Heating element and heating non-combustible device

Abstract

This application provides a heating element and a heated non-combustible device. The heating element includes a heat-conducting substrate and a heating element. The heat-conducting substrate has a heating cavity for heating an aerosol generation matrix. The heating element is disposed within the heat-conducting substrate, and at least a portion of the heating element is exposed on the inner and / or outer sidewalls of the heat-conducting substrate. The inner and / or outer sidewalls of the heat-conducting substrate have air passages, and the exposed heating element is located within the air passages. The heating element of this application not only has a heating function, but the increased resistance of the exposed heating element can also characterize the number of suction cycles, thereby reducing the need for other additional devices, saving internal space in the heated non-combustible device, simplifying the structure of the heated non-combustible device, and reducing costs.

Description

Technical Field

[0001] This application relates to the field of heat-not-burning technology, specifically to a heating element and a heat-not-burning device. Background Technology

[0002] In heated non-combustible devices, the number of times a user inhales is typically detected by an airflow sensor. However, airflow sensors are easily affected by external airflow, leading to false inhalation detections and incorrect cumulative inhalation counts. This significantly impacts the device's heating control, causing the heating to deviate from the target control. For example, the number of inhalation ports for a normal aerosol generating matrix is ​​fixed. Overheating it can result in burning, affecting the inhaled taste.

[0003] To address the aforementioned issues, additional components are typically incorporated into heated non-combustible devices to record the number of suction ports. For example, patent CN221284698U utilizes a temperature sensor to detect the temperature of the aerosol-generating matrix, thereby obtaining a temperature characterization of the matrix's temperature. Furthermore, a comparison circuit, a counter, and a control circuit are mounted on the circuit board. The temperature sensor, in conjunction with these components, enables accurate counting of suction ports. However, in this patent, the additional components not only occupy internal space within the heated non-combustible device but also complicate the overall design and increase costs. Utility Model Content

[0004] This application provides a heating element and a heating non-combustible device. The heating element not only has the function of heating, but the increased resistance value of the exposed heating element can also characterize the number of suction times, thereby reducing the use of other additional devices, saving internal space of the heating non-combustible device, simplifying the structure of the heating non-combustible device, and reducing costs.

[0005] One embodiment of this application provides a heating element, comprising: a thermally conductive substrate having a heating cavity for heating an aerosol generation matrix; and a heating element disposed within the thermally conductive substrate, with at least a portion of the heating element exposed on the inner and / or outer sidewalls of the thermally conductive substrate, the inner and / or outer sidewalls of the thermally conductive substrate having air passages, and the exposed heating element located within the air passages.

[0006] In one embodiment, the heating element includes a first heating element and a second heating element, wherein the first heating element is embedded in a heat-conducting substrate and the second heating element is disposed on the inner or outer sidewall of the heat-conducting substrate.

[0007] In one embodiment, the first heating element and the second heating element are spiral structures. When the second heating element is disposed on the outer side wall of the heat-conducting substrate, the spiral radius of the second heating element is greater than that of the first heating element; when the second heating element is disposed on the inner side wall of the heat-conducting substrate, the spiral radius of the second heating element is smaller than that of the first heating element.

[0008] In one embodiment, the first heating element and the second heating element are an integrated structure, or the first heating element and the second heating element are separately disposed.

[0009] In one embodiment, the heating element is a flat heating wire, a round heating wire, or a combination of both.

[0010] One embodiment of this application provides a heating non-combustible device, characterized in that it includes the aforementioned heating element.

[0011] In one embodiment, the device further includes a housing and a controller. The housing has a receiving cavity with an insertion port. The heating element is disposed in the receiving cavity, and the aerosol generating matrix is ​​inserted into the heating cavity through the insertion port. The insertion port is connected to the air passage of the heating element. The controller is disposed in the housing and electrically connected to the heating element. The controller is used to detect the number of temperature changes of the heating element.

[0012] In one embodiment, part of the heating element is embedded in the sidewall of the heat-conducting substrate, and the other part is exposed on the outer sidewall of the heat-conducting substrate. The outer sidewall of the heat-conducting substrate and the accommodating cavity define an air outlet.

[0013] In one embodiment, the system further includes a base disposed in the accommodating cavity for supporting the heat-conducting substrate; the side wall of the base is provided with a first air inlet, and the two sides of the first air inlet are respectively connected to an air passage and a heating cavity.

[0014] In one embodiment, a portion of the heating element is embedded in the sidewall of the heat-conducting substrate, while another portion is exposed on the inner sidewall of the heat-conducting substrate; an air outlet is defined between the inner sidewall of the heat-conducting substrate and the outer periphery of the aerosol generating matrix.

[0015] This application provides a heating element, including a heat-conducting substrate and a heating element. The heat-conducting substrate has a heating cavity, and the heating element is disposed within the heat-conducting substrate, with at least a portion of the heating element exposed on the inner and / or outer sidewalls of the heat-conducting substrate. The inner and / or outer sidewalls of the heat-conducting substrate have air passages, and the exposed heating element is located within the air passages. Because a portion of the heating element is exposed on the inner and / or outer sidewalls of the heat-conducting substrate, and the exposed heating element is located within the air passages, when the heating element is installed in a heated non-combustible device, the resistance of the exposed heating element changes according to the temperature change of the airflow within the air passages when the user performs a suction action. The controller in the heated non-combustible device can record the number of suctions accordingly based on the change in the resistance of the heating element. In other words, the heating element not only has a heating function but also functions as a temperature sensor. Applying this heating element to a heated non-combustible device can reduce the use of a temperature sensor, accurately record the number of suctions by the user, save space in the heated non-combustible device, and reduce operating costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the heating element in Example 1;

[0017] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the heating element in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of the heating non-combustible device in Example 2 equipped with an aerosol generation matrix;

[0019] Figure 4 for Figure 3 The diagram shows a cross-sectional structure of the heated non-combustible device, with the arrow pointing to the gas passage.

[0020] Figure 5 A schematic cross-sectional view of a heating non-combustible device without an aerosol generation matrix;

[0021] Figure 6 This is a schematic diagram of the base structure in Example 2.

[0022] Reference numerals: Heating element-100, heat-conducting substrate-110, heating chamber-111, air passage-112, heating element-120, first heating element-121, second heating element-122; heating non-combustible device-200, housing-210, accommodating cavity-211, insertion port-212, base-220, first air inlet-221, through hole-222, circuit board-230, bracket-240, first mounting cavity-241, second mounting cavity-242, power supply device-250, push button switch-260, sliding cover assembly-270. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0024] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0025] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0026] Example 1

[0027] This embodiment provides a heating element 100. Please refer to [reference needed]. Figure 1-2 The heating element 100 includes a heat-conducting substrate 110 and a heating element 120.

[0028] Please refer to Figure 1-2 and Figure 4 The heat-conducting substrate 110 has a heating cavity 111 for heating the aerosol generation matrix. The heating element 120 is disposed within the heat-conducting substrate 110, and at least a portion of the heating element 120 is exposed on the inner and / or outer sidewalls of the heat-conducting substrate 110. The inner and / or outer sidewalls of the heat-conducting substrate 110 have air passages 112, and the exposed heating element 120 is located within the air passages 112.

[0029] This application involves exposing at least a portion of the heating element 120 on the inner and / or outer sidewalls of the heat-conducting substrate 110, with the exposed heating element 120 located within the air passage 112. When the heating element 100 is installed in the heated non-combustible device 200, the air passage 112 is connected to the insertion port 212 of the heated non-combustible device 200. When the user performs a suction action, the temperature of the airflow passing through the heating element 120 changes, and the temperature of the exposed heating element 120 also changes, thereby causing a change in the resistance of the heating element 120. The heating element 120 is electrically connected to the controller, and the controller records the number of suctions based on the change in the resistance of the heating element 120.

[0030] Please refer to Figure 2 The heating element includes a first heating element 121 and a second heating element 122. The first heating element 121 is embedded in the heat-conducting substrate 110, and the second heating element 122 is disposed on the inner or outer side wall of the heat-conducting substrate 110.

[0031] Embedding the first heating element 121 within the heat-conducting substrate 110 helps to rapidly increase the temperature of the heat-conducting substrate 110 and shortens the response time of the heating element 100. The second heating element 122 is exposed on the inner or outer side wall of the heat-conducting substrate 110, which helps the second heating element 122 sense changes in the airflow temperature in the air passage 112.

[0032] Please refer to Figure 1 or Figure 2 The first heating element 121 and the second heating element 122 have a spiral structure. When the second heating element 122 is disposed on the outer side wall of the heat-conducting substrate 110, the spiral radius of the second heating element 122 is larger than the spiral radius of the first heating element 121. When the second heating element 122 is disposed on the inner side wall of the heat-conducting substrate 110, the spiral radius of the second heating element 122 is smaller than the spiral radius of the first heating element 121.

[0033] By setting the first heating element 121 and the second heating element 122 as a spiral structure, it helps to heat the heat-conducting substrate 110 evenly. At the same time, the second heating element 122 is arranged around the inner or outer sidewall of the heat-conducting substrate 110, which expands the contact area between the second heating element 122 and the air passage 112, making the response more timely.

[0034] In this application, as Figure 1 The first heating element 121 and the second heating element 122 are an integrated structure. In other embodiments, the first heating element 121 and the second heating element 122 are separately disposed, that is, two separate heating wires. Alternatively, the first heating element 121 may be two or more separate heating wires, and the second heating element 122 may be one or more separate heating wires; there is no specific limitation on this.

[0035] In this embodiment, as Figure 1-2Both the first heating element 121 and the second heating element 122 are round heating wires. In other embodiments, the first heating element 121 and the second heating element 122 are flat heating wires, or one of the first heating element 121 and the second heating element 122 is a round heating wire and the other is a flat heating wire.

[0036] In this embodiment, the resistance of the heating element 120 increases as the temperature decreases.

[0037] Example 2

[0038] This embodiment provides a heating non-combustible device 200. Please refer to [reference needed]. Figure 3-6 The heating non-combustible device 200 includes the heating element 100 in Example 1.

[0039] In the embodiments of this application, such as Figure 3 The heated non-combustible device 200 also includes a housing 210 and a controller. The housing 210 is provided with a receiving cavity 211, which has an insertion port 212. The heating element 100 is disposed in the receiving cavity 211, and the aerosol generating matrix is ​​inserted into the heating chamber 111 through the insertion port 212. The insertion port 212 is connected to the air passage 112 of the heating element 100. The controller is disposed in the housing 210 and is electrically connected to the heating element 120. The controller is used to detect the number of temperature changes of the heating element 120.

[0040] More specifically, the controller is used to control the working state of the heating element 120 and monitor the resistance change of the heating element 120. When the controller detects that the resistance of the heating element 120 increases above a predetermined threshold, it is recorded as one suction port. The number of suction ports is accumulated to obtain the cumulative value of the number of suction ports. When the cumulative value reaches the predetermined number of suction ports, the controller controls the heating element 120 to stop heating.

[0041] In this embodiment, as Figure 2 Part of the heating element 120 is embedded in the side wall of the heat-conducting substrate 110, and another part is exposed on the outer side wall of the heat-conducting substrate 110. The outer side wall of the heat-conducting substrate 110 and the accommodating cavity 211 define the air outlet 112.

[0042] When the airflow temperature in the air passage 112 decreases, the temperature of the heating element 120 exposed on the outer wall of the heat-conducting substrate 110 also decreases, which in turn leads to an increase in the resistance of the heating element 120.

[0043] In this embodiment, please refer to Figure 5 The heated non-combustible device 200 also includes a base 220, which is disposed in the accommodating cavity 211 and is used to support the heat-conducting substrate 110. The side wall of the base 220 is provided with a first air inlet 221, and the two sides of the first air inlet 221 are respectively connected to the air passage 112 and the heating cavity 111.

[0044] More specifically, the bottom of the base 220 is provided with a bottom wall, and a through hole 222 is provided on the bottom wall. The aerosol generating matrix is ​​supported on the bottom wall. The first air inlet 221 and the aerosol generating matrix are provided on opposite sides of the bottom wall, and the first air inlet 221 is connected to the through hole 222.

[0045] like Figure 6 The first air intake channel includes two or more, and two or more first air intake holes 221 are evenly arranged on the side wall of the base 220.

[0046] In other embodiments, the heating non-combustible device 200 uses oxygen-free heating, with part of the heating element 120 embedded in the sidewall of the heat-conducting substrate 110 and the other part exposed on the inner sidewall of the heat-conducting substrate 110. An air outlet 112 is defined between the inner sidewall of the heat-conducting substrate 110 and the outer periphery of the aerosol generating matrix.

[0047] In the oxygen-free heating non-combustible device 200, external gas enters the aerosol generating matrix through the gas channel 112, and the atomized aerosol flows out from the aerosol generating matrix.

[0048] In this embodiment, as Figure 5 The controller includes a circuit board 230 and a counting device (not shown). The counting device is mounted on and electrically connected to the circuit board 230. The first heating element 121 and the second heating element 122 are both electrically connected to the circuit board 230. The circuit board 230 is configured to control the operating state of the first heating element 121 and the second heating element 122 and to monitor the resistance change of the second heating element 122. When the circuit board 230 detects that the resistance increase of the second heating element 122 is higher than a predetermined threshold, the circuit board 230 triggers the counting device to record the number of suction ports. The counting device accumulates the number of suction ports to obtain a cumulative value and sends the cumulative value to the circuit board 230, so that the circuit board 230 can control the first heating element 121 and the second heating element 122 to stop heating.

[0049] Please refer to Figure 5 The heating non-combustible device 200 also includes a bracket 240, which is disposed inside the housing 210 and defines a first mounting cavity 241 and a second mounting cavity 242 with the housing 210. The receiving cavity 211 is disposed inside the first mounting cavity 241.

[0050] Please refer to Figure 5The heated non-combustible device 200 also includes a power supply device 250 and an airflow sensor (not shown). The power supply device 250 is electrically connected to the circuit board 230, the first heating element 121, the second heating element 122, the counting device, and the airflow sensor, and is used to supply power to the circuit board 230, the heating element 120, the counting device, and the power supply device 250. The circuit board 230 is electrically connected to the airflow sensor. Both the power supply device 250 and the circuit board 230 are disposed within the second mounting cavity 242.

[0051] Please refer to Figure 5 The heating non-combustible device 200 also includes a push-button switch 260, which is mounted on the circuit board 230 and partially exposed outside the housing 210.

[0052] Please refer to Figure 3 or Figure 5 The heating non-combustible device 200 also includes a sliding cover assembly 270, which is slidably disposed on the housing 210 and is used to cover or expose the insertion port 212.

[0053] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A heating element, characterized in that, include: A thermally conductive substrate having a heating cavity for heating an aerosol-generating matrix; The heating element is disposed within the heat-conducting substrate, and at least a portion of the heating element is exposed on the inner and / or outer sidewalls of the heat-conducting substrate. The inner and / or outer sidewalls of the heat-conducting substrate have air passages, and the exposed heating element is located within the air passages.

2. The heating element as described in claim 1, characterized in that, The heating element includes a first heating element and a second heating element. The first heating element is embedded in the heat-conducting substrate, and the second heating element is disposed on the inner or outer sidewall of the heat-conducting substrate.

3. The heating element as described in claim 2, characterized in that, The first heating element and the second heating element are spiral structures. When the second heating element is disposed on the outer side wall of the heat-conducting substrate, the spiral radius of the second heating element is greater than that of the first heating element; when the second heating element is disposed on the inner side wall of the heat-conducting substrate, the spiral radius of the second heating element is smaller than that of the first heating element.

4. The heating element as described in claim 2, characterized in that, The first heating element and the second heating element are an integrated structure, or the first heating element and the second heating element are separately disposed.

5. The heating element as described in claim 1, characterized in that, The heating element is a flat heating wire, a round heating wire, or a combination of both.

6. A heating non-combustible device, characterized in that, Includes the heating element as described in any one of claims 1-5.

7. The heating non-combustible device as described in claim 6, characterized in that, It also includes a housing and a controller. The housing is provided with a receiving cavity, the receiving cavity has an insertion port, the heating element is disposed in the receiving cavity, and the aerosol generating matrix is ​​inserted into the heating cavity through the insertion port, the insertion port being connected to the air passage of the heating element; the controller is disposed in the housing and electrically connected to the heating element, the controller being used to detect the number of temperature changes of the heating element.

8. The heating non-combustible device as described in claim 7, characterized in that, Part of the heating element is embedded in the side wall of the heat-conducting substrate, and another part is exposed on the outer side wall of the heat-conducting substrate. The outer side wall of the heat-conducting substrate and the accommodating cavity define an air outlet.

9. The heating non-combustible device as described in claim 8, characterized in that, It also includes a base, which is disposed in the accommodating cavity and is used to support the heat-conducting substrate; the side wall of the base is provided with a first air inlet, and the two sides of the first air inlet are respectively connected to the air passage and the heating cavity.

10. The heating non-combustible device as described in claim 7, characterized in that, Part of the heating element is embedded in the sidewall of the heat-conducting substrate, and another part is exposed on the inner sidewall of the heat-conducting substrate; an air outlet is defined between the inner sidewall of the heat-conducting substrate and the outer periphery of the aerosol generating matrix.

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