KR20020038439A - Sheet exothermic body - Google Patents
Sheet exothermic body Download PDFInfo
- Publication number
- KR20020038439A KR20020038439A KR1020010000138A KR20010000138A KR20020038439A KR 20020038439 A KR20020038439 A KR 20020038439A KR 1020010000138 A KR1020010000138 A KR 1020010000138A KR 20010000138 A KR20010000138 A KR 20010000138A KR 20020038439 A KR20020038439 A KR 20020038439A
- Authority
- KR
- South Korea
- Prior art keywords
- oxide
- heating element
- thin film
- planar heating
- substrate
- Prior art date
Links
Classifications
-
- 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
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
- H05B3/265—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an inorganic material, e.g. ceramic
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/009—Heaters using conductive material in contact with opposing surfaces of the resistive element or resistive layer
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/028—Heaters specially adapted for trays or plates to keep food or liquids hot
Abstract
Description
본 발명은 안정성이 우수한 면상 발열체에 관한 것이다.The present invention relates to a planar heating element excellent in stability.
종래부터, 기재상에 산화아연 또는 산화주석의 박막을 형성한 면상 발열체가 제공되고 있다.DESCRIPTION OF RELATED ART Conventionally, the surface heating element which formed the thin film of zinc oxide or tin oxide on the base material is provided.
그러나, 상기 면상 발열체는 안정성이 부족하고, 반복통전가열에 의해 저항값이 점점 올라간다라는 문제점이 있었다.However, the planar heating element lacks stability and has a problem in that the resistance value gradually increases due to repeated energizing heating.
본 발명은 상기 종래의 과제를 해결하기 위한 수단으로서, 산화아연과 산화주석을 포함하는 박막을 기재상에 형성한 면상 발열체를 제공하는 것이다. 상기 기재는 통상의 세라믹, 유리, 도자기 또는 플라스틱이다.The present invention provides a planar heating element in which a thin film containing zinc oxide and tin oxide is formed on a substrate as a means for solving the conventional problems. The substrate is conventional ceramic, glass, porcelain or plastic.
도 1은 실시예1에 있어서의 승온테스트의 시간-온도 곡선도이다.1 is a time-temperature curve diagram of a temperature increase test in Example 1. FIG.
도 2는 실시예2에 있어서의 승온테스트의 시간-온도 곡선도이다.FIG. 2 is a time-temperature curve diagram of a temperature increase test in Example 2. FIG.
도 3은 실시예3에 있어서의 승온테스트의 시간-온도 곡선도이다.3 is a time-temperature curve diagram of a temperature increase test in Example 3. FIG.
본 발명을 이하에 상세하게 설명한다.This invention is demonstrated in detail below.
본 발명의 면상 발열체는 기재상에 산화아연과 산화주석을 포함하는 박막을 형성한 것이다.The planar heating element of the present invention forms a thin film containing zinc oxide and tin oxide on a substrate.
상기 산화주석으로서는 SnO, Sn3O4, SnO2어느 것이나 포함된다. 상기 산화아연으로서는 ZnO2외 ZnO도 포함된다.Examples of the tin oxide include SnO, Sn 3 O 4 , and SnO 2 . The zinc oxide also includes ZnO 2 and ZnO.
산화아연과 산화주석의 비율은 소정의 면상 발열체의 성질에 의해 여러가지로 설정되어도 좋지만, 통상은 1:99∼99:1 중량비로 넓은 범위에서 안정성이 우수한 면상 발열체가 얻어진다.The ratio of zinc oxide and tin oxide may be set variously depending on the properties of the predetermined planar heating element, but a planar heating element having excellent stability in a wide range is usually obtained in a weight ratio of 1:99 to 99: 1.
상기 산화아연과 산화주석이외에 원하면 산화안티몬, 산화비스머스, 산화납, 산화갈륨, 산화인듐, ITO 등의 다른 금속산화물이 소량 첨가되어도 좋다. 상기 금속산화물로서는 여러가지 원자가의 산화물이 사용될 수 있다.In addition to the zinc oxide and tin oxide, small amounts of other metal oxides such as antimony oxide, bismuth oxide, lead oxide, gallium oxide, indium oxide, and ITO may be added. As the metal oxide, various valence oxides can be used.
또한 본 발명의 박막에는 아연, 주석, 안티몬, 비스머스, 납, 갈륨, 인듐 등의 금속단체가 포함되어도 좋다.In addition, the thin film of the present invention may contain a metal body such as zinc, tin, antimony, bismuth, lead, gallium, indium or the like.
일반적으로 고원자가 산화물은 고정항값을 부여하고, 저원자가 산화물 및 금속단체는 저저항값을 부여한다.In general, high valence oxides give fixed term values, while low valence oxides and metal groups give low resistance values.
본 발명에서 기재로서 사용되는 재료는 일반적으로 운모, 세라믹, 유리, 도자기, 또는 플라스틱이다. 세라믹으로서는 알루미나, 딜코니아, 산화티탄, 탄화규소, 질화규소 등이 예시되고, 플라스틱으로서는 멜라민수지, 요소수지, 페놀수지, 에폭시수지, 우레탄수지 등의 열경화성 수지, 실리콘수지, 불소화비닐수지, 고융점폴리에스테르, 고융점아미드, 폴리아세탈, 폴리카보네이트, 폴리술폰, 폴리에테르술폰, 폴리페닐렌옥시드, 폴리페닐렌설피드, 폴리아릴레이트, 폴리에테르에테르케톤, 폴리아미드이미드, 폴리이미드, 폴리에테르이미드, 폴리아미노비스머레이미드, 메틸펜텐코폴리머, 폴리아미노비스머레이미드, 비스머레이미드-트리아딘계 열경화형 방향족 폴리이미드 등의 엔지니어링플라스틱 등의 내열성 열가소성 수지 등이 예시되지만, 적용온도가 낮은 경우에는, 폴리에텔렌, 폴리프로필렌, 폴리염화비닐, 폴리스틸렌, 저융점폴리에스테르, 저융점폴리아미드 등의 일반적인 열가소성 수지를 사용할 수도 있다.Materials used as substrates in the present invention are generally mica, ceramics, glass, ceramics, or plastics. Examples of the ceramic include alumina, dilconia, titanium oxide, silicon carbide, silicon nitride, and the like. Thermoplastic resins such as melamine resin, urea resin, phenol resin, epoxy resin, urethane resin, silicone resin, fluorinated vinyl resin, and high melting point poly Ester, high melting point amide, polyacetal, polycarbonate, polysulfone, polyethersulfone, polyphenylene oxide, polyphenylene sulfide, polyarylate, polyetheretherketone, polyamideimide, polyimide, polyetherimide, poly Heat-resistant thermoplastic resins, such as engineering plastics, such as an aminobismerimide, a methylpentene copolymer, a polyaminobismerimide, a bismerimide-triadine type thermosetting aromatic polyimide, etc. are illustrated, but when an application temperature is low, it is polyether. Ethylene, polypropylene, polyvinyl chloride, polystyrene, low melting polyester, General thermoplastic resins, such as low melting polyamide, can also be used.
본 발명의 면상 발열체는 주석 및 아연과 원하면 상기 외의 금속을 염화물, 황화물, 수산화물, 산화수산화물, 탄산수산화물, 탄산염, 중탄산염, 슈산염, 알코시드 등 가열에 의해 금속산화물을 부여하는 금속화합물의 형태로 물 또는 유기용제에 용해한다. 상기 유기용제로서는 예를 들면 메탄올, 에탄올, 이소프로판올, n-부탄올, 에틸렌글리콜, 프로필렌글리콜, 글리세린 등의 알콜류, 에틸에테르, 메틸에틸에테르 등의 에틸류, 초산메틸, 초산에틸, 초산n-부틸 등의 초산에스테르류, 벤젠, 톨루엔, 크실렌 등의 방향족류, 아세톤, 메틸에틸케톤, 메틸이소부틸케톤 등의 케톤류, 필리딘, 아닐린 등이 사용된다. 상기 유기용제는 2종류 이상 또는 물과 혼합해서 사용되어도 좋다.The planar heating element of the present invention is in the form of a metal compound which imparts a metal oxide by heating tin, zinc and other metals, if desired, such as chlorides, sulfides, hydroxides, oxide hydroxides, carbonates, carbonates, bicarbonates, hydrochlorides, and alkosides. Soluble in water or organic solvents. As said organic solvent, For example, alcohols, such as methanol, ethanol, isopropanol, n-butanol, ethylene glycol, propylene glycol, glycerin, ethyl, such as ethyl ether and methyl ethyl ether, methyl acetate, ethyl acetate, n-butyl acetate, etc. Acetic acid esters, aromatics such as benzene, toluene and xylene, ketones such as acetone, methyl ethyl ketone and methyl isobutyl ketone, filidine and aniline are used. The said organic solvent may be used in mixture of 2 or more types, or water.
특히 알콜류, 에테르류, 케톤류 등의 함산소용제는 상기 금속화합물 중에서도 금속염화물에 대해서 양호한 용제성을 나타낸다.In particular, oxygen-containing solvents such as alcohols, ethers, ketones, and the like exhibit good solvent resistance to metal chlorides.
상기 금속염화물의 용액에는 또한 저원자가 산화물 또는 금속단체를 생성해서 박막의 저항을 낮추기 위해, 불소화암모늄, 불소화수소산 등의 불소화물, 사과산, 구연산, 주석산 등의 히드록시카르본산 등이 첨가되어도 좋다.To the solution of the metal chloride, fluorides such as ammonium fluoride and hydrofluoric acid, hydroxycarboxylic acids such as malic acid, citric acid, tartaric acid, and the like may be added to form a low-atomic oxide or a metal element to lower the resistance of the thin film.
또한 상기 용액에는, 예를 들면 폴리아크릴산, 폴리메타크릴산, 폴리아크릴산 나트륨, 폴리아크릴산 칼륨, 폴리아크릴산 암모늄, 폴리메타크릴산 나트륨, 폴리아크릴아미드, 폴리비닐알콜 등의 수용성 수지, 폴리메틸메타크릴레이트, 폴리스틸렌, 폴리초산비닐 등의 열가소성 수지, 아크릴고무, 부틸고무, 부타디엔고무, 이소프렌고무, 클로로프렌고무, 폴리이소부틸렌고무, 폴리부텐고무, 이소부텐-이소프렌고무, 아크릴레이트-부타디엔고무, 스틸렌-부타디엔고무, 아크릴로니트릴-부타디엔고무, 필리딘-부타디엔고무, 스틸렌-이소프렌고무, 아크릴로니트릴-클로로프렌고무, 스틸렌-클로로프렌고무 등의 합성고무 등이 증점제로서 첨가되어도 좋다. 증점제를 첨가함으로써 상기 용액의 도포량을 늘리고, 막두께를 증대시킬 수 있다.Moreover, in the said solution, water-soluble resin, such as polyacrylic acid, polymethacrylic acid, sodium polyacrylate, potassium polyacrylate, ammonium polyacrylate, sodium polymethacrylate, polyacrylamide, polyvinyl alcohol, polymethylmethacryl, for example. Thermoplastic resins such as latex, polystyrene, polyvinyl acetate, acrylic rubber, butyl rubber, butadiene rubber, isoprene rubber, chloroprene rubber, polyisobutylene rubber, polybutene rubber, isobutene-isoprene rubber, acrylate-butadiene rubber, styrene Synthetic rubbers, such as butadiene rubber, acrylonitrile-butadiene rubber, filidine-butadiene rubber, styrene-isoprene rubber, acrylonitrile-chloroprene rubber, and styrene-chloroprene rubber, may be added as a thickener. By adding a thickener, the coating amount of the solution can be increased, and the film thickness can be increased.
상기 용액을 상기 기재표면에 도포하기 위해서는, 스프레이도장, 롤코터도장, 나이프코터도장, 커텐플로우도장, 딥핑도장, 스크린인쇄 등의 일반적인 도포방법이 적용된다. 도포후에는 원하면 상기 도막을 상온 또는 가열해서 건조시킨 후에 소성을 행한다. 소성은 통상 200∼700℃, 바람직하게는 250∼650℃의 온도에서 행해진다.In order to apply the solution to the substrate surface, a general coating method such as spray coating, roll coating coating, knife coating coating, curtain flow coating, dipping coating, screen printing, or the like is applied. After application, if desired, the coating film is dried at room temperature or by heating, followed by firing. Firing is usually carried out at a temperature of 200 to 700 ° C, preferably 250 to 650 ° C.
이렇게 해서 기재상에 형성된 박막은 통상 직류 또는 교류에서 3∼380볼트의 광범위한 전압을 가하면, 빠르게 승온하며, 최고온도는 900℃정도로 된다. 그리고 장시간 연속적 또는 단속적인 통전에 의해서도 저항값은 거의 변화하지 않고 안정되고, 또 전력소비량도 종래의 것보다 적다.In this way, the thin film formed on the substrate is rapidly heated when a wide voltage of 3 to 380 volts is applied by direct current or alternating current, and the maximum temperature is about 900 ° C. In addition, resistance value remains almost unchanged even by continuous or intermittent energization for a long time, and power consumption is also smaller than that of the conventional one.
상기 박막의 저항값을 조절하기 위해서는 상기 주석 및 아연의 금속화합물에 다시 인듐이나 안티몬의 금속화합물 또는 상기 불소화물, 히드록시카르본산 등을 첨가한다. 인듐화합물의 경우는 주석화합물과 함께 소성에 의해 ITO가 생성되고, 박막의 저항이 높아지고, 또 안티몬화합물이나 특히 불소화물은 주석의 저항을 낮추고, 박막에 저저항을 부여한다.In order to adjust the resistance of the thin film, a metal compound of indium or antimony or the fluoride, hydroxycarboxylic acid, etc. is added to the metal compound of tin and zinc. In the case of an indium compound, ITO is produced by firing together with the tin compound, and the resistance of the thin film is increased, and the antimony compound and especially fluoride lower the resistance of tin and impart low resistance to the thin film.
(실시예1)Example 1
염화아연 10g, 염화제2주석수화물15g을 정제에탄올100g에 용해했다.10 g of zinc chloride and 15 g of dibasic tin chloride were dissolved in 100 g of purified ethanol.
60mm×130mm의 SiC기판상에 상기 용액을 스프레이도포하고, 80℃, 30분 가열건조시키고, 그후에는 420℃, 30분 소성해서 상기 기재표면에 산화아연과 산화주석으로 이루어진 박막을 형성했다.The solution was spray-coated on a 60 mm x 130 mm SiC substrate, dried at 80 ° C. for 30 minutes, and then calcined at 420 ° C. for 30 minutes to form a thin film of zinc oxide and tin oxide on the surface of the substrate.
이렇게 해서 얻어진 면상 발열체의 양단에 은페이스트를 도포하고, 그 위에 동박을 피복해서 전극을 형성했다.Silver paste was apply | coated to the both ends of the planar heating body obtained in this way, and copper foil was coat | covered on it, and the electrode was formed.
온도 27℃, 습도 80%RH의 조건하에서 상기 면상 발열체의 전극에 직류13.5볼트, 600mA의 전류를 통해 박막의 저항값을 측정한 결과 22.5Ω였다. 또한 동일조건하에서 승온테스트를 행한 결과를 도 1에 나타낸다.It was 22.5 ohms when the resistance value of the thin film was measured through the current of 13.5 volts of DC and 600 mA to the electrode of the said planar heating element on conditions of the temperature of 27 degreeC, and 80% RH humidity. Moreover, the result of having performed the temperature test under the same conditions is shown in FIG.
도 1에 의하면 통전후, 면상 발열체의 표면온도는 대략 10분에서 77℃에 이르고, 이후 평형했다. 15분후에 통전을 정지했다.According to FIG. 1, after energization, the surface temperature of the planar heating element reached 77 ° C. at approximately 10 minutes, and was then equilibrated. After 15 minutes, the electricity was stopped.
상기 승온테스트를 100회 반복했지만, 매회의 테스트에서도 도 1에 나타낸 시간-온도 곡선은 거의 변화하지 않고, 100회 반복한 후의 박막의 저항값(22.5Ω)의 상승도 보여지지 않았다.Although the temperature increase test was repeated 100 times, the time-temperature curve shown in FIG. 1 hardly changed in each test, and no increase in the resistance value (22.5 kPa) of the thin film after 100 repetitions was observed.
상기 면상 발열체에 35℃에서 50g/l의 염화나트륨용액을 24시간 분무하여, 그후 저항값을 측정했지만 저항값(22.5Ω)의 변화는 없었다.The planar heating element was sprayed with a sodium chloride solution of 50 g / l at 35 ° C. for 24 hours, after which the resistance value was measured, but there was no change in the resistance value (22.5 kPa).
이 면상 발열체의 열전환율은 93%이고, 절전작용이 높은 것이 확인되었다.The heat conversion rate of this planar heating element was 93%, and it was confirmed that the power saving action was high.
(실시예2)Example 2
탄산수산화아연 5g, 산화이수산화주석 20g, 3염화인듐 1g을 아세톤 100g에 용해하고, 다시 증점제로서 폴리메틸메타크릴레이트 15중량%를 용해한 초산에틸용액 10g을 첨가했다.5 g of zinc carbonate, 20 g of tin dioxide hydroxide, and 1 g of indium trichloride were dissolved in 100 g of acetone, and 10 g of ethyl acetate solution, in which 15 wt% of polymethyl methacrylate was dissolved, was added as a thickener.
상기 용액을 60mm×90mm의 에폭시수지판 표면에 실크스크린인쇄에 의해 도포하고, 1일동안 실온에 방치해서 건조시키고, 그후 480℃, 20분 소성해서 상기 기재표면에 산화아연과 산화주석과 산화인듐과 약간의 ITO로 이루어진 박막을 형성했다.The solution was applied to the surface of a 60 mm x 90 mm epoxy resin plate by silk screen printing, left to stand at room temperature for 1 day, dried, and then calcined at 480 DEG C for 20 minutes, followed by zinc oxide, tin oxide and indium oxide. And a thin film of ITO was formed.
이렇게 해서 얻어진 면상 발열체의 양단에 실시예1과 마찬가지로 해서 전극을 형성했다.Electrodes were formed on both ends of the planar heating element thus obtained in the same manner as in Example 1.
온도 29℃, 습도 90%RH의 조건하에서 상기 면상 발열체의 전극에 직류12볼트, 400mA의 전류를 통해 박막의 저항값을 측정한 결과 30Ω였다. 또한 동일 조건하에서 승온테스트를 행한 결과를 도 2에 나타낸다.The resistance value of the thin film was measured at a resistance of 30 占 폚 through a direct current of 12 volts and 400 mA to the electrode of the planar heating element under the condition of a temperature of 29 DEG C and a humidity of 90% RH. Moreover, the result of having performed the temperature test under the same conditions is shown in FIG.
도 2에 의하면, 통전후 면상 발열체의 표면온도는 대략 15분에서 85℃에 이르고, 이후 평형했다. 20분후에 통전을 정지했다.According to FIG. 2, the surface temperature of the surface heating element after energization reached 85 degreeC in about 15 minutes, and it balanced after that. After 20 minutes the power was stopped.
상기 승온테스트를 100회 반복했지만, 매회의 테스트에서도 도 2에 나타낸 시간-온도 곡선은 거의 변화하지 않고, 100회 반복후의 박막의 저항값(30Ω)의 상승도 보여지지 않았다.Although the temperature increase test was repeated 100 times, the time-temperature curve shown in FIG. 2 hardly changed in each test, and no increase in the resistance value (30 kPa) of the thin film after 100 repetitions was observed.
상기 면상 발열체에 실시예1과 동일한 염수분무시험을 행한 결과, 저항값(30Ω)에 변화는 없었다.As a result of the same salt spray test as in Example 1 on the planar heating element, there was no change in the resistance value (30 Hz).
이 면상 발열체의 열전환율은 90%이고, 절전작용이 높은 것이 확인되었다.It was confirmed that the heat conversion rate of the planar heating element was 90%, and the power saving action was high.
(실시예3)Example 3
실시예1의 용액에 다시 10중량%의 불소화암모늄수요액 1cc를 추가해서 충분히 혼합했다. 상기 용액을 사용해서 실시예1과 동일한 프로세스에 의해 면상 발열체를 제조했다.1 cc of 10% by weight of ammonium fluoride aqueous solution was further added to the solution of Example 1, and the mixture was sufficiently mixed. The planar heating element was manufactured by the same process as in Example 1 using the above solution.
온도 27℃, 습도 80%RH의 조건하에서 상기 면상 발열체의 전극에 직류 13.5볼트, 600mA의 전류를 통해 박막의 저항값을 측정한 결과 20.4Ω였다. 다시 동일조건하에서 승온테스트를 행한 결과를 도 3에 나타낸다.The resistance of the thin film was measured at a temperature of 27 ° C. and a humidity of 80% RH through a direct current of 13.5 volts and 600 mA to the electrode of the planar heating element, and found to be 20.4 kV. 3 shows the result of the temperature test again under the same conditions.
도 3에 의하면 통전후, 면상 발열체의 표면온도는 대략 10분으로 60℃에 이르고, 이후 평형했다. 14분후에 통전을 정지했다.According to FIG. 3, after energization, the surface temperature of the planar heating element reached 60 ° C. in approximately 10 minutes, and then equilibrated. After 14 minutes, the electricity was stopped.
상기 승온테스트를 100회 반복했지만, 매회의 테스트에서도 도 3에 나타낸 시간-온도 곡선은 거의 변화하지 않고, 100회 반복후의 박막의 저항값(20.4Ω)의 상승도 보여지지 않았다.Although the temperature increase test was repeated 100 times, in each test, the time-temperature curve shown in FIG. 3 hardly changed, and no increase in the resistance value (20.4 kPa) of the thin film after 100 repetitions was observed.
이 면상 발열체의 열전환율은 89%이고, 절전작용이 높은 것이 확인되었다.It was confirmed that the heat conversion rate of this planar heating element was 89%, and the power saving action was high.
본 발명의 면상 발열체는 저렴하게 제공할 수 있고, 게다가 전력소비량은 예를 들면 종래의 티탄산 바륨염의 소결체 박막에 비해 35%이상이나 되고, 또한 승온속도가 크고, 또 장시간의 통전 또는 반복통전에서도 저항값은 거의 변화하지 않고 안정되고, 또한 내수성, 내산성 등 내화학성에도 우수하고, 양호한 내구성을 갖는다.The planar heating element of the present invention can be provided at low cost, and the power consumption is, for example, 35% or more, compared with the conventional sintered thin film of barium titanate salt. The value is almost unchanged, stable, and also excellent in chemical resistance such as water resistance and acid resistance, and has good durability.
본 발명의 면상 발열체는 가정용 온수기, 조리기, 티슈페이퍼나 음식물의 보온기, 오븐, 전열식 다리미 등 각종의 가열제품에 적용된다.The planar heating element of the present invention is applied to various types of heating products such as domestic water heaters, cookers, tissue paper or food warmers, ovens, and electric irons.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000-351265 | 2000-11-17 | ||
| JP2000351265 | 2000-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20020038439A true KR20020038439A (en) | 2002-05-23 |
Family
ID=37479901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020010000138A KR20020038439A (en) | 2000-11-17 | 2001-01-03 | Sheet exothermic body |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20020038439A (en) |
-
2001
- 2001-01-03 KR KR1020010000138A patent/KR20020038439A/en not_active Application Discontinuation
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2008508664A (en) | PTC Thick Film Electric Circuit Controlled Electric Heating Element | |
| WO2012036416A3 (en) | Plane heating element using ceramic glass | |
| US6728479B2 (en) | Panel-type heating element and method for the manufacture thereof | |
| US4939349A (en) | Ceramic thermistor heating element | |
| KR20020038439A (en) | Sheet exothermic body | |
| JP2010021028A (en) | Planar heating element and method of manufacturing the same | |
| KR101525974B1 (en) | a sheet type heating element of substrate | |
| RU113624U1 (en) | THIN FILM ELECTRIC HEATER | |
| JP2002216936A (en) | Plane shape heating body and its manufacturing method | |
| CN207721216U (en) | Electronic cigarette and its heating device | |
| CN114388684B (en) | Self-temperature-limiting electric heating film and preparation method thereof | |
| CN111698796A (en) | Preparation method of repeated scratch-resistant silver nanowire film heater | |
| US2564987A (en) | Electrically conducting coating on glass and other ceramic bodies | |
| CN203057553U (en) | Transparent heat-emission film | |
| NZ510655A (en) | Thin film heating element having a metal oxide layer doped with one rare earth element and being deposited on to a substrate from an organometallic base solution | |
| EP0323827A2 (en) | Electronic electrothermal conversion material, its products and method for production thereof | |
| CN104853458A (en) | Electric heater and electric heating type household appliance | |
| JP2004207212A (en) | Heat generating functional material, its manufacturing method, and heater using it | |
| CN109036712A (en) | A kind of one side coating formula conductive film and preparation method thereof | |
| CN214949803U (en) | Novel heating fan | |
| RU2646421C1 (en) | Thin-film electric heater | |
| JPH043084B2 (en) | ||
| JP2007173038A (en) | Sheet heating element | |
| CN86200695U (en) | Electric heating piece with coating | |
| JPS6237894A (en) | Far infrared ray heater and manufacture thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |