CN218551335U

CN218551335U - Heating element and electronic atomization device

Info

Publication number: CN218551335U
Application number: CN202222428741.2U
Authority: CN
Inventors: 颜日欢; 沈友立; 丁晗晖
Original assignee: Shenzhen ALD Technology Co Ltd
Current assignee: Shenzhen ALD Technology Co Ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-03-03
Anticipated expiration: 2032-09-13

Abstract

The utility model provides a heating element and an electronic atomization device, wherein the heating element comprises a heating element, the heating element is provided with a heating cavity for accommodating aerosol generating products, and the heating element is provided with a first heat conduction area, a heating area and a second heat conduction area which are distributed in sequence along the axial direction; and in the axial direction, the length of the first heat-conducting area and the length of the second heat-conducting area are both smaller than the length of the heating area, and the length of the first heat-conducting area is different from the length of the second heat-conducting area. Because the length of the first heat conduction area is different from that of the second heat conduction area, the heating body adopts an asymmetric design, compared with the heating body in the prior art which adopts a symmetric sectional design, the heating body in the scheme does not adopt sectional heating, thereby not only reducing the production difficulty and the manufacturing cost of the heating body, but also reducing the requirement on the control capability of electrons; meanwhile, the heating speed and the aerosol generation amount in the preheating stage can be ensured.

Description

Heating element and electronic atomization device

Technical Field

The utility model relates to a low temperature non-combustion heating device technical field especially relates to a heat-generating body and electron atomizing device.

Background

For a heating element adopting circumferential heating, the heating element is generally designed in a symmetrical heating mode, but the heating element has the problems of slow temperature rise and small aerosol generation amount of the front two ports because the heating tube is longer and has large resistance and has higher requirement on the load capacity of a PCBA (printed circuit board assembly).

In the related art, a design of a heating tube with sectional heating can be adopted, namely the heating tube is heated separately by an upper section and a lower section (or three sections), the upper section is heated firstly during preheating, and the lower section is heated after a period of time, so that the aims of increasing power and rapidly generating aerosol are fulfilled. However, due to the sectional structure design of the heating body, the manufacturing process of the heating body is high, the requirement on the electronic control capability is higher, the temperature is corrected in a sectional manner in the later-stage production, and the production difficulty and the manufacturing cost are greatly improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a heat-generating body and electron atomizing device is provided, aim at solving the production degree of difficulty and the higher problem of cost of manufacture of heat-generating body in the correlation technique.

In order to solve the above technical problem, the first aspect of the present invention provides a heating element for heating an aerosol-generating article to generate aerosol, the heating element includes:

a heating element having a heating cavity for receiving the aerosol-generating article, the heating element having a first heat transfer area, a heating area and a second heat transfer area distributed axially in sequence;

wherein, in the axial direction, the length of the first heat transfer area and the length of the second heat transfer area are both smaller than the length of the heating area, and the length of the first heat transfer area is different from the length of the second heat transfer area.

Preferably, the length of the first heat transfer area is less than the length of the second heat transfer area in the axial direction.

Preferably, the heating element has an insertion opening communicating with the heating chamber, and the first heat conduction area or the second heat conduction area is located at an end of the heating element where the insertion opening is located.

Preferably, the heating element is a conductive ceramic; or the heating element comprises a heat-conducting base body and a conductive coating coated on the peripheral surface of the heat-conducting base body, and the conductive coating forms the heating area.

Preferably, the ratio, in the axial direction, between the length of the first heat transfer area, the length of the heating area and the length of the second heat transfer area is 1.

Preferably, the heating body further includes an electrode group fixed to the periphery of the heating element and disposed between two ends of the heating element, and the electrode group forms the heating region on the heating element after being energized.

Preferably, the electrode group includes a first electrode and a second electrode fixed to the heating element and disposed at an interval in an axial direction, the first heat conduction region is located between the first electrode and one end surface of the heating element, the heating region is located between the first electrode and the second electrode, and the second heat conduction region is located between the second electrode and the other end surface of the heating element.

Preferably, the first electrode and the second electrode are distributed on two opposite sides of the heating element; or both the first electrode and the second electrode are annular electrodes.

Preferably, the heating element further includes a first lead fixed to the first electrode, and a second lead fixed to the second electrode, the first lead being drawn from the first heat conduction area, and the second lead being drawn from the second heat conduction area.

The utility model discloses the second aspect provides an electron atomizing device, include as above arbitrary the heat-generating body.

The utility model discloses in a heat-generating body and electronic atomization device compare with prior art, beneficial effect lies in: because the length of the first heat conduction area is different from that of the second heat conduction area, the heating body adopts an asymmetric design, compared with the heating body in the prior art which adopts a symmetric sectional design, the heating body in the scheme does not adopt sectional heating, thereby not only reducing the production difficulty and the manufacturing cost of the heating body, but also reducing the requirement on the control capability of electrons; meanwhile, the length of the heating zone in the scheme is smaller than that of the heating zone in the prior art, namely the resistance of the heating zone in the scheme is smaller than that of the heating zone in the prior art, so that the output power corresponding to the heating zone in the scheme is larger, the heating of the heating body is faster, and the heating speed and the aerosol generation amount in the preheating stage can be ensured.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced, it is obvious that the drawings in the description below are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the entire structure of a heat generating body according to an embodiment of the present invention;

FIG. 2 is a front view of a heating element according to an embodiment of the present invention;

FIG. 3 is a schematic view showing an assembly of a heating element and an aerosol-generating product according to the present invention.

In the drawings, each reference numeral denotes: 1. a heating element; 11. a heating cavity; 2. a first heat transfer area; 3. a heating zone; 4. a second heat transfer area; 5. an electrode group; 51. a first electrode; 52. a second electrode; 6. a first lead; 7. a second lead; 10. a heating element; 20. an aerosol-generating article; 201. a matrix segment.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

The embodiment is as follows:

referring to fig. 1, 2 and 3, an embodiment of the present invention provides an electronic atomization device, which includes a heating element 10, where the heating element 10 is used to heat an aerosol-generating product 20 to generate aerosol, the heating element 10 includes a heating element 1, the heating element 1 has a heating cavity 11 for accommodating the aerosol-generating product 20, and the heating element 1 has a first heat conduction area 2, a heating area 3 and a second heat conduction area 4 that are sequentially distributed along an axial direction; wherein, along the axial direction, the length of the first heat transfer area 2 and the length of the second heat transfer area 4 are both smaller than the length of the heating area 3, and the length of the first heat transfer area 2 is different from the length of the second heat transfer area 4.

It should be understood that, because the length of the first heat conduction area 2 is different from the length of the second heat conduction area 4, the heating element 10 adopts an asymmetric design, and compared with the heating element 10 in the prior art adopting a symmetric sectional design, the heating element 10 in the scheme does not adopt sectional heating, so that the production difficulty and the manufacturing cost of the heating element 10 can be reduced, and the requirement on the electronic control capability can also be reduced; meanwhile, the length of the heating zone 3 in the scheme is smaller than that of the heating zone 3 in the prior art, namely, the resistance of the heating zone 3 in the scheme is smaller than that of the heating zone 3 in the prior art, so that the output power corresponding to the heating zone 3 in the scheme is larger, the heating of the heating body 10 is faster, and the heating speed and the aerosol generation amount in the preheating stage can be ensured.

As shown in the figure, further, the length of the first heat transfer area 2 is smaller than that of the second heat transfer area 4 in the axial direction, so that the heat generating body 10 is asymmetrically designed. It should be understood that in the preheating stage, the output energy is concentrated in the heating zone 3, so that the heating zone 3 can be rapidly heated, thereby increasing the generation amount of the aerosol in the first two ports; in the thermostating phase, the temperature of the heating zone 3 may be conducted to the first and second

heat transfer zones

2, 4 until it is at the same temperature as the heating zone 3, so that heating of the substrate segments 201 of the entire aerosol-generating article 20 to generate an aerosol may be achieved. According to actual needs, the length of the first heat conduction area 2 can be set to be larger than that of the second heat conduction area 4, so that the heating body 10 is in an asymmetric design.

As shown in the figures, in some embodiments, the heating element 1 has an insertion opening communicating with the heating chamber 11, and the first heat conduction area 2 or the second heat conduction area 4 is located at an end of the heating element 1 where the insertion opening is provided. Specifically, heating element 1 is the tube-shape, and the both ends opening setting of heating element 1 is in order to form heating chamber 11, and the opening of one end wherein is the inserted hole, and first heat conduction area 2 is located the one end that heating element 1 was equipped with the inserted hole, and the substrate section 201 of aerosol generation goods 20 inserts in heating chamber 11 from first heat conduction area 2 promptly to pass heating zone 3 and stretch into in the second heat conduction area 4, so that the aerosol that heating zone 3 heating aerosol generation goods formed can be quick by the suction, reduce the atomizing suction resistance of preheating stage, further accelerate out the fog volume. According to actual needs, the second heat conduction area 4 can also be arranged at one end of the heating element 1, which is provided with the insertion opening; the heating element 1 is open at one end and closed at the other end to form a heating cavity 11.

In some embodiments, the heating element 1 is a conductive ceramic; or the heating element 1 comprises a heat-conducting substrate and a conductive coating coated on the outer peripheral surface of the heat-conducting substrate, and the conductive coating forms a heating area 3. Of these, preferably electrically conductive ceramics, which have high heat conducting properties, so that the temperature of the heating zone 3 can be conducted quickly to the first and second

heat conducting areas

2, 4. The heating element 1 can also be made of other conductive heating materials according to actual needs.

In one embodiment, the ratio between the length of the first heat transfer area 2, the length of the heating area 3 and the length of the second heat transfer area 4 in axial direction is 1. Illustratively, the length of the first heat transfer area 2 may be 1.5mm, the length of the heating area 3 may be 12mm, and the length of the second heat transfer area 4 may be 6mm.

As shown in the figure, the heating element 10 further includes an electrode group 5 fixed to the circumferential side of the heating element 1 and disposed between both ends of the heating element 1, and the electrode group 5 is energized to form a heating region 3 on the heating element 1. Specifically, compare with 3 length of the zone of heating among the prior art, 3 length of the zone of heating in this scheme are shorter, according to resistance calculation formula:

R＝ρL/S；

wherein rho is the resistivity of the resistor, L is the length of the resistor, and S is the sectional area of the resistor; it can be known that the resistance of the heating area 3 in this embodiment is smaller than that of the heating area 3 in the prior art, and the formula is calculated according to the output power:

P＝(U2)/R；

wherein, P is output power, U is supply voltage, and R is resistance; it can be known that the smaller the resistance is, the larger the output power is, so that the output power of the heating area 3 in the present embodiment is larger than the output power of the heating area 3 in the prior art, and thus the heating area 3 of the heating element 10 in the present embodiment is heated more quickly. Furthermore, considering that the shorter the length of the heating zone 3, the less it will heat the aerosol-generating article 20, the length L1 of the first heat transfer area 2 is designed to be less than the length L3 of the second heat transfer area 4, and the length L3 of the second heat transfer area 4 is designed to be less than the length L2 of the heating zone 3, i.e. L1 < L3 < L2, while satisfying the requirements of the heating rate and the aerosol generation amount of the heating zone 3 during the preheating phase.

As shown in the drawing, in one embodiment, the electrode group 5 includes a first electrode 51 and a second electrode 52 fixed to the heat generating element 1 and arranged at an interval in the axial direction, the first heat conduction region 2 is located between the first electrode 51 and one end face of the heat generating element 1, the heating region 3 is located between the first electrode 51 and the second electrode 52, and the second heat conduction region 4 is located between the second electrode 52 and the other end face of the heat generating element 1. Specifically, the first electrode 51 and the second electrode 52 are welded and fixed on the outer side of the heating element 1, the first electrode 51 and the second electrode 52 are positive and negative electrodes of the heating area 3, the heating element 1 is divided into the first heat conduction area 2, the heating area 3 and the second heat conduction area 4 by the first electrode 51 and the second electrode 52, the length L1 of the first heat conduction area 2 is smaller than the length L3 of the second heat conduction area 4, and the length L3 of the second heat conduction area 4 is smaller than the length L2 of the heating area 3. Meanwhile, as can be seen from the resistance calculation formula, the resistance of the heating region 3 can be adjusted by controlling the distance between the first electrode 51 and the end surface of the heating element 1 and the distance between the second electrode 52 and the heating element 1, that is, the resistance of the heating region 3 can be adjusted by adjusting the mounting positions of the first electrode 51 and the second electrode 52 during the mounting process, thereby facilitating the production and manufacturing of the heating body 10. It should be understood that the voltage only applies heating to both ends of the heat generating region when the heat generating body 10 is operated by the first electrode 51 and the second electrode 52, thereby achieving rapid temperature rise atomization in the preheating stage. According to actual requirements, the first electrode 51 and the second electrode 52 are distributed on two opposite sides of the heating element 1, or both the first electrode 51 and the second electrode 52 are annular electrodes, that is, the first electrode 51 and the second electrode 52 are sleeved and fixed on the peripheral side of the heating element 1.

As shown in the figure, the heating element 10 preferably further includes a first lead 6 fixed to the first electrode 51, and a second lead 7 fixed to the second electrode 52, the first lead 6 being drawn from the first heat conduction area 2, and the second lead 7 being drawn from the second heat conduction area 4. Specifically, the first lead 6 and the second lead 7 are both wires, and the first lead 6 and the second lead 7 respectively correspond to the anode and the cathode of the heating element 10, and the circuit interface of the heating element 10 is led out through the first lead 6 and the second lead 7, so that the heating element 10 is conveniently powered.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A heat-generating body for heating an aerosol-generating article to generate an aerosol, the heat-generating body comprising:

2. A heat-generating body as described in claim 1, wherein a length of said first heat-conducting area is smaller than a length of said second heat-conducting area in said axial direction.

3. A heat-generating body as described in claim 2, wherein said heat-generating element has an insertion opening communicating with said heating chamber, and said first heat conduction area or said second heat conduction area is located at an end of said heat-generating element where said insertion opening is provided.

4. A heat-generating body as described in claim 2, characterized in that the heat-generating element is an electrically conductive ceramic; or the heating element comprises a heat-conducting base body and a conductive coating coated on the peripheral surface of the heat-conducting base body, and the conductive coating forms the heating area.

5. A heat-generating body as described in claim 2, wherein a ratio in the axial direction between a length of the first heat-transfer area, a length of the heating area, and a length of the second heat-transfer area is 1.

6. A heat-generating body as described in claim 1, further comprising an electrode group fixed to a peripheral side of said heat-generating element and provided between both ends of said heat-generating element, said electrode group forming said heating region on said heat-generating element after being energized.

7. A heat-generating body as described in claim 6, wherein said electrode group includes a first electrode and a second electrode which are fixed to said heat-generating element and are arranged at an interval in an axial direction, said first heat conduction region is located between said first electrode and one end face of said heat-generating element, said heating region is located between said first electrode and said second electrode, and said second heat conduction region is located between said second electrode and the other end face of said heat-generating element.

8. A heat-generating body as described in claim 7, wherein said first electrode and said second electrode are distributed on opposite sides of said heat-generating element; or both the first electrode and the second electrode are ring electrodes.

9. A heat-generating body as described in claim 7, further comprising a first lead wire fixed to said first electrode, and a second lead wire fixed to said second electrode, said first lead wire being drawn from said first heat conduction area, said second lead wire being drawn from said second heat conduction area.

10. An electronic atomizing device characterized by comprising the heat-generating body as described in any one of claims 1 to 9.