A heating element assembly and aerosol forming device thereof

Abstract

The application discloses a heating body assembly and an aerosol forming device thereof, the heating body assembly is arranged on a mounting support of an aerosol product of the aerosol forming device, and the heating body assembly comprises a heating tube, a fixing seat and an electromagnetic coil. The heating tube is a tubular structure with a first end being blocked in an axial direction and a second end having an opening. The mounting support has a first cavity for inserting the aerosol product. The fixing seat is fixedly arranged on the mounting support and has an air passing channel. The second end of the heating tube is fixedly inserted into the air passing channel, and the first end of the heating tube extends into the first cavity. The first air passing hole is arranged on the heating tube and is communicated with the inside of the first cavity, and / or the second air passing hole is arranged on the fixing seat and is communicated with the inside of the first cavity. The heating of the fixed position at the bottom of the heating tube can be avoided, the temperature of the main machine is high, and the cold air flow can be better radiated after passing through the heating tube.

Description

Technical Field

[0001] This invention relates to the field of aerosol generation equipment technology, and in particular to a heating element assembly and its aerosol forming apparatus. Background Technology

[0002] "Heated-non-combustible" aerosol forming devices are atomization devices that atomize aerosol-generating substrate (such as treated plant leaf products) by heating it without causing the substrate to burn. These devices heat the substrate to a temperature sufficient to produce aerosols but not hot enough to burn, thus generating the desired aerosol for the user.

[0003] The heating element components of existing "heat-not-combustible" aerosol forming devices that use electromagnetic coils and heating elements for induction heating generally include a heating element, an electromagnetic coil, and a mounting base. The mounting base is fixedly mounted on the mounting bracket of the aerosol forming device. However, the current heating element and / or mounting base do not have corresponding cooling vents, which causes the heating temperature at the bottom of the heating element to be too high, resulting in poor heat dissipation of the main unit. Summary of the Invention

[0004] The purpose of this invention is to provide a heating element assembly and its aerosol forming device, which aims to solve the technical problem of poor heat dissipation of the host due to excessively high heating temperature at the bottom fixed position of the existing heating tube.

[0005] To address the aforementioned problems, according to one aspect of this application, an embodiment of the present invention provides a heating element assembly mounted on a mounting holder of an aerosol product in an aerosol forming apparatus. The heating element assembly includes a heating tube, a fixing seat, and an electromagnetic coil wound around the outside of the heating tube. The heating tube is a tubular structure with a first axial end sealed and a second end open. The mounting holder has a first cavity for inserting the aerosol product. The fixing seat is fixedly mounted on the mounting holder and has an air passage. The second end of the heating tube is fixedly inserted into the air passage, and the first end of the heating tube extends into the first cavity. The heating tube has a first air passage hole that allows the air passage to communicate with the interior of the first cavity; and / or, the fixing seat has a second air passage hole that allows the air passage to communicate with the interior of the first cavity.

[0006] In some embodiments, the first vent is located near the mounting base.

[0007] In some implementations, the first end of the heating element has a tapered structure.

[0008] In some embodiments, the heating element assembly further includes a temperature sensing element that extends into the interior of the heating tube through an opening at the second end of the heating tube.

[0009] In some embodiments, the temperature sensing element is positioned in the radial direction of the heating element opposite to the first or second vent.

[0010] In some implementations, the second vent extends in the radial direction of the heating element.

[0011] In some embodiments, when the side wall of the heating element is provided with a first vent hole and the fixing seat is provided with a second vent hole, the first vent hole is located inside the fixing seat, and the vent passage is connected to the inside of the first cavity in sequence through the first vent hole and the second vent hole.

[0012] According to another aspect of this application, embodiments of the present invention also provide an aerosol forming apparatus, the aerosol forming apparatus including a housing, a mounting bracket and a heating element assembly as described above, the mounting bracket being disposed at one end of the housing.

[0013] In some embodiments, when the heating element assembly includes a temperature sensing element, the housing contains a battery cell and a control board, with the control board connected to the battery cell, the electromagnetic coil, and the temperature sensing element, respectively.

[0014] In some embodiments, an air inlet is provided at the end of the housing away from the mounting bracket, and the air inlet is connected to the air passage.

[0015] Compared with the prior art, the heating element assembly of the present invention has at least the following beneficial effects:

[0016] This invention discloses a heating element assembly, which is disposed on an aerosol product holder of an aerosol forming device. The heating element assembly includes a heating tube and a fixing seat. The heating tube is a tubular structure with a first axial end sealed and a second end open. The mounting seat has a first cavity for inserting the aerosol product. In use, the aerosol product is inserted into the first cavity, and the heating tube heats the aerosol product to generate aerosol for the user to inhale. The fixing seat is fixedly disposed on the mounting seat and has an air passage. The second end of the heating tube is fixedly inserted into the air passage, and the fixing seat fixes the heating tube. The air passage of the fixing seat is connected to the opening of the second end of the heating tube, and the first end of the heating tube extends into the first cavity, allowing the heating tube to be inserted into the aerosol product when it is inserted into the first cavity. For better heating of aerosol products, this invention provides a first air passage hole in the heating tube that connects the air passage channel to the interior of the first cavity, allowing external cold air to be introduced into the interior of the first cavity through the air passage channel; and / or, a second air passage hole in the fixed base that connects the air passage channel to the interior of the first cavity, allowing external cold air to be introduced into the interior of the cavity through the air passage channel. Since the second end of the heating tube is a fixed end, the airflow process of the above two methods or combinations can quickly guide the high temperature of the second end of the heating tube to the first cavity through the cold air to heat the aerosol product. Therefore, it can avoid the situation where the main unit temperature is high due to heating at the fixed position at the bottom of the heating tube. After the cold airflow passes through the heating tube, it can dissipate heat better.

[0017] On the other hand, the aerosol forming apparatus provided by the present invention is designed based on the above-mentioned heating element assembly, and its beneficial effects are the same as those of the above-mentioned heating element assembly, which will not be repeated here.

[0018] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the assembly structure of the heating element assembly provided in the embodiment of the present invention when the fixing seat of the heating element assembly is provided with a second air vent.

[0021] Figure 2An exploded view of the heating element assembly provided in the embodiment of the present invention when the fixing seat of the heating element assembly is provided with a second vent hole;

[0022] Figure 3 A cross-sectional view of the heating element assembly provided in the embodiment of the present invention when the fixing seat of the heating element assembly is provided with a second air vent.

[0023] Figure 4 This is a schematic diagram of the structure of the heating element assembly provided in the embodiment of the present invention when the heating tube is provided with a first vent hole.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Heating element; 11. First vent hole; 2. Mounting base; 21. Vent passage; 22. Second vent hole; 3. Electromagnetic coil; 4. Temperature sensing element; 41. Third terminal; 42. Fourth terminal. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific embodiments, structures, features, and effects according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0027] In the description of this invention, it should be clearly stated that the terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "up," "down," "horizontal," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are merely for the convenience of describing this invention, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Example 1

[0030] like Figure 1-4As shown, this embodiment of the invention provides a heating element assembly, which is mounted on a mounting bracket of an aerosol product in an aerosol forming device. The heating element assembly includes a heating tube 1, a fixing seat 2, and an electromagnetic coil 3 wound around the outside of the heating tube 1. The heating tube 1 is a tubular structure with a first end sealed axially and an open second end. The mounting bracket has a first cavity for inserting the aerosol product. The fixing seat 2 is fixedly mounted on the mounting bracket and has an air passage 21. The second end of the heating tube 1 is fixedly inserted into the air passage 21, and the first end of the heating tube 1 extends into the first cavity. The heating tube 1 has a first air passage 11 that allows the air passage 21 to communicate with the interior of the first cavity; and / or, the fixing seat 2 has a second air passage 22 that allows the air passage 21 to communicate with the interior of the first cavity.

[0031] In this embodiment, the heating element assembly is applied to a "heated non-combustible" aerosol forming device that uses an electromagnetic coil and a heating tube for induction. Specifically, the heating element assembly is mounted on the mounting tray of the aerosol product in the aerosol forming device. The heating element assembly includes a heating tube 1, a fixing base 2, and an electromagnetic coil 3 wound around the outside of the heating tube 1. The fixing base 2 is made of high-temperature resistant insulating material. The heating tube 1 is a tubular structure with a first axial end sealed and a second end open. The mounting tray has a first cavity for inserting the aerosol product. In use, the aerosol product is inserted into the first cavity, and the electromagnetic coil 3 is energized to drive the heating tube 1 to heat the aerosol product and generate aerosol for the user to inhale. The fixing base 2 is fixedly mounted on the mounting tray. The fixing base 2 has an air passage 21. The second end of the heating tube 1 is fixedly inserted into the air passage 21. The fixing base 2 fixes the heating tube 1, and the air passage 21 of the fixing base 2 is connected to the opening of the second end of the heating tube 1. The first end of the heating tube 1 extends into the air passage 21. When the aerosol product is inserted into the first cavity, the heating tube 1 can be inserted into the aerosol product to better heat the aerosol product. The present invention provides a first air passage 11 in the heating tube 1, which connects the air passage 21 with the interior of the first cavity. Cold air from the outside can be introduced into the interior of the first cavity through the air passage 21 via the first air passage 11. And / or, a second air passage 22 is provided in the fixing seat 2, which connects the air passage 21 with the interior of the first cavity. Cold air from the outside can be introduced into the interior of the cavity through the air passage 21 via the second air passage 22. Since the second end of the heating tube 1 is a fixed end, the high temperature of the second end of the heating tube 1 can be quickly guided to the first cavity by the cold air during the airflow process of the above two methods or combinations, so as to heat the aerosol product. Therefore, it can avoid the situation where the main unit temperature is high due to the heating of the fixed position at the bottom of the heating tube 1. The cold airflow can dissipate heat better through the heating tube 1.

[0032] The number of first air vents 11 and second air vents 22 can be multiple, forming multiple cooling airflow channels to further improve the heat dissipation effect.

[0033] In some embodiments, the first vent 11 is located near the fixed base 2.

[0034] In this embodiment, by opening the first vent 11 near the fixed base 2, the airflow path can be close to the fixed base 2. The airflow carries away the heat from the second end of the heating tube 1, which can prevent the heating tube 1 from heating at the bottom fixed position and causing the host to have a high temperature. The cold airflow can dissipate heat better after passing through the heating tube 1.

[0035] In some embodiments, the first end of the heating tube 1 has a tapered structure.

[0036] In this embodiment, the first end of the heating tube 1 is designed with a tapered structure to facilitate the insertion of the aerosol product.

[0037] In some embodiments, the heating element assembly further includes a temperature sensing element 4, which extends into the interior of the heating tube 1 through an opening at the second end of the heating tube 1.

[0038] In this embodiment, by setting a temperature sensing element 4 inside the heating tube 1 and integrating the temperature sensing element 4 into the interior of the heating tube 1, the temperature measurement is more accurate and it is also easier to make data judgments.

[0039] In some embodiments, the temperature sensing element 4 is disposed in the radial direction of the heating tube 1 at a position opposite to the first vent 11 or the second vent 22.

[0040] In this embodiment, the temperature sensing element 4 can be set in the radial direction of the heating tube 1 at a position opposite to the first air passage 11 or the second air passage 22, which can detect the temperature of the airflow, making the temperature measurement more accurate and facilitating data judgment.

[0041] In some embodiments, the second vent 22 extends in the radial direction of the heating tube 1.

[0042] In this embodiment, by setting the second vent 22 as a channel extending in the radial direction of the heating tube 1, it is possible to prevent the matrix residue of the aerosol product from falling into the second vent 22 and blocking it.

[0043] In some embodiments, when the side wall of the heating tube 1 is provided with a first vent hole 11 and the fixing seat 2 is provided with a second vent hole 22, the first vent hole 11 is located inside the fixing seat 2, and the vent passage 21 is connected to the interior of the first cavity through the first vent hole 11 and the second vent hole 22 in sequence.

[0044] In this embodiment, when the side wall of the heating tube 1 is provided with a first vent hole 11 and the fixing seat 2 is provided with a second vent hole 22, the first vent hole 11 can be fixed to the outside of the fixing seat 2 or the inside of the fixing seat 2. When the first vent hole 11 can be fixed to the inside of the fixing seat 2, in order to form an airflow path, the first vent hole 11 and the second vent hole 22 can be connected. At this time, the air passage 21 can be connected to the inside of the first cavity in sequence through the first vent hole 11 and the second vent hole 22 to form a complete cooling airflow passage.

[0045] Example 2

[0046] This invention also provides an aerosol forming apparatus, which includes a housing, a mounting bracket, and the heating element assembly of Embodiment 1, with the mounting bracket disposed at one end of the housing.

[0047] Specifically, the aerosol forming apparatus of the present invention can be a "heated non-combustible" type aerosol forming apparatus that uses an electromagnetic coil and a heating tube for induction. The aerosol forming apparatus includes a shell, a mounting bracket, and the heating element assembly of Example 1. The mounting bracket is disposed at one end of the shell, and an opening is provided on the end of the mounting bracket away from the shell. The aerosol product is inserted into the mounting bracket through the opening.

[0048] In some embodiments, when the heating element assembly includes a temperature sensing element 4, the housing contains a battery cell and a control board. The control board is connected to the battery cell, the electromagnetic coil 3, and the temperature sensing element 4. The battery cell supplies power to the electromagnetic coil 3, which in turn drives the heating tube to heat the aerosol product. The control board obtains information from the temperature sensing element 4 and controls the electromagnetic coil 3 to control the working state of the heating tube 1.

[0049] The two ends of the electromagnetic coil 3 are connected to the control board through wires; the temperature measuring element 4 may have at least a third terminal 41 and a fourth terminal 42, and the third terminal 41 and the fourth terminal 42 of the temperature measuring element 4 are connected to the control board through wires.

[0050] In some embodiments, an air inlet is provided at the end of the housing away from the mounting bracket. The air inlet is connected to the air passage, and cold air can flow into the housing from the air inlet and then into the air passage.

[0051] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the devices, apparatuses, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0052] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A heating element assembly configured to be mounted on a mounting tray of an aerosol article of an aerosol forming device, characterized in that: The heating element assembly includes a heating tube (1), a fixing seat (2), and an electromagnetic coil (3) wound around the outside of the heating tube (1). The heating tube (1) is a tubular structure with a first end sealed and a second end open. The mounting bracket has a first cavity for inserting the aerosol product. The fixing seat (2) is fixedly mounted on the mounting bracket. The fixing seat (2) has an air passage (21). The second end of the heating tube (1) is fixedly inserted into the air passage (21). The first end of the heating tube (1) extends into the first cavity. The heating tube (1) has a first air hole (11) that allows the air passage (21) to communicate with the interior of the first cavity. And / or, the fixing seat (2) has a second air hole (22) that allows the air passage (21) to communicate with the interior of the first cavity. When the heating tube (1) has the first vent hole (11) on its side wall and the fixing seat (2) has the second vent hole (22), the first vent hole (11) is located inside the fixing seat (2), and the vent passage (21) communicates with the interior of the first cavity through the first vent hole (11) and the second vent hole (22) in sequence.

2. The heat generating body assembly according to claim 1, characterized by: The first vent (11) is located near the fixed seat (2).

3. The heat generating body assembly according to claim 1, characterized by: The first end of the heating tube (1) has a tapered structure.

4. The heating element assembly according to claim 1, characterized in that: The heating element assembly also includes a temperature measuring element (4), which extends into the interior of the heating tube (1) through an opening at the second end of the heating tube (1).

5. The heating element assembly according to claim 4, characterized in that: The temperature measuring element (4) is positioned on the heating tube (1) in the radial direction opposite to the first vent (11) or the second vent (22).

6. The heat generating body assembly according to claim 1, characterized by: The second vent (22) extends in the radial direction of the heating tube (1).

7. An aerosol forming apparatus, characterized in that: The aerosol forming apparatus includes a housing, a mounting bracket, and a heating element assembly as described in any one of claims 1-6, wherein the mounting bracket is disposed at one end of the housing.

8. An aerosol-forming device according to claim 7, characterised in that: When the heating element assembly includes a temperature measuring element (4), the inside of the housing is provided with a battery cell and a control board, and the control board is connected to the battery cell, the electromagnetic coil (3) and the temperature measuring element (4) respectively.

9. An aerosol-forming device according to claim 7, characterised in that: An air inlet is provided at the end of the outer shell away from the mounting bracket, and the air inlet is connected to the air passage (21).

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