KR20070028489A - Sheet type a heating element of structural multiple - Google Patents

Sheet type a heating element of structural multiple Download PDF

Info

Publication number
KR20070028489A
KR20070028489A KR1020070008453A KR20070008453A KR20070028489A KR 20070028489 A KR20070028489 A KR 20070028489A KR 1020070008453 A KR1020070008453 A KR 1020070008453A KR 20070008453 A KR20070008453 A KR 20070008453A KR 20070028489 A KR20070028489 A KR 20070028489A
Authority
KR
South Korea
Prior art keywords
heating element
carbon
planar heating
silver
paste
Prior art date
Application number
KR1020070008453A
Other languages
Korean (ko)
Inventor
이장훈
이부훈
이관우
Original Assignee
이장훈
이부훈
이관우
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이장훈, 이부훈, 이관우 filed Critical 이장훈
Priority to KR1020070008453A priority Critical patent/KR20070028489A/en
Publication of KR20070028489A publication Critical patent/KR20070028489A/en

Links

Images

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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • 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
    • 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
    • H05B2203/01—Heaters comprising a particular structure with multiple layers
    • 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
    • H05B2203/013—Heaters using resistive films or coatings
    • 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

Landscapes

  • Surface Heating Bodies (AREA)

Abstract

A sheet type heating element of a multiple structure is provided to increase a heating temperature comparing to the sheet type heating element of a single layer structure by multiply forming an insulation fabric having a carbon, silver, and electrode portions. In a sheet type heating element(100) of a multiple structure, a carbon paste is applied to an insulation fabric(115) as various patterns and shapes having a predetermined thickness and is dried. A silver paste is applied to both ends of the carbon applied portion and is dried. The carbon paste is applied to the opposite side of the insulation fabric as the various patterns and shapes having the predetermined thickness again and is dried. The silver paste is applied to both ends of the carbon applied portion(135) and is dried. The upper surface(130) and lower surface of a laminating paper are thermally pressed on both sides of the insulation fabric by forming an electrode on a top part of the silver applied portion(123) with a certain gap.

Description

다중구조의 면상발열체{Sheet type a heating element of structural multiple}Sheet type a heating element of structural multiple

[도 1] 은 종래의 면상발열체를 보인 사시도1 is a perspective view showing a conventional planar heating element

[도 2] 은 종래의 면상발열체를 보인 단면도Figure 2 is a cross-sectional view showing a conventional planar heating element

[도 3] 는 본 발명에 따른 다중구조의 면상발열체를 보인 사시도3 is a perspective view showing a planar heating element of a multi-structure according to the invention

[도 4] 은 본 발명에 따른 다중구조의 면상발열체를 보인 단면도4 is a cross-sectional view showing a planar heating element of a multi-structure according to the invention

[도 5] 는 본 발명에 따른 다른 실시예를 보인 다중구조의 면상발열체 사시도Figure 5 is a planar heating element perspective view of a multi-structure showing another embodiment according to the present invention

[도 6] 는 본 발명에 따른 다른 실시예를 보인 다중구조의 면상발열체 단면도6 is a cross-sectional view of the multi-faceted heating element showing another embodiment according to the present invention

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

100 : 면상발열체 135 : 카본부100: planar heating element 135: carbon part

112 : 전극 115 : 절연성 원단112: electrode 115: insulating fabric

123 : 실버부 130 : 라미네이팅 원단 상면123: silver part 130: upper surface of the laminating fabric

132 : 라미네이팅 원단 하면 140 : 라미네이팅 원단 상면 2132: the bottom surface of the laminating fabric 140: top surface of the laminating fabric 2

142 : 라미네이팅 원단 하면 2142: laminating fabric 2

본 발명은 다중구조의 면상발열체에 관한 것으로, 더 상세하게는 절연성원단에 저항발열체인 카본페이스트와 실버페이스트를 형성하고, 전류를 인가시켜 주는 전극부 등이 다중구조의 면상발열체에 관한 것이다.The present invention relates to a planar heating element having a multi-structure, and more particularly to a planar heating element having a multi-structure, such as an electrode unit for forming a carbon paste and a silver paste, which is a resistance heating element in an insulating fabric and applying a current.

일반적으로 생활 난방용이나 성에제거용, 도로융설용, 발열기능이 요구되는 곳에 면상발열체를 사용하여 원적외선 방사에 따른 인체에 유익함 주고 산업분야에 유용하게 활용하고 있다.In general, the use of a surface heating element in the place where heating or defrosting, road melting snow, heating function is required, it is beneficial to the human body due to far-infrared radiation and is useful for the industrial field.

그러나, 종래의 면상발열체는 절연성 원단에 저항발열체인 카본페이스트를 소정의 넓이와 두께로 인쇄 도포하여 일정시간동안 건조한 후 실버페이스트를 인쇄 도포하고, 전류를 통전하기 위해 전극을 형성시켜 절연성 원단으로 라미네이팅 열압착한 발열체로 온도조절기를 구비하여 전선을 통해 전극에 전원을 통전시키면 발열이 되는데, 이러한, 면상발열체는 카본부가 단일층으로 구성되어 전극에 전원을 인가할 경우 발열 최고 온도까지 도달하는 시간이 장시간 걸리고, 발열온도를 상승시키기 위해선 발열부의 전기저항수치가 낮아져야 함에 따라 소비전력이 증가되는 문제점이 있었다.However, the conventional planar heating element is printed by coating carbon paste, which is a resistive heating element, to a predetermined width and thickness on an insulating fabric, drying for a predetermined time, and then printing and applying silver paste, and forming an electrode to conduct electric current and laminating it with an insulating fabric. A thermocompressed heating element is provided with a temperature controller to generate power when electricity is supplied to the electrode through the wire. The planar heating element has a carbon layer composed of a single layer. It takes a long time, there is a problem in that the power consumption is increased as the electrical resistance value of the heat generating unit to increase the heating temperature.

상기와 같은 종래의 면상발열체의 문제 해결을 위한 본 발명은, 단일층의 구조를 갖는 종래의 면상발열체에 비해 다중으로 형성된 카본부에 의해 정상온도에 도달하는 시간을 향상시키는 점과 동일한 온도를 발생시키는데 필요한 소비전력을 효과적으로 낮춰 경제적인 발열기능을 수행할 수 있는 다중구조의 면상발열체를 제공하는 것이다.The present invention for solving the problem of the conventional planar heating element as described above, generates the same temperature as the point of improving the time to reach the normal temperature by the carbon portion formed in multiple than the conventional planar heating element having a single layer structure It is to provide a multi-layered planar heating element that can effectively lower the power consumption required to perform economic heating function.

본 발명의 다중구조의 면상발열체(100)에 바람직한 실시 예를 설명함에 있어서, 도 1은 종래의 면상발열체를 보인 사시도이고, 도 3는 본 발명에 따른 다중구조의 면상발열체를 보인 사시도이며, 도 3은 본 발명에 따른 다중구조의 면상발열체를 보인 단면도이고, 도 5는 본 발명에 따른 다른 실시예를 보인 다중구조의 면상발열체를 보인 사시도이며, 도 6는 본 발명에 따른 다른 실시예를 보인 다중구조의 면상발열체 단면도로서 첨부된 도면을 참고하여 상세히 설명한다. 도면의 쉬운 이해를 돕도록 주요부분에 대한 부호 설명을 본 발명과 종래의 발명에 동일하게 적용하였다.In describing a preferred embodiment of the planar heating element 100 of the multi-structure of the present invention, Figure 1 is a perspective view showing a conventional planar heating element, Figure 3 is a perspective view showing a planar heating element of a multi-structure according to the present invention, Figure 3 is a cross-sectional view showing a planar heating element of a multi-structure according to the invention, Figure 5 is a perspective view showing a planar heating element of a multi-structure showing another embodiment according to the present invention, Figure 6 shows another embodiment according to the present invention With reference to the accompanying drawings as cross-sectional heating element of a multiple structure will be described in detail. The same reference numerals have been applied to the present invention and the conventional invention to facilitate easy understanding of the drawings.

도 3는 본 발명에 따른 다중구조의 면상발열체(100)를 보인 사시도로, 외부의 물리적인 충격과 전기 누설을 방지할 수 있도록 소정의 두께와 넓이를 가진 절연성 원단(115)을 사용하여 다양한 문양과 형태로 카본페이스트(135)를 도포한 후 건조로에서 일정시간 열풍 건조시킨다.3 is a perspective view showing a planar heating element 100 having a multi-structure according to the present invention, various patterns using an insulating fabric 115 having a predetermined thickness and width to prevent physical shock and electrical leakage from the outside After applying the carbon paste 135 in the form and dried in a drying furnace hot air for a predetermined time.

카본부(135)는 카본페이스트(135)를 전면적으로 도포하거나 일정간격을 유지한 다양한 무늬를 형성하여 건조하는 방법과 사물의 형태를 형상화한 문양으로 인쇄하여 시각적인 운치를 살리면서 저항열에 의해 발열기능을 담당하도록 구성된다.The carbon part 135 is coated with the carbon paste 135 on the whole surface or forms various patterns maintaining a predetermined interval and is dried and printed by a pattern shaped into the shape of the object to generate visual heat and heat by resistance heat. It is configured to take charge of the function.

실버부(123)는 전극(112)에서 카본부(135)로 안정되게 전기 충격을 완화시켜 전류가 통전되도록 하는 작용을 하며, 도전체인 실버페이스트(123)를 카본부(135) 의 양단에 인쇄하여 일정시간 열풍 건조로에서 건조시킨다.The silver part 123 functions to reliably relieve an electric shock from the electrode 112 to the carbon part 135 so that an electric current flows, and the silver paste 123, which is a conductor, is printed on both ends of the carbon part 135. And dry in a hot air drying furnace for a certain time.

이렇게 인쇄 건조되어 카본부(135)와 실버부(123)가 형성된 절연성 원단(115)의 반대 면에 다시 상기와 똑같은 공정으로 카본부와 실버부를 형성시키며, 인쇄된 양면의 실버부(123) 상에 소정의 간격을 유지하여 전기 전도도가 높은 구리박판이나 알루미늄 또는 금속박판 재질의 전극(112)이 구성되는데, 이때 전극(112)은 소정의 넓이와 두께로 형성을 하되 카본 저항체의 체적저항과 면적저항 수치가 낮아짐에 따라 비례적으로 두꺼워져 전류량을 원활히 공급할 수 있도록 형성하며, 전류의 공급하는 도전체 역할을 하게 된다. 이와 같이 형성된 절연성 원단(115)면에 보다 넓은 라미네이팅지 상면(130)으로 합지한 후 다시 반대 면에 소정의 넓이를 가진 라미네이팅지 하면(132)으로 재합지 시키는데, 이때 라미네이팅지는 외부로부터 발생되는 물리적인 충격을 완화시켜 손상을 방지하고, 습기를 차단하여 전기누전을 없애 정상적인 발열기능이 이루어지는 역할을 한다. 다중구조의 면상발열체를 생산함에 있어 가장바람직한 방법은 원가절감을 최소화시키면서 작업의 용이하도록 절연성 원단의 양면에 카본부와 인쇄부를 두고 전극을 형성시켜 라미네이팅지를 열압착시켜 만든 구조가 효율적이다.In this way, the carbon portion 135 and the silver portion 123 are formed on the opposite side of the insulating fabric 115 on which the carbon portion 135 and the silver portion 123 are formed. The electrode 112 is formed of a copper foil, aluminum, or metal sheet material having high electrical conductivity by maintaining a predetermined gap therebetween, wherein the electrode 112 is formed in a predetermined width and thickness, but has a volume resistance and an area of the carbon resistor. As the resistance value is lowered, it becomes thicker proportionally, so that the current can be smoothly supplied and serves as a conductor for supplying current. The insulating fabric 115 formed as described above is laminated with a wider laminating paper upper surface 130 and then re-laminated into a laminating paper lower surface 132 having a predetermined width on the opposite surface, where the laminating paper is physically generated from the outside. It acts as a normal heating function by mitigating the impact of the phosphorus to prevent damage, and blocking moisture to eliminate electrical leakage. The most preferred method for producing a multi-layered planar heating element is a structure made by thermally compressing laminated paper by forming electrodes with carbon parts and printing parts on both sides of an insulating fabric to minimize cost reduction and to facilitate work.

도 5는 본 발명에 따른 다른 실시예를 보인 다중구조의 면상발열체 사시도를 나타낸 도면으로, 도 3에서 설명한 구조에 도 5와 같이 다중의 형태로 구성시키면 단시간 내에 빠른 온도 상승과 동일 소비전력 투입에 단층구조를 가진 면상발열체보다 온도 발열성능이 우수하다.5 is a view showing a perspective view of a multi-layered planar heating element showing another embodiment according to the present invention, if the structure described in FIG. It has better temperature heating performance than planar heating element with single layer structure.

먼저, 도 5에 도시된 도면을 참조하여 설명을 하면, 도 3에 설명했던 면상발 열체(100)의 라미네이팅지 상면(130)원단 표면에 저항열을 갖는 카본페이스트(135)를 도포하여 건조하고 전도성이 탁월한 실버페이스트(123)를 카본부의 양단에 일정시간과 온도로 건조로에서 건조한다. 전극(112)은 실버부(123) 상에 일정간격을 유지시켜 라미네이팅 원단 상면 2(140)와 라미네이팅 원단 하면 2(142)를 열압착 합지 시켜 다중의 구조로 형성하면 단층 구조의 소비전력을 갖는 면상발열체에 비해 다중의 구조를 가는 면상발열체(100)가 동일한 소비전력일 때 발열속도와 온도를 향상시킬 수 있다.First, referring to the drawings illustrated in FIG. 5, the carbon paste 135 having resistance heat is coated on the fabric surface of the laminated paper upper surface 130 of the planar heating element 100 described in FIG. 3 and dried. The silver paste 123 having excellent conductivity is dried in a drying furnace at a predetermined time and temperature at both ends of the carbon part. The electrode 112 maintains a predetermined distance on the silver part 123 to thermally compress and laminate the upper surface 2 (140) of the laminating fabric and the lower surface 2 (142) of the laminating fabric to form a multi-layered structure to have power consumption of a single layer structure. Compared to the planar heating element, when the planar heating element 100 having a plurality of structures has the same power consumption, the heating rate and temperature may be improved.

본 발명은 본 발명이 속하는 분야에서 통상적인 지식을 지닌 자라면 누구든지 다양한 변경실시가 가능한 범위까지 귀속할 수 있다할 것이다.The present invention will be attributed to those skilled in the art to the extent that various modifications can be made.

이상에서 설명한 바와 같이 본 발명은 카본부와 실버부와 전극부를 갖는 절연성 원단을 다중으로 형성시켜, 단층구조를 갖는 면상발열체보다 발열온도를 향상시켰으며, 단시간 내에 온도상승 변화를 시켜 쾌속난방을 이룰 수 있는 효과가 있다.As described above, the present invention forms a plurality of insulating fabrics having a carbon part, a silver part, and an electrode part to improve heat generation temperature than a planar heating element having a single layer structure, and achieves rapid heating by changing the temperature in a short time. It can be effective.

또한, 단층구조를 갖는 면상발열체와 다중구조의 면상발열체에 동일한 소비전력을 통전시키면, 다중구조의 면상발열체가 발열온도가 월등히 상승한 점을 볼 때 적은 소비전력을 갖는 다중구조의 면상발열체를 이용할 경우 단층구조의 면상발열체보다 경제적인 발열성능을 나타내는 효과가 있다.In addition, when the same power consumption is applied to the planar heating element having a single layer structure and the planar heating element having a multi-layer structure, when the planar heating element having a low power consumption is used in view of the fact that the heat generating temperature of the multi-layer planar heating element is significantly increased. There is an effect of showing economical heating performance than the planar heating element of a single layer structure.

Claims (3)

절연성원단에 소정의 두께를 가진 다양한 문양과 형태로 카본페이스트를 도포하여 건조하고, 도포된 카본부의 양단에 실버페이스트를 도포하여 건조 시킨 후 절연성 원단의 반대 면에 동일한 패턴으로 다시 소정의 두께를 가진 다양한 문양과 형태로 카본페이스트를 도포하여 건조시키고, 도포된 카본부의 양단에 실버페이스트를 도포하여 건조 시키며, 실버부 위로 일정간격을 유지되도록 전극을 형성시켜 라미네이팅지 상면과 라미네이팅지 하면을 절연성 원단의 양면에 열압착 시키는 것을 특징으로 하는 다중구조의 면상발열체.Apply carbon paste in various patterns and shapes with a predetermined thickness to the insulating fabric, and dry it by applying silver paste to both ends of the coated carbon part. Carbon paste is coated and dried in various patterns and shapes, and silver paste is applied to both ends of the coated carbon portion to dry it, and electrodes are formed to maintain a predetermined distance over the silver portion to insulate the upper surface of the laminated paper and the lower surface of the laminated paper. Planar heating element of a multi-structure, characterized in that the thermal pressing on both sides of the fabric. 청구항 1에 있어서;The method according to claim 1; 절연성원단을 합지한 라미네이팅지 표면에 절연성원단의 인쇄패턴과 전극을 동일하게 형성시켜 라미네이팅지로 다시 열압착 시키는데, 이와 같이 카본부와 실버부와 전극부가 구성된 면상발열체 층이 다중으로 형성된 것을 특징으로 하는 다중구조의 면상발열체.Forming the same pattern and electrode of the insulating fabric on the surface of the laminated paper laminated the insulating fabric, and thermo-compression again with the laminating paper, as described above, the planar heating element layer consisting of the carbon part, the silver part and the electrode part is formed in multiple layers. Multi-faceted planar heating element. 청구항 1에 있어서;The method according to claim 1; 절연성원단의 양면에 인쇄된 카본부와 실버부 및 전극부를 라미네이팅지의 상측 면과 하측 면을 열압착 합지 시키는 것을 특징으로 하는 면상발열체.A planar heating element characterized in that the carbon and silver parts and the electrode part printed on both sides of the insulating fabric are thermally press-bonded to the upper and lower surfaces of the laminating paper.
KR1020070008453A 2007-01-24 2007-01-24 Sheet type a heating element of structural multiple KR20070028489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070008453A KR20070028489A (en) 2007-01-24 2007-01-24 Sheet type a heating element of structural multiple

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070008453A KR20070028489A (en) 2007-01-24 2007-01-24 Sheet type a heating element of structural multiple

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
KR2020060009754U Division KR200420133Y1 (en) 2006-04-10 2006-04-10 Sheet type a heating element of structural multiple

Publications (1)

Publication Number Publication Date
KR20070028489A true KR20070028489A (en) 2007-03-12

Family

ID=38101127

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070008453A KR20070028489A (en) 2007-01-24 2007-01-24 Sheet type a heating element of structural multiple

Country Status (1)

Country Link
KR (1) KR20070028489A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009035175A1 (en) * 2007-09-14 2009-03-19 Yong Jin Lee Carbon heater
WO2014106963A1 (en) * 2013-01-07 2014-07-10 Kim Youn Joung Method for preparing flexible heater fabric
KR20230058981A (en) * 2021-10-25 2023-05-03 주식회사 쿠사 Floor electric heating plate without terminal spark generation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10106727A (en) * 1996-09-30 1998-04-24 Sharp Corp Sheet-like heater element
KR19980014136A (en) * 1996-08-08 1998-05-15 김경태 Sheet heater
KR20010008290A (en) * 2000-11-21 2001-02-05 김행웅 Multi-layer type heating seat
KR200372489Y1 (en) * 2004-10-28 2005-01-14 주식회사 디스테크 Plane heater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980014136A (en) * 1996-08-08 1998-05-15 김경태 Sheet heater
JPH10106727A (en) * 1996-09-30 1998-04-24 Sharp Corp Sheet-like heater element
KR20010008290A (en) * 2000-11-21 2001-02-05 김행웅 Multi-layer type heating seat
KR200372489Y1 (en) * 2004-10-28 2005-01-14 주식회사 디스테크 Plane heater

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009035175A1 (en) * 2007-09-14 2009-03-19 Yong Jin Lee Carbon heater
WO2014106963A1 (en) * 2013-01-07 2014-07-10 Kim Youn Joung Method for preparing flexible heater fabric
KR20230058981A (en) * 2021-10-25 2023-05-03 주식회사 쿠사 Floor electric heating plate without terminal spark generation

Similar Documents

Publication Publication Date Title
JP3860172B2 (en) Flexible heating device
KR200420133Y1 (en) Sheet type a heating element of structural multiple
US20060278631A1 (en) Laminate fabric heater and method of making
CA2736652A1 (en) Flexible electrothermal plate
CA2045529A1 (en) Flexible heating element
KR20070028489A (en) Sheet type a heating element of structural multiple
KR200445656Y1 (en) A sheet type heating element
KR20240041872A (en) Electrode assembly comprising a sheet of graphite for applying TTFIELD
JP3144384U (en) Electric heating device
KR200427331Y1 (en) Sheet type heating element
CN214960368U (en) Pressing machine
KR101428035B1 (en) Planar Heat Generator
KR101338024B1 (en) Face type heating element
KR200441519Y1 (en) sheet type heating element having improved adhesive strength
KR200420142Y1 (en) heat a element has overcoat
CN112867293A (en) Pressing machine
KR200444679Y1 (en) An earth wired face type heating element sheet
KR20220161782A (en) Low electromagnetic wave heating panel and Quick warming bed having the same
JP3048034U (en) Sheet heating element and heating device using sheet heating element
CN210725383U (en) Self-limiting temperature electrothermal film
KR200341343Y1 (en) sheet type heater
KR101468637B1 (en) Method of manufacture for flexible carbon heater and carbon heater
CN113543383B (en) Heating pad and manufacturing method thereof
KR100468651B1 (en) Film heater electric boiler
KR200372489Y1 (en) Plane heater

Legal Events

Date Code Title Description
A108 Dual application of patent
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application