Heating element and heating non-combustion appliance

By placing the heating wire inside a capillary tube for heat transfer via thermal radiation, the problems of long preheating time and scorching in existing technologies are solved, achieving rapid preheating and stable heating effects.

CN224038505UActive Publication Date: 2026-03-27SHENZHEN GEEKVAPE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing heating wires of non-combustible heating appliances are in contact with the ceramic shell, which leads to heat conduction and results in a long preheating time for the aerosol generation matrix, making it easy to scorch.

Method used

The heating wire is placed inside the capillary tube, and heat is mainly transferred by thermal radiation to avoid heat conduction. A sealed cavity or rare gas is used to fill the cavity to improve thermal efficiency and stability.

Benefits of technology

Rapid preheating of the aerosol generation matrix reduces the risk of scorching and improves the ease of assembly and service life of the heating element.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a heating body and a heating non-combustion appliance, and belongs to the technical field of heating non-combustion appliances, the heating body comprises a supporting shell, a heating core and a fixing structure, a containing cavity is formed in the supporting shell, the heating core is located in the containing cavity, and the heating core comprises a heating wire and a capillary tube part; the heating wire is located in the capillary tube piece, the two ends of the heating wire penetrate out of the corresponding ends of the capillary tube piece respectively, and the fixing structure is used for fixing the capillary tube piece in the containing cavity. According to the heating body, the situation that in the prior art, due to the fact that heat conduction exists when the heating wire makes contact with the ceramic shell, heat radiated by the heating wire to the outside of the ceramic shell is little at the beginning is avoided, the heating wire can radiate much heat to the outside of the supporting shell when powered on, and preheating of the aerosol generating matrix can be rapidly achieved; and the time for preheating the aerosol generating substrate is shortened.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of heat-not-burn appliances, and particularly relates to a heating element and a heat-not-burn appliance. BACKGROUND

[0002] The heat-not-burn appliance mainly heats an aerosol generating substrate in a heat-not-burn manner to make the aerosol generating substrate generate an aerosol. The heating element of some existing heat-not-burn appliances includes a heating wire and a ceramic shell. Since the heating wire is distributed on the inner side surface of the ceramic shell, the preheating time of the aerosol generating substrate is relatively long. SUMMARY

[0003] The purpose of the embodiments of the application is to provide a heating element and a heat-not-burn appliance to solve the technical problem of the relatively long preheating time of the aerosol generating substrate of some existing heat-not-burn appliances.

[0004] To achieve the above purpose, the technical solution adopted by the application is as follows:

[0005] The first aspect of the application provides a heating element, comprising:

[0006] a support shell, an accommodating cavity being formed in the support shell;

[0007] a heating core located in the accommodating cavity, the heating core including a heating wire and a capillary piece, the heating wire being located in the capillary piece and the two ends of the heating wire respectively penetrating out of the corresponding end portions of the capillary piece;

[0008] a fixing structure for fixing the capillary piece in the accommodating cavity.

[0009] In an implementation manner, the two ends of the capillary piece are sealed to form a sealed cavity in the capillary piece.

[0010] In an implementation manner, the sealed cavity is a vacuum cavity or a low-pressure cavity, or the sealed cavity is filled with a rare gas.

[0011] In an implementation manner, the end portion of the capillary piece is sealed by heating and melting, or the end portion of the capillary piece is sealed by hot-pressing.

[0012] In an implementation manner, the fixing structure is sleeved on the outer side surface of the capillary piece, and the fixing structure is extruded between the capillary piece and the inner side surface of the support shell.

[0013] In an implementation, the support shell has an open end and a pointed end, the heating core is inserted into the support shell from the open end, and the fixing structure is close to the open end of the support shell.

[0014] In an implementation, the fixing structure is made of ceramic cotton, aerogel or temperature-resistant plastic.

[0015] In an implementation, the heating wire is an iron-nickel alloy heating wire, a tungsten heating wire, a titanium heating wire, a carbon wire or a nickel-chromium alloy heating wire.

[0016] And / or, the capillary member is a glass capillary tube.

[0017] And / or, the coefficient of thermal expansion of the heating wire matches the coefficient of thermal expansion of the capillary member.

[0018] In an implementation, the support shell is made of ceramic material.

[0019] The second aspect of the application provides a heating non-combustion appliance including the heating body described in any of the above solutions.

[0020] The application has the following beneficial effects: in the application, the heating wire is located in the capillary member, the heating wire is not attached to the inner side of the support shell, and the heating wire mainly radiates heat when powered on. Specifically, if the heating non-combustion appliance uses the heating body provided in the application to preheat the aerosol generating substrate, the temperature of the heating wire rises when powered on, and the heat is radiated outward in the form of radiation, avoiding the situation in the prior art that the heating wire has less heat radiation to the outside of the ceramic shell when it first starts to radiate heat due to the heat conduction caused by the contact between the heating wire and the ceramic shell. In the application, the heating wire can radiate more heat to the outside of the support shell when powered on, which is beneficial to quickly preheat the aerosol generating substrate and reduce the time for preheating the aerosol generating substrate. In addition, since the heating wire is located in the capillary member and is not attached to the inner side of the support shell, the ceramic shell is less likely to have a temperature that is too high when the temperature of the heating wire is high, thereby reducing the occurrence of the situation that the heating non-combustion appliance is scorched. In the application, the heating wire is arranged in the capillary member, which not only protects the heating wire, but also makes it easier for the capillary member to be supported by the fixing structure inside the support shell, facilitating the assembly of the heating body. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 A cross-sectional structure of a heating body provided for an embodiment of the present application is shown in the figure;

[0023] Figure 2 A structure diagram of a heating core provided for an embodiment of the present application is shown in the figure;

[0024] Figure 3 Another structure diagram of a heating core provided for an embodiment of the present application is shown in the figure;

[0025] Figure 4 A process flow chart of preparing a heating body provided for an embodiment of the present application is shown in the figure.

[0026] In the figure, each reference sign represents:

[0027] 1 - heating body;

[0028] 11 - support shell; 12 - heating core; 13 - fixing structure; 14 - lead wire;

[0029] 111 - accommodating cavity; 112 - opening; 113 - tip;

[0030] 121 - heating wire; 122 - capillary element;

[0031] 1211 - main body segment; 1212 - end segment;

[0032] 1221 - sealing cavity. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings. The embodiments described by reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0034] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0035] In order to facilitate the clear description of the technical solutions of the present application, the terms "first", "second" and the like are used to distinguish the same items or similar items with basically the same function and effect. Those skilled in the art can understand that the terms "first", "second" and the like do not limit the quantity and execution order, and the terms "first", "second" and the like do not necessarily mean different.

[0036] In this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0037] In this application, "and / or" is only a description of the association relationship between the associated objects, which means that there can be three relationships; for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0038] It should be noted that in this application, the words "in an embodiment", "exemplarily", "for example" and the like are used to indicate as an example, illustration or description. Any embodiment or design scheme described as "in an embodiment", "exemplarily", "for example" in this application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of "in an embodiment", "exemplarily", "for example" and the like is intended to present the relevant concept in a specific way.

[0039] Please refer to Figure 1 , Figure 1 The cross-sectional schematic view of the heating body 1 provided in an embodiment of the present application.

[0040] An embodiment of the present application provides a heating body 1, please refer to Figure 1 , the heating body 1 comprises a supporting shell 11, a heating core 12 and a fixing structure 13.

[0041] Please refer to Figure 1 , the supporting shell 11 is formed with a containing cavity 111 in the inside, the heating core 12 is located in the containing cavity 111 and the heating core 12 does not contact with the inner side of the supporting shell 11, and the supporting shell 11 can protect the heating core 12. In an example, the supporting shell 11 is a ceramic material.

[0042] Please refer to Figure 1The heating core 12 comprises a heating wire 121 and a capillary tube 122, the heating wire 121 is located in the capillary tube 122, and two ends of the heating wire 121 respectively pass through the capillary tube 122, and the two ends of the heating wire 121 are used for being connected with the lead wire 14, and the lead wire 14 is connected with a power supply to supply power to the heating wire 121. After the heating wire 121 is powered on, the heating wire 121 converts electric energy into heat energy, so that the temperature of the heating wire 121 rises, and as the temperature of the heating wire 121 rises, the heating wire 121 radiates heat, thereby producing a heating effect on the surrounding objects.

[0043] In one example, the inner side surface of the capillary tube 122 does not contact the heating wire 121; in other examples, the inner side surface of the capillary tube 122 contacts the heating wire 121.

[0044] In one example, the diameter of the heating wire 121 ranges from 0.1 mm to 2.0 mm.

[0045] In one example, the diameter of the capillary tube 122 ranges from 0.5 mm to 10 mm.

[0046] In one example, the capillary tube 122 is a capillary glass tube.

[0047] Please refer to Figure 1 The fixing structure 13 is used for fixing the capillary tube 122 in the accommodating cavity 111, thereby fixing the heating wire 121 in the support shell 11.

[0048] In the prior art, the heating wire is arranged on the inner side surface of the ceramic shell, and after the heating wire is powered on, the temperature of the heating wire rises. Since the heating wire contacts the ceramic shell, heat conduction exists between the heating wire and the ceramic shell, which affects the heat radiation of the heating wire.

[0049] When the prior art heating body is applied to a heat-not-burn device, the following problems exist: when the heat-not-burn device is used to heat an aerosol generating substrate, the aerosol generating substrate needs to be preheated. For a heat-not-burn device comprising the prior art heating body, when the heating wire is powered on to preheat the aerosol generating substrate, since heat conduction exists between the heating wire and the ceramic shell, i.e., part of the heat generated by the heating wire is absorbed by the ceramic shell, the time for preheating the aerosol generating substrate is increased, which affects the customer experience. In addition, for a heat-not-burn device comprising the prior art heating body, to a certain extent, the device is also prone to scorching. When the heat-not-burn device is used, if the temperature of the ceramic shell is too high, scorching is prone to occur. Since the heating wire directly contacts the ceramic shell, the ceramic shell is prone to have a high temperature.

[0050] In the embodiment of the present application, the heating wire 121 is located in the capillary tube 122, and the heating wire 121 is not attached to the inner side of the support shell 11. When the heating wire 121 is powered, the heating wire 121 mainly radiates heat. Specifically, when the heating element 1 provided by the heating non-combustion appliance in the embodiment of the present application is used to preheat the aerosol generating substrate, the temperature of the heating wire 121 rises when powered, and the heat is radiated outward in the form of radiation, avoiding the heat conduction caused by the contact between the heating wire and the ceramic shell in the prior art, which results in less heat radiation from the heating wire to the ceramic shell at the beginning. The embodiment of the present application can radiate more heat outward from the support shell 11 when the heating wire 121 is powered, which is beneficial to quickly preheat the aerosol generating substrate and reduce the preheating time of the aerosol generating substrate. In addition, since the heating wire 121 is located in the capillary tube 122 and is not attached to the inner side of the support shell 11, when the temperature of the heating wire 121 is high, the ceramic shell is less likely to have a temperature that is too high, thereby reducing the occurrence of the roasting of the heating non-combustion appliance.

[0051] In the embodiment of the present application, the heating wire 121 is arranged in the capillary tube 122, which not only has a protective effect on the heating wire 121, but also makes it easier for the capillary tube 122 to be supported inside the support shell 11 by the fixing structure 13 relative to the heating wire 121, facilitating the assembly of the heating element 1.

[0052] Please refer to Figures 2-3 , Figure 2 for the structural schematic diagram of the heating core 12 provided by the embodiment of the present application, Figure 3 for another structural schematic diagram of the heating core 12 provided by the embodiment of the present application.

[0053] In one embodiment, the two ends of the capillary tube 122 are sealed to form a sealed cavity 1221 inside the capillary tube 122. Please refer to Figure 2 and Figure 3 for the sealed cavity 1221.

[0054] Regarding the sealing of the ends of the capillary tube 122, in one example, the diameter of the end of the capillary tube 122 is reduced and connected to the heating wire 121, thereby forming a sealed cavity 1221 inside the capillary tube 122; in other examples, a sealing material is used to seal the two ends of the capillary tube 122, thereby forming a sealed cavity 1221 inside the capillary tube 122. For example, the sealing material can be a glass material that is fixed after melting, or a colloid.

[0055] The manufacturing process of the heating core 12 can be as follows: first, the heating wire 121 is inserted into the capillary tube 122 with both ends not sealed, and after the heating wire 121 is inserted into place, i.e., both ends of the heating wire 121 pass through the corresponding end of the capillary tube 122, the two ends of the capillary tube 122 are sealed to form a sealed cavity 1221 inside the capillary tube 122.

[0056] Regarding the heating wire 121, in an example, referring to Figure 2 , the heating wire 121 is linear as a whole.

[0057] Regarding the heating wire 121, in an example, referring to Figure 3 , the heating wire 121 includes a main body segment 1211 and an end segment 1212, the two ends of the main body segment 1211 are respectively provided with the end segment 1212, the end segment 1212 passes out of the capillary tube 122 from the sealing position on the capillary tube 122, and the end of the end segment 1212 away from the main body segment 1211 is connected with the lead wire 14, the two end segments 1212 are linear, and the main body segment 1211 is non-linear.

[0058] In an example, the main body segment 1211 is thread-shaped or wave-shaped to increase the effective length of the heating wire 121.

[0059] In the embodiment of the present application, the sealing of the two ends of the capillary tube 122 can fix the heating wire 121 on the capillary tube 122, and at the same time, the heating wire 121 is arranged in the sealed cavity 1221 of the capillary tube 122 in most areas, which can reduce the heat carried away by the airflow of the heating wire 121, thereby facilitating the efficient radiation of the heating body 1.

[0060] In an embodiment, the sealed cavity 1221 is a vacuum cavity or a low-pressure cavity; in other embodiments, the sealed cavity 1221 is filled with a rare gas.

[0061] When the sealed cavity 1221 is a vacuum cavity, in an example, the manufacturing of the heating core 12 is carried out in a vacuum environment so as to form the sealed cavity 1221 of the capillary tube 122 into a vacuum cavity; in other examples, the manufacturing of the heating core 12 is not carried out in a vacuum environment, and at this time, one end of the capillary tube 122 can be sealed first, and the other end can be subjected to vacuumizing operation, and after the vacuumizing operation is completed, the other end of the capillary tube 122 is sealed.

[0062] In a vacuum environment, there is no medium such as air, and the heat dissipation paths of heat conduction and heat convection are greatly weakened, and the heat generated by the heating wire 121 is mainly transmitted in the form of heat radiation, thereby improving the heating efficiency of the heating wire 121 and prolonging the service life of the heating wire 121.

[0063] The sealed cavity 1221 is a low-pressure cavity, which means that the sealed cavity 1221 is internally provided with air, but the amount of air is small, so that the sealed cavity 1221 forms a low-pressure cavity. When the sealed cavity 1221 is a low-pressure cavity, it is also beneficial to improve the heating efficiency of the heating core 12.

[0064] When the sealed cavity 1221 is filled with a rare gas, in one example, the manufacturing of the heating core 12 is carried out in a rare gas environment, so that the sealed cavity 1221 of the capillary member 122 is filled with a rare gas; in other examples, the manufacturing of the heating core 12 is not carried out in a rare gas environment, at which time one end of the capillary member 122 can be sealed first, and the other end is filled with a rare gas operation, and after completion, the other end of the capillary member 122 is sealed.

[0065] In the embodiments of the present application, by setting the sealed cavity 1221 as a vacuum cavity or a low-pressure cavity or filling the sealed cavity 1221 with a rare gas, the heating efficiency of the heating core 12 can be improved, the service life of the heating core 12 can be prolonged, and the safety can be improved.

[0066] In one embodiment, the end of the capillary member 122 is formed by heating and melting to form a seal; in other embodiments, the end of the capillary member 122 is formed by hot pressing to form a seal.

[0067] Regarding the end of the capillary member 122 using a heating and melting method to form a seal, the end of the capillary member 122 is heated so that the end of the capillary is in a molten state, the molten end flows and wraps the heating wire 121, and after solidification, a seal is formed.

[0068] In one example, when the end face of the capillary member 122 is heated to form a molten state, the end face of the capillary member 122 can be heated by flame, laser or other heat supply methods.

[0069] In one example, both ends of the capillary member 122 are formed by heating and melting to form a seal.

[0070] Regarding the end of the capillary member 122 using a hot pressing method to form a seal, the end of the capillary member 122 is heated, but the end of the capillary member 122 is not heated to a molten state, and then the heated end of the capillary member 122 is pressed, so that the end of the capillary member 122 is deformed to form a seal.

[0071] In one example, when the end face of the capillary member 122 is heated to form a seal, the end face of the capillary member 122 can be heated by flame, laser or infrared heat source or other heat supply methods.

[0072] In one example, both ends of the capillary member 122 are formed by hot pressing to form a seal.

[0073] Please refer to Figure 4 , Figure 4 The flow chart for preparing the heat-generating body 1 provided in the embodiments of the present application, i.e. the process for preparing the heat-generating body 1 provided in the embodiments of the present application, is as follows:

[0074] Step one: inserting the heat-generating wire 121 into the capillary member 122, wherein the capillary member 122 is a glass tube, and the two ends of the heat-generating wire 121 extend out of the corresponding ends of the capillary member 122.

[0075] Step two: heat-pressing and fixing the heat-generating wire 121 at the two ends of the capillary member 122 in a vacuum environment or a rare gas environment to complete the sealing of the two ends of the capillary member 122.

[0076] Step three: embedding and fixing the above-mentioned semi-finished product in the support shell 11 to prepare the finished product of the heat-generating body 1.

[0077] In the embodiments of the present application, the end sealing of the capillary member 122 is performed by using the heating and melting method or the heat-pressing and crimping method, which has high sealing efficiency and can improve the sealing effect, thereby ensuring that a sealed cavity 1221 is formed inside the capillary member 122.

[0078] In one embodiment, one end of the support shell 11 is the opening 112, and the other end is the pointed end 113. The heat-generating core 12 is inserted into the support shell 11 from the opening 112, and the fixing structure 13 is close to the opening 112 of the support shell 11.

[0079] Please refer to Figure 2 , which shows that one end of the support shell 11 is the pointed end 113, and the fixing structure 13 is located on the side away from the pointed end 113 of the support shell 11.

[0080] In one example, the support shell 11 is in the shape of a cylinder as a whole.

[0081] In one example, there is a gap between the inner side surface of the support shell 11 and the inner side surface of the capillary member 122.

[0082] In one example, there is a gap between the inner side surface of the capillary member 122 and the inner side surface of the heat-generating wire 121 except for the position where the capillary member 122 is sealed.

[0083] In one example, please refer to Figure 1 and Figure 2 , one end of the capillary member 122 is in the shape of a pointed end, and the other end is not in the shape of a pointed end. In other examples, please refer to Figure 3 , both ends of the capillary member 122 are not in the shape of a pointed end.

[0084] In one example, the material of the support shell 11 is zirconia ceramic or zirconia toughened alumina ceramic or sapphire.

[0085] In the embodiment, the fixing structure 13 is arranged close to the opening 112 of the support shell 11, so that the heating core 12 can be conveniently assembled in the support shell 11.

[0086] In an embodiment, the support shell 11 is provided with a connecting structure for connecting with other components of the heating non-combustion appliance.

[0087] In an example, the connecting structure is connected to the support shell 11 in the way of injection molding.

[0088] In an example, the connecting structure is a buckle structure.

[0089] In an embodiment, referring to Figure 1 , the fixing structure 13 is sleeved on the outer side of the capillary tube 122, and the fixing structure 13 is extruded between the capillary tube 122 and the inner side of the support shell 11.

[0090] In an example, the fixing structure 13 is first sleeved on the capillary tube 122 and adhered to the capillary tube 122, and then the heating core 12 is inserted into the support shell 11 from one end of the support shell 11, and the fixing structure 13 is deformed and extruded between the capillary tube 122 and the inner side of the support shell 11, so as to fix the heating core 12 in the support shell 11.

[0091] In an example, the material of the fixing structure 13 is ceramic cotton or aerogel or temperature-resistant plastic.

[0092] Ceramic cotton is a common high-performance thermal insulation material, which is generally made of kaolin, alumina, silica and the like as main raw materials through high-temperature melting, fiberization and the like, and has the advantages of high temperature resistance and low thermal conductivity.

[0093] Aerogel is a nano-porous solid material formed by replacing the liquid phase in the gel with gas through sol-gel method and certain drying method, and has the advantages of high porosity and low thermal conductivity.

[0094] In the embodiment, the fixing structure 13 is extruded between the capillary tube 122 and the inner side of the support shell 11, so as to fix the heating core 12 in the support shell 11, and the way of fixing the heating core 12 in the support shell 11 is simple and convenient for preparation of the heating body 1.

[0095] In an embodiment, the thermal expansion coefficient of the heating wire 121 matches the thermal expansion coefficient of the capillary tube 122.

[0096] The thermal expansion coefficient is a physical quantity representing the thermal expansion property of an object. In the embodiments of the present application, the thermal expansion coefficient of the heating wire 121 matches that of the capillary 122, which means that the thermal expansion coefficient of the heating wire 121 is close to that of the capillary 122.

[0097] In the embodiments of the present application, the thermal expansion coefficient of the heating wire 121 matches that of the capillary 122, so that the difference between the thermal expansion coefficients of the two does not cause the seal of the capillary 122 to break, i.e., the thermal expansion coefficient of the heating wire 121 matches that of the capillary 122, which helps to ensure that a sealed cavity 1221 is formed inside the capillary 122.

[0098] In one embodiment, the heating wire 121 is an iron-nickel alloy heating wire, or a tungsten heating wire, or a titanium heating wire, or a carbon wire, or a nickel-chromium alloy heating wire.

[0099] In one example, the heating wire 121 is an iron-nickel alloy heating wire, and the capillary 122 is made of borosilicate glass or borosilicate glass containing Fe2O3. The capillary 122 made of borosilicate glass can be sealed at the end by flame, and the capillary 122 made of borosilicate glass containing Fe2O3 can be sealed at the end by infrared heat source or flame.

[0100] In one example, the heating wire 121 is an iron-nickel alloy heating wire, and the iron content of the heating wire 121 is 15%-65%, preferably 60%. The thermal expansion coefficient of the heating wire 121 is 10.2-11.8×10 -6 / ℃; the capillary 122 is made of borosilicate glass, and the thermal expansion coefficient of the borosilicate glass is 10.0-11.5×10 -6 / ℃, or the capillary 122 is made of borosilicate glass containing Fe2O3, and the thermal expansion coefficient of the borosilicate glass containing Fe2O3 is 8.9-11.5×10 -6 / ℃.

[0101] In one example, the heating wire 121 is a tungsten heating wire, and the capillary 122 is made of high borosilicate glass (such as containing 15-25wt% boron trioxide, 65-70% silicon dioxide, and a small amount of alkali metal and aluminum trioxide) and can be sealed at the end by flame, or the capillary 122 is made of borosilicate glass and can be sealed at the end by flame.

[0102] In one example, the heating wire 121 is a tungsten heating wire, and the thermal expansion coefficient of the heating wire 121 is 4.3-4.4×10 -6 / ℃; the material of the capillary member 122 is high borosilicate glass and the thermal expansion coefficient of the high borosilicate glass is 3.8-3.9 x 10 -6 / ℃, or the material of the capillary member 122 is borosilicate glass and the thermal expansion coefficient of the borosilicate glass is 3.9-4.1 x 10 -6 / ℃.

[0103] The heating non-combustion appliance provided by the embodiments of the present application comprises the heating body 1 provided by any of the embodiments described above, and the structure of the heating body 1 has been specifically described above and will not be repeated here.

[0104] The heating non-combustion appliance provided by the embodiments of the present application further comprises a power supply and a control circuit board. The power supply is connected to the heating body 1 and is used to supply power to the heating body 1. The power supply is also connected to the control circuit board, and the control circuit board can control the power supply of the heating body 1 by the power supply.

[0105] In an example, the heating body 1 can be temperature-controlled by the TCR value of the heating wire 121 in the heating body 1, wherein the TCR is used to reflect the degree of influence of the temperature on the resistance of the material.

[0106] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heat generating body, characterized by comprising: The application relates to a heating body. The application relates to a heating body. The application relates to a heating body. The application relates to a heating body.

2. The heat generating body according to claim 1, wherein The application relates to a heating body.

3. The heat generating body according to claim 2, wherein The application relates to a heating body.

4. The heat generating body according to claim 2, wherein The application relates to a heating body.

5. The heat generating body according to any one of claims 1 to 4, wherein The application relates to a heating body.

6. The heat generating body according to claim 5, wherein The application relates to a heating body.

7. The heat generating body according to claim 5, wherein The application relates to a heating body.

8. The heat generating body according to any one of claims 1 to 4, wherein The application relates to a heating body. The application relates to a heating body. The application relates to a heating body.

9. The heat generating body according to any one of claims 1 to 4, wherein The application relates to a heating body.

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