Heating structure and electronic cigarette

Abstract

The invention discloses a heating structure and an electronic cigarette, and relates to the technical field of electronic smoking sets, the heating structure comprises a mounting assembly and a heating assembly, the mounting assembly is internally provided with a plurality of accommodating cavities arranged at intervals, and the mounting assembly is provided with air suction ports communicated with the accommodating cavities; and the multiple heating assemblies are arranged, one heating assembly is independently and correspondingly arranged in each containing cavity, the heating assemblies form an atomization cavity with an air inlet, the atomization cavity is communicated with the air suction opening, and the interior of the atomization cavity is used for containing a smoke cartridge pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarette devices, and particularly to a heating structure and an electronic cigarette. Background Art

[0002] At present, the common electronic cigarette products on the market mainly use a single heating tube structure to locally heat a special tobacco product to achieve the function of releasing inhalable aerosol at a low temperature. This single heating tube heating method has some inherent characteristics.

[0003] For example, in terms of the usage process of traditional single heating tube heated electronic cigarette products, after finishing one cigarette, it is necessary to replace the cigarette stick to carry out the next smoking. This operation of replacing the cigarette stick is rather cumbersome, which not only increases the use cost, but also causes the unused tobacco to be damp and deteriorated due to contact with external air, affecting the overall experience of the user. Summary of the Invention

[0004] The main object of the present invention is to propose a heating structure and an electronic cigarette, aiming to solve the problem that the existing heating structure can only heat a single cigarette cartridge tube.

[0005] To achieve the above object, the heating structure proposed by the present invention includes:

[0006] An installation component, which forms a plurality of accommodating cavities arranged at intervals inside, and an air inlet is provided on the installation component and is communicated with all the plurality of accommodating cavities;

[0007] A plurality of heating components, each of the accommodating cavities is separately provided with one of the heating components, the heating component forms an atomization cavity with an air inlet, the atomization cavity is communicated with the air inlet, and a cigarette cartridge tube is placed in the atomization cavity.

[0008] The present invention also proposes an electronic cigarette, which includes:

[0009] An outer cigarette sleeve, which forms a cavity inside, and a cigarette mouthpiece is provided on the outer cigarette sleeve;

[0010] The heating structure as described above, the heating structure is arranged in the cavity, and the air inlet in the heating structure is communicated with the cigarette mouthpiece; and

[0011] A control switch, the control switch is provided with an air flow channel and has a plurality of sliding positions in the length direction of the outer cigarette sleeve. By sliding the control switch between the plurality of sliding positions, one of the plurality of air inlets is conducted with the air flow channel. Brief Description of the Drawings

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0013] Figure 1 Structural sectional view of an embodiment of the heating structure provided by the present invention;

[0014] Figure 2 Structural sectional view of the assembly process of another embodiment of the heating structure provided by the present invention;

[0015] Figure 3 Schematic structural diagram of the heating component in another embodiment of the heating structure provided by the present invention;

[0016] Figure 4 Schematic diagram of the outer structure of another embodiment of the heating structure provided by the present invention;

[0017] Figure 5 Exploded view of the structure of still another embodiment of the heating structure provided by the present invention;

[0018] Figure 6 Schematic structural diagram of an embodiment of the electronic cigarette provided by the present invention;

[0019] Figure 7 Exploded view of the upper flip cover and the main sleeve body of an embodiment of the electronic cigarette provided by the present invention;

[0020] Figure 8 Schematic diagram of the internal structure of an embodiment of the electronic cigarette provided by the present invention.

[0021] Explanation of the reference numerals of the accompanying drawings:

[0022] 100, heating structure; 110, mounting component; 111, upper shell; 112, lower shell; 1121, suction port; 1122, smoke channel; 120, heating component; 121, heating element; 1211, air inlet; 122, heating film; 123, heating wire; 124, heat insulation sleeve; 130, circuit board; 140, first seal; 150, second seal; 160, sealing cap; 170, cartridge tube; 180, concentric member.

[0023] 200, electronic cigarette; 210, outer cigarette sleeve; 211, upper flip cover; 2111, embedding cavity; 2112, ventilation hole; 212, main sleeve body; 2121, cigarette mouthpiece; 220, control switch; 221, flexible pad; 230, magnet.

[0024] The realization, functional features, and advantages of the present invention will be further described in conjunction with embodiments with reference to the accompanying drawings. Specific Embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] In terms of the usage process of traditional single heating tube heated e-cigarette products, after one puff of smoke, the cigarette stick needs to be replaced to take the next puff. This operation of replacing the cigarette stick is rather cumbersome, not only increasing the usage cost, but also causing the unused tobacco to get damp and deteriorate due to contact with external air, affecting the overall experience of the user.

[0029] The present invention proposes a heating structure.

[0030] Please refer to Figure 1 , in an embodiment of the present invention, the heating structure 100 includes:

[0031] An installation component 110, which forms a plurality of accommodation cavities arranged at intervals inside, and an air intake port 1121 communicating with all the accommodation cavities is provided on the installation component 110;

[0032] The heating components 120 are provided in plurality, and one heating component 120 is correspondingly arranged in each accommodation cavity separately. The heating component 120 forms an atomization cavity having an air inlet 1211. The atomization cavity is communicated with the suction port 1121, and a cartridge tube 170 is placed in the atomization cavity.

[0033] Through the technical solution of the present invention, a plurality of accommodation cavities are arranged inside the installation component 110, and one heating component 120 is separately arranged in each accommodation cavity. Each heating component 120 can be heated separately. That is to say, after a cartridge tube 170 is used up, there is no need to immediately replace the cigarette like the traditional structure. The user can continue to use the cartridge tube 170 in other accommodation cavities to smoke, reducing the frequency of replacing the cartridge tube 170 and improving the convenience of use.

[0034] Specifically, the working principle of the heating structure 100 is as follows: The cartridge tube 170 is placed in the atomization cavity of each heating component 120. The atomization cavity has an air inlet 1211, and the atomization cavity is communicated with the suction port 1121 on the installation component 110. When the heating component 120 receives electric energy, it starts to heat up, heating the cartridge tube 170 in the atomization cavity. The substance in the cartridge tube 170 is heated and atomized. Since the atomization cavity is communicated with the suction port 1121, when the user sucks, the external air enters the atomization cavity from the air inlet 1211 of the heating component 120, mixes with the atomized smoke, and then is inhaled by the user through the suction port 1121. When the cartridge tube 170 corresponding to one heating component 120 is used up or the user wants to change the smoking experience, other heating components 120 can be heated to continue the smoking operation, thereby shortening the replacement frequency of the cartridge tube 170 and improving the convenience of carrying.

[0035] It should be explained that the installation component 110 can be in a cuboid structure, and its internal space is divided into a plurality of accommodation cavities by arranging a plurality of partition plates. For example, the partition plates can be thin plates arranged in parallel, evenly dividing the internal space of the installation component 110 into a plurality of independent accommodation cavities. The heating component 120 can be a tubular structure similar to it, and its internal space forms an atomization cavity. The air inlet 1211 is the top opening of the tubular structure. The cartridge tube 170 can be tightly inserted into the atomization cavity to ensure the effectiveness of heating. A suction port 1121 is arranged on one side of the installation component 110. The suction port 1121 can be a circular or square opening and is communicated with each atomization cavity through an internal channel to ensure that the smoke in each atomization cavity can be sucked out.

[0036] In the embodiment of the present invention, please refer to Figure 1, the heating structure 100 further includes a circuit board 130 disposed on one side of the heating component 120. A plurality of heating components 120 are electrically connected to the circuit board 130 respectively to achieve independent heating of the plurality of heating components 120. The circuit board 130 is in an unstarted or initial setting state. When the user starts the smoking operation, according to the user's setting, the circuit board 130 supplies electrical energy to one or more corresponding heating components 120. When the cartridge tube 170 corresponding to one heating component 120 is used up or the user wants to change the smoking experience, it can be switched to heating other heating components 120 through the circuit board 130 to continue the smoking operation, thereby reducing the replacement frequency of the cartridge tube 170. The circuit board 130 can be a printed circuit board (PCB) integrated with various electronic components such as resistors, capacitors, chips, etc. Each heating component 120 is connected to a specific circuit connection point on the circuit board 130 through a wire to achieve independent electrical control. For example, by setting different circuit branches on the circuit board 130, each branch is connected to one heating component 120, and a control switch 220 or a chip program is set on the circuit board 130 to achieve independent control of each heating component 120.

[0037] In an embodiment of the present invention, please refer to Figure 3 , the heating component 120 includes a heating body 121 and a heating film 122. The heating film 122 is coated on the outer periphery of the heating body 121. An atomization chamber with an air inlet 1211 is formed inside the heating body 121, and the heating body 121 is electrically connected to the circuit board 130. The heating body 121 can be a hollow cylindrical structure made of materials such as stainless steel, ceramic, or polyether ether ketone (PEEK). The hollow part inside it is the atomization chamber. And, one end of the heating body 121 is provided with an electrical connection point, which is connected to the corresponding circuit on the circuit board 130 through a wire to receive electrical energy for heating. The heating film 122 can be formed by stacking multiple layers of heat-conducting materials such as copper sheets or graphene, for example, 2 - 3 layers, and the heating film 122 is tightly wrapped around the outer periphery of the heating body 121, just like putting a "thermal coat" on the heating body 121, which can effectively disperse the heat of the heating body 121.

[0038] In an embodiment of the present invention, please refer to Figure 3The heating component 120 also includes a heating wire 123. The mounting component 110 is provided with a wire outlet hole. The heating wire 123 passes through the wire outlet hole and is electrically connected to the circuit board 130. The periphery of the wire outlet hole is filled with sealant. The heating wire 123 can be a conductor formed by twisting multiple strands of copper wire or nickel wire. The multi-strand twisted structure can increase the flexibility of the heating wire 123, facilitate wiring in the mounting component 110, and pass through the wire outlet hole to be electrically connected to the positive and negative electrodes on the circuit board 130 respectively. Optionally, a layer of insulating material, such as polyvinyl chloride, etc., can be wrapped around the outer layer of the heating wire 123 to prevent leakage. There is no specific limitation on the shape of the wire outlet hole, for example, it can be circular or square, etc., and the wire outlet hole is provided on the mounting component 110 near the heating component 120 so that the heating wire 123 can pass through a shorter distance to connect to the circuit board 130. The periphery of the outlet hole on the mounting assembly 110 may be filled with sealant, which may be silicone or UV glue, etc., to ensure that there is no gap between the outlet hole and the heating wire 123, thereby achieving good sealing and insulation effects.

[0039] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 , the heating component 120 also includes an insulating sleeve 124, which is arranged in the accommodating cavity and is sleeved on the periphery of the heating element 121. The insulating sleeve 124 can be a cylindrical structure, made of insulating materials such as ceramic fiber and aerogel, so that there is a certain space between the insulating sleeve 124 and the wall of the accommodating cavity, and this space can be used for air circulation to further enhance the thermal insulation effect. The length of the insulating sleeve 124 can be adjusted according to the length of the heating element 121, which is slightly shorter than the length of the heating element 121. The inner diameter of the insulating sleeve 124 is slightly larger than the outer diameter of the heating element 121 so that it can be sleeved on the periphery of the heating element 121. In addition, when the insulating sleeve 124 is sleeved on the periphery of the heating element 121, it fits tightly on the heating element 121, ensuring that the heat is confined to the inside of the insulating sleeve 124 as much as possible, and preventing the heat from diffusing to the cavity wall of the accommodating cavity.

[0040] In the embodiments of the present invention, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5The mounting assembly 110 includes an upper shell 111 and a lower shell 112. The lower shell 112 is detachably arranged on one side of the upper shell 111. The accommodating cavity is arranged inside the upper shell 111 and the lower shell 112, and an air inlet 1121 is arranged at one end of the lower shell 112. The detachable connection between the upper shell 111 and the lower shell 112 can be a snap connection or a threaded connection. For example, a snap buckle can be arranged on the outer side of the upper shell 111, and a slot can be arranged at a corresponding position on the lower shell 112. The snap connection and fixation of the upper shell 111 and the lower shell 112 can be achieved by the cooperation of the snap buckle and the slot. Further, after the snap connection and fixation, fasteners such as bolts can be used for threaded connection to improve the connection strength. The upper shell 111 can adopt a semi-enclosed box-shaped structure, such as an opening at the top and bottom and closed on all sides. The lower shell 112 is a semi-enclosed structure matching the upper shell 111, with one end closed and the other end open and provided with an air inlet 1121. The upper shell 111 and the lower shell 112 can be made of materials such as polyetheretherketone, metal or high temperature resistant rubber.

[0041] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 The heating structure 100 further includes a first sealing member 140, which is sleeved on the periphery of the heating component 120 to seal the gap between the upper shell 111 and the heating component 120. The first sealing member 140 may be a silicone ring, and during installation, the sealing ring is first sleeved on the periphery of the heating component 120. When the heating component 120 is installed in the accommodating cavity of the upper shell 111, the sealing ring will be squeezed between the upper shell 111 and the heating component 120. Due to the elasticity of the sealing ring, it can adaptively fill the gap between the two, effectively preventing impurities, dust, etc. from entering between the cavity wall of the accommodating cavity and the outer wall of the heating component 120.

[0042] For explanation, see Figure 2 and Figure 5 During assembly, the concentric piece 180 can be used to assist in the assembly of the upper shell 111, the mounting assembly 110, the heating assembly 120 and the lower shell 112. For example, during installation, the heating assembly is first put on the concentric piece 180, and then the first sealing piece 140, the insulation sleeve 124, the upper shell 111, the second sealing piece 150 and the lower shell 112 are put on in sequence. This can improve the assembly efficiency, and the concentric piece 180 can be removed after the assembly is completed.

[0043] In the embodiments of the present invention, please refer to Figure 1 and Figure 2, the heating structure 100 further includes a second seal 150, which is fixedly arranged at the connection of the upper shell 111 and the lower shell 112. The second seal 150 can be a silicone pad or a combination of a silicone pad and a polyethylene terephthalate (PET) film. At the connection of the upper shell 111 and the lower shell 112, the connecting edge of the upper shell 111 may have a shallow groove, and the connecting edge of the lower shell 112 also has a corresponding shallow groove. The gasket is placed between these two shallow grooves. When the upper shell 111 and the lower shell 112 are connected by means of snaps or screws, etc., the gasket is clamped in the middle to achieve the sealing of the gap between the upper shell 111 and the lower shell 112, which can not only achieve the heat insulation effect, but also prevent the e-liquid from leaking out.

[0044] In an embodiment of the present invention, please refer to Figure 4 , the heating structure 100 further includes a sealing cap 160. A sealing cap 160 is respectively arranged above each accommodating cavity. The sealing cap 160 is detachably connected to the mounting assembly 110 to open or close the air inlet 1211. The sealing cap 160 can be a small round or square lid, covering the upper part of the accommodating cavity. When it is necessary to suck the cartridge tube 170 in a certain accommodating cavity, the sealing cap 160 above the accommodating cavity can be opened, so as to realize the air intake into the atomization cavity of the heating assembly 120. When the sealing cap 160 closes the air inlet 1211, it can effectively prevent foreign matters such as dust, liquid, and hair in the outside world from entering the accommodating cavity, thus causing the cartridge tube 170 to be contaminated or damp, etc.

[0045] When sucking the cartridge tube 170 in the first heating assembly 120, the first sealing cap 160 is opened, and the first heating assembly 120 is electrified to generate high temperature. After heating the cartridge tube 170 to generate smoke, then smoking through the filter tip, the smoking action can be completed; similarly, when sucking the cartridge tubes 170 in the second and third heating assemblies 120, the corresponding sealing caps 160 need to be opened, and the other two sealing caps 160 are covered to ensure the state of only one air inlet 1211 for air intake.

[0046] In an embodiment of the present invention, please refer to Figure 1 and Figure 2, a smoke channel 1122 is provided inside the installation component 110. The smoke channel 1122 extends along the side-by-side direction of a plurality of heating components 120, and communicates with the atomization chamber and the suction port 1121. The atomization chamber extends along the axial direction of the heating component 120. The smoke channel 1122 extends in the side-by-side direction of the plurality of heating components 120. That is to say, the smoke channel 1122 can be arranged below the heating component 120 and is provided with a plurality of interfaces. Through the conduction of the interfaces with the atomization chamber, the transportation of smoke from the atomization chamber to the smoke channel 1122 is realized. Optionally, the interface can be a gradient type. For example, at one end of the atomization chamber close to the smoke channel 1122, it gradually transitions from the circular cross-section of the atomization chamber to a rectangular cross-section matching the smoke channel 1122 to ensure that the smoke can smoothly flow from the atomization chamber into the smoke channel 1122. The suction port 1121 can be a relatively large opening provided at one end of the installation component 110. The smoke channel 1122 directly leads to the suction port 1121, and a filter screen can also be provided at the connection to prevent impurities from being inhaled by the user. This cooperation between the smoke channel 1122 and the atomization chamber makes the air inlet and outlet path of the smoke in an "L" shape design, which can ensure that the smoke generated in each atomization chamber can smoothly converge to the suction port 1121. Whether one or more heating components 120 are started, the smoke can be orderly transported according to the smoke channel 1122. Moreover, the overall structure is more reasonable in layout, which is beneficial to improving the utilization rate of the internal space of the installation component 110.

[0047] The present invention also provides an electronic cigarette 200 to adapt to the heating structure 100 in the above embodiments. Please refer to Figure 6 , the electronic cigarette 200 includes:

[0048] An outer cigarette sleeve 210, which forms a cavity inside, and a cigarette mouth 2121 is provided on the outer cigarette sleeve 210;

[0049] The heating structure 100 in any of the above embodiments, the heating structure 100 is arranged inside the cavity, and the suction port 1121 in the heating structure 100 communicates with the cigarette mouth 2121; and

[0050] A control switch 220, the control switch 220 is provided with an air flow channel and has a plurality of sliding positions in the length direction of the outer cigarette sleeve 210. By sliding the control switch 220 between the plurality of sliding positions, one of the plurality of air inlet ports 1211 is made to communicate with the air flow channel.

[0051] When the control switch 220 slides between the plurality of sliding positions, one of the plurality of air inlet ports 1211 can be made to communicate with the air flow channel.

[0052] The technical solution of the present invention is to set a slidable control switch 220, and the control switch 220 sets a plurality of sliding positions in the length direction of the outer cigarette sleeve 210, and the number of sliding positions corresponds to the number of heating components. For example, when there are three heating components, the control switch 220 includes three sliding positions, namely, left, middle and right, and the three sliding positions correspond to the first heating component 120, the second heating component 120 and the third heating component 120, respectively. The user can easily slide the control switch 220 to select which air inlet 1211 on the three heating components 120 to inhale air, so that the air inlet 1211 is connected to the air flow channel, thereby determining which heating component 120 needs to be inhaled. The smoke bomb tube 170 in the smoke bomb tube 170 is to be inhaled. Specifically, the electronic cigarette 200 may also include a plurality of selection buttons, which are arranged on a side of the outer cigarette sleeve 210 away from the control switch 220, and the plurality of selection buttons are respectively arranged in one-to-one correspondence with the heating wires 123 on the plurality of heating components 120. By pressing a certain selection button to squeeze the circuit board 130, the heating wire 123 on the heating component 120 is electrically connected to the circuit board 130, and the heating component 120 will heat the internal cigarette bomb tube 170 to release smoke.

[0053] In the embodiments of the present invention, please refer to Figure 6 and Figure 7 The outer cigarette cover 210 includes an upper flip cover 211 and a main cover body 212. The upper flip cover 211 can be installed on the main cover body 212 in an openable and closable manner. A cavity is formed inside the main cover body 212, and a cigarette holder 2121 is provided on one side of the main cover body 212. The control switch 220 is installed on the side of the upper flip cover 211 away from the main cover body 212. The upper flip cover 211 can be a rectangular parallelepiped structure. The upper flip cover 211 and the main cover body 212 can be connected by a hinge. The hinge is installed at one end of the upper flip cover 211, so that the upper flip cover 211 can be opened and closed around the hinge axis. The main cover body 212 is a rectangular parallelepiped structure, and the shape of the internal cavity is similar to that of the main cover body 212. In addition, a cigarette holder 2121 is provided on the side of the main cover body 212 near one end, and the cigarette holder 2121 can be conical. The upper flip cover 211 can be closed when the electronic cigarette 200 is not in use, providing additional protection for the internal heating structure 100 and other components. When it is necessary to clean the internal heating structure 100, check the circuit, or replace the cigarette cartridge tube 170, the internal cavity can be easily accessed by simply opening the upper flip cover 211 without complicated disassembly process.

[0054] It should be noted that the control switch 220 can be fixed on the side of the upper flip cover 211 facing away from the main sleeve body 212 through a card slot or screws. When adopting the card slot structure, a card slot matching the shape of the control switch 220 is provided at the corresponding position of the upper flip cover 211. After the control switch 220 is snapped into the card slot, it can be firmly fixed. In addition, the control switch 220 can be a strip-shaped slider structure and is located on the side of the outer cigarette sleeve 210. An air flow channel is provided inside the control switch 220, and a conduction structure matching the air inlet 1211 is provided at the bottom of the control switch 220. When the control switch 220 slides to different sliding positions, the conduction structure can accurately connect with the corresponding air inlet 1211 to realize the conduction between the air inlet 1211 and the air flow channel. A guide rail or groove matching the control switch 220 is provided on the outer cigarette sleeve 210 to ensure that the control switch 220 can slide smoothly between multiple sliding positions.

[0055] In an embodiment of the present invention, please refer to Figure 7 , the upper flip cover 211 and the main sleeve body 212 are connected by a magnet 230. A small magnet 230 can be embedded inside the edge of the upper flip cover 211. At the edge position of the main sleeve body 212 corresponding to the upper flip cover 211, a thin sheet made of ferromagnetic material (such as iron) can be embedded, or a magnet 230 (with a magnetic pole different from that of the magnet 230 on the upper flip cover 211) can also be embedded. In this way, the opening and closing operation of the upper flip cover 211 becomes very convenient. The user only needs to apply a little external force to easily open or close the upper flip cover 211, and the operation is convenient.

[0056] In an embodiment of the present invention, please refer to Figure 7 and Figure 8 , a plurality of embedding cavities 2111 with air holes 2112 are provided on the side of the upper flip cover 211 facing the main sleeve body 212. The embedding cavities 2111 are arranged in one-to-one correspondence with the accommodating cavities in the heating structure 100. The control switch 220 reciprocally slides between a plurality of air holes 2112, and the head of the cartridge tube 170 is located inside the embedding cavity 2111. The embedding cavity 2111 can be a circular or square concave cavity structure. The air holes 2112 are evenly distributed on the wall surface of the embedding cavity 2111. The head of the cartridge tube 170 is located inside the embedding cavity 2111, and the diameter of the head of the cartridge tube 170 is slightly smaller than the diameter of the embedding cavity 2111 so as to be stably placed inside the embedding cavity 2111 and ensure that air can smoothly flow around the head of the cartridge tube 170. In addition, the head of the cartridge tube 170 extends into the embedding cavity 2111. When the upper flip cover 211 is opened, the exposed head of the cartridge tube 170 can be easily picked up and taken out from the atomization cavity, which is convenient for replacing the cartridge tube 170.

[0057] In an embodiment of the present invention, please refer to Figure 8, on the side of the control switch 220 facing the embedding cavity 2111, there is a flexible pad 221. And when the control switch 220 slides to any air vent 2112, the flexible pad 221 blocks the remaining air vents 2112 to seal the remaining embedding cavities 2111. When the control switch 220 slides to any air vent 2112, the flexible pad 221 can block the remaining air vents 2112 to seal the remaining embedding cavities 2111, effectively preventing the air leakage phenomenon between different embedding cavities 2111 and ensuring the independent operation of each accommodating cavity. The flexible pad 221 can be a silica gel pad or other elastic materials with excellent flexibility and sealing performance, etc. Optionally, grooves or card slots can be provided on the control switch 220 to fix the flexible pad 221, or the flexible pad 221 can be fixed on the control switch 220 by pasting, ensuring that during the reciprocating sliding of the control switch 220, the flexible pad 221 will not fall off and can always accurately seal the remaining air vents 2112, avoiding air entering from the unnecessary air vents 2112 and ensuring the accuracy and stability of the intake air volume.

[0058] In the embodiment of the present invention, the gap between two adjacent embedding cavities 2111 is filled with a sealant. The sealant can be silicone sealant, etc. Filling the sealant in the gap between two adjacent embedding cavities 2111 further strengthens the sealing performance between each embedding cavity 2111, helps prevent air leakage or air leakage between adjacent embedding cavities 2111, and ensures the independent and stable intake state of each embedding cavity 2111. Optionally, the connection between the air inlet 1121 and the mouthpiece 2121 is filled with a sealant, avoiding air leakage from the connection during the inhalation process, ensuring that the airflow can efficiently pass from the air inlet 1121 through the mouthpiece 2121 to the user's mouth, and improving the use efficiency of the electronic cigarette 200.

[0059] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A heating structure for an electronic cigarette, characterized in that: The heating structure comprises: An installation component is formed with a plurality of spaced accommodating cavities inside, and the installation component is provided with an air inlet connected to the plurality of accommodating cavities; There are multiple heating components, and each of the accommodating chambers is provided with a corresponding heating component. The heating components form an atomizing chamber with an air inlet, and the atomizing chamber is connected to the air inlet. The atomizing chamber is used to place the cigarette bomb tube.

2. The heating structure according to claim 1, characterized in that: The heating structure further comprises a circuit board, which is arranged at one side of the heating component. The plurality of heating components are electrically connected to the circuit board respectively to achieve individual heating of the plurality of heating components.

3. The heating structure according to claim 2, characterized in that: The heating component includes a heating element and a heating film, wherein the heating film is coated on the outer periphery of the heating element, the atomization chamber having the air inlet is formed inside the heating element, and the heating element is electrically connected to the circuit board.

4. The heating structure according to claim 3, characterized in that: The heating component also includes a heating wire. The mounting component is provided with a wire outlet hole. The heating wire passes through the wire outlet hole and is electrically connected to the circuit board. The periphery of the wire outlet hole is filled with sealant.

5. The heating structure according to claim 3, characterized in that: The heating component further comprises a heat-insulating sleeve, which is arranged in the accommodating cavity and sleeved on the outer periphery of the heating element.

6. The heating structure according to claim 1, characterized in that: The mounting assembly comprises an upper shell and a lower shell, the lower shell is detachably arranged on one side of the upper shell, the accommodating cavity is arranged through the interior of the upper shell and the lower shell, and the air inlet is arranged at one end of the lower shell.

7. The heating structure according to claim 6, characterized in that: The heating structure further includes a first sealing member, which is sleeved on the outer periphery of the heating component to seal the gap between the upper shell and the heating component.

8. The heating structure according to claim 6, characterized in that: The heating structure further includes a second sealing member, which is fixedly arranged at the connection between the upper shell and the lower shell.

9. The heating structure according to any one of claims 1 to 8, characterized in that: The heating structure further includes a sealing cap, one of which is correspondingly provided above each of the accommodating cavities, and the sealing cap is detachably connected to the mounting assembly to open or close the air inlet; and / or, A smoke channel is provided in the mounting assembly, the smoke channel extends along the parallel direction of the plurality of heating assemblies and connects the atomizing chamber and the air inlet, and the atomizing chamber extends along the axial direction of the heating assembly.

10. An electronic cigarette, characterized in that: The electronic cigarette comprises: An outer cigarette sleeve has a cavity formed inside and a cigarette holder is provided on the outer cigarette sleeve; The heating structure according to any one of claims 1 to 9, wherein the heating structure is arranged in the cavity, and an air inlet in the heating structure is connected to the cigarette holder; and A control switch is provided with an airflow channel and has a plurality of sliding positions in the length direction of the outer cigarette sleeve, and the control switch slides between the plurality of sliding positions so that one of the plurality of air inlets is connected to the airflow channel.

11. The electronic cigarette according to claim 10, characterized in that: The outer cigarette cover comprises an upper flip cover and a main cover body, wherein the upper flip cover is installed on the main cover body in an openable and closable manner, the cavity is formed inside the main cover body, and the cigarette holder is provided on one side of the main cover body, and the control switch is installed on the side of the upper flip cover away from the main cover body.

12. The electronic cigarette according to claim 11, characterized in that The upper flip cover is connected to the main sleeve body through a magnet.

13. The electronic cigarette according to claim 11, characterized in that: A plurality of embedded cavities with ventilation holes are provided on one side of the upper flip cover facing the main sleeve, and the embedded cavities are arranged in one-to-one correspondence with the accommodating cavities in the heating structure. The control switch slides back and forth between the plurality of ventilation holes, and the head of the cigarette bomb tube is located in the embedded cavity.

14. The electronic cigarette according to claim 13, characterized in that: A flexible pad is provided on one side of the control switch facing the embedded cavity, and when the control switch slides to any of the air holes, the flexible pad covers the remaining air holes to seal the remaining embedded cavities.

15. The electronic cigarette according to claim 13, characterized in that: The gap between two adjacent embedding cavities is filled with sealant; and / or the connection between the air inlet and the cigarette holder is filled with sealant.

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