Aerosol generating device and heating assembly thereof

Abstract

The utility model discloses an aerosol generating device and a heating assembly thereof. The heating assembly comprises a heating tube and a heat exchange core. The heating tube is provided with a containing cavity, and the containing cavity is used for containing an aerosol substrate. The heat exchange core is arranged at one end of the heating tube, and the end face, facing the heating tube, of the heat exchange core is provided with a heat exchange groove and a plurality of through airflow holes. The end of the heating pipe is inserted into the heat exchange groove to make heat conduction contact with the heat exchange core, and the heating pipe is configured to generate heat when powered on and at least partially transfer the heat to the heat exchange core to heat airflow passing through the airflow holes. Due to the fact that the heat exchange grooves are added, when the ends of the heating pipes are inserted into the heat exchange grooves, heat emitted by the inner walls and the outer walls of the heating pipes can be transmitted into the heat exchange grooves, the heat exchange area between the heating pipes and the heat exchange core is increased, and the heat exchange efficiency between the heating pipes and the heat exchange core is improved. And the temperature of the heat exchange core is increased, and the hot air flow effect is improved.

Description

Technical Field

[0001] The present application relates to the field of electronic atomization technology, and in particular to an aerosol generating device and a heating component thereof. Background Art

[0002] An aerosol generating device is a device that can heat and atomize an aerosol matrix into an aerosol. The aerosol generating device includes a heating component assembly, and the heating component generally includes a heating tube and a heat exchange core. When the aerosol generating device is working, the heating component mainly uses the inner wall of the heating tube to heat the heat exchange core, thereby heating the aerosol matrix through the heating tube and the hot air flow passing through the heat exchange core to generate an aerosol. However, due to the assembly gap between the inner wall of the heating tube and the heat exchange core, the thermal resistance between the heating tube and the heat exchange core is large, resulting in a low temperature of the heat exchange core, which in turn leads to a poor heating effect of the hot air flow passing through the heat exchange core on the atomized matrix. Utility Model Content

[0003] The main technical problem solved by the utility model is that the thermal resistance between the heating tube and the heat exchange core is large, which leads to a low temperature of the heat exchange core, and further leads to a poor heating effect of the hot air flow passing through the heat exchange core on the atomized substrate.

[0004] In a first aspect, an embodiment provides a heating assembly of an aerosol generating device, comprising:

[0005] A heating tube, wherein the heating tube has a containing cavity, and the containing cavity is used to contain an aerosol matrix;

[0006] And a heat exchange core, which is arranged at one end of the heating pipe, and the end surface of the heat exchange core facing the heating pipe has a heat exchange groove and a plurality of through-going air flow holes; the end of the heating pipe is inserted into the heat exchange groove and is in thermal contact with the heat exchange core, and the heating pipe is configured to generate heat when energized and at least partially transfer heat to the heat exchange core to heat the air flow passing through the air flow holes.

[0007] In one embodiment, the heat exchange core has an airflow area in the middle of the end surface facing the heating tube, the plurality of airflow holes are arranged in the airflow area, and the heat exchange groove is arranged around the airflow area.

[0008] In one embodiment, the heat exchange groove includes a first side wall, a second side wall and a bottom wall, the first side wall and the second side wall are arranged opposite to each other, and there is a gap between the first side wall and the second side wall, and the bottom wall connects the first side wall and the second side wall.

[0009] In one embodiment, the first side wall and the second side wall are parallel to the axis of the heating tube, and the bottom wall is perpendicular to the axis of the heating tube.

[0010] In one embodiment, the gap distance between the first side wall and the second side wall is a, and the value range of a is 0.315mm≤a≤0.515mm.

[0011] In one embodiment, the cross-section of the heat exchange groove is annular.

[0012] In one embodiment, the heat exchange core is made of aluminum alloy or ceramic.

[0013] In one embodiment, the extension direction of the air flow holes is parallel to the axis of the heating tube.

[0014] In one embodiment, the aperture of the air flow hole is b, and the value range of b is 0.3mm≤a≤0.8mm.

[0015] In a second aspect, an embodiment provides an aerosol generating device, comprising a shell assembly and a heating assembly as described in any one of the above items, wherein the shell assembly has an air outlet, the air outlet is connected to the accommodating cavity of the heating tube, and is used for allowing the aerosol matrix to extend from the air outlet into the accommodating cavity, and the heat exchange core is arranged at one end of the heating tube away from the air outlet.

[0016] According to the aerosol generating device and heating component thereof of the above-mentioned embodiment, the heating component includes a heating tube and a heat exchange core. The heating tube has a containing cavity, and the containing cavity is used to contain the aerosol matrix. The heat exchange core is arranged at one end of the heating tube, and the end surface of the heat exchange core facing the heating tube has a heat exchange groove and a plurality of through-flow holes. The end of the heating tube is inserted into the heat exchange groove and is in thermal contact with the heat exchange core. The heating tube is configured to generate heat when powered on and at least partially transfer heat to the heat exchange core to heat the airflow passing through the airflow hole. Due to the addition of the heat exchange groove, on the one hand, when the end of the heating tube is inserted into the heat exchange groove and is in thermal contact with the heat exchange core, the heat emitted from the inner wall and the outer wall of the heating tube can be transferred to the heat exchange groove, thereby increasing the heat exchange area between the heating tube and the heat exchange core, and improving the heat exchange efficiency between the heating tube and the heat exchange core, which is beneficial to increase the temperature of the heat exchange core and improve the effect of hot air flow. On the other hand, when the end of the heating pipe is inserted into the heat exchange groove, the side wall of the heat exchange groove insulates the heat dissipated by the heating pipe, reducing the heat diffused outside the heat exchange groove, which is further beneficial to improve the heat exchange efficiency between the heating pipe and the heat exchange core. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a three-dimensional perspective of an aerosol generating device in one embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of an aerosol generating device in an embodiment of the present application from a top view;

[0019] Figure 3 For this application Figure 2The cross-sectional view along the AA direction;

[0020] Figure 4 For this application Figure 3 The enlarged view of point B in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of a heating component in one embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of the structure of a heat exchange core in one embodiment of the present application;

[0023] Figure numerals: 100, heating component; 110, heating tube; 111, accommodating chamber; 120, heat exchange core; 121, heat exchange groove; 1211, first side wall; 1212, second side wall; 1213, bottom wall; 122, air flow hole; 123, air flow area; 200, shell component; 210, air outlet; 300, aerosol matrix; 310, suction section; 320, matrix section. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0025] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0026] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0027] This embodiment provides an aerosol generating device.

[0028] Please refer to Figure 1-6 The aerosol generating device includes a shell component 200 and a heating component 100.

[0029] Please refer to Figure 1-3 The shell assembly 200 has an air outlet 210, which is connected to the accommodating cavity 111 of the heating tube 110, for allowing the aerosol matrix 300 to extend from the air outlet 210 into the accommodating cavity 111, and the heat exchange core 120 is arranged at one end of the heating tube 110 away from the air outlet 210.

[0030] When a user uses the aerosol generating device, the aerosol matrix 300 can be placed into the accommodating cavity 111 of the heating tube 110 from the air outlet 210 , and then the aerosol matrix 300 is heated by the heating tube 110 and the heat exchange core 120 to generate an aerosol, so that the user can inhale the generated aerosol from the air outlet 210 .

[0031] Please refer to Figure 1-3 It should be noted that the aerosol matrix 300 may include a suction section 310 and a matrix section 320. The matrix section 320 is used to generate aerosol under a heating environment. The suction section 310 is arranged outside the housing assembly 200 for the user to inhale the aerosol.

[0032] On the other hand, this embodiment further provides a heating component 100 , which can be applied to the above-mentioned aerosol generating device.

[0033] Please refer to Figure 1-6 The heating component 100 includes a heating pipe 110 and a heat exchange core 120 .

[0034] Please refer to Figure 2-4 The heating tube 110 has a receiving chamber 111, and the receiving chamber 111 is used to receive the aerosol matrix 300. The heat exchange core 120 is disposed at one end of the heating tube 110, and the end surface of the heat exchange core 120 facing the heating tube 110 has a heat exchange groove 121 and a plurality of through-flow holes 122. The end of the heating tube 110 is inserted into the heat exchange groove 121 to be in thermal contact with the heat exchange core 120, and the heating tube 110 is configured to generate heat when powered on and at least partially transfer heat to the heat exchange core 120 to heat the airflow passing through the airflow holes 122.

[0035] Please refer to Figure 2-4Due to the addition of the heat exchange groove 121, on the one hand, when the end of the heating tube 110 is inserted into the heat exchange groove 121 and in thermal contact with the heat exchange core 120, the heat emitted by the inner wall and the outer wall of the heating tube 110 can be transferred to the heat exchange groove 121, thereby increasing the heat exchange area between the heating tube 110 and the heat exchange core 120, improving the heat exchange efficiency between the heating tube 110 and the heat exchange core 120, and further facilitating the increase of the temperature of the heat exchange core 120 and the effect of improving the hot air flow. On the other hand, when the end of the heating tube 110 is inserted into the heat exchange groove 121, the side wall of the heat exchange groove 121 plays a role in heat preservation for the heat emitted by the heating tube 110, reducing the heat diffused to the outside of the heat exchange groove 121, thereby further facilitating the improvement of the heat exchange efficiency between the heating tube 110 and the heat exchange core 120.

[0036] It should be noted that in a conventional heating assembly 100, the inner wall of the heating tube 110 is usually sheathed on the outside of the heat exchange core 120. At this time, only the heat emitted by the inner wall of the heating tube 110 can be transferred to the heat exchange core 120. In addition, due to the assembly gap between the inner wall of the heating tube 110 and the heat exchange core 120, the thermal resistance between the heating tube 110 and the heat exchange core 120 is relatively large, making the temperature of the heat exchange core 120 relatively low, usually only about 260°C, thereby affecting the effect of the hot air flow. In this embodiment, by providing the heat exchange groove 121, the heat exchange area between the heating tube 110 and the heat exchange core 120 is increased, and the loss of heat dissipation to the outside is reduced, which is conducive to increasing the temperature of the heat exchange core 120 and improving the effect of the hot air flow.

[0037] Please refer to Figure 2-4 and 6. In one embodiment, the heat exchange core 120 has an airflow area 123 in the middle of the end surface facing the heating tube 110 , a plurality of airflow holes 122 are arranged in the airflow area 123 , and the heat exchange grooves 121 are arranged around the airflow area 123 .

[0038] When the heating component 100 is working, the heat emitted by the heating tube 110 is transferred to the heat exchange groove 121 of the heat exchange core 120. Since the heat exchange groove 121 is arranged around the multiple air flow holes 122 in the middle of the heat exchange core 120, the heat in the heat exchange groove 121 can heat the air flow in the air flow holes 122 from all around the air flow area 123, which is beneficial to ensure the comprehensiveness and reliability of the air flow heating effect.

[0039] Please refer to Figure 6 In one embodiment, the heat exchange groove 121 includes a first side wall 1211, a second side wall 1212 and a bottom wall 1213. The first side wall 1211 and the second side wall 1212 are arranged opposite to each other, and there is a gap between the first side wall 1211 and the second side wall 1212. The bottom wall 1213 connects the first side wall 1211 and the second side wall 1212.

[0040] The heat exchange groove 121 is formed by the first side wall 1211, the second side wall 1212 and the bottom wall 1213. Specifically, the first side wall 1211, the bottom wall 1213 and the second side wall 1212 can be arranged in sequence along the direction from the periphery to the center of the heat exchange core 120, and the first side wall 1211, the bottom wall 1213 and the second side wall 1212 all surround the airflow area 123 of the heat exchange core 120.

[0041] Please refer to Figure 2-6 In one embodiment, the first side wall 1211 and the second side wall 1212 are parallel to the axis of the heating tube 110 , and the bottom wall 1213 is perpendicular to the axis of the heating tube 110 .

[0042] Since the first side wall 1211 and the second side wall 1212 are parallel to the axis of the heat pipe 110, when the end of the heat pipe 110 is inserted into the heat exchange groove 121, the first side wall 1211 and the second side wall 1212 can be more closely matched with the heat pipe 110, that is, it is helpful to reduce the matching gap between the first side wall 1211 and the second side wall 1212 and the heat pipe 110, thereby helping to further improve the heat exchange efficiency between the heat pipe 110 and the heat exchange core 120. Specifically, the axis of the heat pipe 110 is as shown in FIG. Figure 5 As shown in L1.

[0043] Please refer to Figure 6 In one embodiment, the gap distance between the first side wall 1211 and the second side wall 1212 is a, and the value range of a is 0.315mm≤a≤0.515mm.

[0044] By designing the gap distance between the first side wall 1211 and the second side wall 1212 within a reasonable value range, on the one hand, it can be ensured that the end of the heating pipe 110 can be smoothly inserted into the heat exchange groove 121, and on the other hand, the matching gap between the heating pipe 110 and the first side wall 1211 and the second side wall 1212 can be controlled within a smaller range, which is beneficial to improve the heat exchange efficiency between the heating pipe 110 and the heat exchange core 120. Specifically, the gap distance a between the first side wall 1211 and the second side wall 1212 can be 0.315mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm or 0.515mm.

[0045] Please refer to Figure 6 In one embodiment, the cross section of the heat exchange groove 121 is annular.

[0046] The heat exchange groove 121 with a circular cross section matches the cross-sectional shape of the heating tube 110, so that the heating tube 110 can be more smoothly inserted into the heat exchange groove 121. In other embodiments, the cross section of the heat exchange groove 121 may not be circular, for example, the cross section of the heat exchange groove 121 may be formed by multiple arcs arranged at intervals. Of course, in this case, the shape of the end of the heating tube 110 needs to be adaptively adjusted.

[0047] Please refer to Figure 2-4 In one embodiment, the heat exchange core 120 is made of aluminum alloy or ceramic.

[0048] Aluminum alloy and ceramic materials both have good heat resistance and thermal conductivity, which is conducive to ensuring the heating effect and service life of the heat exchange core 120. Specifically, in this embodiment, the heat exchange core 120 is made of aluminum alloy. In other embodiments, the heat exchange core 120 can also be made of ceramic or other materials with good heat resistance and thermal conductivity.

[0049] Please refer to Figure 5 and 6 In one embodiment, the extension direction of the air flow hole 122 is parallel to the axis of the heating tube 110 .

[0050] Since the extending direction of the airflow hole 122 is parallel to the axis of the heating tube 110, when the aerosol generating device is working, the airflow can flow more smoothly from the airflow hole 122 into the heating tube 110, thereby facilitating the improvement of the heating effect of the hot airflow on the aerosol matrix 300 in the heating tube 110. Specifically, the axis of the heating tube 110 is as follows: Figure 5 As shown in L1.

[0051] Please refer to Figure 5 and 6 In one embodiment, the aperture of the air flow hole 122 is b, and the value range of b is 0.3mm≤a≤0.8mm.

[0052] By designing the aperture of the airflow hole 122 to be more reasonable, on the one hand, the flow resistance of the airflow in the airflow hole 122 can be controlled to a suitable size, which is conducive to ensuring the user's puffing experience. On the other hand, it can ensure that the airflow in the airflow hole 122 is effectively heated, which is conducive to improving the heating effect of the airflow. Specifically, the aperture b of the airflow hole 122 can be 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm or 0.8mm.

[0053] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A heating assembly of an aerosol generating device, characterized in that: include: A heating tube, wherein the heating tube has a containing cavity, and the containing cavity is used to contain an aerosol matrix; And a heat exchange core, which is arranged at one end of the heating pipe, and the end surface of the heat exchange core facing the heating pipe has a heat exchange groove and a plurality of through-going air flow holes; the end of the heating pipe is inserted into the heat exchange groove and is in thermal contact with the heat exchange core, and the heating pipe is configured to generate heat when energized and at least partially transfer heat to the heat exchange core to heat the air flow passing through the air flow holes.

2. The heating assembly according to claim 1, characterized in that The heat exchange core has an airflow area in the middle of the end surface facing the heating tube, the plurality of airflow holes are arranged in the airflow area, and the heat exchange groove is arranged around the airflow area.

3. The heating assembly according to claim 2, characterized in that The heat exchange groove includes a first side wall, a second side wall and a bottom wall. The first side wall and the second side wall are arranged opposite to each other with a gap therebetween. The bottom wall connects the first side wall and the second side wall.

4. The heating assembly according to claim 3, characterized in that The first side wall and the second side wall are parallel to the axis of the heating tube, and the bottom wall is perpendicular to the axis of the heating tube.

5. The heating assembly according to claim 3, characterized in that The gap distance between the first side wall and the second side wall is a, and the value range of a is 0.315mm≤a≤0.515mm.

6. The heating assembly according to claim 2, characterized in that The cross section of the heat exchange groove is annular.

7. The heating assembly according to any one of claims 1 to 6, characterized in that: The heat exchange core is made of aluminum alloy or ceramic.

8. The heating assembly according to any one of claims 1 to 6, characterized in that: The extending direction of the air flow hole is parallel to the axis of the heating tube.

9. The heating assembly according to any one of claims 1 to 6, characterized in that: The aperture of the air flow hole is b, and the value range of b is 0.3mm≤a≤0.8mm.

10. An aerosol generating device, characterized in that: It comprises a shell component and a heating component as described in any one of claims 1 to 9, wherein the shell component has an air outlet, the air outlet is connected to the accommodating cavity of the heating tube, and is used for allowing the aerosol matrix to extend from the air outlet into the accommodating cavity, and the heat exchange core is arranged at one end of the heating tube away from the air outlet.

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