CN113171736A

CN113171736A - Inner support bracket and aerosol generating device

Info

Publication number: CN113171736A
Application number: CN202110365671.8A
Authority: CN
Inventors: 丁毅; 杜昊; 李青羽; 陈斌; 胡练球
Original assignee: Shenzhen ALD Technology Co Ltd
Current assignee: ALD Group Ltd; Shenzhen ALD Technology Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-07-27
Also published as: WO2022205712A1

Abstract

The invention relates to an inner support bracket and an aerosol generating device, wherein the inner support bracket is limited with a containing cavity for containing aerosol-forming substrate, the containing cavity is provided with a first opening and a second opening which are opposite, at least one supporting part is formed in the second opening of the inner support bracket, and the aerosol-forming substrate can be contained in the containing cavity through the first opening and is stopped on the supporting part. This aerosol generating device uses split type detachable connection structure, when changing aerosol formation substrate, can be with the whole casing of going up under from extract, support and aerosol formation substrate and heat-generating body phase separation in driving, then take out aerosol formation substrate from the chamber of acceping of interior support, can conveniently in the chamber of acceping of interior support, the residue in the shell body is cleared up, so can avoid on the heat-generating body surface, accept the chamber bottom, the interior too much residue of accumulation of shell body and influence the heating efficiency, and guaranteed aerosol generating device's life.

Description

Inner support bracket and aerosol generating device

Technical Field

The invention belongs to the technical field of aerosol devices, and particularly relates to an inner support bracket and an aerosol generating device.

Background

The heating non-combustible aerosol generating device is provided with a containing cavity and a heating element arranged in the containing cavity, the aerosol-forming substrate is inserted into the containing cavity, the heating element is also inserted into the aerosol-forming substrate, and the aerosol-forming substrate is heated by the heating element to generate inhalable aerosol. When the aerosol-forming substrate has been used up, the aerosol-forming substrate may be removed and replaced with a new aerosol-forming substrate.

Due to the characteristics of the aerosol-forming substrate material, a large amount of loose debris is remained in the bottom of the accommodating cavity during the process of taking out the aerosol-forming substrate and is difficult to clean, so that the more the residual debris is accumulated and is adhered to the heating element after long-time use, the heating efficiency of the heating element and the taste of generated aerosol are affected, an airflow channel in the aerosol generating device is easily blocked, and the service life of the aerosol generating device is affected.

Disclosure of Invention

The invention aims to solve the defects in the prior art at least to a certain extent and provides an inner support bracket and an aerosol generating device.

To achieve the above object, the present invention provides an inner holder defining a receiving cavity for receiving an aerosol-forming substrate, the receiving cavity having first and second opposing openings, the inner holder having at least one receptacle formed in the second opening, the aerosol-forming substrate being receivable into the receiving cavity through the first opening and being retained on the receptacle.

Preferably, the support portion includes an extension portion protruding from the inner support bracket in a direction away from the first opening, and a support portion connected to the extension portion, and the support portion extends in a direction of a central axis of the accommodating cavity.

Preferably, the number of the support parts is two, the support parts are symmetrically arranged relative to the central axis of the accommodating cavity, and a spacing groove for inserting the heating element into the accommodating cavity is formed between the two support parts.

Preferably, a plurality of communication holes are formed through the edge position of each support part adjacent to the extension part.

Preferably, the number of the bearing parts is multiple, the multiple bearing parts are uniformly distributed along the circumference of the central axis, and the supporting parts of the multiple bearing parts are separated from each other.

The invention also provides an aerosol generating device which comprises the inner support bracket.

Preferably, still include upper casing and lower casing that can mutual detachable connects, interior support is fixed in the upper casing, the casing is equipped with control circuit board, with power supply and the heating element that control circuit board electricity is connected down, heating element includes at least partly through the second opening stretches into receive the heat-generating body of intracavity, the heat-generating body is used for heating and is received in receive the aerosol formation substrate in the chamber in order to produce aerosol.

Preferably, the upper shell is further internally provided with a heat insulation sleeve sleeved outside the inner support bracket, and an annular cavity is formed between the inner wall of the heat insulation sleeve and the outer wall of the inner support bracket.

Preferably, a guide sleeve is arranged at one end of the lower shell facing the upper shell, the heating body is located inside the guide sleeve, and when the upper shell is in butt joint with the lower shell, the guide sleeve extends into the annular cavity.

Preferably, still be equipped with on the guide sleeve outer wall around its central axis evenly distributed's a plurality of direction fin, each the direction fin is followed guide sleeve's axial both ends extend, thermal-insulated telescopic inner wall is seted up with a plurality of the guide way of direction fin one-to-one, the direction fin can be followed the guide way slides.

Preferably, an outer wall of one end of the inner bracket adjacent to the first opening is formed with a flange in a protruding manner, and the inner bracket is fixed to the upper housing through the flange.

Preferably, the upper shell and the lower shell are butted in a plugging mode and are connected with each other in a buckling or magnetic attraction mode.

This aerosol generating device uses split type detachable connection structure, when changing aerosol formation substrate, can be with the whole casing of going up under from extract, support and aerosol formation substrate and heat-generating body phase separation in driving, then take out aerosol formation substrate from the chamber of acceping of interior support, can conveniently in the chamber of acceping of interior support, the residue in the shell body is cleared up, so can avoid on the heat-generating body surface, it influences the heating efficiency to accept the interior too much residue of chamber bottom and shell body, and guaranteed aerosol generating device's life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a block diagram of an embodiment of an aerosol generating device of the present invention with the upper housing separated from the lower housing;

FIG. 2 is a cross-sectional view of an upper housing and a lower housing of an embodiment of an aerosol generating device of the present invention as assembled;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a block diagram of an embodiment of the inner support bracket of the present invention;

FIG. 5 is a block diagram of another embodiment of an inner support bracket of the present invention;

fig. 6 is a structural view of another embodiment of the inner bracket of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," "radial," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 3, an aerosol generating device according to an embodiment of the present invention includes an upper housing 10 and a lower housing 20 detachably connected to each other.

An inner support bracket 30 is provided in the upper housing 10, the inner support bracket 30 defining a receiving cavity 31 for receiving the aerosol-forming substrate 100, the receiving cavity 31 having opposed first and

second openings

32, 33, the inner support bracket 30 having at least one receptacle 34 formed in the second opening 33, the aerosol-forming substrate 100 being receivable into the receiving cavity 31 through the first opening 32 and being stopped on the receptacle 34. The aerosol-forming substrate 100 is a columnar aerosol-generating article made of a material such as cut tobacco, tobacco particles, plant fragments, or tobacco paste, and the cross section of the housing cavity 31 is adapted to the cross section of the aerosol-forming substrate 100, and the aerosol-forming substrate is detachably inserted into the housing cavity 31 of the inner holder 30 and is held and fixed by the inner wall of the housing cavity 31. Preferably, the receiving cavity 31 is configured to be cylindrical, but in other embodiments, an elliptic cylinder or a regular prism structure may be used.

The lower case 20 is provided with a control circuit board 50, a power supply 60 electrically connected to the control circuit board 50, and a heating element 70, wherein the heating element 70 includes a heating element 71 at least partially extending into the accommodating cavity 31 through the second opening 33, and the heating element 71 is electrically connected to or disconnected from the power supply 60 by the control circuit board 50, and is used for heating or stopping heating the aerosol-forming substrate 100 accommodated in the accommodating cavity 31 to generate aerosol or stop generating aerosol.

The aerosol generating device of the embodiment adopts a split structure, so that the upper shell 10 and the lower shell 20 are butted in an insertion mode and are connected with each other in a buckling or magnetic attraction mode; when the aerosol-forming substrate 100 is replaced, the upper shell 10 can be pulled out of the lower shell 20 to separate the inner support bracket 30 and the aerosol-forming substrate 100 from the heating element 71, and then the aerosol-forming substrate 100 is taken out of the accommodating cavity 31 of the inner support bracket 30, so that residues in the accommodating cavity 31 of the inner support bracket 30 and in the outer shell can be cleaned conveniently, thereby avoiding the heating efficiency from being influenced by excessive residues accumulated on the surface of the heating element 71, at the bottom of the accommodating cavity 31 and in the outer shell, and ensuring the service life of the aerosol generating device.

In one embodiment, in order to improve the heat utilization efficiency and make the user comfortably contact with the outer wall of the upper casing 10 without scalding, a heat insulation sleeve 40 is further disposed inside the upper casing 10 and sleeved outside the inner bracket 30, and an annular cavity 41 is formed between the inner wall of the heat insulation sleeve 40 and the outer wall of the inner bracket 30.

After the upper shell 10 and the lower shell 20 are inserted and assembled together, the annular cavity 41 is approximately sealed to be used as a heat insulation cavity, so that the heat generated by the heating body 71 is reduced to be transferred to the outer wall direction of the upper shell 10.

It should be understood that, an air inlet communicated with the annular cavity 41 is formed in the upper housing 10, when the aerosol generating device is in a suction state, air outside the aerosol generating device enters through the air inlet and passes through the annular cavity 41, enters into the receiving cavity 31 from the second opening 33 of the inner support bracket 30, is sucked by a user after being mixed with generated aerosol, and thus brings heat in the annular cavity 41 back to the receiving cavity 31, so that the heat utilization efficiency is improved; the material of the heat insulating sleeve 40 is preferably a heat insulating material such as PC (polycarbonate) or PEEK (polyether ether ketone), so that heat transfer is further insulated to lower the temperature of the outer wall of the upper case 10, and the user can comfortably grip the aerosol generating device.

Preferably, the aerosol generating device of this embodiment further includes a guiding structure to ensure that the upper housing 10 and the lower housing 20 can be smoothly abutted, a guiding sleeve 80 is disposed at an end of the lower housing 20 facing the upper housing 10, the heating element 71 is located inside the guiding sleeve 80 (as shown in fig. 1 and 3, the guiding sleeve in fig. 3 is in a partially cross-sectional state), when the upper housing 10 is abutted to the lower housing 20, the guiding sleeve 80 extends into the annular cavity 41, and at the same time, the heating element 71 extends into the receiving cavity 31 from the second opening 33 of the inner supporting bracket 30, and the upper housing 10 and the lower housing 20 can be prevented from being broken due to the action of the supporting portion 34 during the insertion or detachment process through the guiding sleeve 80.

Specifically, still be equipped with on the guide sleeve 80 outer wall around its central axis evenly distributed's a plurality of guide ribs 82, each guide rib 82 extends along guide sleeve 80's axial both ends, the guide way 42 with a plurality of guide ribs 82 one-to-one is seted up to thermal-insulated sleeve 40's inner wall, but guide ribs 82 and guide way 42 sliding fit, so that when casing 10 and casing 20 pegged graft each other down, go up casing 10 and casing 20 can not take place circumferential direction down relatively, play guiding orientation's effect, avoid holding portion 34 and heat-generating body 71 to bump and lead to the heat-generating body 71 fracture.

In addition, the outer wall of the guide sleeve 80 is provided with a protrusion 81, a groove is arranged at a position corresponding to the inner wall of the heat insulation sleeve 40, and the upper shell 10 is detachably buckled on the lower shell 20 through the matching of the groove and the protrusion 81, so that the quick insertion and fixation are realized.

Further, a flange 35 is formed to protrude from an outer wall of the inner bracket 30 at an end adjacent to the first opening 32, and the inner bracket 30 is fixed to the upper case 10 by the flange 35. Specifically, flange 35 is the annular structure around interior support bracket 30 periphery, flange 35 accepts two positioning hole 351 of having seted up of chamber 31 central axis symmetry relatively, it is formed with two spliced poles 11 to go up the casing 10 upper end, two spliced poles 11 wear to locate respectively in two positioning hole 351, and threaded hole is seted up respectively, the upper end of guide sleeve 80 is formed with annular fixed part 42, the mounting hole has been seted up to the position that this fixed part 42 corresponds the screw hole, pass the mounting hole screw thread at the screw hole through the bolt, thereby make guide sleeve 80, interior support bracket 30 and last casing 10 reciprocal anchorage be in the same place.

Referring to fig. 4, in an embodiment of the inner bracket 30 provided by the present invention, in the embodiment, the number of the supporting portions 34 of the inner bracket 30 is one, the supporting portions 34 include extending portions 341 protruding from the inner bracket 30 in a direction away from the first opening 32 and supporting portions 342 connected to the extending portions 341, and the supporting portions 342 extend toward the central axis direction of the accommodating cavity 31.

It should be noted that the heating element 71 of the aerosol generating device of the present invention is a sheet-shaped body, in this embodiment, the shape of the supporting portion 342 is an arc-shaped structure, and the arc-shaped arc is a minor arc, that is, the supporting portion 342 only covers a small half area of the second opening 33, when the upper casing 10 and the lower casing 20 are butted together, the supporting portion 342 will not block the heating element 71, and the heating element 71 can pass through the second opening 33 and extend into the receiving cavity 31 of the inner holder 30; when the upper housing 10 and the lower housing 20 are pulled out and separated from each other, the remaining debris in the bottom of the receiving cavity 31 can be easily cleaned.

Referring to fig. 5, in another embodiment of the inner holder 30 according to the present invention, the number of the supporting portions 34 is two, and the supporting portions are symmetrically disposed with respect to the central axis of the accommodating cavity 31, and a spacing groove 343 for inserting the heating element 71 into the accommodating cavity 31 is formed between the two supporting portions 34. In this way, when the upper case 10 and the lower case 20 are butted together, the heating element 71 can be inserted into the containing cavity 31 through the spacing groove 343; when the upper and

lower cases

10 and 20 are pulled out and separated from each other, the remaining debris in the bottom of the receiving cavity 31 can be cleaned through the spacing groove 343.

Preferably, a plurality of communication holes 344 are formed through each supporting portion 342 at a position adjacent to the edge of the extending portion 341. The plurality of communication holes 344 of the two support parts 342 are uniformly distributed around the center axis of the receiving cavity 31, and when a user sucks, air in the annular cavity 41 can enter the receiving cavity 31 through the plurality of communication holes 344, so that the heat exchange efficiency between the annular cavity 41 and the receiving cavity 31 is improved.

Referring to fig. 6, in another embodiment of the inner bracket 30 provided by the present invention, the number of the supporting portions 34 is multiple, the supporting portions 34 are uniformly distributed along the circumference of the central axis, and the supporting portions 342 of the supporting portions 34 are separated from each other. When the aerosol-forming substrate 100 is inserted into the receiving cavity 31, the bottom end of the aerosol-forming substrate is supported by the plurality of supporting portions 342, and the gap between two adjacent extending portions 341 allows air in the annular cavity 41 to enter the receiving cavity 31, so that the heat exchange efficiency between the annular cavity 41 and the receiving cavity 31 is improved, and the upper housing 10 and the lower housing 20 are separated, and meanwhile, the residue in the receiving cavity 31 of the inner support bracket 30 can be conveniently cleaned, so that the heating efficiency is prevented from being affected by excessive residue accumulated on the surface of the heating element 71 or at the bottom of the receiving cavity 31.

In the present embodiment, the number of the receiving portions 34 may be three, four or more, and the lengths of the supporting portions 342 of the receiving portions 34 may be the same or different, so long as the heating element 71 can enter the receiving cavity 31 from the second opening 33 of the inner holder 30 when the upper case 10 and the lower case 20 are butted against each other.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In view of the above description of the technical solutions provided by the present invention, those skilled in the art will recognize that there may be variations in the technical solutions and the application ranges according to the concepts of the embodiments of the present invention, and in summary, the content of the present specification should not be construed as limiting the present invention.

Claims

1. An inner support bracket characterised in that the inner support bracket defines a receiving cavity for receiving an aerosol-forming substrate, the receiving cavity having opposed first and second openings, the inner support bracket having at least one bearing formed within the second opening, the aerosol-forming substrate being receivable into the receiving cavity through the first opening and retained on the bearing.

2. The inner bracket as claimed in claim 1, wherein the support portion comprises an extension portion protruding from the inner bracket in a direction away from the first opening, and a support portion connected to the extension portion, the support portion extending in a direction of a central axis of the receiving cavity.

3. The inner support bracket according to claim 2, wherein the number of the support parts is two, the support parts are symmetrically arranged relative to the central axis of the accommodating cavity, and a spacing groove for inserting the heating element into the accommodating cavity is formed between the two support parts.

4. The inner support bracket according to claim 3, wherein a plurality of communication holes are formed through each support portion at a position adjacent to the edge of the extension portion.

5. The inner support bracket according to claim 2, wherein the number of the bearing parts is plural, the plural bearing parts are uniformly distributed along the circumference of the central axis, and the supporting parts of the plural bearing parts are separated from each other.

6. An aerosol generating device comprising an inner support bracket as claimed in any one of claims 1 to 5.

7. The aerosol generating device of claim 6, further comprising an upper housing and a lower housing detachably connected to each other, wherein the inner bracket is fixed in the upper housing, the lower housing is provided with a control circuit board, a power supply electrically connected to the control circuit board, and a heating assembly, the heating assembly includes a heating element at least partially extending into the accommodating cavity through the second opening, and the heating element is configured to heat the aerosol-forming substrate accommodated in the accommodating cavity to generate aerosol.

8. The aerosol generating device of claim 7, wherein a heat insulating sleeve is disposed in the upper housing and sleeved outside the inner support bracket, and an annular cavity is formed between an inner wall of the heat insulating sleeve and an outer wall of the inner support bracket.

9. An aerosol generating device according to claim 8, wherein a guide sleeve is provided at an end of the lower housing facing the upper housing, the heating element being located within the guide sleeve, the guide sleeve extending into the annular chamber when the upper housing is mated with the lower housing.

10. The aerosol generating device as claimed in claim 9, wherein the outer wall of the guiding sleeve is further provided with a plurality of guiding ribs uniformly distributed around the central axis thereof, each guiding rib extends along both axial ends of the guiding sleeve, the inner wall of the heat insulating sleeve is provided with guiding grooves corresponding to the guiding ribs one to one, and the guiding ribs can slide along the guiding grooves.

11. An aerosol generating device according to claim 8, wherein the inner support bracket is formed with a flange protruding from an outer wall of an end thereof adjacent to the first opening, the inner support bracket being secured to the upper housing by the flange.

12. An aerosol generating device according to claim 7, wherein the upper housing and the lower housing are connected by means of a plug-in connection and are connected to each other by means of a snap or magnetic attraction.