Heating device for an electronic cigarette and electronic cigarette

Abstract

The application is suitable for the field of electronic cigarettes, and provides a heating device of an electronic cigarette and the electronic cigarette, wherein the heating device of the electronic cigarette is suitable for non-liquid tobacco material, and the heating device of the electronic cigarette comprises a heat-conducting member and a heating member, wherein the heat-conducting member separates the non-liquid tobacco material from the heating member and transmits the heat of the heating member to the non-liquid tobacco material, so that the non-liquid tobacco material is combusted and gasified to generate smoke. The heating device of the electronic cigarette provided by the application can effectively reduce the temperature of the non-liquid tobacco material subjected to heat, reduce the generation of harmful substances, and purify the smoke.

Description

Technical Field

[0001] This invention belongs to the field of electronic cigarettes, and particularly relates to a heating device for an electronic cigarette and an electronic cigarette. Background Technology

[0002] Non-liquid e-cigarettes include tobacco paste and similar substances. The composition of non-liquid e-cigarettes is relatively complex. Current electronic cigarettes use heating elements to directly heat the non-liquid e-cigarettes. Since the surface temperature of commercially available heating elements is 270-300 degrees Celsius, the direct contact between the non-liquid e-cigarettes and the heating element surface results in a higher concentration of harmful substances. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a heating device and an electronic cigarette that aim to reduce the harmful substances produced by non-liquid tobacco while using existing heating elements.

[0004] This invention is implemented as follows:

[0005] A heating device for an electronic cigarette, suitable for non-liquid tobacco, the heating device for the electronic cigarette includes a heat-conducting element and a heating element, wherein the heat-conducting element isolates the non-liquid tobacco and the heating element, and transfers the heat of the heating element to the non-liquid tobacco, so that the non-liquid tobacco burns and vaporizes to produce smoke.

[0006] Furthermore, the heat-conducting element has multiple filter holes, which transfer the heat from the heating element to the non-liquid smoke material and filter the flue gas generated by the combustion and gasification of the non-liquid smoke material.

[0007] Furthermore, the heating device of the electronic cigarette has an airflow passage communicating with the outside and a receiving cavity for accommodating the non-liquid tobacco. The heat-conducting element is at least partially located in the receiving cavity to form a heating surface in contact with the non-liquid tobacco, and at least another part of the heat-conducting element is exposed in the airflow passage so that the plurality of filter holes connect the receiving cavity and the airflow passage. The smoke generated by the heating surface flows through the plurality of filter holes to the airflow passage and then reaches the outside.

[0008] Furthermore, the accommodating cavity and the airflow passage share a cavity within the heating device of the electronic cigarette, and the accommodating cavity and the airflow passage are separated by the heat-conducting component.

[0009] Furthermore, the accommodating cavity and the airflow passage are two independent cavities within the heating device of the electronic cigarette, and the heating device of the electronic cigarette has an air passage in the cavity wall between the accommodating cavity and the airflow passage to connect the airflow passage and the accommodating cavity; at least part of the heat-conducting element blocks the air passage so that the airflow passage and the accommodating cavity are connected only through the multiple filter holes provided by the heat-conducting element.

[0010] Furthermore, the accommodating cavity and the airflow passage are nested, such that one of the accommodating cavity and the airflow passage surrounds the other, and the same end of the accommodating cavity and the airflow passage are both open to achieve air passage connection. At least part of the heat-conducting element blocks the opening of the accommodating cavity, and the plurality of filter holes provided by the heat-conducting element connect the openings of the accommodating cavity and the airflow passage.

[0011] Furthermore, the heating device of the electronic cigarette includes an annular substrate, a first tube, a second tube, and a base;

[0012] The outer ring edge of the annular substrate is provided with the first tube body, and the inner ring edge is provided with the second tube body. The second tube body is housed in the first tube body, so that the first tube body, the second tube body and the annular substrate together form the accommodating cavity, and the hollow internal space of the second tube body forms the airflow passage.

[0013] At least a portion of the heat-conducting components block the opening at one end of the first tube away from the annular substrate, and at least another portion of the heat-conducting components have filter holes that are connected to the air passage inside the second tube.

[0014] The base covers the heat-conducting component over the first tube.

[0015] Furthermore, the heat-conducting component is arranged in a ring shape, with one side of the ring blocking the opening of the first tube and the other side abutting against the base. The space enclosed by the inner ring surface of the heat-conducting component is connected to the opening of the second tube. One of the base and the inner wall of the first tube is sleeved on the outer ring surface of the heat-conducting component.

[0016] Furthermore, the length of the first tube protrusion is greater than the length of the second tube protrusion, so that an installation space for the heat-conducting component is formed between the end face of the first tube protrusion and the end face of the second tube protrusion.

[0017] When the heat-conducting component is installed in the installation space, the outer ring surface of the heat-conducting component is in contact with the inner wall of the first tube, and the space enclosed by the inner ring surface is connected to the opening of the second tube.

[0018] The base is detachably sleeved onto the outer surface of the first tube.

[0019] Furthermore, the heating element is installed on the side of the heat-conducting element opposite to the first tube body.

[0020] Furthermore, the heating element at least completely covers the side of the heat-conducting element that is away from the first tube body.

[0021] Furthermore, the heating element extends at least partially to cover the opening on the inner annular surface of the heat-conducting element.

[0022] Furthermore, the heating element is provided with a clearance hole in the opening formed by the inner ring surface of the heat-conducting element, and the base is also provided with an air guide column. One end of the air guide column is connected to the outside, and the other end passes through the clearance hole and is accommodated in the space enclosed by the inner ring surface of the heat-conducting element.

[0023] Furthermore, the heating device of the electronic cigarette also includes an annular limiting member, which is sleeved on the outer tube surface of the second tube body and fits against the side of the heat-conducting member facing the accommodating cavity, so as to restrict the movement of the heat-conducting member toward the accommodating cavity;

[0024] The limiting member also has multiple vent holes connecting the accommodating cavity and the heat-conducting member.

[0025] Furthermore, the limiting member is also provided with a plurality of vertical partitions protruding away from the accommodating cavity, and the inner surfaces of the plurality of vertical partitions are arranged to form an air guiding space that communicates with the internal space of the second tube.

[0026] The outer sides of the plurality of vertical partitions and the side of the limiting member opposite to the accommodating cavity form an installation space for the heat-conducting component to be installed, and the plurality of vertical partitions are spaced apart to form an air-guiding passage connecting the installation space and the air-guiding space.

[0027] Furthermore, the heat-conducting element is made of steel wire.

[0028] An electronic cigarette includes a heating device as described above.

[0029] The heating device for electronic cigarettes provided by this invention, through the setting of a heat-conducting component, can effectively reduce the temperature of non-liquid tobacco materials and thus reduce the generation of harmful substances when using existing heating components. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a disassembly diagram of the heating device of the electronic cigarette according to Embodiment 1 of the present invention;

[0032] Figure 2 yes Figure 1 A sectional view of the structure;

[0033] Figure 3 This is a cross-sectional view of a partial structure in Embodiment 1 of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the limiting member and the vertical partition member in Embodiment 1 of the present invention.

[0035] Explanation of icon numbers:

[0036] Label Name Label Name

[0037] 11 First tube body 20 Heat-conducting component

[0038] 12 Second tube body 30 Heating element

[0039] 13. Ring substrate 101 Receiving cavity

[0040] 15 Limiting component 102 Airflow passage

[0041] 16 vertical partitions, 50mm outer cover

[0042] 151 Vent hole 60 Suction nozzle

[0043] 161 Air duct 61 Air outlet

[0044] 14 Base 40 Air Column Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0046] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0047] Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] It should also be noted that, in the embodiments of the present invention, according to Figure 1 The XYZ rectangular coordinate system established in the system is defined as follows: the side located in the positive direction of the X-axis is defined as the front, and the side located in the negative direction of the X-axis is defined as the back; the side located in the positive direction of the Y-axis is defined as the left, and the side located in the negative direction of the Y-axis is defined as the right; the side located in the positive direction of the Z-axis is defined as the top, and the side located in the negative direction of the Z-axis is defined as the bottom.

[0049] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of the present invention are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive. Example 1

[0050] Please refer to Figures 1 to 4 This embodiment provides a heating device for electronic cigarettes, suitable for non-liquid tobacco materials. In this solution, non-liquid tobacco materials refer to tobacco paste or similar substances, including tobacco products other than liquid e-liquid, which can be paste, gel, or solid.

[0051] The heating device of the electronic cigarette includes a heat-conducting element 20 and a heating element 30. The heat-conducting element 20 isolates the non-liquid tobacco and the heating element 30, and transfers the heat of the heating element 30 to the non-liquid tobacco so that the non-liquid tobacco burns and vaporizes to produce smoke.

[0052] In this embodiment, the heat-conducting component 20 isolates the non-liquid fume from the heating element 30, preventing the non-liquid fume from directly contacting the heating element 30 and thus avoiding the non-liquid fume being in a high-temperature environment. The high temperature in this solution refers to the surface temperature of the heating element 30, typically -100 degrees Celsius. In this embodiment, the heat-conducting component 20 conducts heat. During the transfer of heat from the heating element 30 to the non-liquid fume, on the one hand, heat conduction is attenuated (radiated into the surrounding air); on the other hand, there is a certain distance between the heating element 30 and the non-liquid fume. During conduction over this distance, the heat-conducting component 20 radiates the heat concentrated on the surface of the heating element 30 more evenly to the entire heat-conducting component 20, thus allowing the non-liquid fume to receive a gentler and more uniform heat. In this embodiment, through the conduction of the heat-conducting component 20, the temperature received by the non-liquid fume is between -100 degrees Celsius, thereby effectively reducing the harmful substances generated by the non-liquid fume.

[0053] In this embodiment, the heat-conducting component 20 has multiple filter holes. The heat-conducting component 20 transfers the heat from the heating component 30 to the non-liquid fume and filters the flue gas generated by the combustion and gasification of the non-liquid fume. After the non-liquid fume is heated and gasified, some of its contents burn to produce flue gas, while some of its contents are not burned or are not completely burned and remain in particulate form, separating from the main body of the non-liquid fume. These parts are blocked by the heat-conducting component 20, thereby achieving the effect of purifying the flue gas.

[0054] In this embodiment, the heat-conducting element 20 is made of a metallic material and has multiple filter holes. Preferably, the heat-conducting element 20 is a steel wire structure. Steel wire has good thermal conductivity and also has dense micropores to filter flue gas.

[0055] It is understood that in practical applications, the heat-conducting component is not limited to being made of metal. For example, in other embodiments of the present invention, the heat-conducting component may also be made of ceramic material with micropores, which is also within the scope of protection of the present invention.

[0056] Please refer to Figure 2 In this embodiment, the heating device of the electronic cigarette has an airflow passage 102 that communicates with the outside and a receiving cavity 101 for containing non-liquid tobacco. The heat-conducting element 20 is at least partially located in the receiving cavity 101 to form a heating surface that contacts the non-liquid tobacco, and at least another part of the heat-conducting element 20 is exposed in the airflow passage 102 so that multiple filter holes connect the receiving cavity 101 and the airflow passage 102. The smoke generated by the heating surface flows through the multiple filter holes to the airflow passage 102 and then reaches the outside.

[0057] In one embodiment, the accommodating cavity 101 and the airflow passage 102 share a cavity within the heating device of the electronic cigarette, and the accommodating cavity 101 and the airflow passage 102 are separated by a heat-conducting element 20.

[0058] Those skilled in the art will understand that if the non-liquid fume, heat-conducting element 20, and heating element 30 are arranged from top to bottom, the flue gas generated on the heating surface can easily diffuse directly to the outside through the airflow passage 102 without sinking into the filter holes, making it difficult for the heat-conducting element 20 to play an effective filtering role. If the non-liquid fume is located below the heat-conducting element 20 and the heating element 30 is located above or in the middle of the heat-conducting element 20, the flue gas generated on the heating surface by the non-liquid fume in the accommodating cavity 101 can enter the airflow passage 102 after being filtered by the heat-conducting element 20.

[0059] Of course, when the accommodating cavity 101 and the airflow passage 102 share a cavity within the heating device of the electronic cigarette, the non-liquid tobacco and the heat-conducting component 20 can be arranged left and right or right and left, as long as the smoke generated by the non-liquid tobacco on the heating surface can be filtered by the heat-conducting component 20 and then enter the airflow passage 102.

[0060] In another embodiment, the accommodating cavity 101 and the airflow passage 102 are two independent cavities within the heating device of the electronic cigarette, and the heating device of the electronic cigarette has an air passage in the cavity wall between the accommodating cavity 101 and the airflow passage 102 to connect the airflow passage 102 and the accommodating cavity 101; at least part of the heat-conducting element 20 blocks the air passage so that the airflow passage 102 and the accommodating cavity 101 are connected only through the air path of the multiple filter holes provided by the heat-conducting element 20.

[0061] When the accommodating cavity 101 and the airflow passage 102 are two independent cavities within the heating device of an electronic cigarette, the two cavities can be arranged as follows: bottom-up, left-right, right-left, inside-outside, or outside-inside.

[0062] When the accommodating cavity 101 is located below the airflow passage 102, the air passage is opened in the upper cavity wall of the accommodating cavity 101 and is connected to the airflow passage 102. The heat-conducting element 20 blocks the air passage so that the flue gas generated by the non-liquid tobacco can only enter the airflow passage 102 through the filter hole of the heat-conducting element 20.

[0063] When the receiving cavity 101 is located to the left of the airflow passage 102, the air passage is opened on the right wall of the receiving cavity 101 and is connected to the airflow passage 102. The heat-conducting element 20 blocks the air passage, so that the flue gas generated by the non-liquid tobacco can only enter the airflow passage 102 through the filter hole of the heat-conducting element 20. Conversely, when the receiving cavity 101 is located to the right of the airflow passage 102, the air passage is opened on the left wall of the receiving cavity 101 and is connected to the airflow passage 102.

[0064] When the accommodating cavity 101 is arranged around the airflow passage 102, the air passage is opened in the lower cavity wall or inner wall of the accommodating cavity 101, and the air passage is connected to the airflow passage 102. The heat-conducting element 20 blocks the air passage, so that the flue gas generated by the non-liquid tobacco can only enter the airflow passage 102 through the filter hole of the heat-conducting element 20. Conversely, when the airflow passage 102 is arranged around the accommodating cavity 101, the air passage is opened in the lower cavity wall or outer wall of the accommodating cavity 101, and the air passage is connected to the airflow passage 102.

[0065] It should be noted that when the accommodating cavity 101 and the airflow passage 102 are two independent cavities within the heating device of an electronic cigarette, and the two cavities are arranged in a bottom-up, left-right, or right-left configuration, the non-liquid tobacco, the heat-conducting component 20, and the airflow passage 102 are arranged sequentially in a straight line, and the smoke movement path generated by the non-liquid tobacco is approximately a straight line. However, when the two cavities are arranged inside-outside or outside-inside, the smoke movement path generated by the non-liquid tobacco is a broken line. The following section elaborates on the scheme of arranging the two cavities inside-outside or outside-inside.

[0066] The accommodating cavity 101 and the airflow passage 102 are nested together, such that one of the accommodating cavity 101 and the airflow passage 102 surrounds the other, and the same end of the accommodating cavity 101 and the airflow passage 102 are both open to achieve air passage connection. At least part of the heat-conducting element 20 blocks the opening of the accommodating cavity 101, and the multiple filter holes provided by the heat-conducting element 20 connect the openings of the accommodating cavity 101 and the airflow passage 102.

[0067] In this embodiment, both the accommodating cavity 101 and the airflow passage 102 are located above the heat-conducting component 20. The airflow passage 102 has an upper port and a lower port. The upper port is connected to the outside, and the heat-conducting component 20 is partially exposed at the lower port. The accommodating cavity 101 is an open cavity with its opening facing downwards. The heat-conducting component 20 extends into the accommodating cavity 101 to contact the non-liquid smoke material. The heat-conducting component 20 blocks the opening of the accommodating cavity 101. The smoke generated by the non-liquid smoke material is transported through the filter holes of the heat-conducting component 20 to the lower port of the airflow passage 102, and then upwards to the upper port. The smoke in the airflow passage 102 can preheat the non-liquid smoke material in the accommodating cavity 101, and at the same time, it helps to reduce the temperature of the smoke when it reaches the outside, reducing the possibility of the smoke being too hot and burning the user. The smoke path is downward-lateral-upward. The flue gas path is curved, which helps to slow down the diffusion speed of the flue gas, allowing for thorough filtration and further purification of the flue gas. At the same time, it helps to further reduce the temperature of the flue gas when it reaches the outside, reducing the possibility of users being burned by excessively hot flue gas.

[0068] Please refer to Figure 2 and Figure 3 The heating device of the electronic cigarette includes an annular substrate 13, a first tube 11, a second tube 12 and a base 14;

[0069] The outer ring edge of the annular substrate 13 is provided with a first tube 11 and the inner ring edge is provided with a second tube 12. The second tube 12 is housed in the first tube 11, so that the first tube 11, the second tube 12 and the annular substrate 13 surround a cavity 101. The hollow internal space of the second tube 12 forms an airflow passage 102.

[0070] At least a portion of the heat-conducting component 20 blocks the opening at the end of the first tube 11 away from the annular substrate 13, and at least another portion of the heat-conducting component 20 has filter holes that are connected to the air passage inside the second tube 12.

[0071] The base 14 covers the heat-conducting component 20 and the first tube 11.

[0072] The annular substrate 13, the first tube 11, the second tube 12, and the base 14 form a receiving cavity 101 and an airflow passage 102, with the receiving cavity 101 surrounding the airflow passage 102. This design is simple and effectively guides the flow of non-liquid e-cigarette smoke. Due to the separation between the first tube 11 and the receiving cavity 101, the airflow passage 102 is less likely to radiate heat to the second tube 12, helping to lower its temperature and preventing burns. The smoke from the airflow passage 102 preheats the non-liquid e-cigarette within the receiving cavity 101, while also reducing the temperature of the smoke upon reaching the outside, thus minimizing the possibility of burns to the user at the opening between the airflow passage 102 and the outside environment.

[0073] In this embodiment, the heat-conducting element 20 is arranged in a ring shape. One side of the ring of the heat-conducting element 20 blocks the opening of the first tube 11, and the other side abuts against the base 14. The space enclosed by the inner ring surface of the heat-conducting element 20 is connected to the opening of the second tube 12. One of the base 14 and the inner tube wall of the first tube 11 is sleeved on the outer ring surface of the heat-conducting element 20.

[0074] In another embodiment, the length of the protrusion of the first tube 11 is greater than the length of the protrusion of the second tube 12, so that an installation space for the heat-conducting component 20 is formed between the end face of the protrusion of the first tube 11 and the end face of the protrusion of the second tube 12.

[0075] When the heat-conducting component 20 is installed in the installation space, the outer ring surface of the heat-conducting component 20 is in contact with the inner wall of the first tube 11, and the space enclosed by the inner ring surface is connected to the opening of the second tube 12.

[0076] The base 14 is detachably sleeved onto the outer tube surface of the first tube 11.

[0077] It should be noted that the heating device for the electronic cigarette provided in this embodiment uses non-liquid tobacco, not e-liquid. Non-liquid tobacco vaporizes directly upon heating and combustion, thus producing no liquid and eliminating the risk of leakage.

[0078] The first tube 11, the second tube 12, and the annular substrate 13 are integrally formed into a cartridge for ease of description. The cartridge and the base 14 are detachably connected, allowing the electronic cigarette to be used multiple times by replacing the cartridge, which is beneficial to environmental protection and reduces consumer costs.

[0079] In this embodiment, the heating element 30 is installed on the side of the heat-conducting element 20 away from the first tube body 11. The outer ring surface of the heat-conducting element 20 is covered, and the bottom surface is covered by the heating element 30, so the generated flue gas can only enter the airflow passage 102 from the inner ring surface.

[0080] The heating element 30 at least completely covers the side of the heat-conducting element 20 facing away from the first tube 11. The entire side of the heat-conducting element 20 facing away from the first tube 11 is covered by the heating element 30, which is beneficial for the heat-conducting element 20 to be heated evenly. The heating element 30 is not limited to covering the side of the heat-conducting element 20 facing away from the first tube 11, but may also extend into the interior of the heat-conducting element 20 or partially extend to the inner or outer annular surface of the heat-conducting element 20.

[0081] Preferably, the heating element 30 extends at least partially to cover the opening on the inner annular surface of the heat-conducting element 20. The inner annular surface of the heat-conducting element 20 is in contact with the heating element 30 and has a high temperature. The flue gas generated by the non-liquid smoke on the heating surface moves from the outside to the inside through the filter holes of the heat-conducting element 20 and enters the airflow passage 102. When the flue gas passes through the opening on the inner annular surface of the heat-conducting element 20, it is placed in the high-temperature environment generated by the heating element 30 and is reheated, which helps to reduce the harmful substances generated by incomplete baking.

[0082] Please refer to Figure 1 and Figure 2 The heating element 30 has a clearance hole in the opening formed by the inner ring surface of the heat-conducting element 20, which is directly opposite to the heating element 30. The base 14 also has an air guide column 40, one end of which is connected to the outside, and the other end passes through the clearance hole and is housed within the space enclosed by the inner ring surface of the heat-conducting element 20. The air guide column 40 is used to provide oxygen required for the combustion of non-liquid smoke. During assembly, the air guide column 40 also serves to position the heating element.

[0083] Please refer to Figures 2 to 4 The heating device of the electronic cigarette also includes an annular limiting member 15, which is sleeved on the outer tube surface of the second tube body 12 and fits against the side of the heat-conducting member 20 facing the accommodating cavity 101 to restrict the heat-conducting member 20 from moving into the accommodating cavity 101.

[0084] The limiting member 15 also has multiple vent holes 151 that connect the receiving cavity 101 and the heat-conducting member 20.

[0085] The limiting member 15 includes a convex ring that sleeves the outer surface of the second tube body 12 and a transverse partition that connects to the convex ring. The transverse partition is used to restrict the movement of the heat-conducting member 20 toward the accommodating cavity 101. The vent hole 151 is opened in the transverse partition.

[0086] The convex ring is sleeved on the second tube body 12 to achieve the positioning of the limiting component 15 itself, and the transverse partition is used to limit the heat-conducting component 20.

[0087] Those skilled in the art can also insert the convex ring into the second tube 12.

[0088] The limiting component 15 can be detachably sleeved or inserted into the second tube 12 to facilitate the replacement of non-liquid smoke material.

[0089] Specifically, when the non-liquid e-liquid is depleted, the cartridge is separated from the base 14, then the heat-conducting component 20 and the limiting component 15 are removed. The non-liquid e-liquid is then replenished, and the limiting component 15 and the heat-conducting component 20 are reinstalled. Of course, during this process, the limiting component 15 can be cleaned before reinstallation to maintain the cleanliness of the electronic cigarette's heating device. The heat-conducting component 20 can be replaced to keep the electronic cigarette's heating device clean while preventing the accumulation of residual particles from obstructing the flow of smoke.

[0090] Please refer to Figure 2 and Figure 4 The limiting member 15 is also provided with a plurality of vertical partitions 16 protruding from the accommodating cavity 101, and the inner surfaces of the plurality of vertical partitions 16 are arranged to form a gas guiding space that communicates with the internal space of the second tube 12.

[0091] The outer sides of the multiple vertical partitions 16 and the side of the limiting member 15 away from the accommodating cavity 101 form an installation space for the heat-conducting component 20 to be installed, and the multiple vertical partitions 16 are spaced apart to form an air passage 161 connecting the installation space and the air-conducting space.

[0092] The heat-conducting element 20 is made of steel wire. Since steel wire is used, it expands and deforms. The limiting element 15 and the vertical partition 16 limit the installation space of the heat-conducting element 20 to prevent it from becoming loose and thus ensuring effective heat conduction.

[0093] Please refer to Figure 1 and Figure 2 The heating device of the electronic cigarette also includes an outer cover 50 and a mouthpiece 60. The outer cover 50 has a tubular structure. The mouthpiece 60 and the base 14 can be detachably closed to cover the openings at both ends of the outer cover 50, forming a cavity 101 for accommodating the tobacco cartridge. The mouthpiece 60 has an air outlet 61 that communicates with the airflow passage 102. The tobacco cartridge is clamped in the cavity 101 formed by the base, the outer cover 50, and the mouthpiece 60. The base 14, the outer cover 50, and the mouthpiece 60 are detachably connected so that the tobacco cartridge can be removed for cleaning or replacement.

[0094] During installation, first place the non-liquid tobacco into the receiving cavity 101, then fit the limiting member 15 onto the first inner tube, and then fit the heat-conducting member 20 onto the vertical partition 16. Afterward, place the entire structure onto the base 14, fit the outer cover 50 onto the tobacco cartridge and connect it to the fixing seat, and fit the mouthpiece 60 onto the outer cover 50 to fix the tobacco cartridge. To replace or replenish the non-liquid tobacco, simply reverse the process. Example 2

[0095] This embodiment provides an electronic cigarette, including the heating device described above. The specific structure of the heating device is described in Embodiment 1. Since the electronic cigarette provided in this embodiment adopts all the technical features of Embodiment 1, it also possesses all the technical effects brought about by the above embodiments, and will not be repeated here.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heating device for electronic cigarettes, suitable for non-liquid tobacco, characterized in that, The heating device of the electronic cigarette includes a heat-conducting element (20) and a heating element (30), wherein the heat-conducting element (20) isolates the non-liquid tobacco and the heating element (30) and transfers the heat of the heating element (30) to the non-liquid tobacco so that the non-liquid tobacco burns and vaporizes to produce smoke; The heat-conducting component (20) has multiple filter holes. The heat-conducting component (20) transfers the heat from the heating component (30) to the non-liquid smoke material and filters the flue gas generated by the combustion and gasification of the non-liquid smoke material. The heating device of the electronic cigarette has an airflow passage (102) communicating with the outside and a receiving cavity (101) for containing the non-liquid tobacco. The heat-conducting element (20) is at least partially located in the receiving cavity (101) to form a heating surface in contact with the non-liquid tobacco, and at least another part of the heat-conducting element (20) is exposed in the airflow passage (102) so that the plurality of filter holes connect the receiving cavity (101) and the airflow passage (102). The smoke generated by the heating surface flows through the plurality of filter holes to the airflow passage (102) and then reaches the outside. The heating device of the electronic cigarette includes an annular substrate (13), a first tube (11), a second tube (12), and a base (14); the outer ring edge of the annular substrate (13) is provided with the first tube (11), and the inner ring edge is provided with the second tube (12), and the second tube (12) is housed in the first tube (11), so that the first tube (11), the second tube (12), and the annular substrate (13) surround the accommodating cavity (101), and the hollow internal space of the second tube (12) forms the airflow passage (102); at least a portion of the heat-conducting element (20) blocks the opening of the first tube (11) away from the annular substrate (13), and at least another portion of the heat-conducting element (20) has filter holes that are connected to the air passage of the internal space of the second tube (12); the base (14) covers the heat-conducting element (20) on the first tube (11); The accommodating cavity (101) and the airflow passage (102) are two independent cavities within the heating device of the electronic cigarette. The heating device of the electronic cigarette has an air passage in the cavity wall between the accommodating cavity (101) and the airflow passage (102) to connect the airflow passage (102) and the accommodating cavity (101). At least part of the heat-conducting element (20) blocks the air passage so that the airflow passage (102) and the accommodating cavity (101) are connected only through the multiple filter holes provided by the heat-conducting element (20). The heating device of the electronic cigarette also includes an annular limiting member (15), which is sleeved on the outer tube surface of the second tube body (12) and fits against the side of the heat-conducting member (20) facing the accommodating cavity (101) to restrict the heat-conducting member (20) from moving into the accommodating cavity (101); the limiting member (15) also has a plurality of vent holes (151) connecting the accommodating cavity (101) and the heat-conducting member (20); The limiting member (15) is further provided with a plurality of vertical partitions (16) protruding away from the accommodating cavity (101). The inner surfaces of the plurality of vertical partitions (16) are arranged to form an air guiding space that communicates with the internal space of the second tube body (12). The outer sides of the plurality of vertical partitions (16) and the side of the limiting member (15) away from the accommodating cavity (101) form an installation space for the installation of the heat-conducting component (20). The plurality of vertical partitions (16) are spaced apart to form an air guiding passage (161) that connects the installation space and the air guiding space.

2. The heating device for an electronic cigarette as described in claim 1, characterized in that, The accommodating cavity (101) and the airflow passage (102) share a cavity within the heating device of the electronic cigarette, and the accommodating cavity (101) and the airflow passage (102) are separated by the heat-conducting element (20).

3. The heating device for an electronic cigarette as described in claim 1, characterized in that, The accommodating cavity (101) and the airflow passage (102) are nested together, such that one of the accommodating cavity (101) and the airflow passage (102) surrounds the other. The same end of the accommodating cavity (101) and the airflow passage (102) are both open to facilitate airflow. At least part of the heat-conducting element (20) blocks the opening of the accommodating cavity (101), and the plurality of filter holes provided by the heat-conducting element (20) connect the openings of the accommodating cavity (101) and the airflow passage (102).

4. The heating device for an electronic cigarette as described in claim 1, characterized in that, The heat-conducting component (20) is arranged in a ring shape. One side of the ring of the heat-conducting component (20) blocks the opening of the first tube (11), and the other side abuts against the base (14). The space enclosed by the inner ring surface of the heat-conducting component (20) is connected to the opening of the second tube (12). One of the inner tube walls of the base (14) and the first tube (11) is sleeved on the outer ring surface of the heat-conducting component (20).

5. The heating device for an electronic cigarette as described in claim 4, characterized in that, The first tube (11) protrudes for a greater length than the second tube (12) protrudes, so that an installation space for the heat-conducting component (20) is formed between the end face of the first tube (11) and the end face of the second tube (12); when the heat-conducting component (20) is installed in the installation space, the outer ring surface of the heat-conducting component (20) is in contact with the inner tube wall of the first tube (11), and the space enclosed by the inner ring surface is connected to the opening of the second tube (12); the base (14) is detachably sleeved on the outer tube surface of the first tube (11).

6. The heating device for an electronic cigarette as described in claim 4, characterized in that, The heating element (30) is installed on the side of the heat-conducting element (20) away from the first tube body (11).

7. The heating device for an electronic cigarette as described in claim 6, characterized in that, The heating element (30) at least completely covers the side of the heat-conducting element (20) away from the first tube (11).

8. The heating device for an electronic cigarette as described in claim 7, characterized in that, The heating element extends at least partially to an opening that covers the inner annular surface of the heat-conducting element.

9. The heating device for an electronic cigarette as described in claim 6, characterized in that, The heating element (30) is provided with a clearance hole in the opening formed by the inner ring surface of the heat-conducting element (20) and the base (14) is also provided with an air guide column (40). One end of the air guide column (40) is connected to the outside, and the other end passes through the clearance hole and is placed in the space enclosed by the inner ring surface of the heat-conducting element (20).

10. The heating device for an electronic cigarette as described in any one of claims 1 to 9, characterized in that, The heat-conducting component (20) is made of steel wire.

11. An electronic cigarette, characterized in that, The heating device for an electronic cigarette as described in any one of claims 1 to 10.

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