Radio frequency radiator structure and aerosol generating device

Abstract

The invention provides a radio frequency radiator structure and an aerosol generating device, the radio frequency radiator structure is used for the aerosol generating device, and the aerosol generating device is used for generating power signals with different initial phases and transmitting the power signals to the radio frequency radiator structure; the radio frequency radiator structure comprises at least two transmission connectors distributed at intervals and a radiation assembly with a containing cavity, and the containing cavity is used for containing a heated medium. The first connecting part of each transmission joint is connected with the radiation assembly; and the second connecting parts of the transmission joints are respectively used for receiving power signals of different initial phases and inputting the power signals into the conductor structure, so that a uniform high-frequency electric field is formed in the accommodating cavity through the radiation assembly. According to the radio frequency radiator structure and the aerosol generation device, power signals of different initial phases can be controlled to be fed into the radiation assembly from the transmission connectors at different positions, a uniform electric field is formed through the radiation assembly, a heated medium can be uniformly heated, the safety performance is good, and the service life is long.

Description

Technical Field

[0001] The present invention belongs to the technical field of aerosol preparation, and in particular relates to a radio frequency radiator structure and an aerosol generating device. Background Art

[0002] With the rapid development of heat-not-burn aerosol generating devices, their types are becoming increasingly diverse. Based on the principle of aerosol generation, they can be mainly divided into resistive, ultrasonic, infrared, electromagnetic, and radio frequency types. Among them, radio frequency aerosol generating devices have attracted the attention of many users. Radio frequency aerosol generating devices are aerogel generating devices with a resonant cavity structure as the main radio frequency radiator structure. Common radio frequency aerosol generating devices can generally be divided into the following two types according to their structure: pin-type structure and non-pin-type structure. However, whether it is a pin-type structure or a non-pin-type structure, there is usually electric field concentration during operation, which makes the continuity and uniformity of aerosol generation poor, affecting the user experience. Summary of the Invention

[0003] The present invention provides a radio frequency radiator structure and an aerosol generating device, aiming to solve the problem of poor uniformity when aerosol is prepared by an aerosol generating device in the related art.

[0004] In order to solve the above technical problems, the present invention is implemented as follows: on the one hand, a radio frequency radiator structure is provided for an aerosol generating device, the aerosol generating device is used to generate power signals with different initial phases and transmit them to the radio frequency radiator structure; wherein, the radio frequency radiator structure includes at least two transmission connectors distributed at intervals and a radiation component forming a receiving cavity, the receiving cavity is used to receive the heated medium; the first connecting part of each transmission connector is respectively connected to the radiation component; the second connecting part of each transmission connector is respectively used to receive power signals with different initial phases and input them into the conductor structure, so as to form a high-frequency electric field in the receiving cavity through the radiation component.

[0005] Furthermore, the radiation component includes a conductor structure and a zero potential reference piece fixed to the conductor structure, one end of the first connection part of the transmission connector is connected to the zero potential reference piece, and the other end is connected to the conductor structure; the inner side of the conductor structure is enclosed to form a receiving cavity.

[0006] Furthermore, the conductor structure includes a dielectric layer, an inner conductor part fixed on the inner side of the dielectric layer, and an outer conductor part fixed on the outer side of the dielectric layer, and the receiving cavity is formed on the inner side of the inner conductor part; the zero potential reference part is fixed on the dielectric layer, and the outer conductor part is coupled with the inner conductor part through the dielectric layer.

[0007] Furthermore, the zero potential reference part and the outer conductor part are located at the same radial position, and the inner conductor part and the dielectric layer together form a receiving cavity; or, the zero potential reference part and the inner conductor part are located at the same radial position, and the zero potential reference part, the inner conductor part, and the dielectric layer together form a receiving cavity.

[0008] Furthermore, the inner conductor includes a plurality of radiation components spaced apart and arranged around the outside of the receiving cavity.

[0009] Furthermore, the radiation component includes a first radiation portion and a second radiation portion; the first radiation portion and the second radiation portion are connected by a connecting piece, and a hollow portion is formed between the first radiation portion, the second radiation portion and the connecting piece.

[0010] Furthermore, the outer conductor member includes a plurality of conductor blocks that are spaced apart and evenly distributed from each other, and connectors connecting adjacent conductor blocks; in the radial direction, each radiation component is directly opposite to the conductor block.

[0011] Furthermore, the connecting member is a capacitor or an equivalent capacitor.

[0012] Furthermore, the outer conductor is an integrated structure.

[0013] Furthermore, the number of transmission connectors is an exponential power of two, and the exponent is a positive integer greater than 0; and the transmission connectors are arranged in a centrally symmetrical manner.

[0014] Furthermore, the number of the zero potential reference pieces is two, and the two zero potential reference pieces are fixed at both ends of the dielectric layer respectively; each zero potential reference piece is connected to two transmission connectors respectively, and the corresponding two transmission connectors are located on opposite sides of the zero potential reference piece respectively.

[0015] Furthermore, the thickness of the inner conductor is 0.035-0.105 mm, and / or the thickness of the outer conductor is 0.035-0.105 mm.

[0016] Furthermore, the conductor structure is cylindrical.

[0017] On the other hand, an aerosol generating device is provided, comprising a signal generating component and the radio frequency radiator structure as described in the first aspect above; the signal generating component is used to generate power signals with different initial phases.

[0018] Compared with the prior art, the radio frequency radiator structure and aerosol generating device of the present invention have the following advantages: different power signals can be fed into the radiating component from multiple ports (i.e., multiple transmission connectors), which can avoid the electric field from being concentrated in a certain area within the radiating component and make the electric field evenly distributed in the heated medium; and radio frequency power signals with different initial phases can be controlled to be fed into the radiating component from transmission connectors at different positions, that is, the power signals can be controlled to alternately enter the radiating component from different transmission connectors, further improving the effect of uniform electric field, thereby achieving uniform and efficient heating of the heated medium. Moreover, the application of multiple transmission connectors makes the power of the radio frequency signal fed from a single port relatively lower, which can greatly improve the service life and safety of the radio frequency radiator structure and the aerosol generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of a radio frequency radiator structure in an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of the overall structure of a radio frequency radiator structure in an embodiment of the present invention from another perspective;

[0021] Figure 3 This Figure 2 Cross-sectional view in the AA direction;

[0022] Figure 4 is an exploded view of a radio frequency radiator structure according to an embodiment of the present invention;

[0023] Figure 5 is a structural schematic diagram of an inner conductor structure in an embodiment of the present invention;

[0024] Figure 6 is a schematic diagram of a dynamic optimal power operating frequency point in an embodiment of the present invention;

[0025] Figure 7 1 is a schematic diagram of electric field vector distribution at a dynamic optimal power operating frequency point in an embodiment of the present invention;

[0026] Figure 8 Schematic diagram of the structure of an aerosol generating device in an embodiment of the present invention.

[0027] In the accompanying drawings 1-5, each figure mark represents: 1. Transmission connector; 11. First connecting part; 12. Second connecting part; 2. Radiating component; 21. Conductor structure; 211. Inner conductor part; 2111. Radiating component; 21111. First radiating part; 21112. Second radiating part; 21113. Connecting piece; 21114. Hollow part; 212. Outer conductor part; 2121. Conductor block; 2122. Connecting part; 23. Dielectric layer; 21a. Accommodating cavity; 22. Zero potential reference part; 3. Heated medium. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0031] In the related art, the radio frequency aerosol generating device is an aerogel generating device with a resonant cavity structure as the main radio frequency radiator structure, which is mainly divided into two categories: a pin-type structure and a non-pin-type structure. The body electric field distribution generated by the pin-type structure is concentrated in the central area of ​​the heated medium, causing the temperature in the central area to be concentrated, which can easily lead to uneven aerosol generation, burning of the heated medium, and residues of the heated medium at the pins. The radio frequency heating device with a non-pin-type structure feeds in too much radio frequency signal power, which can easily lead to electric field concentration near the transmission interface, and the electric field distribution is uneven, resulting in a short service life of the equipment, poor continuity and uniformity in aerosol generation, and low energy utilization efficiency and utilization rate of the heated medium.

[0032] To solve the above-mentioned problems in the related art, this embodiment provides a radio frequency radiator structure and an aerosol generating device.

[0033] like Figure 1-8 As shown, in this embodiment, a radio frequency radiator structure is used in an aerosol generating device, which includes a signal generating component that is used to generate power signals with different initial phases and transmit these power signals to the radio frequency radiator structure. The radio frequency radiator structure includes at least two spaced-apart transmission connectors 1 and a radiating component 2 having a receiving cavity 21a. The receiving cavity 21a is used to accommodate a heated medium 3. The first connecting portion 11 of each transmission connector 1 is respectively connected to the radiating component 2. The second connecting portion 12 of each transmission connector 1 is respectively used to receive power signals with different initial phases and input them into the radiating component 2, so that a high-frequency electric field is formed within the receiving cavity 21a through the radiating component 2.

[0034] Specifically, the RF radiator structure can receive the power signal generated by the signal generating component through multiple transmission connectors 1, that is, the power signal can be fed into the radiating component 2 from the transmission connectors 1 at different positions, thereby forming a high-frequency electric field in the receiving cavity 21a, and then the heated medium 3 contained in the receiving cavity 21a can be heated by the dielectric heating principle, thereby generating an aerosol. This embodiment can avoid the electric field from being concentrated in a certain area within the radiating component 2 by feeding different power signals from multiple ports (that is, multiple transmission connectors 1), thereby reducing the possibility of uneven heating of the heated medium 3 and the like; the power signal fed from a single port is relatively lower, which is beneficial to improving the service life and safety of the RF radiator structure and the aerosol generating device. In addition, this embodiment can also further ensure the effect of a uniform electric field by allowing the power signal to be input into the radiating component 2 from different feeding positions of the multiple ports with different phases, that is, it can control the power signal to enter the radiating component 2 alternately from different transmission connectors 1. In this embodiment, the heated medium 3 can be a heating load for generating aerosol. The heated medium 3 can be selected according to its own dielectric properties. A solid aerosol generating medium (HNB cigarette) containing polar molecules, a liquid aerosol generating medium containing polar molecules, or an aerosol medium, etc. can be selected. Aerosol can be generated after the heated medium 3 is heated.

[0035] In this embodiment, the number of transmission connectors 1 can be an exponential power of two, with the exponent being a positive integer greater than 0; the transmission connectors 1 are arranged centrally and symmetrically. The transmission connectors 1 can be SMA connectors, suitable for microwave applications up to 26.5 GHz, and offer excellent characteristics such as wide bandwidth, excellent performance, high reliability, and long life. The number of transmission connectors 1 can be two, four, eight, or sixteen, effectively preventing excessive signal power at a single transmission connector 1 and facilitating input-output isolation measurement by the power divider in the aerosol generating device. In specific implementations, the SMA connectors can be configured based on the required electric field distribution or the required temperature distribution of the heated medium 3, without limitation. Symmetry between the transmission connectors 1 further facilitates controlling the formation of a uniform electric field in the heated medium 3 during operation of the RF radiator structure. In some embodiments, the specific connection position between the zero potential reference element 22 and the transmission connector 1 can be determined based on the required electric field distribution and the operating conditions of the phase shifter in the signal generation component. The shape of the transmission connector 1 can be straight, offset, or elbow. During specific implementation, the shape and type of the transmission connector 1 can be determined according to the shape and position of the conductor structure 21 , and no limitation is imposed here.

[0036] In this embodiment, the radiating assembly 2 includes a conductor structure 21 and a zero-potential reference member 22 fixed to the conductor structure 21. One end of the first connection portion 11 of the transmission connector 1 is connected to the zero-potential reference member 22, and the other end is connected to the conductor structure 21. The inner side of the conductor structure 21 encloses a receiving cavity 21a. After receiving a power signal, the transmission connector 1 can transmit the power signal to the conductor structure 21. Based on the received power signal, the conductor structure 21 can interact with the zero-potential reference member 22 to form a high-frequency electric field. This electric field is then confined to the heated medium 3 within the receiving cavity 21a, thereby heating the heated medium 3 and uniformly generating an aerosol.

[0037] Furthermore, in this embodiment, the conductor structure 21 includes a dielectric layer 23, an inner conductor 211 fixed to the inner side of the dielectric layer 23, and an outer conductor 212 fixed to the outer side of the dielectric layer 23. The receiving cavity 21a is formed inside the inner conductor 211. The zero potential reference member 22 is fixed to the dielectric layer 23, and the outer conductor 212 is coupled to the inner conductor 211 through the dielectric layer 23. Specifically, the transmission connector 1 includes a first connection portion 11 connected to the conductor structure 21 and a second connection portion 12 connected to the zero potential reference member 22. The zero potential reference member 22 can serve as a reference ground plane and is fixed to the end of the dielectric layer 23. The conductor structure 21 can form a high-frequency electric field based on the received power signal in conjunction with the zero potential reference member 22.

[0038] In some embodiments, there are two zero potential reference members 22, each fixed to either end of the dielectric layer 23, i.e., located on the outer periphery of the dielectric layer 23. These members provide the required zero potential reference position for the corresponding transmission connector 1, thereby better constraining the electric field distribution within the heated medium 3 and preventing the electric field from adversely affecting the functions of other components. In some specific embodiments, each zero potential reference member 22 is fixedly connected to two transmission connectors 1, with the corresponding two transmission connectors 1 located on opposite sides of the zero potential reference member 22. The corresponding second connecting portions 12 can be fixed to the zero potential reference member 22 using an external threaded connection, and the first connecting portion 11 is in contact with the conductor structure 21. That is, four transmission connectors 1 are provided, and the four transmission connectors 1 are distributed symmetrically around the center, so that power signals with different initial phases can be controlled to be fed into the conductor structure 21 from different directions through the four transmission connectors 1, thereby generating the required electric field in the heated medium 3. At the same time, the portion where the conductor structure 21 is connected to the transmission connector 1 and the zero potential reference member 22 can also play a role in constraining the electric field, thereby achieving uniform heating of the heated medium 3 and improving the user experience.

[0039] In this embodiment, the conductor structure 21 can be cylindrical and include a dielectric layer 23, an inner conductor 211 fixed to the inner side of the dielectric layer 23, and an outer conductor 212 fixed to the outer side of the dielectric layer 23. The receiving cavity 21a is formed inside the inner conductor 211. The zero potential reference member 22 is fixed to the dielectric layer 23, and the outer conductor 212 is coupled to the inner conductor 211 through the dielectric layer 23. Specifically, the outer conductor 212 can be a cage-like structure, which is used to provide power to the inner conductor 211 and change the dynamic optimal power operating frequency point. The inner conductor 211 can serve as a complementary resonant ring corresponding to the outer conductor 212, which is used to generate a high-frequency electric field in the receiving cavity 21a. Different dynamic optimal power operating frequency points can also be determined based on the size and structure of the resonant ring. By controlling the optimal power operating frequency point, a desired distribution of electric fields can be formed in the heated medium 3.

[0040] In this embodiment, the outer conductor 212 includes a plurality of conductor blocks 2121 that are spaced apart and evenly distributed, and connectors 2122 that connect adjacent conductor blocks 2121. The connector 2122 is a capacitor or an equivalent capacitor. In some specific embodiments, the number of conductor blocks 2121 can be eight, and the eight conductor blocks 2121 are evenly arranged around the outside of the dielectric layer 23. Two adjacent conductor blocks 2121 are connected by connectors 2122, and the two ends of the two symmetrical conductor blocks 2121 are also respectively connected to the transmission connector 1. This arrangement allows the conductor blocks 2121 connected to the transmission connector 1 to confine the electric field in the heated medium 3 together with the zero potential reference member 22. The conductor blocks 2121 and the connector 2122 are connected in series to adjust the corresponding resonant frequency. In this embodiment, the electric field distribution can be adjusted through the interaction between orientation polarization and the positive and negative electrons of the ion stack to avoid the electric field distribution outside the receiving cavity from affecting other electronic components. It is understandable that in some other embodiments, the number of the conductor blocks 2121 may also be six, seven, nine, etc., which is not limited here.

[0041] Furthermore, in this embodiment, the connector 2122 can be a chip capacitor element with a capacitance of 1 to 20 pF, which has a simple structure and is easy to obtain. The capacitance of the connector 2122 can also be 1 pF, 2 pF, 5 pF, 8 pF, 10 pF, 12 pF, 15 pF, 16 pF, 18 pF, etc., which are not limited here. It should be noted that in some embodiments, the outer conductor 212 can be an integrated structure. That is, the connector 2122 is directly removed, and an integrated cage-shaped outer conductor is used as the outer conductor 212. By adjusting the structure of the outer conductor 212, a coupling capacitor is formed on the macroscopic electric field, which can also achieve electric field control.

[0042] like Figure 4 and 5As shown, in this embodiment, the inner conductor 211 includes a plurality of radiating elements 2111 spaced apart and arranged around the outside of the receiving cavity 21a. In the radial direction, each radiating element 2111 directly faces the conductor block 2121. Specifically, the radiating elements 2111 are evenly arranged, with three radiating elements 2111 in each row in the axial direction. That is, adjacent radiating elements 2111 have gaps of the same width between them. In the axial direction parallel to the receiving cavity, three radiating elements 2111 are correspondingly disposed inside each conductor block 2121. The three radiating elements 2111 are arranged in a row and directly face each conductor block 2121, thereby forming the desired complementary resonant ring. Through the interaction between the cage-shaped outer conductor 212, the inner conductor 211 of the complementary resonant ring, and the zero potential reference element 22, a uniform high-frequency electric field is formed within the heated medium 3.

[0043] Furthermore, in this embodiment, the radiation component 2111 includes a first radiation portion 21111 and a second radiation portion 21112; the first radiation portion 21111 and the second radiation portion 21112 are connected by a connecting piece 21113, and a hollow portion 21114 is formed between the first radiation portion 21111, the second radiation portion 21112, and the connecting piece 21113. Specifically, the first radiation portion 21111 can be in a square shape; the second radiation portion 21112 can be in a block shape; the hollow portion 21114 is annular and not closed; the area of ​​the connecting piece 21113 is smaller than the first radiation portion 21111 and also smaller than the second radiation portion 21112. Figure 6 and 7 As shown, in this embodiment, by setting the resonant ring structure in this way, the dynamic optimal power operating frequency point of the radio frequency radiator can be obtained, and then the required distribution of the electric field can be formed by controlling the dynamic optimal power operating frequency point. Figure 7 It can be seen that the electric field formed by the conductor structure 21 of this embodiment is almost evenly distributed in the heated medium 3 in the receiving groove 21 a , thereby achieving uniform heating of the heated medium 3 .

[0044] In this embodiment, the zero potential reference part 22 and the outer conductor part 212 are located at the same radial position, and the inner conductor part 211 and the dielectric layer 23 together enclose a receiving cavity 21a; or, the zero potential reference part 22 and the inner conductor part 211 are located at the same radial position, and the zero potential reference part 22, the inner conductor part 211, and the dielectric layer 23 together enclose a receiving cavity 21a.

[0045] Specifically, the inner conductor 211 is separated from the zero potential reference member 22 and the outer conductor 212 by a dielectric layer 23. In the radial direction, the zero potential reference member 22 can be set at the same layer as the inner conductor 211, or at the same layer as the outer conductor 212, or can be embedded inside the dielectric layer 23. The zero potential reference member 22 is arranged around the periphery of the receiving cavity 21a, which can play a role in constraining the electric field, so that the electric field is formed on the heated medium 3 in the receiving cavity 21a, and the electric field is evenly distributed in the heated medium 3, thereby preventing electronic components in other parts of the device from being affected by the electric field and being damaged. In a preferred embodiment, the zero potential reference member 22 is at least partially embedded outside the dielectric layer 23, and the outer conductor 212 is also at least partially embedded outside the dielectric layer 23, and the zero potential reference member 22 and the outer conductor 212 are on the same layer. It is understandable that in actual implementation, the specific position of the zero potential reference part 22 can be selected and determined based on the type of transmission connector 1 used, the actual electric field distribution requirements, the temperature field distribution requirements of the heated medium 3, etc., and is not limited here.

[0046] In this embodiment, the thickness of the inner conductor 211 can be 0.035 to 0.105 mm, specifically 0.035 mm, 0.045 mm, 0.055 mm, 0.060 mm, 0.065 mm, 0.070 mm, 0.095 mm, etc., without limitation. The thickness of the outer conductor 212 is 0.035 to 0.105 mm, specifically 0.035 mm, 0.050 mm, 0.065 mm, 0.075 mm, 0.085 mm, 0.095 mm, etc., without limitation.

[0047] In this embodiment, the thickness of dielectric layer 23 ranges from 0.78 to 2.36 mm, and specifically can be 0.78 mm, 1.00 mm, 0.45 mm, 0.75 mm, 2.00 mm, 2.36 mm, etc., without limitation. Dielectric layer 23 can be made of a dielectric substrate material used in high-frequency PCBs, and the board material parameters can be FR4, Rogers 4350B, etc. During implementation, materials with different dielectric constants and loss tangents can be selected based on electric field constraint requirements and coupling effect requirements.

[0048] In this embodiment, the inner conductor 211 can be made of one of copper, aluminum, silver, and gold, and the outer conductor 212 can also be made of one of copper, aluminum, silver, and gold. These materials exhibit low resistivity, strong conductivity, and a stable structure. Of course, in other embodiments, alloys of copper, aluminum, silver, gold, and other metal materials can also be used as the inner conductor 211 or outer conductor 212, without limitation.

[0049] like Figure 8As shown, in this embodiment, the aerosol generating device includes a signal generating component and a radio frequency radiator structure. The signal generating component may include a power supply, a radio frequency source, a power divider, and a phase shifter. The power supply and the radio frequency source are electrically connected, and the DC signal can be converted into a high-power radio frequency electromagnetic wave signal by the radio frequency source; the power divider can distribute the high-power radio frequency electromagnetic wave signal output by the radio frequency source into power signals of the same power or different power, and these power signals are in the same phase and frequency radio frequency band; the phase shifter can phase-shift the received power signal to obtain power signals of different initial phases, and transmit them to the transmission connector corresponding to the radio frequency radiator structure. The radio frequency radiator structure can generate an electric field distribution in the heated medium based on the received power signal, and through the high-frequency electromagnetic field, based on the dielectric heating principle, the heated medium generates heat and generates aerosol within 0.5 to 5 seconds. It can be seen that this embodiment uses the coordinated application of a power divider, a phase shifter and an RF radiator structure to input the power signal output by the RF source into the RF radiator structure from different feeding positions of multiple ports with different phases. The electric field formed in the heated medium is more uniform, and the input power of a single transmission connector is lower, thereby improving the safety and service life of the aerosol generating device.

[0050] In this embodiment, the number of phase shifters corresponds to the number of transmission connectors, that is, it can be set to an exponential power of two as required, with the exponent being a positive integer greater than 0. The number of power splitters can also be set to 2, 4, 8, etc., to control the effective input power of the RF radiator structure to be between 1 and 10W. This can reduce heating and electromagnetic interference caused by the RF source, power splitter, phase shifter, etc. during transmission, and reduce heating at the connection of the transmission connector.

[0051] During the specific implementation process, the phase shifter can be controlled to have a phase offset value range of approximately 1 to 180° based on the uniformity requirements of the electric field distribution and the relationship between the relevant transmission line and the wavelength of the electromagnetic wave. The power supply can be a solid-state DC source of 4 to 6V and 2000 to 4000mAH; the power range of the total output power signal of the RF source can be 15 to 40W (42 to 46dBm). The phase shifter can be a switching phase shifter, a load phase shifter, a hybrid phase shifter, a high-pass or low-pass phase shifter, etc. The power divider can be an equal power divider or an unequal power divider, etc., and can be determined specifically based on the electric field distribution requirements or the temperature field distribution requirements of the heated medium.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A radio frequency radiator structure for an aerosol generating device, wherein the aerosol generating device is used to generate power signals with different initial phases and transmit them to the radio frequency radiator structure; characterized in that: The RF radiator structure includes at least two transmission connectors distributed at intervals and a radiating component formed with a receiving cavity, wherein the receiving cavity is used to receive the heated medium; the first connecting part of each transmission connector is respectively connected to the radiating component; the second connecting part of each transmission connector is respectively used to receive power signals with different initial phases and input them into the radiating component, so as to form a high-frequency electric field in the receiving cavity through the radiating component.

2. The radio frequency radiator structure according to claim 1, wherein: The radiation component includes a conductor structure and a zero potential reference piece fixed to the conductor structure. One end of the first connection part of the transmission connector is connected to the zero potential reference piece, and the other end is connected to the conductor structure; the inner side of the conductor structure encloses the accommodating cavity.

3. The radio frequency radiator structure according to claim 2, wherein: The conductor structure includes a dielectric layer, an inner conductor member fixed to the inner side of the dielectric layer, and an outer conductor member fixed to the outer side of the dielectric layer, and the accommodating cavity is formed on the inner side of the inner conductor member; the zero potential reference member is fixed on the dielectric layer, and the outer conductor member is coupled to the inner conductor member through the dielectric layer.

4. The radio frequency radiator structure according to claim 3, wherein: The zero potential reference member and the outer conductor member are located at the same radial position, and the inner conductor member and the dielectric layer together enclose the receiving cavity; Alternatively, the zero potential reference member and the inner conductor member are located at the same radial position, and the zero potential reference member, the inner conductor member, and the dielectric layer together enclose the receiving cavity.

5. The radio frequency radiator structure according to claim 3, wherein: The inner conductor comprises a plurality of radiation components which are spaced apart and arranged around the outside of the receiving cavity.

6. The radio frequency radiator structure according to claim 5, characterized in that: The radiation component includes a first radiation portion and a second radiation portion; the first radiation portion and the second radiation portion are connected via a connecting piece, and a hollow portion is formed between the first radiation portion, the second radiation portion, and the connecting piece.

7. The radio frequency radiator structure according to claim 5, characterized in that: The outer conductor member includes a plurality of conductor blocks that are spaced apart and evenly distributed from each other, and connectors connecting adjacent conductor blocks; in a radial direction, each of the radiation components is directly opposite to the conductor block.

8. The radio frequency radiator structure according to claim 7, wherein: The connecting member is a capacitor or an equivalent capacitor.

9. The radio frequency radiator structure according to claim 3, wherein: The outer conductor is an integrated structure.

10. The radio frequency radiator structure according to claim 1, wherein: The number of the transmission connectors is an exponential power of two, and the exponent is a positive integer greater than 0; and the transmission connectors are arranged in a centrally symmetrical manner.

11. The radio frequency radiator structure according to claim 3, wherein: The number of the zero potential reference parts is two, and the two zero potential reference parts are respectively fixed at the two ends of the dielectric layer; each zero potential reference part is respectively connected to the two transmission connectors, and the corresponding two transmission connectors are respectively located on opposite sides of the zero potential reference part.

12. The radio frequency radiator structure according to claim 3, wherein: The thickness of the inner conductor is 0.035-0.105 mm, and / or the thickness of the outer conductor is 0.035-0.105 mm.

13. The radio frequency radiator structure according to claim 2, wherein: The conductor structure is cylindrical.

14. An aerosol generating device, characterized in that It comprises a signal generating component and a radio frequency radiator structure as described in any one of claims 1 to 13, wherein the signal generating component is used to generate power signals with different initial phases.

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