Electronic cigarette

Abstract

An electronic cigarette comprises a main unit 100 with two installation cavities 110. A first smoking structure for the e-cigarette comprises two first cartridges 200 plug-fitted into the respective i

Description

TECHNICAL FIELD The present application relates to the technical field of electronic cigarettes, and in particular, to an electronic cigarette. BACKGROUND Electronic cigarettes are an electronic product that forms smoke through non-combustible atomization of e-liquid. In related art, an electronic cigarette includes a main unit and a cartridge. A power supply is provided in the main unit. A heating structure, an e-liquid guiding structure, and an e-liquid storage chamber for storing e-liquid are provided in the cartridge. The power supply is used to supply power to the heating structure, the e-liquid guiding structure leads out the e-liquid in the e-liquid storage chamber, the heating structure and the e-liquid guiding structure are arranged closely, and the heating structure heats up to atomize the e-liquid for smoking. It is to be understood that each cartridge can only store one flavor of e-liquid, thus each electronic cigarette can only provide one flavor for smoking at a time. SUMMARY The present application aims to solve at least one of the technical problems in the existing technology. To this end, the present application proposes an electronic cigarette that can install two first cartridges of different flavors at the same time to smoke multiple flavors. An electronic cigarette according to an embodiment of the present application includes a main unit and a first smoking structure. The main unit is provided with two installation grooves. The first smoking structure includes two first cartridges that correspond to the installation grooves respectively and are plug-fitted with the respective installation grooves, where each first cartridge includes a housing, a heating component and a heat insulation structure, the heating component is arranged in the housing, a first e-liquid storage chamber is provided between the heating component and the housing, the heating component is provided with an atomization chamber, the housing is provided with a mouthpiece, the atomization chamber is communicated with the first e-liquid storage chamber and communicated with the mouthpiece, the heat insulation structure is provided between the housing and the heating component, and the main unit is electrically connected to the heating component. The electronic cigarette according to an embodiment of the present application has at least the following beneficial effects. Users can inhale the smoke from two first cigarettes of different flavors at the same time, experiencing a third flavor since the two flavors are mixed. In addition, users can also inhale the smoke from one of the first cigarettes separately. It is also to be understood that since the first cartridges are detachably connected to the main unit, users can easily replace one or both of the cartridges to change the mixed flavor. In addition, the heating component will heat up and atomize e-liquid. The heat insulation structure is provided between the heating component and the housing to block the heat transfer between the heating component and the housing, so as to prevent the users' smoking experience from being affected by the temperature of the housing. Additional aspects and advantages of the present application will be set forth in part in the description which follows, and in part will be obvious from the description which follows, or may be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS The present application will be further described below in conjunction with the accompanying drawings and embodiments, in which FIG. lisa schematic structural diagram of an electronic cigarette according to an embodiment of the present application, which includes a main unit and a first smoking structure; FIG. 2 is a cross-sectional view of the electronic cigarette shown in FIG. 1; FIG. 3 is an exploded view of the electronic cigarette shown in FIG. 1; FIG. 4 is a cross-sectional view of a first cartridge in FIG. 1; FIG. 5 is an enlarged view of A in FIG. 4; FIG. 6 is a schematic structural diagram of an electronic cigarette according to an embodiment of the present application, in which two first cartridges are in a reversed state; FIG. 7 is a schematic structural diagram of an electronic cigarette according to an embodiment of the present application, which includes a main unit and a second smoking structure; FIG. 8 is a cross-sectional view of the electronic cigarette shown in FIG. 7; FIG. 9 is a cross-sectional view of the first cartridge in FIG. 1 from another direction; and FIG. 10 is an exploded view of a first fixing portion and a heating component in FIG. 1. Reference numerals: -j- main unit 100, installation groove 110, clamping plate 120, power supply 130, first power connection portion 140; power supply module 150, wireless charging structure 151, wired charging structure 152; second magnet 160; first cartridge 200, housing 210, first e-liquid storage chamber 211, mouthpiece 212, air inlet hole 213, first e-liquid filling port 214, first cover plate 215, air guiding groove 2151; airway 216, sealed chamber 217; first fixing portion 220, atomization chamber 221, e-liquid outlet 222; first e-liquid guiding structure 230, accommodation chamber 231, smoke outlet 232, air inlet 233; annular flow channel 234; first heating structure 240, circulation channel 241; second power connection portion 250; first magnet 260; heat insulation structure 270; bracket structure 280, through hole 281, through groove 282; pipe fitting 290; second cartridge 300, second e-liquid storage chamber 301, e-liquid storage tank 400, storage chamber 401, second e-liquid filling port 402, slot 403. DETAILED DESCRIPTION Embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout denote the same or similar elements or elements having the same or similar functions. The following embodiments described with reference to the accompanying drawings are exemplary and serve only to explain the present application, and should not be construed as limiting the present application. In the description of the present application, description with reference to the terms such as "an embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" implies that specific characteristics, structures, materials or features described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic expression of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific characteristics, structures, materials or features described can be combined in any one or more embodiments or examples in a suitable manner. Referring to FIGS. 1 to 5, an electronic cigarette according to an embodiment of a first aspect of the present application includes: a main unit 100 and a first smoking structure. The main unit 100 is provided with two installation grooves 110. Specifically, the installation grooves 110 are defined at an upper end of the main unit 100 and are arranged adjacent to each other. The first smoking structure includes two first cartridges 200 that correspond to the installation grooves 110 respectively and are plug-fitted with the installation grooves 110. It should be noted that the main unit 100 is used to supply power to the first cartridges 200, so that the first cartridges 200 atomize the e-liquid to generate smoke. Specifically, the two first cartridges 200 store different flavors of e-liquid. Since the first cartridges 200 are disposed in the installation grooves 110 in a pluggable manner, after the e-liquid in the cartridges is used up, the cartridges can be pulled out from the installation grooves 110 and replaced with new cartridges, so that the main unit 100 can be reused, reducing resource waste. Moreover, the first cartridges 200 of different flavors can be replaced at any time. Since the electronic cigarette of the present application is provided with two first cartridges 200, users can inhale the smoke from the first cartridges 200 of two different flavors at the same time, experiencing a third flavor since the two flavors are mixed. In addition, users can also inhale the smoke from one of the first cigarettes 200 separately. It is also to be understood that since the first cartridges 200 are detachably connected to the main unit 100, users can easily replace one or both of the cartridges to change the mixed flavor. Each first cartridge 200 includes a housing 210, a first fixing portion 220, a heating component, and a heat insulation structure 270. The heating component is arranged in the housing 210, and a first e-liquid storage chamber 211 is provided between the heating component and the housing 210. The heating component forms an atomization chamber 221 internally, the housing 210 is provided with a mouthpiece 212, and the atomization chamber 221 is communicated with the first e-liquid storage chamber 211 and communicated with the mouthpiece 212. The heat insulation structure 270 is provided between the housing 210 and the heating component. The main unit 100 is electrically connected to the heating component. It is to be understood that the e-liquid in the first e-liquid storage chambers 211 can enter the heating components, the heating components heat up and atomize the e-liquid in the first e-liquid storage chambers 211 to form smoke in the atomization chambers 221, and the smoke can pass through the mouthpieces 212 for inhalation. It is to be understood that the heating components generate a certain amount of heat, and the heat insulation structures 270 can block the heating components and the housings 210 to reduce the heat transferred from the heating components to the housings 210, so as to prevent the housings 210 from overheating and affecting the users' feelings of use. Specifically, the heating component includes a first fixing portion 220, a first e-liquid guiding structure 230, a first heating structure 240, and a bracket structure 280. The first fixing portion 220 is provided in the housing 210, and the first e-liquid storage chamber 211 is provided between the first fixing portion 220 and the housing 210. The atomization chamber 221 is provided inside the first fixing portion 220, multiple e-liquid outlets 222 are provided in the circumferential direction of the first fixing portion 220, and the atomization chamber 221 is communicated with the first e-liquid storage chamber 211 through the e-liquid outlets 222 and is communicated with the mouthpiece 212. The first e-liquid guiding structure 230 is provided in the atomization chamber 221 and can cover the e-liquid outlets 222, and the first heating structure 240 is provided in the first e-liquid guiding structure 230. The main unit 100 is electrically connected to the first heating structure 240. The heat insulation structure 270 is provided between the first fixing portion 220 and the housing 210. It can be understood that e-liquid is stored in the first e-liquid storage chambers 211. Since the first e-liquid storage chambers 211 are connected to the atomization chambers 221 through the e-liquid outlets 222, the e-liquid can enter the atomization chambers 221 through the e-liquid outlets 222. Since the first e-liquid guiding structures 230 provided in the atomization chambers 221 can cover the e-liquid outlets 222, the e-liquid flows to the first e-liquid guiding structures 230 through the e-liquid outlets 222, and the first e-liquid guiding structures 230 absorb the e-liquid and guide same to the first heating structures 240. Specifically, with regard to the specific arrangement of the first e-liquid guiding structures 230, the first e-liquid guiding structures 230 are e-liquid guiding cotton in this embodiment, and may also be chemical fiber cotton, absorbent cotton, etc. in other embodiments. The first heating structures 240 provided in the first e-liquid guiding structures 230 generate heat after being energized, so that the e-liquid is heated and atomized, thereby generating smoke. Specifically, the first heating structures 240 can absorb the e-liquid to directly atomize the absorbed e-liquid. For example, the first heating structures 240 include ceramic blocks and heating wires. The heating wires are embedded in the ceramic blocks which can absorb the e-liquid, and the heating wires can generate heat after being energized to atomize the e-liquid on the ceramic blocks. Then, the smoke in the atomization chambers 221 will be disbursed by the mouthpieces 212 for inhalation. It is to be understood that the first e-liquid guiding structures 230 are provided in the first fixing portions 220, and the first heating structures 240 are provided in the first e-liquid guiding structures 230. The occupied space is reduced by the layer-by-layer surrounding structure. It is also to be understood that the first heating structures 240 are provided in the first e-liquid guiding structures 230, so that the first e-liquid guiding structures 230 surround the first heating structures 240 to increase the heating range of the first e-liquid guiding structures 230, thereby improving the atomization effect. The heat insulation structures 270 are provided between the first fixing portions 220 and the housings 210. It is to be understood that the first heating structures 240 are provided inside the first fixing portions 220 to atomize the e-liquid, whereby the first fixing portions 220 are made of high temperature resistant material, such as metal. The housings 210 are provided with mouthpieces 212 for smoking, so that the smoker's mouth will come into contact with the housings 210. In order to prevent the heat of the first fixing portions 220 from being transferred to the housings 210, the heat insulation structures are provided between the first fixing portions 220 and the housings 210. For example, the heat insulation structures 270 are made of silicone. Specifically, one end of each of the heat insulation structures 270 is arranged around the respective first fixing portion 220, and the other end is inserted into the respective airway 216, thereby fixing the heat insulation structures 270. Referring to FIGS. 4, 5 and 10, each bracket structure 280 is provided in the first fixing portion 220 and provided with multiple through holes 281 and a through groove 282, and the e-liquid outlets 222 correspond to the through holes 281 or the through groove 282. The first heating structures 240 are provided in the bracket structures 280, and the first e-liquid guiding structures partially cover the bracket structures 280 and partially pass through the through grooves 282 to cover the first heating structures 240. It can be understood that in this embodiment, referring to FIG. 10, there are four e-liquid outlets 222 and three through holes 281. Each through hole 281 corresponds to one e-liquid outlet 222, and one through groove 282 corresponds to one e-liquid outlet. Therefore, after coming out of the e-liquid outlets 222, the e-liquid can easily enter the bracket structure 280 through the through holes 281, so that the first heating structure 240 can atomize the e-liquid. It should be understood that in this embodiment, the first e-liquid guiding structure 230 is an e-liquid guiding cotton wound in circles. The first e-liquid guiding structure 230 is partially wound around the bracket structure 280 and partially passes through the through groove 282 to be wound around the first heating structure 240. The through groove 282 can be used to pass through the first e-liquid guiding structure 230. It is to be noted that the through-groove 282 is relatively large in the height direction and larger than the size of the through holes 281. Providing only one through-groove 282 can ensure the normal installation of the first e-liquid guiding structure 230 and at the same time reduce the risk of e-liquid leakage from the through-groove 282. In order to prevent the e-liquid in the first e-liquid storage chamber 211 from being not exhausted, referring to FIGS. 4 and 5, the e-liquid outlets 222 are provided corresponding to the bottom of the first e-liquid storage chamber 211 to ensure that the e-liquid in the first e-liquid storage chamber 211 can be exhausted. In order to enable the first cartridges 200 to be reused, referring to FIG. 4. outer walls of the housings 210 are provided with first e-liquid filling ports 214 communicated with the first e-liquid storage chambers 211, and first cover plates 215 that are capable of being detached from the housings 210 are provided corresponding to the first e-liquid filling ports 214. The first cover plates 215 can close or open the first e-liquid filling ports, air guiding grooves 2151 are provided on the movable ends of the first cover plates 215 facing the sides of the first e-liquid storage chambers, and the groove walls of the air guiding grooves 2151 are provided with slopes inclined toward the first e-liquid filling ports. It can be understood that after the e-liquid in the first e-liquid storage chambers 211 is used up, the first cover plates 215 can be opened, and the first e-liquid storage chambers 211 can be filled with the e-liquid through the first e-liquid filling ports 214, so that the first cartridges 200 can be reused. In addition, e-liquid of different flavors can be injected into the first e-liquid storage chambers 211 through the first e-liquid filling ports 214, so as to replace the e-liquid or mix the e-liquid. Specifically, the fixed ends of the first cover plates 215 are fixedly connected to the housings 210, the movable ends of the first cover plates 215 are detachably connected to the housings 210, and the movable ends of the first cover plates 215 can rotate relative to the fixed ends of the first cover plates 215. Therefore, when the first cover plates 215 needs to be closed after the first e-liquid storage chambers 211 are filled with the e-liquid, the movable ends of the first cover plates 215 rotate toward the direction close to the first e-liquid storage chambers 211. Since movable ends of the first cover plates 215 are provided with the air guiding grooves 2151, the volume of the first cover plates 215 is reduced, such that when the first cover plates 215 are closed, the problem that too much air is squeezed into the first e-liquid storage chambers 211 can be avoided, which would otherwise cause the e-liquid in the first e-liquid storage chambers 211 to be squeezed into the atomization chambers 221, resulting in liquid leakage. Furthermore, since slopes are provided on the groove walls of the air guiding grooves 2151, when the movable ends of the first cover plates 215 gradually enter the first e-liquid storage chambers 211, the air in the first e-liquid storage chambers 211 flows to the outside along the slopes which serves to guide the airflow. With regard to the specific arrangement of the first e-liquid guiding structures 230, referring to FIGS. 4 and 5, the interiors of the first e-liquid guiding structures 230 are hollow to form accommodation chambers 231, and both ends of the first e-liquid guiding structures 230 are respectively provided with smoke outlets 232 and air inlets 233 that are communicated with the accommodation chambers 231. The first heating structures 240 are placed in the accommodation chambers 231, and the outer peripheral sides of the first e-liquid guiding structures 230 block the e-liquid outlets 222. The housings 210 are provided with air inlet holes 213 communicated with the outside, and the air inlets 233 are communicated with the air inlet holes 213. It can be understood that external airflow can enter the housings 210 through the respective air inlet holes 213, and the airflow passes through the air inlet 233, the accommodation chamber 231, the smoke outlet 232 and the mouthpiece 212 in sequence. Since the airflow enters the accommodation chamber 231, to ensure the effect of the first heating structures 240 atomizing the e-liquid, the atomized smoke permeates the accommodation chamber 231. Then, users can inhale the smoke when sucking the mouthpieces 212. Specifically, the first e-liquid guiding structures 230 are cylindrical, and the interiors of the first e-liquid guiding structures 230 are hollow, so that the cross sections thereof are annular. About the specific arrangement of the first heating structures 240, referring to FIG. 5, the interiors of the first heating structures 240 are hollow to form circulation channels 241. The circulation channels 241 are communicated with the smoke outlets 232 and the air inlets 233. It can be understood that by making the interiors of the first heating structures 240 hollow to form the circulation channels 241, the airflow can pass through the circulation channels 241, and the flow cross-section of the airflow flowing through the atomization chambers 221 is increased, making the airflow flow smoother, increasing the smoke outflow, and ensuring the smoking taste. Specifically, the first heating structures 240 are cylindrical, and the interiors of the first heating structures 240 are hollow, so that the cross sections thereof are circular. More specifically, the ceramic blocks have a cylindrical shape. With regard to the connection relationship between the first heating structures 240 and the first e-liquid guiding structures 230, in this embodiment, referring to FIG. 5, the outer peripheral sides of the first heating structures 240 are spaced apart from the inner sides of the respective accommodation chambers 231. It can be understood that since the outer peripheral sides of the first heating structures 240 are spaced apart from the inner sides of the accommodation chambers 231, annular flow channels 234 are provided between the first heating structures 240 and the respective first e-liquid guiding structures 230, so that the e-liquid can flow into the annular flow channels 234, and the first heating structures 240 can heat the e-liquid in the annular flow channels 234 to be atomized. It is to be understood that the first heating structures 240 can absorb the e-liquid, and the smoke can not only be generated and flow out from the annular flow channels 234, but also be generated and flow out from the circulation channels 241, so as to increase the concentration and the flow rate of the smoke. In other embodiments, the first heating structures 240 can also be in close contact with the respective first e-liquid guiding structures 230, so as to increase the e-liquid guiding effect of the first e-liquid guiding structures 230. With regard to the arrangement of the mouthpieces 212, referring to FIGS. 1 and 4, the mouthpieces 212 are provided at corner ends of the respective housings 210. It can be understood that the mouthpieces 212 are provided at comer ends of the first cartridges 200 to facilitate user smoking. It is also to be understood that airways 216 are provided between the mouthpieces 212 and the respective atomization chambers 221, and the mouthpieces 212 are tilted, resulting in longer airways 216. However, the first e-liquid guiding structures 230 are provided in the first fixing portions 220, and the first heating structures 240 are provided in the first e-liquid guiding structures 230, that is, the first fixing portions 220, the first e-liquid guiding structures 230 and the first heating structures 240 are stacked and wrapped in the horizontal direction to utilize the space in the horizontal direction, reducing the use of height space, such that the atomization chambers 221 can be close to the respective mouthpieces 212, so as to offset the influence of the longer airways 216 caused by the inclined setting of the mouthpieces 212, and make the smoke sprayed out from the mouthpieces 212 without too much hindrance. In order to facilitate the insertion of the first cartridges 200 relative to the respective installation grooves 110, in this embodiment, referring to FIGS. 1 and 2, the two first cartridges 200 have the same shape, the two installation grooves 110 have the same shape, and the cartridges 200 can be inserted into any of the installation grooves 110. It can be understood that the two first cartridges 200 have the same shape, so that the first cartridges 200 can be inserted into any of the installation grooves 110 to facilitate the insertion of the first cartridges 200. It is also to be understood that the first cartridges 200 have the same shape, and the first cartridges 200 of all flavors use the same shape of the first cartridges 200, which can facilitate the production of the first cartridges 200 and does not require additional molds. Moreover, one of the first cartridges 200 can be replaced with the first cartridge 200 of any flavor at will after the e-liquid therein is used up, and there is no need to consider the problem of the first cartridges 200 not matching the installation grooves 110. In other embodiments, the first cartridges 200 may also adopt different shapes. In order to facilitate the separate smoking or mixed smoking of the two first cartridges 200, referring to FIGS. 1 and 6, the first cartridges 200 placed in the installation grooves 110 have a forward state and a reverse state. Referring to FIG. 1, when the two first cartridges 200 are both in the forward state, the mouthpieces 212 of the two first cartridges 200 are arranged away from each other. Referring to FIG. 6, when the two first cartridges 200 are in the reversed state, the mouthpieces 212 of the two first cartridges 200 are arranged opposite to each other. Specifically, the first cartridges 200 in the forward state are converted to the reversed state after rotating 180 degrees. It can be understood that the installation grooves 110 can be adapted to the first cartridges 200 in the forward state, and can also be adapted to the first cartridges 200 in the reverse state. It can be understood that when the two first cartridges 200 are both in the forward state, the mouthpieces 212 of the two first cartridges 200 are arranged away from each other, so that the mouthpieces of the two first cartridges 200 are respectively located in two comer positions of the electronic cigarette of the present application. In this state, users can conveniently consume one of the first cartridges 200 separately. When the two first cartridges 200 are both in the reversed state, the mouthpieces 212 of the two first cartridges 200 are arranged opposite to each other, so that the mouthpieces of the two first cartridges 200 are centered in the middle of the electronic cigarette of the present application. In this state, users can conveniently consume the two first cartridges 200 at the same time. In order to realize the above application scenarios of separate smoking or mixed smoking, the electronic cigarette of the present application further includes a control module. The control module is provided in the main unit 100 and can control the on or off of the electrical connection between the power supply 130 and the two first cartridges 200. For example, the control module controls the power supply 130 to be electrically connected to the two first cartridges 200 at the same time. Meanwhile, the two first cartridges 200 are in the reversed state, and the mouthpieces 212 of the two first cartridges 200 are close to each other, are located in the middle of electronic cigarettes, and can both produce smoke, so as to achieve mixed smoking. For another example, the control module controls the power supply 130 to be electrically connected to one of the first cartridges 200, cuts off the power supply to the other first cartridge 200, and makes the energized first cartridge 200 in the forward state, so that the mouthpieces 212 of the first cartridges 200 are located at the corner ends to facilitate users to smoke separately. Specifically, the control module can control the power supply state of the power supply 130 to make the heating states of the first heating structures 240 in the two first cartridges 200 different, so that the concentration of the atomized smoke is inconsistent. Thus, during mixed smoking, more smoke with different tastes is mixed by controlling the smoke concentration in the two first cartridges 200. Specifically, referring to FIG. 1, the electronic cigarette of the present application is square in shape, and is in a flat square shape to reduce the volume of the electronic cigarette and make it easy to carry and hold. It can be understood that the electronic cigarette of the present application is set in a square shape, so that the upper end thereof has two corners for placing the mouthpieces 212 of the two first cartridges 200, and thus the mouthpieces 212 of the two first cartridges 200 can be placed at two corners of the electronic cigarette of the present application. Referring to FIGS. 7 and 8, the electronic cigarette of the present application further includes a second smoking structure. The second smoking structure includes a second cartridge 300 and an e-liquid storage tank 400 that are connected to each other. The e-liquid storage tank 400 is provided with a storage chamber 401 for storing e-liquid, the storage chamber 401 is communicated with a second e-liquid storage chamber 301 of the second cartridge 300, and the second cartridge 300 and the e-liquid storage tank 400 are plug-fitted respectively corresponding to one of the installation grooves 110. The main unit 100 can selectively dock with one of the first smoking structure and the second smoking structure. It can be understood that by adding a second smoking structure, the usage scenarios of the electronic cigarette of the present application are expanded. For example, when users do not need to have smoke of two flavors or mixed flavors, the first smoking structure can be disassembled from the main unit 100 and replaced with the second smoking structure. The second smoking structure is provided with a second cartridge 300 and an e-liquid storage tank 400, and the second e-liquid storage chamber 301 of the second cartridge 300 is communicated with the e-liquid storage tank 400 to increase the e-liquid storage capacity of the second smoking structure, so as to increase the number of puffs. Specifically, in order to enable the second cartridge 300 to be reused, the e-liquid storage tank 400 is provided with a second e-liquid filling port 402. Specifically, in this embodiment, the second cartridge 300 has the same internal structure as the first cartridges 200. The difference is that a communication port communicated with the e-liquid storage tank 400 is provided in the outer wall of the second cartridge 300. In other embodiments, the second cartridge 300 may also have other structural forms, as long as it can store e-liquid and atomize e-liquid. In the same way, the above first cover plate 215 may also be provided corresponding to the second e-liquid filling port 402 to open or close the second e-liquid filling port 402. In order to facilitate fixing the first smoking structure or the second smoking structure, referring to FIGS. 2 and 8, a clamping plate 120 is provided on the main unit 100, and the clamping plate 120 separates the two installation grooves 110. When the two first cartridges 200 are inserted into the installation grooves 110, the clamping plate 120 separates the two first cartridges 200, so as to prevent the first cartridges 200 from being squeezed against each other and causing damage. Similarly, when the second cartridge 300 and the e-liquid storage tank 400 are inserted, the clamping plate 120 separates the second cartridge 300 and the e-liquid storage tank 400. In some embodiments, referring to FIG. 8, the second cartridge 300 is integrated with the e-liquid storage tank 400. In order to prevent the clamping plate 120 from affecting the insertion of the second smoking structure, a slot 403 is provided between the second cartridge 300 and the e-liquid storage tank 400. The slot 403 is snap-fitted with the clamping plate 120, which also ensures that the second smoking structure can be inserted and improves the installation stability. It is also to be understood that in some other embodiments, the second cartridge 300 and the e-liquid storage tank 400 can also be detached from each other in a separate design. In addition, referring to FIGS. 2 and 8, first magnets 260 may be provided on the sides of the first smoking structure and the second smoking structure for the installation grooves 110 to be inserted. For example, first magnets 260 are provided at the bottoms of the first cartridges 200, the second cartridge 300 and the e-liquid storage tank 400. Second magnets 160 are correspondingly provided in the installation grooves 110. The first magnets 260 and the second magnets 160 are attracted to each other, so that the first smoking structure and the second smoking structure are stably connected to the main unit 100. With regard to the electrical connection between the main unit 100 and the first cartridges 200, the main unit 100 is internally provided with a power supply 130, two symmetrically arranged first power connection portions 140 are provided at the bottoms of the installation grooves 110, the two first power connection portions 140 are symmetrically arranged at the bottoms of the installation grooves 110, two symmetrically arranged second power connection portions 250 are provided at the bottoms of the first cartridges 200, the power supply 130 is electrically connected to the first power connection portions 140, the first power connection portions 140 can be electrically connected to any of the second power connection portions 250, and the second power connection portions 250 are electrically connected to the heating structures. It can be understood that when the first cartridges 200 are inserted into the installation grooves 110, the second power connection portions 250 on the first cartridges 200 contact the first power connection portions 140, and the power supply 130 can supply power to the heating structures through the first power connection portions 140 and the second power connection portions 250. It is to be understood that since the two first power connection portions 140 are symmetrically provided at the bottom of each of the installation grooves 110, that is, the two first power connection portions 140 are symmetrically provided with respect to the center of the bottom of each of the installation grooves 110, and the two power connection portions 250 are symmetrically provided at the bottom of each of the first cartridges 200, that is, the two second power connection portions 250 are symmetrically provided with respect to the center of the bottom of each the first cartridges 200, when the first cartridges 200 are in the forward state or reversed state, the power supply 130 can maintain power supply to the first cartridges 200. It is to be noted that in some usage environments, the user carrying the electronic cigarette of the present application may go from a low-temperature outdoor environment to a high-temperature indoor environment, or in other scenarios where the user may undergo hot and cold exchange, the air pressure in the first e-liquid storage chambers 211 may change due to changes in temperature, which could cause excessive e-liquid to leak from the e-liquid outlets 222 of the first e-liquid storage chambers 211, leading to leakage of the first cartridges 200. In order to reduce the impact brought by temperature difference, in this embodiment, referring to FIG. 9, a sealed chamber 217 is formed in each of the housings, and the sealed chamber 217 is communicated with the first e-liquid storage chamber 211 through a pipe fitting 290. It is to be understood that when the air pressure in the first e-liquid storage chamber 211 changes, the e-liquid in the first e-liquid storage chamber 211 enters the sealed chamber 217 through the pipe fitting 290, reducing the risk of e-liquid leaking from the e-liquid outlets 222. After the air pressure returns to normal, the e-liquid in the sealed chamber 217 can be sucked back into the first e-liquid storage chamber 211 through the pipe fitting 290. In order to charge the power supply 130, referring to FIG. 3, a power supply module 150 is provided in the main unit 100. The power supply module 150 is electrically connected to the power supply 130 and is used to supply power to the power supply 130. The power supply module 150 includes one or both of a wired charging structure 152 and a wireless charging structure 151. For example, the power supply module 150 includes both the wired charging structure 152 and the wireless charging structure 151, so that the wired charging structure 152 can be connected to an external electrical interface through a cable to achieve wired charging, and the wireless charging structure 151 can also be connected to an external wireless charger to achieve wireless charging. In other embodiments, only one of the wired charging structure 152 and the wireless charging structure 151 may be included. Specifically, referring to FIG. 3, a receiving coil of the wireless charging structure 151 is planar to reduce its occupied space. A magnetic isolation sheet is provided at the bottom of the receiving coil, and the casing of the receiving coil is made of non-metallic material. The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various variations can also be made without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments may be combined with each other without conflict.

Claims

1. An electronic cigarette, comprising:a main unit, provided with two installation grooves; anda first smoking structure, comprising two first cartridges that correspond to the installation grooves respectively and are plug-fitted with the respective installation grooves, wherein each of the first cartridges comprises a housing, a heating component and a heat insulation structure, the heating component is arranged in the housing, a first e-liquid storage chamber is provided between the heating component and the housing, the heating component is provided with an atomization chamber, the housing is provided with a mouthpiece, the atomization chamber is communicated with the first e-liquid storage chamber and communicated with the mouthpiece, the heat insulation structure is provided between the housing and the heating component, and the main unit is electrically connected to the heating component.

2. The electronic cigarette according to claim 1, wherein the heating component comprises a first fixing portion, a first e-liquid guiding structure, a first heating structure and a bracket structure, the first e-liquid storage chamber is provided between the first fixing portion and the housing, the atomization chamber is provided inside the first fixing portion, multiple e-liquid outlets are provided in a circumferential direction of the first fixing portion, the atomization chamber is communicated with the first e-liquid storage chamber through the e-liquid outlets, the first e-liquid guiding structure is provided in the atomization chamber and is capable of covering the e-liquid outlets, the first heating structure is provided in the first e-liquid guiding structure, the main unit is electrically connected to the first heating structure, and the heat insulation structure is provided between the housing and the first fixing portion;wherein the bracket structure is provided in the first fixing portion and provided with multiple through holes and a through groove, the e-liquid outlets correspond to the through holes or the through groove, the first heating structure is provided in the bracket structure, the first e-liquid guiding structure partially covers the bracket structure and partially passes through the through groove to cover the first heating structure.

3. The electronic cigarette according to claim 1, wherein the mouthpiece is provided at a corner end of the housing.

4. The electronic cigarette according to claim 1, wherein the two first cartridges have the same shape, the two installation grooves have the same shape, and the first cartridges are capable of being inserted into any of the installation grooves.

5. The electronic cigarette according to claim 1, wherein the first cartridges placed in therespective installation grooves have a forward state and a reversed state, wherein when the two first cartridges are both in the forward state, the mouthpieces of the two first cartridges are arranged away from each other, and when the two first cartridges are both in the reversed state, the mouthpieces of the two first cartridges are arranged opposite to each other.

6. The electronic cigarette according to claim 1, further comprising a second smoking structure, wherein the second smoking structure comprises a second cartridge and an e-liquid storage tank that are connected to each other, the e-liquid storage tank is provided with a storage chamber for storing e-liquid, the storage chamber is communicated with a second e-liquid storage chamber of the second cartridge, and the second cartridge and the e-liquid storage tank are plug-fitted respectively with one of the installation grooves;wherein the main unit is capable of being selectively docked with one of the first smoking structure and the second smoking structure.

7. The electronic cigarette according to claim 6, wherein the second cartridge is integrated with the e-liquid storage tank, a slot is provided between the second cartridge and the e-liquid storage tank, a clamping plate is provided on the main unit and configured to separate the two installation grooves, and the clamping plate is snap-fitted with the slot.

8. The electronic cigarette according to claim 1, wherein an outer wall of the housing is provided with a first e-liquid filling port communicated with the first e-liquid storage chamber, a first cover plate that is capable of being detached from the housing is provided corresponding to the first e-liquid filling port, the first cover plate is configured for closing or opening the first e-liquid filling port, an air guiding groove is provided at a movable end of the first cover plate facing the first e-liquid storage chamber, and a groove wall of the air guiding groove is provided with a slope inclined toward the first e-liquid filling port.

9. The electronic cigarette according to claim 1, wherein a sealed chamber is provided in the housing, and the sealed chamber is communicated with the first e-liquid storage chamber through a pipe fitting.

10. The electronic cigarette according to claim 1, wherein a power supply module and a power supply are provided in the main unit, the power supply module is electrically connected to the power supply for supplying power to the power supply, and the power supply module comprises one or both of a wired charging structure and a wireless charging structure.

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