Preparation method of heating module, heating module and electronic smoking set

Abstract

The invention provides a preparation method of a heating module, the heating module and an electronic smoking set, and the preparation method of the heating module comprises the steps: providing an insulating layer which is provided with a first surface and a second surface opposite to each other in the thickness direction; providing an electromagnetic wave radiation assembly, and arranging the electromagnetic wave radiation assembly on the first surface; and the insulating layer and the electromagnetic wave radiation assembly are wound together, so that the electromagnetic wave radiation assembly forms a spiral antenna structure, and the spiral antenna structure forms an electromagnetic resonant cavity. The preparation method of the heating module can effectively reduce the volume of the heating module and improve the mechanical reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic smoking devices, and in particular to a method for preparing a heating module, a heating module and an electronic smoking device. Background Art

[0002] In the field of electronic cigarette technology, microwave heating technology is widely used due to its advantages such as rapid heating and high energy utilization. The current mainstream microwave heating module relies on a waveguide structure to transmit electromagnetic waves, but the introduction of waveguide components increases the lateral size of the module, which seriously hinders the miniaturization design of electronic cigarettes. To solve the above problems, the industry has tried to adopt a waveguide-free microwave heating solution, which achieves electromagnetic coupling by directly integrating electromagnetic wave radiation components (such as transmission antennas) into the resonant cavity.

[0003] However, the electromagnetic wave radiation component described in the prior art is usually fixed inside the resonant cavity in the form of an independent metal component. The rigidly arranged electromagnetic wave radiation component is susceptible to mechanical stress when the cigarette cartridge is plugged in or the device falls, and there is a risk of structural fracture, which seriously affects product reliability. Summary of the invention

[0004] The embodiments of the present application provide a method for preparing a heating module, a heating module, and an electronic smoking device, which can effectively reduce the volume of the heating module and improve the mechanical reliability.

[0005] The present application provides a method for preparing a heating module, comprising:

[0006] Providing an insulating layer, the insulating layer having a first surface and a second surface opposite to each other in a thickness direction;

[0007] Providing an electromagnetic wave radiation component, and arranging the electromagnetic wave radiation component on the first surface;

[0008] The insulating layer and the electromagnetic wave radiation component are wound together so that the electromagnetic wave radiation component forms a helical antenna structure, and the helical antenna structure constitutes an electromagnetic resonance cavity.

[0009] In some embodiments, the insulating layer and the electromagnetic wave radiation component are wound together, including: the insulating layer has a first side and a second side along the length direction; the first side of the insulating layer is wound toward the second surface so that at least a portion of the second surface of the insulating layer is in contact with the first surface.

[0010] In some embodiments, the electromagnetic wave radiation component includes an antenna radiation segment, and disposing the electromagnetic wave radiation component on the first surface includes: disposing the antenna radiation segment on the first surface of the insulation layer at an angle relative to the length direction of the insulation layer.

[0011] In some embodiments, after providing the electromagnetic wave radiation component, it also includes: determining the number of antenna coils of the helical antenna structure, and adjusting the inclination angle between the antenna radiation section and the length direction of the insulating layer so that the electromagnetic wave radiation component after winding forms a helical antenna structure corresponding to the number of antenna coils.

[0012] In some embodiments, after providing the electromagnetic wave radiation component, it also includes: determining the number of antenna coils of the helical antenna structure, and cutting the length of the antenna radiation section so that the electromagnetic wave radiation component after winding forms a helical antenna structure corresponding to the number of antenna coils.

[0013] In some embodiments, the antenna radiating section includes a first sub-antenna radiating section and a second sub-antenna radiating section, and the first sub-antenna radiating section is arranged in parallel with the second sub-antenna radiating section.

[0014] In some embodiments, before winding the insulating layer and the electromagnetic wave radiation component together, it also includes: coating a thermosetting adhesive on the second surface of the insulating layer; after winding the insulating layer and the electromagnetic wave radiation component together, it also includes: hot pressing the insulating layer and the electromagnetic wave radiation component to cure the thermosetting adhesive.

[0015] In some embodiments, before the electromagnetic wave radiation component is disposed on the first surface, the method further includes: performing micro-etching on the surface of the electromagnetic wave radiation component.

[0016] The present application also provides a heating module, including:

[0017] An insulating layer, wherein the insulating layer has a first surface and a second surface opposite to each other in a thickness direction;

[0018] an electromagnetic wave radiation component, wherein the electromagnetic wave radiation component is disposed on the first surface;

[0019] The insulating layer and the electromagnetic wave radiation component are wound together to form a helical antenna structure, and the helical antenna structure constitutes an electromagnetic resonant cavity.

[0020] The present application also provides an electronic smoking device, including:

[0021] A heating module, wherein the heating module is the above-mentioned heating module;

[0022] An electromagnetic shielding shell, wherein the electromagnetic shielding shell is sleeved on the outer side of the heating module;

[0023] A first fixing member, wherein the first fixing member is arranged at one end of the electromagnetic shielding shell;

[0024] a second fixing member, the second fixing member being arranged at the other end of the electromagnetic shielding shell;

[0025] Wherein, the heating module is fixedly connected to the first fixing member and / or the second fixing member.

[0026] The embodiment of the present application provides a heating module, a method for preparing the heating module, and an electronic cigarette device. Among them, the method for preparing the heating module has significant advantages. It forms a spiral antenna structure by winding the electromagnetic wave radiation component and the insulating layer together, and the structure constitutes an electromagnetic resonant cavity. Unlike traditional microwave heating modules, traditional modules rely on waveguide structures to transmit electromagnetic waves, while this solution adopts a spiral antenna structure, directly integrating electromagnetic radiation and resonance functions, eliminating the need for independent waveguide components. This innovative design reduces the lateral size of the module and can better adapt to the development needs of miniaturization of electronic cigarette devices. In addition, the flexible winding process adopted in this solution enables the electromagnetic wave radiation component and the insulating layer to form an integrated structure. In the case of plugging and unplugging the cigarette cartridge or falling of the device, the mechanical stress can be dispersed by deformation between the winding layers. Compared with traditional rigid antennas, the impact resistance of this structure has been effectively improved, and the fracture rate has been significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0028] Figure 1 A schematic flow chart of a method for preparing a heating module provided in an embodiment of the present application.

[0029] Figure 2 A schematic diagram of the process steps corresponding to the method for preparing the heating module provided in an embodiment of the present application.

[0030] Figure 3 A schematic diagram of the structure of the heating module provided in an embodiment of the present application.

[0031] Figure 4 A schematic diagram of the first structure of the electromagnetic wave radiation component provided in an embodiment of the present application.

[0032] Figure 5 A second structural schematic diagram of the electromagnetic wave radiation component provided in an embodiment of the present application.

[0033] Figure 6 A third structural schematic diagram of the electromagnetic wave radiation component provided in an embodiment of the present application.

[0034] Figure 7 A fourth structural schematic diagram of the electromagnetic wave radiation component provided in an embodiment of the present application.

[0035] Figure 8 A first circuit diagram of a heating module provided in an embodiment of the present application.

[0036] Fig. 9 This is a schematic diagram of the first structure of the electronic smoking device provided in the embodiment of the present application.

[0037] Fig.10 for Fig. 9 Explosion diagram.

[0038] Fig.11 A second circuit diagram of the heating module provided in an embodiment of the present application.

[0039] Fig.12 This is a schematic diagram of the second structure of the electronic smoking device provided in the embodiment of the present application.

[0040] Fig.13 This is a third structural schematic diagram of the electronic smoking device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0042] The embodiments of the present application provide a method for preparing a heating module, a heating module, and an electronic cigarette device, which can effectively reduce the volume of the heating module and improve the mechanical reliability. Detailed description is given below in conjunction with the accompanying drawings.

[0043] See also Figure 1 as well as Figure 2 , Figure 1 A schematic diagram of a process for preparing a heating module provided in an embodiment of the present application. Figure 2 A schematic diagram of the process steps corresponding to the method for preparing the heating module provided in an embodiment of the present application.

[0044] The embodiment of the present application provides a method for preparing a heating module 10 . The method for preparing the heating module 10 includes the following steps.

[0045] S1. Provide an insulating layer 11, wherein the insulating layer 11 has a first surface and a second surface opposite to each other along a thickness direction.

[0046] The insulating layer 11 is a non-conductive material layer used to isolate and protect the conductive parts in the circuit to prevent current leakage, short circuit or contamination, while providing stable mechanical support to ensure the smooth progress of subsequent processes.

[0047] The insulating layer may be made of a PI (Polyimide) film. The PI film has a low dielectric constant (about 4), and microwaves have a small loss when passing through the PI film, so that the heating efficiency of the heating module 10 is high.

[0048] S2. Provide an electromagnetic wave radiation component 12.

[0049] The electromagnetic wave radiation component 12 is a device for transmitting or receiving electromagnetic waves, and is usually made of a conductive material, such as a metal wire or a metal foil. When the electromagnetic wave radiation component 12 is a metal foil, the thickness of the electromagnetic wave radiation component 12 may be 0.01 mm to 0.1 mm.

[0050] The electromagnetic wave radiation component 12 is a combination of components that can generate microwave radiation. In the present heating module 10, the electromagnetic wave radiation component 12 is responsible for generating microwaves, the frequency band of which is between 1 GHz and 30 GHz, including but not limited to 2.45 GHz and 915 MHz. The purpose of heating is achieved through the interaction between microwaves and the smoking material. The water molecules in the smoking material will vibrate violently in the microwave high-frequency electromagnetic field through high-frequency electromagnetic waves, and the molecular friction is converted into heat energy to heat the smoking material. The advantage of this technology is that as long as there are water molecules in the object, it can be heated, reducing the heat loss of heat absorption and heat transfer of traditional heating elements (conduction heating), and has the advantages of fast heating speed, high efficiency and low heat loss.

[0051] S3. Dispose the electromagnetic wave radiation component 12 on the first surface.

[0052] The electromagnetic wave radiation component 12 can be adhered to the first surface.

[0053] S4, winding the insulating layer 11 and the electromagnetic wave radiation component 12 together, so that the electromagnetic wave radiation component 12 forms a helical antenna structure 120, and the helical antenna structure 120 constitutes an electromagnetic resonant cavity 121,

[0054] See also Figure 3 , Figure 3 The heating module 10 is a schematic diagram of the structure of the heating module provided in the embodiment of the present application. The insulating layer 11 and the electromagnetic wave radiation component 12 together constitute the heating module 10.

[0055] See also Figure 4 as well as Figure 5 , Figure 4 A schematic diagram of the first structure of the electromagnetic wave radiation component provided in the embodiment of the present application, Figure 5A second structural schematic diagram of the electromagnetic wave radiation component provided in an embodiment of the present application.

[0056] Please continue reading Figure 3 The wound insulating layer 11 has a receiving cavity. The inner surface of the receiving cavity 111 is smooth and easy to clean. The receiving cavity 111 is used to receive the smoking material. The receiving cavity 111 provides a relatively stable heating environment for the smoking material. The smoking material is a substance that can generate aerosol when heated, usually containing tobacco or other plant components. After heating, it releases aerosol containing flavor components and nicotine and other substances for users to use.

[0057] The electromagnetic wave radiation component 12 and the insulating layer 11 are wound together to form a helical antenna structure 120, and the electromagnetic wave radiation component 12 is sandwiched in the insulating layer 11. In this co-winding process, the insulating layer 11 not only serves as a supporting structure, but also ensures the smooth winding through its flexibility and mechanical strength. The helical antenna structure 120 itself constitutes an electromagnetic resonant cavity 121 for storing and converting electromagnetic energy. By accurately controlling the number of winding turns, spacing, angle and other parameters, the performance of the helical antenna structure 120 can be optimized, and the heating efficiency and stability of the heating module 10 can be improved.

[0058] The helical antenna structure 120 is a type of antenna whose conductor is wound in a helical shape. This structure can effectively radiate and receive electromagnetic waves and has good directivity and gain.

[0059] The electromagnetic resonant cavity 121 is a device that can store electromagnetic energy and resonate at a specific frequency. It is surrounded by conductive walls or conductive surfaces. When electromagnetic waves propagate in the cavity, they are reflected on the cavity walls and form standing waves, thereby achieving energy storage and amplification. In the present application, the helical antenna structure 120 itself constitutes the electromagnetic resonant cavity 121, which is used for electromagnetic energy storage and conversion in the heating module 10.

[0060] The preparation method of the heating module 10 provided in the embodiment of the present application has significant advantages. By winding the electromagnetic wave radiation component 12 and the insulating layer 11 together, a spiral antenna structure 120 is formed, and the structure constitutes an electromagnetic resonant cavity 121. The process is simple, easy and efficient. Unlike the traditional microwave heating module 10, the traditional module relies on a waveguide structure to transmit electromagnetic waves, while the present solution adopts a spiral antenna structure 120, which directly integrates electromagnetic radiation and resonance functions, eliminating the need for an independent waveguide component. This innovative design reduces the lateral size of the module and can better adapt to the development needs of the miniaturization of the electronic cigarette device 100. In addition, the flexible winding process adopted in the present solution enables the electromagnetic wave radiation component 12 and the insulating layer 11 to form an integrated structure. In the case of plugging and unplugging the cigarette cartridge or the device falling, the mechanical stress can be dispersed by deformation between the winding layers. Compared with the traditional rigid antenna, the impact resistance of this structure has been effectively improved, and the fracture rate has been significantly reduced.

[0061] In some embodiments, the insulating layer 11 has a first side and a second side along the length direction, and the first side and the second side are two boundaries of the insulating layer 11 along the length direction. During the winding process, the first side is used as the starting side to start winding, and the second side gradually fits with other parts of the insulating layer 11 as the winding proceeds, and finally forms a helical antenna structure 120. In the step of winding the insulating layer 11 and the electromagnetic wave radiation component 12 together, the preparation method of the heating module 10 includes: winding the first side of the insulating layer 11 toward the second surface, so that at least part of the second surface of the insulating layer 11 fits with the first surface to form a tight structure, which helps to improve the stability and performance of the helical antenna structure 120.

[0062] It is understandable that the diameter of each turn of the wound helical antenna structure 120 increases turn by turn to form a conical helical antenna. This is due to the increasing characteristic of the diameter of each turn during the winding process, and the increase in the diameter of each turn is exactly equal to the thickness of the insulating layer 11.

[0063] In the winding operation, the first side of the insulating layer 11 is used as the starting side, and the winding is performed along the length direction of the insulating layer 11. As the winding proceeds, the second surface of the insulating layer 11 gradually fits with the first surface, and the antenna radiation section 122 is wrapped inside the insulating layer 11 as it is wound, forming a spiral shape. Since the insulating layer 11 has a certain thickness, each winding will increase the diameter of the spiral compared to the previous turn, and the increase is the thickness of the insulating layer 11. Therefore, the entire helical antenna structure 120 presents a cone shape, that is, a conical spiral antenna.

[0064] The conical spiral antenna has a high structural stability. Since the coils are tightly fitted through the insulating layer 11 and the diameter increases in a clear pattern, the entire antenna structure can maintain good stability when subjected to external forces and is not easily deformed or damaged. The conical spiral antenna also has good broadband characteristics. Due to its structural particularity and the distribution characteristics of electromagnetic waves, the conical spiral antenna can maintain good performance in a wide frequency range.

[0065] The electromagnetic wave radiation component 12 includes an antenna radiation section 122, which is a long strip structure and is the core part for realizing electromagnetic wave radiation and reception. The antenna radiation section 122 can be a strip conductor, such as Figure 4 , or round wire, such as Figure 5 In the step of disposing the electromagnetic wave radiation component 12 on the first surface, the preparation method of the heating module 10 includes: disposing the antenna radiation section 122 on the first surface of the insulating layer 11 at an angle relative to the length direction of the insulating layer 11, which can optimize the parameters of the helical antenna structure 120 and improve the heating efficiency and stability of the heating module 10.

[0066] After the step of providing the electromagnetic wave radiation component 12, the preparation method of the heating module 10 also includes: determining the number of antenna coils of the helical antenna structure 120, and adjusting the inclination angle of the antenna radiation section 122 and the insulating layer 11 in the length direction so that the electromagnetic wave radiation component 12 after winding forms a helical antenna structure 120 with a corresponding number of antenna coils.

[0067] By adjusting the angle between the antenna radiation section 122 and the length direction of the insulating layer 11, the pitch, number of turns and overall spatial layout of the helical antenna structure 120 can be finely controlled. Changes in these parameters directly affect the radiation pattern, directivity and gain characteristics of the helical antenna structure 120 to electromagnetic waves. Specifically, a proper tilt angle can enable the helical antenna structure 120 to form a more concentrated radiation beam at a specific frequency, thereby improving the efficiency of energy transmission; at the same time, the optimized helical antenna structure 120 can also enhance its resistance to external electromagnetic interference and improve the stability of the heating module 10.

[0068] After the step of providing the electromagnetic wave radiation component 12, the preparation method of the heating module 10 further includes: determining the number of antenna coils of the helical antenna structure 120, and cutting the length of the antenna radiation section 122 so that the electromagnetic wave radiation component 12 after winding forms a helical antenna structure 120 with a corresponding number of antenna coils. The antenna radiation section 122 is the core part of electromagnetic wave radiation and reception, and its length directly determines the number of coils and tightness of the helical antenna structure 120 formed after winding.

[0069] By precisely controlling the number of antenna coils, the electromagnetic radiation and receiving performance of the helical antenna structure 120 can be optimized, and the heating efficiency of the heating module 10 can be improved. When the number of coils of the helical antenna structure 120 is moderate, the helical antenna structure 120 has the best heating efficiency and stability. This is because the appropriate number of antenna coils can make the electromagnetic waves form effective standing waves in the helical antenna structure 120, thereby improving the energy conversion efficiency.

[0070] Please continue Figure 6 as well as Figure 7 , Figure 6 A third structural schematic diagram of the electromagnetic wave radiation component provided in an embodiment of the present application, Figure 7 A fourth structural schematic diagram of the electromagnetic wave radiation component provided in an embodiment of the present application.

[0071] The antenna radiation section 122 includes a first sub-antenna radiation section 1221 and a second sub-antenna radiation section 1222. The first sub-antenna radiation section 1221 and the second sub-antenna radiation section 1222 are arranged in parallel, which can enhance the radiation efficiency and directivity of electromagnetic waves. The parallel arrangement can ensure that the electromagnetic waves maintain a consistent phase and amplitude during the radiation process, reduce energy loss and scattering, and thus improve the overall performance of the heating module 10. The segmented arrangement of the first sub-antenna radiation section 1221 and the second sub-antenna radiation section 1222 can also effectively disperse stress.

[0072] Before the step of winding the insulating layer 11 and the electromagnetic wave radiation component 12 together, the preparation method of the heating module 10 also includes: coating a thermosetting adhesive on the second surface of the insulating layer 11. Thermosetting adhesive is a material that solidifies and produces strong bonding force after heating. In the preparation process of the heating module 10, the thermosetting adhesive is coated on the second surface of the insulating layer 11, which is used to firmly bond the insulating layer 11 and the electromagnetic wave radiation component 12 together during the winding and subsequent hot pressing molding process, thereby improving the stability and reliability of the heating module 10. After the step of winding the insulating layer 11 and the electromagnetic wave radiation component 12 together, it also includes: hot pressing the insulating layer 11 and the electromagnetic wave radiation component 12 so that the thermosetting adhesive is cured, which can improve the mechanical strength of the insulating layer 11 and further enhance the stability and consistency of the insulating layer 11 after winding. Since the electromagnetic wave radiation component 12 is arranged between the insulating layers 11, after hot pressing molding, the supporting effect of the insulating layer 11 on the electromagnetic wave radiation component 12 can be improved.

[0073] Accordingly, before the step of winding the insulating layer 11 and the electromagnetic wave radiation component 12 together, the method for preparing the heating module 10 further includes: coating a thermosetting adhesive on the first surface of the insulating layer 11, and bonding the electromagnetic wave radiation component 12 to the insulating layer by the thermosetting adhesive. Subsequently, the insulating layer 11 and the electromagnetic wave radiation component 12 are thermoformed, so that the thermosetting adhesive on the first surface and / or the second surface of the insulating layer 11 is cured, further enhancing the bonding force between the insulating layer 11 and the electromagnetic wave radiation component 12, and improving the stability and consistency of the heating module 10.

[0074] Before the step of setting the electromagnetic wave radiation component 12 on the first surface, the preparation method of the heating module 10 also includes: micro-etching the surface of the electromagnetic wave radiation component 12 so that the surface roughness of the electromagnetic wave radiation component 12 is between 0.8μm and 1.6μm. For example, the surface roughness can be 0.8μm, 1μm, 1.2μm, 1.4μm or 1.6μm, etc. Micro-etching is a surface treatment technology that forms tiny concave-convex structures on the surface of the material through chemical or physical methods, thereby changing the roughness of the surface of the material. Surface roughness refers to the degree of tiny unevenness on the surface of the material, usually expressed by specific parameters (such as Ra value). The electromagnetic wave radiation component 12 has a certain surface roughness and can also enhance the bonding force between the electromagnetic wave radiation component 12 and the insulating layer 11, ensuring that the component will not fall off or shift during the subsequent winding and hot pressing process.

[0075] Please continue reading Figure 3 The embodiment of the present application also provides a heating module 10, which is a device module for heating a specific substance (such as a smoking material). The heating module 10 can be applied to an electronic cigarette device 100, and the heating module 10 heats the smoking material to generate an aerosol that can be inhaled by the user. The heating module 10 can be prepared or obtained by the method of preparing the heating module 10 in the above embodiment.

[0076] The heating module 10 includes an insulating layer 11 and an electromagnetic wave radiation component 12 .

[0077] The insulating layer 11 is a component with good insulating properties. In the heating module 10 of the embodiment of the present application, the insulating layer 11 mainly supports and contains the smoke-generating material, and prevents unnecessary electrical connection or interference between the electromagnetic wave radiation component 12 and the smoke-generating material. The insulating layer 11 can be wound by a film layer structure, which has the characteristics of insulation, high temperature resistance and low dielectric constant. The insulating layer 11 can be made of PI film. Microwaves pass through the PI film with low loss and high efficiency.

[0078] The electromagnetic wave radiation component 12 is a combination of components that can generate microwave radiation. In the present heating module 10, the electromagnetic wave radiation component 12 is responsible for generating microwaves, the frequency band of which is between 1 GHz and 30 GHz, including but not limited to 2.45 GHz and 915 MHz. The purpose of heating is achieved through the interaction between microwaves and the smoking material. The water molecules in the smoking material will vibrate violently in the microwave high-frequency electromagnetic field through high-frequency electromagnetic waves, and the molecular friction is converted into heat energy to heat the smoking material. The advantage of this technology is that as long as there are water molecules in the object, it can be heated, reducing the heat loss of heat absorption and heat transfer of traditional heating elements (conduction heating), and has the advantages of fast heating speed, high efficiency and low heat loss.

[0079] Please continue reading Figures 4 to 7 The insulating layer 11 has a first surface and a second surface opposite to each other along the thickness direction. The electromagnetic wave radiation component 12 is arranged on the first surface. The insulating layer 11 and the electromagnetic wave radiation component 12 are wound together to form a helical antenna structure 120, and the helical antenna structure 120 constitutes an electromagnetic resonant cavity 121.

[0080] The electromagnetic wave radiation component 12 includes an antenna radiation section 122, which is a long strip structure and is the core part for realizing electromagnetic wave radiation and reception. The antenna radiation section 122 can be a strip conductor, such as Figure 4 and Figure 6 , or round wire, such as Figure 5 and Figure 7 .

[0081] At the same time, the insulating layer 11 is wound to form a accommodating cavity 111. The inner surface of the accommodating cavity 111 is smooth and easy to clean. The accommodating cavity 111 is used to accommodate the smoking material, and the accommodating cavity 111 provides a relatively stable heating environment for the smoking material. The smoking material is a substance that can produce aerosols when heated, usually containing tobacco or other plant components, and after heating, releases aerosols containing flavor components and nicotine and other substances for users to use. The helical antenna structure 120 is wrapped by the insulating layer 11 and isolated from the smoking material, fundamentally blocking the aerosol residue from adhering to the surface of the electromagnetic wave radiation component 12. At the same time, since microwaves can directly act on the smoking material, the energy loss during the transmission process is reduced, further improving the heating effect.

[0082] See also Figure 8 , Figure 8The first circuit diagram of the heating module provided in the embodiment of the present application. The heating module 10 also includes a power supply 15, a voltage regulating circuit 16 and a radio frequency chip 17, and the components cooperate to realize the conversion and precise control of electrical energy to thermal energy. The power supply 15 uses a lithium battery to power the voltage regulating circuit 16 and the radio frequency chip 17. The voltage regulating circuit 16 can flexibly adjust the output voltage according to the signal of the radio frequency chip 17 to change the heating power. The radio frequency chip 17 can convert direct current into microwaves and can also be intelligently controlled according to temperature feedback.

[0083] In some embodiments, please refer to Figure 3 The heating module 10 also includes a pin 14, one end of which is tightly connected to the electromagnetic wave radiation component 12 to ensure stable transmission of electrical signals and energy from the electromagnetic wave radiation component 12; and the other end is exposed at the edge of the insulating layer 11. Such a layout is convenient for connection with external circuits or other devices, and can also prevent the pin 14 from being interfered by the complex electromagnetic environment inside the insulating layer 11 to a certain extent.

[0084] Pin 14 enables the heating module 10 to achieve electrical connection and signal interaction more conveniently and efficiently when working in coordination with other components, providing a strong guarantee for the stable operation and performance of the coordinated work, and also greatly facilitating the installation, debugging and maintenance of the heating module 10.

[0085] The heating module 10 provided in the embodiment of the present application can reduce the risk of the electromagnetic wave radiation component 12 being contaminated and broken. In the existing design of the heating module 10, the electromagnetic wave radiation component 12 is often in direct contact with the smoke-generating material or is close to it, which easily causes the electromagnetic wave radiation component 12 to be contaminated by impurities, moisture, etc. in the smoke-generating material, thereby affecting its performance and service life. In the heating module 10 of the embodiment of the present application, the insulating layer 11 separates the electromagnetic wave radiation component 12 from the smoke-generating material, effectively avoiding direct contact, and greatly reducing the possibility of the electromagnetic wave radiation component 12 being contaminated. In addition, in some traditional heating modules 10, the structure of the electromagnetic wave radiation component 12 is relatively fragile and is easily broken by external forces. In the heating module 10 of the embodiment of the present application, the electromagnetic wave radiation component 12 is surrounded by the outer surface of the insulating layer 11 to form an electromagnetic resonant cavity 121. This structure better protects the electromagnetic wave radiation component 12 and reduces the risk of being broken by external forces.

[0086] See also Fig. 9 as well as Fig.10 , Fig. 9 This is a schematic diagram of the first structure of the electronic cigarette device provided in the embodiment of the present application. Fig.10 for Fig. 9 Explosion diagram.

[0087] The embodiment of the present application further provides an electronic smoking device 100 , which is a device that imitates a traditional cigarette and generates aerosol for a user to inhale by electronically heating a smoking material.

[0088] The electronic smoking device 100 includes the heating module 10 , the electromagnetic shielding shell 20 , the first fixing member 30 and the second fixing member 40 in the above embodiment.

[0089] The heating module 10 is the core heating component of the electronic smoking device 100, which is responsible for converting electrical energy into thermal energy to heat the smoking material. Its performance directly affects the heating efficiency, uniformity and stability of the electronic smoking device 100.

[0090] The electromagnetic shielding shell 20 is sleeved on the outside of the heating module 10, and the length of the electromagnetic shielding shell 20 is greater than the length of the electromagnetic wave radiation component 12. The electromagnetic shielding shell 20 is a shell made of metal or other conductive materials sleeved on the outside of the heating module 10, and the electromagnetic shielding shell 20 is grounded. The main function of the electromagnetic shielding shell 20 is to effectively shield the electromagnetic radiation generated by the heating module 10 when it is working, and minimize the interference to the human body and surrounding electronic equipment; on the other hand, it can also provide certain protection for the heating module 10 to prevent it from being physically damaged by the outside.

[0091] In the design of the electronic cigarette device 100, the electromagnetic shielding shell 20 and the heating module 10 are arranged in a spaced manner. Specifically, a certain space is left between the electromagnetic shielding shell 20 and the electromagnetic wave radiation component 12 or the heat insulation of the heating module 10, forming an air layer, which brings a significant heat insulation effect.

[0092] The air layer can effectively prevent the heat generated by the heating module 10 during operation from being transferred to the electromagnetic shielding shell 20. Since the heating module 10 generates a relatively high temperature during operation, if it is not effectively insulated, the heat can be easily transferred to the shell of the electronic cigarette device 100, causing the shell to become hot, affecting the user's experience, and even causing safety hazards due to being hot.

[0093] See also Fig.11 , Fig.11 A second circuit diagram of the heating module provided in an embodiment of the present application.

[0094] In the application of the electronic cigarette device 100, the electromagnetic resonant cavity 121 converts microwaves into heat energy to atomize the smoking material. A temperature sensor 18 is provided in the electromagnetic resonant cavity 121 to sense the temperature in real time and transmit the signal to the radio frequency chip 17. The radio frequency chip 17 uses adaptive PWM modulation technology to adjust the PWM signal pulse width according to the difference between the temperature and the set value, control the voltage regulation circuit 16 to change the output voltage, and then accurately regulate the microwave pulse power output, so that the heating temperature of the electronic cigarette device 100 is stable within the set range.

[0095] When the heating module 10 is working, the power supply 15 supplies power to the RF chip 17, and the RF chip 17 controls the voltage regulating circuit 16 to generate high-frequency alternating current. The current is transmitted through the electromagnetic wave radiation component 12 and generates microwaves, which heat the smoking material after passing through the insulating layer 11. When the microwaves continue to propagate and hit the electromagnetic shielding shell 20, they will be reflected back and thus confined in the electromagnetic resonant cavity 121, achieving all-round continuous heating of the smoking material, ensuring the heating effect and stability.

[0096] Please continue reading Fig. 9 , Fig.12 as well as Fig.13 , Fig.12 This is a schematic diagram of the second structure of the electronic cigarette provided in the embodiment of the present application. Fig.13 This is a third structural schematic diagram of the electronic smoking device provided in the embodiment of the present application.

[0097] The first fixing member 30 may be an upper structural member, also known as an end cap. The material of the first fixing member 30 may be a high temperature resistant insulating material. The first fixing member 30 may be used to connect and fix smoking materials such as cigarettes, and to fix other structures of the electronic cigarette device 100. The first fixing member 30 is a component provided at one end of the electromagnetic shielding shell 20, and is used to fix the heating module 10. The first fixing member 30 and the heating module 10 are stably connected through a specific connection method, ensuring that the position of the heating module 10 in the electronic cigarette device 100 is fixed, and ensuring the normal operation of the electronic cigarette device 100.

[0098] The second fixing member 40 is a component disposed at the other end of the electromagnetic shielding housing 20, and also serves to fix the heating module 10. It cooperates with the first fixing member 30 to jointly ensure the stability of the heating module 10 in the electromagnetic shielding housing 20. The second fixing member 40 can be a lower structural member, also known as a base. The material of the second fixing member 40 can be a high temperature resistant insulating material. The second fixing member 40 can be used to fix other structures of the electronic smoking device 100.

[0099] The first fixing member 30 is disposed at one end of the electromagnetic shielding shell 20; the second fixing member 40 is disposed at the other end of the electromagnetic shielding shell 20. The heating module 10 is fixedly connected to the first fixing member 30 and / or the second fixing member 40. A stable connection relationship is formed between the first fixing member 30 and the second fixing member 40 and the heating module 10, ensuring that the heating module 10 is always in the correct position in the electronic smoking device 100, thereby ensuring the normal operation of the electronic smoking device 100.

[0100] The first fixing member 30 and the second fixing member 40 are respectively arranged at both ends of the electromagnetic shielding shell 20, and form a stable connection relationship with the heating module 10. Compared with single-end fixing, this design of fixing at both ends can provide stronger support and stability, reduce the vibration and displacement of the heating module 10 during operation, and thus improve the accuracy and stability of heating.

[0101] Please continue reading Fig. 9 , Fig.10 , Fig.12 as well as Fig.13 The heating module 10 includes an insulating layer 11 and an electromagnetic wave radiation component 12 .

[0102] The insulating layer 11 is a component with good insulating properties. In the heating module 10 of the embodiment of the present application, the insulating layer 11 mainly supports and contains the smoke-generating material, and prevents unnecessary electrical connection or interference between the electromagnetic wave radiation component 12 and the smoke-generating material. The insulating layer 11 can be wound by a film layer structure, which has the characteristics of insulation, high temperature resistance and low dielectric constant.

[0103] exist Fig.12 as well as Fig.13 In order to facilitate understanding of the internal structure of the heating module 10, the insulating layer 11 is hidden. The electromagnetic wave radiation component 12 is a combination of components that can generate microwave radiation. In the present heating module 10, the electromagnetic wave radiation component 12 is responsible for generating microwaves, and the frequency band of the microwaves is between 1 GHz and 30 GHz, including but not limited to 2.45 GHz and 915 MHz. The purpose of heating is achieved through the interaction between microwaves and the smoking material. The water molecules in the smoking material will vibrate violently in the microwave high-frequency electromagnetic field through high-frequency electromagnetic waves, and the molecular friction is converted into heat energy to heat the smoking material. The advantage of this technology is that as long as there are water molecules in the object, it can be heated, reducing the heat loss of heat absorption and heat transfer of traditional heating elements (conduction heating), and has the advantages of fast heating speed, high efficiency and low heat loss.

[0104] The embodiment of the present application provides a heating module 10, a method for preparing the heating module 10, and an electronic cigarette device 100 using the heating module 10. Among them, the method for preparing the heating module 10 has significant advantages. It forms a helical antenna structure 120 by winding the electromagnetic wave radiation component 12 and the insulating layer 11 together, and the structure constitutes an electromagnetic resonant cavity 121. Unlike the traditional microwave heating module 10, the traditional module relies on a waveguide structure to transmit electromagnetic waves, while the present solution adopts a helical antenna structure 120, which directly integrates electromagnetic radiation and resonance functions, eliminating the need for an independent waveguide component. This innovative design reduces the lateral size of the module and can better adapt to the development needs of miniaturization of the electronic cigarette device 100. In addition, the flexible winding process adopted in the present solution enables the electromagnetic wave radiation component 12 and the insulating layer 11 to form an integrated structure. In the case of plugging and unplugging the cigarette cartridge or the device falling, the mechanical stress can be dispersed by deformation between the winding layers. Compared with the traditional rigid antenna, the impact resistance of this structure has been effectively improved, and the fracture rate has been significantly reduced.

[0105] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0106] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0107] The above is a detailed introduction to the preparation method of the heating module, the heating module and the electronic cigarette device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for preparing a heating module, characterized in that: include: Providing an insulating layer, the insulating layer having a first surface and a second surface opposite to each other in a thickness direction; Providing an electromagnetic wave radiation component, and arranging the electromagnetic wave radiation component on the first surface; The insulating layer and the electromagnetic wave radiation component are wound together so that the electromagnetic wave radiation component forms a helical antenna structure, and the helical antenna structure constitutes an electromagnetic resonance cavity.

2. The method for preparing a heating module according to claim 1, characterized in that: The insulating layer and the electromagnetic wave radiation component are wound together, including: the insulating layer has a first side and a second side along the length direction; the first side of the insulating layer is wound toward the second surface so that at least a portion of the second surface of the insulating layer is in contact with the first surface.

3. The method for preparing a heating module according to claim 2, characterized in that: The electromagnetic wave radiation component includes an antenna radiation section. The electromagnetic wave radiation component is arranged on the first surface, including: the antenna radiation section is arranged on the first surface of the insulation layer with an inclination relative to the length direction of the insulation layer.

4. The method for preparing a heating module according to claim 3, characterized in that: After providing the electromagnetic wave radiation component, it also includes: determining the number of antenna coils of the helical antenna structure, and adjusting the inclination angle between the antenna radiation section and the length direction of the insulating layer so that the electromagnetic wave radiation component after winding forms a helical antenna structure corresponding to the number of antenna coils.

5. The method for preparing a heating module according to claim 3, characterized in that: After providing the electromagnetic wave radiation component, the method further includes: determining the number of antenna coils of the helical antenna structure, and cutting the length of the antenna radiation section so that the electromagnetic wave radiation component after winding forms a helical antenna structure corresponding to the number of antenna coils.

6. The method for preparing a heating module according to claim 3, characterized in that: The antenna radiation section includes a first sub-antenna radiation section and a second sub-antenna radiation section, and the first sub-antenna radiation section is arranged in parallel with the second sub-antenna radiation section.

7. The method for preparing a heating module according to any one of claims 1 to 6, characterized in that: Before winding the insulating layer and the electromagnetic wave radiation component together, it also includes: coating a thermosetting adhesive on the second surface of the insulating layer; after winding the insulating layer and the electromagnetic wave radiation component together, it also includes: hot pressing the insulating layer and the electromagnetic wave radiation component to cure the thermosetting adhesive.

8. The method for preparing a heating module according to any one of claims 1 to 6, characterized in that: Before arranging the electromagnetic wave radiation component on the first surface, the method further includes: performing micro-etching treatment on the surface of the electromagnetic wave radiation component.

9. A heating module, characterized in that: include: An insulating layer, wherein the insulating layer has a first surface and a second surface opposite to each other in a thickness direction; an electromagnetic wave radiation component, wherein the electromagnetic wave radiation component is disposed on the first surface; The insulating layer and the electromagnetic wave radiation component are wound together to form a helical antenna structure, and the helical antenna structure constitutes an electromagnetic resonant cavity.

10. An electronic smoking device, characterized in that: include: A heating module, wherein the heating module is the heating module according to claim 9; An electromagnetic shielding shell, wherein the electromagnetic shielding shell is sleeved on the outer side of the heating module; A first fixing member, wherein the first fixing member is arranged at one end of the electromagnetic shielding shell; a second fixing member, the second fixing member being arranged at the other end of the electromagnetic shielding shell; Wherein, the heating module is fixedly connected to the first fixing member and / or the second fixing member.

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