CN112931975A - Metal needle type heating body for heating cigarette - Google Patents
Metal needle type heating body for heating cigarette Download PDFInfo
- Publication number
- CN112931975A CN112931975A CN202110333725.2A CN202110333725A CN112931975A CN 112931975 A CN112931975 A CN 112931975A CN 202110333725 A CN202110333725 A CN 202110333725A CN 112931975 A CN112931975 A CN 112931975A
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- Prior art keywords
- heating
- needle
- area
- ceramic
- heating area
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/57—Temperature control
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Abstract
The invention discloses a metal needle type heating body for heating cigarettes, and belongs to the field of heating non-burning cigarettes. The method comprises the following steps: the heating device comprises a needle-shaped shell component, a heating wire and a heating wire, wherein a ceramic core rod is arranged in the needle-shaped shell component, the ceramic core rod is wound with the heating wire, and the winding area of the heating wire on the ceramic core rod is divided into a first heating area, a second heating area and a third heating area; the winding densities of the heating wires in the first heating area, the second heating area and the third heating area are different, wherein the density of the second heating area is the minimum, and the winding densities of the heating wires in the first heating area and the third heating area are higher than that of the second heating area. The temperature distribution of the heating needle is accurately adjusted by controlling the spatial distribution of the heating wire, so that the problem that the heating body generates heat unevenly at present is solved.
Description
Technical Field
The invention relates to the field of heating non-combustible cigarettes, in particular to a metal needle type heating body for heating cigarettes.
Background
The heating body is the common core component that is used for heating cigarette, and current heating body heating circuit distributes unreasonablely, and material heat conduction speed is slow etc. causes the heating body at the in-process heat uneven distribution of work, and each regional heating temperature of cigarette bullet baking process differs too greatly, and each regional carbonization degree is different when the suction is finished, and the suction that gives the consumer experiences and brings adverse effect.
Disclosure of Invention
The invention aims to provide a metal needle type heating body for heating cigarettes, which aims to solve the technical problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a metal needle type heating body for heating cigarettes comprises: the heating device comprises a needle-shaped shell component, a heating wire and a heating wire, wherein a ceramic core rod is arranged in the needle-shaped shell component, the ceramic core rod is wound with the heating wire, and the winding area of the heating wire on the ceramic core rod is divided into a first heating area, a second heating area and a third heating area; the winding densities of the heating wires in the first heating area, the second heating area and the third heating area are different, wherein the density of the second heating area is the minimum, and the winding densities of the heating wires in the first heating area and the third heating area are higher than that of the second heating area.
Furthermore, the needle-shaped housing part comprises a needle-shaped housing and a ceramic base, the needle-shaped housing is made of metal materials, a cavity is formed in the needle-shaped housing, the ceramic core rod is arranged in the cavity, and the ceramic core rod and the ceramic base are fixed on the needle-shaped metal housing through ceramic glue.
Further, the winding density of the heating wires of the first heating area and the third heating area is 1.2 times or more than 1.2 times that of the second heating area.
Furthermore, the outer wall of the needle-shaped shell is attached with a protective glaze layer, and the inner wall of the needle-shaped shell is attached with an insulating glaze layer.
Furthermore, the heating wire is formed by welding two thermocouple materials, namely a K-type thermocouple and a positive electrode material, a J-type thermocouple and an N-type thermocouple; wherein, the positive and negative electrode materials of the K-type thermocouple are nickel-chromium alloy and nickel-silicon alloy respectively; the positive and negative electrode materials of the J-type thermocouple are respectively pure iron and copper-nickel alloy; the anode and cathode materials of the N-type thermocouple are nickel-chromium-silicon alloy and nickel-silicon-magnesium alloy respectively.
Further, the ceramic base material may be alumina ceramic, zirconia ceramic or silica ceramic.
Furthermore, an arc transition structure is arranged at the joint of the ceramic base and the needle-shaped shell.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a metal needle type heating body for heating cigarettes, which can accurately adjust the temperature distribution of a heating needle by controlling the spatial distribution of heating wires, solve the problem of uneven heating of the conventional heating body and ensure that the heating uniformity of the prepared heating body is better.
Drawings
FIG. 1 is a schematic structural view of a metal needle type heating element for heating cigarettes according to the present invention.
FIG. 2 is a schematic structural view of a heater of the metal needle type heating element for heating cigarettes of the present invention.
FIG. 3 is a temperature rise heating infrared test chart of the metal needle type heating element for heating cigarette of the present invention.
The labels in the figure are: 10-a ceramic base, 20-a needle-shaped shell, 30-a ceramic core rod, 21-ceramic glue, 22-a heating wire, 23-a first heating area, 24-a second heating area and 25-a third heating area.
Detailed Description
The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1, a metal needle type heating element for heating cigarette comprises: the needle housing 20 component, the needle housing 20 component includes the needle housing 20 and the ceramic base 10, the ceramic base 10 material can be alumina ceramics, zirconia ceramics or silica ceramics. The needle-shaped shell 20 is made of metal material, a cavity is arranged in the needle-shaped shell 20, the ceramic core rod 30 is arranged in the cavity, and the ceramic core rod 30 and the ceramic base 10 are fixed on the needle-shaped metal shell through ceramic glue 21. The ceramic paste 21 plays both a role of fixing the ceramic core rod 30 and a role of heat conduction. The joint of the ceramic base 10 and the needle-shaped housing 20 is provided with an arc transition structure.
The ceramic core rod 30 is wound with the heating wire 22, the heating wire 22 is distributed in a spiral shape, and the winding area of the heating wire 22 on the ceramic core rod 30 is divided into a first heating area 23, a second heating area 24 and a third heating area 25; the winding density of the heating wires 22 in the first heating area 23, the second heating area 24 and the third heating area 25 is different, wherein the minimum thread pitch of the density of the second heating area 24 is that the winding density of the heating wires 22 in the first heating area 23 and the third heating area 25 is higher than that of the second heating area 24. The winding density of the heating wires 22 of the first heating area 23 and the third heating area 25 is 1.2 times or more than 1.2 times of that of the second heating area 24.
The needle-shaped housing 20 is made of a metal material, and comprises stainless steel, aluminum alloy or copper alloy, preferably stainless steel material, more preferably 430 stainless steel, and has a length of 15mm to 20 mm.
In this embodiment, the needle housing 20 has a protective glaze layer attached to the outer wall thereof for preventing the metal needle housing 20 from being corroded or oxidized, and an insulating glaze layer attached to the inner wall thereof for insulating the heating wire 22 from the outer wall of the metal needle housing.
In this embodiment, the heating wire 22 is formed by welding two thermocouple materials, and is formed by welding the positive and negative electrode materials of a K-type thermocouple, or formed by welding the positive and negative electrode materials of a J-type thermocouple, or formed by welding the positive and negative electrode materials of an N-type thermocouple; wherein, the positive and negative electrode materials of the K-type thermocouple are respectively nickel-chromium alloy (containing 90% of nickel and 10% of chromium) and nickel-silicon alloy (containing 97% of nickel and 3% of silicon); the positive and negative electrode materials of the J-type thermocouple are respectively pure iron and copper-nickel alloy; the anode and cathode materials of the N-type thermocouple are nickel-chromium-silicon alloy and nickel-silicon-magnesium alloy respectively.
Fig. 1 is a schematic diagram of an embodiment of the present invention, fig. 2 is a partial diagram of a metal heating wire 22 in fig. 1, and referring to fig. 1 and fig. 2, the heating body includes: ceramic base 10, needle housing 20, ceramic core rod 30. The needle housing 20 is filled with ceramic paste 21 for fixing the heater 22.
The heating wire 22 is connected with a metal wire by welding, the connector is arranged in the needle-shaped shell 20, the stainless steel shell is made of 430 stainless steel, the length of the stainless steel shell is 20mm, a protective glaze layer with the thickness of 5 mu m is attached to the surface of the shell, an insulating glaze layer with the thickness of 3 mu m is attached to the inner surface of the shell, and the length of the ceramic core rod 30 is 16 mm. The distance between the outer diameter of the heating wire 22 and the needle housing 20 is 0.5mm, and the gap is filled with ceramic paste 21. The length of the first heating region 23 of the heating wire 22 is 4mm, the screw pitch is 1mm, the length of the second heating region 24 of the heating wire 22 is 8mm, the screw pitch is 0.5mm, the length of the third heating region 25 of the heating wire 22 is 4mm, and the screw pitch is 0.3 mm.
The heat of the first heating area 23 and the third heating area 25 can be transmitted to the second heating area 24 in the up-down space, so that the problem that the heat distribution of the second heating area 24 is uneven due to the density of the heating wire 22 is solved, and the heat is greatly reduced in the process of transmitting the heat from the inner wall to the outer surface of the stainless steel shell because the needle-shaped shell 20 is made of 430 stainless steel material with high heat conductivity, thereby ensuring that the surface temperature distribution uniformity of the metal shell is better. The temperature test results of the points are basically approximate by taking 4 points at different positions of the heating needle, and the temperature deviation is 5 ℃, so that the uniformity of the temperature distribution on the surface of the heating needle is good.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a heat metal needle formula heat-generating body for cigarette which characterized in that includes: the heating device comprises a needle-shaped shell (20) component, wherein a ceramic core rod (30) is arranged in the needle-shaped shell (20), a heating wire (22) is wound on the ceramic core rod (30), and a winding area of the heating wire (22) on the ceramic core rod (30) is divided into a first heating area (23), a second heating area (24) and a third heating area (25); the winding densities of the heating wires (22) in the first heating area (23), the second heating area (24) and the third heating area (25) are different, wherein the density of the second heating area (24) is the minimum, and the winding densities of the heating wires (22) in the first heating area (23) and the third heating area (25) are higher than that of the second heating area (24).
2. The metal needle type heating body for heating the cigarette as claimed in claim 1, wherein the needle type casing (20) comprises a needle type casing (20) and a ceramic base (10), the needle type casing (20) is made of metal material, a cavity is arranged in the needle type casing (20), the ceramic core rod (30) is arranged in the cavity, and the ceramic core rod (30) and the ceramic base (10) are fixed on the needle type metal casing through ceramic glue (21).
3. A metal needle type heat-generating body for heating cigarette as claimed in claim 1, wherein the winding density of the heat generating wire (22) of the first heat-generating region (23) and the third heat-generating region (25) is 1.2 times or more than that of the second heat-generating region (24).
4. The metal needle type heat-generating body for heating cigarette as claimed in claim 2, wherein a protective glaze layer is attached to an outer wall of said needle-like case (20) and an insulating glaze layer is attached to an inner wall thereof.
5. The metal needle type heating element for heating the cigarettes according to claim 1, wherein the heating wire (22) is formed by welding two thermocouple materials, namely a K-type thermocouple and a positive electrode material, a J-type thermocouple and an N-type thermocouple; wherein, the positive and negative electrode materials of the K-type thermocouple are nickel-chromium alloy and nickel-silicon alloy respectively; the positive and negative electrode materials of the J-type thermocouple are respectively pure iron and copper-nickel alloy; the anode and cathode materials of the N-type thermocouple are nickel-chromium-silicon alloy and nickel-silicon-magnesium alloy respectively.
6. A heating element of metal needle type for heating cigarette as claimed in claim 2, wherein said ceramic base (10) material is alumina ceramic, zirconia ceramic or silica ceramic.
7. A metal needle type heating body for heating cigarette as claimed in claim 2, wherein a circular arc transition structure is provided at the joint of said ceramic base (10) and said needle type case (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110333725.2A CN112931975A (en) | 2021-03-29 | 2021-03-29 | Metal needle type heating body for heating cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110333725.2A CN112931975A (en) | 2021-03-29 | 2021-03-29 | Metal needle type heating body for heating cigarette |
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| Publication Number | Publication Date |
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| CN112931975A true CN112931975A (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110333725.2A Pending CN112931975A (en) | 2021-03-29 | 2021-03-29 | Metal needle type heating body for heating cigarette |
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| CN (1) | CN112931975A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113576045A (en) * | 2021-07-29 | 2021-11-02 | 深圳市克莱鹏科技有限公司 | Intelligent heating non-combustible ceramic heating body and preparation method thereof |
| CN113768201A (en) * | 2021-08-26 | 2021-12-10 | 深圳市基克纳科技有限公司 | Heating element and preparation method thereof |
| CN114190609A (en) * | 2021-12-31 | 2022-03-18 | 深圳易佳特科技有限公司 | Heating wire, atomizing core, atomizer and electron cigarette |
| WO2023279251A1 (en) * | 2021-07-06 | 2023-01-12 | 凡品思(深圳)科技有限公司 | Heat-not-burn cigarette and heating device therefor |
| WO2024094656A1 (en) * | 2022-10-31 | 2024-05-10 | Nicoventures Trading Limited | Heater for an aerosol provision device |
| WO2024094655A1 (en) * | 2022-10-31 | 2024-05-10 | Nicoventures Trading Limited | Heater for an aerosol provision device |
| WO2024103883A1 (en) * | 2022-11-17 | 2024-05-23 | 思摩尔国际控股有限公司 | Aerosol generating device and heating structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024094656A1 (en) * | 2022-10-31 | 2024-05-10 | Nicoventures Trading Limited | Heater for an aerosol provision device |
| WO2024094655A1 (en) * | 2022-10-31 | 2024-05-10 | Nicoventures Trading Limited | Heater for an aerosol provision device |
| WO2024103883A1 (en) * | 2022-11-17 | 2024-05-23 | 思摩尔国际控股有限公司 | Aerosol generating device and heating structure |
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