Aerosol generating device, heating assembly and heat exchange core
By designing asymmetric first and second heat exchange parts in the heat exchange core of the aerosol generation device, the problems of heating rate and poor heating effect caused by excessive or too small volume of the existing heat exchange core are solved, and more efficient aerosol matrix heating is achieved.
Patent Information
- Application Number
- CN202421303668.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing heat exchange cores are usually configured to be symmetrical with a central axis, resulting in the heat exchange core either being too large, having insufficient heating rate, or being too small, having a short heat exchange path, and having too weak heating effect of hot air flow.
A heat exchange core of an aerosol generator is designed, including a first heat exchange part and a second heat exchange part, and both form an asymmetric structure. The lengths of the first airflow passage and the second airflow passage are different in the same direction. The first heat exchange part is arranged as a protruding structure on one end surface, and the second heat exchange part is arranged as a groove structure on one end surface, and the two are flush on the other end surface.
Through the design of asymmetric structure, long-length airflow channels can improve the heating time and heating effect of the airflow, while short-length channels can reduce the volume of the heat exchange core, increase the heating rate, and achieve more efficient aerosol matrix heating.
Smart Images
Figure CN222853177U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of electronic atomization technology, and in particular to an aerosol generating device, a heating component and a heat exchange core. Background Art
[0002] An aerosol generating device is a device that can heat and atomize an aerosol matrix into an aerosol. The aerosol generating device includes a heating component, some of which include a heating tube and a heat exchange core. When the aerosol generating device is working, the heating tube of the heating component generates heat to heat the heat exchange core, so that the aerosol matrix is heated by the heating tube and the hot air flow heated by the heat exchange core to generate an aerosol. The current heat exchange core is usually configured to be symmetrical relative to an axis, that is, the heat exchange path and heating effect of different areas on the heat exchange core are the same. The problem with such a solution is that either the volume of the heat exchange core is too large, resulting in an insufficient heating rate, or the volume of the heat exchange core is too small, and the heat exchange path is short, resulting in a relatively poor heating effect of the hot air flow. Utility Model Content
[0003] The main technical problem solved by the utility model is that the existing heat exchange core is usually configured to be symmetrical relative to a central axis, so that the heat exchange core is either too large, resulting in insufficient heating rate, or too small, and the heat exchange path is short, resulting in weak hot air flow heating effect.
[0004] In a first aspect, an embodiment provides a heat exchange core of an aerosol generating device, comprising a first heat exchange portion and a second heat exchange portion, wherein the first heat exchange portion has a plurality of first airflow channels penetrating the first heat exchange portion along a first direction, and the first heat exchange portion is used to heat an airflow passing through the first airflow channel;
[0005] The second heat exchange part has a plurality of second air flow channels that pass through the second heat exchange part along the first direction, and the second heat exchange part is used to heat the air flow passing through the second air flow channels; the first heat exchange part and the second heat exchange part together form an asymmetric structure so that the first air flow channel and the second air flow channel have different lengths in the first direction.
[0006] In one embodiment, the length of the first heat exchange portion in the first direction is greater than the length of the second heat exchange portion in the first direction, so that the length of the first airflow channel in the first direction is greater than the length of the second airflow channel in the first direction.
[0007] In one embodiment, the heat exchange core has a first end face and a second end face arranged opposite to each other along the first direction, the first heat exchange part is configured as a protruding structure protruding from the second heat exchange part on the first end face, and the second heat exchange part is configured as a recessed groove structure on the first end face; the first heat exchange part and the second heat exchange part are flush on the second end face.
[0008] In one embodiment, a heat exchange side wall is further included, and the first heat exchange part is adjacent to the second heat exchange part; the heat exchange side wall is arranged around the circumference of the first heat exchange part and the second heat exchange part.
[0009] In one embodiment, the abutment portion is protrudingly provided on the peripheral side of the heat exchange side wall, and is used for abutting against the tube body of the heating assembly.
[0010] In one embodiment, the first heat exchange portion, the second heat exchange portion and the heat exchange side wall are configured as an integrally formed structure.
[0011] In one embodiment, the first heat exchange part and the second heat exchange part are both configured as semi-cylindrical, and the radii of the first heat exchange part and the second heat exchange part along the cross section perpendicular to the first direction are the same; the heat exchange side wall is configured as a cylindrical structure surrounding the first heat exchange part and the second heat exchange part.
[0012] In a second aspect, an embodiment provides a heating component of an aerosol generating device, comprising a heating component and a heat exchange core as described in any one of the above items, wherein the heating component is arranged on the peripheral side of the heat exchange core, and the heating component is used to generate heat when powered on, and transfer it to the heat exchange core to heat the airflow passing through the heat exchange core.
[0013] In one embodiment, the heating component includes a tube body, a first heating film and a second heating film, one end of the tube body is sleeved on the circumference of the heat exchange core; the first heating film and the second heating film are both arranged on the tube body, and the first heating film is closer to the end of the tube body connected to the heat exchange core than the second heating film; the first heating film covers the area where the tube body is connected to the first heat exchange part of the heat exchange core.
[0014] In a third aspect, an embodiment provides an aerosol generating device, comprising a shell component and a heating component, wherein the heating component comprises a heat exchange core as described in any one of the above items; the shell component has a accommodating cavity, the accommodating cavity is used to accommodate an aerosol matrix, and the heating component is used to heat the aerosol matrix in the accommodating cavity to generate an aerosol.
[0015] According to the aerosol generating device, heating assembly and heat exchange core of the above embodiment, the heat exchange core includes a first heat exchange part and a second heat exchange part, the first heat exchange part has a plurality of first airflow channels penetrating the first heat exchange part along the first direction, and the first heat exchange part is used to heat the airflow passing through the first airflow channel; the second heat exchange part has a plurality of second airflow channels penetrating the second heat exchange part along the first direction, and the second heat exchange part is used to heat the airflow passing through the second airflow channel; the first heat exchange part and the second heat exchange part jointly form an asymmetric structure, so that the lengths of the first airflow channel and the second airflow channel in the first direction are different. Since the first heat exchange part and the second heat exchange part jointly form an asymmetric structure, the lengths of the first airflow channel and the second airflow channel in the first direction are different. On the one hand, the longer one of the first airflow channel and the second airflow channel is conducive to improving the heating time and heating effect of the airflow, thereby facilitating the purpose of quickly heating the aerosol matrix through the high-temperature airflow. On the other hand, the first heat exchange part or the second heat exchange part where the shorter one of the first airflow channel and the second airflow channel is located can be set as a concave structure, so as to reduce the volume of the heat exchange core to a suitable size, thereby achieving the purpose of increasing the heating rate of the heat exchange core. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic structural diagram of a three-dimensional perspective of an aerosol generating device in one embodiment of the present application;
[0017] Figure 2 This is a schematic diagram of the structure of an aerosol generating device in an embodiment of the present application from a top view;
[0018] Figure 3 For this application Figure 2 Cross-sectional view along AA direction;
[0019] Figure 4 This is a schematic structural diagram of a heating component from a three-dimensional perspective in one embodiment of the present application;
[0020] Figure 5 This is a schematic diagram of the structure of a heating component in an embodiment of the present application when viewed from the bottom;
[0021] Figure 6 This is a schematic structural diagram of a heat exchange core from a three-dimensional perspective in an embodiment of the present application;
[0022] Figure 7 This is a schematic diagram of the structure of a heat exchange core from a top view in one embodiment of the present application;
[0023] Figure 8 For this application Figure 7 Cross-sectional view along CC direction;
[0024] Figure markings: 1000, heating component; 1100, heat exchange core; 1110, first heat exchange part; 1111, first air flow channel; 1120, second heat exchange part; 1121, second air flow channel; 1130, first end surface; 1140, second end surface; 1150, heat exchange side wall; 1160, abutment part; 1200, heating component; 1210, tube body; 1220, first heating film; 1230, second heating film; 2000, shell component; 2100, accommodating cavity. DETAILED DESCRIPTION
[0025] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. 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, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and 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 description 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 implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.
[0027] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).
[0028] This embodiment provides an aerosol generating device.
[0029] Please refer to Figure 1-8 The aerosol generating device includes a shell component 2000 and a heating component 1000.
[0030] Please refer to Figure 1-4The heating component 1000 includes a heat exchange core 1100 , and the shell component 2000 has a receiving cavity 2100 , the receiving cavity 2100 is used to receive an aerosol matrix, and the heating component 1000 is used to heat the aerosol matrix in the receiving cavity 2100 to generate an aerosol.
[0031] When using the aerosol generating device, the aerosol substrate is placed in the containing chamber 2100, and the aerosol substrate is heated by the heating assembly 1000, thereby generating aerosol for the user. Specifically, the heat exchange core 1100 can heat the airflow flowing through the heat exchange core 1100, and then heat the aerosol substrate through the high-temperature airflow.
[0032] On the other hand, this embodiment further provides a heating component 1000 .
[0033] Please refer to Figure 1-8 The heating component 1000 includes a heating component 1200 and a heat exchange core 1100 .
[0034] Please refer to Figure 1-4 The heating component 1200 is arranged on the peripheral side of the heat exchange core 1100. The heating component 1200 is used to generate heat when powered on and transfer it to the heat exchange core 1100 to heat the airflow passing through the heat exchange core 1100.
[0035] When the aerosol generating device is used, the heating component 1200 generates heat when powered on and transfers the heat to the heat exchange core 1100 , thereby increasing the temperature inside the heat exchange core 1100 , and then heating the airflow passing through the heat exchange core 1100 through the heat exchange core 1100 .
[0036] Please refer to Figure 1-5 In one embodiment, the heating component 1200 includes a tube body 1210, a first heating film 1220 and a second heating film 1230, and one end of the tube body 1210 is sleeved on the circumference of the heat exchange core 1100. The first heating film 1220 and the second heating film 1230 are both arranged on the tube body 1210, and the first heating film 1220 is closer to the end of the tube body 1210 connected to the heat exchange core 1100 than the second heating film 1230. The first heating film 1220 covers the area where the tube body 1210 is connected to the first heat exchange part 1110 of the heat exchange core 1100.
[0037] Please refer to Figure 1-6On the one hand, when the heating component 1200 is working, the first heating film 1220 and the second heating film 1230 generate heat and transfer the heat to the tube body 1210 and the heat exchange core 1100, thereby heating the surrounding side of the aerosol substrate through the tube body 1210, and heating the airflow flowing to the aerosol substrate through the heat exchange core 1100, so that the high-temperature airflow cooperates with the tube body 1210 to heat the aerosol substrate. On the other hand, due to the position design of the first heating film 1220 and the second heating film 1230, the heat generated by the first heating film 1220 can be transferred to the first heat exchange part 1110 of the heat exchange core 1100 more and faster, which is conducive to improving the heating rate of the first heat exchange part 1110. When the length of the first airflow channel 1111 of the first heat exchange part 1110 is longer, the first heat exchange part 1110 can heat a hot airflow with a higher temperature and a longer heating path. In other embodiments, the heating component 1200 can also use a resistance wire, an electromagnetic induction coil or other suitable heating structure.
[0038] Specifically, please refer to Figure 5 , when the orthographic projection of the heat exchange core 1100 along the first direction is a circle, the first heating film 1220 covers the arc of the first heat exchange portion 1110, and the center angle B of the arc covered by the first heating film 1220 is 148°. Of course, in other embodiments, according to actual needs, the center angle B of the arc covered by the first heating film 1220 can also be other suitable angles, for example, 145°, 146°, 147°, 149° or 150°.
[0039] On the other hand, this embodiment also provides a heat exchange core 1100 .
[0040] Please refer to Figure 1-8 The heat exchange core 1100 includes a first heat exchange part 1110 and a second heat exchange part 1120. The first heat exchange part 1110 has a first airflow channel 1111 that runs through the first heat exchange part 1110 along a first direction, and the first heat exchange part 1110 is used to heat the airflow passing through the first airflow channel 1111. The second heat exchange part 1120 has a second airflow channel 1121 that runs through the second heat exchange part 1120 along a first direction, and the second heat exchange part 1120 is used to heat the airflow passing through the second airflow channel 1121. The first heat exchange part 1110 and the second heat exchange part 1120 together form an asymmetric structure, so that the lengths of the first airflow channel 1111 and the second airflow channel 1121 in the first direction are different.
[0041] Since the first heat exchange part 1110 and the second heat exchange part 1120 form an asymmetric structure together, the lengths of the first airflow channel 1111 and the second airflow channel 1121 in the first direction are different. On the one hand, the longer one of the first airflow channel 1111 and the second airflow channel 1121 is conducive to improving the heating time and heating effect of the airflow, thereby facilitating the purpose of quickly heating the aerosol matrix through high-temperature airflow. On the other hand, the first heat exchange part 1110 or the second heat exchange part 1120 where the shorter one of the first airflow channel 1111 and the second airflow channel 1121 is located can be set to a concave structure, which is conducive to reducing the volume of the heat exchange core 1100 to a suitable size, thereby achieving the purpose of increasing the heating rate of the heat exchange core 1100.
[0042] It should be noted that when the heat exchange core 1100 is a columnar or strip structure, the "first direction" can be understood as the axial direction of the heat exchange core 1100. Of course, the "first direction" can also be understood as the flow direction of the airflow when passing through the heat exchange core 1100. For details, please refer to Figure 4 and 8 , the “first direction” in this embodiment is Figure 4 and 8 The direction indicated by the central axis L1. In this embodiment, the first heat exchange part 1110 and the second heat exchange part 1120 together form an "asymmetric structure", which means that the two are at least asymmetric relative to the central axis of the heat exchange core 1100.
[0043] Please refer to Figure 6-8 In one embodiment, the length of the first heat exchange portion 1110 in the first direction is greater than the length of the second heat exchange portion 1120 in the first direction, so that the length of the first airflow channel 1111 in the first direction is greater than the length of the second airflow channel 1121 in the first direction.
[0044] Since the length of the first heat exchange part 1110 in the first direction is greater than the length of the second heat exchange part 1120 in the first direction, when the first airflow channel 1111 penetrates the first heat exchange part 1110 along the first direction, and the second airflow channel 1121 penetrates the second heat exchange part 1120 along the second direction, the length of the first airflow channel 1111 in the first direction is greater than the length of the second airflow channel 1121 in the first direction. As a result, the heating path of the airflow in the first airflow channel 1111 is longer, and the temperature of the airflow after heating is higher. When the airflow with a higher temperature heats the aerosol matrix, the aerosol matrix can generate the first aerosol more quickly, which will provide a better user experience. The heating path of the airflow in the second airflow channel 1121 is shorter, and the temperature of the airflow after heating is lower. The airflow with a lower temperature can be used to assist in heating the aerosol matrix.
[0045] Please refer to Figure 6-8In one embodiment, the heat exchange core 1100 has a first end surface 1130 and a second end surface 1140 arranged opposite to each other along a first direction, the first heat exchange portion 1110 is configured as a protruding structure protruding from the second heat exchange portion 1120 on the first end surface 1130, and the second heat exchange portion 1120 is configured as a recessed groove structure on the first end surface 1130. The first heat exchange portion 1110 and the second heat exchange portion 1120 are flush on the second end surface 1140.
[0046] Since the first heat exchange part 1110 is a protruding structure on the first end surface 1130, and the second heat exchange part 1120 is a groove structure, and the first heat exchange part 1110 and the second heat exchange part 1120 are flush with each other on the second end surface 1140, the length of the first heat exchange part 1110 in the first direction is greater than the length of the second heat exchange part 1120 in the first direction, and the length of the first airflow channel 1111 in the first direction is greater than the length of the second airflow channel 1121 in the first direction. Of course, in other embodiments, the first heat exchange part 1110 and the second heat exchange part 1120 may not be flush with each other on the second end surface 1140, as long as the length of the first heat exchange part 1110 in the first direction is greater than the length of the second heat exchange part 1120 in the first direction.
[0047] Please refer to Figure 4 and 6 -8. In one embodiment, the heat exchange core 1100 further includes a heat exchange side wall 1150, and the first heat exchange portion 1110 is adjacent to the second heat exchange portion 1120. The heat exchange side wall 1150 is disposed around the circumference of the first heat exchange portion 1110 and the second heat exchange portion 1120.
[0048] Since the heat exchange side wall 1150 surrounds the first heat exchange part 1110 and the second heat exchange part 1120 , when the heating component 1200 is working, the heat generated by the heating component 1200 can be transferred to the first heat exchange part 1110 and the second heat exchange part 1120 through the heat exchange side wall 1150 .
[0049] Please refer to Figure 4 and 6 -8. In one embodiment, the heat exchange core 1100 further includes an abutment portion 1160 , which is protruding from the circumference of the heat exchange side wall 1150 and is used to abut against the tube body 1210 of the heating assembly 1000 .
[0050] When one end of the tube body 1210 in the heating component 1200 is sleeved with the heat exchange core 1100, the tube body 1210 can abut against the abutment portion 1160. This makes the installation cooperation between the tube body 1210 and the heat exchange core 1100 more stable on the one hand, and on the other hand, it is also convenient for the installer to confirm whether the heat exchange core 1100 is installed in place on the tube body 1210.
[0051] Please refer to Figure 6-8 In one embodiment, the first heat exchange part 1110, the second heat exchange part 1120 and the heat exchange side wall 1150 are configured as an integrally formed structure. This is beneficial to reducing the production cost of the heat exchange core 1100, and on the other hand, it is not necessary to assemble the first heat exchange part 1110, the second heat exchange part 1120 and the heat exchange side wall 1150, which is also beneficial to improving production efficiency.
[0052] Please refer to Figure 4 and 6 -8, in one embodiment, the first heat exchange part 1110 and the second heat exchange part 1120 are both configured as semi-cylindrical, and the radii of the first heat exchange part 1110 and the second heat exchange part 1120 along the cross section perpendicular to the first direction are the same. The heat exchange side wall 1150 is configured as a cylindrical structure surrounding the first heat exchange part 1110 and the second heat exchange part 1120.
[0053] The overall shape of the heat exchange core 1100 is a cylinder with a concave portion on one end surface, and the inner cavity of the tube body 1210 is mostly cylindrical, which will make the assembly fit between the heat exchange core 1100 and the tube body 1210 higher. Of course, in other embodiments, the shapes of the first heat exchange part 1110 and the second heat exchange part 1120 can also be rectangular or other suitable shapes.
[0054] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of the present invention.
Claims
1. A heat exchange core of an aerosol generating device, characterized in that: comprising a first heat exchange portion and a second heat exchange portion; The first heat exchange part has a plurality of first air flow channels penetrating the first heat exchange part along a first direction. The first heat exchange part is used to heat the airflow passing through the first airflow channel; The second heat exchange part has a plurality of second air flow channels penetrating the second heat exchange part along the first direction, and the second heat exchange part is used to heat the air flow passing through the second air flow channels; The first heat exchange portion and the second heat exchange portion together form an asymmetric structure, so that the first airflow channel and the second airflow channel have different lengths in the first direction.
2. The heat exchange core according to claim 1, characterized in that: The length of the first heat exchange portion in the first direction is greater than the length of the second heat exchange portion in the first direction, so that the length of the first airflow channel in the first direction is greater than the length of the second airflow channel in the first direction.
3. The heat exchange core according to claim 2, characterized in that: The heat exchange core has a first end face and a second end face arranged opposite to each other along the first direction, the first heat exchange part is configured as a protruding structure protruding from the second heat exchange part on the first end face, and the second heat exchange part is configured as a recessed groove structure on the first end face; the first heat exchange part and the second heat exchange part are flush on the second end face.
4. The heat exchange core according to claim 1, characterized in that: It also includes a heat exchange side wall, the first heat exchange part is adjacent to the second heat exchange part; the heat exchange side wall is arranged around the circumference of the first heat exchange part and the second heat exchange part.
5. The heat exchange core according to claim 4, characterized in that: It also includes an abutment portion, which is protruding from the peripheral side of the heat exchange side wall and is used to abut against the pipe body of the heating component.
6. The heat exchange core according to claim 4, characterized in that: The first heat exchange portion, the second heat exchange portion and the heat exchange side wall are configured as an integrally formed structure.
7. The heat exchange core according to claim 4, characterized in that: The first heat exchange part and the second heat exchange part are both configured as semi-cylindrical, and the radii of the first heat exchange part and the second heat exchange part along the cross section perpendicular to the first direction are the same; the heat exchange side wall is configured as a cylindrical structure surrounding the first heat exchange part and the second heat exchange part.
8. A heating assembly of an aerosol generating device, characterized in that: It comprises a heating component and a heat exchange core as described in any one of claims 1 to 7, wherein the heating component is arranged on the peripheral side of the heat exchange core, and the heating component is used to generate heat when powered on and transfer it to the heat exchange core to heat the airflow passing through the heat exchange core.
9. The heating assembly according to claim 8, characterized in that The heating component includes a tube body, a first heating film and a second heating film. One end of the tube body is sleeved on the circumference of the heat exchange core; the first heating film and the second heating film are both arranged on the tube body, and the first heating film is closer to the end of the tube body connected to the heat exchange core than the second heating film; the first heating film covers the area where the tube body is connected to the first heat exchange part of the heat exchange core.
10. An aerosol generating device, characterized in that: It comprises a shell component and a heating component, wherein the heating component comprises the heat exchange core as described in any one of claims 1 to 7; the shell component has a accommodating cavity, the accommodating cavity is used to accommodate an aerosol matrix, and the heating component is used to heat the aerosol matrix in the accommodating cavity to generate an aerosol.