Heater and aerosol-generating device

Abstract

The utility model discloses a kind of heater and aerosol generating device, it is related to aerosol generating technical field, wherein, the heater includes shell, cover and heating pipe;Shell has inner cavity, and one end of the inner cavity is open setting;Cover is sealed and closed in the opening of the inner cavity, the cover and the shell respectively have the air inlet channel and the air outlet channel communicated with the inner cavity;Heating pipe is set in the inner cavity, to heat to generate aerosol, and two ends of the heating pipe are respectively connected with the air inlet channel and the air outlet channel;Wherein, the lateral wall of the heating pipe and the inner side wall of the inner cavity are spaced apart.

Description

Technical Field

[0001] This utility model relates to the field of aerosol generation technology, and in particular to a heater and an aerosol generation device. Background Technology

[0002] Aerosol generating devices, as electronic products designed to replace traditional tobacco combustion products, work by using heat sources such as electric heaters to precisely control the temperature of the substrate within a range sufficient to release flavor substances and nicotine, but far below its ignition point, thereby significantly reducing the generation of harmful substances.

[0003] The core component of the aerosol generating device is the heater, which is usually located inside the casing. Currently, a small portion of the aerosol generated by the heater escapes and remains inside the casing, which can easily damage the power supply mainboard inside the casing. Utility Model Content

[0004] The main purpose of this invention is to provide a heater and an aerosol generating device, which aims to improve the situation where a small portion of the aerosol generated by the heater in current aerosol generating devices escapes and remains inside the casing.

[0005] To achieve the above objectives, the heater proposed in this utility model includes: A housing having an inner cavity, one end of which is open; A cover that seals the opening of the inner cavity, the cover and the housing respectively having an air inlet channel and an air outlet channel communicating with the inner cavity; and, A heating tube is disposed in the inner cavity to heat and generate aerosol, and the two ends of the heating tube are respectively connected to the air inlet channel and the air outlet channel, wherein the peripheral sidewall of the heating tube is spaced apart from the inner sidewall of the inner cavity.

[0006] To achieve the above objectives, this utility model proposes an aerosol generating device comprising a housing and the aforementioned heater. The housing is provided with two through holes, the heater is disposed inside the housing, and the air inlet channel and the air outlet channel are respectively connected to the two through holes. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0008] Figure 1A schematic diagram of an embodiment of the aerosol generating device provided by this utility model; Figure 2 for Figure 1 Schematic diagram of the exploded structure of the aerosol generation device; Figure 3 for Figure 2 A schematic diagram of the exploded structure of the heater from one perspective; Figure 4 for Figure 2 A schematic diagram of the exploded structure of the heater from another perspective; Figure 5 for Figure 2 A schematic diagram of the cross-sectional structure of the intermediate heater.

[0009] Explanation of icon numbers: 1000. Aerosol generating device; 100. Heater; 200. Housing; 210. Through hole; 300. Power supply main board; 310. Metal contacts; 400. Power supply; 1. Housing; 1a. Inner cavity; 1b. Air outlet channel; 2. Cover; 2a. Annular groove; 2b. Air inlet channel; 3. Heating tube; 31. Tube body; 32. Heating part; 321. Connecting terminal; 4. Electrical connection part; 41. Inner end; 42. Outer end; 5. Adapter circuit board; 51. Electrical contact spring; 52. Electrical connection socket; 6. Sealing ring.

[0010] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0012] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0013] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0014] Traditional cigarettes produce smoke by burning tobacco, but this combustion process also produces a large amount of harmful substances such as tar and carbon monoxide, which endanger the health of smokers. As people’s awareness of healthy living increases, the popularity of aerosol generating devices among smokers is rapidly rising.

[0015] Aerosol generating devices, as electronic products designed to replace traditional tobacco combustion products, work by using heat sources such as electric heaters to precisely control the temperature of the substrate within a range sufficient to release flavor substances and nicotine, but far below its ignition point, thereby significantly reducing the generation of harmful substances.

[0016] The core component of the aerosol generating device is the heater, which is usually located inside the casing. Currently, a small portion of the aerosol generated by the heater escapes and remains inside the casing, which can easily damage the power supply mainboard inside the casing.

[0017] The reason for this is that the heater's structural channels include heating tubes, an inlet pipe, and an outlet pipe. The heating tubes are connected in series between the inlet pipe and the outlet pipe. The aerosol generated by the heating tubes mainly escapes from the connection points between the heating tubes and the inlet pipe and the outlet pipe, and reaches the outer shell.

[0018] In view of this, the present invention provides a heater and an aerosol generating device, which can at least improve the situation in the current aerosol generating device where a small portion of the aerosol generated by the heater escapes and remains inside the shell.

[0019] To facilitate understanding of the heater and aerosol generating device provided by this utility model, the following description is provided in conjunction with the accompanying drawings, wherein... Figure 1 A schematic diagram of an embodiment of the aerosol generating device provided by this utility model; Figure 2 for Figure 1Schematic diagram of the exploded structure of the aerosol generation device; Figure 3 for Figure 2 A schematic diagram of the exploded structure of the heater from one perspective; Figure 4 for Figure 2 A schematic diagram of the exploded structure of the heater from another perspective; Figure 5 for Figure 2 A schematic diagram of the cross-sectional structure of the intermediate heater.

[0020] On the one hand, please refer to Figure 5 In one embodiment of the present invention, the heater 100 includes a housing 1, a cover 2, and a heating tube 3; the housing 1 has an inner cavity 1a, one end of which is open; the cover 2 seals and covers the opening of the inner cavity 1a, and the cover 2 and the housing 1 respectively have an air inlet channel 2b and an air outlet channel 1b communicating with the inner cavity 1a; the heating tube 3 is disposed in the inner cavity 1a for heating to generate aerosol, and both ends of the heating tube 3 are respectively connected to the air inlet channel 2b and the air outlet channel 1b; wherein, the peripheral sidewall of the heating tube 3 is spaced apart from the inner sidewall of the inner cavity 1a.

[0021] "The cover 2 and the shell 1 each have an air inlet channel 2b and an air outlet channel 1b communicating with the inner cavity 1a" includes two configurations: the cover 2 has an air inlet channel 2b and the shell 1 has an air outlet channel 1b; the cover 2 has an air outlet channel 1b and the shell 1 has an air inlet channel 2b. Specifically... Figure 5 In the embodiment shown, the cover 2 has an air inlet channel 2b and the shell 1 has an air outlet channel 1b.

[0022] "The cover 2 seals and closes to the opening of the inner cavity 1a" means that the cover 2 is sealed and connected to the shell 1. There are various ways to seal and connect the cover 2 and the shell 1. For example, sealant can be used to seal and fix the cover 2 and the shell 1. This embodiment does not limit this.

[0023] In the above technical solution, the heating tube 3 is disposed in the inner cavity 1a of the housing 1. After the cover 2 is closed on the housing 1, the two ends of the heating tube 3 can be connected to the air inlet channel 2b and the air outlet channel 1b respectively, thereby forming an aerosol passage. Since the cover 2 and the housing 1 adopt a sealed closing method, it can ensure that the inner cavity 1a of the housing 1 is sealed and isolated from the outside. Even if the aerosol generated by the heating tube 3 escapes from the position where the heating tube 3 is connected to the air inlet channel 2b and the air outlet channel 1b into the inner cavity 1a of the housing 1, it is difficult to continue to escape outward. When the heater 100 is applied to the aerosol generating device 1000 with the outer shell 200, the situation of aerosol escaping and remaining in the outer shell 200 is significantly improved. Moreover, since the peripheral wall of the heating tube 3 is spaced apart from the inner wall of the inner cavity 1a of the housing 1, it can play a heat insulation role. On the one hand, it can ensure the heating efficiency of the heating tube 3, and on the other hand, it can reduce the impact of the high temperature of the heater 100 on other components adjacent to the heater 100.

[0024] Please see Figure 3 and Figure 4 In some embodiments, the heating tube 3 includes a tube body 31 and a heating part 32, with the two ends of the tube body 31 connected to an air inlet channel 2b and an air outlet channel 1b, respectively; wherein the heating part 32 is arranged around the tube body 31.

[0025] The heating element 32 can be heated by resistance heating, infrared heating, or electromagnetic induction heating. In this embodiment of the invention, resistance heating is mainly used.

[0026] In the above technical solution, the tube body 31 of the heating tube 3 serves as the main component for containing the substrate, and the heating part 32 is arranged around it to uniformly heat the substrate inside, so that the substrate can stably generate aerosol.

[0027] Please see Figure 3 , Figure 4 and Figure 5 In some embodiments, the cover 2 is provided with an electrical contact part 4, which extends through the inner and outer sides of the cover 2; the heating part 32 is electrically connected to the inner end 41 of the electrical contact part 4, and the outer end 42 of the electrical contact part 4 is configured to be electrically connected to the power supply main board 300.

[0028] There are various ways in which the "electric contact part 4 penetrates the inner and outer sides of the cover 2". For example, the cover 2 is provided with a mounting hole, and the electrical contact part 4 is inserted into the mounting hole by an interference fit. This embodiment does not limit this. The "outer end 42 of the electrical contact part 4 is configured to be electrically connected to the power supply main board 300", which can be a direct connection or an indirect connection. This embodiment does not limit this.

[0029] In the above technical solution, by providing an electrical connection part 4 through the cover 2, the heating part 32 provided in the inner cavity 1a of the housing 1 can be electrically connected to the power supply main board 300 through the electrical connection part 4, thus ensuring a continuous supply of electrical energy to the heating part 32.

[0030] In some embodiments, the heating part 32 has a connection terminal 321, which is laser-welded to the inner end 41 of the electrical connection part 4.

[0031] "Connection terminal 321" refers to the component on the heating part 32 used for electrical connection with external circuits. In the heater 100, the connection terminal 321 of the heating part 32 is usually a thin metal sheet.

[0032] In the above technical solution, the connecting terminal 321 of the heating part 32 is connected to the electrical contact part 4 by laser welding, which can meet the high welding precision requirements between the two and avoid the connecting terminal 321 being welded through.

[0033] In some embodiments, the cover 2 is injection molded to the electrical contact part 4.

[0034] In the above technical solution, the cover 2 is injection molded to the power receiving part 4, which not only solves the problem of the difficulty in installing the power receiving part 4 on the cover 2, but also avoids the setting of the power receiving part 4 from weakening the sealing of the inner cavity 1a of the housing 1. At the same time, the integrated injection molding of the cover 2 and the power receiving part 4 can also reduce the assembly steps of the heater 100 and reduce its assembly difficulty.

[0035] Please see Figure 4 In some embodiments, the heater 100 further includes an adapter circuit board 5, which is fixedly disposed on the cover 2 and electrically connected to the outer end 42 of the power receiving part 4; wherein the adapter circuit board 5 is provided with a power receiving spring 51, which is configured to elastically abut against the metal contact 310 of the power supply main board 300.

[0036] There are several ways to fix the "adapter circuit board 5 to the cover 2", such as Figure 3 and Figure 4 As shown, the adapter circuit board 5 is fixed to the cover 2 by screws. The "connector spring 51" typically has an elastic deformation toward the metal contact 310.

[0037] In the above technical solution, a contact spring 51 is provided on the adapter circuit board 5 of the heater 100. The contact spring 51 can elastically abut against the power supply main board 300. The heater 100, as an independent component, can be quickly installed into the housing 200 and electrically connected to the power supply main board 300. Since the contact spring 51 has a certain elastic deformation, it can compensate for the assembly error of the heater 100 in the housing 200, ensuring a stable electrical connection between the heater 100 and the power supply main board 300.

[0038] In some embodiments, the adapter circuit board 5 has a power connection socket 52, and the outer end 42 of the power connection part 4 is inserted into the power connection socket 52.

[0039] The wall of the "power socket 52" is generally made of conductive metal, but this embodiment does not limit this. Specifically, the power socket 52 and the power receiving part 4 are usually configured as a one-to-one power receiving group, and there are usually multiple power receiving groups, as shown in the example below. Figure 4 As shown, there are four power sockets 52, and four corresponding power connection groups.

[0040] In the above technical solution, by forming a power connection socket 52 on the adapter circuit board 5, the outer end 42 of the power connection part 4 can be inserted into the power connection socket 52 to realize the conductive connection between the power connection part 4 and the power connection socket 52. Furthermore, the connection between the power connection part 4 and the power connection socket 52 usually has a large connection strength, which can provide a good positioning foundation for the adapter circuit on the cover 2.

[0041] Please see Figure 2 In some embodiments, the cover 2 is provided with an annular groove 2a on the side facing the housing 1, and a sealing ring 6 is provided in the annular groove 2a; the edge portion of the housing 1 corresponding to the opening of the inner cavity 1a extends into the annular groove 2a and abuts against the sealing ring 6.

[0042] "The edge portion of the opening of the shell 1 corresponding to the inner cavity 1a" can be understood as the shell 1 having an annular protrusion formed on the end face of the opening of the inner cavity 1a, which extends into the annular groove 2a and abuts against the sealing ring 6.

[0043] In the above technical solution, the sealing connection between the housing 1 and the cover 2 is detachable by setting the annular groove 2a and the sealing ring 6. After long-term use of the heater 100, the housing 1 and the cover 2 can be separated, and the inner cavity 1a of the housing 1 can be cleaned and maintained.

[0044] On the other hand, please see Figure 1 and Figure 2 In one embodiment of this utility model, the aerosol generating device 1000 includes a housing 200 and a heater 100. The housing 200 is provided with two through holes 210, and the heater 100 is disposed inside the housing 200. The air inlet channel 2b and the air outlet channel 1b are respectively connected to the two through holes 210. The specific structure of the heater 100 is as described in the above embodiments. Since the aerosol generating device 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0045] Please see Figure 3 and Figure 4In some embodiments, a power supply main board 300 is also provided inside the outer casing 200, and the power supply main board 300 has metal contacts 310; the heating tube 3 of the heater 100 includes a heating part 32, and a converter circuit board 5 is fixedly provided on the outside of the cover 2. The converter circuit board 5 is electrically connected to the heating part 32 and has a contact spring 51, which abuts against the metal contacts 310.

[0046] In the above technical solution, a contact spring 51 is provided on the adapter circuit board 5 of the heater 100. The contact spring 51 can elastically abut against the power supply main board 300. The heater 100, as an independent component, can be quickly installed into the housing 200 and electrically connected to the power supply main board 300. Since the contact spring 51 has a certain elastic deformation, it can compensate for the assembly error of the heater 100 in the housing 200, ensuring a stable electrical connection between the heater 100 and the power supply main board 300.

[0047] In a specific embodiment of this utility model, the aerosol generating device 1000 includes a housing 200, a power supply main board 300, a power supply 400, and a heater 100. The housing 200 is provided with two through holes 210. The power supply main board 300, the power supply 400, and the heater 100 are disposed inside the housing 200. The power supply 400 is configured to supply power to the power supply main board 300, and the power supply main board 300 has metal contacts 310. The heater 100 includes a housing 1, a cover 2, a transition circuit board 5, and a heating tube 3. The housing 1 has an inner cavity 1a, one end of which is open. The housing 1 has an exhaust channel 1b communicating with the inner cavity 1a. The cover 2 seals and covers the opening of the inner cavity 1a. The cover 2 has an intake channel 2b communicating with the inner cavity 1a. The intake channel 2b and the exhaust channel 1b are respectively connected to the two through holes 210. The cover 2 is provided with a power receiving part 4, which penetrates the inner and outer sides of the cover 2 and is injection molded to the cover 2. A ring groove 2a is provided on the side of body 2 facing shell 1. A sealing ring 6 is provided in the ring groove 2a. The edge portion of shell 1 corresponding to the opening of inner cavity 1a extends into the ring groove 2a and abuts against the sealing ring 6. A heating tube 3 is provided in inner cavity 1a to heat and generate aerosol. The peripheral wall of heating tube 3 is spaced apart from the inner wall of inner cavity 1a. Heating tube 3 includes tube body 31 and heating part 32. The two ends of tube body 31 are respectively connected to air inlet channel 2b and air outlet. The gas channel 1b and the heating part 32 are arranged around the tube body 31. The heating part 32 has a connecting terminal 321, which is laser-welded to the inner end 41 of the power receiving part 4. The adapter circuit board 5 is fixedly arranged on the cover 2. The adapter circuit board 5 has a power receiving socket 52. The outer end 42 of the power receiving part 4 is inserted into the power receiving socket 52. The adapter circuit board 5 is provided with a power receiving spring 51, which is configured to elastically abut against the metal contact 310 of the power supply main board 300.

[0048] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A heater, characterized in that, include: A housing having an inner cavity, one end of which is open; The cover seals the opening of the inner cavity, and the cover and the housing respectively have an air inlet channel and an air outlet channel communicating with the inner cavity; as well as, A heating tube is disposed in the inner cavity to heat and generate aerosol, and the two ends of the heating tube are respectively connected to the air inlet channel and the air outlet channel, wherein the peripheral sidewall of the heating tube is spaced apart from the inner sidewall of the inner cavity.

2. The heater as claimed in claim 1, characterized in that, The heating tube includes a tube body and a heating section, with the two ends of the tube body respectively connected to the air inlet channel and the air outlet channel; The heating element is arranged around the tube body.

3. The heater as described in claim 2, characterized in that, The cover is provided with an electrical contact part, which extends through the inner and outer sides of the cover. The heating element is electrically connected to the inner end of the power receiving element, and the outer end of the power receiving element is configured to be electrically connected to the power supply main board.

4. The heater as described in claim 3, characterized in that, The heating part has a connection terminal, which is laser-welded to the inner end of the electrical contact part.

5. The heater as claimed in claim 3, characterized in that, The cover is injection molded and connected to the electrical contact part.

6. The heater as claimed in claim 3, characterized in that, The heater also includes an adapter circuit board, which is fixedly disposed on the cover and electrically connected to the outer end of the power receiving part; The adapter circuit board is equipped with a power contact spring, which is configured to elastically abut against the metal contacts of the power supply motherboard.

7. The heater as claimed in claim 6, characterized in that, The adapter circuit board has a power connection socket, and the outer end of the power connection part is inserted into the power connection socket.

8. The heater as claimed in claim 1, characterized in that, The cover has an annular groove on the side facing the housing, and a sealing ring is provided in the annular groove; The edge portion of the housing corresponding to the opening of the inner cavity extends into the annular groove and abuts against the sealing ring.

9. An aerosol generating device, characterized in that, The device includes a housing and a heater as described in any one of claims 1 to 8, wherein the housing is provided with two through holes, the heater is disposed inside the housing, and the air inlet channel and the air outlet channel are respectively connected to the two through holes.

10. The aerosol generating apparatus as described in claim 9, characterized in that, The housing also contains a power supply motherboard, which has metal contacts. The heater's heating tube includes a heating part, and an adapter circuit board is fixedly disposed on the outside of the cover. The adapter circuit board is electrically connected to the heating part and has a contact spring, which abuts against the metal contact.

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