CN215958368U - End cover structure and electronic atomization device - Google Patents

Abstract

The utility model relates to the technical field of aerosol generating devices, and discloses an end cover structure and an electronic atomization device. This end cover structure includes: a first end cap for mating connection with a tubular heating element; the first sleeve is sleeved on the first end cover, and a gap is formed between the first sleeve and the first end cover; the first sleeve is used for clamping an electrode contact spring piece on the first end cover and enabling the electrode contact spring piece to be in conductive contact with the tubular heating element. By the mode, the electrode contact elastic sheet can be firstly installed on the first end cover, then the first sleeve is sleeved on the first end cover, and the electrode contact elastic sheet is clamped between the first sleeve and the first end cover. The structure can further facilitate the conductive connection between the electrode contact elastic sheet and the lead by welding or clamping and fixing, and then the electrode contact elastic sheet is clamped in the end cover structure.

Description

End cover structure and electronic atomization device

Technical Field

The utility model relates to the technical field of aerosol generating devices, in particular to an end cover structure and an electronic atomization device adopting the end cover structure.

Background

An electronic atomizer is an electronic product that atomizes an aerosolizable liquid, such as tobacco liquid, liquid medicine, or the like, or an aerosolizable substrate, such as a cigarette, into an aerosol for inhalation.

In the low-temperature baking type of the electronic atomization device, a base of the heating tube used therein is usually a component, and the base is used as an end cover structure of the heating tube, which needs to have a function of fixing the electrode contact spring. However, for such a base in the form of one part, it is necessary for the electrode contact spring to be arranged in a plug-in mounting; moreover, since the electrode contact elastic sheet needs to be welded, the electrode contact elastic sheet needs to be inserted into the base and then welded, so that the assembly operation is not easy; that is, the operation of connecting the electrode contact spring is inconvenient.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to provide an electronic atomization device, and provides a scheme that an end cover structure in the electronic atomization device can facilitate the connection operation of an electrode contact spring.

The embodiment of the utility model adopts the following technical scheme: an end cap structure, comprising: a first end cap for mating connection with a tubular heating element; the first sleeve is sleeved on the first end cover, and a gap is formed between the first sleeve and the first end cover; the first sleeve is used for clamping an electrode contact spring piece on the first end cover and enabling the electrode contact spring piece to be in conductive contact with the tubular heating element.

As a further improvement of the above technical solution, the first end cap includes an insertion end for being inserted into the tubular heating element.

As a further improvement of the above technical solution, the insertion end is provided with a first circumferential groove for receiving the first seal ring.

As a further improvement of the above technical solution, the first end cap includes a sleeve section, and the sleeve section has a first supporting surface extending radially outward, and the first supporting surface is used for supporting the end surface of the tubular heating element.

As a further improvement of the above technical solution, a gap between the first sleeve and the socket section is used for receiving a part of the electrode contact spring.

As a further improvement of the above technical solution, a first protrusion is disposed on an outer peripheral side of the sleeving section, and the first protrusion is used for being in backstop fit with a first groove in the electrode contact spring.

As a further improvement of the above technical solution, a first concave portion is provided on an outer peripheral side of the socket section, and the first concave portion is used for receiving a lead connecting portion of the electrode contact spring.

As a further improvement of the above technical solution, the first end cap further includes a base end, and the base end has a second supporting surface extending radially outward from the first end cap, and the second supporting surface is used for supporting the end surface of the first sleeve.

As a further improvement of the above technical solution, the base end further has a third support surface extending radially outward from the first end cap, and the third support surface is used for supporting an end surface of an insulating tube.

As a further improvement of the above technical solution, the base end is further provided with a second circumferential groove for receiving a second seal ring.

As a further improvement of the above technical solution, the base end is further provided with a lead groove, and the lead groove is recessed inward from the outer surface of the base end.

As a further improvement of the above technical solution, the first end cap is hollow.

The embodiment of the utility model also adopts the following technical scheme: an electronic atomization device, comprising: a solid substrate heating assembly comprising any of said end cap constructions; the solid substrate heating assembly further comprises the tubular heating element and the electrode contact spring, the tubular heating element having a heating chamber formed therein for receiving an aerosol-generating article; the solid substrate heating assembly for heating the aerosol-generating article and generating a first aerosol; the tubular heating element is connected with the end cover structure and the electrode contact spring piece, and the first end cover of the end cover structure is in gas communication with the tubular heating element.

As a further improvement of the above technical solution, the tubular heating element comprises a heating substrate and an infrared electrothermal coating; the heating substrate is hollow, and the infrared electric heating coating is coated on the outer side of the heating substrate.

As a further improvement of the above technical solution, the solid matrix heating assembly further comprises: the first electrode is arranged outside the heating substrate and is in contact with the infrared electric heating coating; the second electrode is arranged outside the heating substrate and is in contact with the infrared electric heating coating, and at least one part of the infrared electric heating coating is positioned between the first electrode and the second electrode. The first electrode is in conductive contact with one electrode contact elastic sheet, and the second electrode is in conductive contact with the other electrode contact elastic sheet.

As a further improvement of the above technical solution, the solid substrate heating assembly further comprises a heat insulation pipe, the heat insulation pipe is sleeved outside the tubular heating element and is connected with the first end cap.

As a further improvement of the above technical solution, the electronic atomization device further includes: a liquid atomization assembly for atomizing a liquid second substrate and generating a second aerosol. Wherein the liquid atomizing assembly and the solid substrate heating assembly are in fluid communication such that the second aerosol can enter the solid substrate heating assembly and mix with the first aerosol.

The embodiment of the utility model also adopts the following technical scheme: an electronic atomization device, comprising: a heating element for heating the aerosol-generating article and generating a first aerosol; a first member for sealing connection with the heating element; the electrode contact elastic sheet is arranged on the outer side of the first part; a second part disposed on an outer side of the first part, the electrode contact spring and the heating member being sandwiched between the second part and the first part while the electrode contact spring and the heating member are brought into electrically conductive contact.

As a further improvement of the above technical solution, the heating member includes a first electrode and a second electrode, the first electrode is in conductive contact with one of the electrode contact spring pieces, and the second electrode is in conductive contact with the other electrode contact spring piece.

As a further improvement of the above technical solution, the first member includes a sleeve section having a first supporting surface extending radially outward, and the first supporting surface is used for supporting the end surface of the heating element.

As a further improvement of the above technical solution, a first protrusion is disposed on an outer peripheral side of the sleeving section, and the first protrusion is used for being in backstop fit with a first groove in the electrode contact spring.

As a further improvement of the above technical solution, a first concave portion is provided on an outer peripheral side of the socket section, and the first concave portion is used for receiving a lead connecting portion of the electrode contact spring.

As a further improvement of the above technical solution, the first member is hollow, the heating member is a tubular heating member, and the first member and the tubular heating member are in gas communication.

As a further improvement of the above technical solution, the second member is a first sleeve.

The utility model has the beneficial effects that: in the end cap structure and the electronic atomization apparatus of this embodiment, the electrode contact elastic piece may be first mounted on the first end cap, and then the first sleeve is sleeved on the first end cap, so that the electrode contact elastic piece is clamped between the first sleeve and the first end cap. The structure can further facilitate the conductive connection between the electrode contact elastic sheet and the lead by welding or clamping and fixing, and then the electrode contact elastic sheet is clamped in the end cover structure.

Drawings

One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.

Fig. 1 is a schematic perspective exploded view of an end cap structure and an electrode contact spring according to an embodiment of the present invention;

FIG. 2 is an enlarged perspective view of a first end cap of the end cap construction of FIG. 1;

fig. 3 is an enlarged perspective view of one of the electrode contact spring pieces shown in fig. 1;

fig. 4 is a schematic perspective assembly diagram of an electronic atomization device according to an embodiment of the present invention;

FIG. 5 is another schematic perspective assembly view of the electronic atomizer shown in FIG. 4;

FIG. 6 is a schematic cross-sectional view of the electronic atomizer of FIG. 4;

FIG. 7 is an enlarged schematic view of part IV of FIG. 6;

FIG. 8 is an enlarged view of the section V of FIG. 6;

FIG. 9 is an enlarged schematic view of part VI of FIG. 6;

FIG. 10 is an exploded perspective view of the electronic atomizer shown in FIG. 4;

fig. 11 is a perspective view of the housing case of the electronic atomizer shown in fig. 10;

fig. 12 is a schematic plan view of a portion of the electronic atomizer shown in fig. 10 except for a housing case;

FIG. 13 is a schematic perspective assembly view of a liquid atomizing assembly according to an embodiment of the present invention;

FIG. 14 is another perspective assembled view of the liquid atomizing assembly of FIG. 13;

FIG. 15 is an exploded perspective view of the liquid atomizing assembly of FIG. 13;

FIG. 16 is another exploded perspective view of the liquid atomizing assembly of FIG. 13;

FIG. 17 is an exploded perspective view of a solid substrate heating assembly according to one embodiment of the present invention;

FIG. 18 is an enlarged perspective view of the tubular heating element of the solid substrate heating assembly of FIG. 17;

fig. 19 is another perspective view of the tubular heating element of fig. 18;

FIG. 20 is an exploded isometric view of a clamping structure of the solid substrate heating assembly of FIG. 17;

FIG. 21 is a perspective view of the upper end cap of the clamping arrangement of FIG. 20;

FIG. 22 is a cross-sectional schematic view of the clamping structure of the solid substrate heating assembly of FIG. 17.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, a schematic perspective exploded view of an end cap structure 15 and an electrode contact spring 16 according to an embodiment of the utility model is shown. The end cap arrangement 15 may include a first end cap 151 and a removable first sleeve 156. Wherein the first end cap 151 is adapted to be coupled to a tubular heating element; for example, the lower end of the tubular heating element may be supported by the top surface of the first end cap 151, and a sealing member may be disposed therebetween. The first removable sleeve 156 is fitted over the first end cap 151 and forms a gap with the first end cap 151. The first sleeve 156 serves to clamp the electrode contact dome 16 on the first end cap 151 and to bring the electrode contact dome 16 into electrically conductive contact with the tubular heating element.

In the end cap structure 15 of this embodiment, the electrode contact spring 16 may be first mounted on the first end cap 151, and then the first sleeve 156 is sleeved on the first end cap 151, so as to clamp the electrode contact spring 16 between the first sleeve 156 and the first end cap 151. This configuration further facilitates electrically connecting the electrode contact spring 16 and the lead 16a by welding or clamping, and then clamping the electrode contact spring 16 in the end cap structure 15.

In contrast, for a base adopting a form of one part, due to the limitation of the mold structure, the heating tube can only be sealed by the end face of the silicone gasket while the electrode contact elastic sheet is fixed, and in the actual assembling process, because too many parts are assembled together, for example, two contact elastic sheets, the silicone gasket and the base, and lead welding and the like are also provided, the actual sealing effect is easily influenced by the extrusion deformation of the silicone gasket.

In some embodiments, as shown in fig. 1-2, the first end cap 151 may include an insertion end 151a, the insertion end 151a being configured to be inserted into the tubular heating element. Further, the insertion end 151a is provided with a first circumferential groove 151b, the first circumferential groove 151b being adapted to receive the first sealing ring 17. Thus, when the lower end of the tubular heating element is inserted outside the insertion end 151a of the first cap 151, sealing is achieved by the first gasket 17 provided to prevent gas from leaking through the gap between the insertion end 151a and the tubular heating element. Moreover, through setting up the first circumferential groove 151b that can receive first sealing washer 17, can overcome the difficult problem that realizes of mould, the heated warehouses of tubulose heating member can be sealed through the circumference compression of first sealing washer 17 of silica gel for example completely like this for the assembly is more reliable, simple, stable, has also avoided because of the sealed problem that assembly error brought.

In some embodiments, as shown in fig. 1 and 2, the first end cap 151 can further include a socket segment 151c, the socket segment 151c being coupled to the insertion end 151 a; the socket section 151c is configured to have a cross-sectional dimension greater than the insertion end 151 a. The socket section 151c has a first supporting surface 151d extending radially outward from the insertion end 151a, and the first supporting surface 151d is used for supporting an end surface of the tubular heating element, that is, a lower end surface of the tubular heating element.

In some embodiments, the gap between the first sleeve 156 and the socket segment 151c is configured to receive a portion of the electrode contact spring 16, i.e., a lower end portion of the electrode contact spring 16; thus, the lower end portion of the electrode contact dome 16 can be held stationary, while the upper end portion of the electrode contact dome 16 can be used for electrically conductive contact with a tubular heating element.

In some embodiments, as shown in fig. 2 and fig. 3, a first protrusion 151e is disposed on an outer peripheral side of the socket segment 151c, and the first protrusion 151e is configured to be in stop fit with a first groove 162 in the electrode contact spring 16, so as to prevent the electrode contact spring 16 from axially separating from the socket segment 151 c. In addition, the outer circumferential side of the socket segment 151c may be provided with a first recess 151f, and the first recess 151f is used for receiving the lead connection portion 167 of the electrode contact spring 16. As shown in fig. 1, the lead connection portion 167 may be electrically connected to the lead 16a by soldering or clamping.

In some embodiments, as shown in conjunction with fig. 1 and 2, the first end cap 151 can further include a base end 151 g. The base end 151g has a second support surface 151h extending radially outward from the first end cap 151, and the second support surface 151h is configured to support an end surface of the first sleeve 156, i.e., a lower end surface of the first sleeve 156. In the embodiment with the insertion end 151a, the base end 151g is disposed opposite to the insertion end 151a, i.e., disposed at two ends of the socket segment 151c, and the socket segment 151c can be referred to as a middle segment.

In some embodiments, as shown in fig. 1 and 2 in combination, the base end 151g further has a third support surface 151i extending radially outward from the first end cap 151, the third support surface 151i being configured to support an end surface, i.e., a lower end surface, of the insulating tube 18 (see fig. 17).

In some embodiments, as shown in connection with fig. 1 and 2, the base end 151g is further provided with a second circumferential groove 151j, the second circumferential groove 151j being adapted to receive the second seal ring 17 a. For example, the lower end of the insulating tube 18 may be fitted over the base end 151g such that the third supporting surface 151i supports the end surface of the insulating tube 18. Thus, the second gasket 17a may function to seal the gap between the insulated pipe 18 and the base end 151g for better insulation.

In some embodiments, the base end 151g can also be provided with a lead groove 151k, the lead groove 151k being recessed inwardly from an outer surface of the base end 151 g. As shown in fig. 17 and fig. 1, the lead groove 151k is communicated with the first recess 151f, and is used for receiving the connection end of the lead 16a, and guiding the received lead 16a to bend and change the direction to the outside of the base end 151g, so as to be connected to the circuit board 41 of the power supply module 40.

In some embodiments, as shown in conjunction with fig. 1 and 2, the first end cap 151 is hollow and defines a second channel 152 (see fig. 8).

The end cap structure 15 of these embodiments may be used in a variety of electronic atomising devices where it is desirable to retain an aerosol-generating article, such as a cigarette, some of which are exemplified below.

Fig. 4 to fig. 6 are a schematic perspective view and a schematic cross-sectional view of an electronic atomizer 100 according to an embodiment of the present invention. The electronic atomizing device 100 may generally include a solid substrate heating assembly 10, a housing assembly 30, and a power supply assembly 40, and may further include a liquid atomizing assembly 20. The housing assembly 30 houses the solid substrate heating assembly 10, the liquid atomizing assembly 20, and the power supply assembly 40, the power supply assembly 40 including portions for providing electrical power to the solid substrate heating assembly 10 and the liquid atomizing assembly 20 as needed for operation, and further including portions that may control operation of the solid substrate heating assembly 10 and the liquid atomizing assembly 20.

The solid substrate heating assembly 10 of the electronic atomizing device 100 may include the aforementioned end cap structure 15. The solid substrate heating assembly 10 further comprises a tubular heating element 10a (see fig. 17) and the electrode contact spring 16, the tubular heating element 10a having a heating chamber 111 formed therein, the heating chamber 111 being for receiving an aerosol-generating article 201; the solid substrate heating assembly 10 is for heating the aerosol-generating article 201 and generating a first aerosol. The tubular heating element 10a is connected to the end cap structure 15 and the electrode contact spring 16, and the first end cap 151 of the end cap structure 15 is in gaseous communication with the tubular heating element 10 a. Since the heating chamber 111 is for housing the aerosol-generating article 201, it may also be referred to as a containment chamber.

The aerosol-generating article 201 may also be referred to herein as a solid first substrate, which may be in the form of a cigarette, for example, having an internal airflow path. The liquid atomizing assembly 20 is used to atomize a liquid second substrate 202, such as tobacco tar, liquid medicine, etc., and generate a second aerosol. Wherein the solid substrate heating assembly 10 is positioned above the liquid atomizing assembly 20. The liquid atomizing assembly 20 has a first outlet port 213a, and the solid substrate heating assembly 10 has a first inlet port 152 a; the first air outlet 213a is in direct fluid communication with the first air inlet 152a such that the second aerosol can enter and pass through the aerosol-generating article 201 and mix with the first aerosol; and, the first air outlet 213a is eccentrically disposed with respect to the heating compartment 111.

It is noted that when the aerosol-generating article 201 and the second substrate 202 are nebulized to form a product having a respiratory tract therapeutic effect, the electronic nebulizing device 100 may be referred to as a respiratory tract electronic nebulizer; when the aerosol-generating article 201 and the second substrate 202 are atomised to form a product similar to cigarette smoke, the electronic atomising device 100 may be referred to as an electronic smoking article.

In the electronic atomizing device 100 of this embodiment, by positioning the solid substrate heating assembly 10 above the liquid atomizing assembly 20, the first air outlet 213a is directly in fluid communication with the first air inlet 152a, and the first air outlet 213a is eccentrically disposed with respect to the heating chamber 111, so that the problem that the impurities such as soot condensate and soot generated in the air flow channel of the solid substrate heating assembly 10 directly fall into the air flow channel of the liquid atomizing assembly 20 can be avoided. Thus, the electronic atomization device 100 of this embodiment can provide a better smoking experience.

In some embodiments, as shown in connection with fig. 6, the liquid atomization assembly 20 and the heater cartridge 111 can also be in fluid communication such that a second aerosol can enter the heater cartridge 111; accordingly, when an aerosol-generating article 201, such as a cigarette, is placed within the heating chamber 111, a second aerosol can enter the interior of the aerosol-generating article 201 as the user draws. Furthermore, when the outer peripheral sides of the aerosol-generating article 201, e.g. a cigarette, and the heating cartridge 111 have gaps or flow channels, the second aerosol can also enter such gaps or flow channels.

In some embodiments, the solid substrate heating assembly 10 may be a central heating type structure, for example it may comprise a heat-generating body for insertion into the aerosol-generating article 201 and for generating heat for heating the aerosol-generating article 201, and further may be radiatively heated by means of infrared light. At this point, the space defined within the electronic atomization device 100 for housing the aerosol-generating article 201 may be defined as a heated chamber. The heating body can be in the form of a heating sheet or a heating needle.

In some embodiments, as shown in connection with fig. 6, 8, 17-19, the solid substrate heating assembly 10 is in the form of circumferential heating. For example, the solid substrate heating assembly 10 may include a tubular heating element 10a, and the tubular heating element 10a may include a heating base 11 and the first end cap 151. The heating base 11 may be hollow, and the heating chamber 111 is formed inside the heating base. The first end cap 151 defines a second channel 152, and the second channel 152 has the first air inlet 152 a. The lower end of the heated substrate 11 is connected to the first end cap 151, and the first end cap 151 and the heated substrate 11 are in fluid communication. The tubular heating element 10a may bake heat the aerosol-generating article 201 by electromagnetic heating, resistive heating, infrared heating, or the like.

In a further embodiment, as shown in fig. 6 and 8, projected along the up-down direction a1, a first orthographic projection of the inner side surface of second channel 152 may overlap with a second orthographic projection of first air outlet 213a by at least 50%, such as by 60%, 70%, 80%, 90%, 100%, etc. It will be readily appreciated that the higher the degree of overlap, i.e., the more interior side of the second channel 152 covers the first air outlet 213a, the better the prevention of impurities from falling directly into the first air flow channel 213 of the liquid atomization assembly 20.

In a further embodiment, as shown in fig. 6 and 8 in combination, the cross-sectional area of the second channel 152 gradually decreases in a direction away from the liquid atomization assembly 20, and the first air outlet 213a is disposed near the side of the first air inlet 152 a.

In a further embodiment, as shown in conjunction with fig. 6, 8 and 2, the first end cap 151 further defines a mounting slot 153, the mounting slot 153 has the airflow sensor 44 disposed therein, and the airflow sensor 44 is in airflow communication with the second channel 152 through a communication slot 154. A sealing member may be further disposed between the first cover 151 and the air flow sensor 44 to prevent air leakage through the mounting groove 153. The airflow sensor 44 may be a microphone. In addition, the communication groove 154 and the first air outlet 213a may be disposed adjacent to each other.

In some embodiments, as shown in connection with fig. 17-19, the tubular heating element 10a is configured to bake heat the aerosol-generating article 201 by infrared heating. The solid substrate heating assembly 10 may further include an infrared electrocaloric coating 12, a first electrode 13, and a second electrode 13 a. The infrared electrothermal coating 12 is coated on the outer side of the heating substrate 11. The first electrode 13 is arranged outside the heating substrate 11 and is in contact with the infrared electrothermal coating 12, the second electrode 13a is arranged outside the heating substrate 11 and is in contact with the infrared electrothermal coating 12, and at least one part of the infrared electrothermal coating 12 is positioned between the first electrode 13 and the second electrode 13 a. Wherein the first electrode 13 and the second electrode 13a are adapted to be electrically connected to the power supply assembly 40, such that at least a portion of the infrared electro-thermal coating 12 receives heat generated by the electrical power to generate infrared radiation for radiatively heating the solid aerosol-generating article 201.

In the electronic atomization device 100 of the above embodiment, since the infrared light generated by the solid substrate heating assembly 10 during operation has strong penetrability, the infrared light can penetrate through the aerosol-generating article 201 at the periphery into the interior, so that the aerosol-generating article 201 can be heated more uniformly. Furthermore, it will be readily appreciated that the second aerosol also has a higher temperature and therefore is able to act as a heat bake to the aerosol-generating article 201 as it passes inside the aerosol-generating article 201.

In some embodiments, the infrared electrothermal coating 12 is used for receiving electric power to generate heat, and then generating infrared rays with certain wavelength, such as far infrared rays with a wavelength of 8 μm to 15 μm. When the wavelength of the infrared light matches the absorption wavelength of the aerosol-generating article 201, the energy of the infrared light is readily absorbed by the aerosol-generating article 201. In this example, the wavelength of the infrared ray is not limited, and may be an infrared ray of 0.75 to 1000 μm, and further may be a far infrared ray of 1.5 to 400 μm.

The infrared electric heating coating 12 can be formed by fully and uniformly stirring far infrared electric heating ink, ceramic powder and an inorganic adhesive, then coating, drying and curing for a certain time, and the thickness of the infrared electric heating coating can be 30-50 mu m; certainly, the infrared electric heating coating can also be formed by mixing and stirring tin tetrachloride, tin oxide, antimony trichloride, titanium tetrachloride and anhydrous copper sulfate according to a certain proportion and then coating; or one of a silicon carbide ceramic layer, a carbon fiber composite layer, a zirconium-titanium oxide ceramic layer, a zirconium-titanium nitride ceramic layer, a zirconium-titanium boride ceramic layer, a zirconium-titanium carbide ceramic layer, an iron-based oxide ceramic layer, an iron-based nitride ceramic layer, an iron-based boride ceramic layer, an iron-based carbide ceramic layer, a rare earth oxide ceramic layer, a rare earth nitride ceramic layer, a rare earth boride ceramic layer, a rare earth carbide ceramic layer, a nickel-cobalt oxide ceramic layer, a nickel-cobalt nitride ceramic layer, a nickel-cobalt boride ceramic layer, a nickel-cobalt carbide ceramic layer or a high-silicon molecular sieve ceramic layer; the infrared electrothermal coating can also be other existing material coatings.

As shown in fig. 6, the heat insulating pipe 18 is disposed in the housing case 31 of the housing assembly 30, is disposed outside the tubular heating element 10a, and is connected to the first end cap 151. The insulated duct 18 may prevent a significant amount of heat from being transferred to the housing assembly 30, causing the user to feel hot. The insulating tube 18 comprises an insulating material which may be an insulating gel, aerogel blanket, asbestos, aluminum silicate, calcium silicate, diatomaceous earth, zirconia, or the like. The heat insulation pipe may be a vacuum heat insulation pipe. An infrared reflective coating may also be formed in the heat insulation pipe 18 to reflect infrared rays emitted from the infrared electrothermal coating on the heating substrate 11 back to the infrared electrothermal coating 12, thereby improving heating efficiency.

In some embodiments, as shown in conjunction with fig. 6, 9, and 13-16, the liquid atomization assembly 20 includes a reservoir housing 21, a liquid directing element 22, and a heating element 23. The liquid reservoir 21 defines a liquid receiving space 211 for receiving the second substrate 202 in a liquid state. The liquid guiding element 22 is in fluid communication with the liquid receiving space 211 for absorbing the second substrate 202 from the liquid receiving space 211. The heating element 23 is disposed adjacent to the wicking element 22 and is configured to heat at least a portion of the second substrate 202 absorbed by the wicking element 22 when energized to generate a second aerosol. It is noted that the proximity of heating element 23 to fluid-conducting element 22 may include both the case where heating element 23 is in direct contact with fluid-conducting element 22 and the case where heating element 23 is in indirect contact with fluid-conducting element 22; the fluid communication between the liquid guide member 22 and the liquid accommodation space 211 may be direct communication or indirect communication.

The wicking element 22 may be made of a material having capillary channels or pores, such as a hard or rigid capillary structure of cellucotton, a porous ceramic body, a glass fiber rope, a porous glass ceramic, a porous glass, or the like. The liquid guiding member 22 is in fluid communication with the liquid receiving space 211 to suck the liquid second substrate 202 delivered from the liquid receiving space 211 and to deliver the second substrate 202 to the vicinity of the heating member 23.

In a further embodiment, as shown in fig. 9 and 16, the liquid guiding member 22 includes an atomizing surface 221 and a liquid absorbing surface 222, and the liquid absorbing surface 222 is in fluid communication with the liquid accommodating space 211. The heating element 23 is disposed on the atomization surface 221, and is configured to heat at least a portion of the second substrate 202 absorbed by the liquid guide element 22 when the electric current is applied to generate aerosol, and the aerosol is released after escaping from the atomization surface 221. For example, the heating element 23 may be formed on the atomizing surface 221 of the liquid guiding element 22 by mounting, printing, depositing, or the like. The heating element 23 may be made of stainless steel, nichrome, ferrochromium alloy, titanium metal, etc. in some embodiments. As shown in fig. 16, the heating element 23 is a conductive track patterned in a serpentine, meander, etc., and may include conductive terminals at both ends; the conductive terminals may be in the form of pads, which may have a square, circular, oval, etc. shape. The heating element 23 may also be a heating net, a heating sheet, or the like. The atomization surface 221 of the liquid guiding element 22 can be opposite to the liquid suction surface 222; alternatively, the side surface of the liquid guide member 22 may be a liquid suction surface.

In other embodiments, the liquid guiding element 22 may be an oil absorbent cotton, and the heating element 23 may be a heating wire, so that the heating wire can be energized to generate heat according to the heating principle of the resistance wire. The liquid accommodating space 211 is used for accommodating tobacco tar; the oil absorption cotton is used for absorbing the smoke oil in the liquid accommodating space 211 and providing the smoke oil for the heating wire; the heating wire is attached to the oil absorption cotton and used for heating the tobacco tar on the oil absorption cotton to generate corresponding tobacco tar smoke.

In still other embodiments, the liquid atomizing assembly 20 may be ultrasonically atomized and associated structures, or molecularly resonant atomized and associated structures; this is not described in detail herein.

In some embodiments, as shown in conjunction with fig. 6, 9, and 13-16, the reservoir 21 further defines a first mounting space 212 and a first air flow channel 213, and the liquid atomization assembly 20 further includes a first mounting member 24. The second aerosol generated by the liquid atomization assembly 20 is used to deliver the aerosol to the solid substrate heating assembly 10 via the first airflow channel 213. The first mounting part 24 is disposed in the first mounting space 212, and the liquid guide member 22 is mounted on the first mounting part 24. The liquid receiving space 211 is in fluid communication with the liquid guiding member 22 through the liquid passage 241 of the first mounting part 24. The second aerosol generated by the liquid atomization assembly 20 is used to deliver the aerosol to the solid substrate heating assembly 10 via the first airflow channel 213. In addition, a second sealing member 26 may be disposed between the first mounting member 24 and the liquid storage case 21 to seal a gap therebetween. A third sealing member 26a may be disposed between the liquid guiding element 22 and the first mounting part 24, and the third sealing member 26a may be located between the liquid guiding element 22 and the bracket side wall of the first mounting part 24, for sealing and isolating the atomizing surface 221 from the liquid absorbing surface 222, that is, the liquid provided by the liquid accommodating space 211 can only enter the liquid guiding element 22 through the liquid absorbing surface 222 and then be delivered to the atomizing surface 221. The third seal 26a may be generally cup-shaped such that the fluid-conducting element 22 may be received within a recess of the cup-shaped third seal 26 a.

Further, the first air flow channel 213 may be arranged in parallel with the heating chamber 111 and in direct communication with the first air inlet 152a (see fig. 8) of the solid substrate heating assembly 10. Since the first air flow channel 213 is in direct communication with the first air inlet 152a of the solid substrate heating assembly 10, the atomised second aerosol can enter the aerosol-generating article 201 as air to the solid substrate heating assembly 10, thereby producing a mixed flavour smoke. For example, the first air flow channel 213 and the heating chamber 111 can be both vertically disposed, and the first air flow channel 213 is disposed eccentrically to the heating chamber 111. In other embodiments, the first air flow channel 213 may not be limited to be parallel to the heating chamber 111, but may have various shapes such as bending, etc.

In a further embodiment, as shown in fig. 9, 15 and 16, a check valve 246 is connected to the first mounting member 24, and the check valve 246 is used for introducing air into the liquid accommodating space 211. The check valve 246 is adapted to open under the influence of a pressure differential; accordingly, in the assembled electronic atomizing device 100, the check valve 246 allows air to be introduced into the liquid accommodating space 211, so that a large negative pressure caused by insufficient liquid in the liquid accommodating space 211 is prevented, and the liquid is smoothly discharged from the liquid accommodating space 211 to the liquid guide member 22. The check valve 246 may be, for example, a duckbill valve or the like that allows only air to enter the liquid housing space 211 from the outside.

In some embodiments, as shown in fig. 6, 13 and 15, the liquid storage shell 21 may be further provided with a slag containing cavity 214 on the side facing the solid substrate heating assembly 10. The slag receiving chamber 214 may be mounted on the liquid storage case 21 by a separate member, or the slag receiving chamber 214 may be directly formed by the liquid storage case 21. The slag receiving cavity 214 is in direct fluid communication with the first air inlet 152 a. By providing the slag accommodating chamber 214, the slag, condensate, and the like generated thereabove can fall into the slag accommodating chamber 214, and thus be prevented from falling into the first air flow passage 213 of the liquid storage case 21. Further, by providing the liquid atomization assembly 20 as a replaceable unit, the collected slag, condensate, etc. within the slag-receiving chamber 214 may be removed as the liquid atomization assembly 20 is replaced; the slag receiving cavity 214 of the replaced liquid atomization assembly 20 may continue to be used to collect slag, condensate, and the like. In addition, as shown in fig. 8, 13 and 15, the first air outlet 213a of the first air flow channel 213 is located at one side of the smoke residue containing chamber 214; further, the first outlet port 213a may be flush with, i.e., in the same plane as, the opening of the clinker accommodating chamber 214.

In some embodiments, as shown in conjunction with fig. 6 and 8, the first gas flow channel 213 of the liquid atomizing assembly 20 has the first gas outlet 213a, and the first end cap 151 of the solid substrate heating assembly 10 has the first gas inlet 152 a; the first air outlet 213a is in direct fluid communication with the first air inlet 152a such that the second aerosol can enter the solid substrate heating assembly 10 and mix with the first aerosol.

In some embodiments, as shown in conjunction with fig. 6-8 and 17, the solid substrate heating assembly 10 may further include an upper end cap 141, the upper end cap 141 defining a first channel 142. The two ends of the heating substrate 11 are respectively connected with the upper end cap 141 and the first end cap 151 in a sealing manner. For example, the upper end of the heating base 11 may be inserted into the lower end of the upper cap 141, and the first sealing member 19 is disposed therebetween; the lower end of the heating base 11 is inserted outside the upper end of the first cap 151, and a first gasket 17 is disposed therebetween. The first end cap 151, the heating substrate 11 and the upper end cap 141 are sequentially communicated; that is, the gas may flow through the second passage 152, the heating chamber 111, and the first passage 142 in sequence.

In a further embodiment, as shown in conjunction with fig. 6, 8 and 2, the second channel 152 also has a second air outlet 152 b. The third orthographic projection of the second air outlet 152b and the fourth orthographic projection of the tobacco residue containing cavity 214 overlap by at least 50%, for example, 60%, 70%, 80%, 90%, 100% or the like, when projected along the up-down direction a 1. It will be readily appreciated that the greater this degree of overlap means that the more the slag receiving chamber 214 corresponds to the second air outlet 152b, so that the better the collection of impurities such as soot and ash that fall downwardly through the second air outlet 152 b.

Further, as shown in connection with fig. 6 and 8, the solid substrate heating assembly 10 may have a transition section located at least between the first inlet 152a and the lower end of the heating chamber 111, which defines the second passageway 152. The second channel 152 is located at least between the first air outlet 213a and the heating chamber 111, and is used for conveying the second aerosol output through the first air outlet 213a to the heating chamber 111. The second channel 152 has a smooth transition inner surface; the heating chamber 111, the second channel 152 and the first air flow channel 213 are directly connected from top to bottom. By providing the second channel 152 with a smooth transition inner surface, for example with a smooth transition from the first air inlet 152a to the heating chamber 111, the second aerosol output through the first air flow channel 213 can be smoothly transported within the second channel 152 and thus into the aerosol-generating article 201. In addition, the length of the second channel 152 in the axial direction may be greater than the diameter of the heating chamber 111. For example, the length of the second channel 152 in the axial direction may be between 1.1 and 2 times the diameter of the heating chamber 111.

In a further embodiment, as shown in connection with fig. 18 and 19, the heated substrate 11 includes a proximal end 112 and a distal end 113 and a first surface 114 extending between the proximal end 112 and the distal end 113, the first surface 114 including a coated region 115 and a non-coated region 116 disposed proximate the distal end 113. The infrared electrothermal coating 12 is formed within the coating region 115. The first electrode 13 and the second electrode 13a each include a coupling electrode 131 disposed within the uncoated region 116 and a strip electrode 132 extending from the coupling electrode 131 toward the proximal end 112. The strip-shaped electrodes 132 of the first electrode 13 and the strip-shaped electrodes 132 of the second electrode 13a are both located at least partially within the coating region 115 to form an electrical connection with the infrared electrothermal coating 12. The non-coated region 116 is disposed proximate the distal end 113 of the heated substrate 11. Typically, the length of the uncoated region 116 in the axial direction may be in the range of 0.5mm to 7mm, for example, 0.5mm, 0.9mm, 1mm, 1.5mm, 2mm, 3mm, 3.5mm, 4mm, 5mm, 7mm, and the like. As shown in fig. 18, the proximal end 112 may be an end of the heating substrate 11 near the upper end cap 141, that is, an upper end of the heating substrate 11; the distal end 113 is the opposite end, i.e., the lower end of the heating substrate 11. In other cases, the proximal end 112 may also be defined as the lower end of the heated substrate 11; the distal end 113 is the upper end of the heated substrate 11.

In addition, the width of the stripe-shaped electrode 132 may be in the range of 0.5 to 7mm, for example, 0.5mm, 0.8mm, 1mm, 1.5mm, 2mm, 3mm, 3.5mm, 4mm, 6mm, 7mm, etc. Further, the strip-shaped electrodes 132 may be made to have a wide width, for example, a width of 1.5mm or more; through setting up the width of broad, can reduce the resistance of tubulose heating member 10a, can increase the ability that the electrode can bear the heavy current, avoid the risk that the electrode line burns out in the heating process, still can reduce the resistance of electrode line, make electric current distribution more even on the axis direction, it is more even to reach the thermal field that generates heat. It is noted that if the width of the strip-shaped electrodes 132 is too wide, it is liable to cause a reduction in the heat emitting surface, i.e., a reduction in the heating area, so that the infrared radiation may be reduced. Therefore, a preferable width range may be 2 to 4mm, which can reduce the resistance value of the tubular heating element 10a without reducing the heating area.

The first electrode 13 and the second electrode 13a are at least partially electrically connected with the infrared electrothermal coating 12, so that current can flow from one electrode to the other electrode through the infrared electrothermal coating 12. The first electrode 13 and the second electrode 13a are opposite in polarity, for example: the first electrode 13 is a positive electrode, and the second electrode 13a is a negative electrode; alternatively, the first electrode 13 is a negative electrode and the second electrode 13a is a positive electrode. In some examples, the first electrode 13 and the second electrode 13a are conductive coatings, the conductive coatings may be metal coatings or conductive tapes, and the like, and the metal coatings may include silver, gold, palladium, platinum, copper, nickel, molybdenum, tungsten, niobium, or metal alloy materials thereof. In one example, the first electrode 13 and the second electrode 13a are symmetrically disposed along a central axis of the heating substrate 11.

In other embodiments, the first electrode 13 and the second electrode 13a may be conductive coatings respectively coated on the upper and lower sides of the heating substrate 11, and the infrared electrothermal coating 12 is located between the two conductive coatings. The conductive coating can be made of silver powder coating, and the conductive coating is in contact with the infrared electrothermal coating 12.

The heating substrate 11 may have a cylindrical shape, a prismatic shape, or another cylindrical shape. When the heating substrate 11 is cylindrical, the heating chamber 111 is a cylindrical hole penetrating through the middle of the heating substrate 11, and the inner diameter of the hole can be slightly larger than the outer diameter of the aerosol-forming product, so that the aerosol-forming product can be conveniently placed in the cavity to heat the aerosol-forming product. The heating substrate 11 may be made of a transparent material such as quartz glass, ceramic, or mica, which is resistant to high temperature, or may be made of other materials having a high external light transmittance, for example: the high temperature resistant material having an infrared transmittance of 95% or more is not particularly limited.

It will be readily appreciated that by coating the infrared electro-thermal coating 12 on the outside of the heating substrate 11, the energised infrared electro-thermal coating 12 emits infrared light which penetrates the heating substrate 11 to radiatively heat an aerosol generating article 201, such as a smoking substance, located within the heating substrate 11, since infrared light has a relatively strong penetration, it can penetrate the surrounding smoking substance into the interior so that the heating of the smoking substance is relatively uniform.

In addition, as shown in fig. 6, 12 and 17, the solid substrate heating assembly 10 may further include a Temperature sensor 10b, such as an NTC (Negative Temperature Coefficient) Temperature sensor, for detecting a real-time Temperature of the heating substrate 11 and transmitting the detected real-time Temperature to the circuit board 41, wherein the circuit board 41 may adjust the magnitude of the current flowing through the infrared electrothermal coating 12 according to the real-time Temperature. The temperature sensor 10b may be connected to the circuit board 41 through a wire 16 b.

Additionally, as shown in conjunction with fig. 9, 15, and 16, the liquid atomization assembly 20 can also include a second mounting member 27. The second mounting member 27 is disposed in the first mounting space 212 and can be snap-fitted to the reservoir housing 21 to support and fix the first mounting member 24 and the liquid guiding member 22.

In some embodiments, as shown in fig. 6 and fig. 10 to 12, the housing assembly 30 of the electronic atomization device 100 may include a housing case 31, a detachable bottom cover 32, a sliding cover structure 33, and the like. The sliding cover structure 33 can be installed on the top of the housing case 31 to open or close the cigarette insertion opening of the electronic atomization device 100, i.e. the top socket 311, by sliding back and forth. The power supply assembly 40 of the electronic atomization device 100 can include a circuit board 41, a battery 42 and the like. The solid substrate heating assembly 10, the liquid atomizing assembly 20, the circuit board 41 and the battery 42 may be disposed within the receiving housing 31. The solid substrate heating assembly 10 is positioned above the liquid atomizing assembly 20, and the circuit board 41 and battery 42 are positioned on one side of the solid substrate heating assembly 10 and the liquid atomizing assembly 20. For example, the circuit board 41 and battery 42 may each be vertically positioned and located to the right of the entirety formed by the solid substrate heating assembly 10 and the liquid atomizing assembly 20; the circuit board 41 may be located between the entirety of the solid substrate heating assembly 10 and the liquid atomizing assembly 20 and the battery 42, and may be perpendicular to the plane of the solid substrate heating assembly 10 and the liquid atomizing assembly 20 and the battery 42. With such an arrangement, the electronic atomization device 100 has a compact structure and a reasonable layout, and the whole device can be substantially in a flat rectangular parallelepiped shape.

In a further embodiment, as shown in connection with fig. 6, 10 and 11, the receptacle housing 31 defines a top receptacle 311 and a bottom receptacle 312. The top socket 311 is in communication with the heating chamber 111 of the solid substrate heating assembly 10 for inserting a solid aerosol-generating article 201 into the heating chamber 111 via the top socket 311. The liquid atomization assembly 20 is configured to be placed in the containment housing 31 through the bottom socket 312. So arranged, insertion of the solid aerosol-generating article 201 and the liquid atomization assembly 20 in two different directions, one above the other, may be facilitated.

In addition, as shown in fig. 10 and 11, the detachable bottom cover 32 can be attached to the bottom of the accommodating case 31 and hold the liquid atomizing assembly 20 in the accommodating case 31. For example, one end of the detachable bottom cover 32 may have a snap structure 323 such as a snap, and the other end may have a magnetic member 324; therefore, the detachable bottom cover 32 can be mounted on the bottom of the housing case 31 by engaging the engaging structure 323 at one end of the detachable bottom cover 32 with, for example, a slot of the housing case 31 and magnetically fixing the magnetic member 324 at the other end with the magnetic member mounted on the housing case 31. In this manner, the liquid atomization assembly 20, in the form of an atomized cartridge, is accessible by opening and closing the bottom removable cover 32; the aerosol-generating article 201 such as a cigarette is taken from the top of the electronic atomization device 100, and the two are not interfered with each other, so that the electronic atomization device 100 is simple and convenient in layout and more suitable for man-machine operation.

In a further embodiment, as shown in fig. 13 and 16, the liquid atomizing assembly 20 further includes a first electrode needle 25, and the first electrode needle 25 is electrically connected to the heating element 23 of the liquid atomizing assembly 20. The number of the first electrode needles 25 may be two, so as to be connected to two electrodes of the heating element 23, respectively. As shown in fig. 10, the battery 42 may also be electrically connected to the second electrode thimble 43, for example, the second electrode thimble 43 is mounted on the circuit board 41 and connected to the battery 42 through the circuit board 41; the number of the second electrode pins 43 may be two, so as to be connected to two electrodes of the battery 42, respectively. The detachable bottom cover 32 is provided with a conductive conversion element 321, and the conductive conversion element 321 may be two conductive strips fixed on the upper side of the detachable bottom cover 32. Wherein the conductive conversion member 321 is in conductive contact with the first electrode needle 25 and the second electrode needle 43 when the detachable bottom cover 32 holds the liquid atomizing assembly 20 in the accommodating case 31. The first electrode pin 25 and the second electrode pin 43 may be elastic pins to enhance the contact effect with the conductive adaptor 321.

In a further embodiment, as shown in fig. 5 and 10, the detachable bottom cover 32 is provided with one or more air inlet holes 322, and the number of the air inlet holes 322 may be one or more. When the detachable bottom cover 32 holds the liquid atomization assembly 20 in the containing shell 31, the air inlet holes 322 are in gas communication with the liquid atomization assembly 20. That is, by providing the air inlet hole 322, the external air can enter the inside of the electronic atomization device 100 through the air inlet hole 322 and flow through the liquid atomization assembly 20, the solid substrate heating assembly 10 and the top socket 311 in sequence. Since the solid substrate heating assembly 10 and the liquid atomizing assembly 20 share one air inlet 322, it is ensured that the liquid atomized smoke can enter most of the aerosol-generating article 201, such as a cigarette, heated by the solid substrate heating assembly 10, which can improve TPM (Total particulate matter) and smoking taste of the mixed smoke.

In some embodiments, as shown in conjunction with fig. 17 and 20-22, the solid substrate heating assembly 10 may further include a clamping member 146, and the upper end cap 141 and the clamping member 146 form a clamping structure 14. Wherein the clamping member 146 comprises an elastic body 147 and at least one abutment 148 connected to the elastic body 147; the resilient body 147 may be fitted over the outside of the upper end cap 141 and each abutment 148 may be provided on the inside of the resilient body 147 which may pass through a side wall of the upper end cap 141 and serve to abut an aerosol-generating article 201, for example in the form of a cigarette, within the first channel 142. For example, the number of the abutting portions 148 may be one or more, and may be three as shown in fig. 20, and the three abutting portions 148 may be evenly distributed in the circumferential direction along the elastic body 147.

In the electronic atomization device 100 of this embodiment, the clamping member 146 is assembled with the upper end cap 141 by sleeving the elastic main body 147 on the outer side of the upper end cap 141 and passing the abutting portion 148 through the side wall of the upper end cap 141, so that the clamping of the aerosol-generating article 201 is realized by a two-piece assembly structure; moreover, when aerosol-generating articles 201 of different stiffness are inserted, the elastic force of the abutment 148 adjusts with the outward deformation of the outer elastic body 147, thereby avoiding deformation of the aerosol-generating article 201 due to excessive clamping force of the abutment 148.

In some embodiments, as shown in fig. 17 and fig. 20 to 22, at least one bracket through hole 143 is formed on a sidewall of the upper end cap 141, and each bracket through hole 143 is used for passing through one abutting portion 148. Each holder through hole 143 may be provided to guide the abutment 148 therein to move in a radial direction of the first channel 142. The number and positions of the holder through holes 143 correspond to the abutment portions 148. Further, the holder through hole 143 may extend in a circumferential direction of the upper cover 141. Each bracket through-hole 143 may have opposite upper and lower surfaces 143a and 143 b. The upper and lower surfaces 143a and 143b may be parallel to each other, or may gradually approach each other as approaching the inside of the upper cap 141. The bracket through hole 143 and the abutment 148 may be loosely fitted to allow the abutment 148 to move freely in a radial direction.

In some embodiments, as shown in fig. 21 to 22, the inner side of the upper end cap 141 includes a first inner surface portion 144a and a second inner surface portion 144b, and the first inner surface portion 144a and the second inner surface portion 144b are connected in the circumferential direction of the upper end cap 141. The first inner surface portion 144a may be located within a first cylinder having a first diameter and the second inner surface portion 144b may be located within a second cylinder having a second diameter, the first diameter being greater than the second diameter. The end of the abutment 148 projects beyond the first inner surface portion 144a and projects radially inwardly of the first channel 142 beyond the second inner surface portion 144 b. Thus, the ends of the abutment 148 can be used to grip the aerosol-generating article 201 and facilitate insertion and extraction of the aerosol-generating article 201 into and from the gripping structure 14.

In another embodiment, as shown in fig. 21 to 22 in combination, the inner side of the upper end cap 141 may include a second inner surface portion 144b, and the second inner surface portion 144b is located in a second cylindrical surface having a second diameter, which is the minimum diameter of the inner side of the upper end cap 141. The tip of the abutment portion 148 protrudes beyond the second inner surface portion 144b in the free state. The resilient body 147 is resiliently deformable by movement of the abutment 148 on insertion of an aerosol-generating article 201, such as a cigarette, and when resiliently deformed allows the end of the abutment 148 to move radially outwardly of the first channel 142 into at least alignment with the second inner surface portion 144 b. Thus, the abutment 148 may have a greater range of radial movement.

In some embodiments, as shown in fig. 20 and 22, the outer side of the upper cover 141 is provided with a bracket groove 145 extending along the circumferential direction of the upper cover 141. The bracket recess 145 receives the elastic body 147 and allows the elastic body 147 to move in a direction away from the first passage 142. In this way, while the holder groove 145 receives the elastic body 147, the elastic body 147 is prevented from moving in the axial direction of the upper end cap 141, which is equivalent to mounting the elastic body 147 on the upper end cap 141 through the holder groove 145.

In some embodiments, as shown in connection with fig. 20-22, the upper end cap 141 is hollow cylindrical and defines a first passage 142. Additionally, the resilient body 147 may be resilient annular, such as an O-ring. Further, the abutment 148 may be an elastic material or a stiff material, for example the elastic material may be an elastic rubber, in particular silicone rubber, so as to grip the aerosol-generating article 201, for example a cigarette, by frictional forces generated by the flexible deformation of the abutment 148; the rigid material may be metal or rigid plastic. Furthermore, the abutment 148 may extend in the circumferential direction of the elastic body 147, i.e. the abutment 148 may have a flat shape, in order to increase the contact area and friction to the aerosol-generating article 201.

In some embodiments, as shown in conjunction with fig. 20, the resilient body 147 and the abutment 148 can be an integrally formed structure. For example, the holding member 146 may be formed by injection molding a silicone material at one time. In addition, when the abutment portion 148 is made of a hard material, the clamping member 146 may be manufactured by a process such as overmolding or insert molding. The integral structure can simplify the manufacturing process, and the manufactured clamping component 146 has a better clamping effect.

In some embodiments, as shown in conjunction with fig. 17 and 20, the clamping member 146 is disposed adjacent to the heating substrate 11 of the tubular heating element 10 a. That is, the gripping member 146 may be disposed at a lower position of the upper cap 141, thereby enabling a more efficient gripping of the aerosol-generating article 201.

In some embodiments, as shown in fig. 3, the electrode contact spring 16 may include a spring body 161 and a lead connection portion 167. The spring plate main body 161 is used for electrically contacting with the electrode; for example, the dome body 161 of one electrode contact dome 16 may be in electrically conductive contact with the first electrode 13 on the heating substrate 11 of the solid substrate heating assembly 10, and the dome body 161 of the other electrode contact dome 16 may be in electrically conductive contact with the second electrode 13a on the heating substrate 11 of the solid substrate heating assembly 10. The lead connecting portion 167 is connected to the spring main body 161, and the lead connecting portion 167 is configured to clamp a lead 16a by deformation.

In the electronic atomizer 100 of this embodiment, by arranging the lead connecting portion 167 to be deformable to clamp the lead 16a, one end of the lead 16a may be inserted into the groove of the lead connecting portion 167 first during the assembly process, and then the lead connecting portion 167 may be pressed down by a jig to be deformed to fix the lead 16 a. The assembling mode can be completely processed outside a production line, and can be completely used as a part during assembling and disassembling, so that a complicated welding process is avoided.

In some embodiments, as shown in fig. 3, the clip body 161 may define two first grooves 162 and have a first connecting bar 163 located between the two first grooves 162, and the lead connection 167 is connected to the first connecting bar 163. For example, the first recess 162 may be punched to form two portions of the lead connecting portion 167, and then the two portions are bent to form the lead connecting portion 167 as shown in fig. 3.

In some embodiments, as shown in fig. 3, the lead connection portion 167 includes a first bending portion 168 and a second bending portion 168a, and the first bending portion 168 and the second bending portion 168a enclose a lead receiving space.

Further, the end of the first bent portion 168 and the end of the second bent portion 168a may be disposed to face each other. Therefore, when fixedly connected to the lead 16a, the first bent portion 168 and the second bent portion 168a are crushed, and the lead 16a is clamped in the lead housing space and electrically contacted to the lead connecting portion 167.

Alternatively, the end of the first bent portion 168 and the end of the second bent portion 168a may be disposed close to each other, and both the end of the first bent portion 168 and the end of the second bent portion 168a face the lead wire receiving space. Therefore, when the lead 16a is fixedly connected, the first bending portion 168 and the second bending portion 168a can be pressed down by a jig to be deformed, so that the end of the first bending portion 168 and the end of the second bending portion 168a are forced to be pressed on the lead 16a, and the lead 16a can be more firmly fixed.

In some embodiments, as shown in fig. 3, the spring body 161 is provided with a flexible cantilever 164 at an end away from the lead connection 167, and a conductive contact 164a is formed near an end of the flexible cantilever 164. The number of the elastic cantilever 164 may be one or more, and may be formed by punching. The conductive contact 164a is for making conductive contact with the electrode. In addition, the conductive contact 164a and the lead connection portion 167 are located on the same side of the spring main body 161. Further, the spring main body 161 may be curved as a whole so as to match the structure of the tubular first sleeve 156 and the tubular heating element 10 a.

Other embodiments of the electronic atomization device 100 are also provided. For example, the electronic atomization device 100 may include: a heating element for heating the aerosol-generating article 201 and generating a first aerosol; a first member for sealing connection with the heating element; an electrode contact spring 16 disposed outside the first member; a second part disposed on an outer side of the first part, the electrode contact spring 16 and the heating member being sandwiched between the second part and the first part while the electrode contact spring 16 is brought into electrically conductive contact with the heating member. The second component is attachable to and detachable from the first component.

The heating element may be a circumferentially heated tubular structure, such as the previously described tubular heating element 10 a; the first component may be, for example, the first end cap 151 described above; the second component may be, for example, the first sleeve 156 described above. Further, the heating element may include a first electrode 13 and a second electrode 13a, the first electrode 13 being in conductive contact with one of the electrode contact springs 16, and the second electrode 13a being in conductive contact with the other electrode contact spring 16.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the utility model, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (24)

1. An end cap structure, comprising:

a first end cap for mating connection with a tubular heating element;

the first sleeve is sleeved on the first end cover, and a gap is formed between the first sleeve and the first end cover; the first sleeve is used for clamping an electrode contact spring piece on the first end cover and enabling the electrode contact spring piece to be in conductive contact with the tubular heating element.

2. The end closure structure of claim 1,

the first end cap includes an insertion end for insertion into the tubular heating element.

3. The end closure structure of claim 2,

the insertion end is provided with a first circumferential groove used for receiving a first sealing ring.

4. The end closure structure of claim 1,

the first end cap includes a socket segment having a first support surface extending radially outward for supporting an end surface of the tubular heating element.

5. The end closure structure of claim 4,

the gap between the first sleeve and the sleeving section is used for receiving a part of the electrode contact elastic sheet.

6. The end closure structure of claim 4,

and a first lug is arranged on the outer peripheral side of the sleeving section and is used for being matched with a first groove in the electrode contact elastic sheet in a stopping way.

7. The end closure structure of claim 4,

and a first concave part is arranged on the peripheral side of the sleeving section and used for receiving a lead connecting part of the electrode contact elastic sheet.

8. The end closure structure of claim 1,

the first end cap further includes a base end having a second bearing surface extending radially outward from the first end cap for supporting an end face of the first ferrule.

9. The end closure structure of claim 8,

the base end also has a third support surface extending radially outward from the first end cap, the third support surface for supporting an end face of an insulated pipe.

10. The end closure structure of claim 8,

the base end is also provided with a second circumferential groove for receiving a second seal ring.

11. The end closure structure of claim 8,

the base end is also provided with a lead groove, and the lead groove is inwards recessed from the outer surface of the base end.

12. The end cap structure of any one of claims 1-11,

the first end cover is hollow.

13. An electronic atomization device, comprising:

a solid substrate heating assembly comprising an end cap structure according to any one of claims 1-12;

the solid substrate heating assembly further comprises the tubular heating element and the electrode contact spring, the tubular heating element having a heating chamber formed therein for receiving an aerosol-generating article; the solid substrate heating assembly for heating the aerosol-generating article and generating a first aerosol;

the tubular heating element is connected with the end cover structure and the electrode contact spring piece, and the first end cover of the end cover structure is in gas communication with the tubular heating element.

14. The electronic atomizing device of claim 13,

the tubular heating element comprises a heating substrate and an infrared electrothermal coating; the heating substrate is hollow, and the infrared electric heating coating is coated on the outer side of the heating substrate.

15. The electronic atomizing device of claim 14, wherein the solid-substrate heating assembly further comprises:

the first electrode is arranged outside the heating substrate and is in contact with the infrared electric heating coating; and

the second electrode is arranged outside the heating substrate and is in contact with the infrared electrothermal coating, and at least one part of the infrared electrothermal coating is positioned between the first electrode and the second electrode;

the first electrode is in conductive contact with one electrode contact elastic sheet, and the second electrode is in conductive contact with the other electrode contact elastic sheet.

16. The electronic atomizing device of claim 13, wherein the solid-substrate heating assembly further comprises:

and the heat insulation pipe is sleeved on the outer side of the tubular heating element and is connected with the first end cover.

17. The electronic atomization device of any one of claims 13-16 further comprising:

a liquid atomization assembly for atomizing a liquid second substrate and generating a second aerosol;

wherein the liquid atomizing assembly and the solid substrate heating assembly are in fluid communication such that the second aerosol can enter the solid substrate heating assembly and mix with the first aerosol.

18. An electronic atomization device, comprising:

a heating element for heating the aerosol-generating article and generating a first aerosol;

a first member for sealing connection with the heating element;

the electrode contact elastic sheet is arranged on the outer side of the first part;

a second part disposed on an outer side of the first part, the electrode contact spring and the heating member being sandwiched between the second part and the first part while the electrode contact spring and the heating member are brought into electrically conductive contact.

19. The electronic atomizing device of claim 18,

the heating element comprises a first electrode and a second electrode, the first electrode is in conductive contact with one electrode contact elastic sheet, and the second electrode is in conductive contact with the other electrode contact elastic sheet.

20. The electronic atomizing device of claim 18,

the first member includes a socket section having a first support surface extending radially outward for supporting an end surface of the heating element.

21. The electronic atomizing device of claim 20,

and a first lug is arranged on the outer peripheral side of the sleeving section and is used for being matched with a first groove in the electrode contact elastic sheet in a stopping way.

22. The electronic atomizing device of claim 20,

and a first concave part is arranged on the peripheral side of the sleeving section and used for receiving a lead connecting part of the electrode contact elastic sheet.

23. The electronic atomizer device of claim 18, wherein said first member is hollow, said heating element is a tubular heating element, and said first member is in gaseous communication with said tubular heating element.

24. The electronic atomization device of any one of claims 18-23,

the second component is a first sleeve.

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