Aerosol generating device and airflow heating assembly thereof
By providing a buffer structure and air holes on the heat exchange core of the airflow heating assembly, the contact instability and damage caused by expansion of components in the prior art is solved, and the uniformity and stability of the hot air flow temperature are achieved.
Patent Information
- Application Number
- CN202421237138.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The hot air flow heating components in existing aerosol generation devices have different expansion coefficients, resulting in damage to parts and unstable contact, resulting in increased thermal resistance and uneven temperature problems.
An airflow heating assembly is designed, including a heat generating tube and a heat exchange core. The heat exchange core is provided with a plurality of air holes and a buffer structure in the axial direction. The buffer structure separates the core through the first groove to provide a heat-expanded extrusion space, and the hanging ears are used to limit positions to ensure stable contact.
It effectively avoids contact instability and damage between components after heating, reduces thermal resistance, and ensures uniformity and stability of hot air flow temperature.
Smart Images
Figure CN222622208U_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 and an airflow heating component thereof. Background Art
[0002] The components in the hot air flow heating assembly of the existing aerosol generating device have tolerances between different materials. When heated, the components are easily damaged due to the different expansion coefficients between the components. It also causes unstable contact between the components, resulting in increased thermal resistance and uneven hot air flow temperature. Utility Model Content
[0003] An aerosol generating device and an airflow heating component thereof provided in an embodiment of the present application effectively solve the problem that the heating component in the existing aerosol generating device has unstable contact between components after heating and is easily damaged after expansion.
[0004] According to one aspect of the present application, an embodiment provides an airflow heating component of an aerosol generating device, including a heating pipe and a heat exchange core;
[0005] The heat exchange core comprises a core body and a hanging ear, wherein the core body is arranged in the heating tube, and the outer wall of the core body contacts the inner wall of the heating tube; a plurality of through pores are arranged in the core body, one end of the pores is connected to the air inlet channel of the aerosol generating device, and the other end faces the direction of the aerosol generating substrate insertion, and the core body has a buffer structure arranged in the axial direction, and the buffer structure is used to leave a squeezing space for the thermal expansion of the core body when the temperature rises;
[0006] The hanging ear is used to limit the portion of the heat exchange core located in the heating tube.
[0007] In an achievable implementation, the buffer structure includes a first groove, which opens on the upper surface and the outer wall of the core body; the opening of the first groove on the upper surface of the core body is arranged radially.
[0008] In an achievable embodiment, the first groove is arranged to penetrate the core body along the axial direction and separate the core body into a first part and a second part;
[0009] The hanging ear connects the first part and the second part of the core, and the hanging ear is located outside the heating tube and is clamped at the bottom end of the heating tube.
[0010] In a feasible implementation, the outer diameter of the core is greater than the inner diameter of the heating tube.
[0011] In one feasible embodiment, the first part and the second part are respectively provided with a second groove, the depth of the second groove is less than the height of the core body, the second groove of the first part opens to the upper surface and outer wall of the first part, and the second groove of the second part opens to the upper surface and outer wall of the second part.
[0012] In an achievable embodiment, the buffer structure includes a plurality of first grooves, each of which opens on the upper surface and the outer wall of the core body and divides the core body into a plurality of parts along the longitudinal direction;
[0013] A plurality of the hanging ears are provided, and each of the hanging ears connects two adjacent parts of the core body.
[0014] In a feasible implementation, the core is made of aluminum alloy or copper.
[0015] In an achievable implementation, the heating pipe includes a substrate and a heating circuit disposed on the outer surface of the substrate; the heating circuit is used to heat the substrate and transfer heat to the heat exchange core.
[0016] According to one aspect of the present application, an aerosol generating device is provided in one embodiment, comprising a main unit and an airflow heating component as described above, wherein the airflow heating component is installed on the main unit.
[0017] In an achievable implementation, the host includes a power supply device; the power supply device includes a power supply battery and a controller, and the power supply battery is used to provide electrical energy to the controller;
[0018] The airflow heating component is electrically connected to the controller, and the controller is used to control the airflow heating component to perform heating work.
[0019] According to the airflow heating component of an aerosol generating device of the above embodiment, a buffer structure is arranged on the heat exchange core, so that when the heating tube is heated, the temperature of the heat exchange core rises and expands due to the heat, and the buffer structure can just reserve an extrusion space for the heat exchange core that expands due to the heat, so that the heat exchange core that expands due to the heat will not stretch the heating tube and cause damage to the heating tube, and also avoids the occurrence of unstable contact between the heat exchange core and the heating tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A schematic cross-sectional view of the aerosol generating device provided in this embodiment;
[0021] Figure 2 A schematic diagram of the structure of the heat exchange core provided in an embodiment of the present application;
[0022] Figure 3 for Figure 2 A top view of a heat exchange core;
[0023] Figure 4 for Figure 2 A side view of the heat exchange core;
[0024] Figure 5 for Figure 2 A side view of the heat exchange core in the direction of B;
[0025] Figure 6 This is a schematic diagram of the structure of the airflow heating assembly provided in this embodiment.
[0026] Figure numerals: 10, main unit; 20, air flow heating assembly; 21, heating tube; 211, base; 212, heating circuit; 22, heat exchange core; 220, air hole; 221, buffer structure; 222, hanging ear; 223, first part; 224, second part; 30, power supply device; 40, cigarette; 50, nozzle. DETAILED DESCRIPTION
[0027] The present application 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.
[0028] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.
[0029] 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).
[0030] Combination Figure 1 and Figure 2The present embodiment provides an airflow heating component of an aerosol generating device, comprising a heating tube 21 and a heat exchange core 22. The heat exchange core 22 comprises a core body and a hanging ear 222, wherein the core body is arranged in the heating tube 21, and the outer wall of the core body is in contact with the inner wall of the heating tube 21; a plurality of through-going air holes 220 are arranged on the core body, one end of the air hole 220 is connected to the air inlet channel of the aerosol generating device, and the other end faces the direction of insertion of the aerosol generating matrix, and the core body has a buffer structure 221 arranged along the axial direction, and the buffer structure 221 is used to leave a squeezing space for the thermal expansion of the core body when the temperature rises; the hanging ear 222 is used to limit the part of the heat exchange core 22 located inside the heating tube 21.
[0031] In actual application, a cavity for inserting an aerosol generating matrix is provided in the heating tube 21, and the heating tube 21 is used to heat the aerosol generating matrix. The heat exchange core 22 is provided in the heating tube 21, specifically below the cavity for inserting the aerosol generating matrix. The heat exchange core 22 includes a core body and a hanging ear 222 that are fixedly connected, and a plurality of through pores 220 are provided on the core body, and one end of the pores 220 faces the air inlet channel of the aerosol generating device, and the other end faces the direction of insertion of the aerosol generating matrix; the hanging ear 222 is provided below the core body and outside the heating tube 21, and is used to limit the part of the heat exchange core 22 located in the heating tube 21. Specifically, the core is arranged in the heating tube 21 and is located below the cavity in the heating tube 21 for inserting the aerosol generating matrix, and a buffer structure 221 arranged axially is arranged on the core so that the outer wall of the core contacts the inner wall of the heating tube 21. Specifically, the outer diameter of the core can be slightly larger than the inner diameter of the heating tube 21. At this time, since the core of the present application is provided with a buffer structure 221, the buffer structure 221 can be used to make the outer wall of the core contact the inner wall of the heating tube 21 to ensure the efficiency of energy transfer from the heating tube 21 to the heat exchange core 22, thereby ensuring the stability of the hot air flow heating. In addition, when the heating tube 21 is heated, the temperature of the heat exchange core 22 rises and expands due to heat, and the buffer structure 221 can just reserve an extrusion space for the heat exchange core 22 that expands due to heat, so that the heat exchange core 22 that expands due to heat will not stretch the heating tube 21 and cause damage to the heating tube 21, and also avoid the unstable contact between the heat exchange core 22 and the heating tube 21. In addition, the buffer structure 221 can absorb the tolerance of the parts process to ensure the consistency of the smoking device.
[0032] As an implementation of this embodiment, the buffer structure 221 specifically includes a first groove, which opens on the upper surface and outer wall of the core body; the opening of the first groove on the upper surface of the core body is arranged radially.
[0033] Combination Figure 2-Figure 4As shown, the first groove is arranged along the radial direction of the upper surface of the core body and extends to the side walls at both ends of the radial direction. The groove depth of the first groove can be less than the height of the core body or can be equal to the height of the core body. When the core body expands due to heat, the first groove flows out of the buffer space, so that the core body can be squeezed inward, avoiding outward expansion and causing damage to the heating tube 21.
[0034] As a further improvement of this embodiment, the buffer structure 221 also includes a plurality of first grooves, each of which opens on the upper surface and outer wall of the core body and divides the core body into several parts along the longitudinal direction; a plurality of hanging ears 222 are provided, and each hanging ear 222 connects two adjacent parts of the core body.
[0035] Different from the above-mentioned embodiment, the present embodiment has a plurality of first grooves, that is, the core is divided into multiple parts by the plurality of first grooves, and then, each two adjacent core parts are connected by the hanging ears 222 to ensure that the core remains an integral structure.
[0036] Furthermore, the first groove is arranged to penetrate the core body axially and separate the core body into a first part 223 and a second part 224; the hanging ear 222 connects the first part 223 and the second part 224 of the core body, and the hanging ear 222 is located outside the heating tube 21 and is clamped at the bottom end of the heating tube 21.
[0037] In this embodiment, Figure 3 and Figure 4 As shown, the first groove is arranged along the axial direction of the core body to separate the core body into a first part 223 and a second part 224, and the first part 223 and the second part 224 are connected by a hanging ear 222. Specifically, the hanging ears 222 are respectively arranged at both ends of the first groove between the first part 223 and the second part 224, or the hanging ear 222 can be arranged at only one end (such as Figure 5 As shown). On the one hand, it can ensure that the core body is an integral structure, and on the other hand, it can also play a role in limiting the core body.
[0038] As a further improvement of this embodiment, the first part 223 and the second part 224 are respectively provided with a second groove (not shown in the figure), the depth of the second groove is less than the height of the core body, the second groove of the first part 223 opens on the upper surface and outer wall of the first part 223, and the second groove of the second part 224 opens on the upper surface and outer wall of the second part 224.
[0039] In this embodiment, in order to ensure that sufficient buffer space can be reserved for the core body to expand due to heat, second grooves can be respectively provided in the first part 223 and the second part 224 of the core body. Specifically, the second grooves are also opened on the upper surface and outer wall of the first part 223 or the second part 224. Different from the first grooves, the second grooves of this embodiment can be opened in any straight line direction on the upper surface of the core body, and the groove depth of the second grooves is less than the height of the core body. Such a configuration ensures that the core body is an integral structure.
[0040] Furthermore, the core is made of aluminum alloy or copper. Since aluminum alloy or copper has high thermal conductivity and high temperature resistance, it can be heated quickly and dissipate heat evenly. Therefore, the core of this embodiment is made of aluminum alloy or copper. In addition, the core can also be made of ceramic or graphite, as long as it meets the above performance requirements.
[0041] As a further improvement of this embodiment, the heating tube 21 includes a base 211 and a heating circuit 212 arranged on the outer surface of the base 211 ; the heating circuit 212 is used to heat the base 211 and transfer heat to the heat exchange core 22 .
[0042] Specifically, the heating pipe 21 includes a base 211 and a heating circuit 212, wherein the base 211 is configured as a tubular hollow structure, and the base 211 is made of a heat-conducting metal material or a carbon fiber material. Figure 6 As shown, the heating circuit 212 is arranged on the outer surface of the substrate 211, and can be wound around the outer surface of the substrate 211, for heating the substrate 211 and transferring heat to the heat exchange core 22 to heat the air inside the heating tube. Furthermore, the heating circuit 212 of this embodiment can also be replaced by heating wire heating (specifically replacing the heating circuit with a heating wire), electromagnetic induction heating (specifically setting the substrate as a magnetic core and replacing the heating circuit with a coil) or infrared coating heating (adding a coating on the surface of the substrate and heating the substrate by infrared heating), etc., and the above heating methods are all within the protection scope of this application.
[0043] like Figure 1 As shown, an aerosol generating device provided in this embodiment includes a main unit 10 and the airflow heating component 20 as described above, and the airflow heating component 20 is installed on the main unit 10.
[0044] The aerosol generating device of this embodiment includes a main unit 10 and an airflow heating component 20 installed on the main unit 10. Specifically, the airflow heating component 20 adopts the airflow heating component 20 described in the above embodiment, and this embodiment will not be described in detail here.
[0045] Specifically, the host 10 includes a power supply device 30; the power supply device 30 includes a power supply battery and a controller, and the power supply battery is used to provide power to the controller; the airflow heating component 20 is electrically connected to the controller, and the controller is used to control the airflow heating component 20 to perform heating work.
[0046] When working, after receiving the heating signal, the controller controls the airflow heating component 20 to start, and the heating tube 21 starts to heat the aerosol generating substrate (specifically, the cigarette 40) to generate aerosol. By adopting the aerosol generating device and the airflow heating component 20 of this embodiment, the thermal resistance can be reduced during the heating process, ensuring that the temperature of the hot air flow is sufficient, thereby providing a better user experience.
[0047] 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. An airflow heating assembly of an aerosol generating device, characterized in that: Including heating tube and heat exchange core; The heat exchange core comprises a core body and a hanging ear, wherein the core body is arranged in the heating tube, and the outer wall of the core body contacts the inner wall of the heating tube; a plurality of through pores are arranged in the core body, one end of the pores is connected to the air inlet channel of the aerosol generating device, and the other end faces the direction of the aerosol generating substrate insertion, and the core body has a buffer structure arranged in the axial direction, and the buffer structure is used to leave a squeezing space for the thermal expansion of the core body when the temperature rises; The hanging ear is used to limit the portion of the heat exchange core located in the heating tube.
2. The airflow heating assembly according to claim 1, characterized in that: The buffer structure comprises a first groove, which is open to the upper surface and the outer wall of the core; The opening of the first groove on the upper surface of the core is arranged in the radial direction.
3. The airflow heating assembly according to claim 2, characterized in that: The first groove is arranged to penetrate the core body along the axial direction and divide the core body into a first part and a second part; The hanging ear connects the first part and the second part of the core, and the hanging ear is located outside the heating tube and is clamped at the bottom end of the heating tube.
4. The airflow heating assembly according to claim 1, characterized in that: The outer diameter of the core is greater than the inner diameter of the heating tube.
5. The airflow heating assembly according to claim 3, characterized in that: The first part and the second part are respectively provided with a second groove, the depth of the second groove is less than the height of the core body, the second groove of the first part opens to the upper surface and outer wall of the first part, and the second groove of the second part opens to the upper surface and outer wall of the second part.
6. The airflow heating assembly according to claim 1, characterized in that: The buffer structure includes a plurality of first grooves, each of which opens on the upper surface and the outer wall of the core body and divides the core body into a plurality of parts along the longitudinal direction; A plurality of the hanging ears are provided, and each of the hanging ears connects two adjacent parts of the core body.
7. The airflow heating assembly according to claim 1, characterized in that: The core is made of aluminum alloy or copper.
8. The airflow heating assembly according to claim 1, characterized in that: The heating pipe comprises a base body and a heating circuit arranged on the outer surface of the base body; the heating circuit is used for heating the base body and transferring heat to the heat exchange core.
9. An aerosol generating device, characterized in that: It comprises a main unit and an airflow heating component as described in any one of claims 1 to 8, wherein the airflow heating component is installed on the main unit.
10. The aerosol generating device according to claim 9, characterized in that The host comprises a power supply device; The power supply device comprises a power supply battery and a controller, wherein the power supply battery is used to provide electrical energy to the controller; The airflow heating component is electrically connected to the controller, and the controller is used to control the airflow heating component to perform heating work.