Heating module and electronic cigarette

Abstract

The heating module comprises a resonant cavity and a heating assembly, the resonant cavity is used for reflecting microwaves, a resonant cavity is formed in the resonant cavity and used for containing a cigarette, the resonant cavity penetrates through one end of the resonant cavity, and the other end of the resonant cavity is provided with a first opening communicating with the other end of the resonant cavity; the heating assembly penetrates through the first opening and is arranged in the resonant cavity. The heating assembly comprises a radio frequency antenna. According to the heating module and the electronic cigarette provided by the embodiment of the invention, the resonant cavity is multiplexed as the cavity for accommodating the fuming medium, and the resonant cavity can reflect the microwaves emitted by the radio frequency antenna, so that most of the microwaves are limited in the resonant cavity, and the fuming medium is heated in multiple directions, so that the heating efficiency is improved under the condition of not additionally adding components. The heating efficiency of the heating module and the heating uniformity of the fuming medium are improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic cigarettes, and in particular to a heating module and an electronic cigarette. Background Art

[0002] Currently, microwave technology has been applied to the field of electronic cigarettes. Setting a microwave generator and a microwave antenna in the electronic cigarette and using microwave heating can effectively improve the safety of the electronic cigarette.

[0003] In the process of research and practice of the prior art, the inventor of the present application found that in the related art, a metal patch is usually used to surround the fixing rod, and then a sleeve is put on the outer side of the fixing rod. However, the patch process is relatively complicated, the antenna cannot be fixed well and the consistency is not high, and the heating efficiency is low. Summary of the invention

[0004] The embodiments of the present application provide a heating module and an electronic cigarette, which can save assembly space and improve heating efficiency.

[0005] The present application provides a heating module, which includes:

[0006] A resonant cavity, the resonant cavity is used to reflect microwaves, a resonant cavity is arranged in the resonant cavity, the resonant cavity is used to accommodate a smoke-generating medium, the resonant cavity runs through one end of the resonant cavity, and the other end of the resonant cavity is provided with a first opening connected to the other end of the resonant cavity;

[0007] A heating component is disposed in the resonant cavity through the first opening, and the heating component includes a radio frequency antenna.

[0008] Optionally, in some embodiments of the present application, the smoke-generating medium is a cigarette, the heating module includes an end cover, the end cover includes a cover body, a convex portion and a first limiting portion, the cover body is provided with a second opening, the second opening is communicated with the resonance cavity, the convex portions are provided on the side wall of the second opening and are spaced apart along the circumferential direction of the second opening, a first airway is formed between two adjacent convex portions, the first limiting portion is provided on a side of the cover body close to the resonance cavity, the convex portion includes a contact surface for contacting the cigarette, and the contact surface is located on a side of the convex portion away from the side wall of the second opening;

[0009] The cover body is arranged on a side of the resonant cavity away from the first opening, the first limit portion is arranged on the outside of the resonant cavity, and in the orthographic projection direction of the heating module, the side wall of the resonant cavity is located on the outer peripheral side of the contact surface of the convex portion;

[0010] The resonance cavity includes a bottom plate, a resonance wall and a base. The resonance wall is connected to the side of the bottom plate close to the end cover. The base is arranged on the bottom plate and located on the side of the bottom plate away from the end cover. The bottom plate and the resonance wall define the resonance cavity. The bases are spaced apart along the circumferential direction of the resonance cavity. A second airway is formed between two adjacent bases. The base is used to support the cigarette.

[0011] Optionally, in some embodiments of the present application, the smoke-generating medium is a cigarette, the heating module includes an end cover, the end cover includes a cover body, an airway limiting portion and a first limiting portion, the cover body is provided with a second opening for inserting the cigarette, the second opening is communicated with the resonance cavity, the airway limiting portion is provided on a side of the cover body away from the resonance cavity, the inner wall of the airway limiting portion is located on the outer peripheral side of the side wall of the second opening, a first airway is formed between the inner wall of the airway limiting portion and the side wall of the second opening, the side wall of the second opening is used to stick to the cigarette, and the cigarette is provided with an air hole for communicating with the first airway;

[0012] The cover body is arranged on a side of the resonance cavity away from the first opening, and the first limiting portion is arranged outside the resonance cavity and located on a side of the cover body away from the airway limiting portion.

[0013] Optionally, in some embodiments of the present application, the resonance cavity includes a bottom plate, a resonance wall and a base, the resonance wall is arranged and connected to a side of the bottom plate close to the end cover, the base is arranged on the bottom plate and located on a side of the bottom plate away from the end cover, the bottom plate and the resonance wall define the resonance cavity, the bases are arranged at intervals along the circumferential direction of the resonance cavity, a second air passage is formed between two adjacent bases, and the base is used to support the cigarette.

[0014] Optionally, in some embodiments of the present application, the resonant wall includes a main body portion and a flared portion connected to a side of the main body portion close to the end cover, and an inner diameter of the flared portion is greater than an inner diameter of the main body portion.

[0015] Optionally, in some embodiments of the present application, the width of the flared portion decreases vertically from the base toward the end cover.

[0016] Optionally, in some embodiments of the present application, a concave portion is formed on a side of the resonance wall away from the resonance cavity, and a side of the concave portion protrudes toward the resonance cavity for abutting against the cigarette;

[0017] The heating module also includes a temperature collector, and the temperature collector is arranged in the recessed portion.

[0018] Optionally, in some embodiments of the present application, the heating module further includes a heat insulation layer, the heat insulation layer is arranged around the periphery of the resonance wall, a positioning portion is provided on a side of the heat insulation layer close to the resonance wall, and the positioning portion is arranged in the recessed portion.

[0019] Optionally, in some embodiments of the present application, the heating module further comprises a shell, and the shell is sleeved on the outer peripheral side of the thermal insulation layer;

[0020] The end cover comprises a second limiting portion, which is arranged on a side of the cover body close to the heat insulation layer and located on the outer peripheral side of the first limiting portion, the resonant cavity comprises a bottom plate, a resonant wall and a lug, the resonant wall is arranged and connected to a side of the bottom plate close to the end cover, and the lug is connected and arranged on a side of the resonant wall away from the first opening and the end cover;

[0021] The shell is sleeved on the outer peripheral side of the second limiting portion, one end of the shell abuts against the edge of the cover body, and the other end of the shell abuts against the lug.

[0022] Optionally, in some embodiments of the present application, the heating assembly includes a shell, a support member and a radio frequency antenna, a positioning groove is provided on the circumferential side of the support member, the positioning groove is threaded, the radio frequency antenna is wound around the circumferential side of the support member and is located in the positioning groove, and the shell is sleeved on the outer circumferential side of the support member.

[0023] Optionally, in some embodiments of the present application, the positioning groove includes a first groove, a second groove and a third groove, the second groove is connected to one end of the first groove, and the third groove is connected to the other end of the first groove;

[0024] The first groove is arranged at the top of the support member, the second groove and the third groove are respectively arranged from the top of the support member to the bottom of the support member, and the second groove and the third groove are arranged at intervals;

[0025] The radio frequency antenna comprises a first transmitting segment, a second transmitting segment and a third transmitting segment, wherein the second transmitting segment is connected to one end of the first transmitting segment, and the third transmitting segment is connected to the other end of the first transmitting segment;

[0026] The first emitting section is arranged in the first groove, the second emitting section is arranged in the second groove, and the third emitting section is arranged in the third groove.

[0027] Optionally, in some embodiments of the present application, the radio frequency antenna further includes a fourth transmitting segment, and the fourth transmitting segment is connected to an end of the second transmitting segment or the third transmitting segment away from the first transmitting segment;

[0028] The fourth emitting section is suspended in the air and spirally arranged at one end of the supporting member close to the first opening.

[0029] Correspondingly, an embodiment of the present application further provides an electronic cigarette, which includes a heating module as described in any one of the above embodiments.

[0030] The heating module and the electronic cigarette of the embodiment of the present application include a resonant cavity and a heating component. The resonant cavity is used to reflect microwaves. A resonant cavity is arranged in the resonant cavity. The resonant cavity is used to accommodate cigarettes. The resonant cavity runs through one end of the resonant cavity. The other end of the resonant cavity is provided with a first opening connected to the other end of the resonant cavity. The heating component is arranged in the resonant cavity through the first opening, and the heating component includes a radio frequency antenna.

[0031] Among them, the heating module and the electronic cigarette of this embodiment use a resonant cavity to reuse as a cavity for accommodating the smoke-generating medium. Since the resonant cavity can reflect the microwaves emitted by the radio frequency antenna, most of the microwaves are confined in the resonant cavity, and the smoke-generating medium is heated in multiple directions, thereby improving the heating efficiency of the heating module and the uniformity of heating of the smoke-generating medium without adding additional components. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the exploded structure of the heating module provided in an embodiment of the present application;

[0033] Figure 2 is a schematic cross-sectional structural diagram of a heating module provided in an embodiment of the present application;

[0034] Figure 3 is a schematic cross-sectional structural diagram of an end cover of a heating module provided in an embodiment of the present application;

[0035] Figure 4 is a schematic structural diagram of a resonant cavity of a heating module provided in an embodiment of the present application;

[0036] Figure 5 It is a schematic diagram of the airway structure after the heating module provided in the embodiment of the present application is inserted into the cigarette;

[0037] Figure 6 It is a schematic diagram of the structure of the coordination between the resonant cavity and the heat insulation layer of the heating module provided in an embodiment of the present application;

[0038] Figure 7 It is a structural schematic diagram of a heating component of a heating module provided in an embodiment of the present application;

[0039] Figure 8 It is another structural schematic diagram of the radio frequency antenna and the support member of the heating component in the heating module provided in the embodiment of the present application;

[0040] Fig. 9 This is another structural schematic diagram of the radio frequency antenna and the support member of the heating component in the heating module provided in the embodiment of the present application;

[0041] Fig.10 This is another structural schematic diagram of the heating module inserted into a cigarette provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not 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. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the drawings; while "inside" and "outside" refer to the outline of the device; the terms "first", "second", "third", etc. are used only as markings, and no numerical requirements are imposed or order is established.

[0043] The embodiments of the present application provide a heating module and an electronic cigarette, which are described in detail below. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.

[0044] Please refer to Figure 1 and Figure 2 An embodiment of the present application provides a heating module 100 , which includes a resonant cavity 10 and a heating component 20 .

[0045] The resonant cavity 10 is used to reflect microwaves. A resonant cavity 10a is provided in the resonant cavity 10. The resonant cavity 10a is used to contain a smoke-generating medium. The resonant cavity 10a runs through one end of the resonant cavity 10. The other end of the resonant cavity 10 is provided with a first opening 10b connected to the other end of the resonant cavity 10a.

[0046] The heating component 20 is disposed in the resonant cavity 10a through the first opening 10b. The heating component 20 includes a radio frequency antenna 21.

[0047] The heating module 100 of this embodiment uses the resonant cavity 10 to reuse as a cavity for accommodating the smoke-generating medium. Since the resonant cavity 10 can reflect the microwaves emitted by the radio frequency antenna, most of the microwaves are confined in the resonant cavity 10a, and the smoke-generating medium is heated in multiple directions, so that the heating efficiency of the heating module 100 and the uniformity of heating of the smoke-generating medium are improved without adding additional components.

[0048] Optionally, the smoke-generating medium may be a cigarette, a cigarette cartridge, or bulk tobacco, etc. The heating module 100 of the embodiment of the present application is described by taking a cigarette as an example of the smoke-generating medium, but is not limited thereto.

[0049] Optionally, the material of the resonant cavity 10 may be a metal material having the ability to reflect microwaves.

[0050] Optionally, the resonant cavity 10 is grounded to reduce interference to the microwaves. In addition, since the entire resonant cavity 10 is made of metal material, any position of the resonant cavity 10 can be used for grounding, thereby improving the convenience of grounding.

[0051] Optionally, the length of the resonant cavity 10 is greater than 3 cm to ensure that the cigarette can be heated well. The length of the resonant cavity 10 can be 4 cm, 6 cm, 8 cm or 10 cm, etc. The specific length of the resonant cavity 10 can be appropriately adjusted according to the length of the cigarette.

[0052] Optionally, in one embodiment, the smoke-generating medium is a cigarette. Figure 2 and Figure 3 The heating module 100 includes an end cover 30. The end cover 30 includes a cover body 31, a protrusion 32 and a first limiting portion 33. The cover body 31 is provided with a second opening 31a, and the second opening 31a is connected to the resonance cavity 10a. The protrusions 32 are arranged on the side wall of the second opening 31a and are arranged at intervals along the circumferential direction of the second opening 31a. A first airway 32a is formed between two adjacent protrusions 32. The first limiting portion 33 is arranged on a side of the cover body 31 close to the resonance cavity 10a. The protrusion 32 includes a contact surface 32b for contacting a cigarette. The contact surface 32b is located on the side of the protrusion 32 away from the side wall of the second opening 31a.

[0053] The cover 31 is disposed on a side of the resonant cavity 10 away from the first opening 10b. The first stopper 33 is disposed outside the resonant cavity 10. In the orthographic projection direction of the heating module 100, the side wall of the resonant cavity 10a is located on the outer peripheral side of the contact surface 32b of the convex portion 32.

[0054] Combination Figure 2 and Figure 4 The resonant cavity 10 includes a bottom plate 11, a resonant wall 12 and a base 13. The resonant wall 12 is arranged on a side of the bottom plate 11 close to the end cover 30. The base 13 is arranged on the bottom plate 11 and is located on a side of the bottom plate 11 away from the end cover 30. The bottom plate 11 and the resonant wall 12 define a resonant cavity 10a. The bases 13 are arranged at intervals along the circumferential direction of the resonant cavity 10a. A second airway 10c is formed between two adjacent bases 13. The base 13 is used to support a cigarette.

[0055] Among them, combined Figure 5, the cigarette yz is inserted into the resonance cavity 10a, the bottom of the cigarette yz abuts against the base 13, and the side wall of the cigarette yz contacts the contact surface 32b of the convex portion 32. The outside air enters the resonance cavity 10a from the first air passage 32a along the resonance wall 12 of the resonance cavity 10a, then enters the bottom of the resonance cavity 10a through the second air passage 10c, and finally goes out from the cigarette yz.

[0056] In this embodiment, the entire airway structure is constructed in the resonant cavity 10. On the one hand, the airway path is shortened and the airway structure is simplified; on the other hand, the temperature inside the resonant cavity 10a is higher than that outside the resonant cavity 10, which is beneficial to the heating of the gas, can assist in heating the cigarette yz, and improve the heating efficiency and heating uniformity.

[0057] Optional, see Figure 6 The resonant wall 12 includes a main body 121 and a flared portion 122 connected to a side of the main body 121 close to the end cover 30 . The inner diameter of the flared portion 122 is greater than the inner diameter of the main body 121 .

[0058] Among them, the flared portion 122 is arranged on a side close to the end cover 30 and abuts the end cover 30. On the one hand, it can reduce the risk of poor airflow caused by the gas being blocked by the resonance wall 12 when entering the resonance cavity 10a from the first airway 32a due to size error and assembly error; on the other hand, it can facilitate the smooth insertion of the cigarette.

[0059] Optionally, the width k of the flared portion 122 decreases vertically from the base 13 toward the end cover 30 .

[0060] The use of the expanded portion 122 with a gradually changing width k can further improve the smoothness of the airway and the smoothness of the cigarette insertion into the resonance cavity 10a.

[0061] Optionally, a concave portion 123 is formed on a side of the resonance wall 12 facing away from the resonance cavity 10a, and a side of the concave portion 123 protrudes toward the resonance cavity 10a for abutting against a cigarette.

[0062] The heating module 100 further includes a temperature collector 40 , which is disposed in a recessed portion 123 .

[0063] It can be understood that the recessed portion 123 is recessed from the resonance cavity 10a, so that the recessed portion 123 extends into the resonance cavity 10a, and the recessed portion 123 extending into the resonance cavity 10a can be used to clamp the side wall of the cigarette, improve the stability of the cigarette, and thus improve the smoking experience. Secondly, the side of the recessed portion 123 away from the resonance cavity 10a forms a groove space, and the groove space is used to set the temperature collector 40, saving space for setting the temperature collector 40; in addition, because the groove space is closer to the center of the resonance cavity 10a, the collection accuracy of the temperature collector 40 can be improved, which is convenient for accurately controlling the smoking temperature.

[0064] In addition, since the recessed portion 123 is recessed toward the resonance cavity 10a, when the microwaves are reflected in the resonance cavity 10a, the path of the microwaves can be shortened, thereby improving the heating efficiency. Secondly, the arrangement of the recessed portion 123 enables the resonance cavity 10a to have an arc-shaped recessed surface and an arc-shaped convex surface, and the arc-shaped recessed surfaces and the arc-shaped convex surfaces are alternately arranged along the circumferential direction of the resonance cavity 10a, thereby improving the uniformity of microwave reflection.

[0065] Optionally, the arc shape may be a circular arc or other arc shapes.

[0066] In some embodiments, the temperature collector 40 may also be disposed in the heating assembly 20 .

[0067] Optionally, the heating module 100 further includes a heat insulating layer 50 , which is disposed around the outer periphery of the resonance wall 12 . A positioning portion 51 is disposed on one side of the heat insulating layer 50 close to the resonance wall 12 , and the positioning portion 51 is disposed in the recessed portion 123 .

[0068] It should be noted that there are multiple recessed parts 123, wherein the recessed space of one recessed part 123 is used to set the temperature collector 40, and the groove spaces of the other recessed parts 123 are used to position and cooperate with the positioning part 51 to improve assembly efficiency and assembly accuracy.

[0069] In addition, the heat insulating layer 50 and the recessed portion 123 corresponding to the temperature collector 40 form a heat insulating space, which further improves the collection accuracy of the temperature collector 40 .

[0070] In some embodiments, the heat insulation layer 50 may not be provided with the positioning portion 51 and may be directly attached to the resonance wall 12 .

[0071] Optionally, the material of the heat insulation layer 50 may be selected from low thermal conductivity materials, including but not limited to aerogel.

[0072] Optionally, the heating module 100 further includes a shell 60 , which is sleeved on the outer peripheral side of the thermal insulation layer 50 .

[0073] The end cover 30 includes a second limiting portion 34, which is arranged on a side of the cover body 31 close to the insulation layer 50 and located on the outer peripheral side of the first limiting portion 33. The resonant cavity 10 also includes a lug 14. The resonant wall 12 is arranged and connected to a side of the bottom plate 11 close to the end cover 30. The lug 14 is connected and arranged on a side of the resonant wall 12 away from the first opening 10b and the end cover 30.

[0074] The housing 60 is sleeved on the outer peripheral side of the second limiting portion 34 . One end of the housing 60 abuts against the edge of the cover 31 , and the other end of the housing 60 abuts against the lug 14 .

[0075] Optionally, the material of the shell 60 can be a metal material, which is used for supporting and fixing, and serves as an outer layer to shield microwaves and protect the human body.

[0076] In some embodiments, the material of the housing 60 may be other.

[0077] Optionally, the resonant cavity 10 may be an integrally formed structure, or may be a structure formed as an integral whole by physical connection, such as welding.

[0078] Optionally, the lug 14 is also provided with an opening 14a, which is used for fixed connection with other components. The opening 14a can also be used for extending the lead wire of the temperature collector 40 and the grounding lead wire.

[0079] Please refer to Figure 7 Optionally, the heating assembly 20 includes a shell 23, a support member 22 and a radio frequency antenna 21. A positioning groove 221 is provided on the peripheral side of the support member 22. The positioning groove 221 is threaded. The radio frequency antenna 21 is wound around the peripheral side of the support member 22 and is located in the positioning groove 221. The shell 23 is sleeved on the outer peripheral side of the support member 22.

[0080] The radio frequency antenna 21 is wound in the positioning groove 221, thereby reducing the problem of easy movement of the radio frequency antenna 21 and the deviation of accuracy.

[0081] Optionally, the pitches of the thread positioning grooves 221 are equal, and the widths of the positioning grooves 221 are consistent, so that the pitches of the RF antennas 21 are equal and the widths are balanced, so as to improve the uniformity of the RF antennas 21 .

[0082] Optionally, the radio frequency of the radio frequency antenna 21 includes but is not limited to 915MHZ and 2.45GHZ.

[0083] Optionally, the material of the radio frequency antenna 21 may be silver, nickel, copper, stainless steel, nickel-iron alloy, nickel-chromium alloy, etc. The material of the support member 22 may be a material with a relatively high dielectric constant, such as aluminum oxide, aluminum nitride, high temperature resistant plastic material, or composite ceramic material.

[0084] Optionally, the material of the housing 23 includes but is not limited to high temperature resistant materials with high dielectric constants such as zirconium oxide. The surface of the housing 23 is smooth and easy to clean.

[0085] Optionally, the positioning groove 221 includes a first groove 22a, a second groove 22b and a third groove 22c, the second groove 22b is connected to one end of the first groove 22a, and the third groove 22c is connected to the other end of the first groove 22a.

[0086] The first groove 22a is disposed at the top of the support member 22. The second groove 22b and the third groove 22c are respectively disposed windingly from the top of the support member 22 to the bottom of the support member 22. The second groove 22b and the third groove 22c are disposed at intervals.

[0087] The radio frequency antenna 21 includes a first transmitting section 21a, a second transmitting section 21b and a third transmitting section 21c. The second transmitting section 21b is connected to one end of the first transmitting section 21a. The third transmitting section 21c is connected to the other end of the first transmitting section 21a.

[0088] The first emitting section 21a is disposed in the first groove 22a. The second emitting section 21b is disposed in the second groove 22b. The third emitting section 21c is disposed in the third groove 22c.

[0089] The double-helix RF antenna 21 improves the stability of being wound around the support 22 .

[0090] Optionally, in some embodiments, please refer to Figure 8 The radio frequency antenna 21 may further include a fourth transmitting segment 21d, which is connected to an end of the second transmitting segment 21b or the third transmitting segment 21c away from the first transmitting segment 21a.

[0091] The fourth emitting section 21d is suspended and spirally disposed at one end of the support member 22 close to the first opening 10b.

[0092] This embodiment adds a fourth transmitting segment 21d on the basis of the above embodiment. The fourth transmitting segment 21d is configured to adjust the power of the RF antenna 21. For example, when the transmission power of the first transmitting segment 21a, the second transmitting segment 21b, and the third transmitting segment 21c is lower than the target power, the transmission power of the RF antenna 21 can be increased by adding a spiral fourth transmitting segment 21d, or the transmission power can be adjusted by stretching and compressing the pitch of the fourth transmitting segment 21d. In addition, the spiral fourth transmitting segment 21d is convenient for saving layout space.

[0093] In some embodiments, Fig. 9 As shown, the radio frequency antenna 21 may also be a single helical structure, and the corresponding positioning groove 221 is also a single helical groove.

[0094] In one embodiment, please refer to Fig.10 An embodiment of the present application provides a heating module 100 , which includes a resonant cavity 10 and a heating component 20 .

[0095] The resonant cavity 10 is used to reflect microwaves. A resonant cavity 10a is provided in the resonant cavity 10. The resonant cavity 10a is used to contain a smoke-generating medium. The resonant cavity 10a runs through one end of the resonant cavity 10. The other end of the resonant cavity 10 is provided with a first opening 10b connected to the other end of the resonant cavity 10a.

[0096] The heating component 20 is disposed in the resonant cavity 10a through the first opening 10b. The heating component 20 includes a radio frequency antenna 21.

[0097] The heating module 100 of this embodiment uses the resonant cavity 10 to reuse as a cavity for accommodating the smoke-generating medium. Since the resonant cavity 10 can reflect the microwaves emitted by the radio frequency antenna, most of the microwaves are confined in the resonant cavity 10a, and the smoke-generating medium is heated in multiple directions, so that the heating efficiency of the heating module 100 and the uniformity of heating of the smoke-generating medium are improved without adding additional components.

[0098] Optionally, the smoke-generating medium may be a cigarette, a cigarette cartridge, or bulk tobacco, etc. The heating module 100 of the embodiment of the present application is described by taking a cigarette as an example of the smoke-generating medium, but is not limited thereto.

[0099] The heating module 100 of this embodiment is different from the above-mentioned embodiment in that the heating module 100 includes an end cover 30, and the end cover 30 includes a cover body 31, an airway limiting portion 3x and a first limiting portion 33. The cover body 31 is provided with a second opening 31a for inserting a cigarette yz. The second opening 31a is connected to the resonance cavity 10a. The airway limiting portion 3x is arranged on a side of the cover body 31 away from the resonance cavity 10a. The inner wall of the airway limiting portion 3x is located on the outer peripheral side of the side wall of the second opening 31a. A first airway 32a is formed between the inner wall of the airway limiting portion 3x and the side wall of the second opening 31a. The side wall of the second opening 31a is used to stick to the cigarette yz. The cigarette yz is provided with an air hole y1 for connecting to the first airway 32a.

[0100] The cover 31 is disposed on a side of the resonant cavity 10 away from the first opening 10 b. The first limiting portion 33 is disposed outside the resonant cavity 10 and is located on a side of the cover 31 away from the airway defining portion 3 x.

[0101] That is, when the cigarette yz has the air hole y1, the protrusion 32 can be omitted, so that the cigarette yz directly contacts the side wall of the second opening 31a.

[0102] Optionally, an air passage may be provided in the resonant cavity 10 to reduce the suction resistance, such as the structure of the resonant cavity 10 in the above embodiment, that is, the structure of the resonant cavity 10 in this embodiment is consistent with the structure of the resonant cavity 10 in the above embodiment. In addition, the assembly structure of the resonant cavity 10 and the temperature collector 40, the end cover 30 and the housing 60, the resonant cavity 10 and the insulation layer 50, and the structure of the heating assembly 20 are also consistent with the heating module 100 in the above embodiment.

[0103] Optionally, in some embodiments, no air passage is provided in the resonant cavity 10, and gas can enter the interior of the cigarette yz through the air holes. In other words, the resonant cavity 10 is not provided with a base 13 and / or a recessed portion 124, so as to achieve a simplified structure.

[0104] Correspondingly, an embodiment of the present application further provides an electronic cigarette, which includes a heating module 100 as described in any one of the above embodiments.

[0105] Optionally, the electronic cigarette may further include a battery and a circuit board.

[0106] The battery supplies power to the circuit board, which controls the generation of high-frequency alternating current, which is transmitted through the radio frequency antenna 21 and generates microwaves. The microwaves pass through the shell 23 and heat the cigarettes in the resonance cavity 10a. The microwaves are reflected in the resonance cavity 10a to improve the uniformity and efficiency of heating the cigarettes.

[0107] It should be noted that the structure of the heating module 100 of the electronic cigarette of this embodiment is similar to or the same as the structure of the heating module 100 of the above-mentioned embodiment.

[0108] The electronic cigarette in the embodiment of the present application includes a resonant cavity and a heating component. The resonant cavity is used to reflect microwaves. A resonant cavity is arranged in the resonant cavity. The resonant cavity is used to accommodate a smoke-emitting medium. The resonant cavity runs through one end of the resonant cavity. The other end of the resonant cavity is provided with a first opening connected to the other end of the resonant cavity; the heating component is arranged in the resonant cavity through the first opening, and the heating component includes a radio frequency antenna.

[0109] Among them, the electronic cigarette of this embodiment uses a resonant cavity to reuse as a cavity for accommodating a smoke-generating medium. Since the resonant cavity can reflect the microwaves emitted by the radio frequency antenna, most of the microwaves are confined in the resonant cavity, and the smoke-generating medium is heated in multiple directions, thereby improving the heating efficiency of the heating module and the uniformity of heating of the smoke-generating medium without adding additional components.

[0110] The above is a detailed introduction to a heating module and an electronic cigarette provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A heating module, characterized in that: include: A resonant cavity, the resonant cavity is used to reflect microwaves, a resonant cavity is arranged in the resonant cavity, the resonant cavity is used to accommodate a smoke-generating medium, the resonant cavity runs through one end of the resonant cavity, and the other end of the resonant cavity is provided with a first opening connected to the other end of the resonant cavity; A heating component is disposed in the resonant cavity through the first opening, and the heating component includes a radio frequency antenna.

2. The heating module according to claim 1, characterized in that: The smoke-generating medium is a cigarette, the heating module comprises an end cover, the end cover comprises a cover body, a convex portion and a first limiting portion, the cover body is provided with a second opening, the second opening is communicated with the resonance cavity, the convex portions are arranged on the side wall of the second opening and are arranged at intervals along the circumferential direction of the second opening, a first airway is formed between two adjacent convex portions, the first limiting portion is arranged on a side of the cover body close to the resonance cavity, the convex portion comprises a contact surface for contacting the cigarette, and the contact surface is located on a side of the convex portion away from the side wall of the second opening; The cover body is arranged on a side of the resonant cavity away from the first opening, the first limit portion is arranged on the outside of the resonant cavity, and in the orthographic projection direction of the heating module, the side wall of the resonant cavity is located on the outer peripheral side of the contact surface of the convex portion; The resonance cavity includes a bottom plate, a resonance wall and a base, wherein the resonance wall is connected to a side of the bottom plate close to the end cover, and the base is arranged on the bottom plate and located on a side of the bottom plate away from the end cover, and the bottom plate and the resonance wall define the resonance cavity, and the bases are arranged at intervals along the circumferential direction of the resonance cavity, and a second airway is formed between two adjacent bases, and the base is used to support the cigarette.

3. The heating module according to claim 1, characterized in that: The smoking medium is a cigarette, the heating module comprises an end cover, the end cover comprises a cover body, an airway limiting part and a first limiting part, the cover body is provided with a second opening for inserting the cigarette, the second opening is communicated with the resonance cavity, the airway limiting part is arranged on a side of the cover body away from the resonance cavity, the inner wall of the airway limiting part is located on the outer peripheral side of the side wall of the second opening, a first airway is formed between the inner wall of the airway limiting part and the side wall of the second opening, the side wall of the second opening is used to stick to the cigarette, and the cigarette is provided with an air hole for communicating with the first airway; The cover body is arranged on a side of the resonance cavity away from the first opening, and the first limiting portion is arranged outside the resonance cavity and located on a side of the cover body away from the airway limiting portion.

4. The heating module according to claim 3, characterized in that: The resonance cavity includes a bottom plate, a resonance wall and a base. The resonance wall is connected to the side of the bottom plate close to the end cover. The base is arranged on the bottom plate and located on the side of the bottom plate away from the end cover. The bottom plate and the resonance wall define the resonance cavity. The bases are spaced apart along the circumferential direction of the resonance cavity. A second airway is formed between two adjacent bases. The base is used to support the cigarette.

5. The heating module according to any one of claims 2 to 4, characterized in that: The resonant wall comprises a main body and a flared portion connected to a side of the main body close to the end cover, and the inner diameter of the flared portion is greater than the inner diameter of the main body.

6. The heating module according to claim 5, characterized in that: The width of the flared portion decreases vertically from the base toward the end cover.

7. The heating module according to claim 6, characterized in that: A concave portion is formed on one side of the resonance wall away from the resonance cavity, and a side of the concave portion protruding toward the resonance cavity is used to abut against the cigarette; The heating module also includes a temperature collector, and the temperature collector is arranged in the recessed portion.

8. The heating module according to claim 7, characterized in that: The heating module also includes a heat insulation layer, which is arranged around the outer periphery of the resonance wall. A positioning portion is arranged on one side of the heat insulation layer close to the resonance wall, and the positioning portion is arranged in the recessed portion.

9. The heating module according to claim 8, characterized in that: The heating module further comprises a shell, which is sleeved on the outer peripheral side of the heat insulation layer; The end cover comprises a second limiting portion, which is arranged on a side of the cover body close to the heat insulation layer and located on the outer peripheral side of the first limiting portion, the resonant cavity comprises a bottom plate, a resonant wall and a lug, the resonant wall is arranged and connected to a side of the bottom plate close to the end cover, and the lug is connected and arranged on a side of the resonant wall away from the first opening and the end cover; The shell is sleeved on the outer peripheral side of the second limiting portion, one end of the shell abuts against the edge of the cover body, and the other end of the shell abuts against the lug.

10. The heating module according to any one of claims 1 to 3, characterized in that: The heating component includes a shell and a support member. A positioning groove is arranged on the circumference of the support member. The positioning groove is threaded. The radio frequency antenna is arranged around the circumference of the support member and is located in the positioning groove. The shell is sleeved on the outer circumference of the support member.

11. The heating module according to claim 10, characterized in that: The positioning groove comprises a first groove, a second groove and a third groove, the second groove is connected to one end of the first groove, and the third groove is connected to the other end of the first groove; The first groove is arranged at the top of the support member, the second groove and the third groove are respectively arranged from the top of the support member to the bottom of the support member, and the second groove and the third groove are arranged at intervals; The radio frequency antenna comprises a first transmitting segment, a second transmitting segment and a third transmitting segment, wherein the second transmitting segment is connected to one end of the first transmitting segment, and the third transmitting segment is connected to the other end of the first transmitting segment; The first emitting section is arranged in the first groove, the second emitting section is arranged in the second groove, and the third emitting section is arranged in the third groove.

12. The heating module according to claim 11, characterized in that: The radio frequency antenna further includes a fourth transmitting segment, and the fourth transmitting segment is connected to an end of the second transmitting segment or the third transmitting segment away from the first transmitting segment; The fourth emitting section is suspended in the air and spirally arranged at one end of the supporting member close to the first opening.

13. An electronic cigarette, characterized in that: Comprising a heating module as described in any one of claims 1-12.

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