Heating assembly and aerosol generating device

Abstract

The utility model relates to the technical field of aerosol generation, in particular to a heating assembly and an aerosol generation device.The heating assembly comprises a heating shell and a heating body fixedly connected with the heating shell, the heating shell extends in the first direction, and the heating shell is used for making contact with an aerosol generation substrate; the heating body comprises a plurality of heating sections which are staggered in the first direction; the heating body is provided with a first external connection end and a plurality of second external connection ends, the first external connection end is electrically connected with the heating sections, the number of the second external connection ends is equal to that of the heating sections, and the second external connection ends are electrically connected with the corresponding heating sections, so that different heating sections can be conveniently controlled to heat so as to heat different positions of the aerosol generating substrate; for example, the heating sections can be sequentially controlled to heat in the aerosol discharge direction so as to ensure the continuity of aerosol generation, and the aerosol generation matrix is prevented from generating burnt smell by controlling the heating duration of the heating sections, so that the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and particularly relates to a heating component and an aerosol generation device. Background Art

[0002] An aerosol generation device includes an atomization component. The atomization component has an atomization channel for inserting an aerosol generation matrix, and also has a heating component for heating the aerosol generation matrix to generate aerosol. The heating component can be in direct contact with the aerosol generation matrix to heat the aerosol generation matrix.

[0003] Generally, the heating component can only contact with a part of the aerosol product in the aerosol generation matrix; during the use of the aerosol generation device, the aerosol product in contact with the heating component can quickly generate aerosol, while the aerosol product not in contact with the heating component generates aerosol at a slower speed. On the one hand, this will cause the aerosol generation of the entire aerosol generation device to be discontinuous. On the other hand, the aerosol product in contact with the heating component is prone to generate a burnt smell during long-term heating, affecting the user experience. Utility Model Content

[0004] The present application provides a heating component and an aerosol generation device to solve the technical problems of discontinuous aerosol generation, easy generation of burnt smell of the aerosol product, and affecting the user experience.

[0005] According to a first aspect, in one embodiment, a heating component is provided, including:

[0006] A heating housing, extending and arranged in a first direction, the heating housing is used to contact with the aerosol generation matrix;

[0007] A heating element, fixedly connected to the heating housing, the heating element includes a plurality of heating segments arranged staggeredly in the first direction; the heating element has a first external connection end and a plurality of second external connection ends. The first external connection end is electrically connected to each of the heating segments, and the number of the plurality of second external connection ends is equal to the number of the plurality of heating segments. The second external connection end is electrically connected to the corresponding heating segment.

[0008] In an optional embodiment, the heating housing has an installation cavity extending in the first direction, and the heating element is fixedly installed in the installation cavity.

[0009] In an optional embodiment, the heating housing has an outer side surface facing away from the installation cavity in a direction perpendicular to the first direction, and the outer side surface contacts with the aerosol generation matrix.

[0010] In an alternative embodiment, the heating housing has a mounting section and a contact section arranged in the first direction, the mounting section being for fixedly connecting to a device body in an aerosol generating device, and the contact section being for contacting an aerosol generating substrate.

[0011] In an alternative embodiment, the contact section has an insertion end located at an end of the heating housing in the first direction, the insertion end being a tip for piercing into the aerosol generating substrate.

[0012] In an alternative embodiment, the heating section includes a heating wire, the heating wire winding to include a spiral structure, an axis of the spiral structure extending in the first direction.

[0013] In an alternative embodiment, each of the heating sections has a first end and a second end located at two ends in the first direction, a plurality of the first ends being connected to the first external connection end, and each of the second ends being connected to a corresponding second external connection end.

[0014] In an alternative embodiment, the heating section includes a spiral structure, an axis of the heating section extending in the first direction, and the first external connection end and a plurality of the second external connection ends all passing through from a radially inner side of the spiral structure.

[0015] In an alternative embodiment, the material of the heating housing includes a metallic material, and the heating element is encapsulated in the mounting cavity by a ceramic paste;

[0016] Or the material of the heating housing includes a ceramic material, and the heating element is fixed in the mounting cavity by means of a snap fit, a thread or an adhesive.

[0017] According to a second aspect, an embodiment provides an aerosol generating device, including a device body and the heating assembly according to any one of the above, the heating assembly being mounted on the device body, the device body having a receiving cavity for receiving an aerosol generating substrate, and the heating assembly being for contacting the aerosol generating substrate.

[0018] The heating component and the aerosol generating device according to the above embodiments, the heating component includes a heating housing and a heating element fixedly connected to the heating housing. The heating housing is arranged to extend in a first direction and is used to contact an aerosol generating substrate. The heating element includes a plurality of heating segments arranged staggeredly in the first direction. The heating element has a first external connection end and a plurality of second external connection ends. The first external connection end is electrically connected to each heating segment. The number of the plurality of second external connection ends is equal to the number of the plurality of heating segments. The second external connection end is electrically connected to the corresponding heating segment, so that the plurality of heating segments form a parallel structure, which is convenient to realize the heating of the aerosol generating substrate at different positions in the first direction by respectively controlling the different heating segments. For example, each heating segment can be controlled to heat in sequence in the aerosol discharge direction to ensure the continuity of aerosol generation, and by controlling the heating duration of each heating segment, the aerosol generating substrate corresponding to each heating segment can be prevented from generating a burnt smell, thereby improving the user experience. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of an aerosol generating device in an embodiment;

[0020] Figure 2 is a schematic internal structural diagram of an aerosol generating device in an embodiment;

[0021] Figure 3 is a schematic structural diagram of a heating element in an embodiment.

[0022] In the figure:

[0023] 1. Device main body; 11. Housing; 111. Cylindrical structure; 112. Cavity; 12. Mouthpiece; 121. Air outlet; 122. Air inlet; 13. Support; 131. Installation bin; 14. Cylinder; 141. Accommodation cavity; 142. Through hole;

[0024] 2. Heating component; 21. Heating housing; 211. Installation cavity; 212. Installation section; 213. Contact section; 214. Insertion end; 22. Heating element; 221. Heating segment; 222. First end; 223. Second end; 224. First external connection end; 225. Second external connection end. Detailed Embodiments

[0025] The present application will be further described in detail below in conjunction with the specific embodiments and the accompanying drawings. Similar elements in different embodiments are labeled with related similar element numbers. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid overwhelming the core part of the present application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0026] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be reordered or adjusted in an obvious manner by those skilled in the art. Therefore, the specification and the drawings are only for clearly describing a certain embodiment and do not mean to be the necessary composition and / or sequence.

[0027] The serial numbers assigned to the components 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" mentioned in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0028] An embodiment of the present application discloses a heating component 2, which is applied to an aerosol generating device and is used to heat an aerosol generating substrate.

[0029] Please refer to Figure 2 and Figure 3 , the heating component 2 of the embodiment of the present application includes a heating housing 21 and a heating element 22 fixedly connected to the heating housing 21. The heating housing 21 extends in a first direction, which can be understood as the extending direction of the atomization channel in the aerosol generating device. The heating housing 21 is used to contact the aerosol generating substrate. Since the heating element 22 is fixed on the heating housing 21, the heat generated by the heating element 22 is first transferred to the heating housing 21, and the heat of the heating housing 21 is transferred to the aerosol generating substrate through the contact between the heating housing 21 and the aerosol generating substrate, so as to heat the aerosol generating substrate.

[0030] The heating element 22 includes a plurality of heating segments 221 arranged staggeredly in the first direction. The heating element 22 has a first external connection end 224 and a plurality of second external connection ends 225. The first external connection end 224 is electrically connected to each heating segment 221. The number of the plurality of second external connection ends 225 is equal to the number of the plurality of heating segments 221. The second external connection ends 225 are electrically connected to the corresponding heating segments 221 one by one, so that the plurality of heating segments 221 are arranged in parallel, which is convenient to control the heating of each heating segment 221 respectively to meet the heating of the aerosol-forming substrate at different positions in the first direction. For example, the heating of each heating segment 221 can be controlled sequentially in the aerosol discharge direction to ensure the continuity of aerosol generation, and the heating duration of each heating segment 221 can also be controlled to avoid the generation of burnt smell of the aerosol-forming substrate corresponding to each heating segment 221, thereby improving the user experience.

[0031] And in the heating element 22, one first external connection end 224 can be provided, and a plurality of second external connection ends 225 are provided. The polarities of the first external connection end 224 and the second external connection ends 225 are opposite. In this way, the number of the first external connection ends 224 can be reduced, thereby simplifying the structure of the heating element 22, reducing the material consumption of the heating element 22, and reducing the costs of the heating component 2 and the entire aerosol generating device.

[0032] In some embodiments, the heating housing 21 has an installation cavity 211 extending in the first direction. The heating element 22 is fixedly installed in the installation cavity 211, which can reduce the heat transferred outwards by the heating element 22, contribute to improving the heat utilization rate of the heating element 22, and reduce the energy consumption of the heating component 2.

[0033] In one embodiment, please refer to Figure 2 and Figure 3 , the heating housing 21 is generally a tubular structure with one end open and one end closed in the first direction. The heating housing 21 is in contact with the aerosol-forming substrate; the open end of the heating housing 21 is used for the heating element 22 to be inserted. The first external connection end 224 and the second external connection ends 225 of the heating element 22 can both extend out of the open end of the heating housing 21 to realize the connection with the control circuit board in the aerosol generating device.

[0034] In another embodiment, the heating housing 21 is a tubular structure with both ends open in the first direction. An installation cavity 211 is provided inside the side wall of the tubular structure, and there is also an opening facing one side in the extending direction of the tubular structure. This opening forms the installation opening of the installation cavity 211. The heating element 22 can be loaded into the heating housing 21 from this installation opening to fix the position of the heating element 22 on the heating housing 21. The inner pipe wall surface of the tubular structure facing away from the installation cavity 211 in the direction perpendicular to the first direction is used to contact the aerosol-forming substrate.

[0035] In another embodiment, the heating housing 21 does not have the installation cavity 211, and the heating element 22 is only fixedly installed on the heating housing 21. For example, the heating housing 21 is a tubular structure with openings at both ends in the first direction, and the inner wall surface of the tubular structure is used to contact the aerosol generating substrate, and the heating element 22 can be fixed on the outer wall surface of the tubular structure.

[0036] Further, in one embodiment, please refer to Figure 2 , the heating housing 21 has an outer side surface facing away from the installation cavity 211 in a direction perpendicular to the first direction, and the heating housing 21 contacts the aerosol generating substrate through this outer side surface. The outer wall surface of the tubular structure of the heating housing 21 forms this outer side surface, and the entire closed end of the heating housing 21 is inserted into the aerosol generating substrate, so as to contact the aerosol generating substrate through the end surface and the outer wall surface of the closed end on the heating housing 21, so as to increase the contact area between the aerosol generating substrate and the heating assembly 2, which helps to improve the heat utilization rate of the heating assembly 2 and reduce the energy consumption of the heating assembly 2.

[0037] In other embodiments, the heating housing 21 is not inserted into the aerosol generating substrate, and only the end surface of the closed end of the heating housing 21 contacts the aerosol generating substrate to heat the aerosol generating substrate.

[0038] In some embodiments, the heating housing 21 has an installation section 212 and a contact section 213 arranged in the first direction. The installation section 212 is used for fixedly connecting with the device main body 1 in the aerosol generating device, and the contact section 213 is used for contacting the aerosol generating substrate.

[0039] Please refer to Figure 2 , in the embodiment where the heating housing 21 is a tubular structure with one end open and one end closed, the installation section 212 is close to or located at the open end of the heating housing 21, and the contact section 213 can be located at or close to the closed end of the heating housing 21. The heating housing 21 can be installed on the device main body 1 of the aerosol generating device through its open end, so as to realize the installation and fixation of the heating housing 21 and the entire heating assembly 2 in the aerosol generating device.

[0040] In the embodiment where the heating housing 21 is a tubular structure with openings at both ends, the installation section 212 can be located at one of the two open ends of the heating housing 21, and the contact section 213 is the part of the tubular structure used to contact the aerosol generating substrate. This part can be located between the two open ends, or can also be located at the other end of the two openings. The heating housing 21 can be hermetically clamped in the device main body 1 in the aerosol generating device, or the end where the installation section 212 of the heating housing 21 is located can also be fixedly connected to the device main body 1, and the other end is hermetically fitted with the device main body 1.

[0041] Please refer to Figure 2, in an embodiment where the heating housing 21 is inserted into the aerosol - generating substrate, the contact section 213 of the heating housing 21 has an insertion end 214 located at the end of the heating housing 21 in the first direction, and the insertion end 214 is a tip for piercing the aerosol - generating substrate. Such a tip can be a conical or pyramidal structure to facilitate the insertion of the heating housing 21 into the aerosol - generating substrate; of course, the outer - diameter dimension of the heating housing 21 can also be set to gradually decrease from the mounting section 212 towards the contact section 213 to form a small - diameter section at the contact section 213, which also facilitates the piercing of the heating housing 21 into the aerosol - generating substrate.

[0042] In some embodiments, please refer to Figure 2 and Figure 3 , for the heating element 22, the heating section 221 in the heating element 22 includes a heating wire, the heating wire includes a helical structure, the helical structure of the heating wire is wound around the outer side surface of the heating housing 21, or the heating wire is wound in the mounting cavity 211 of the heating housing 21; the axis of the helical structure extends in the first direction, and the pitch of the helical structure is equal. Setting the heating wire as a helical structure facilitates the installation and arrangement of the heating wire in the heating assembly 2, and also helps to ensure uniform heating of the heating wire in the first direction.

[0043] In other embodiments, multiple heating wires can also be provided. The multiple heating wires extend in the first direction, and adjacent two heating wires are evenly spaced circumferentially around the heating housing, and the multiple heating wires are connected end - to - end in sequence.

[0044] In one embodiment, please continue to refer to Figure 2 and Figure 3 , the lengths of all the heating sections 221 in the first direction are equal, and each heating section 221 has a first end 222 and a second end 223 located at both ends in the first direction. The first end 222 is located between the second end 223 and the insertion end 214 of the heating housing 21. Multiple first ends 222 are connected to the first external connection end 224 in the heating element 22, the number of the second ends 223 is equal to the number of the second external connection ends 225 in the heating element 22, and each second end 223 is connected to the corresponding second external connection end 225, so as to meet the design requirements of parallel connection of all the heating sections 221; and such a setting that the polarities of the ends of each heating section 221 close to the insertion end 214 of the heating housing 21 are the same and the polarities of the ends far from the insertion end 214 are the same can facilitate the processing and manufacturing of the entire heating element 22.

[0045] In other embodiments, it can also be set that the mutually - adjacent ends of two adjacent heating sections 221 in the first direction are connected to the first external connection end 224 or to the corresponding second external connection end 225, which helps to avoid short - circuiting of the mutually - adjacent ends of the two heating sections 221.

[0046] In one embodiment, please continue to refer toFigure 2 and Figure 3 Both the first external connection end 224 and the second external connection end 225 in the heating element 22 are heating wire structures extending in the first direction. One or more first external connection ends 224 can be provided, and multiple second external connection ends 225 are provided. Both the first external connection end 224 and the second external connection end 225 pass through the radial inner side of the spiral structure of each heating section 221. In this way, the spiral structure can protect the first external connection end 224 and the second external connection end 225, avoiding the heating housing 21 touching the first external connection end 224 or the second external connection end 225 during the installation of the heating element 22, which may cause the second external connection end 225 or the second external connection end 225 to bend and short-circuit with the heating section 221.

[0047] Of course, if the volume of the installation cavity 211 in the heating housing 21 is large enough, both the first external connection end 224 and the second external connection end 225 can be arranged on the radial outer side of the spiral structure of each heating section 221.

[0048] In one embodiment, please continue to refer to Figure 2 and Figure 3 It can be set that the material of the heating housing 21 includes a metal material to improve the thermal conductivity of the heating housing 21. Since the heating element 22 is charged in the working state of the heating component 2, in order to avoid short-circuiting between the heating element 22 and the heating housing 21, ceramic powder can be set in the installation cavity 211 of the heating housing 21 to fill the space of the installation cavity 211 outside the heating element 22, ensuring that the heating element 22 does not contact the heating housing 21. Through the sintering method, the fixed connection of the heating element 22, the ceramic powder and the heating housing 21 is realized.

[0049] In another embodiment, an insulating glue with good thermal conductivity can also be set in the installation cavity 211 of the heating housing 21 to separate the heating element 22 from the heating housing 21, so as to avoid short-circuiting between the heating housing 21 and the heating element 22 while satisfying the fixed connection between the heating element 22 and the heating housing 21.

[0050] In one embodiment, it can also be set that the material of the heating housing 21 includes a ceramic material. In this way, the heating element 22 located in the installation cavity 211 can be fixed in the installation cavity 211 by means of buckles, threads or adhesives. For example, a base can be set at the position of the heating element 22 close to the wire outlet end. Both the first external connection end 224 and the second external connection end 225 pass through the base in the first direction. The heating element 22 is fixedly connected to the base, and the heating element 22 can also be fixedly installed in the heating housing 21 through the base. Buckles or thread structures can be set between the base and the inner cylindrical wall of the heating housing 21, so as to realize the fixed connection between the heating element 22 and the heating housing 21.

[0051] An embodiment of the present application also discloses an aerosol generating device, which includes a device main body 1 and the heating component 2 in any of the above embodiments. The heating component 2 is installed on the device main body 1. The device main body 1 has a receiving cavity 141 for accommodating the aerosol generating matrix, and the heating component 2 is used to contact the aerosol generating matrix.

[0052] In one embodiment, please refer to Figure 1 and Figure 2 , the device main body 1 includes a housing 11, a mouthpiece 12 and a support 13. The housing 11 has a cavity 112. The support 13 is located in the cavity 112 and is installed on the housing 11. The housing 11 has an opening. The housing 11 extends into the cavity 112 at the opening to form a cylindrical structure 111. The support 13 is hermetically fitted with the cylindrical structure 111 to enclose an inner concave portion. The mouthpiece 12 has an air outlet 121. The mouthpiece 12 is fixedly connected to the housing 11 by a snap or threaded structure. The mouthpiece 12 covers the opening of the inner concave portion so that the mouthpiece 12, the housing 11 and the support 13 enclose an installation chamber 131.

[0053] The device main body 1 further includes a cylinder 14 with one end open and the other end blocked. The cylinder 14 is located in the installation chamber 131. The open end of the cylinder 14 is communicated with the air outlet 121 of the mouthpiece 12. A receiving cavity 141 is formed in the cylinder 14. The aerosol generating matrix can be inserted into the receiving cavity 141 along the air outlet 121 and the opening of the cylinder 14. The cylinder 14 can be fixed in the installation chamber 131 by a snap or threaded connection. The wall of the blocked end of the cylinder 14 forms the bottom wall of the cylinder 14, and a through hole 142 is provided on the bottom wall of the cylinder 14.

[0054] The heating component 2 is installed on the support 13 through the installation section 212 on the heating housing 21. The heating component 2 passes through the through hole 142, and the contact section 213 of the heating housing 21 is located in the receiving cavity 141 for piercing the aerosol generating matrix to realize heating of the aerosol generating matrix.

[0055] In one embodiment, please refer to Figure 2 , an air inlet 122 is formed between the mouthpiece 12 and the housing 11. Airflow can enter the annular space between the installation chamber 131 and the side wall of the cylinder 14 along the air inlet 122, then pass through the space between the bottom wall of the cylinder 14 and the wall of the installation chamber 131, and then enter the receiving cavity 141 through the through hole 142 on the bottom wall of the cylinder.

[0056] In another embodiment, the air inlet 122 is provided on the housing 11, and a ventilation hole is provided on the support 13. Airflow can enter the receiving cavity 141 in sequence along the air inlet 122, the ventilation hole on the support 13 and the through hole 142 on the bottom wall of the cylinder.

[0057] During the process of the air flow passing through the through hole 142, the air flow will come into contact with the heating component 2 in the through hole 142. The heating component 2 can transfer part of the heat to the air flow to form a hot air flow, and the hot air flow enters the accommodation cavity 141 to realize the heating of the aerosol generation matrix.

[0058] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention belongs, according to the idea of the present invention, several simple deductions, deformations or substitutions can also be made.

Claims

1. A heating component, characterized in that: include: A heat-generating shell is arranged to extend in a first direction, and the heat-generating shell is used to contact the aerosol-generating substrate; A heating element is fixedly connected to the heating shell, and the heating element includes a plurality of heating segments staggered in the first direction; the heating element has a first external terminal and a plurality of second external terminals, the first external terminal is electrically connected to each of the heating segments, the number of the plurality of second external terminals is equal to the number of the plurality of heating segments, and the second external terminals are electrically connected to the corresponding heating segments.

2. The heating component according to claim 1, characterized in that: The heat generating housing has an installation cavity extending in the first direction, and the heat generating element is fixedly installed in the installation cavity.

3. The heating component according to claim 2, characterized in that: The heat-generating housing has an outer side surface facing away from the mounting cavity in a direction perpendicular to the first direction, and the outer side surface is in contact with the aerosol-generating substrate.

4. The heating component according to claim 1, characterized in that: The heat generating housing has a mounting section and a contact section arranged in the first direction, the mounting section is used for fixed connection with a device body in the aerosol generating device, and the contact section is used for contacting with an aerosol generating substrate.

5. The heating component according to claim 4, characterized in that: The contact section has an insertion end located at the end of the heat-generating housing in the first direction, and the insertion end is a pointed end for piercing into the aerosol-generating matrix.

6. The heating component according to any one of claims 1 to 5, characterized in that: The heating section includes a heating wire, the heating wire includes a helical structure, and the axis of the helical structure extends in the first direction.

7. The heating component according to any one of claims 1 to 5, characterized in that: Each of the heating sections has a first end and a second end located at two ends of the first direction, a plurality of the first ends are connected to the first external connection end, and each of the second ends is connected to the corresponding second external connection end.

8. The heating component according to any one of claims 1 to 5, characterized in that: The heating section comprises a spiral structure, the axis of the heating section extends in the first direction, and the first external connection end and the plurality of second external connection ends all pass through the radial inner side of the spiral structure.

9. The heating component according to claim 2 or 3, characterized in that: The material of the heating housing includes a metal material, and the heating element is encapsulated in the installation cavity by ceramic slurry; Alternatively, the material of the heating housing includes ceramic material, and the heating element is fixed in the installation cavity by means of snaps, threads or adhesive.

10. An aerosol generating device, characterized in that: It comprises a device body and a heating component as described in any one of claims 1 to 9, wherein the heating component is mounted on the device body, the device body has a containing cavity for accommodating an aerosol generating substrate, and the heating component is used to contact the aerosol generating substrate.

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