Heating element, preparation method of heating element and aerosol generating device

Abstract

The embodiment of the invention provides a heating element, a preparation method of the heating element and an aerosol generating device, and relates to the technical field of electronic components, the heating element comprises a base material pipe, at least one heating piece, at least one temperature measuring piece and at least one packaging piece, the heating piece covers a first preset area on the outer wall of the base material pipe, and the packaging piece covers a second preset area on the outer wall of the base material pipe. The temperature measuring piece covers a second preset area on the outer wall of the base material pipe, and the packaging piece covers part of the heating piece and part of the temperature measuring piece. Wherein the heating piece is used for being connected with a power supply, and the temperature measuring piece is used for being connected with a controller. According to the heating element provided by the embodiment of the invention, the heating element, the temperature measuring element and the packaging element are integrated on the base material pipe to form a highly integrated element, and the design requirement of a small-size portable heater or atomizer can be met.

Description

Technical Field

[0001] The present application relates to the technical field of electronic components, and in particular to a heating element, a method for preparing a heating element, and an aerosol generating device. Background Art

[0002] Currently, heating components are required in consumer electronic devices such as portable heaters and atomizers. In order to have a smaller size and better portability, the heating components are developed in the direction of small size and thin thickness.

[0003] In the related art, traditional portable heaters can realize basic heating functions but do not have temperature monitoring functions. Some new portable heaters on the market are equipped with temperature detection components on traditional heaters to achieve temperature control.

[0004] However, the integration level of the above-mentioned heating components is not high enough to meet the design requirements of small-volume portable heaters or atomizers. Summary of the invention

[0005] Based on this, the present application provides a heating element, a method for preparing a heating element, and an aerosol generating device, so as to at least solve the problem that the integration of the heating components on the existing portable heaters is not high enough to meet the design requirements of small-volume portable heaters or atomizers.

[0006] In a first aspect, the present application provides a heating element, comprising a substrate tube, at least one heating element, at least one temperature measuring element, and at least one packaging element;

[0007] The heating element covers a first preset area on the outer wall of the substrate tube;

[0008] The temperature measuring element is covered on a second preset area on the outer wall of the substrate tube;

[0009] The packaging component covers part of the heating component and part of the temperature measuring component;

[0010] The heating element is used to be connected to a power source, and the temperature measuring element is used to be connected to a controller.

[0011] In a possible implementation, the heating element is a metal layer, a metal oxide layer, an alloy layer, or a non-metal oxide layer.

[0012] In a possible implementation, the ratio of the area of ​​the substrate tube covered by the heating element to the total outer circumference area of ​​the substrate tube is greater than or equal to 60%.

[0013] In a possible implementation, the temperature measuring element includes a temperature measuring portion and a conductive portion, the temperature measuring portion is close to the heating element, the temperature measuring portion is close to the heating element, and is surrounded by the heating element;

[0014] The conductive part is connected to the temperature measuring part and is used to be connected to the controller.

[0015] In a possible implementation, at least a first electrode and a second electrode are provided in the package, and the first electrode is connected to the heating element and is used to be connected to the power source;

[0016] The second electrode is connected to the conductive part and is used to be connected to the controller.

[0017] In a possible implementation manner, the temperature measuring portion is a metal layer or a metal oxide layer.

[0018] In a possible implementation manner, the temperature measuring portion is curved.

[0019] In a possible implementation, the heating element and the temperature measuring element both extend to the end of the substrate tube, and the packaging element is disposed at the end of the substrate tube and covers a portion of the heating element and a portion of the temperature measuring element.

[0020] In a possible implementation, a protective element is further included, and the protective element is at least covered on the heating element and the temperature measuring element.

[0021] In a possible implementation manner, the protective element is a quartz glass layer, a ceramic layer, or a non-metallic oxide layer.

[0022] In a second aspect, the present application also provides a method for preparing a heating element, comprising:

[0023] providing a substrate tube;

[0024] forming a heating element at a first predetermined area on the outer wall of the substrate tube;

[0025] A temperature measuring element is formed in a second preset area on the outer wall of the substrate tube;

[0026] Part of the heating element and part of the temperature measuring element are packaged to form a package.

[0027] In a possible implementation, forming a heating element in a first preset area on the outer wall of the substrate tube includes:

[0028] The heating element is formed according to a first preset pattern through a deposition process.

[0029] In a possible implementation, forming a temperature measuring element in a second preset area on the outer wall of the substrate tube includes:

[0030] The temperature measuring element is formed into a temperature measuring element according to a second preset pattern through a deposition process.

[0031] In a possible implementation, the method further includes:

[0032] A protective member is formed at least on the heating member and the temperature measuring member.

[0033] In a possible implementation, forming a protective element at least on the heating element and the temperature measuring element includes:

[0034] The protection member is formed by a passivation process.

[0035] In a third aspect, the present application further provides an aerosol generating device, comprising a device body and a heating element disposed on the device body, wherein the heating element is any one of the heating elements provided in the first aspect;

[0036] Alternatively, the heating element is obtained by any one of the methods for preparing a heating element provided in the second aspect.

[0037] The heating element, the preparation method of the heating element and the aerosol generating device provided by the present application, the heating element comprises a substrate tube, at least one heating element, at least one temperature measuring element and at least one packaging element, by arranging a heating cavity in the substrate tube, it can be used to place aerosol generating products, etc., by covering the heating element in a first preset area on the outer wall of the substrate tube for heating, by covering the temperature measuring element in a second preset area on the outer wall of the substrate tube for detecting the temperature of the substrate tube, by covering the packaging element on part of the heating element and part of the temperature measuring element, wherein the heating element is used to connect to a power source to supply power to the heating element, and the temperature measuring element is used to connect to a controller to convert the measurement signal on the temperature measuring element into temperature information through the controller. Thus, the heating element provided by the present application, by integrating the heating element, the temperature measuring element and the packaging element on the substrate tube, forms a highly integrated element, has a smaller size, can meet the design requirements of a small-volume portable heater or atomizer, and is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] Figure 1 A schematic diagram of the structure of a heating element provided in an embodiment of the present application;

[0040] Figure 2 for Figure 1 Schematic diagram of the main cross-section structure in;

[0041] Figure 3 A flow chart of a method for preparing a heating element provided in an embodiment of the present application.

[0042] Reference numerals:

[0043] 100: substrate tube; 101: heating chamber;

[0044] 200: heating element;

[0045] 300: temperature measuring element; 310: temperature measuring portion; 320: conductive portion;

[0046] 400: packaging member; 410: first electrode; 420: second electrode;

[0047] 500: Protective parts. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of methods and devices consistent with some aspects of the present application as detailed in the appended claims.

[0049] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0050] As mentioned in the background technology section, in the related art, some heating devices first set the heating resistor on the substrate, and then set the temperature sensor on the heating resistor. This structure increases the design and manufacturing costs, and the process is complicated. In addition, there is an additional contact thermal resistance between the temperature sensor and the internal heating body during actual use, which increases the instability of temperature control. Other heating devices fix the temperature sensor at a specific position, measure the temperature at the fixed position in the form of a temperature probe, and the temperature sensor data is connected to the PCB board of the controller through an additional conductive line. This design requires additional fixing processes such as welding, and the additional conductive line will increase the design complexity and reduce reliability. The separation of the heating and temperature monitoring structures greatly increases the complexity of the equipment and the additional size requirements, and reduces the temperature measurement accuracy.

[0051] In view of the above problems existing in the prior art, the present application provides a heating element, a method for preparing a heating element, and an aerosol generating device. The heating element provided by the present application includes a substrate tube, at least one heating element, at least one temperature measuring element, and at least one packaging element. By setting a heating cavity in the substrate tube, it can be used to place aerosol generating products, etc., by covering the heating element in a first preset area on the outer wall of the substrate tube for heating, by covering the temperature measuring element in a second preset area on the outer wall of the substrate tube for detecting the temperature of the substrate tube, by covering the packaging element on part of the heating element and part of the temperature measuring element, wherein the heating element is used to connect to a power source to supply power to the heating element, and the temperature measuring element is used to connect to a controller to convert the measurement signal on the temperature measuring element into temperature information through the controller, that is, by integrating the heating element, the temperature measuring element, and the packaging element on the substrate tube, a highly integrated element is formed, which has a smaller size and can meet the design requirements of a small-volume portable heater or atomizer, which is more convenient.

[0052] The technical solution of the present application is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0053] First, please refer to Figure 1-Figure 2 As shown, an embodiment of the present application provides a heating element, including a substrate tube 100 , at least one heating element 200 , at least one temperature measuring element 300 and at least one packaging element 400 .

[0054] The heating element 200 covers a first preset area on the outer wall of the substrate tube 100 .

[0055] The temperature measuring element 300 is disposed on a second preset area on the outer wall of the substrate tube 100 .

[0056] The packaging component 400 covers a portion of the heating component 200 and a portion of the temperature measuring component 300 .

[0057] The heating element 200 is used to be connected to a power source, and the temperature measuring element 300 is used to be connected to a controller.

[0058] The heating element in this embodiment can be used in equipment such as portable heaters and atomizers, such as aerosol generating devices, and can meet the requirements of small volume and small size.

[0059] The substrate tube 100 in this embodiment can be made of materials such as quartz glass or ceramics, and can be made into a cylindrical tube, a prismatic tube, etc. according to the shape of the heated object. The substrate tube 100 has a heating chamber 101, and the inner wall of the heating chamber 101 contacts the heated object.

[0060] The heating element 200 in this embodiment can be a heating resistor, etc., which covers a first preset area on the outer wall of the substrate tube 100, that is, the heating element 200 covers a partial area on the outer wall of the substrate tube 100.

[0061] Among them, Figure 1 As shown, the heating element 200 may include a first heating segment, a second heating segment and a third heating segment. The first heating segment and the third heating segment are arranged on both sides of the outer wall of the substrate tube 100 opposite to each other. The second heating segment is connected to the same side ends of the first heating segment and the third heating segment. A reserved area for installing the temperature measuring element 300 is reserved between the first heating segment, the second heating segment and the third heating segment. The cross-sections of the first heating segment, the second heating segment and the third heating segment are roughly U-shaped. In this way, heating can be achieved when voltage is applied to the two open ends of the U-shape.

[0062] The temperature measuring element 300 in this embodiment may be a PTC (Positive Temperature Coefficient) thermistor, etc., which covers the second preset area on the outer wall of the substrate tube 100, that is, the temperature measuring element 300 also covers a part of the outer wall of the substrate tube 100. The temperature measuring element 300 may be close to the heating element 200 to ensure the accuracy of temperature measurement, that is, the outer wall of the substrate tube 100 includes the first preset area and the second preset area, and the first preset area does not overlap with the second preset area.

[0063] It should be noted that the specific size, shape, position, etc. of the first preset area and the second preset area can be determined according to actual needs.

[0064] The packaging component 400 in this embodiment is used to package the heating component 200 and the temperature measuring component 300 on the substrate tube 100 , and can be made of materials such as polyimide or ceramics. The packaging component 400 covers the heating component 200 and the temperature measuring component 300 .

[0065] The heating element 200 may be connected to a power source through electrodes or other conductive components to supply power. Correspondingly, the temperature measuring element 300 may also be connected to a controller through electrodes or other conductive components to transmit electrical signals.

[0066] It can be understood that, compared with the non-integration of the heating component and the temperature sensor, the application of the heating element in the embodiment of the present application, by integrating the heating component 200, the temperature measuring component 300 and the packaging component 400 on the substrate tube 100, forms a highly integrated component with a smaller size, which can meet the design requirements of a small-volume portable heater or atomizer and is more convenient.

[0067] Thus, the heating element provided in the embodiment of the present application includes a substrate tube 100, at least one heating element 200, at least one temperature measuring element 300 and at least one packaging element 400. By setting a heating chamber 101 in the substrate tube 100, it can be used to place an aerosol generating product, etc., by covering the heating element 200 in a first preset area on the outer wall of the substrate tube 100 for heating, by covering the temperature measuring element 300 in a second preset area on the outer wall of the substrate tube 100 for detecting the temperature of the substrate tube 100, and by covering the packaging element 400 in a second preset area on the outer wall of the substrate tube 100 for detecting the temperature of the substrate tube 100. 00 is covered on part of the heating element 200 and part of the temperature measuring element 300, wherein the heating element 200 is used to be connected to a power source to supply power to the heating element 200, and the temperature measuring element 300 is used to be connected to a controller to convert the measurement signal on the temperature measuring element 300 into temperature information through the controller, that is, by integrating the heating element 200, the temperature measuring element 300 and the packaging element 400 on the substrate tube 100, a highly integrated component is formed with a smaller size, which can meet the design requirements of a small-volume portable heater or atomizer and is more convenient.

[0068] In a possible design, the heating element 200 is a metal layer, a metal oxide layer, an alloy layer, or a non-metal oxide layer.

[0069] Specifically, when voltage is applied across the heating element 200, resistive heat can be generated to achieve the heating function of the designated area, and a metal layer, a metal oxide layer, an alloy layer, or a non-metal oxide layer can be formed on the outer wall of the substrate tube 100 through a deposition process.

[0070] The specific material, thickness, etc. of the heating element 200 can be determined according to actual needs and are not excessively restricted in this embodiment.

[0071] In some embodiments, the ratio of the area of ​​the heating element 200 covering the substrate tube 100 to the total peripheral area of ​​the substrate tube 100 is greater than or equal to 60%.

[0072] Such a configuration can make the heating efficiency on the substrate tube 100 higher and the temperature uniformity better. The specific ratio can be determined according to actual needs and is not too limited in this embodiment.

[0073] In some embodiments, the temperature measuring element 300 includes a temperature measuring portion 310 and a conductive portion 320 . The temperature measuring portion 310 is close to the heating element 200 and is surrounded by the heating element 200 .

[0074] The conductive part 320 is connected to the temperature measuring part 310 and is used to be connected to a controller.

[0075] The temperature measuring part 310 is surrounded by the heating element 200 to further ensure the accuracy of temperature measurement, and the temperature measuring part 310 can be deposited or pasted on the substrate tube 100. The conductive part 320 is connected to the temperature measuring part 310 and is used to transmit the measurement signal of the temperature measuring part 310 to the controller, and it can also be deposited or pasted on the substrate tube 100.

[0076] Preferably, the conductive part 320 can form an electrical connection through film technology and micro-connection technology, and can be formed on the substrate tube 100 through a deposition process (such as evaporation or sputtering, etc.).

[0077] Furthermore, in this embodiment, at least a first electrode 410 and a second electrode 420 are disposed in the package 400 , and the first electrode 410 is connected to the heating element 200 and is used to be connected to a power source.

[0078] The second electrode 420 is connected to the conductive part 320 and is used to connect to the controller.

[0079] Specifically, Figure 1 As shown, the first electrode 410 (i.e., the pin) in the package 400 is connected to the heating element 200 and is used to connect to the power supply. The first electrode 410 at least includes a first lead-in portion and a first lead-out portion, and the first lead-in portion and the first lead-out portion correspond to the positive and negative electrodes of the power supply, respectively, to form a loop. The second electrode 420 (i.e., the pin) in the package 400 is connected to the conductive portion 320 and is used to connect to the controller. The second electrode 420 at least includes a second lead-in portion and a second lead-out portion, and the second lead-in portion and the second lead-out portion correspond to two terminals of the detection circuit on the controller, respectively, to form a loop.

[0080] In this way, the detection signal on the temperature measuring part 310 can be transmitted to the second electrode 420 through the conductive part 320 . The number of the conductive parts 320 corresponds to the number of the second electrodes 420 .

[0081] More specifically, in this embodiment, the temperature measuring portion 310 is a metal layer or a metal oxide layer.

[0082] Specifically, the temperature measuring unit 310 can form a metal layer or a metal oxide layer on the outer wall of the substrate tube 100 through a deposition process. In particular, a platinum (Pt) metal layer is used, which has a stable resistance-temperature relationship, and an annealing treatment is used during the preparation process to avoid zero drift in the resistance-temperature relationship.

[0083] Furthermore, in this embodiment, the temperature measuring portion 310 is curved.

[0084] In this way, the length of the temperature measuring part 310 can be controlled within a limited space to meet the temperature measurement requirements. The specific material, shape, thickness, etc. of the temperature measuring part 310 can be determined according to actual needs, and no excessive restrictions are made in this embodiment.

[0085] In some embodiments, the heating element 200 and the temperature measuring element 300 both extend to the end of the substrate tube 100 , and the packaging element 400 is disposed at the end of the substrate tube 100 and covers a portion of the heating element 200 and a portion of the temperature measuring element 300 .

[0086] In this way, a group of heating elements 200, temperature measuring elements 300 and packaging elements 400 can be formed at one end of the substrate tube 100, and a group of heating elements 200, temperature measuring elements 300 and packaging elements 400 can also be formed at the other end of the substrate tube 100, which are used to selectively heat and measure the temperature of different sections of the substrate tube 100.

[0087] In some embodiments, a protective member 500 is further included, and the protective member 500 is at least covered on the heating member 200 and the temperature measuring member 300 .

[0088] With this arrangement, the heating element 200 and the temperature measuring element 300 can be wrapped to provide protection.

[0089] Specifically, in this embodiment, the protective member 500 is a quartz glass layer, a ceramic layer, or a non-metallic oxide layer.

[0090] Among them, the quartz glass layer or ceramic layer or non-metallic oxide layer can be covered on the heating element 200 and the temperature measuring element 300 through a passivation process to form a passivation protective layer with a thickness of about 100nm. In this way, durability and stability can be enhanced, and the internal structure can be avoided or reduced from being affected by the external environment.

[0091] Of course, the protective member 500 may also be replaced by other similar materials, and this embodiment does not impose too many restrictions on this.

[0092] Second, as Figure 3 As shown, the embodiment of the present application further provides a method for preparing a heating element, which is used for the heating element provided in any of the above embodiments, comprising:

[0093] S100 , providing a substrate tube 100 .

[0094] Specifically, the substrate tube 100 may be selected first according to the shape, size, etc. of the heated product.

[0095] S200 , forming a heating element 200 in a first preset area on the outer wall of the substrate tube 100 .

[0096] Specifically, the heating element 200 may be formed in a first preset area on the outer wall of the substrate tube 100 by deposition, bonding, or the like.

[0097] S300 , forming a temperature measuring element 300 in a second preset area on the outer wall of the substrate tube 100 .

[0098] Specifically, the temperature measuring element 300 may be formed in the second preset area on the outer wall of the substrate tube 100 by deposition, bonding, etc., so that the temperature measuring element 300 can be close to the heating element 200 or surrounded by the heating element 200 to ensure the accuracy of temperature measurement.

[0099] S400 , encapsulating a portion of the heating element 200 and a portion of the temperature measuring element 300 to form a package 400 .

[0100] Specifically, the heating element 200 and the temperature measuring element 300 are packaged on the substrate tube 100 to form a package 400, forming an integrated structure and forming protection. The first electrode 410 can be connected to the heating element 200, and the second electrode 420 can be connected to the temperature measuring element 300 to form a pin.

[0101] In this way, the integrated design integrates the heating element 200 and the temperature measuring element 300 into one component, reducing the need for external sensors, reducing equipment complexity and additional size requirements, and improving integration. Through precise temperature measurement and regulation of an external control unit, the integrated heating element can achieve efficient heating and precise temperature control, thereby improving heating efficiency and safety.

[0102] In some embodiments, forming the heating element 200 in the first predetermined area on the outer wall of the substrate tube 100 includes:

[0103] The heating member 200 is formed in a first preset pattern through a deposition process.

[0104] Specifically, the first preset pattern can be projected onto the outer wall of the substrate tube 100 by coating the glue, and the metal or metal oxide or alloy or non-metal oxide can be deposited in the first preset area by evaporation, and the heating element 200 with the first preset pattern can be formed by degumming (or peeling).

[0105] Of course, the above process may also include other steps, such as cleaning, drying, curing, etc., which can be determined according to actual needs and are not excessively limited in this embodiment.

[0106] In some embodiments, forming the temperature measuring element 300 in the second preset area on the outer wall of the substrate tube 100 includes:

[0107] The temperature measuring member 300 is formed according to a second preset pattern through a deposition process.

[0108] Specifically, the second preset pattern can also be projected onto the outer wall of the substrate tube 100 by coating with glue, and the metal or metal oxide can be deposited in the second preset area by sputtering, and the temperature measuring component 300 with the second preset pattern can be formed by debonding (or peeling).

[0109] More specifically, the specific steps of forming the temperature measuring element 300 are as follows:

[0110] 1) Apply glue for the first time on the outer wall of the substrate tube 100, project the pattern corresponding to the temperature measuring part 310 onto the glue, deposit metal or metal oxide in the second preset area by sputtering, and form the temperature measuring part 310 of the second preset pattern by debonding (or peeling).

[0111] 2) Apply glue a second time on the outer wall of the substrate tube 100, project the pattern corresponding to the conductive part 320 onto the glue, deposit the conductive metal in the second preset area by evaporation or sputtering, and form the conductive part 320 of the second preset pattern by degumming (or peeling).

[0112] Of course, the above process may also include other steps, such as cleaning, drying, curing, etc., which can be determined according to actual needs and are not excessively limited in this embodiment.

[0113] In some embodiments, it also includes:

[0114] S500 , forming a protective member 500 at least on the heating member 200 and the temperature measuring member 300 .

[0115] In this way, the heating element 200 and the temperature measuring element 300 can be protected more effectively.

[0116] More specifically, in this embodiment, forming the protective member 500 at least on the heating member 200 and the temperature measuring member 300 includes:

[0117] The protection member 500 is formed through a passivation process.

[0118] Specifically, quartz glass, ceramics or non-metallic oxides can be formed on the heating element 200 and the temperature measuring element 300 through a passivation process, and of course, the outer wall of the substrate tube 100 can also be formed. In addition, the protective element 500 can be a single-layer or multi-layer structure, which can be determined according to actual needs and is not specifically limited in this embodiment.

[0119] In a third aspect, an embodiment of the present application further provides an aerosol generating device, comprising a device body and a heating element disposed on the device body, wherein the heating element is the heating element provided in any of the above embodiments.

[0120] Alternatively, the heating element is obtained by the method for preparing the heating element provided in any of the above embodiments.

[0121] Among them, the structure of the heating element has been described in detail in the above embodiments, and will not be repeated here.

[0122] Exemplarily, the heating element can be disposed in the body of the aerosol generating device, and the aerosol generating product is placed in the substrate tube 100 , the heating element 200 can heat it, and the temperature measuring element 300 can monitor the temperature of the substrate tube 100 in real time.

[0123] It can be understood that the aerosol generating device provided in the embodiment of the present application, by configuring a heating element, includes a substrate tube 100, at least one heating element 200, at least one temperature measuring element 300 and at least one packaging element 400, and by providing a heating chamber 101 in the substrate tube 100, it can be used to place aerosol generating products, etc., by covering the heating element 200 in a first preset area on the outer wall of the substrate tube 100 for heating, and by covering the temperature measuring element 300 in a second preset area on the outer wall of the substrate tube 100 for detecting the temperature of the substrate tube 100. , by covering the packaging component 400 on part of the heating component 200 and part of the temperature measuring component 300, wherein the heating component 200 is used to be connected to a power source to supply power to the heating component 200, and the temperature measuring component 300 is used to be connected to a controller to convert the measurement signal on the temperature measuring component 300 into temperature information through the controller, that is, by integrating the heating component 200, the temperature measuring component 300 and the packaging component 400 on the substrate tube 100, a highly integrated component is formed with a smaller size, which can meet the design requirements of a small-volume portable heater or atomizer, and is more convenient.

[0124] In addition, multiple temperature measuring components 300 may be arranged in different areas or even between different layers on the substrate tube 100 in the heating element to achieve multi-point stereoscopic monitoring of the temperature field inside the substrate tube 100 and provide more detailed temperature distribution data for temperature monitoring.

[0125] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the claims.

[0126] It should be understood that the present application is not limited to the precise structures described above and shown in the appended drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A heating element, characterized in that: include: A substrate tube (100); At least one heating element (200), the heating element (200) covering a first preset area on the outer wall of the substrate tube (100); At least one temperature measuring element (300), the temperature measuring element (300) being arranged to cover a second preset area on the outer wall of the substrate tube (100); At least one packaging component (400), the packaging component (400) covering a portion of the heating component (200) and a portion of the temperature measuring component (300); Wherein, the heating element (200) is used to be connected to a power source, and the temperature measuring element (300) is used to be connected to a controller.

2. The heating element according to claim 1, characterized in that The heating element (200) is a metal layer, a metal oxide layer, an alloy layer, or a non-metal oxide layer.

3. The heating element according to claim 1, characterized in that The ratio of the area of ​​the heating element (200) covering the substrate tube (100) to the total area of ​​the outer circumference of the substrate tube (100) is greater than or equal to 60%.

4. The heating element according to claim 1, characterized in that The temperature measuring element (300) comprises a temperature measuring portion (310) and a conductive portion (320); the temperature measuring portion (310) is close to the heating element (200) and is surrounded by the heating element (200); The conductive part (320) is connected to the temperature measuring part (310), and is used to be connected to the controller.

5. The heating element according to claim 4, characterized in that At least a first electrode (410) and a second electrode (420) are provided in the package (400); the first electrode (410) is connected to the heating element (200) and is used to be connected to the power source; The second electrode (420) is connected to the conductive part (320) and is used to be connected to the controller.

6. The heating element according to claim 4, characterized in that The temperature measuring part (310) is a metal layer or a metal oxide layer.

7. The heating element according to claim 4, characterized in that The temperature measuring portion (310) is curved.

8. The heating element according to claim 1, characterized in that The heating element (200) and the temperature measuring element (300) both extend to the end of the substrate tube (100); the packaging element (400) is arranged at the end of the substrate tube (100) and covers part of the heating element (200) and part of the temperature measuring element (300).

9. The heating element according to any one of claims 1 to 8, characterized in that It also comprises a protective element (500), wherein the protective element (500) is at least covered on the heating element (200) and the temperature measuring element (300).

10. The heating element according to claim 9, characterized in that The protective element (500) is a quartz glass layer, a ceramic layer, or a non-metallic oxide layer.

11. A method for preparing a heating element, characterized in that: include: Providing a substrate tube (100); forming a heating element (200) in a first preset area on the outer wall of the substrate tube (100); A temperature measuring element (300) is formed in a second preset area on the outer wall of the substrate tube (100); Part of the heating element (200) and part of the temperature measuring element (300) are packaged to form a package (400).

12. The method for preparing a heating element according to claim 11, characterized in that: The forming of a heating element (200) in a first preset area on the outer wall of the substrate tube (100) comprises: The heating element (200) is formed according to a first preset pattern through a deposition process.

13. The method for preparing a heating element according to claim 11, characterized in that: The forming of the temperature measuring element (300) in the second preset area on the outer wall of the substrate tube (100) comprises: The temperature measuring element (300) is formed according to a second preset pattern through a deposition process.

14. The method for preparing a heating element according to any one of claims 11 to 13, characterized in that: Also includes: A protective element (500) is formed at least on the heating element (200) and the temperature measuring element (300).

15. The method for preparing a heating element according to claim 14, characterized in that: The step of forming a protective element (500) at least on the heating element (200) and the temperature measuring element (300) comprises: The protection member (500) is formed by a passivation process.

16. An aerosol generating device, characterized in that: It comprises a device body and a heating element arranged on the device body, wherein the heating element is the heating element according to claims 1 to 10; Alternatively, the heating element is obtained by the method for preparing the heating element according to claims 11 to 15.

Images