KR100724763B1 - A press vacuum type carbon fiber heater manufacturing method and its device, its heater - Google Patents

A press vacuum type carbon fiber heater manufacturing method and its device, its heater Download PDF

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KR100724763B1
KR100724763B1 KR1020050071959A KR20050071959A KR100724763B1 KR 100724763 B1 KR100724763 B1 KR 100724763B1 KR 1020050071959 A KR1020050071959 A KR 1020050071959A KR 20050071959 A KR20050071959 A KR 20050071959A KR 100724763 B1 KR100724763 B1 KR 100724763B1
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carbon fiber
heater
insulating tube
heat
compressed air
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KR1020050071959A
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Korean (ko)
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KR20070016885A (en
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위성점
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위성점
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    • 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—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating 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—Heating 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
    • H05B3/145—Carbon only, e.g. carbon black, graphite
    • 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
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H05B3/08—Heater elements structurally combined with coupling elements or holders having electric connections specially adapted for high temperatures
    • 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—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/16—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being mounted on an insulating base
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
    • 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
    • H05B2203/017—Manufacturing methods or apparatus for heaters

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  • Resistance Heating (AREA)

Abstract

본 발명은 압축 공기식 탄소 섬유히터 제조방법과 그 장치 및 그 히터에 관한 것으로, 탄소 섬유 히터를 제조함에 있어서 그 제조된 히터의 사용이 용이하도록 한 것이다.The present invention relates to a method for producing a compressed air carbon fiber heater, an apparatus thereof, and a heater thereof to facilitate the use of the manufactured heater in manufacturing the carbon fiber heater.

즉, 본 발명은 탄소 섬유히터를 제조함에 있어서, 인슐레이션 튜브와 같은 열 수축 절연튜브의 일측 단부에 탄소 섬유의 일부를 삽입하고 상기 탄소 섬유가 삽입된 부위에서 압축공기를 불어 넣어서 일부 삽입된 탄소 섬유가 압축공기에 의하여 열 수축 절연튜브의 반대 측 단부 까지 삽입되게 한 후 내부에 탄소 섬유가 끼워져 있는 열 수축 절연튜브에 열을 가하여서 제조한 것이다.That is, according to the present invention, a part of the carbon fiber is inserted by inserting a part of the carbon fiber into one end of a heat shrinkable insulating tube such as an insulation tube and blowing compressed air at a site where the carbon fiber is inserted. After the compressed air is inserted to the opposite side end of the heat shrinkable insulating tube is prepared by applying heat to the heat shrinkable insulating tube with the carbon fiber inserted therein.

따라서, 본 발명은 열 수축 절연튜브에 탄소 섬유를 압축공기에 의하여 삽입하고 이를 열 수축시켜서 탄소 섬유와 절연튜브가 융착 되지 않은 피복상태를 유지하여서 탄소 섬유의 결선을 위한 단부 피복의 탈피시 탄소 섬유의 손상 없이 그 탈피가 용이하게 이루어지며 그 사용에 있어서도 별도의 절연재를 사용하지 않아도 되어 그 사용이 매우 용이한 것이다.Accordingly, the present invention is to insert the carbon fiber into the heat shrink insulation tube by compressed air and heat shrink it to maintain the coating state in which the carbon fiber and the insulation tube are not fused, so that the carbon fiber at the time of stripping the end coating for the connection of the carbon fiber The stripping is easily done without damage, and the use of the insulation material is very easy since the use of a separate insulation material is not required.

탄소 섬유 Carbon fiber

Description

압축 공기식 탄소 섬유히터 제조방법과 그 장치 및 그 히터{A press vacuum type carbon fiber heater manufacturing method and its device, its heater}A press vacuum type carbon fiber heater manufacturing method and its device, its heater

도 1 은 본 발명에 따른 일 실시 예를 보인 튜브 피복기의 예시도.1 is an exemplary view of a tube coater showing an embodiment according to the present invention.

도 2 는 본 발명에 따른 일 실시 예를 보인 수축 가열기의 예시도.Figure 2 is an illustration of a shrinkage heater showing an embodiment according to the present invention.

도 3 은 본 발명에 따른 일 실시 예를 보인 탄소 섬유히터의 사시도.Figure 3 is a perspective view of a carbon fiber heater showing an embodiment according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 탄소 섬유히터10: carbon fiber heater

11 : 탄소 섬유 12 : 열 수축 절연튜브11: carbon fiber 12: heat shrink insulation tube

20 : 타래20: skein

110 : 가압탱크 111 : 착탈캡110: pressure tank 111: removable cap

120 : 가압 삽입관120: pressure insertion tube

130 : 콤프레셔 131 : 차단밸브130: compressor 131: shutoff valve

200 : 수축 가열기200: shrink heater

본 발명은 압축 공기식 탄소 섬유히터 제조방법과 그 장치 및 그 히터에 관한 것으로, 더욱 상세하게는 인슐레이션 튜브와 같은 열 수축 절연튜브의 일측 단부에 탄소 섬유의 일부를 삽입하고 상기 탄소 섬유가 삽입된 부위에서 압축공기를 불어 넣어서 일부 삽입된 탄소 섬유가 압축공기에 의하여 열 수축 절연튜브의 반대 측 단부 까지 삽입되게 한 후 내부에 탄소 섬유가 끼워져 있는 열 수축 절연튜브에 열을 가하여서 수축 밀착시켜서 탄소 섬유와 열 수축 절연튜브가 일체화되지 않은 피복상태를 유지하여 전원 결선을 위한 단부의 피복 탈피시 탄소 섬유의 손상 없이 이루어질 수 있도록 함을 목적으로 한 것이다.The present invention relates to a method for manufacturing a compressed air carbon fiber heater, a device thereof and a heater thereof, and more particularly, a part of the carbon fiber is inserted into one end of a heat shrinkable insulating tube such as an insulation tube, and the carbon fiber is inserted. The compressed air is blown from the site so that some inserted carbon fiber is inserted to the opposite end of the heat shrinkable insulation tube by the compressed air. The purpose is to maintain the uncoated fiber and the heat shrinkable insulation tube without damaging the carbon fiber during stripping of the ends for power connection.

일반적으로, 전기장판 등과 같은 전열기구에 사용되는 히터는 내부에 니크롬선과 같은 열선이 들어가고 그 외부에 실리콘이 피복된 것이 주로 사용되고 있다.In general, a heater used for a heating device such as an electric field plate is mainly used in which a heating wire such as nichrome wire enters and silicon is coated on the outside thereof.

이상과 같은 피복 히터는 전원 공급시 그 발열 온도가 너무 높아 전기의 공급을 연속적으로 차단시켜야 하는 등 그 사용에 많은 불편함이 따르는 문제점이 있었다.The sheathed heater as described above has a problem in that the heat generation temperature is too high at the time of power supply, so that the supply of electricity must be continuously interrupted, and the inconvenience of using the sheath heater is large.

이에 반하여 탄소 섬유는 전원을 인가하여도 그 발열이 과도하게 이루어지지 않아 장시간 사용하여도 과열손상이 발생하지 않아 이를 사용한 전열기구 등이 많이 제조되어 사용되고 있다.On the contrary, the carbon fiber does not excessively generate heat even when a power is applied, and thus a heat transfer device using the same has been manufactured and used.

상기한 바와 같이 탄소 섬유를 이용한 전열기구는 탄소 섬유의 절연코팅시 단부 피복의 탈피가 용이하지 않아 상기 탄소 섬유를 절연시트에 배선하고 이를 합지한 탄소 섬유 히터시트를 사용하고 있다.As described above, the heat transfer mechanism using carbon fiber is not easy to peel off the end coating during the insulation coating of the carbon fiber, so that the carbon fiber is wired to the insulating sheet and the carbon fiber heater sheet is laminated.

그러나, 상기한 바와 같이 탄소 섬유 히터시트는 그 제조상태가 판상의 시트로 이루어져 있어 그 사용범위가 제한되는 문제점이 있었다.However, as described above, the carbon fiber heater sheet has a problem in that its manufacturing state is made of a plate-like sheet and its use range is limited.

이에, 본 발명은 탄소 섬유 히터를 제조함에 있어서 그 제조된 히터의 사용이 용이하도록 한 것이다.Accordingly, the present invention is to facilitate the use of the manufactured heater in the production of a carbon fiber heater.

즉, 본 발명은 탄소 섬유히터를 제조함에 있어서, 인슐레이션 튜브와 같은 열 수축 절연튜브의 일측 단부에 탄소 섬유의 일부를 삽입하고 상기 탄소 섬유가 삽입된 부위에서 압축공기를 불어 넣어서 일부 삽입된 탄소 섬유가 압축공기에 의하여 열 수축 절연튜브의 반대 측 단부 까지 삽입되게 한 후 내부에 탄소 섬유가 끼워져 있는 열 수축 절연튜브에 열을 가하여서 제조한 것이다.That is, according to the present invention, a part of the carbon fiber is inserted by inserting a part of the carbon fiber into one end of a heat shrinkable insulating tube such as an insulation tube and blowing compressed air at a site where the carbon fiber is inserted. After the compressed air is inserted to the opposite side end of the heat shrinkable insulating tube is prepared by applying heat to the heat shrinkable insulating tube with the carbon fiber inserted therein.

따라서, 본 발명은 열 수축 절연튜브에 탄소 섬유를 압축공기에 의하여 삽입하고 이를 열 수축시켜서 탄소 섬유와 절연튜브가 융착 되지 않은 피복상태를 유지하여서 탄소 섬유의 결선을 위한 단부 피복의 탈피시 탄소 섬유의 손상 없이 그 탈피가 용이하게 이루어지며 그 사용에 있어서도 별도의 절연재를 사용하지 않아도 되어 그 사용이 매우 용이한 것이다.Accordingly, the present invention is to insert the carbon fiber into the heat shrink insulation tube by compressed air and heat shrink it to maintain the coating state in which the carbon fiber and the insulation tube are not fused, so that the carbon fiber at the time of stripping the end coating for the connection of the carbon fiber The stripping is easily done without damage, and the use of the insulation material is very easy since the use of a separate insulation material is not required.

이하, 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.

본 발명은 탄소 섬유를 히터로 사용함에 있어서 그 사용과 결선을 위한 피복의 탈피가 용이하도록 한 것으로, 탄소 섬유히터를 제조함에 있어서, 인슐레이션 튜브와 같은 열 수축 절연튜브(12)의 일 측 단부에 탄소 섬유(11)를 일부 삽입하고 상기 탄소 섬유(11)가 삽입된 부위에서 압축공기를 불어 넣어서 일부 삽입된 탄소 섬유(11)가 압축공기에 의하여 열 수축 절연튜브(12)의 반대 측 단부 까지 삽입되게 한 후 내부에 탄소 섬유(11)가 끼워져 있는 열 수축 절연튜브(12)에 열을 가하여서 탄소 섬유의 외부에 융착되지 않은 상태로 열 수축 절연튜브(12)가 피복된 탄소 섬유히터(10)가 제조되는 것이다.The present invention is to facilitate the stripping of the coating for use and connection in the use of carbon fiber as a heater, in the manufacture of carbon fiber heater, at one end of the heat shrinkable insulation tube 12, such as insulation tube By partially inserting the carbon fiber 11 and blowing compressed air at the portion where the carbon fiber 11 is inserted, the partially inserted carbon fiber 11 is compressed to the opposite side end of the heat shrinkable insulating tube 12 by the compressed air. After being inserted, the carbon fiber heater coated with the heat shrinkable insulation tube 12 without being fused to the outside of the carbon fiber by applying heat to the heat shrinkable insulation tube 12 having the carbon fiber 11 inserted therein ( 10) is manufactured.

한편, 상기한 바와 같은 탄소 섬유히터(10)의 제조장치는 튜브피복기와, 열 수축 절연튜브를 가열 수축시키는 수축가열기로 구성되는 것으로, 상기 튜브피복기는 탄소 섬유(11)가 권취된 타래(20)가 중앙부위에 고정설치되며 일정 체적의 압력용기로 이루어진 가압탱크(110)와, 상기 가압탱크(110)의 내부에 설치된 타래(20)의 탄소 섬유(11) 일부가 삽입되게 가압탱크(110)의 전방측에 돌출설치되며 돌출 단부에 열 수축 절연튜브(12)가 끼워 결합되는 가압 삽입관(120) 및 상기 가압탱크로 압축공기를 공급하는 콤프레셔(130)로 구성되는 것으로서, 상기 가압탱크(110)는 타래(20)의 장 탈착을 위하여 상기 타래(20) 장착 부위 또는 가압 삽입관(120) 연결부위 중 일측이 나사 결합등과 같은 체결수단에 의하여 착탈 가능하게 형성한 착탈캡(111)로 구성하여 실시함이 바람직하며,On the other hand, the manufacturing apparatus of the carbon fiber heater 10 as described above is composed of a tube coating machine, and a shrinkage heater for heating and shrinking the heat shrink insulation tube, the tube coating machine is wound on the coil 20, the carbon fiber 11 The pressure tank 110 is fixedly installed at the center portion and pressurized tank 110 made of a predetermined volume of pressure vessel, and a portion of carbon fiber 11 of the tuft 20 installed inside the pressure tank 110 is inserted. And a pressure insertion tube 120 to which the heat shrinkable insulating tube 12 is fitted to the protrusion end, and a compressor 130 for supplying compressed air to the pressure tank. 110 is a detachable cap 111 that is detachably formed by a fastening means such as a screw coupling, etc., one side of the attachment portion 20 or the pressure insertion tube 120 connection portion for the intestinal desorption of the tuft (20). Is implemented by Straight, and

상기 콤프레셔(130)에서 압축공기가 공급되는 배관상에는 차단밸브(131)가 구비되어 있는 것이다.A shutoff valve 131 is provided on the pipe through which the compressed air is supplied from the compressor 130.

그리고, 상기 수축 가열기(200)는 내부에 탄소 섬유(11)가 삽입되어 이송되는 열 수축 절연튜브(12)에 열풍을 가할 수 있게 구성된 통상의 열풍기로 구성되는 것이다.In addition, the shrinkage heater 200 is composed of a conventional hot air blower configured to apply hot air to the heat shrinkable insulating tube 12 through which the carbon fiber 11 is inserted and transported therein.

상기한 바와 같이 인슐레이션 튜브와 같은 열 수축 절연튜브(12)의 일 측 단부에 탄소 섬유(11)를 일부 삽입하고 상기 탄소 섬유(11)가 삽입된 부위에서 압축공기를 불어 넣어서 일부 삽입된 탄소 섬유(11)가 압축공기에 의하여 열 수축 절연튜브(12)의 반대 측 단부 까지 삽입되게 한 후 내부에 탄소 섬유(11)가 끼워져 있는 열 수축 절연튜브(12)에 열을 가하여서 탄소 섬유의 외부에 융착되지 않은 상태로 열 수축 절연튜브(12)가 피복된 탄소 섬유히터(10)가 제조된 본 발명에 따른 탄소 섬유히터(10)는 외부에 절연 튜브가 피복되어 있어서 그 사용에 있어 별도의 절연재를 사용하지 않고 사용이 가능하며 결선을 위한 단부 피복의 탈피시 내부의 탄소 섬유(11)는 손상되지 않고 절연튜브만 탈피되게 되는 것이다.As described above, a part of the carbon fiber 11 is inserted into one end of the heat shrinkable insulating tube 12 such as an insulation tube, and the carbon fiber is partially inserted by blowing compressed air at the site where the carbon fiber 11 is inserted. (11) is inserted into the opposite side end of the heat shrinkable insulating tube (12) by compressed air, and then heat is applied to the heat shrinkable insulating tube (12) in which the carbon fiber (11) is inserted. The carbon fiber heater 10 according to the present invention, in which the carbon fiber heater 10 coated with the heat shrinkable insulation tube 12 is manufactured in a state in which the heat shrinkable insulation tube 12 is not fused to the outside, is coated with an insulation tube on the outside thereof. It is possible to use without using an insulating material, and when stripping the end coating for wiring, the inner carbon fiber 11 is not damaged and only the insulating tube is stripped.

따라서, 본 발명은 열 수축 절연튜브에 탄소 섬유를 압축공기에 의하여 삽입 하고 이를 열 수축시켜서 탄소 섬유와 절연튜브가 융착 되지 않은 피복상태를 유지하여서 탄소 섬유의 결선을 위한 단부 피복의 탈피시 탄소 섬유의 손상 없이 그 탈피가 용이하게 이루어지며 그 사용에 있어서도 별도의 절연재를 사용하지 않아도 되어 그 사용이 매우 용이한 것이다.Accordingly, the present invention is to insert the carbon fiber into the heat shrink insulation tube by compressed air and heat shrink it to maintain the coating state in which the carbon fiber and the insulation tube are not fused, so that the carbon fiber at the time of stripping the end coating for the connection of the carbon fiber The stripping is easily done without damage, and the use of the insulation material is very easy since the use of a separate insulation material is not required.

Claims (3)

탄소 섬유히터를 제조함에 있어서, In manufacturing carbon fiber heaters, 열 수축 절연튜브(12)의 일 측 단부에 탄소 섬유(11)를 일부 삽입하고 상기 탄소 섬유(11)가 삽입된 부위에서 압축공기를 불어 넣어서 일부 삽입된 탄소 섬유(11)가 압축공기에 의하여 열 수축 절연튜브(12)의 반대 측 단부 까지 삽입되게 한 후 내부에 탄소 섬유(11)가 끼워져 있는 열 수축 절연튜브(12)에 열을 가하여서 탄소 섬유의 외부에 융착되지 않은 상태로 열 수축 절연튜브(12)가 피복된 탄소 섬유히터(10)가 제조되는 것을 특징으로 하는 압축 공기식 탄소 섬유히터 제조방법.The carbon fiber 11 is partially inserted into one end of the heat-shrink insulating tube 12 and blown compressed air at a portion where the carbon fiber 11 is inserted, thereby compressing the partially inserted carbon fiber 11 by the compressed air. After the heat shrinkable insulating tube 12 is inserted to the opposite end, heat is applied to the heat shrinkable insulating tube 12 having the carbon fiber 11 inserted therein, thereby heat shrinking without being fused to the outside of the carbon fiber. Method for producing a compressed air carbon fiber heater, characterized in that the carbon fiber heater (10) coated with an insulating tube (12). 탄소 섬유의 외부에 융착되지 않은 상태로 열 수축 절연튜브(12)가 피복된 탄소 섬유히터(10)가 제조하는 탄소 섬유히터의 제조장치는 튜브피복기와, 열 수축 절연튜브를 가열 수축시키는 수축가열기로 구성하되, The apparatus for manufacturing a carbon fiber heater manufactured by the carbon fiber heater 10 coated with the heat shrinkable insulating tube 12 without being fused to the outside of the carbon fiber includes a tube coater and a shrinkage heater for heating and shrinking the heat shrinkable insulating tube. But with 상기 튜브피복기는 탄소 섬유(11)가 권취된 타래(20)가 중앙부위에 고정설치되며 일정 체적의 압력용기로 이루어진 가압탱크(110)와, 상기 가압탱크(110)의 내부에 설치된 타래(20)의 탄소 섬유(11) 일부가 삽입되게 가압탱크(110)의 전방측에 돌출설치되며 돌출 단부에 열 수축 절연튜브(12)가 끼워 결합되는 가압 삽입관(120) 및 상기 가압탱크로 압축공기를 공급하는 콤프레셔(130)로 구성한 것을 특징으로 하는 압축 공기식 탄소 섬유히터 제조장치.The tube coating machine is a pressurized tank 110, in which a coil 20 in which carbon fiber 11 is wound, is fixedly installed at a central portion, and is formed of a pressure vessel having a predetermined volume, and a tuft 20 installed inside the pressurized tank 110. And a pressurized insertion tube 120 and a compressed air into the pressurized tank, which are installed to protrude on the front side of the pressurizing tank 110 so that a part of the carbon fiber 11 of the c) is inserted into the heat shrinkable insulating tube 12. Compressed air-type carbon fiber heater manufacturing apparatus comprising a compressor 130 for supplying. 열 수축 절연튜브(12)의 일 측 단부에 탄소 섬유(11)를 일부 삽입하고 상기 탄소 섬유(11)가 삽입된 부위에서 압축공기를 불어 넣어서 일부 삽입된 탄소 섬유(11)가 압축공기에 의하여 열 수축 절연튜브(12)의 반대 측 단부 까지 삽입되게 한 후 내부에 탄소 섬유(11)가 끼워져 있는 열 수축 절연튜브(12)에 열을 가하여서 탄소 섬유의 외주연에 열 수축 절연튜브(20)가 열 수축에 의하여 융착 되지 않은 씌워진 상태로 피복 형성된 것을 특징으로 하는 탄소 섬유히터.The carbon fiber 11 is partially inserted into one end of the heat-shrink insulating tube 12 and blown compressed air at a portion where the carbon fiber 11 is inserted, thereby compressing the partially inserted carbon fiber 11 by the compressed air. After the heat shrinkable insulating tube 12 is inserted to the opposite side end, the heat shrinkable insulating tube 12 is applied to the outer circumference of the carbon fiber by applying heat to the heat shrinkable insulating tube 12 into which the carbon fiber 11 is inserted. ) Is a carbon fiber heater, characterized in that the cover is formed in a covered state that is not fused by heat shrink.
KR1020050071959A 2005-08-05 2005-08-05 A press vacuum type carbon fiber heater manufacturing method and its device, its heater KR100724763B1 (en)

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Citations (2)

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Publication number Priority date Publication date Assignee Title
JPH11185938A (en) 1997-12-19 1999-07-09 Matsushita Electric Ind Co Ltd Heating body
JPH11214126A (en) 1998-01-29 1999-08-06 Matsushita Electric Ind Co Ltd Heater element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11185938A (en) 1997-12-19 1999-07-09 Matsushita Electric Ind Co Ltd Heating body
JPH11214126A (en) 1998-01-29 1999-08-06 Matsushita Electric Ind Co Ltd Heater element

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