Heating assembly and aerosol generating device
By using an axially arranged magnetic induction coil group and induction heating element in the aerosol generating device, the problems of scalding the mouth and uneven heating in magnetic induction heating are solved, and uniform heating of the aerosol matrix and improvement of energy utilization efficiency are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-04-03
AI Technical Summary
In magnetic induction heating, the aerosol generating device suffers from problems such as scalding the mouth and uneven heating.
It employs at least two sets of magnetic induction coils arranged along the axial direction, with the magnetic induction coils at the first and second ends being denser and those in the middle being sparser. The induction heating element is used to heat the aerosol matrix in response to the alternating magnetic field. Heating uniformity is achieved by adjusting the current magnitude and pitch design.
It effectively prevents the aerosol matrix from being baked at high temperatures, thus avoiding burns, improves the heating uniformity of each part of the aerosol matrix, avoids overheating in the middle, enhances the energy utilization rate of the heating component, and reduces energy consumption.
Smart Images
Figure CN224069798U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of aerosol generation technology, specifically to a heating component and an aerosol generation device. Background Technology
[0002] An aerosol generating device is a device that heats and atomizes an aerosol matrix to generate aerosols. There are generally two methods for heating the aerosol matrix: resistance heating and magnetic induction heating. In magnetic induction heating, an induction coil surrounding an induction tube is energized. The induction tube heats up under the influence of an alternating magnetic field. By bringing the induction tube into contact with the aerosol matrix, aerosols are generated from the matrix.
[0003] The magnetic induction coil is usually wrapped around the entire outer circumference of the induction tube. When the magnetic induction coil is energized, it will bake the entire aerosol matrix segment. The entire matrix segment heats up and bakes out a large amount of water vapor, causing the aerosol to be hot to the touch. Furthermore, due to the influence of heat dissipation on different parts of the matrix segment along the axis, the degree of baking in different parts of the matrix segment along the axis is different, resulting in uneven heating. Utility Model Content
[0004] This application provides a heating component and an aerosol generating device that can solve the problems of burnt mouth and uneven heating caused by electromagnetic heating aerosols.
[0005] To address the aforementioned technical problems, this application provides a heating assembly comprising a support assembly, a magnetic induction coil assembly, and an induction heating element. The support assembly has a receiving cavity for containing an aerosol matrix. The magnetic induction coil assembly is arranged around the outer periphery of the receiving cavity, and includes at least two magnetic induction coils arranged sequentially along the axial direction of the receiving cavity. The magnetic induction coil assembly has a first end, a middle portion, and a second end along the axial direction of the receiving cavity, with the middle portion located between the first and second ends. The magnetic induction coils at the first and second ends are more densely packed than those at the middle portion. The induction heating element is used to heat the aerosol matrix located within the receiving cavity in response to the alternating magnetic field generated by the magnetic induction coil assembly.
[0006] In one embodiment, the pitch of both the first end and the second end is smaller than the pitch of the middle part.
[0007] In one embodiment, at least one magnetic induction coil has a varying pitch.
[0008] In one embodiment, there are two magnetic induction coils, namely a first magnetic induction coil and a second magnetic induction coil. The pitch of the first magnetic induction coil gradually increases from the end away from the second magnetic induction coil to the end closer to the second magnetic induction coil, and the pitch of the second magnetic induction coil gradually increases from the end away from the first magnetic induction coil to the end closer to the first magnetic induction coil.
[0009] In one embodiment, the end of the first magnetic induction coil near the second magnetic induction coil overlaps with the end of the second magnetic induction coil near the first magnetic induction coil.
[0010] In one embodiment, the pitch of both the first magnetic induction coil and the second magnetic induction coil is either abrupt or gradual pitch.
[0011] In one embodiment, the number of magnetic induction coils is at least three, and the pitch of each magnetic induction coil remains constant.
[0012] In one embodiment, the inductive heating element is a soft magnetic heating tube, which is fixed on the support assembly and has a receiving cavity formed inside.
[0013] To address the aforementioned technical problems, this application provides an aerosol generating device, which includes the heating component mentioned in any of the above claims.
[0014] In one embodiment, the bracket assembly includes a first bracket and a second bracket. A mounting cavity is formed in the first bracket, and the second bracket is sealed to one end of the mounting cavity. A heating element is disposed in the mounting cavity, with one end of the heating element abutting against the first bracket and the other end of the heating element abutting against the second bracket.
[0015] This application provides a heating assembly, which includes a support assembly, a magnetic induction coil group, and an induction heating element. The support assembly has a receiving cavity; the magnetic induction coil group is arranged around the outer periphery of the receiving cavity, and includes at least two magnetic induction coils arranged sequentially along the axial direction of the receiving cavity; the magnetic induction coil group has a first end, a middle section, and a second end along the axial direction of the receiving cavity, with the magnetic induction coils at the first and second ends being more densely packed than those at the middle section; the induction heating element is used to heat an aerosol matrix located within the receiving cavity. Because the magnetic induction coil group of this application includes at least two magnetic induction coils arranged along the axial direction of the receiving cavity, each magnetic induction coil can use a different current to heat different parts of the aerosol matrix, allowing a portion of the aerosol matrix structure to be heated with relatively low power, preventing the problem of scalding the mouth due to high-temperature baking of the entire aerosol matrix segment. Furthermore, due to the slow heat dissipation in the middle of the matrix segment, the middle of the matrix segment is prone to overheating. The first and second ends of the magnetic induction coil group of this application are more densely packed than the middle, and the magnetic induction coil group heats the two ends of the matrix segment axially to a higher degree than the middle, so as to balance the overheating situation in the middle and improve the heating uniformity of each part of the matrix segment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of this application;
[0017] Figure 2 for Figure 1 A sectional view;
[0018] Figure 3 This is a schematic diagram of the structure of a heating assembly provided in one embodiment of this application;
[0019] Figure 4 for Figure 3 Exploded view;
[0020] Figure 5 for Figure 3 A sectional view.
[0021] Reference numerals: heating component 10, bracket assembly 11, first bracket 111, mounting cavity 1111, second bracket 112, magnetic induction coil group 12, magnetic induction coil 121, first magnetic induction coil 1211, second magnetic induction coil 1212, first end 122, middle part 123, second end 124, induction heating element 13, receiving cavity 131, socket 132. Detailed Implementation
[0022] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0023] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.
[0024] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0025] The terms "parallel" and "perpendicular," etc., are specific to the current technological level, not absolute mathematical definitions. Slight deviations are permissible; approximations of parallelism or perpendicularity are acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, with the angle between A and B ranging from 0° to 10°. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, with the angle between A and B ranging from 80° to 100°. The directional terms used in the embodiments of this application, such as "upper," "inner," "outer," and "side," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0026] Please refer to Figure 1 and Figure 2This application provides an aerosol generating device for heating an aerosol matrix to generate aerosols. The aerosol matrix can be used as a consumable in the aerosol generating device. In one embodiment, the aerosol matrix may include a matrix section, a cooling section, and a filter section. The matrix section is used to contain grass-like matrix, the cooling section is used to cool the aerosols generated in the matrix section, and the filter section can filter the aerosols. A user can draw in the aerosols generated in the matrix section by suctioning the filter section. Of course, in other embodiments, the aerosol matrix may have other structures, not limited to those mentioned above, and this application does not impose any limitations on this. In this application, the aerosol generating device may or may not include an aerosol matrix.
[0027] The aerosol generating device includes a heating component 10. The heating component 10 is used to heat the matrix segment of the aerosol matrix to generate aerosols from the aerosol matrix. In addition, the aerosol generating device may also include components such as a housing, a battery, and a circuit board, with the battery, circuit board, and heating component 10 all housed within the housing.
[0028] Please refer to Figure 3-5 As shown, the heating assembly 10 includes a support assembly 11, a magnetic induction coil assembly 12, and an induction heating element 13. The support assembly 11 has a receiving cavity 131 for receiving the aerosol matrix. One end of the receiving cavity 131 has an insertion port 132 for inserting the aerosol matrix into the receiving cavity 131. The receiving cavity 131 can be formed by the induction heating element 13, or the support assembly 11 can form the receiving cavity 131, with the induction heating element 13 disposed within it. For example, in one embodiment, the induction heating element 13 can specifically be a soft magnetic heating tube, fixed to the support assembly 11, with the receiving cavity 131 formed within the soft magnetic heating tube. In other embodiments, the support assembly 11 may include a receiving tube that does not have the function of magnetic induction heating. The induction heating element 13 can be disposed within the receiving tube; for example, a magnetic induction heating needle can be disposed within the receiving tube, meaning the receiving tube may only serve to fix the aerosol matrix. Preferably, the induction heating element 13 directly forms a receiving cavity 131 inside. The induction heating element 13 is used to respond to the alternating magnetic field generated by the magnetic induction coil group 12 to heat the aerosol matrix located in the receiving cavity 131 and ensure that the aerosol matrix is heated uniformly in the circumference of the aerosol matrix.
[0029] A magnetic induction coil assembly 12 is arranged around the outer periphery of the receiving cavity 131. Specifically, the magnetic induction coil assembly 12 is a helical coil. In one embodiment, the support assembly 11 includes a first support 111 and a second support 112. The first support 111 is open at both ends along its axial direction, and a mounting cavity 1111 is formed inside the first support 111. The second support 112 is sealed to one end of the mounting cavity 1111. An induction heating element 13 is disposed inside the mounting cavity 1111, with one end of the induction heating element 13 abutting against the first support 111 and the other end abutting against the second support 112, thereby fixing the induction heating element 13 to the support assembly 11. Preferably, the induction heating element 13 is a soft magnetic heating tube, with a gap between the outer wall of the soft magnetic heating tube and the inner wall of the mounting cavity 1111. Thus, an air layer exists between the soft magnetic heating tube and the first support 111. The air layer can serve as insulation to prevent heat from the soft magnetic heating tube from escaping from the first support 111, thereby improving the energy utilization rate of the soft magnetic heating tube and reducing energy consumption. In addition, a heat insulation layer can be installed on the inner wall of the mounting cavity 1111 to further enhance the heat insulation effect.
[0030] The first support 111 and the second support 112 are preferably made of high-temperature resistant and low-thermal-conductivity materials, such as polyetheretherketone (PEEK). The soft magnetic heating tube is preferably made of stainless steel, and the magnetic induction coil assembly 12 is preferably made of copper wire, silver wire, etc.
[0031] like Figure 3 and Figure 4 The magnetic induction coil assembly 12 includes at least two magnetic induction coils 121, each of which can be independently energized. The at least two magnetic induction coils 121 are arranged sequentially along the axial direction of the receiving cavity 131. Adjacent magnetic induction coils 121 may partially overlap, or they may be completely spaced apart. Preferably, adjacent magnetic induction coils 121 partially overlap so that their corresponding heating areas on the soft magnetic heating tube partially overlap, thus avoiding gaps between the heating areas of each magnetic induction coil 121 and preventing insufficient baking of the substrate segment.
[0032] Because the magnetic induction coil assembly 12 of this application includes at least two magnetic induction coils 121 arranged axially along the receiving cavity 131, each magnetic induction coil 121 can use different current magnitudes to heat different parts of the aerosol matrix. This allows a portion of the aerosol matrix structure to be heated with relatively low power, preventing the entire matrix segment from being baked at high temperatures and causing burns. For example, during the preheating period, the current magnitude of the magnetic induction coil 121 near the insertion port 132 of the receiving cavity 131 can be greater than that of the magnetic induction coil 121 away from the receiving cavity 131. This ensures that aerosol is primarily generated at the top of the matrix segment in the early stages, facilitating rapid aerosol generation. In the later stages, the current magnitude of the magnetic induction coil 121 away from the insertion port 132 of the receiving cavity 131 can be greater than that of the magnetic induction coil 121 near the insertion port 132 of the receiving cavity 131, so that the bottom of the matrix segment can also be sufficiently heated. Therefore, by employing at least two magnetic induction coils 121, the heating assembly 10 can also have more heating modes.
[0033] The magnetic induction coil assembly 12 has a first end 122, a middle portion 123, and a second end 124 along the axial direction of the receiving cavity 131. The middle portion 123 is located between the first end 122 and the second end 124. The magnetic induction coils at the first end 122 and the second end 124 are more densely packed than those at the middle portion 123. The axial lengths of the three segments—the first end 122, the middle portion 123, and the second end 124—are not limited; it is sufficient that the magnetic induction coil assembly 12 as a whole exhibits a denser arrangement at both ends and a sparser arrangement in the middle. Preferably, the first end 122, the middle portion 123, and the second end 124 are approximately trisected in the axial direction. Specifically, as shown... Figure 3 As shown, in one embodiment, the pitch of the first end 122 and the second end 124 is smaller than the pitch of the middle portion 123, so that the first end 122 and the second end 124 are more closely spaced relative to the middle portion 123.
[0034] Because the middle part 123 of the substrate segment is affected by slow heat dissipation, the middle part 123 of the substrate segment is prone to overheating. Therefore, the magnetic induction coil group 12 of this application is dense at both ends and sparse in the middle. The magnetic induction coil group 12 heats the two ends of the substrate segment axially to a higher degree than the middle part 123, so as to balance the situation that the middle part 123 is prone to overheating and improve the uniformity of heating of each part of the substrate segment.
[0035] In one embodiment, at least one magnetic induction coil 121 has a varying pitch. For example, in one embodiment, there are two magnetic induction coils 121, namely a first magnetic induction coil 1211 and a second magnetic induction coil 1212. The pitch of the first magnetic induction coil 1211 gradually increases from the end away from the second magnetic induction coil 1212 to the end closer to the second magnetic induction coil 1212, and the pitch of the second magnetic induction coil 1212 gradually increases from the end away from the first magnetic induction coil 1211 to the end closer to the first magnetic induction coil 1211. This allows the magnetic induction coil assembly 12 to have an overall structure that is denser at both ends and sparser in the middle, improving the uniformity of heating.
[0036] In one embodiment, the end of the first magnetic induction coil 1211 near the second magnetic induction coil 1212 overlaps with the end of the second magnetic induction coil 1212 near the first magnetic induction coil 1211, thereby avoiding a gap between the heating areas corresponding to the first magnetic induction coil 1211 and the second magnetic induction coil 1212, and preventing insufficient heating of the aerosol matrix.
[0037] In one embodiment, the pitch of the first magnetic induction coil 1211 and the second magnetic induction coil 1212 are both abrupt pitch or gradual pitch. Preferably, the first magnetic induction coil 1211 and the second magnetic induction coil 1212 both have gradual pitch to improve the uniformity of heating.
[0038] In one embodiment, the number of magnetic induction coils 121 is at least three, and the pitch of each magnetic induction coil 121 remains unchanged. For example, the number of magnetic induction coils 121 can be three, and the magnetic induction coils 121 located at both ends have a smaller pitch and the magnetic induction coils 121 located in the middle have a larger pitch, thereby realizing the structure of the magnetic induction coil group 12 with denser ends and sparser middle.
[0039] The above examples illustrate this application only to aid in understanding the invention and are not intended to limit the scope of the application. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the concept of this application.
Claims
1. A heating assembly, characterized in that, include: A support assembly having a receiving cavity for containing an aerosol matrix; A magnetic induction coil assembly is arranged around the outer periphery of the receiving cavity. The magnetic induction coil assembly includes at least two magnetic induction coils, which are arranged sequentially along the axial direction of the receiving cavity. The magnetic induction coil assembly has a first end, a middle portion, and a second end along the axial direction of the receiving cavity. The middle portion is located between the first end and the second end. The magnetic induction coils at the first end and the second end are more densely packed than the magnetic induction coils at the middle portion. And an inductive heating element, which is used to heat the aerosol matrix located in the containment cavity in response to the alternating magnetic field generated by the magnetic induction coil group.
2. The heating assembly according to claim 1, characterized in that, The pitch of the first end and the second end is smaller than the pitch of the middle part.
3. The heating assembly according to claim 1, characterized in that, At least one of the magnetic induction coils has a varying pitch.
4. The heating assembly according to claim 3, characterized in that, The number of magnetic induction coils is two, namely a first magnetic induction coil and a second magnetic induction coil. The pitch of the first magnetic induction coil gradually increases from the end away from the second magnetic induction coil to the end closer to the second magnetic induction coil, and the pitch of the second magnetic induction coil gradually increases from the end away from the first magnetic induction coil to the end closer to the first magnetic induction coil.
5. The heating assembly according to claim 4, characterized in that, The end of the first magnetic induction coil near the second magnetic induction coil overlaps with the end of the second magnetic induction coil near the first magnetic induction coil.
6. The heating assembly according to claim 4, characterized in that, The pitch of both the first magnetic induction coil and the second magnetic induction coil is either abrupt or gradual pitch.
7. The heating assembly according to claim 1 or 2, characterized in that, The number of magnetic induction coils is at least three, and the pitch of each magnetic induction coil remains constant.
8. The heating assembly according to any one of claims 1-7, characterized in that, The inductive heating element is a soft magnetic heating tube, which is fixed on the support assembly, and the receiving cavity is formed inside the soft magnetic heating tube.
9. An aerosol generating device, characterized in that, Includes the heating component as described in any one of claims 1-8.
10. The aerosol generating apparatus according to claim 9, characterized in that, The bracket assembly includes a first bracket and a second bracket. The first bracket forms a mounting cavity, and the second bracket is sealed to one end of the mounting cavity. The inductive heating element is disposed in the mounting cavity, and one end of the inductive heating element abuts against the first bracket, while the other end of the inductive heating element abuts against the second bracket.