Heating element, atomizing core and aerosol generating device

Abstract

The utility model belongs to the technical field of aerosol generation, and relates to a heating element which comprises two conductive leads arranged in parallel and a heating unit connected between the two conductive leads, and the polarities of the two conductive leads are opposite. The heating unit comprises at least two resistance heating wires which are arranged perpendicular to the direction of the conductive lead, the multiple resistance heating wires are arranged at intervals, and a hollow groove is formed between every two adjacent resistance heating wires; each resistance heating wire is a continuous fold line and is provided with a first included angle and a second included angle which are alternately arranged, and the opening direction of the first included angle is opposite to the opening direction of the second included angle. The utility model further relates to an atomizing core and an aerosol generating device. According to the technical scheme provided by the invention, the heating efficiency and the heating effect of the heating element can be improved under the condition of the same resistance power by optimizing the structure of the heating unit.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and more specifically, to a heating element, an atomizing core, and an aerosol generating device. Background Technology

[0002] Atomizing cores typically consist of a liquid guiding component and a heating element. The heating element heats and atomizes the aerosol medium adsorbed on the liquid guiding component for user use.

[0003] Existing heating elements typically have extended heat-conducting metal wires at the upper and lower ends of the resistance heating wire to increase the heating range of the heating unit. However, the extension of the heat-conducting metal wires will rapidly transfer the heat generated on the resistance heating wire, causing the overall temperature of the heating wire to drop. This requires more power to maintain the corresponding atomization temperature, which in turn leads to faster power consumption of the aerosol generating device and reduces the user experience. Utility Model Content

[0004] The technical problem to be solved by the embodiments of this application is that the existing heating elements have low heating efficiency and cannot quickly reach the set atomization temperature in a short time. At the same time, they consume a lot of energy, which leads to faster power consumption of the aerosol generating device and reduces the user experience.

[0005] To address the aforementioned technical problems, this application provides a heating element that employs the following technical solution:

[0006] A heating element includes two conductive leads arranged side by side, and a heating unit connected between the two conductive leads, wherein the polarities of the two conductive leads are opposite;

[0007] The heating unit includes at least two resistive heating wires arranged perpendicular to the direction of the conductive lead, and a plurality of resistive heating wires are arranged at intervals, with a hollow groove formed between two adjacent resistive heating wires.

[0008] Each of the resistive heating wires is a continuous broken line, wherein the resistive heating wire has an alternating first angle and a second angle, the opening direction of the first angle being opposite to the opening direction of the second angle.

[0009] Furthermore, the two adjacent resistive heating wires are staggered.

[0010] Furthermore, the heating unit also includes at least one connecting strip, which is connected between two adjacent resistive heating wires and is arranged parallel to the direction of the conductive leads.

[0011] Furthermore, the connecting strip is connected between a first included angle of one of the resistive heating wires and a second included angle of the other resistive heating wire; or, the connecting strip is connected between a second included angle of one of the resistive heating wires and a first included angle of the other resistive heating wire.

[0012] Furthermore, the heating unit has a length n1 along the direction in which the two conductive leads approach each other, the length n1 being 7mm to 10mm; and / or,

[0013] The heating unit has a width n2 parallel to the direction of the conductive lead, and the width n2 is 4mm to 8mm; and / or,

[0014] The length n3 of the conductive lead is greater than the width n2 of the heating unit.

[0015] Furthermore, the included angle of the first included angle is 19° to 23°; and / or,

[0016] The included angle of the second included angle is 19° to 23°.

[0017] This application also provides an atomizing core, which adopts the following technical solution:

[0018] An atomizing core includes a liquid guiding component and a heating element as described above, wherein the heating element is disposed on the liquid guiding component.

[0019] Furthermore, the liquid guiding component is provided with a mounting groove that extends through both the upper and lower ends, the heating element is wound around the mounting groove, and the conductive lead extends out of the liquid guiding component;

[0020] The outer wall of the liquid guiding component is provided with a liquid guiding groove arranged along the length direction.

[0021] Furthermore, the liquid guiding component is a porous ceramic substrate with a circular cross-section, wherein the outer diameter of the liquid guiding component is 5-8 mm;

[0022] The inner diameter of the liquid guiding component is 3-4 mm;

[0023] The pore size of the liquid guiding element is 20μm to 40μm;

[0024] The porosity of the liquid guiding component is 40% to 60%.

[0025] To address the aforementioned technical problems, this application also provides an aerosol generating device, which employs the following technical solution:

[0026] An aerosol generating device includes a heating element as described above, or an atomizing core as described above.

[0027] Compared with the prior art, the embodiments of this application have the following main advantages:

[0028] The heating element provided in this application optimizes the structure of the heating unit, reducing the use of metal connecting wires and heat-conducting metal wires, making the heating of the resistance heating wire more concentrated and the heating efficiency faster. At the same time, it can quickly reach the set heating temperature under the same resistance power, reducing the energy consumption of the heating element. In addition, the resistance heating wire is set as a continuous zigzag line, which increases the heating area of ​​the hollow groove part, thereby enhancing the heating burst force of the heating unit and improving the atomization effect on the aerosol medium. Attached Figure Description

[0029] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the heating element according to the first embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the structure of the heating element according to the second embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the atomizing core according to an embodiment of this application.

[0033] Figure label:

[0034] 10. Heating element; 20. Liquid guiding component; 1. Conductive lead; 2. Heating unit; 21. Resistance heating wire; 211. First resistance heating wire; 212. Second resistance heating wire; 22. Hollowed-out groove; 23. Connecting strip. Detailed Implementation

[0035] Unless otherwise defined, 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 application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0036] 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.

[0037] Embodiment 1 of the heating element of this application

[0038] Please see Figure 1 As shown, this application embodiment provides a heating element 10 including: two conductive leads 1 arranged in parallel, and a heating unit 2 connected between the two conductive leads 1. In this embodiment, the polarities of the two conductive leads 1 are opposite.

[0039] In some embodiments, the heating unit 2 includes at least two resistive heating wires 21 arranged perpendicular to the direction of the conductive lead 1, and a plurality of resistive heating wires 21 are arranged at intervals, with a hollow groove 22 formed between two adjacent resistive heating wires 21.

[0040] In some embodiments, each of the resistive heating wires 21 has a plurality of bending points, and the resistive heating wires 21 are continuous broken lines. In this embodiment, the resistive heating wires 21 have a first included angle α and a second included angle β, and the first included angle α and the second included angle β are alternately arranged on a plurality of bending points. The opening direction of the first included angle α is opposite to the opening direction of the second included angle β. In this embodiment, the opening direction of the first included angle α is away from the extension direction of the conductive lead 1, and the opening direction of the second included angle β is towards the extension direction of the conductive lead 1.

[0041] The heating element 10 provided in this embodiment optimizes the structure of the heating unit 2, reducing the use of metal connecting wires and heat-conducting metal wires, making the heating of the resistance heating wire 21 more concentrated and the heating efficiency faster. At the same time, it can quickly reach the set heating temperature under the same resistance power, reducing the energy consumption of the heating element 10. In addition, the resistance heating wire 21 is set as a continuous zigzag line, which increases the heating area of ​​the hollow groove 22, thereby enhancing the heating burst force of the heating unit 2 and improving the atomization effect on the aerosol medium.

[0042] The following description uses the heating element 10, which includes two resistive heating wires 21, as an example. (See figure below.) Figure 1 As shown, the heating element 10 includes a first resistive heating wire 211 located on the upper side and a second resistive heating wire 212 located on the lower side.

[0043] Please continue reading. Figure 1As shown, in some embodiments, two adjacent resistive heating wires 21 are staggered. In this embodiment, the first resistive heating wire 211 and the second resistive heating wire 212 are staggered, that is, the position of the first included angle α of the first resistive heating wire 211 corresponds to the position of the second included angle β of the second resistive heating wire 212, and the position of the second included angle β of the first resistive heating wire 211 corresponds to the position of the first included angle α of the second resistive heating wire 212.

[0044] In this embodiment, by misaligning the first resistive heating wire 211 and the second resistive heating wire 212, the heating area of ​​the hollow groove 22 is increased, thereby enhancing the heating burst force of the heating unit 2 and improving the atomization effect on the aerosol medium.

[0045] In other embodiments, when the heating unit 2 includes at least three resistive heating wires 21, the heating unit 2 has at least two hollow slots 22. By staggering the two adjacent resistive heating wires 21, the two adjacent hollow slots 22 are staggered, thereby making the hollow slots 22 on the heating element 10 evenly distributed, so that the heat of the heating element 10 can be more evenly distributed when it is powered on.

[0046] In some embodiments, the heating unit 2 has a length n1 along the direction in which the two conductive leads 1 approach each other, the length n1 being 7mm to 10mm. Specifically, the length n1 can be set to any one of 7mm, 8mm, 9mm, and 10mm or a range formed between any two values.

[0047] In some embodiments, the heating unit 2 has a width n2 parallel to the direction of the conductive lead 1, and the width n2 is 4mm to 8mm. Specifically, the width n2 can be set to any one of 4mm, 5mm, 6mm, 7mm, and 8mm or a range formed between any two values.

[0048] In some embodiments, the length n3 of the conductive lead 1 is greater than the width n2 of the heating unit 2.

[0049] In this embodiment, the length n3 of the conductive lead 1 is set to be greater than the width n2 of the heating unit 2, so that the end of the conductive lead 1 protrudes out of the heating unit 2, so that the conductive lead 1 can extend out of the liquid guide and enter the corresponding circuit.

[0050] In some embodiments, the included angle α of the first included angle is 19° to 23°, and the included angle β of the second included angle is 19° to 23°.

[0051] In this embodiment, the first included angle α and the second included angle β are set opposite each other and are equal in angle.

[0052] In this embodiment, the first included angle α and the second included angle β are alternately arranged on both sides of the hollow groove 22, and the angles of the first included angle α and the second included angle β are equal and the angles are 19° to 23°. By changing the angles of the first included angle α and the second included angle β, the shape of the hollow groove 22 is adjusted, thereby controlling the conduction and heat dissipation of heat on the heating unit 2, thereby reducing the temperature gradient of the heating unit 2, avoiding local overheating or underheating, and thus achieving a more uniform heat distribution.

[0053] Embodiment 2 of the heating element of this application

[0054] Please see Figure 2 As shown, the difference between the heating unit 2 provided in this embodiment and that in embodiment 1 is that the heating unit 2 further includes at least one connecting strip 23, which is connected between two adjacent resistive heating wires 21, and the connecting strip 23 is arranged parallel to the direction of the conductive lead 1.

[0055] In this embodiment, the connecting strip 23 is made of heat-insulating material.

[0056] In this embodiment of the application, a connecting strip 23 is provided between the first resistive heating wire 211 and the second resistive heating wire 212 to improve the structural strength of the heating unit 2.

[0057] In this embodiment, the first resistive heating wire 211 and the second resistive heating wire 212 are misaligned, and the connecting strip 23 is connected between the second included angle β of the first resistive heating wire 211 and the first included angle α of the second resistive heating wire 212.

[0058] In other embodiments, the connecting strip 23 may also be connected between the first included angle α of the first resistive heating wire 211 and the second included angle β of the second resistive heating wire 212.

[0059] In this embodiment of the application, by connecting the two ends of the connecting strip 23 to the first included angle α and / or the second included angle β, the structural strength of the heating unit 2 is further improved.

[0060] Please see Figure 3 As shown, based on the heating element described above, this application embodiment also provides an atomizing core, the atomizing core including a liquid guiding component 20 and a heating element 10 as described above, the heating element 10 being disposed on the liquid guiding component 20.

[0061] The working principle of the atomizing core provided in this application embodiment is as follows: the liquid guiding component 20 is used to adsorb the aerosol medium; two conductive leads 1 are respectively connected to the corresponding circuits, so that the heating unit 2 connected to the conductive lead 1 is energized and heated, and the heating unit 2 heats and atomizes the aerosol medium after being energized.

[0062] The atomizing core provided in this application embodiment achieves the ability to quickly reach the set heating temperature under the same resistance and power conditions by using the heating element 10, so as to fully atomize the aerosol medium, thereby ensuring sufficient atomization and improving the user's vaping experience; at the same time, it reduces the energy consumption of the heating element 10, thereby reducing the energy consumption of the atomizing core during operation, increasing the user's usage time, and improving the user's experience.

[0063] In some embodiments, the liquid guiding component 20 is provided with a mounting groove extending through both the upper and lower ends, the heating element 10 is wound around the mounting groove, and the conductive lead 1 passes through the liquid guiding component 20.

[0064] In this embodiment, the heating element 10 is wound around the mounting groove, which increases the contact area between the heating element 10 and the aerosol medium adsorbed by the liquid guide 20, thereby fully atomizing the aerosol medium and ensuring sufficient atomization. The conductive lead 1 passes through the liquid guide 20 so that it can be connected to the corresponding circuit.

[0065] In other embodiments, the outer wall of the liquid guiding member 20 is provided with a liquid guiding groove (not shown in the figure) arranged along the length direction.

[0066] In this embodiment, by creating a liquid guiding groove on the outer wall of the liquid guiding component 20, the capillary effect of the liquid guiding groove is utilized to improve the liquid guiding effect of the liquid guiding component 20. Furthermore, the liquid guiding groove can also store aerosol media, which is beneficial to increasing the storage capacity of the liquid guiding component 20.

[0067] In some embodiments, the liquid guiding element 20 is a columnar porous ceramic substrate with a circular cross-section.

[0068] In some embodiments, the outer diameter of the liquid guiding component 20 is 5 to 8 mm. Specifically, the outer diameter of the liquid guiding component 20 can be set to any one of 5 mm, 6 mm, 7 mm, and 8 mm, or a range formed between any two values.

[0069] In some embodiments, the inner diameter of the liquid guiding component 20 is 3 to 4 mm. Specifically, the inner diameter of the liquid guiding component 20 can be set to any one of 3 mm, 3.5 mm, and 4 mm, or a range formed between any two values.

[0070] In some embodiments, the pore size of the liquid guiding element 20 is 20μm to 40μm. Specifically, the pore size of the liquid guiding element 20 can be set to any one of 20μm, 30μm, and 40μm or a range formed between any two values.

[0071] In some embodiments, the porosity of the liquid guiding element 20 is 40% to 60%.

[0072] This application also provides an aerosol generating device, which includes a heating element as described above, or an atomizing core as described above.

[0073] The aerosol generating device provided in this application embodiment, by internally setting the heating element as described above, can quickly reach the set heating temperature under the same resistance power, so as to fully atomize the aerosol medium, thereby making the atomization amount sufficient and improving the user's inhalation experience; at the same time, it reduces the energy consumption of the heating element, thereby reducing the energy consumption of the aerosol generating device during operation, increasing the user's usage time, and improving the user's user experience.

[0074] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A heating element, characterized in that, It includes two conductive leads arranged side by side, and a heating unit connected between the two conductive leads, wherein the polarities of the two conductive leads are opposite; The heating unit includes at least two resistive heating wires arranged perpendicular to the direction of the conductive leads, and a plurality of the resistive heating wires are arranged at intervals, with a hollow groove formed between two adjacent resistive heating wires. Each of the resistive heating wires is a continuous zigzag line, wherein the resistive heating wire has an alternating first included angle and a second included angle, the opening direction of the first included angle being opposite to the opening direction of the second included angle; The heating unit further includes at least one connecting strip, which is connected between two adjacent resistive heating wires and is arranged parallel to the direction of the conductive lead. The connecting strip is made of heat-insulating material. The connecting strip is connected between a first included angle of one of the resistive heating wires and a second included angle of the other resistive heating wire; or, the connecting strip is connected between a second included angle of one of the resistive heating wires and a first included angle of the other resistive heating wire.

2. The heating element according to claim 1, characterized in that, The two adjacent resistive heating wires are staggered.

3. The heating element according to claim 1, characterized in that, The heating unit has a length n1 along the direction in which the two conductive leads are brought close together, and the length n1 is 7 mm to 10 mm; and / or, The heating unit has a width n2 parallel to the direction of the conductive lead, and the width n2 is 4mm to 8mm; and / or, The length n3 of the conductive lead is greater than the width n2 of the heating unit.

4. The heating element according to claim 3, characterized in that, The included angle of the first included angle is 19° to 23°; and / or, The included angle of the second included angle is 19° to 23°.

5. An atomizing core, characterized in that, It includes a liquid guiding component and a heating element as described in any one of claims 1 to 4, wherein the heating element is disposed on the liquid guiding component.

6. The atomizing core according to claim 5, characterized in that, The liquid guiding component is provided with a mounting groove that extends through both the upper and lower ends. The heating element is wound around the mounting groove, and the conductive lead extends out of the liquid guiding component. The outer wall of the liquid guiding component is provided with a liquid guiding groove arranged along the length direction.

7. The atomizing core according to claim 5 or 6, characterized in that, The liquid guiding component is a porous ceramic substrate with a circular cross-section, wherein the outer diameter of the liquid guiding component is 5-8 mm; The inner diameter of the liquid guiding component is 3-4 mm; The pore size of the liquid guiding element is 20μm to 40μm; The porosity of the liquid guiding component is 40% to 60%.

8. An aerosol generating device, characterized in that, It includes the heating element as described in any one of claims 1 to 4, or the atomizing core as described in any one of claims 5 to 7.

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