WO2021086111A1 - Ceramic heater for fine particle generating device - Google Patents

Ceramic heater for fine particle generating device Download PDF

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Publication number
WO2021086111A1
WO2021086111A1 PCT/KR2020/015035 KR2020015035W WO2021086111A1 WO 2021086111 A1 WO2021086111 A1 WO 2021086111A1 KR 2020015035 W KR2020015035 W KR 2020015035W WO 2021086111 A1 WO2021086111 A1 WO 2021086111A1
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Prior art keywords
ceramic body
fine particle
ceramic
ceramic heater
heating coil
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PCT/KR2020/015035
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French (fr)
Korean (ko)
Inventor
정승규
원혁
전인성
박용수
김대성
이학동
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주식회사 이엠텍
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Priority claimed from KR1020200116034A external-priority patent/KR102514300B1/en
Application filed by 주식회사 이엠텍 filed Critical 주식회사 이엠텍
Publication of WO2021086111A1 publication Critical patent/WO2021086111A1/en

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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
    • A24F40/10—Devices using liquid inhalable precursors
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/18—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being embedded in an insulating material

Definitions

  • the present invention relates to a ceramic heater for a device for generating fine particles.
  • FIG. 1 is a view showing a ceramic heater according to the prior art.
  • the existing ceramic heater 10 has a pipe shape, and its inner circumferential surface becomes a heating surface. In this case, the heating surface and the coil 12 are in contact with each other. Therefore, when the coil 12 is heated, the liquid phase is rapidly heated and vaporized to form fine particles (B). The fine particles (B) are inhaled by the user along with the outside air (A). In this case, when the liquid phase is heated on the surface of the heater 10, the liquid phase is rapidly heated and the liquid phase splashes during the evaporation process, or a liquid overflow phenomenon occurs in which the liquid phase enters the user's mouth through the mouthpiece. In addition, there is a problem in that the size of the vaporized particles by directly transferring heat to the liquid phase is large.
  • a liquid vaporization structure such as a hole type or a bath type is located on the top or side of the vaporization space in which the liquid vaporization occurs.
  • the pores between the particles forming the ceramic heater 10 are connected to each other so that the liquid phase follows the ceramic body 10 and the inner peripheral surface of the ceramic body 10 Flows to the side.
  • the liquid phase moved in this way is heated by the heating coil 12 to evaporate, and the liquid phase flowing to a position where it cannot be heated sufficiently in the heating coil 12 flows out through the pores of the ceramic body 10 as it is and flows to the bottom. . Therefore, at this time, there is a problem that the liquid phase (C) that cannot be vaporized flows under the heater 10 as it is and accumulates therein.
  • the product may malfunction due to the deposition of the liquid in the product, and when the liquid overflows depending on the viscosity of the liquid, the airflow hole connecting the pressure sensor 20 and the airflow path 14 is blocked to recognize the puff. There was also a problem of not being able to do it.
  • An object of the present invention is to provide a ceramic heater for a fine particle generator capable of solving problems such as scattering and precipitation of a liquid phase.
  • the present invention a cylindrical porous ceramic body having a hollow portion therein; And a heating coil embedded in the ceramic body so as not to contact the inner circumferential surface of the ceramic body.
  • the porous ceramic body includes a first part between the heating coil and the inner circumferential surface, and a second part between the heating coil and the outer circumferential surface, and the first part and the second part have different characteristics. It provides a ceramic heater for a fine particle generating device, characterized in that.
  • the first part and the second part provide a ceramic heater for a fine particle generator, characterized in that they are made of different materials.
  • the first part and the second part provide a ceramic heater for a fine particle generator, characterized in that they have different porosities.
  • a ceramic heater for a fine particle generating device characterized in that the hollow portion of the ceramic body has a shape that becomes narrower toward the top.
  • the present invention is a cylindrical porous ceramic body having a hollow portion therein; And a heating coil embedded in the ceramic body, wherein the internal hollow portion of the ceramic body becomes narrower toward the top.
  • the heating coil is positioned inside the ceramic at a distance from the surface of the ceramic heater, so that the vaporized liquid particles are reduced, and the phenomenon that the liquid phase is rapidly heated can be prevented from splashing.
  • FIG. 1 is a view showing a ceramic heater for a conventional fine particle generating device
  • FIG. 2 is a view showing a ceramic heater for a fine particle generating device according to a first embodiment of the present invention
  • FIG. 3 is a view showing a ceramic heater for a fine particle generating device according to a second embodiment of the present invention.
  • FIG. 4 is a view showing a ceramic heater for a fine particle generating device according to a third embodiment of the present invention.
  • FIG. 5 is a view showing a ceramic heater for a fine particle generating device according to a fourth embodiment of the present invention.
  • FIG. 2 is a view showing a ceramic heater for a fine particle generating device according to the first embodiment of the present invention.
  • a heating coil 120 is embedded in a cylindrical porous ceramic body 110.
  • the liquid phase moves slowly, the aerosol moves smoothly at a high temperature, and the pores of the porous ceramic 110 are connected to form a crossroad through which the aerosol can pass.
  • the size of the pores is preferably between 10nm to 10 ⁇ m, more preferably between 0.1 to 1 ⁇ m.
  • the porous ceramic body 110 should use a material having high thermal conductivity among ceramic materials and having good durability at high temperatures.
  • the thermal conductivity is 10 (W/m ⁇ K) or more, and the thermal expansion coefficient is preferably 0.4% or less at 300 degrees or less.
  • the porous ceramic body 110 may be manufactured from diatomaceous earth, which is a mineral made of the above-described materials.
  • the porous ceramic body 110 may be manufactured by a powder injection molding method. After mixing the powder ceramic and the organic binder, the mixture is injected into a mold to form a desired shape. Thereafter, the binder is removed and sintered to manufacture the porous ceramic body 110 having a desired shape.
  • the ceramic body 110 has a hollow 140 formed therein.
  • the heating coil 120 is characterized in that it is buried inside the ceramic body 110 at a predetermined distance from the inner circumferential surface of the ceramic body 110. Accordingly, the heating coil 120 directly heats the liquid phase on the inner circumferential surface of the ceramic body 110 so that the liquid phase is not evaporated into fine particles (B), but the liquid phase slowly rises from the inner circumferential surface of the ceramic body 110 that is evenly heated. , It is possible to prevent a liquid overflow phenomenon in which the liquid suddenly boils and splashes, or the liquid that has not been vaporized into the user's mouth through the suction port is passed over.
  • the heating coil 120 is positioned inside the ceramic body 110 at a distance from the inner circumferential surface of the ceramic body 110, the vaporized liquid particles can be reduced and rapid heating can be prevented, thereby preventing liquid splashing. Can be prevented.
  • the material of the heating coil 120 may be made of a metallic material, such as KANTHAL, SUS, or NICHROME.
  • FIG. 3 is a view showing a ceramic heater for a fine particle generating device according to a second embodiment of the present invention.
  • the ceramic heater 100a according to the second embodiment of the present invention is characterized in that a ceramic body is formed of two parts. A first part 112b disposed inside the heating coil 120a, and a second part 114b disposed outside the first part 112b including the heating coil 120a.
  • the first part 112b and the second part 114b may be formed of different materials or materials having different characteristics, such as different porosities.
  • the content of diatomaceous earth (SiO 2 ) is high, absorption of the liquid phase into the ceramic body is slow. By using this, the content of diatomaceous earth can be increased in locations where leakage is likely to occur.
  • the higher the content of alumina (Al 2 O 3 ) the faster the liquid phase is absorbed into the ceramic body.
  • the first part 112b is formed of a ceramic material having a high alumina content and generates fine particles by heating the liquid with the heating coil 120a
  • the liquid phase is absorbed by the first part 112a, which is a part where vaporization occurs. You can do it quickly.
  • the second part 114a including the heating coil 120a increases the content of diatomaceous earth to slow the absorption of the liquid phase, thereby preventing liquid leakage.
  • FIG. 4 is a view showing a ceramic heater for a fine particle generating device according to a third embodiment of the present invention.
  • the ceramic heater 100b according to the third embodiment of the present invention is characterized in that a ceramic body is formed of three parts.
  • the first part 112b located inside the heating coil 120b, the heating coil 120b are included, and the second part 114b located outside the first part 112b, and the heating coil 120b. It includes a third part 116b positioned on the outside.
  • the ceramic body consists of three parts, the ceramic component and porosity of the three parts can be all changed as necessary, and the second part 114b has a high content of alumina having a high water absorption rate, and the first part 112b ) And the third part 116 may be formed of a material having a high content of diatomaceous earth having a low absorption rate. Conversely, the second part 114b has a high content of diatomaceous earth having a low absorption rate, and the first part 112b and the third part 116 may be formed of a material having a high alumina content having a high absorption rate.
  • the ceramic heater according to the present invention has an advantage of reducing the size of vaporized particles because the heating coil heats the ceramic body and the ceramic body indirectly transfers heat to the liquid phase.
  • the ceramic body can be made of a single material, or can be made of two or three different materials.
  • the ceramic body positioned on the inside of the heating coil may be made of Al 2 O 3 material, and the ceramic body positioned on the outside of the heating coil may be made of SiO 2.
  • FIG. 5 is a view showing a ceramic heater for a fine particle generating device according to a fourth embodiment of the present invention.
  • the inner diameter of the hollow portion 140c becomes narrower toward the top.
  • the pipe-type heater of the conventional electronic cigarette cartridge is a straight cylinder, and the disadvantage of this structure is that the vaporized liquid directly enters the oral cavity. When the heated liquid directly enters the oral cavity, the taste or hotness of the liquid is transmitted, causing discomfort.
  • the inner diameter of the hollow portion 140c becomes narrower toward the top, and thus the cross-section is trapezoidal.
  • the heating coil 120c may be disposed inwardly on the inner circumferential surface of the ceramic body 100c, or may be buried inside at a distance from the inner circumferential surface of the ceramic body 100c as in the first embodiment.
  • the heating surface becomes wider, the number of fine particles B generated by vaporization of the liquid phase increases.
  • the inner diameter of the upper side of the hollow portion 140c is small during suction, the liquid phase generated when the liquid phase is evaporated is blocked on the inner circumferential surface of the ceramic body 100c, thereby preventing the liquid phase from scattering or overflowing.

Abstract

The present invention relates to a ceramic heater for a fine particle generating device. The present invention provides a ceramic heater for a fine particle generating device, comprising: a cylindrical porous ceramic body having a hollow part therein; and a heating coil embedded inside the ceramic body so as not to come in contact with the inner circumferential surface of the ceramic body.

Description

미세입자 발생장치용 세라믹 히터Ceramic heater for fine particle generator
본 발명은 미세입자 발생장치용 세라믹 히터에 관한 것이다.The present invention relates to a ceramic heater for a device for generating fine particles.
현재 시중의 전자담배 카트리지는 액상을 코일이 직접 가열 시켜 기화되는 구조이다. Current electronic cigarette cartridges have a structure in which a liquid is heated directly by a coil to evaporate it.
이러한 구조의 단점은 코일이 직접 가열되면 열에너지를 그대로 낮은 온도의 액상이 모두 받게 된다. 따라서 갑작스런 에너지 유입으로 액상 분자 중 물 분자의 부피가 급속도로 커져 터지는 것처럼 보이게 된다. 이렇게 터지게 된 입자들은 흡연자의 입으로 들어와 뜨거움 및 불쾌감을 줄 수 있다. The disadvantage of this structure is that when the coil is directly heated, all of the low temperature liquid is received as it is. Therefore, the volume of water molecules in the liquid molecule rapidly increases due to the sudden inflow of energy, making it appear as if it bursts. These explode particles can enter the smoker's mouth and cause heat and discomfort.
도 1은 종래 기술에 따른 세라믹 히터를 도시한 도면이다. 기존 세라믹 히터(10)는 파이프 형상으로, 내주면이 가열면이 된다. 이때, 가열면과 코일(12)이 닿아있는 형상이다. 따라서 코일(12) 가열 시 액상이 빠르게 승온되어 기화되어 미세 입자(B)화 된다. 미세 입자(B)는 외기(A)와 함께 사용자가 흡입하게 된다. 이때, 히터(10)의 표면에서 액상이 가열될 경우, 빠르게 가열되며 기화 과정에서 액상이 튀거나, 액상이 마우스 피스를 통해 사용자의 입안으로 들어오게 되는 액 넘김 현상이 발생한다. 또한, 직접 액상에 열을 전달하여 기화된 입자의 크기가 크다는 문제점이 있었다. 1 is a view showing a ceramic heater according to the prior art. The existing ceramic heater 10 has a pipe shape, and its inner circumferential surface becomes a heating surface. In this case, the heating surface and the coil 12 are in contact with each other. Therefore, when the coil 12 is heated, the liquid phase is rapidly heated and vaporized to form fine particles (B). The fine particles (B) are inhaled by the user along with the outside air (A). In this case, when the liquid phase is heated on the surface of the heater 10, the liquid phase is rapidly heated and the liquid phase splashes during the evaporation process, or a liquid overflow phenomenon occurs in which the liquid phase enters the user's mouth through the mouthpiece. In addition, there is a problem in that the size of the vaporized particles by directly transferring heat to the liquid phase is large.
또한, 종래의 전자담배 카트리지는 홀 타입, 욕조 타입 등 액상 기화 구조가 액상의 기화가 이루어지는 기화 공간의 상면 또는 측면에 위치해있다. In addition, in the conventional electronic cigarette cartridge, a liquid vaporization structure such as a hole type or a bath type is located on the top or side of the vaporization space in which the liquid vaporization occurs.
또한, 가열 코일(12)에 의해 세라믹 히터(10)가 가열되면, 세라믹 히터(10)를 이루는 입자들 사이의 기공들이 서로 연결되면서 액상이 세라믹 바디(10)를 따라 세라믹 바디(10)의 내주면 쪽으로 흐르게 된다. 이렇게 이동한 액상은 가열 코일(12)에 의해 가열되어 기화하는데, 가열 코일(12)에 충분히 가열될 수 없는 위치로 흐르게 된 액상은 그대로 세라믹 바디(10)의 기공을 통해 흘러나와 바닥으로 흐르게 된다. 따라서 이때 기화되지 못한 액상(C)은 그대로 히터(10)의 아래로 흐르게 되어 내부에 고이게 된다는 문제가 있었다. 그에 따라, 제품 내에 액상의 침점으로 인해 제품이 오동작할 수 있으며, 액상의 점도에 따라 액 넘침 시에 압력 센서(20)와 기류 패스(14)를 연결하는 기류 홀을 차단하여 퍼프(Puff) 인식을 하지 못한다는 문제도 발생하였다. In addition, when the ceramic heater 10 is heated by the heating coil 12, the pores between the particles forming the ceramic heater 10 are connected to each other so that the liquid phase follows the ceramic body 10 and the inner peripheral surface of the ceramic body 10 Flows to the side. The liquid phase moved in this way is heated by the heating coil 12 to evaporate, and the liquid phase flowing to a position where it cannot be heated sufficiently in the heating coil 12 flows out through the pores of the ceramic body 10 as it is and flows to the bottom. . Therefore, at this time, there is a problem that the liquid phase (C) that cannot be vaporized flows under the heater 10 as it is and accumulates therein. Accordingly, the product may malfunction due to the deposition of the liquid in the product, and when the liquid overflows depending on the viscosity of the liquid, the airflow hole connecting the pressure sensor 20 and the airflow path 14 is blocked to recognize the puff. There was also a problem of not being able to do it.
한편 압력 센서(20) 뿐 아니라 압력 센서(20)의 결과값을 전송받아 코일(12)의 발열량을 제어하는 제어 회로(30) 쪽으로 액상이 유입될 우려도 있었다. On the other hand, there is a concern that a liquid phase may flow into the control circuit 30 that controls the heating value of the coil 12 by receiving the result value of the pressure sensor 20 as well as the pressure sensor 20.
본 발명은 액상의 비산, 침전 등의 문제를 해결할 수 있는 미세입자 발생장치용 세라믹 히터를 제공하는 것을 목적으로 한다. An object of the present invention is to provide a ceramic heater for a fine particle generator capable of solving problems such as scattering and precipitation of a liquid phase.
본 발명은, 내부에 중공부를 가지는 원통형 다공성 세라믹 바디; 및 세라믹 바디의 내주면과 접하지 않도록 세라믹 바디의 내측에 매설된 가열 코일;을 구비하는 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터를 제공한다.The present invention, a cylindrical porous ceramic body having a hollow portion therein; And a heating coil embedded in the ceramic body so as not to contact the inner circumferential surface of the ceramic body.
또한 본 발명의 다른 일 예로, 다공성 세라믹 바디는, 가열코일과 내주면 사이의 제1 파트와, 가열코일과 외주면 사이의 제2 파트를 구비하며, 제1 파트와 제2 파트는 서로 다른 특성을 가지는 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터를 제공한다. In addition, as another example of the present invention, the porous ceramic body includes a first part between the heating coil and the inner circumferential surface, and a second part between the heating coil and the outer circumferential surface, and the first part and the second part have different characteristics. It provides a ceramic heater for a fine particle generating device, characterized in that.
또한 본 발명의 다른 일 예로, 제1 파트와 제2 파트는, 서로 다른 재질로 이루어지는 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터를 제공한다. In addition, as another example of the present invention, the first part and the second part provide a ceramic heater for a fine particle generator, characterized in that they are made of different materials.
또한 본 발명의 다른 일 예로, 제1 파트와 제2 파트는, 서로 다른 공극률을 가지는 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터를 제공한다. In addition, as another example of the present invention, the first part and the second part provide a ceramic heater for a fine particle generator, characterized in that they have different porosities.
또한 본 발명의 다른 일 예로, 세라믹 바디의 내부 중공부는, 상부로 갈수록 좁아지는 형태인 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터를 제공한다. In addition, as another example of the present invention, there is provided a ceramic heater for a fine particle generating device, characterized in that the hollow portion of the ceramic body has a shape that becomes narrower toward the top.
또한 본 발명은 내부에 중공부를 가지는 원통형 다공성 세라믹 바디; 및 세라믹 바디에 매설된 가열 코일;을 구비하며, 세라믹 바디의 내부 중공부는, 상부로 갈수록 좁아지는 형태인 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터를 제공한다.In addition, the present invention is a cylindrical porous ceramic body having a hollow portion therein; And a heating coil embedded in the ceramic body, wherein the internal hollow portion of the ceramic body becomes narrower toward the top.
본 발명이 제공하는 미세입자 발생장치용 세라믹 히터는 가열 코일이 세라믹 히터의 표면과 간격을 두고 세라믹 내측에 위치함으로써 기화되는 액상입자를 작게 하고, 급속도로 가열되어 액상이 튀는 현상을 예방할 수 있다. In the ceramic heater for a fine particle generator provided by the present invention, the heating coil is positioned inside the ceramic at a distance from the surface of the ceramic heater, so that the vaporized liquid particles are reduced, and the phenomenon that the liquid phase is rapidly heated can be prevented from splashing.
또한 코일의 온도와 액상 온도 상승이 유사하여 누액 발생이 기존 구조 대비 현저히 낮아 지게 된다. In addition, since the temperature of the coil and the rise of the liquidus temperature are similar, the occurrence of leakage is significantly lower than that of the existing structure.
도 1은 종래의 미세입자 발생장치용 세라믹 히터를 도시한 도면,1 is a view showing a ceramic heater for a conventional fine particle generating device,
도 2는 본 발명의 제1 실시예에 따른 미세입자 발생장치용 세라믹 히터를 도시한 도면, 2 is a view showing a ceramic heater for a fine particle generating device according to a first embodiment of the present invention;
도 3은 본 발명의 제2 실시예에 따른 미세입자 발생장치용 세라믹 히터를 도시한 도면,3 is a view showing a ceramic heater for a fine particle generating device according to a second embodiment of the present invention;
도 4는 본 발명의 제3 실시예에 따른 미세입자 발생장치용 세라믹 히터를 도시한 도면,4 is a view showing a ceramic heater for a fine particle generating device according to a third embodiment of the present invention;
도 5는 본 발명의 제4 실시예에 따른 미세입자 발생장치용 세라믹 히터를 도시한 도면.5 is a view showing a ceramic heater for a fine particle generating device according to a fourth embodiment of the present invention.
도 2는 본 발명의 제1 실시예에 따른 미세입자 발생장치용 세라믹 히터를 도시한 도면이다. 2 is a view showing a ceramic heater for a fine particle generating device according to the first embodiment of the present invention.
본 발명의 제1 실시예에 따른 미세입자 발생장치용 세라믹 히터(100)는, 원통 형상의 다공성 세라믹 바디(110) 내에 가열 코일(120)이 매립된 형태이다. In the ceramic heater 100 for a fine particle generator according to the first embodiment of the present invention, a heating coil 120 is embedded in a cylindrical porous ceramic body 110.
다공성 세라믹 바디(110)는, 액상의 이동은 느리게 이루어지며, 고온에서 에어로졸의 이동은 원활한 형태로, 다공성 세라믹(110)의 각 기공들은 연결되어 에어로졸이 지나갈 수 있는 기로를 형성할 수 있다. 이때, 기공의 크기는 10nm 내지 10㎛ 사이인 것이 바람직하며, 더욱 바람직하게는 0.1 내지 1㎛ 사이인 것이 바람직하다. In the porous ceramic body 110, the liquid phase moves slowly, the aerosol moves smoothly at a high temperature, and the pores of the porous ceramic 110 are connected to form a crossroad through which the aerosol can pass. At this time, the size of the pores is preferably between 10nm to 10㎛, more preferably between 0.1 to 1㎛.
다공성 세라믹 바디(110)는 세라믹 소재 중에서도 열전도율이 높고, 고온에서 내구성이 좋은 소재를 사용하여야 한다. 열 전도율은 10(W/m·K) 이상이며, 열팽창률은 300도 이하에서 0.4%이하인 것이 바람직하다. 또한, 가공 시 열추숙이 심하지 않아 성형성을 확보할 수 있으며, 열충격 진행 시에도 높은 강도를 유지할 수 있는 소재를 사용하는 것이 바람직하다. 따라서, Alumina, SiC, SiN, SiO2 중 어느 하나를 다공성 세라믹 바디(110)의 소재로 사용할 수 있다. 또는 전술한 물질들로 이루어진 광물인 규조토로 다공성 세라믹 바디(110)를 제조할 수도 있다. The porous ceramic body 110 should use a material having high thermal conductivity among ceramic materials and having good durability at high temperatures. The thermal conductivity is 10 (W/m·K) or more, and the thermal expansion coefficient is preferably 0.4% or less at 300 degrees or less. In addition, it is preferable to use a material capable of maintaining high strength even when thermal shock progresses, and it is possible to secure formability because heat aging is not severe during processing. Therefore, any one of Alumina, SiC, SiN, and SiO 2 may be used as a material for the porous ceramic body 110. Alternatively, the porous ceramic body 110 may be manufactured from diatomaceous earth, which is a mineral made of the above-described materials.
다공성 세라믹 바디(110)는 분말 사출 성형 방법으로 제조될 수 있다. 분말 세라믹과 유기 바인더를 믹싱한 다음, 원하는 형태로 제작하기 위핸 금형 내에 혼합물을 사출한다. 이후, 바인더를 제거하고 소결하여 원하는 형태의 다공성 세라믹 바디(110)를 제조할 수 있다. The porous ceramic body 110 may be manufactured by a powder injection molding method. After mixing the powder ceramic and the organic binder, the mixture is injected into a mold to form a desired shape. Thereafter, the binder is removed and sintered to manufacture the porous ceramic body 110 having a desired shape.
세라믹 바디(110)는 따라서 내부에 중공(140)을 형성되는데, 이 중공(140)을 통해 사용자가 흡입 시 외기(A)와 함께 액상이 기화된 미세 입자(B)가 흐르게 된다. Accordingly, the ceramic body 110 has a hollow 140 formed therein. When the user inhales through the hollow 140, the fine particles B in which the liquid vaporized together with the outside air A flows.
이때, 가열 코일(120)은 세라믹 바디(110)의 내주면으로부터 소정 간격을 두세라믹 바디(110)의 내부에 매립되는 것이 특징이다. 그에 따라 가열 코일(120)이 세라믹 바디(110)의 내주면에서 액상을 직접 가열되어 액상이 미세 입자(B)로 기화되는 것이 아니라, 고르게 가열된 세라믹 바디(110)의 내주면에서 액상이 천천히 승온되므로, 액상이 갑자기 끓어서 튀거나, 흡입구를 통해 사용자의 입으로 기화되지 않은 액상이 넘어가는 액 넘김 현상을 방지할 수 있다. In this case, the heating coil 120 is characterized in that it is buried inside the ceramic body 110 at a predetermined distance from the inner circumferential surface of the ceramic body 110. Accordingly, the heating coil 120 directly heats the liquid phase on the inner circumferential surface of the ceramic body 110 so that the liquid phase is not evaporated into fine particles (B), but the liquid phase slowly rises from the inner circumferential surface of the ceramic body 110 that is evenly heated. , It is possible to prevent a liquid overflow phenomenon in which the liquid suddenly boils and splashes, or the liquid that has not been vaporized into the user's mouth through the suction port is passed over.
또한 가열 코일(120)이 세라믹 바디(110)의 내주면과 간격을 두고 세라믹 바디(110)의 내측에 위치함으로써 기화되는 액상 입자를 작게 하고, 급속도로 가열되는 것을 방지할 수 있어 액상이 튀는 현상을 예방할 수 있다. 이때, 가열 코일(120)의 소재는 금속 물질로, KANTHAL, SUS, NICHROME 등으로 제조될 수 있다. In addition, since the heating coil 120 is positioned inside the ceramic body 110 at a distance from the inner circumferential surface of the ceramic body 110, the vaporized liquid particles can be reduced and rapid heating can be prevented, thereby preventing liquid splashing. Can be prevented. At this time, the material of the heating coil 120 may be made of a metallic material, such as KANTHAL, SUS, or NICHROME.
도 3는 본 발명의 제2 실시예에 따른 미세입자 발생장치용 세라믹 히터를 도시한 도면이다. 3 is a view showing a ceramic heater for a fine particle generating device according to a second embodiment of the present invention.
본 발명의 제2 실시예에 따른 세라믹 히터(100a)는, 세라믹 바디가 2개의 파트로 이루어진 것이 특징이다. 가열 코일(120a)의 내측에 위치하는 제1 파트(112b)와, 가열 코일(120a)이 포함되며 제1 파트(112b)의 외측에 위치하는 제2 파트(114b)를 포함한다. The ceramic heater 100a according to the second embodiment of the present invention is characterized in that a ceramic body is formed of two parts. A first part 112b disposed inside the heating coil 120a, and a second part 114b disposed outside the first part 112b including the heating coil 120a.
이때, 제1 파트(112b)와 제2 파트(114b)는 서로 다른 재질이나 서로 다른 공극률을 가지는 등 서로 다른 특성을 가지는 재질로 형성할 수 있다. 예를 들어,　규조토(SiO2)의 함류량이 높으면 세라믹 바디 내로 액상의 흡수가 느려진다. 이를 이용하여 누액이 발생되기 쉬운 위치에는 규조토의 함유량을 늘릴 수 있다. 또한, 알루미나(Al2O3)의 함량이 높을수록 세라믹 바디 내로 액상의 흡수가 빨라진다. 그에 따라 제1 파트(112b)는 알루미나의 함량이 높은 세라믹 재질로 형성하여 가열 코일(120a)로 액상을 가열하여 미세입자를 발생시킬 때, 기화가 일어나는 부분인 제1 파트(112a)로 액상 흡수를 빠르게 할 수 있다. 또한, 가열 코일(120a)을 포함하는 제2 파트(114a)는 규조토의 함유량을 높여 액상의 흡수가 느리게 하여, 누액을 방지할 수 있다. In this case, the first part 112b and the second part 114b may be formed of different materials or materials having different characteristics, such as different porosities. For example, when the content of diatomaceous earth (SiO 2 ) is high, absorption of the liquid phase into the ceramic body is slow. By using this, the content of diatomaceous earth can be increased in locations where leakage is likely to occur. In addition, the higher the content of alumina (Al 2 O 3 ), the faster the liquid phase is absorbed into the ceramic body. Accordingly, when the first part 112b is formed of a ceramic material having a high alumina content and generates fine particles by heating the liquid with the heating coil 120a, the liquid phase is absorbed by the first part 112a, which is a part where vaporization occurs. You can do it quickly. In addition, the second part 114a including the heating coil 120a increases the content of diatomaceous earth to slow the absorption of the liquid phase, thereby preventing liquid leakage.
도 4는 본 발명의 제3 실시예에 따른 미세입자 발생장치용 세라믹 히터를 도시한 도면이다. 4 is a view showing a ceramic heater for a fine particle generating device according to a third embodiment of the present invention.
본 발명의 제3 실시예에 따른 세라믹 히터(100b)는, 세라믹 바디가 3개의 파트로 이루어진 것이 특징이다. 가열 코일(120b)의 내측에 위치하는 제1 파트(112b)와, 가열 코일(120b)이 포함되며 제1 파트(112b)의 외측에 위치하는 제2 파트(114b), 가열 코일(120b)의 외측에 위치하는 제3 파트(116b)를 포함한다. The ceramic heater 100b according to the third embodiment of the present invention is characterized in that a ceramic body is formed of three parts. The first part 112b located inside the heating coil 120b, the heating coil 120b are included, and the second part 114b located outside the first part 112b, and the heating coil 120b. It includes a third part 116b positioned on the outside.
세라믹 바디가 3개의 파트로 이루어진 경우에도, 필요에 따라 3개의 파트의 세라믹 성분이나 공극률을 모두 달리할 수 있고, 제2 파트(114b)에는 흡수율이 높은 알루미나의 함유량이 높고, 제1 파트(112b) 및 제3 파트(116)는 흡수율이 낮은 규조토 함유량이 높은 재질로 형성할 수 있다. 반대로, 제2 파트(114b)에는 흡수율이 낮은 규조토의 함유량이 높고, 제1 파트(112b) 및 제3 파트(116)는 흡수율이 높은 알루미나 함유량이 높은 재질로 형성할 수도 있다Even when the ceramic body consists of three parts, the ceramic component and porosity of the three parts can be all changed as necessary, and the second part 114b has a high content of alumina having a high water absorption rate, and the first part 112b ) And the third part 116 may be formed of a material having a high content of diatomaceous earth having a low absorption rate. Conversely, the second part 114b has a high content of diatomaceous earth having a low absorption rate, and the first part 112b and the third part 116 may be formed of a material having a high alumina content having a high absorption rate.
본 발명에 따른 세라믹 히터는, 가열 코일이 세라믹 바디를 가열하고, 세라믹 바디가 간접적으로 액상에 열을 전달하기 때문에, 기화되는 입자의 크기를 작게 할 수 있다는 장점이 있다. 또한, 세라믹 바디는 단일 재료로 이루어지거나, 2중, 3중의 다른 재료로 만들 수 있다. 예를 들어 가열 코일의 내측에 위치하는 세라믹 바디는 Al2O3 소재로 이루어지고, 가열 코일의 외측에 위치하는 세라믹 바디는 SiO2로 이루어지도록 2중으로 구성할 수 있다. 이렇게 세라믹 바디의 구성을 단일, 이중, 삼중으로 변경함으로써, 액상의 점성이나 연무량에 따라 다른 가열 양상의 히터를 구비할 수 있다는 장점이 있다. The ceramic heater according to the present invention has an advantage of reducing the size of vaporized particles because the heating coil heats the ceramic body and the ceramic body indirectly transfers heat to the liquid phase. In addition, the ceramic body can be made of a single material, or can be made of two or three different materials. For example, the ceramic body positioned on the inside of the heating coil may be made of Al 2 O 3 material, and the ceramic body positioned on the outside of the heating coil may be made of SiO 2. By changing the configuration of the ceramic body to single, double, or triple, there is an advantage in that a heater having a different heating mode can be provided depending on the viscosity of the liquid or the amount of mist.
도 5은 본 발명의 제4 실시예에 따른 미세입자 발생장치용 세라믹 히터를 도시한 도면이다. 5 is a view showing a ceramic heater for a fine particle generating device according to a fourth embodiment of the present invention.
본 발명의 제4 실시예에 따른 미세입자 발생장치용 세라믹 히터(100c)는, 중공부(140c)의 내경이 상부로 갈수록 좁아지는 형태이다. 종래의 전자담배 카트리지의 파이프 타입 히터는 일자형 원통이며, 이러한 구조의 단점은 기화된 액상이 직접 구강으로 들어오게 된다는 것이다. 가열된 액상이 직접 구강으로 들어올때 액상의 맛이나 뜨거움이 전해져 불쾌감을 가져온다.In the ceramic heater 100c for a fine particle generator according to the fourth embodiment of the present invention, the inner diameter of the hollow portion 140c becomes narrower toward the top. The pipe-type heater of the conventional electronic cigarette cartridge is a straight cylinder, and the disadvantage of this structure is that the vaporized liquid directly enters the oral cavity. When the heated liquid directly enters the oral cavity, the taste or hotness of the liquid is transmitted, causing discomfort.
그러나 본 발명의 제4 실시예에 따른 미세입자 발생장치용 세라믹 히터는 중공부(140c) 내경이 상부로 갈수록 좁아지는 형태이며, 따라서 단면이 사다리꼴 형태이다. 이때, 가열 코일(120c)은 세라믹 바디(100c)의 내주면에 내접하게 배치될 수도 있고, 제1 실시예와 같이 세라믹 바디(100c)의 내주면과 간격을 두고 내측에 매립될 수도 있다.However, in the ceramic heater for a fine particle generator according to the fourth embodiment of the present invention, the inner diameter of the hollow portion 140c becomes narrower toward the top, and thus the cross-section is trapezoidal. In this case, the heating coil 120c may be disposed inwardly on the inner circumferential surface of the ceramic body 100c, or may be buried inside at a distance from the inner circumferential surface of the ceramic body 100c as in the first embodiment.
이러한 사다리꼴, 즉 깔대기 형상의 히터 구조로는 액상의 막힘을 효율적으로 개선해줄 수 있다. 이때 세라믹 바디(100c)의 중공부(140c)의 아래쪽의 직경을 키움으로써 액상의 점성으로 인한 기류홀의 막힘을 개선할 수 있다. 또한 기류 패스를 형성하는 중공부(140c)의 아래쪽 공간이 넓고, 출구 쪽 공간이 좁아 노즐 형상을 가짐으로써, 가열된 연무를 포집하여 흡연자에 풍부한 연무량을 제공할 수 있다. 즉, 세라믹 히터(100c)의 중공부(140c)의 상단 직경을 동일하게 할 때, 하부로 갈수록 직경이 넓어지고 그에 따라 세라믹 히터(100c)의 내주면의 면적이 넓어지게 된다. 즉, 발열면이 넓어지게 됨에 따라 액상이 기화되어 발생하는 미세 입자(B)의 입자수도 많아지게 된다. 또한 흡입 시 중공부(140c)의 상측의 내경이 작아, 액상이 기화되면서 발생되는 액상이 세라믹 바디(100c)의 내주면에 가로막힘으로써 액상의 비산이나 넘침도 막아줄 수 있다. With such a trapezoidal, that is, a funnel-shaped heater structure, clogging of the liquid phase can be efficiently improved. At this time, by increasing the diameter of the lower portion of the hollow portion 140c of the ceramic body 100c, clogging of the airflow hole due to the viscosity of the liquid may be improved. In addition, since the space below the hollow portion 140c forming the airflow path is wide and the space on the outlet side is narrow, it has a nozzle shape, so that the heated mist can be collected to provide an abundant amount of mist to the smoker. That is, when the top diameter of the hollow portion 140c of the ceramic heater 100c is the same, the diameter increases toward the bottom, and accordingly, the area of the inner circumferential surface of the ceramic heater 100c increases. That is, as the heating surface becomes wider, the number of fine particles B generated by vaporization of the liquid phase increases. In addition, since the inner diameter of the upper side of the hollow portion 140c is small during suction, the liquid phase generated when the liquid phase is evaporated is blocked on the inner circumferential surface of the ceramic body 100c, thereby preventing the liquid phase from scattering or overflowing.

Claims (6)

  1. 내부에 중공부를 가지는 원통형 다공성 세라믹 바디;Cylindrical porous ceramic body having a hollow portion therein;
    세라믹 바디의 내주면과 접하지 않도록 세라믹 바디의 내측에 매설된 가열 코일;을 구비하는 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터.A ceramic heater for a fine particle generator, comprising: a heating coil embedded in the ceramic body so as not to contact the inner circumferential surface of the ceramic body.
  2. 제1항에 있어서,The method of claim 1,
    다공성 세라믹 바디는, 가열코일과 내주면 사이의 제1 파트와, 가열코일과 외주면 사이의 제2 파트를 구비하며, 제1 파트와 제2 파트는 서로 다른 특성을 가지는 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터.The porous ceramic body includes a first part between the heating coil and the inner circumferential surface, and a second part between the heating coil and the outer circumferential surface, and the first part and the second part have different characteristics. Ceramic heater.
  3. 제2항에 있어서,The method of claim 2,
    제1 파트와 제2 파트는, 서로 다른 재질로 이루어지는 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터.A ceramic heater for a fine particle generator, characterized in that the first part and the second part are made of different materials.
  4. 제2항에 있어서,The method of claim 2,
    제1 파트와 제2 파트는, 서로 다른 공극률을 가지는 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터.The first part and the second part have different porosities from each other.
  5. 제1항에 있어서,The method of claim 1,
    세라믹 바디의 내부 중공부는, 상부로 갈수록 좁아지는 형태인 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터. Ceramic heater for a fine particle generating device, characterized in that the inner hollow portion of the ceramic body has a shape that becomes narrower toward the top.
  6. 내부에 중공부를 가지는 원통형 다공성 세라믹 바디;Cylindrical porous ceramic body having a hollow portion therein;
    세라믹 바디에 매설된 가열 코일;을 구비하며, And a heating coil embedded in the ceramic body,
    세라믹 바디의 내부 중공부는, 상부로 갈수록 좁아지는 형태인 것을 특징으로 하는 미세입자 발생장치용 세라믹 히터.Ceramic heater for a fine particle generating device, characterized in that the inner hollow portion of the ceramic body has a shape that becomes narrower toward the top.
PCT/KR2020/015035 2019-10-30 2020-10-30 Ceramic heater for fine particle generating device WO2021086111A1 (en)

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KR20200042098 2020-04-07
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KR1020200116034A KR102514300B1 (en) 2019-10-30 2020-09-10 Ceramic heater for microparticle generator
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