Aerosol-generating device

Abstract

The utility model provides an aerosol generating device which comprises a shell assembly, a first air flow channel is defined in the shell assembly, an insertion hole is formed in the shell assembly, and part of air flow of the insertion hole flows to the first air flow channel; the holding part is connected with the shell assembly, the holding part internally comprises a containing cavity and a heating cavity which are communicated, the containing cavity is communicated with the insertion hole, the first airflow channel is located outside the holding part, and airflow of the first airflow channel flows into the containing cavity after flowing to the heating cavity and enters the interior of the aerosol generating product from the bottom end of the aerosol generating product; a second airflow channel is defined by the inner wall of the containing cavity and the peripheral wall of the aerosol generating product, part of airflow in the first airflow channel flows to the second airflow channel, and airflow in the second airflow channel bypasses the peripheral wall of the aerosol generating substrate and then enters the aerosol generating product from the bottom end of the aerosol generating product. Normal suction resistance is kept when a user sucks, so that the service life of the aerosol generating device is prolonged.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and particularly to aerosol generation apparatus. Background Technology

[0002] When a heated but non-combustible aerosol generator uses air heating, air is typically heated by a heating element. Air enters the heating element from the bottom of the generator, and the element has an internal airflow channel. The air flows through this channel, carrying the heat generated by the heating element to the aerosol-generating product, thus producing aerosols. However, during the heating process, carbon buildup can occur at the end of the heating element furthest from the aerosol-generating product. This can also cause blockages in the airflow channel, increasing suction resistance and eventually preventing suction, thus affecting the lifespan of the aerosol generator. Utility Model Content

[0003] To address the problem of carbon buildup in heating components leading to increased suction resistance and thus affecting the lifespan of the aerosol generation device.

[0004] This application provides an aerosol generating apparatus, comprising:

[0005] A housing assembly having an insertion hole for receiving an aerosol-generated article inserted therein, and a first airflow channel defined within the housing assembly, wherein a portion of the airflow from the insertion hole flows into the first airflow channel;

[0006] A retainer is connected to the housing assembly. The retainer includes a communicating receiving cavity and a heating cavity. The receiving cavity communicates with the insertion hole. The receiving cavity is used to receive at least a portion of the aerosol generating article. The heating cavity is used to receive a heating component. A first airflow channel is located outside the retainer. Airflow from the first airflow channel flows into the heating cavity and then into the receiving cavity, entering the interior of the aerosol generating article from its bottom end. The inner wall of the receiving cavity and the outer peripheral wall of the aerosol generating article define a second airflow channel. A portion of the airflow in the first airflow channel flows into the second airflow channel, and the airflow in the second airflow channel bypasses the peripheral wall of the aerosol generating article and enters the interior of the aerosol generating article from its bottom end.

[0007] This application provides an aerosol generating device, wherein the housing assembly includes:

[0008] The outer casing has an insertion port for inserting the aerosol-generating product;

[0009] A bracket defines an insertion hole within the bracket, the insertion hole communicating with an insertion port, the bracket being disposed within the housing, the bracket having a first airflow channel, and the peripheral wall of the insertion hole having a first vent, the first airflow channel communicating with the insertion hole through the first vent; a retainer is located within the housing, and the retainer is fixedly connected to the bracket.

[0010] This application provides an aerosol generating device, wherein the ends of the bracket and the retainer define a second vent, and the airflow of the first airflow channel enters the second airflow channel through the second vent.

[0011] This application provides an aerosol generating device, wherein the end of the retaining member is provided with a flared section, the flared section being used to guide the airflow to the second vent.

[0012] This application provides an aerosol generating device, wherein the insertion port is provided with a guide slope for guiding external air into the insertion hole.

[0013] This application provides an aerosol generating device, wherein the first air inlet is a plurality of spaced-apart vents.

[0014] This application provides an aerosol generating device, wherein the retaining member includes a first tube and a second tube sleeved outside the first tube, the heating cavity and the receiving cavity are defined inside the first tube, and a spacer cavity is defined between the outer peripheral wall of the first tube and the inner peripheral wall of the second tube.

[0015] This application provides an aerosol generating device, wherein the spacer cavity is a closed vacuum cavity;

[0016] Alternatively, the spacer cavity may be filled with insulating material.

[0017] This application provides an aerosol generating device, wherein a protruding structure is provided on the first tube body, the protruding structure protrudes into the first tube body, the receiving cavity is located on one side of the protruding structure, and the heating cavity is located on the other side of the protruding structure.

[0018] This application provides an aerosol generating apparatus, wherein the inner diameter of the insertion hole gradually decreases along the direction in which the aerosol generating article is inserted.

[0019] The aerosol generating device provided in this application has two airflow channels, meaning that the airflow from both the first and second airflow channels can flow into the interior of the aerosol generating product. This reduces suction resistance, allowing the aerosol to flow more smoothly within the product and facilitating inhalation. Furthermore, even if carbon buildup occurs in the heating element and the first airflow channel becomes blocked, airflow can still enter the aerosol generating product through the second airflow channel, maintaining normal suction resistance during inhalation and extending the lifespan of the aerosol generating device. Attached Figure Description

[0020] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1 This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0023] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0024] Figure 4 This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of an aerosol generating apparatus according to an embodiment of this application;

[0026] Figure 6 for Figure 5 A magnified view of a portion of the image;

[0027] Figure 7 This is a schematic diagram of a retainer according to an embodiment of this application.

[0028] In the picture:

[0029] 10. Aerosol generating device;

[0030] 1. Housing assembly;

[0031] 11. Outer shell; 111. Insertion port; 112. Guide slope;

[0032] 12. Bracket; 121. Insertion hole; 122. First airflow channel; 123. First vent; 124. First bracket; 125. Second bracket; 126. Third bracket; 127. Fixing component;

[0033] 13. End cap;

[0034] 2. Retaining components;

[0035] 21. Receiving cavity; 211. Second airflow channel; 212. Second vent; 22. Heating cavity; 23. Flared section; 24. First tube body; 25. Second tube body; 26. Spacer cavity; 27. Protruding structure;

[0036] 3. Heating components;

[0037] 4. Circuit board assembly; 41. Airflow sensor; 42. Detector;

[0038] 20. Aerosol-generated products. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying the quantity or order of the indicated technical features relative to their importance. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship or movement of the components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0041] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0042] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be intervening elements. When an element is referred to as being "connected to" another element, it can be directly connected to the other element, or there may be one or more intervening elements. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0043] One embodiment of this application provides an aerosol generating device 10, including a housing assembly 1 and a retainer 2.

[0044] In one embodiment of this application, the housing assembly 1 is provided with an insertion hole 121 for receiving the aerosol generating article 20, and a first airflow channel 122 is defined inside the housing assembly 1, with a portion of the airflow from the insertion hole 121 flowing into the first airflow channel 122. The retainer 2 is connected to the housing assembly 1. The retainer 2 includes a communicating receiving cavity 21 and a heating cavity 22. The receiving cavity 21 is communicating with the insertion hole 121. The receiving cavity 21 is used to receive at least a portion of the aerosol generating article 20. The heating cavity 22 is used to receive the heating assembly 3. The first airflow channel 122 is located outside the retainer 2. The airflow in the first airflow channel 122 flows into the receiving cavity 21 after flowing into the heating cavity 22, and enters its interior from the bottom end of the aerosol generating article 20. The inner wall of the receiving cavity 21 and the outer peripheral wall of the aerosol generating article 20 define a second airflow channel 211. A portion of the airflow in the first airflow channel 122 flows into the second airflow channel 211, and the airflow in the second airflow channel 211 bypasses the peripheral wall of the aerosol generating article 20 and enters its interior from the bottom end of the aerosol generating article 20.

[0045] The aerosol generating device provided in this application has two airflow channels, namely, the airflow of the first airflow channel 122 and the second airflow channel 211 can both flow into the interior of the aerosol generating product 20, thereby reducing suction resistance and allowing the aerosol to flow more smoothly inside the aerosol generating product 20, making it easier for users to inhale.

[0046] Furthermore, when carbon buildup occurs during heating of the heating component 3, if the first airflow channel 122 becomes blocked, the airflow can still enter the interior of the aerosol generating product 20 through the second airflow channel 211, allowing the user to maintain normal suction resistance during suction, thereby extending the lifespan of the aerosol generating device 10.

[0047] In one embodiment of this application, the aerosol-generating article 20 is columnar.

[0048] In one embodiment of this application, the columnar aerosol generating article 20 may include a mouthpiece, a connecting section, and a tobacco segment capable of generating aerosols. The connecting section is located between the mouthpiece and the tobacco segment and is used to guide the aerosol to the mouthpiece. The mouthpiece can be held in the mouth of a user, who can inhale the aerosol by sucking on the mouthpiece. The tobacco segment includes a tobacco layer, a metal sensor, and a paper layer arranged sequentially from the inside out. The tobacco segment in the aerosol generating article 20 may contain an aerosol generating matrix.

[0049] As used herein, the term "aerosol-generating matrix" refers to a matrix capable of releasing volatile substances to form inhalable aerosols. An aerosol-generating matrix may include tobacco-containing materials containing volatile tobacco flavor compounds that are released from the substrate upon heating. Specifically, an aerosol-generating matrix may be a tobacco-containing aerosol-generating matrix or an aerosol-generating matrix containing solid tobacco. Alternatively, an aerosol-generating matrix may include non-tobacco materials. An aerosol-generating matrix may also include aerosol-forming agents. Examples of suitable aerosol-forming agents are glycerol and propylene glycol.

[0050] As needed, the aerosol generating matrix may contain additional tobacco or non-tobacco volatile aroma compounds released when the aerosol generating matrix is ​​heated. The aerosol generating matrix may also contain microcapsules, which may contain additional tobacco or non-tobacco volatile aroma compounds, and such microcapsules may melt during heating of the solid aerosol generating matrix.

[0051] In one embodiment of this application, the aerosol generating article 20 may be generally a longitudinally extending rod-shaped structure. The mouthpiece may be disposed adjacent to the proximal end of the aerosol generating article 20. The tobacco segment may be disposed adjacent to the distal end of the aerosol generating article 20.

[0052] In one embodiment of this application, the heating component 3 can generate heat and heat air to produce a hot airflow, thereby heating the aerosol generation product 20. In one embodiment of this application, the heating component 3 includes graphite, a heating wire, and conductive leads. The heating wire is spiral-shaped and connected to the conductive leads. A cavity is provided inside the graphite, and the heating wire is disposed within the cavity. The outer peripheral wall of the heating wire contacts the inner peripheral wall of the graphite cavity, allowing the heat generated by the heating wire to be transferred to the graphite. An air passage is also provided inside the graphite, through which the heat generated by the heating wire is conducted to the air within the air passage, thereby heating the aerosol generation product 20. In one embodiment of this application, the air passages inside the graphite are uniformly distributed along the circumferential direction of the graphite. In one embodiment of this application, an enamel layer is also provided on the outer surface of the heating wire to maintain electrical insulation between the heating wire and the graphite.

[0053] In one embodiment of this application, the housing assembly 1 includes a housing 11 and a support 12. The housing 11 has an insertion port 111 for inserting the aerosol generating article 20. The support 12 defines an insertion hole 121, which communicates with the insertion port 111. The support 12 is disposed inside the housing 11 and has a first airflow channel 122. The peripheral wall of the insertion hole 121 has a first vent 123, and the first airflow channel 122 communicates with the insertion hole 121 through the first vent 123. The retainer 2 is located inside the housing 11 and is fixedly connected to the support 12.

[0054] Combination Figure 6 As shown, after the aerosol generating article 20 is inserted into the insertion hole 121, there is a gap between the outer peripheral wall of the aerosol generating article 20 and the inner peripheral wall of the insertion hole 121. This gap is connected to the first vent 123 and the first airflow channel 122, and the airflow flows along... Figure 6 The airflow flows in the direction indicated by the middle arrow to the first airflow channel 122, and under the guidance of the first airflow channel 122, the airflow flows to the heating chamber 22, and then flows into the receiving chamber 21. The airflow then enters the interior of the aerosol generating product 20 from the bottom end. The airflow drives the aerosol to flow inside the aerosol generating product 20, and the mixed airflow flows to the mouthpiece of the aerosol generating product 20 for the user to inhale.

[0055] Furthermore, the inner wall of the receiving cavity 21 and the outer peripheral wall of the aerosol generating article 20 define a second airflow channel 211. Part of the airflow in the first airflow channel 122 flows to the second airflow channel 211, and the airflow in the second airflow channel 211 bypasses the peripheral wall of the aerosol generating article 20 and enters the interior of the aerosol generating article 20 from the bottom end.

[0056] In this way, the airflow from the first airflow channel 122 and the second airflow channel 211 can both flow into the interior of the aerosol generating product 20, thereby reducing suction resistance and making it easier for users to inhale.

[0057] In one embodiment of this application, the housing 11 includes an end cap 13, which is part of the housing 11 and has an opening for insertion of the aerosol generating article 20. A support 12 may be connected to the end cap 13.

[0058] In one embodiment of this application, the support 12 includes a first support 124, a second support 125, and a third support 126. The first support 124 has an insertion hole 121 for inserting the aerosol generating article 20, and the second support 125 is fitted over the first support 124. A first vent 123 is provided between the end cap 13 and the first support 12, and a partial first airflow channel 122 is defined between the first support 124 and the second support 125. The third support 126 and the second support 125 are distributed along the axis of the aerosol generating device 10, and a retainer 2 is disposed within the third support 126, defining a partial first airflow channel 122 between the third support 126 and the retainer 2. In one embodiment of this application, the aerosol generating article 20 abuts against the first support 124, and the inner diameter of the first support 124 is slightly smaller than that of the aerosol generating article 20, so that air enters the first airflow channel 122 from the first vent 123.

[0059] In one embodiment of this application, one end of the retainer 2 is fitted inside the second bracket 125, and the other end of the retainer 2 is connected to the third bracket 126 via the fastener 127.

[0060] In one embodiment of this application, the ends of the bracket 12 and the retainer 2 define a second vent 212, through which airflow from the first airflow channel 122 enters the second airflow channel 211. In another embodiment of this application, the ends of the first bracket 124 and the retainer 2 define a second vent 212, through which air entering the receiving cavity 21 from the insertion port 11 passes through the first vent 123 and enters between the first bracket 124 and the second bracket 125, then a portion enters between the third bracket 126 and the retainer 2, and another portion enters from the second vent 212 into the inner wall of the receiving cavity 21, which, together with the outer peripheral wall of the aerosol generating article 20, defines the second airflow channel 211.

[0061] In one embodiment of this application, due to the difference in the manufacturing process of the aerosol-generated article 20, the diameter of the aerosol-generated article 20 can be smaller than the inner diameter of the first support 124. Airflow can pass between the first support 124 and the aerosol-generated article 20. At this time, the airflow of the first airflow channel 122 enters the second airflow channel 211 from the second vent 212 between the first support 124 and the retainer 2.

[0062] In one embodiment of this application, the end of the retainer 2 is provided with a flared section 23, which is used to guide airflow to the second vent 212. In one embodiment of this application, the inner diameter of the flared section 23 is larger than the inner diameter of the receiving cavity 21.

[0063] In one embodiment of this application, a guide slope 112 is provided at the insertion port 111 to guide external air into the insertion hole 121.

[0064] In one embodiment of this application, there are multiple first vents 123 spaced apart. In another embodiment of this application, the end cap 13 is provided with a groove or a through hole at one end near the first bracket 124, and the groove and the first bracket 124 define the first vent 123, or the through hole serves as the first vent 123.

[0065] In one embodiment of this application, the retainer 2 includes a first tube 24 and a second tube 25 sleeved outside the first tube 24. The first tube 24 defines a heating cavity 22 and a receiving cavity 21 inside. A spacer cavity 26 is defined between the outer peripheral wall of the first tube 24 and the inner peripheral wall of the second tube 25. The spacer cavity 26 can keep the heat generated by the heating component 3 in the first tube 24 and prevent the heat generated by the heating component 3 from being transferred to the second tube 25, thereby achieving the effect of heat insulation.

[0066] In one embodiment of this application, the spacer cavity 26 is a sealed vacuum cavity. In another embodiment of this application, the spacer cavity 26 is filled with thermal insulation material.

[0067] In one embodiment of this application, a protruding structure 27 is provided on the first tube 24, the protruding structure 27 protruding into the first tube 24, a receiving cavity 21 is located on one side of the protruding structure 27, and a heating cavity 22 is located on the other side of the protruding structure 27. The aerosol generating article 20 is disposed in the receiving cavity 21 and then abuts against the protruding structure 27.

[0068] In one embodiment of this application, the inner diameter of the insertion hole 121 gradually decreases along the direction of insertion of the aerosol generating article 20, which facilitates insertion of the insertion hole 121.

[0069] In one embodiment of this application, the aerosol generating device 10 further includes a circuit board assembly 4, which is disposed on the bracket 12. In another embodiment of this application, an airflow sensor 41 is disposed on the circuit board assembly 4. The airflow sensor 41 is fixed to the second bracket 125 and exposed to the first airflow channel 122. When airflow flows in the first airflow channel 122, the airflow sensor 41 is triggered, and the controller on the circuit board assembly 4 controls the heating assembly 3 to start working.

[0070] In one embodiment of this application, a detector 42 is provided on the circuit board assembly 4. The detector 42 is used to detect whether the aerosol generating article 20 is inserted and transmits the signal indicating whether the aerosol generating article 20 is inserted to the controller. If the detector 42 detects that the aerosol generating article 20 has been inserted, the airflow sensor 41 can be triggered. In one embodiment of this application, the detector 42 includes an infrared recognition sensor.

[0071] In one embodiment of this application, the aerosol generating device 10 further includes a battery assembly, a heating assembly 3 and a circuit board assembly 4 electrically connected to the battery assembly, and the battery assembly provides power to the heating assembly 3.

[0072] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An aerosol-generating device, characterized by, The application relates to a smoking device, comprising: a housing assembly, which is provided with an insertion hole for receiving an aerosol generating article, and which defines a first airflow channel inside the housing assembly, part of the airflow of the insertion hole flowing to the first airflow channel; a holder, which is connected to the housing assembly, and which comprises a receiving cavity and a heating cavity in communication, the receiving cavity being in communication with the insertion hole and being used for receiving at least part of the aerosol generating article, the heating cavity being used for receiving a heating assembly, the first airflow channel being located outside the holder, the airflow of the first airflow channel flowing into the heating cavity, then flowing into the receiving cavity, and entering the inside of the aerosol generating article from the bottom end of the aerosol generating article, the inner wall of the receiving cavity and the peripheral wall of the aerosol generating article defining a second airflow channel, part of the airflow in the first airflow channel flowing to the second airflow channel, and the airflow in the second airflow channel entering the inside of the aerosol generating article from the bottom end of the aerosol generating article after bypassing the peripheral wall of the aerosol generating article.

2. The aerosol-generating device of claim 1, wherein, The housing assembly comprises: an outer shell, which is provided with an insertion opening for the aerosol generating article; a support, which defines the insertion hole inside the support, the insertion hole being in communication with the insertion opening, the support being arranged in the outer shell, the support being provided with the first airflow channel, the peripheral wall of the insertion hole being provided with a first air inlet, and the first airflow channel being in communication with the insertion hole through the first air inlet; and 3. The aerosol-generating device of claim 2, wherein, the holder being arranged in the outer shell, and the holder being fixedly connected to the support.

4. The aerosol-generating device of claim 3, wherein, The support and the end of the holder define a second air inlet, and the airflow of the first airflow channel enters the second airflow channel through the second air inlet.

5. The aerosol-generating device of claim 2, wherein, The end of the holder is provided with a flared section, which is used for guiding the airflow to the second air inlet.

6. The aerosol-generating device of claim 2, wherein, The insertion opening is provided with a guide slope, which is used for guiding external air into the insertion hole.

7. The aerosol-generating device of claim 1, wherein, The first air inlets are spaced.

8. The aerosol-generating device of claim 7, wherein, The holder comprises a first tube body and a second tube body arranged outside the first tube body, the first tube body defining the heating cavity and the receiving cavity inside the first tube body, and the peripheral wall of the first tube body and the inner peripheral wall of the second tube body defining a spacing cavity. The spacing cavity is a sealed vacuum cavity.

9. The aerosol-generating device of claim 7, wherein, Alternatively, the spacing cavity is filled with a heat preservation material. 10.The aerosol-generating device of claim 1, wherein, The first tube body is provided with a protruding structure, which protrudes into the inside of the first tube body, the receiving cavity being located on one side of the protruding structure, and the heating cavity being arranged on the other side of the protruding structure. The inner diameter of the insertion hole gradually decreases along the direction of insertion of the aerosol generating article.

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