heating element in the aerosol-forming device of FIG. 4;

FIG. 9 is a schematic diagram of the induction coil in the heating assembly shown in FIG. 8;

fig. 10 is a schematic view of the structure of the substrate in the heating module shown in fig. 8.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying a number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. In the embodiments of the present application, all directional indicators (such as upper, lower, left, right, front, rear, 8230; \8230;) are used only to explain the relative positional relationship between the components at a specific posture (as shown in the drawing), the motion, etc., and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an aerosol-forming device provided in the present application. The aerosol-forming device 100 may be used to heat an aerosol-generating substrate 10. It can be used in different fields, such as medical nebulization, cosmetic nebulization and the field of leisure sucking, etc. In particular, the aerosol-forming device 100 comprises a housing 101 and a heating assembly 20 and a power supply assembly 30 disposed within the housing 101. The heating assembly 20 is for heating the aerosol-generating substrate 10 to form an aerosol, the power supply assembly 30 comprises a battery 31, an airflow sensor (not shown), and a control circuit board (not shown), among other things; the power supply assembly 30 is used to supply power to the heating assembly 20 and to control the operation of the heating assembly 20 to heat the aerosol-generating substrate 10 to form an aerosol. Wherein the airflow sensor is configured to detect a change in airflow in the aerosol-forming device 100, and the control circuit board activates the battery 31 to supply power to the heating assembly 20 according to the change in airflow detected by the airflow sensor. In an alternative embodiment, the airflow sensor may be absent and the control circuit board activates the battery 31 to power the heating assembly 20 in response to a control signal.

Referring to fig. 2, 2 are schematic views of the cooperating structure of the heating assembly and the support member of the aerosol-forming device of fig. 1. The present application provides a heating assembly 20, comprising an induction coil 21, wherein the induction coil 21 is at least partially wound to form a spiral section 212, and both ends of the induction coil 21 are configured to be connected to an electric electrode 211, for example, a first end of the induction coil 21 is configured to be a first electric electrode 2111, and a second end of the induction coil 21 is configured to be a second electric electrode 2112. Wherein the induction coil 21 has a resistivity such that joule heat is generated under an energized condition, and the electromagnetic field generated by the induction coil 21 under the energized condition is also capable of generating induction heating with itself, both for heating the aerosol-generating substrate 10 to generate an aerosol.

Specifically, the spiral section 212 of the induction coil 21 generates an electromagnetic field under the energized condition to generate induction heating with itself, and the material of the induction coil 21 is a material capable of generating an electromagnetic field under the energized condition and performing induction heating with itself, for example, the induction coil 21 is made of a ferromagnetic material capable of performing induction heating with itself, such as iron, nickel, cobalt, iron-chromium-cobalt, alnico, neodymium-iron-boron, etc.; or a metal material mixed with ferromagnetic material and non-ferromagnetic material with large resistivity, such as nichrome, cuprum, nichrome, ferrochromium alloy, etc.

Wherein the induction coil 21 is at least partially helically wound to form a helical section 212, for example, the induction coil 21 may be helically wound around the support 40 or otherwise configured to contact the aerosol-generating substrate 10 and heat the aerosol-generating substrate 10 to generate an aerosol, both ends of the induction coil 21 are configured to receive electrical electrodes 211 for electrical connection with the positive and negative electrodes of the power supply assembly 30, respectively, the control circuit board controls the battery 31 to supply power to the induction coil 21 when receiving a control signal or an external suction signal from the aerosol-forming device 100, when the induction coil 21 is supplied with current, an electromagnetic field is generated in which the induction coil 21 is located, and is itself an inductively heatable material, so that induction heating can be performed in the electromagnetic field, and in addition, the material of the induction coil 21 comprises a metal material having a high resistivity, and when current is supplied, joule heating can be generated.

Specifically, the induction coil 21 can generate an electromagnetic field under a power-on condition, and at the same time, the induction coil itself can be used as a susceptor for induction heating, so that the volume of the heating assembly structure is smaller than that of a conventional heating assembly structure including an induction coil and a susceptor, and the volume of the aerosol-forming device 100 using the heating assembly 20 can be further reduced.

In this embodiment, the power connection electrodes 211 are located at two ends of the spiral section 212, and the two power connection electrodes 211 are electrically connected to the power module 30 through leads. Specifically, the induction coil 21 is wound in a clockwise direction or a counterclockwise direction to form a spiral section 212, two ends of the spiral section 212 are configured as power connection electrodes 211, and the two power connection electrodes 211 are electrically connected to the positive and negative electrodes of the power module 30 by welding metal leads.

In this embodiment, the helical section 212 defines a cavity (not shown) substantially the same shape as the aerosol-generating substrate 10, and the helical section 212 defines a cavity 2120 for receiving at least a portion of the aerosol-generating substrate 10. Where the aerosol-generating substrate 10 is a cylinder, the aerosol-generating substrate 10 may be round, oval, rectangular or of other cross-section, and the cavity defined by the spiral section 212 is substantially the same shape as the aerosol-generating substrate 10, such that when the aerosol-generating substrate 10 is received in the cavity defined by the spiral section 212, the outer surface of the aerosol-generating substrate 10 may be brought into contact with the inner surface of the spiral section 212, thereby maximising the heating effect of the spiral section 212 on the aerosol-generating substrate 10.

In another embodiment, referring to fig. 3, fig. 3 is a schematic diagram of an embodiment of a heating element in the aerosol-forming device of fig. 1. Two ends of the induction coil 21 are bent outwards to form the power connection electrodes 211, and the two power connection electrodes 211 are respectively located at two ends of the spiral section 212. Specifically, the induction coil 21 is wound into a tube shape along a clockwise direction or a counterclockwise direction, and two ends of the induction coil are bent outward to form two electrical connection electrodes 211, the other portion of the induction coil 21 forms a spiral section 212, the two electrical connection electrodes 211 are respectively located at two ends of the spiral section 212, and the aerosol-generating substrate 10 is accommodated in a cavity 2120 defined by the spiral section 212.

In the present embodiment, the angle between the outward bending angle of the electrical connection electrode 211 and the included angle a of the spiral section 212 is 45 degrees to 135 degrees, which is not limited herein and can be selected according to actual situations.

4-7, FIG. 4 is a schematic structural view of another embodiment of an aerosol-forming device provided herein; FIG. 5 is a schematic diagram of an embodiment of a heating element in the aerosol-forming device of FIG. 4; FIG. 6 is a schematic view of the structure of an induction coil in the heating assembly shown in FIG. 5; fig. 7 is a schematic view of the structure of the substrate in the heating assembly shown in fig. 5. The heating assembly 20 is for insertion into an aerosol-generating substrate 10 to heat the aerosol-generating substrate 10, in particular, the heating assembly 20 further comprises a base 23, the base 23 comprises a support 231 and a tip 232 disposed at one end of the support 231, a portion of the induction coil 21 is disposed along an outer circumference of the support 231 and forms a spiral section 212; the tip 232 is used to break open the aerosol-generating substrate 10 to allow the heating assembly 20 to be inserted into the aerosol-generating substrate 10.

In the present embodiment, the material of the substrate 23 is insulating ceramic or glass. In particular, in the energised state of the induction coil 21, no induced current is generated in the substrate 23 and thus no induction heating occurs, and the aerosol-generating substrate 10 is heated only by induction heating and joule heating generated by the induction coil 21 under the energised condition. In the present embodiment, the base 23 has good thermal stability and rigidity, for example, the thermal conductivity of the base 23 made of insulating ceramic may be 4-18W/(m.k), the bending strength may be more than 600MPa, the thermal stability may exceed 450 degrees, and the fire resistance may be higher than 1450 degrees.

Of course, the material of the base 23 may also be a ferromagnetic material, with the induction coil 21 inducing current in the base 23 when energized to generate induction heating, with both the induction coil 21 and the base 23 being arranged to heat the aerosol-generating substrate 10 to generate an aerosol.

In this embodiment, the two contact electrodes 211 extend from the supporting portion 231 to the supporting portion 231 at an end of the supporting portion 231 away from the tip portion 232. In particular, the tip 232 and at least a portion of the support 231 are adapted to be inserted into the aerosol-generating substrate 10, and the provision of two electrically powered electrodes 211 extending from the support 231 at an end of the support 231 remote from the tip 232 facilitates electrical connection of the electrically powered electrodes 211 to the power supply assembly 30.

An insulating layer (not shown) is disposed on the two contact electrodes 211 to prevent the two contact electrodes 211 from being short-circuited when being energized. The material of the protective layer can be rubber, plastic and other non-conductive materials.

Referring to fig. 7, a groove 2310 is formed on the supporting portion 231, the groove 2310 extends from one end of the supporting portion 231 close to the tip portion 232 to one end of the supporting portion 231 far from the tip portion 232, one of the electrical connection electrodes 211 is located at one end of the supporting portion 231 far from the tip portion 232, and the other electrical connection electrode 211 is disposed in the groove 2310 and extends out of the supporting portion 231 along the groove 2310. Specifically, the first end of the induction coil 21 is disposed in the groove 2310 of the supporting portion 231, and extends from the end of the groove 2310 close to the tip portion 232 to the end far from the tip portion 232, and extends out of the supporting portion 231 to serve as the first power connection electrode 2111, then the portion between the first end and the second end of the induction coil 21 is wound around the side surface of the supporting portion 231 in a clockwise direction or a counterclockwise direction from the end of the supporting portion 231 close to the tip portion 232 to form the spiral section 212, and finally the second end of the induction coil 21 extends out of the supporting portion 231 to serve as the second power connection electrode 2112.

In one embodiment, one of the contact electrodes 211 is located at one end of the supporting portion 231 away from the tip portion 232, and the other contact electrode 211 is embedded in the supporting portion 231 and extends out of the supporting portion 231 from one end of the supporting portion 231 away from the tip portion 232. Specifically, the base 23 may be formed by injection molding or the like, for example, by injection molding a supporting portion 231 and a tip portion 232 connected to the supporting portion 231 at a first end of the induction coil 21, so as to form the base 23, and the first end of the induction coil 21 extends from one end of the supporting portion 231 far from the tip portion 232 to form the supporting portion 231 as a first power electrode 2111, then the portion between the first end and the second end of the induction coil 21 is wound around the side surface of the supporting portion 231 in a clockwise direction or a counterclockwise direction from one end of the supporting portion 231 near the tip portion 232 to form a spiral section 212, and finally the second end of the induction coil 21 extends out of the supporting portion 231 to form a second power electrode 2112.

In the present embodiment, in the direction that the tip 232 faces the supporting portion 231, the projection of the tip 232 completely covers the projection of the supporting portion 231 and the spiral section 212. As will be appreciated, the tip 232 serves to break open the aerosol-generating substrate 10 and the spiral segment 212 on the support 231 serves to heat the aerosol-generating substrate 10 to generate an aerosol, and by providing that the projection of the tip 232 completely covers the projection of the support 231 and the spiral segment 212, the resistance of the spiral segment 212 to the spiral segment 212 by the aerosol-generating substrate 10 during insertion of the tip 232 into the aerosol-generating substrate 10 may be reduced, resulting in displacement or damage of the spiral segment 212, thereby protecting the spiral segment 212.

In this embodiment, the tip 232 is a cone, and the supporting portion 231 is a cylinder and is located on the bottom surface of the tip 232.

Referring to fig. 8-10, fig. 8 is a schematic diagram of another embodiment of a heating element in the aerosol-forming device of fig. 4; FIG. 9 is a schematic diagram of the induction coil in the heating assembly shown in FIG. 8; fig. 10 is a schematic view of the structure of the substrate in the heating assembly shown in fig. 8. The heating assembly 20 is for insertion into an aerosol-generating substrate 10 to heat the aerosol-generating substrate 10, in particular, the heating assembly 20 comprises a base 23, the base 23 comprises a support 231 and a tip 232 disposed at one end of the support 231, a portion of the induction coil 21 is disposed along an outer circumference of the support 231 and forms a spiral section 212; the tip 232 serves to break open the aerosol-generating substrate 10 so that the heating assembly 20 is inserted into the aerosol-generating substrate 10.

The heating element 20 provided in this embodiment is different from the heating element 20 shown in fig. 5 in that the tip portion 232 of the heating element 20 in this embodiment is in a triangular plate shape, and the support portion 231 is in a rectangular plate shape.

In other embodiments, the shapes of the tip 232 and the support 231 may be selected according to actual needs, for example, the tip 232 may also be diamond-shaped or other irregular shapes, as long as the insertion resistance can be reduced during the insertion of the heating assembly 20 into the aerosol-generating substrate 10, and is not limited herein.

In some embodiments, the heating assembly 20 further includes a mounting seat (not shown) fixedly connected to the heating assembly 20, so that the heating assembly 20 is mounted in the housing 101 through the mounting seat. Specifically, the material of the mounting seat can adopt organic or inorganic material with a melting point higher than 160 degrees. The heating element 20 may be fixed on the mounting base by a fixing structure or an adhesive, and the adhesive may be a high temperature resistant glue.

In the heating assembly 20 and the aerosol-forming device 100 provided by the present application, the heating assembly 20 includes the induction coil 21, the induction coil 21 is at least partially wound to form the spiral section 212, and both ends of the induction coil 21 are configured to be connected to the electric electrodes 211; wherein, in the energized state of the induction coil 21, the generated electromagnetic field and the induction coil 21 generate induction heating, and the induction coil 21 itself also generates joule heat, both of which are used to heat the aerosol-generating substrate 10 to generate aerosol. That is, the heating unit 20 provided in the present application serves as both an electromagnetic field generating element and an induction heating element, and compared to a conventional heating unit structure of an induction coil and an inductor, the volume of the heating unit 20 is reduced, and the volume of the aerosol-forming device 100 to which the heating unit 20 is applied can be further reduced.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, 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 are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (12)

1. A heating assembly for generating an aerosol, comprising:

the induction coil is at least partially wound to form a spiral section, and two ends of the induction coil are both configured to be connected with an electric electrode;

wherein, under the condition of electrifying, the induction coil generates electromagnetic field and generates induction heating with the induction coil, and the induction coil generates joule heat to heat the aerosol generating substrate to generate aerosol.

2. The heating assembly of claim 1,

two ends of the induction coil are bent outwards to form the power connection electrodes, and the two power connection electrodes are respectively positioned at two ends of the spiral section.

3. A heating assembly as claimed in claim 2, wherein the spiral section defines a cavity for receiving at least a portion of the aerosol-generating substrate.

4. The heating assembly of claim 1, further comprising:

the base body comprises a supporting part and a tip part arranged at one end of the supporting part, and one part of the induction coil is arranged along the periphery of the supporting part in a winding manner and forms the spiral section;

wherein the tip is for breaking open the aerosol-generating substrate such that the heating assembly is inserted within the aerosol-generating substrate.

5. The heating assembly of claim 4,

the two power connection electrodes extend out of the supporting part from one end, far away from the tip part, of the supporting part.

6. The heating assembly of claim 5, wherein the supporting portion has a groove extending from an end of the supporting portion near the tip portion to an end of the supporting portion far away from the tip portion, one of the power connection electrodes is located at the end of the supporting portion far away from the tip portion, and the other power connection electrode is disposed in the groove and extends out of the supporting portion along the groove.

7. The heating assembly of claim 5, wherein one of the electrically connected electrodes is located at an end of the supporting portion away from the tip portion, and the other electrically connected electrode is embedded in the supporting portion and extends out of the supporting portion from an end of the supporting portion away from the tip portion.

8. The heating assembly of claim 4,

in the direction of the tip towards the support, the projection of the tip completely covers the projection of the support and the helical section.

9. The heating assembly of claim 8, wherein the tip is conical, and the support is cylindrical and is located on a bottom surface of the tip; or

The point portion is in a triangular sheet shape, the supporting portion is in a rectangular sheet shape, and the supporting portion is located on the bottom edge of the point portion.

10. The heating assembly of claim 1,

the induction coil is made of a ferromagnetic material, or a metal material in which a ferromagnetic material and a non-ferromagnetic material are mixed.

11. The heating assembly of claim 4,

the material of the substrate comprises insulating ceramic or glass.

12. An aerosol-forming device, comprising:

a heating assembly as claimed in any one of claims 1 to 11;

and the power supply component is electrically connected with the heating component and supplies power to the heating component.

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