Aerosol generation device and heating assembly thereof

Abstract

The present invention relates to an aerosol generation device and a heating assembly thereof. The heating assembly comprises a bracket body and a heating body for heating an aerosol generation substrate, wherein the heating body is arranged in the bracket body in a penetrating mamrer, and a first end of the heating body extends from the bracket body; and a channel for the heating body to pass tluough is arranged in the bracket body, the channel penetrates the bracket body, and the channel is internally provided with a sealing member surrounding the outside of the heating body and at least partially making contact with tl1e heating body. In the present invention, the first end of the heating body can be inserted into the aerosol generation substracte from a bottom end of the aerosol generation substracte, the aerosol generation substrate is heated to generate an aerosol, and the sealing member seals a gap between the heating body and the bracket body, such that the aerosol carmot pass tluough the bracket body and flows out of the bracket body and the aerosol is prevented from entering a power supply or a main board region by blocking the flow of the aerosol, thereby preventing the power supply or the main board from being corroded, and prolonging the service life of the aerosol generation device.

Description

FIELD

[0001] The invention relates to the field of atomization, and more particularly, relates to an aerosol generation device and a heating assembly thereof.BACKGROUND

[0002] A heat-not-burn (HNB) atomization device is an aerosol generation device which heats an aerosol forming matrix in a HNB manner to form a smokable aerosol. In the prior art, a heating unit is mounted in a housing of the aerosol generation device, most aerosol generated by heating an aerosol forming matrix using the heating unit is inhaled by users and thus removed from the device, and a small part of aerosol is condensed in the device into liquid, which can easily flow to a power supply or mainboard area and cause corrosion to the power supply or mainboard, thus shortening the service life of the aerosol generation device.SUMMARY

[0003] The problem to be solved by the invention is to provide an aerosol generation device and a heating assembly thereof to overcome the above-mentioned defects in the prior art. The technical solution the present invention adopts to solve the problem is to construct a heating assembly, comprising a support and a heating unit for heating an aerosol forming matrix, wherein the heating unit penetrates through the support and has a first end extending out of the support;

[0004] A channel allowing the heating unit to penetrate through is formed in the support, the channel runs through the support, and a sealing element surrounding the heating unit and at least partially in contact with the heating unit is arranged in the channel.

[0005] Preferably, the heating assembly further has a flange arranged at a second end which is opposite to the first end of the heating unit to fix the heating unit in the support.

[0006] Preferably, the channel comprises a first chamber for receiving and fixing the flange and a second chamber connected to a side of the first chamber, and the second chamber is closer to the first end of the heating unit relative to the first chamber;

[0007] The sealing element comprises a first sealing element, which is arranged in the second chamber and is in contact with the heating unit.

[0008] Preferably, the channel further comprises a first through-hole connected to the second chamber and allowing the heating unit to extend out, and the first through-hole is closer to the first end of the heating unit relative to the second chamber;

[0009] A cross-section of the first chamber, a cross section of the second chamber and a cross-section of the first through-hole decrease sequentially.

[0010] Preferably, pads are arranged between the first end of the heating unit and the flange and are close to the flange, and the pads are located in the second chamber and are surrounded by and in contact with the first sealing element.

[0011] Preferably, insulating layers for insulation protection of the pads are arranged on the pads.

[0012] Preferably, the heating assembly further comprises electrode leads each having an end connected to the corresponding pad, lead through-holes allowing the electrode leads to be inserted therein are formed in the flange, and ends, away from the pads, of the electrode leads penetrate through the lead through-holes of the flange.

[0013] Preferably, the first sealing element comprises a glue sealing element formed by liquid glue, which is filled in the second chamber around the heating unit and solidified.

[0014] Preferably, the first sealing element comprises a silicone sealing element formed by liquid silicone, which is sprayed and filled in the second chamber around the heating unit and solidified.

[0015] Preferably, the channel further comprises a second through-hole connected to the first chamber and allowing the second end of the heating unit to extend out, and the second through-hole is closer to the second end of the heating unit relative to the first chamber;

[0016] A cross-section of the first chamber, a cross-section of the second through-hole and a cross-section of the heating unit decrease sequentially.

[0017] Preferably, the sealing element comprises a second sealing element, which is arranged in the first chamber and is in contact with the flange.

[0018] Preferably, the second sealing element is arranged between an end, close to the second through-hole, of the flange and the support, and surrounds the heating unit.

[0019] Preferably, the second sealing element comprises a 3M adhesive tape.

[0020] Preferably, the heating assembly further comprises a projection arranged on a periphery of the support, a groove with an opening facing away from the channel is formed in the projection, and a sealing ring is arranged in and surrounds the groove.

[0021] Preferably, the support comprises a support body and a support seat detachably arranged on the support body, the support body is provided with a first sub-channel, the support seat is provided with a second sub-channel, and the first sub-channel is connected to the second sub-channel to form the channel.

[0022] Preferably, a clamping structure is arranged between the support body and the support seat, and comprises a clamping slot formed in one of the support body and the support seat, and a clamping portion arranged on the other one of the support body and the support seat.

[0023] Preferably, the heating unit comprises a cylinder main body and a tapered head arranged at a first end of the cylindrical main body.

[0024] The present invention further constructs an aerosol generation device, comprising the heating assembly according to any one of the above.

[0025] The implementation of the aerosol generation device and the heating assembly thereof has the following beneficial effects:

[0026] The first end of the heating unit can be inserted into the aerosol forming matrix from the bottom of the aerosol forming matrix, to heat the aerosol forming matrix to generate aerosol, and the sealing element seals a gap between the heating unit and the support to prevent the aerosol from flowing through and out of the support. In this way, the aerosol is prevented from flowing into a power supply or mainboard area and will not corrode the power supply or mainboard, thus prolonging the service life of the aerosol generation device.BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The invention will be further described below in conjunction with accompanying drawings and embodiments. In the drawings: FIG. 1 is a perspective view of a heating assembly in a first embodiment of the invention; FIG. 2 is a sectional view of the heating assembly in FIG. 1; FIG. 3 is a perspective, exploded view of the heating assembly in FIG. 1; FIG. 4 is a view showing a connection structure of a heating unit, a flange and electrode leads in FIG. 3; FIG. 5 is an exploded sectional view of a support in FIG. 1; FIG. 6 is a sectional view of the support in FIG. 1; and FIG. 7 is a sectional view of the heating assembly in a second embodiment of the invention.

[0028] In the drawings: 1, support; 11, support body; 111, top wall; 1111, first through-hole; 112, first surrounding wall; 1121, clamping portion; 12, support seat; 121, bottom wall; 1211, second through-hole; 122, second surrounding wall; 1221, clamping slot; 13, channel; 131, first sub-channel; 132, second sub-channel; 1311, first chamber; 1312, second chamber; 14, projection; 141, groove; 142, sealing ring; 15, first end; 16, second end; 2, heating unit; 21, main body; 211, pad; 212, first end; 22, head; 23, first end; 24, second end; 3, flange; 31, central through-hole; 32, lead through-hole; 4, electrode lead; 41, first lead; 42, second lead; 43, third lead; 44, fourth lead; 51, first sealing element; 52, second sealing element.DESCRIPTION OF THE EMBODIMENTS

[0029] To make the purposes, technical solutions and advantages of the invention clearer, the invention will be described in further detail below in conjunction with embodiments and accompanying drawings. Illustrative implementations of the invention and descriptions thereof are merely used for explaining the invention, and should not be construed as limitations of the invention.

[0030] The invention provides an aerosol generation device. The aerosol generation device is a HNB device, which heats and bakes an aerosol forming matrix to allow aerosol extractives to be released from the aerosol forming matrix in a HNB state and to be inhaled by users. In some embodiments, the aerosol forming matrix may be cylindrical and contain aromatic solid substances of plant leaves, and essences and fragrances can be further added to the plant leaves according to demands.

[0031] The aerosol generation device comprises a housing, and a heating assembly, a power supply and a mainboard arranged in the housing. The heating assembly is configured to be inserted into the aerosol forming matrix, such that heat generated when the heating assembly is powered on can be transmitted to the aerosol forming matrix to heat the aerosol forming matrix to release aerosol. The power supply is electrically connected to the heating assembly and configured to supply power to the heating assembly, and the power supply and the heating assembly are controlled by a switch to be connected or disconnected. A related main control circuit is arranged on the mainboard. In some embodiments, the power supply and the mainboard may be arranged below the heating assembly; alternatively, part of the structure of the power supply and part of the structure of the mainboard are arranged below the heating assembly.

[0032] FIG. 1 and FIG. 2 illustrate a heating assembly in a first embodiment of the invention. As shown in FIG. 1 and FIG. 2, the heating assembly comprises a heating unit 2 and a support 1, wherein the heating unit 2 is configured to heat and bake an aerosol forming matrix, and the support 1 is configured to mount the heating unit 2 in an aerosol generation device.

[0033] The heating unit 2 has a first end 23 and a second end 24 opposite to the first end 23. As shown in FIG. 4, the heating unit 2 comprises a cylindrical main body 21 and a tapered head 22, the cylindrical main body 21 has a first end 212 corresponding to the first end 23 of the heating unit 2 and a second end 212 corresponding to the second end 24 of the heating unit 2, and the tapered head 22 is arranged at the first end 212 of the main body 21.

[0034] The heating unit 2 penetrates into the support 1, the first end 23 of the heating unit 2 extends out of the support 1 to be inserted into the aerosol forming matrix from the bottom of the aerosol forming matrix, and by adopting the tapered head 22, the heating unit 2 can be easily inserted into the aerosol forming matrix. In some embodiments, the main body 21 may be flake-like, and the head 22 may be pointed. Wherein, the heating unit 2 may be made from ceramic. In some embodiments, the heating unit 2 may be made from metal or other materials.

[0035] The support 1 has a first end 15 and a second end 16 opposite to the first end 15, a channel 13 allowing the heating unit 2 to penetrate through is formed in the support 1, the channel 13 runs through the first end 15 and the second end 16 of the support 1, the first end 23 of the heating unit 2 extends out of the first end 15 of the support 1, and the second end 24 of the heating unit 2 corresponds to the second end 16 of the support 1.

[0036] A sealing element is arranged in the channel 13, and the sealing element surrounds the heating unit 2 and is at least partially in contact with the heating unit 2. It can be understood that the sealing element seals a gap between the heating unit 2 and the support 1 to prevent aerosol from flowing through and out of the support 1. In this way, aerosol is prevented from flowing into the power supply or mainboard area and will not corrode the power supply or the mainboard, thus prolonging the service life of the aerosol generation device.

[0037] The heating assembly further comprises a flange 3, and the flange 3 is arranged on the heating unit 2 and configured to fix the heating unit 2 in the support 1. Wherein, the flange 3 may be arranged at the second end 24 of the heating unit 2. Wherein, the flange 3 may be made from ceramic and integrally sintered with the heating unit 2. In some embodiments, the flange 3 may be provided with a central through-hole 31 allowing the heating unit 2 to penetrate through and to be fixed, and the central through-hole 31 may be located in the middle of the flange 3.

[0038] Referring also to FIG. 6, the channel 13 comprises a first chamber 1311 for receiving and fixing the flange 3 and a second chamber 1312 connected to one side of the first chamber 1311, wherein the second chamber 1312 is closer to the first end 23 of the heating unit 2 relative to the first chamber 1311, the sealing element comprises a first sealing element 51 arranged in the second chamber 1312, and the first sealing element 51 is in contact with the heating unit 2.

[0039] The channel 13 further comprises a first through-hole 1111 allowing the first end 23 of the heating unit 2 to extend out, and the first through-hole 1111 is connected to the second chamber 1312 and is closer to the first end 23 of the heating unit 2 relative to the second chamber 1312. Wherein, the first through-hole 1111 is cylindrical and has a diameter equal to or slightly greater than that of the heating unit 2, and the cross-section of the first chamber 1311, the cross-section of the second chamber 1312 and the cross-section of the first through-hole 1111 decrease sequentially to prevent the heating unit 2 from becoming disengaged from the first end 15 of the support 1 via the first through-hole 1111.

[0040] The heating assembly further comprises pads 211 arranged on the heating unit 2, and the pads 211 may be partially or entirely located between the first end 23 of the heating unit 2 and the flange 3 and are close to the flange 3, wherein the pads 211 located in the second chamber 1312 are surrounded by and in contact with the first sealing element 51, such that the pads 211 are protected from being corroded.

[0041] In some embodiments, an insulating layer may be arranged on the pad 211 and is used for insulation protection of the pad 211 to protect the pad 211 from being corroded by aerosol. It can be understood that in an embodiment where the insulating layer is arranged on the pad 211, the first sealing element 51 may not surround or may partially surround the pad 211, and the pad 211 can still be protected from being corroded. Of course, in an embodiment where the sealing element 51 surrounds and is in contact with the pad 211 and the insulating layer is arranged on the pad 211, the pad 211 can be better protected.

[0042] Wherein, the first sealing element 51 may be a glue sealing element formed by liquid glue, which is filled in the second chamber 1312 around the heating unit 2 and solidified, or may be a silicone sealing element formed by liquid silicone, which is sprayed and filled in the second chamber 1312 around the heating unit 2 and solidified. By adopting the first sealing element 51, the situation that aerosol flows into the second chamber 1312 via the first through-hole 1111 of the support 1 and then flows through the support 1 can be prevented, and the pad 211 can be prevented from being corroded.

[0043] To realize heating and heating control of the heating unit 2, a resistive heating circuit and a resistive temperature measurement circuit are printed on the heating unit 2, wherein the resistive heating circuit is made from an electrically conductive slurry with a preset resistance and when powered on, implements resistive heating to supply heat to the aerosol forming matrix; and the resistive temperature measurement circuit is made from an electrically conductive slurry with a preset resistance lower than the preset resistance of the resistive heating circuit, and is preferably made from a resistive material with the TCR property, and when the resistive temperature measurement circuit is powered on, the resistance of the resistive temperature measurement circuit can be obtained to obtain the corresponding temperature of the resistive temperature measurement circuit, and the temperature of the resistive temperature measurement circuit represents the temperature of the heating unit 2, such that heating control of the resistive heating circuit can be realized by controlling the temperature of the resistive temperature measurement circuit.

[0044] In some embodiments where the heating unit 2 comprises a ceramic matrix, the heating circuit and the temperature measurement circuit may be formed on a ceramic membrane by printing, and then the ceramic membrane is wound on the ceramic matrix of the heating unit 2 to be fired with the ceramic matrix. In some embodiments, the heating circuit and the temperature control circuit may be formed on the heating unit 2 by performing surface coating on the heating unit 2.

[0045] The heating assembly further comprises electrode leads 4, wherein the electrode leads 4 each have an end connected to the pad 211 and are configured to lead out electrodes of the resistive heating circuit and the resistive temperature measurement circuit on the heating unit 2 to connect the resistive heating circuit and the resistive temperature measurement circuit to the power supply and the mainboard to realize power supply and control. Wherein, the electrode leads 4 comprise two heating leads for leading out the electrode of the resistive heating circuit and two temperature measurement leads for leading out the electrode of the resistive temperature measurement circuit. It can be understood that the two heating leads are electrically connected to the positive pole and the negative pole of the power supply respectively, and the two temperature measurement leads are electrically connected to the positive pole and the negative pole of the power supply respectively. In some embodiments, the electrode leads 4 may comprise three leads, wherein one of the leads is shared by the resistive heating circuit and the resistive temperature measurement circuit.

[0046] As shown in FIG. 4, the electrode leads 4 comprise a first lead 41, a second lead 42, a third lead 43 and a fourth lead 44, wherein any two leads may be used as heating leads or temperature detection leads. For the convenience of description, in this embodiment, the first lead 41 and the third lead 43 are used as heating leads, and the second lead 42 and the fourth lead 44 are used as temperature detection leads.

[0047] It can be understood that the number of the pads 211 is the same as the number of the electrode leads 4. The pads 211 comprise two heating pads arranged on the resistive heating circuit and two temperature measurement pads arranged on the resistive temperature measurement circuit. For the convenience of description, the pads 211 comprise a first pad, a second pad, and a third pad which respectively correspond to the first lead 41, the second lead 42, the third lead 43 and the fourth lead 44, by way of example. The pads may be regularly arranged at intervals in the circumferential direction of the heating unit 2.

[0048] Wherein, the first pad and the second pad may be located between the first end 23 of the heating unit 2 and the flange 3 and are close to the flange 3, and may be located at the same altitude. The third pad and the fourth pad may be located between the second end 24 of the heating unit 2 and the flange 3 and are close to the flange 3. In this way, all the pads are arranged in a staggered manner, such that the leads can be led out and arranged easily.

[0049] Lead through-holes 32 allowing the electrode leads 4 to be inserted and fixed therein are formed in the flange 3, and the lead through-holes 32 are identical in number to the pads 211 which are located between the first end 23 of the heating unit 2 and the flange 3 and are close to the flange 3,and the lead through-holes 32 are correspond in position to the pads 211 which are located between the first end 23 of the heating unit 2 and the flange 3 and are close to the flange 3, such that the ends, away from the first pad and the second pad, of the first lead 41 and the second lead 42 can penetrate through the lead through-holes 32 in the flange 3 and lead out. In some embodiments, the number of the lead through-holes 32 is the same as the number of the pads 211, that is, one end of the third lead 43 and one end of the fourth lead 44 penetrate through the lead through-holes 32 and are welded on the third pad and the fourth pad, such that the integrity of the third lead 43, the fourth lead 44 and the heating unit 2 is improved.

[0050] The channel 13 further comprises a second through-hole 1211 allowing the second end 24 of the heating unit 2 to extend out, and the second through-hole 1211 is connected to the first chamber 1311 and is closer to the second end 24 of the heating unit 2 relative to the first chamber 1311. Wherein, the cross-section of the first chamber 1311, the cross-section of the second through-hole 1211 and the cross-section of the heating unit 2 decrease sequentially, such that the heating unit 2 is prevented from becoming disengaged from the second end 16 of the support 1 via the second through-hole 1211, and the installation of the second end 24 of the heating unit 2 is facilitated.

[0051] Wherein, the second through-hole 1211 is cylindrical and has a diameter which is greater than that of the heating unit 2. The third pad and the fourth pad may be partially or entirely received in the second through-hole 1211, that is, the second through-hole 1211 provide a reserved space for welding the third lead 43 and the fourth lead 44 on the heating unit 2, or for receiving the third lead 43 and the fourth lead 44.

[0052] Wherein, the first lead 41 and the second lead 42 extend out via the second through-hole 1211 after penetrating through the lead through-holes 32, and ends, opposite to the ends connected to the corresponding pads, of the third lead 43 and the fourth lead 44 extend out via the second through-hole 1211, such that the leads can be connected to the power supply and the mainboard. It can be understood that the first sealing element 51 is arranged in the second chamber 1312, such that aerosol cannot flow into the power supply or mainboard region positioned below, thus protecting the power supply and the mainboard from being corroded by aerosol.

[0053] Further, as shown in FIG. 3 and FIG. 6, the heating assembly further comprises a projection 14 arranged on the periphery of the support 1, a groove 141 with an opening facing away from the channel 13 is formed in the projection 14, and a sealing ring 142 is arranged in and surrounds the groove 141. It can be understood that the projection 14 and the sealing ring 142 can prevent aerosol from flowing to the space below the support 1 along the periphery of the support 1 from the first end 23 of the heating unit 1, thus protecting the power supply and the mainboard from being corroded. Wherein, the sealing ring 142 may be a sealing ring made from silicone.

[0054] Further, as shown in FIG. 3 and FIG. 5, the support 1 comprises a support body 11 and a support seat 12 detachably arranged on the support body 11, the support body 11 is provided with a first sub-channel 131 penetrating through the support body 11, the support seat 12 is provided with a second sub-channel 132 penetrating through the support seat 12, and the first sub-channel 131 is connected to the second sub-channel 132 to form the channel 13. Wherein, the support body 11 and the support seat 12 are located at the first end 15 and the second end 16 of the support 1 respectively.

[0055] As shown in FIG. 6, the support body 11 comprises a top wall 111 and a first surrounding wall 112 arranged on the top wall 111 in an encircling manner, the first through-hole 1111 is formed in the top wall 111, a support body cavity with a stepped cross-section is defined by the first surrounding wall 112, the cross-section of the first surrounding wall 112 close to the top wall 111 is smaller than the cross-section of the first surrounding wall 112 away from the top wall 111, the cross-section of the first surrounding wall 112 away from the top wall 111 matches the flange 3, and the first through-hole 1111 is connected to the support body cavity to form the first sub-channel 131.

[0056] The support seat 12 comprises a bottom wall 121 and a second surrounding wall 122 arranged on the bottom wall 121 in an encircling manner, and the second through-hole 1211 is formed in the bottom wall 121. The second surrounding wall 122 is cylindrical to define a support seat cavity, and the second through-hole 1211 is connected to the support seat cavity to form the second sub-channel 132.

[0057] Wherein, the second surrounding wall 122 is disposed around the periphery of the first supporting wall 112, and an end of the first surrounding wall 112 abuts against the bottom wall 121. In this way, the second chamber 1312 is defined jointly by the portion, close to the top wall 111, of the support body cavity and the top wall 111, and the first chamber 1311 is defined jointly by the portion, away from the top wall 111, of the support body cavity and the bottom wall 121.

[0058] A clamping structure for detachably connecting the support body 11 and the support seat 12 is arranged between the support body 11 and the support seat 12. At least two clamping structures may be regularly arranged around the support body 11 and the support seat 12 at intervals.

[0059] As shown in FIG. 3, FIG. 5 and FIG. 6, the clamping structure comprises a clamping slot 1221 formed in the support seat 12 and a clamping portion 1121 arranged on the support body 11. Wherein, the clamping slot 1221 may be rectangular and formed in the support seat 12. The clamping portion 1121 may be protrusive. An upper surface of the clamping portion 1121 is matched with a corresponding surface of the clamping slot 1221, such that when the clamping portion 1121 is clamped in the clamping slot 1221, the upper surface of the clamping portion 1121 can be abutted against the corresponding surface of the clamping slot 1221, thus clamping the clamping portion 1121 in the clamping slot 1221.

[0060] Wherein, the height of the clamping portion 1121 is equal to that of the clamping slot 1221 or is slightly less than that of the clamping slot 1221 to fulfil a good clamping effect. In some embodiments, the thickness of the clamping portion 1121 is less than that of the clamping slot 1221, such that the clamping portion 1121 can be easily disassembled from the clamping slot 1221. In some embodiments, a slope which becomes gradually thinner from the top wall 111 to the bottom wall 121 is arranged on a side wall of the clamping portion 1121, such that the support body 11 can be easily assembled on or dissembled from the support seat 12. In some embodiments, the clamping slot 1221 is formed in the support body 11, and the clamping portion 1121 is arranged on the support seat 12.

[0061] Wherein, the projection 14 may be arranged at an end, corresponding to the top wall 111, of the support body 11, and an upper surface of the projection 14 is flush with an upper surface of the top wall 111. In some embodiments, the projection 14 may be arranged on the support seat 12.

[0062] Further, the flange 3 may be rectangular, with one side face being arc-shaped. In some embodiments, the flange 3 may be in other irregular shapes. It can be understood that the irregular shape of the flange 3 allows users to distinguish different leads easily and recognize the direction quickly during installation. In some embodiments, the flange 3 may be cylindrical or in other regular shapes.

[0063] It can be understood that the shape and size of the second chamber 1312 defined by the first surrounding wall 112 and the second surrounding wall 122 match the shape and size of the flange 3, such that the leads can be connected to the power supply and the mainboard when the heating assembly is mounted in the housing.

[0064] In some embodiments, a mounting groove for mounting the heating assembly is formed in the housing of the aerosol generation device, and the shape of the mounting groove matches the shape of the support 1. The power supply and the mainboard are arranged below the mounting groove, such that the leads can be correspondingly connected to the power supply and the mainboard when the heating assembly is received in the mounting groove, and a gap between the projection 14 and the mounting groove can be sealed by the sealing ring 142. When the heating unit 2 generates heat to bake an aerosol forming matrix to release aerosol, the first sealing ring 51 prevents the aerosol form flowing into the power supply and mainboard area via the second through-hole 1211, and the sealing ring 142 prevents the aerosol from flowing into the power supply and mainboard area via the gap between the support body 11 and the mounting groove, thus effectively protecting the power supply and the mainboard from being corroded by the aerosol.

[0065] As shown in FIG. 3 and FIG. 4, during manufacture of the heating assembly, the first lead 41 and the second lead 42 penetrate through and are fixed in the lead through-holes 32 of the flange 3, and are welded on the heating unit 2 through the first pad and the second pad respectively; then, the third lead 43 and the fourth lead 44 are welded on the heating unit 2 through the third pad and the fourth pad respectively, such that a heating unit assembly is formed.

[0066] The heating unit assembly comprises a first end corresponding to the first end 23 of the heating unit 2 and a second end corresponding to the second end 24 of the heating unit 2. The first end of the heating unit assembly penetrates through the first sub-channel 131 of the support body 11 and extends out via the first through-hole 1111, the second end of the heating unit assembly penetrates through the second sub-channel 132 of the support seat 12 and extends out via the second through-hole 1211, and the clamping portions 1121 on the support body 11 are respectively and correspondingly clamped in the clamping slots 1221 of the support seat 12, such that the installation of the heating assembly is completed. It can be understood that the above manufacturing method is merely one possible method for manufacturing the heating assembly, and this embodiment has no limitation to the welding sequence of the leads and the assembly sequence of parts.

[0067] Wherein, the leads may have approximately the same length, such that the first lead 41, the second lead 42, the third lead 43 and the fourth lead 44 in the heating unit assembly extend out by different lengths. In an embodiment where the flange 3 is in an irregular shape, different leads can be easily distinguished, and when the heating assembly is mounted in the mounting groove in the housing, the leads can be respectively connected to corresponding ports of the power supply and the mainboard.

[0068] FIG. 7 illustrates the heating assembly in a second embodiment of the invention. The heating assembly in the second embodiment differs from the heating assembly in the first embodiment in that the sealing element comprises a second sealing element 52, which is arranged in the first chamber 1311 and is in contact with the flange 3. Specifically, the second sealing element 52 is arranged between an end close to the second through-hole 1211 and the support 1, and surrounds the heating unit 2, and is in contact with the flange 3 and the support 1.

[0069] In an embodiment where the support 1 comprises the support body 11 and the support seat 12 detachably arranged on the support body 11, as shown in FIG. 7, the second sealing element 52 is arranged between the flange 3, the end of the first surrounding wall 112 and the bottom wall 121, seals a gap defined by the flange 3, the first surrounding wall 112 and the bottom wall 121, and also seals a gap between the first surrounding wall 112 and the bottom wall 121. Wherein, the second sealing element 52 has an oil-proof and water-proof function, and may be a 3M tape, such as a 3M double-faced adhesive tape. In some embodiments, the second sealing element 52 may be other adhesives with a sealing function.

[0070] It can be understood that the second sealing element 52 seals a gap between the flange 3 in the first chamber 1311 and the support 1 to prevent aerosol from flowing through the first through-hole 1111, the second chamber 1312 and the first chamber 1311 to the power supply and mainboard area via the second through-hole 1211.

[0071] It can be understood that, in one embodiment, either the first sealing element 51 in the second chamber 1312 or the second sealing element 52 in the first chamber 1311 may be arranged, and a better sealing effect will be realized if both the first sealing element 51 and the second sealing element 52 are arranged. It can be understood that in an embodiment where the first sealing element 51 is not arranged in the second chamber 1312, insulating layers are arranged on all pads 211 in the second chamber 1312.

[0072] It can be understood that, in the first embodiment and the second embodiment, the insulating layer is used for insulation protection of the pad 211 to prevent the pad 211 from being corroded by aerosol. In some embodiments, the insulating layer may wrap around the pad 211 to realize insulation protection of the pad 211. Specifically, when the leads are welded on corresponding pads 211 with solder, the solder closely penetrates through the insulating layers to be welded on the corresponding pads 211, wherein holes allowing the solder to penetrate through may be formed in the insulating layers. In some embodiments, after the leads are welded on the corresponding pads 211 with the solder, the insulating layers wrap around both the solder and the pads 211, wherein the insulating layers may wrap around the leads in the solder area.

[0073] The above embodiments merely illustrate preferred implementations of the invention, and are specifically described in detail, but they should not be construed as limitations of the patent scope of the invention. It should be pointed out that people with ordinary skill in the art can freely combine the above technical features and make some transformations and improvements without departing from the concept of the invention, and all these combinations, transformations and improvements should fall within the protection scope of the invention. Therefore, all equivalent transformations and modifications made according to the scope of the claims of the invention should fall within the scope of the claims of the invention.

Claims

1. A heating assembly, comprising a support (1) and a heating unit (2) for heating an aerosol forming matrix, wherein the heating unit (2) penetrates through the support (1) and has a first end (23) extending out of the support (1); a channel (13) allowing the heating unit (2) to penetrate through is formed in the support (1), the channel (13) runs through the support (1), and a sealing element surrounding the heating unit (2) and at least partially in contact with the heating unit (2) is arranged in the channel (13).

2. The heating assembly according to Claim 1, wherein the heating assembly further has a flange (3) arranged at a second end (24) which is opposite to the first end (23) of the heating unit (2) to fix the heating unit (2) in the support (1).

3. The heating assembly according to Claim 2, wherein the channel (13) comprises a first chamber (1311) for receiving and fixing the flange (3) and a second chamber (1312) connected to a side of the first chamber (1311), and the second chamber (1312) is closer to the first end (23) of the heating unit (2) relative to the first chamber (1311); the sealing element comprises a first sealing element (51), which is arranged in the second chamber (1312) and is in contact with the heating unit (2).

4. The heating assembly according to Claim 3, wherein the channel (13) further comprises a first through-hole (1111) connected to the second chamber (1312) and allowing the heating unit (2) to extend out, and the first through-hole (1111) is closer to the first end (23) of the heating unit (2) relative to the second chamber (1312); a cross-section of the first chamber (1311), a cross section of the second chamber (1312) and a cross-section of the first through-hole (1111) decrease sequentially.

5. The heating assembly according to Claim 3, wherein pads (211) are partially or entirely arranged between the first end (23) of the heating unit (2) and the flange (3) and are close to the flange (3), and the pads (211) are located in the second chamber (1312) and are surrounded by and in contact with the first sealing element (51);6. The heating assembly according to Claim 5, wherein insulating layers for insulation protection of the pads (211) are arranged on the pads (211).

7. The heating assembly according to Claim 6, wherein the heating assembly further comprises electrode leads (4) each having an end connected to the corresponding pad (211), lead through-holes (32) allowing the electrode leads (4) to be inserted therein are formed in the flange (3), and ends, away from the pads (211), of the electrode leads (4) penetrate through the lead through-holes (32) of the flange (3).

8. The heating assembly according to Claim 3, wherein the first sealing element (51) comprises a glue sealing element formed by liquid glue, which is filled in the second chamber (1312) around the heating unit (2) and solidified9. The heating assembly according to Claim 3, wherein the first sealing element (51) comprises a silicone sealing element formed by liquid silicone, which is sprayed and filled in the second chamber (1312) around the heating unit (2) and solidified.

10. The heating assembly according to Claim 3, wherein the channel (13) further comprises a second through-hole (1211) connected to the first chamber (1311) and allowing the second end (24) of the heating unit (2) to extend out, and the second through-hole (1211) is closer to the second end (24) of the heating unit (2) relative to the first chamber (1311); a cross-section of the first chamber (1311), a cross-section of the second through-hole (1211) and a cross-section of the heating unit (2) decrease sequentially.

11. The heating assembly according to Claim 10, wherein the sealing element comprises a second sealing element (52), which is arranged in the first chamber (1311) and is in contact with the flange (3).

12. The heating assembly according to Claim 11, wherein the second sealing element (52) is arranged between an end, close to the second through-hole (1211), of the flange (3) and the support (1), and surrounds the heating unit (2).

13. The heating assembly according to Claim 11, wherein the second sealing element (52) comprises a 3M adhesive tape.

14. The heating assembly according to Claim 1, wherein the heating assembly further comprises a projection (14) arranged on a periphery of the support (1), a groove (141) with an opening facing away from the channel (13) is formed in the projection (14), and a sealing ring (142) is arranged in and surrounds the groove (141).

15. The heating assembly according to Claim 1, wherein the support (1) comprises a support body (11) and a support seat (12) detachably arranged on the support body (11), the support body (11) is provided with a first sub-channel (131), the support seat (12) is provided with a second sub-channel (132), and the first sub-channel (131) is connected to the second sub-channel (132) to form the channel (13).

16. The heating assembly according to Claim 15, wherein a clamping structure is arranged between the support body (11) and the support seat (12), and comprises a clamping slot (1221) formed in one of the support body (11) and the support seat (12), and a clamping portion (1121) arranged on the other one of the support body (11) and the support seat (12).

17. The heating assembly according to Claim 1, wherein the heating unit (2) comprises a cylinder main body (21) and a tapered head (22) arranged at a first end (212) of the cylindrical main body (21).

18. An aerosol generation device, comprising the heating assembly according to any one of Claims 1-17.

Images