An e-cigarette heating component

Abstract

An electronic cigarette heating assembly comprises a housing and an electric heating assembly. The housing is made of steel, one end of which is mounted on the smoking device body and has a cavity therein, within which the electric heating assembly is sheathed. The electric heating assembly comprises a heating wire, an insulating bracket, and a pin electrode. The heating wire is pure platinum and wound around the insulating bracket. Two pin electrodes are provided and fixedly connected to the insulating bracket. The two pin electrodes are electrically connected to the ends of the heating wire, respectively. One end of the pin electrode extends out of the cavity and is electrically connected to a control unit. The steel housing is tough and resistant to breakage, while the pure platinum heating wire is stable, resistant to oxidation, and easy to temperature control, thereby increasing the service life of the electronic cigarette heating assembly.

Description

Technical Field

[0001] The present invention relates to the field of smoking devices, and particularly to an e-cigarette heating component. Background Art

[0002] An e-cigarette is a device that heats an atomization medium such as tobacco through a heating element at a high temperature to produce smoke. In existing e-cigarettes, the heating element is generally printed and sintered on the surface of ceramics, so that the heating element is embedded in a ceramic shell, and the ceramic shell is inserted into a cigarette to heat and bake the tobacco of the cigarette until the tobacco produces smoke under high-temperature baking. The ceramic shell is brittle and is easily broken after long-term use, affecting the service life of the e-cigarette. The existing heating elements of e-cigarettes generally use nickel wires for heating, but when the temperature of the nickel wire exceeds 300 degrees Celsius, it is extremely easy to oxidize, thereby affecting the heating performance. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] In order to solve the above problems, an e-cigarette heating component provided by the present invention has a stable heating effect, is easy to control the temperature, and is not easily broken.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the present invention provides the following technical solution: an e-cigarette heating component is installed on a smoking device body and is used for heating tobacco. A control unit is provided in the smoking device body. The e-cigarette heating component includes a shell and an electrothermal component; the shell is made of steel, one end of the shell is installed on the smoking device body, and a cavity is provided inside it. The electrothermal component is sleeved in the cavity; the electrothermal component includes a heating wire, an insulating bracket, and pin electrodes; the heating wire is a pure platinum wire, and the heating wire is wound around the insulating bracket; there are two pin electrodes, and both are fixedly connected to the insulating bracket. The two pin electrodes are respectively electrically connected to the wire ends at both ends of the heating wire, and one end of the pin electrode extends out of the cavity and is electrically connected to the control unit.

[0007] Preferably, the insulating bracket is a mica sheet.

[0008] Preferably, the pin electrodes are made of copper-nickel alloy.

[0009] Preferably, the shell is provided with an insulating coating on the inner side of the cavity.

[0010] Preferably, the outer side of the shell is provided with a glass glaze coating.

[0011] Preferably, a high-temperature resistant ceramic glue is filled between the shell and the electrothermal component.

[0012] Preferably, the end of the shell away from the smoking device body is in a tapered shape.

[0013] Advantageous Effects

[0014] The beneficial effects of the present invention are as follows: An e-cigarette heating component includes a housing and an electrothermal component; the housing is made of steel, one end of the housing is installed on the cigarette device body, and a cavity is provided therein, and the electrothermal component is sleeved in the cavity; the electrothermal component includes a heating wire, an insulating bracket, and pin electrodes; the heating wire is a pure platinum wire, and the heating wire is wound around the insulating bracket; there are two pin electrodes, both of which are fixedly connected to the insulating bracket, and the two pin electrodes are respectively electrically connected to the wire ends at both ends of the heating wire, and one end of the pin electrode extends out of the cavity and is electrically connected to the control unit. Among them, the housing made of steel has good toughness and is not easy to break, and the pure platinum wire heating wire has good stability and is not easy to oxidize, and is easy to control the temperature, thereby increasing the service life of the e-cigarette heating component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0016] Figure 1 Shows a schematic diagram of the present invention installed on the cigarette device body;

[0017] Figure 2 Shows a schematic diagram of the overall structure of an embodiment of the present invention;

[0018] Figure 3 Shows an exploded assembly diagram of the present invention;

[0019] Figure 4 Shows a schematic diagram of the structure of the electrothermal component;

[0020] In the figure: 1 housing, 2 electrothermal component, 20 heating wire, 21 insulating bracket, 22 pin electrode, a cigarette device body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Refer to the attached Figures 1 to 4 , an e-cigarette heating component, is installed on the cigarette device body a and is used to heat tobacco. A control unit is provided in the cigarette device body a. The e-cigarette heating component includes a housing 1 and an electrothermal component 2; the housing 1 is made of steel, one end of the housing 1 is installed on the cigarette device body a, and a cavity is provided therein, and the electrothermal component 2 is sleeved in the cavity;

[0023] The electrothermal component 2 includes a heating wire 20, an insulating bracket 21, and pin electrodes 22; the heating wire 20 is a pure platinum wire, and the heating wire 20 is wound around the insulating bracket 21; there are two pin electrodes 22, and both are fixedly connected to the insulating bracket 21. The two pin electrodes 22 are respectively electrically connected to the wire ends at both ends of the heating wire 20, and one end of the pin electrode 22 extends out of the cavity and is electrically connected to the control unit. In this embodiment, the two pin electrodes 22 are welded to the insulating bracket 21.

[0024] Among them, due to the high strength of the steel and better toughness than ceramic materials, the housing 1 made of steel is not easily broken and has good heat conduction performance. In this embodiment, the housing 1 is formed by welding two identical stainless steels facing each other.

[0025] It should be noted that in the present invention, a storage battery is also provided in the smoking device body a, the control unit is electrically connected to the storage battery, and the output voltage of the control unit is relatively constant. It is known that when the voltage remains unchanged, the smaller the energized resistance, the greater the heat generated, and it can be calculated according to the following formula:

[0026]

[0027]

[0028] Where Q is the calorific value, P is the heating power, U is the voltage, R is the resistance value, and t is the energization time;

[0029] The resistance values of most materials change with temperature. In the present invention, the heating wire 20 uses a conductive material with a resistance temperature coefficient approaching linear growth, such as pure platinum wire, platinum group metals such as palladium, and in this embodiment, the heating wire 20 is preferably a pure platinum wire. The resistance temperature coefficient approaching linear growth means that as time goes by, its temperature rises, and then the resistance value increases linearly. Therefore, when the temperature of the heating wire 20 rises, the resistance value becomes larger, its power decreases accordingly, and the heating rate continues to decline. It is easier to control the temperature through the control unit; for the existing nickel heating wire, oxidation will occur when the temperature is higher than 300 degrees Celsius, while the pure platinum wire starts to oxidize only when the temperature is higher than 600 degrees Celsius. Therefore, the pure platinum wire heating wire is more stable than the nickel heating wire.

[0030] The heating wire 20 can be longitudinally helically wound around the insulating bracket 21 or transversely helically wound around the insulating bracket 21. Since the housing 1 has an elongated structure, in this embodiment, the heating wire 20 is preferably transversely helically wound around the insulating bracket 21, so that the distribution of the heating wire 20 is more concentrated, and thus the heating effect on the tobacco is better.

[0031] Specifically, turn on the switch of the smoking device body a to energize the heating wire 20. Since the heating wire 20 has its own resistance, heat will be generated after being energized. As time increases, the temperature of the heating wire 20 will rise, so its resistance will increase accordingly, the power will decrease, and the heating rate will continue to decline. The control unit continuously monitors its resistance value. After reaching the temperature value preset by the control unit, the control unit controls the output power to perform automatic temperature control and constant temperature control. The temperature of the heating wire 20 is conducted to the steel shell 1, and then the tobacco is baked by the shell 1 that is in direct contact with the tobacco.

[0032] Further, the insulating bracket 21 is a mica sheet. Mica is a high-temperature resistant insulating material, which can prevent the insulating bracket 21 from melting after the heating wire 20 heats up.

[0033] Further, the pin electrode 22 uses a material with a low temperature coefficient of resistance, that is, as the temperature changes, the change in its resistance is small and does not affect the resistance change of the heating wire 20. In this embodiment, the pin electrode 22 is a copper-nickel alloy.

[0034] Further, the shell 1 is provided with an insulating coating on the inner side of the cavity to prevent the heating wire 20 located in the cavity from contacting the steel shell 1, so that the shell 1 and the heating wire 20 are in contact, causing a short circuit phenomenon.

[0035] Further, since the electric heating component 2 will generate high temperature after being energized, the shell 1 is easily oxidized due to high temperature, and after the shell 1 is used multiple times, carbonized tobacco is easily left on the shell 1. Therefore, a coating with strong antioxidant ability is added to the outer layer of the shell 1 to delay the degree of oxidation. In this embodiment, a glass glaze coating is provided on the outer side of the shell 1, and its surface is relatively smooth, which is convenient for cleaning.

[0036] Further, a high-temperature resistant ceramic glue is filled between the shell 1 and the electric heating component 2 to fix the heating wire 20 and the shell 1.

[0037] Further, one end of the shell 1 away from the smoking device body a is conical, which is convenient for inserting the shell 1 into the tobacco.

[0038] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0041] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" can be used here to describe the spatial positional relationship of a device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above" can include both the orientation of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0042] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without otherwise stating, the above words have no special meaning. Therefore, it cannot be understood as a limitation on the protection scope of the present application.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An e-cigarette heating component, which is installed on a smoking device body (a) and used for heating tobacco, wherein a control unit is provided in the smoking device body (a), characterized in that The electronic cigarette heating component comprises a housing (1) and an electric heating component (2); The shell (1) is made of steel, one end of the shell (1) is mounted on the smoking device body (a), and a cavity is provided therein, and the electric heating component (2) is sleeved in the cavity; The electric heating component (2) comprises a heating wire (20), an insulating bracket (21) and a pin electrode (22); the heating wire (20) is a pure platinum wire, and the heating wire (20) is wound around the insulating bracket (21); two pin electrodes (22) are provided, and both are fixedly connected to the insulating bracket (21); the two pin electrodes (22) are electrically connected to the wire ends at both ends of the heating wire (20), respectively, and one end of the pin electrode (22) extends out of the cavity and is electrically connected to the control unit.

2. The e-cigarette heating component according to claim 1, characterized in that, The insulating support (21) is a mica sheet.

3. The e-cigarette heating component according to claim 1, wherein, The pin electrode (22) is made of copper-nickel alloy.

4. The e-cigarette heating component according to claim 1, wherein, The housing (1) is provided with an insulating coating on the inner side of the cavity.

5. A heating component of an electronic cigarette according to claim 1, characterized in that, The outer side of the shell (1) is provided with a glass glaze coating.

6. The e-cigarette heating component according to claim 1, characterized in that, High-temperature resistant ceramic glue is filled between the housing (1) and the electric heating component (2).

7. The heating component of an electronic cigarette according to claim 1, characterized in that, The end of the shell (1) away from the smoking device body (a) is in a pointed cone shape.

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