Heating device and atomization equipment

Abstract

The utility model relates to the technical field of electronic atomization, in particular to a heating device and atomization equipment, the heating device comprises a heating body and a heat exchange body, and the heating body is used for generating heat; an accommodating cavity is formed in the heat exchange body and is used for accommodating an aerosol generating substrate; the heat exchange body is arranged in the heating body, a plurality of first air inlet channels are formed between the heat exchange body and the heating body, the first air inlet channels are used for allowing airflow to pass through the heating body, and the heating body is used for heating the airflow flowing through the heating body; the heat exchange body is provided with a second air inlet channel, and the first air inlet channel is communicated with the containing cavity through the second air inlet channel. As the aerosol generating substrate is arranged in the heat exchange body, the aerosol generating substrate is prevented from being in direct contact with the heat source part, so that the aerosol generating substrate is prevented from being excessively heated to generate offensive odor due to too high temperature, the purity of aerosol is favorably improved, and the use taste of a user is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization, and more particularly to a heating device and an atomization equipment. BACKGROUND

[0002] The atomization equipment can use the heat effect of an electronic heating element to bake and heat an aerosol generating substrate, so that the aerosol generating substrate can generate aerosol and other volatile substances without burning. The atomization equipment in the prior art has the problem that the heating element is too close to the aerosol generating substrate, causing the temperature at the contact position to be too high, which leads to excessive heating of the aerosol generating substrate and the generation of impurities, affecting the purity of the aerosol and the user's experience. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a heating device and an atomization equipment, which can improve the purity of the aerosol and enhance the user's experience.

[0004] The present application provides a heating device, comprising:

[0005] a heating body for generating heat; and

[0006] a heat exchange body, the heat exchange body is provided with a containing cavity for containing an aerosol generating substrate; the heat exchange body is arranged inside the heating body, a plurality of first air inlet channels are formed between the heat exchange body and the heating body, the first air inlet channels are used for air flow passing through the heating body, and the heating body is used for heating the air flow; the heat exchange body is provided with a second air inlet channel, and the first air inlet channels are communicated with the containing cavity through the second air inlet channel.

[0007] In some optional embodiments, the heat exchange body comprises a heat exchange base and a plurality of heat exchange fins, the containing cavity is formed in the heat exchange base, one end of each of the plurality of heat exchange fins is arranged along the circumference of the heat exchange base at intervals, and the other end abuts against the inner wall of the heating body, and one first air inlet channel is formed between adjacent two heat exchange fins and the heating body and the heat exchange base.

[0008] In some optional embodiments, the heat exchange base comprises a side wall and a bottom wall, the side wall and the bottom wall enclose the containing cavity, a support portion is arranged on the bottom wall or the side wall, the support portion is used for supporting the aerosol generating substrate, a third air inlet channel is arranged on the support portion, and the third air inlet channel is used for communicating the second air inlet channel and the containing cavity.

[0009] In some optional embodiments, the support portion comprises a plurality of support protrusions arranged in a ring array around the center of the bottom wall, and adjacent two support protrusions are arranged at intervals to form the third air inlet channel.

[0010] In some optional embodiments, the support protrusion comprises a first portion and a second portion, the first portion and the second portion are sequentially and continuously arranged along the edge of the bottom wall in a direction towards the center; along the axial direction of the heating body, the first portion has a greater extension length than the second portion, so as to form a limiting step between the first portion and the second portion, the first portion is used for supporting the aerosol generating substrate, and the limiting step is used for fixing the aerosol generating substrate in the radial direction.

[0011] In some optional embodiments, a plurality of through holes are arranged on the side wall to form the second air inlet channel, and at least part of the through holes are arranged at intervals along the circumference of the side wall.

[0012] In some optional embodiments, each of the first air inlet channels is provided with at least one through hole.

[0013] In some optional embodiments, the first air inlet channel is a straight-through structure extending along the axial direction of the heating body.

[0014] In some optional embodiments, the heating device further comprises a sealing member arranged at one end of the heat exchange body opposite to the bottom wall.

[0015] The present application provides an atomization device, which comprises a shell assembly, a power supply assembly and a heating device as described above, the shell assembly is used for accommodating the power supply assembly and the heating device, and the power supply assembly supplies power to the heating device.

[0016] According to the embodiment, the heating body and the heat exchange body are included, the heat exchange body is arranged inside the heating body, the heating body mainly serves as a heat source component, the heat exchange body serves as a heat exchange component, the heat exchange body is provided with a containing cavity for containing the aerosol generating substrate, a plurality of first air inlet channels are formed between the heat exchange body and the heating body, the first air inlet channels are used for air flow passing through the heating body, the heating body is used for heating the air flow, the heat exchange body is provided with a second air inlet channel, and the first air inlet channels are communicated with the containing cavity through the second air inlet channel. Since the aerosol generating substrate is arranged in the heat exchange body, direct contact between the aerosol generating substrate and the heat source component is avoided, so that the aerosol generating substrate is not excessively heated due to excessively high temperature to generate impurities or harmful substances, which is beneficial to improve the purity of the aerosol and improve the use taste of the user. Since the aerosol generating substrate is arranged in the containing cavity, hot air flows into the aerosol generating substrate after passing through the second air inlet channel and the containing cavity. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic diagram of a heating device in an embodiment;

[0018] Figure 2 is an exploded view of the structure of the heating device in an embodiment;

[0019] Figure 3 is a sectional view of the structure of the heating device in an embodiment;

[0020] Figure 4 is a schematic view of the air flow circulation of the heating device in an embodiment;

[0021] Figure 5 is a schematic view of the structure of the heat exchange body in an embodiment;

[0022] Figure 6 is a sectional view of the structure of the heat exchange body in an embodiment;

[0023] Figure 7 is a sectional view of the structure of the atomization device in an embodiment.

[0024] Wherein: 1, heating device; 11, heating body; 12, heat exchange body; 121, heat exchange base; 1211, side wall; 1212, bottom wall; 1213, support part; 1214, support protrusion; 1215, first part; 1216, second part; 1217, limiting step; 1218, through hole; 122, heat exchange fin; 123, accommodating cavity; 13, first air inlet channel; 14, second air inlet channel; 15, third air inlet channel; 16, air flow space; 17, sealing element; 171, mounting hole; 2, shell assembly; 3, power supply assembly; A, aerosol generating substrate; X, insertion direction. DETAILED DESCRIPTION

[0025] The application will be described in further detail below with specific embodiments and with reference to the drawings. In different embodiments, similar elements are denoted by associated similar element reference numbers. In the following embodiments, many details are described in order to make the application better understood. However, a person skilled in the art can easily recognize that some features can be omitted in different cases, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the application are not shown or described in the specification in order to avoid the core of the application being overwhelmed by too much description, and it is not necessary to describe these related operations in detail for a person skilled in the art based on the description in the specification and general technical knowledge in the art.

[0026] In addition, features described in the specification, operation or characteristics can be combined in any suitable manner in various embodiments, and the steps involved in each embodiment can be sequentially adjusted or adjusted in a manner that can be easily seen by those skilled in the art. Therefore, the description and drawings are only for the purpose of clearly describing one embodiment, and do not mean the necessary composition and / or order.

[0027] The serial numbers of the components described herein, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequential or technical meaning. The "connection" and "coupling" in the present application include direct and indirect connections (couplings) unless otherwise specified.

[0028] The present application provides an atomization device which can heat the aerosol generating substrate A to form an aerosol using the principle of heating without combustion, for the user to use. Specifically, the atomization device uses a bottom hot air heating method to bake and heat the aerosol generating substrate A, so that the aerosol generating substrate A releases volatile aerosol without combustion.

[0029] It should be noted that the term aerosol refers to a dispersion of solid or liquid particles in a gas. As used herein, "aerosol" can be used to refer to a substance that has been vaporized, atomized, in the form of a spray or jet, or otherwise converted from a solid or liquid form to an inhalable form comprising suspended solid or liquid drug particles.

[0030] As used herein, the term "aerosol generating substrate A" refers to any suitable compound or mixture of compounds that facilitate aerosol formation in use, for example, stable aerosols that substantially resist thermal degradation at the operating temperature of the system. Suitable aerosol generating substrates A are well known in the art and include, but are not limited to: polyhydric alcohols such as triethylene glycol, 1,3-butanediol and glycerol; esters of polyhydric alcohols such as glycerol mono-, di- or triacetate; and aliphatic esters of mono-, di- or poly-carboxylic acids such as dimethyl dodecanedioate and dimethyl tetradecanedioate. The aerosol generating substrate A can include nicotine. The aerosol generating substrate A can include water. The aerosol generating substrate A can include glycerol (also known as glycerin), which has a higher boiling point than nicotine. The aerosol generating substrate A can include propylene glycol. The aerosol generating substrate A can include plant-based material. The aerosol generating substrate A can include homogenized plant-based material. The homogenized plant-based material can contain volatile compounds. These compounds can be released from the aerosol generating substrate A upon heating.

[0031] Please refer to Figures 1 to 7The application provides an atomization device, which comprises a shell assembly 2, a power supply assembly 3 and a heating device 1. The shell assembly 2 can be selected according to the specific structure of the atomization device. The shell assembly 2 can be understood as an assembly built by at least one component, which has multiple spaces with different functions inside. The multiple spaces can accommodate the power supply assembly 3 and the heating device 1, etc. In specific implementation, the space accommodating the power supply assembly 3 can be arranged below or beside the space accommodating the heating device 1. The two spaces can be in communication or isolated from each other. The arrangement of the shell assembly 2 can also protect the power supply assembly 3 and the heating device 1, and facilitate the carrying and transportation of the atomization device.

[0032] The power supply assembly 3 and the heating device 1 are electrically connected, and the power supply assembly 3 can supply power to the heating device 1. The power supply assembly 3 comprises a control panel (not shown in the figure) and a battery (not shown in the figure) which are electrically connected to each other. The battery supplies power to the electronic elements in the entire atomization device. The control panel can control the electronic elements to be turned on or off, or adjust the working power of the electronic elements. For example, the power supply assembly 3 can adjust the working temperature and / or power of the heating device 1.

[0033] When the atomization device works, based on the Bernoulli negative pressure principle, external air enters the heating device 1 and is heated by the heating device 1 to form a hot air flow. The hot air flow enters the inside of the aerosol generating substrate A, and can form an aerosol.

[0034] The shell assembly 2 and the power supply assembly 3 are prior art, and are not the focus of the protection scheme of the application. Therefore, they will not be described in detail here. The heating device 1 will be described in detail below.

[0035] Based on the existing bottom hot air flow heating method, the packaging paper of the aerosol generating substrate A is directly in contact with the heating source and is easy to be burnt and produce paper taste and burnt taste, which affects the purity of the aerosol and the smoking taste of the user. The application creatively improves the structure of the heating device 1 to solve the problem that the aerosol generating substrate A and its packaging paper are affected by the excessively high temperature and affect the purity of the aerosol and the taste.

[0036] Please refer to Figures 1 to 6 The heating device 1 provided by the application comprises a heating body 11 and a heat exchange body 12. The heat exchange body 12 is arranged inside the heating body 11. The heating body 11 is used for generating heat and mainly serves as a heat source component. The heat exchange body 12 serves as a heat exchange component. The heat exchange body 12 can cooperate with the heating body 11 to heat the airflow flowing therethrough to form a hot air flow. The hot air flow flows into the inside of the aerosol generating substrate A and is finally heated to form an aerosol.

[0037] The heat exchange body 12 is provided with a containing cavity 123 for containing the aerosol generating substrate A, so that the heat exchange body 12 is arranged between the aerosol generating substrate A and the heating body 11, avoiding direct contact between the aerosol generating substrate A and the heat source component, thereby avoiding excessive heating of the aerosol generating substrate A due to excessively high temperature to generate impurities or harmful substances, especially avoiding the packaging paper of the aerosol generating substrate A from being blackened or combusted to produce paper smell and paste smell when the temperature is too high, which is beneficial to improve the purity of the aerosol and improve the user's use taste.

[0038] A plurality of first air inlet channels 13 are formed between the heat exchange body 12 and the heating body 11, the first air inlet channels 13 are used for air flow passing through the heating body 11, the heating body 11 is used for heating the air flow passing through, and the second air inlet channel 14 is arranged on the heat exchange body 12. The first air inlet channel 13 communicates with the containing cavity 123 through the second air inlet channel 14. Since the aerosol generating substrate A is arranged in the containing cavity 123, based on the above arrangement, the external air can form a hot air flow and then enter the inside of the aerosol generating substrate A after passing through the second air inlet channel 14 and the containing cavity 123, and the aerosol generating substrate A is heated in a bottom hot air flow manner. The flow diagram of the air flow is shown in Figure 3 and 4 .

[0039] Please refer to Figure 2 、 Figure 3 and Figure 5 , the heat exchange body 12 includes a heat exchange base 121 and a plurality of heat exchange fins 122, the containing cavity 123 is formed in the heat exchange base 121, one end of the plurality of heat exchange fins 122 is arranged along the circumference of the heat exchange base 121, and the other end abuts against the inner wall of the heating body 11, so that the adjacent two heat exchange fins 122 form a first air inlet channel 13 between the heating body 11 and the heat exchange base 121. The plurality of heat exchange fins 122 are arranged, so that a plurality of first air inlet channels 13 are formed.

[0040] In some embodiments, the plurality of heat exchange fins 122 are uniformly arranged, so that the plurality of first air inlet channels 13 are uniformly arranged along the circumference of the heat exchange base 121, that is, so that the air flow can uniformly enter the containing cavity 123 and enter the aerosol generating substrate A, thereby helping to uniformly heat the aerosol generating substrate A, avoiding excessive heating of part of the aerosol generating substrate A and insufficient heating of another part, thereby avoiding the problems of poor taste of the aerosol and waste of materials.

[0041] In some embodiments, the first air inlet channel 13 is a straight-through structure extending along the axial direction of the heating body 11. The heating body 11 and the heat exchange body 12 are coaxially arranged. In terms of a single heat exchange fin 122, it is arranged to extend along the axial direction of the heating body 11 (which can also be understood as the heat exchange base 121). Therefore, the first air inlet channel 13 formed is a straight-through structure, which can effectively ensure smooth flow of the airflow, thereby shortening the time for the hot airflow to enter the aerosol generating substrate A and improving the aerosol generating speed.

[0042] In other embodiments, the first air inlet channel 13 can be a non-straight-through structure, for example, a spiral structure, etc. In this embodiment, the non-straight-through structure design can increase the heat exchange area, but correspondingly, the airflow velocity and the aerosol generating speed can be reduced.

[0043] Please refer to Figure 5 In some embodiments, the heat exchange base 121 includes a side wall 1211 and a bottom wall 1212. The side wall 1211 and the bottom wall 1212 enclose a receiving cavity 123. The bottom wall 1212 or the side wall 1211 is provided with a support portion 1213 for supporting the aerosol generating substrate A. The support portion 1213 is provided with a third air inlet channel 15 for communicating the second air inlet channel 14 and the receiving cavity 123. Based on the arrangement of the support portion 1213, the position of the aerosol generating substrate A along the insertion direction X (which can be understood as the axial direction of the receiving cavity 123 and the axial direction of the heating body 11 and the heat exchange body 12) can be limited. In addition, the end portion of the aerosol generating substrate A and the bottom wall 1212 can have an airflow space 16 therebetween. The formation of the airflow space 16 allows the hot airflow to enter the interior of the aerosol generating substrate A along the end portion thereof. The side wall 1211 and the bottom wall 1212 can be a detachable structure. Of course, in order to facilitate assembly, the side wall 1211 and the bottom wall 1212 can also be an integrally formed structure. Specifically, the edge of the bottom wall 1212 can also exceed the edge of the orthographic projection of the heat exchange fin 122 and the heat exchange base 121 thereon. When assembled, part of the structure of the bottom wall 1212 can abut against the end portion of the heating body 11 to limit and fix the heating body 11.

[0044] Please refer to Figure 5 and Figure 6The support portion 1213 includes a plurality of support protrusions 1214 arranged in a ring array along the center of the bottom wall 1212, and two adjacent support protrusions 1214 are spaced apart to form a third air inlet channel 15. The third air inlet channel 15 is formed in communication with the airflow space 16 and the second air inlet channel 14. The support portion 1213 is arranged in a ring array, so that the third air inlet channel 15 extends along the direction from the edge of the bottom wall 1212 to the center, so that the airflow from one space to another space is formed in a straight-through manner, reducing the resistance of the airflow flow. The arrangement of the third air inlet channel 15 can also guide the airflow to change the flow direction, so that it enters the inside of the aerosol generating substrate A from the end thereof, realizes heating of the bottom hot airflow of the aerosol generating substrate A, and thereby provides heating efficiency of the atomization device.

[0045] Please refer to Figure 6 The support protrusion 1214 includes a first portion 1215 and a second portion 1216, which are sequentially and continuously arranged along the direction from the edge to the center of the bottom wall 1212, along the axial direction of the heating body 11, and the extension length of the first portion 1215 is greater than that of the second portion 1216. Based on the arrangement of the first portion 1215 and the second portion 1216, a step is formed between the first portion 1215 and the second portion 1216 due to the length difference, which serves as a limiting step 1217. After the aerosol generating article is loaded, the first portion 1215 is used to support the aerosol generating substrate A, and the side of the limiting step 1217 formed by the second portion 1216 abuts against the side wall 1211 of the aerosol generating substrate A. Based on this design, the limiting step 1217 can fix the aerosol generating substrate A along the radial direction thereof, thereby facilitating the centering (coaxial with the accommodation cavity 123) of the aerosol generating substrate A during installation, and helping to uniformly heat the aerosol generating substrate A.

[0046] Please refer to Figure 6 The side wall 1211 is provided with a plurality of through holes 1218 to form the second air inlet channel 14. At least part of the through holes 1218 are arranged along the circumference of the side wall 1211 to communicate the first air inlet channel 13 and the accommodation cavity 123 located on both sides of the side wall 1211, and part of the through holes 1218 can be sequentially arranged along the axial direction of the side wall 1211 to increase the flow capacity of the second air inlet channel 14 and enhance the airflow into the accommodation cavity 123. In order to reduce the flow resistance of the airflow, the second air inlet channel 14 is a straight-through structure penetrating the side wall 1211 of the heat exchange substrate 121 along the radial direction thereof. In this embodiment, a plurality of through holes 1218 can be uniformly arranged along the circumference of the side wall 1211, so that the airflow can flow uniformly.

[0047] For each first air inlet channel 13, at least one through hole 1218 is provided, so that the hot air flow in each first air inlet channel 13 can enter the accommodating cavity 123, thereby ensuring the uniformity of the air flow entering the aerosol generating substrate A. Of course, each first air inlet channel 13 can also be provided with two or more through holes 1218 to increase the air flow.

[0048] In order to enhance the heat utilization rate and avoid the influence of air flow turbulence on the heating efficiency, the heating device 1 further comprises a sealing member 17 provided at the end of the heat exchange body 121 opposite to the bottom wall 1212. The sealing member 17 can seal the heat exchange body 12, so that the hot air flow enters the accommodating cavity 123 and enters the aerosol generating substrate A. The provision of the sealing member 17 also forms a relatively closed air flow buffering space, and the hot air flow is gathered in the space, which can better heat the aerosol generating substrate A.

[0049] The sealing member 17 is provided with a mounting hole 171 for inserting the aerosol generating substrate A into the accommodating cavity 123. The mounting hole 171 can be in interference fit with the aerosol generating substrate A, so as to facilitate the installation and removal of the aerosol generating substrate A.

[0050] The above application of specific examples to illustrate the present application is only used to help understand the present application and does not limit the present application. For those skilled in the art to which the present application belongs, according to the idea of the present application, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A heating device, characterized in that, The heating device comprises: a heating body for generating heat; and a heat exchange body provided with a receiving cavity for accommodating an aerosol generating substrate; the heat exchange body is arranged inside the heating body, and a plurality of first air inlet channels are formed between the heat exchange body and the heating body for airflow to pass through the heating body, the heating body being used to heat the airflow; the heat exchange body is provided with a second air inlet channel, and the first air inlet channels communicate with the receiving cavity through the second air inlet channel.

2. The heating device of claim 1, wherein The heat exchange body comprises a heat exchange base and a plurality of heat exchange fins, the receiving cavity is formed in the heat exchange base, one end of each of the plurality of heat exchange fins is arranged along the circumference of the heat exchange base at intervals, and the other end abuts against the inner wall of the heating body; two adjacent heat exchange fins form a first air inlet channel between the heating body and the heat exchange base.

3. The heating device of claim 2, wherein, The heat exchange base comprises a side wall and a bottom wall, the side wall and the bottom wall enclose the receiving cavity, the bottom wall or the side wall is provided with a support portion for supporting the aerosol generating substrate, and the support portion is provided with a third air inlet channel for communicating the second air inlet channel and the receiving cavity.

4. The heating device of claim 3, wherein, The support portion comprises a plurality of support protrusions arranged in a ring array along the center of the bottom wall, and two adjacent support protrusions are arranged at intervals to form the third air inlet channel.

5. The heating device of claim 4, wherein, The support protrusion comprises a first portion and a second portion, the first portion and the second portion are sequentially and continuously arranged along the center of the edge of the bottom wall; in the axial direction of the heating body, the extension length of the first portion is greater than that of the second portion, so as to form a limiting step between the first portion and the second portion, the first portion is used to support the aerosol generating substrate, and the limiting step is used to fix the aerosol generating substrate in the radial direction.

6. The heating device of claim 3, wherein The side wall is provided with a plurality of through holes to form the second air inlet channel, and at least part of the through holes are arranged at intervals along the circumference of the side wall.

7. The heating device of claim 6, wherein, Each first air inlet channel is provided with at least one through hole.

8. The heating device according to any one of claims 1-7, characterized in that, The first air inlet channel is a straight-through structure extending in the axial direction of the heating body.

9. The heating device of claim 3, wherein, The heating device further comprises a sealing member arranged at one end of the heat exchange base opposite to the bottom wall.

10. An atomising device characterised in that, The heating device comprises a shell assembly, a power supply assembly and the heating device according to any one of claims 1-9, the shell assembly is used to accommodate the power supply assembly and the heating device, and the power supply assembly supplies power to the heating device.

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