KR20150012789A - Statment dew condensation Outdoor - Google Patents

Statment dew condensation Outdoor Download PDF

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Publication number
KR20150012789A
KR20150012789A KR1020130088794A KR20130088794A KR20150012789A KR 20150012789 A KR20150012789 A KR 20150012789A KR 1020130088794 A KR1020130088794 A KR 1020130088794A KR 20130088794 A KR20130088794 A KR 20130088794A KR 20150012789 A KR20150012789 A KR 20150012789A
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South Korea
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door
temperature
dew condensation
heating element
unit
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KR1020130088794A
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Korean (ko)
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KR101599729B1 (en
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노진복
노홍제
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(주)삼선씨에스에이
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/12—Measures preventing the formation of condensed water
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/04—Wing frames not characterised by the manner of movement
    • E06B3/263—Frames with special provision for insulation
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings

Abstract

The present invention is to obtain an anti-dew condensation functional door reducing the difference between the temperature of a door surface and the room temperature by installing a heating element in the internal side of a board facing the inside in order to prevent dew condensation generated by the different temperature between the inside and the outside, on the door coming into contact with outdoor equipment including a house door used in the apartment or the conventional dwellings, an emergency door, outdoor fan door, or the like. A soundproofing and fireproofing door consisting of a door body, a door frame, and a hinge comprises: a door body having heat insulation between an outer board and an inner board and having a heat blocking and sealing member on the combining surface of the outer board and the inner board in order to enable to block heat transmission; a dew condensation prevention heating means unit configured to form a temperature detection unit detecting the temperature difference of the indoors in the door body and to prevent the dew condensation due to the difference between the room temperature and the temperature of the surface of the inner board by directly raising the temperature of the surface of the inner board if there is temperature difference; and a control unit to supply a power source from an electricity supply unit to the dew condensation prevention heating means unit by detecting the temperature difference in the temperature detection unit.

Description

무결로 기능성 도어{Statment dew condensation Outdoor}Statement dew condensation Outdoor

본 발명은 무결로 기능성 도어에 관한 것으로서, 더욱 상세하게는 The present invention relates to a non-defective functional door, and more particularly,

아파트나 일반 주택에서 사용되는 세대 문, 대피실문 , 실외기실문 등 외기와 접촉하는 방화문에, 내/외부 온도차에 의해 발생하는 결로현상을 방지하기 위하여, 문(도어)의 실내에 면하는 판의 안쪽에 발열체를 설치하여, 실내온도와 문 표면의 온도 차이를 줄여주는 무결로 기능성 도어에 관한 것이다. In order to prevent a condensation phenomenon caused by an internal / external temperature difference in a fire door in contact with outside air such as a house door, an evacuation door, and an outdoor door door used in an apartment or a general house, To reduce the temperature difference between the room temperature and the door surface.

통상, 아파트의 세대별 출입문이나 빌딩의 현관문, 실외기실 문, 대피공간 방화문, 실내 발코니 출입문 등에는 철판을 절곡하여 성형되는 도어(D)와 문틀(F)이 설치되는데, 화재시 난연과 방화를 유지하는 기능성과 함께 실 내외의 인테리어와 조화되는 장식성을 구비하도록 설계된다. 이때, 각종 건축물의 출입문은 외ㆍ내부 간에 온도 차이에 의한 결로현상을 제대로 방지하지 못할 뿐 아니라, 방풍 및 단열 성능 등에 있어서도 일반적인 수준에 미치지 못하는 단점이 있었다. 이에 따라, 최근에는 건축기술의 발달과 생활수준의 향상으로 소비자는 보다 높은 성능과 기능성을 갖춘 도어를 요구하고 있으나 아직까지는 이러한 수준의 도어 개발이 매우 미흡한 실정이다.Generally, a door (D) and a door frame (F), which are formed by bending an iron plate, are installed in a door for each household, an entrance door of a building, an outdoor door, an escape space fire door and an indoor balcony door. And is designed so as to have a decorative property in harmony with the interior and exterior of the room. At this time, doors and doors of various buildings can not properly prevent condensation due to temperature difference between the exterior and the interior, but also have a disadvantage in that they do not reach a general level in windshield and insulation performance. Recently, due to the development of building technology and the improvement of living standards, consumers are demanding a door having higher performance and functionality, but until now, there has been very little development of this level of door.

또한, 종전까지의 결로 방지 도어는 외부 온도가 내부로 전도되는 것을 막기 위하여, 고효율 단열재를 사용하며, 철판을 소재로 하는 방화문의 경우, 철을 통한 온도전달을 막기 위해, 외부와 맞닿는 철판과 내부에 맞닿는 철판 사이에 열 저항이 높은 소재를 통해 접합함으로써 이러한 현상을 해결하려하였으나 내부외 외부의 온도차가 커짐에 따라 내부면에 결로가 발생되는 문제점이 있었다.In order to prevent the external temperature from being conducted to the inside of the dew condensation preventing door up to the past, a highly efficient heat insulating material is used. In the case of a fire door made of an iron plate, in order to prevent temperature transmission through the iron, To the steel plate through a material having high heat resistance. However, there is a problem that condensation occurs on the inner surface as the temperature difference between the inside and outside increases.

공개실용신안 20-2010-0011143(2010,11,16)Public utility model 20-2010-0011143 (2010,11,16)

본 발명이 해결하고자하는 과제는 외부온도와 내부온도차를 최소화할 수 있도록 방화문의 내부면에 발열체를 형성하여 내부면에 결로가 발생되는 방지하도록 형성한 무결로 기능성 도어을 제공하는 데 있다.SUMMARY OF THE INVENTION It is an object of the present invention to provide a seamless functional door in which a heating element is formed on the inner surface of a fire door so as to minimize external temperature and internal temperature difference to prevent condensation on the inner surface.

본 발명의 다른 목적은 문의 실내에 면하는 철판의 안쪽에 발열체를 설치하여 실외와 실내의 온도 차이가 발생할 경우, 문 표면의 온도를 직접적으로 유지하여 줌으로써, 실내온도와 문 표면의 온도 차이를 결로가 발생하지 않는 온도까지 줄여줌으로써 결로현상을 막는 무결로 기능성 도어를 제공하는 데 있다.It is a further object of the present invention to provide a heating element inside a steel plate facing the inside of a door to directly maintain the temperature of the door surface when a temperature difference between the outside and the inside is generated, To prevent the condensation phenomenon by reducing the temperature of the door by reducing the temperature of the door.

본 발명의 다른 목적은 발열체는 전기를 사용하는 열선이나 난방 필름을 사용하여 도어 내부에 설치하며 결로 방지에 사용되는 전력의 사용을 최소화한 무결로 기능성 도어를 제공하는 데 있다.Another object of the present invention is to provide a functional door which is installed inside a door using a heat ray or a heating film using electricity and minimizes the use of electric power used for preventing condensation.

본 발명의 또 다른 목적은 방화문에 사용되는 발열체의 전기에너지를 절전할 수 있도록 형성한 무결로 기능성 도어를 제공하는 데 있다.It is another object of the present invention to provide a seamless functional door formed to save electric energy of a heating element used in a fire door.

본 발명의 과제의 해결 수단은 도어본체와 문틀과 힌지로 이루어진 방음 방화문에 있어서, 외부판재와 내부판재의 사이에 단열재를 형성하고, 상시 외부판재와 내부판재의 결합면에는 열전달을 차단할 수 있도록 열차단 및 밀폐부재를 형성한 도어본체; 상기 도어본체내에 실내의 온도 차이를 감지하는 온도감지부를 형성하고, 온도 차이가 발생시에 내부판재면의 온도를 직접적으로 올려줌으로써, 실내온도와 내부판재의 표면의 온도 차이로 결로가 발생하지 않도록 형성한 결로방지 발열수단부; 상기 온도감지부에서 감지하여 온도차이가 발생시 결로방지 발열수단부에 전기공급부에서 전원을 공급되도록 제어부를 형성하여 달성하였다.According to an aspect of the present invention, there is provided a soundproof fire door comprising a door body, a door frame and a hinge, wherein a heat insulating material is formed between the outer plate and the inner plate, A door main body having an end and a sealing member; A temperature sensing part for sensing the temperature difference of the inside of the door body is formed and the temperature of the inner plate surface is directly raised when a temperature difference occurs so that condensation is not generated due to the temperature difference between the room temperature and the surface of the inner plate A dew condensation preventing heat generating unit; And a controller is formed to supply power to the dew condensation preventive heating unit when the temperature difference sensed by the temperature sensor is supplied from the electric supply unit.

본 발명의 무결로 기능성 도어는 겨울철 낮은 외부 온도와, 내부 난방으로 높은 온도로 인해 발생하는 온도차에 의해, 세대 문, 대피실문, 실외기실문 등 외기와 접촉하는 문의 내부 표면 온도가 이슬점 온도 이하로 떨어짐으로서, 내부에 물방울이 맺히는 결로현상을 방지하기 위한 효과가 있다.The functional door of the present invention has a lower inner temperature of the door in contact with outside air such as a household door, an evacuation door, and an outdoor door due to a low outside temperature in winter and a temperature difference caused by a high temperature due to internal heating to fall below a dew point temperature There is an effect of preventing condensation phenomenon in which water droplets are formed inside.

또한, 방화문에 발열체를 내장하여 실내온도와 문과의 온도차를 최소화하여 결로를 막을 수 있는 뛰어난 효과가 있어 건축산업상 매우 유용한 발명인 것이다.In addition, since a heating element is embedded in a fire door, the temperature difference between the room temperature and the door can be minimized to prevent condensation, which is a very useful invention in the construction industry.

도 1은 본 발명의 무결로 기능성 도어를 도시한 정면도.
도 2는 본 발명의 발열체를 형성한 사용상태도.
도 3은 본 발명의 발열체의 원단에 불연소 재질을 도포하여 형성한 상태도.
도 4는 본 발명의 무결로 기능성 도어에 압전소자발전기가 적용된 발판매트를 도시한 상태도.BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front view of a seamlessly functional door of the present invention.
Fig. 2 is a state of use in which a heating element of the present invention is formed. Fig.
FIG. 3 is a state in which a non-combustible material is applied to a raw end of a heating element of the present invention. FIG.
4 is a state view showing a footing mat to which a piezoelectric element generator is applied to a seamlessly functional door of the present invention.

이하, 본 발명의 바람직한 실시예의 무결로 기능성 도어를 도면을 참조하여 상세히 설명한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a seamless functional door of a preferred embodiment of the present invention will be described in detail with reference to the drawings.

명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정 해석되지 아니하며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.It is to be understood that the words or words used in the specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can reasonably define the concept of a term in order to best explain its invention in the best possible way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention.

따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

도 1 내지 도 3에 도시한 본 발명의 무결로 기능성 도어는The seamlessly functional door of the present invention shown in Figures 1 to 3

도어본체(110)와 문틀(110)과 힌지(240)로 이루어진 방음 방화문에 있어서,A soundproof fire door comprising a door body (110), a door frame (110) and a hinge (240)

외부판재(200)와 내부판재(210)의 사이에 단열재(190)를 형성하고, 상기 외부판재와 내부판재의 결합면에는 열전달을 차단할 수 있도록 열차단 및 밀폐부재(250)를 형성한 도어본체(300)와, 상기 도어본체(300)의 실내외의 온도 차이를 감지하는 온도감지부(170)를 형성하고, 온도 차이가 발생시에 내부판재면의 온도를 직접적으로 올려줌으로써, 실내온도와 내부판재의 표면의 온도 차이로 결로가 발생하지 않도록 발열체가 형성된 결로방지 발열수단부(220)와, 상기 결로방지 발열수단부(220)의 발열체에 전기를 공급하는 전기공급부(140)로 이루어진 특징이 있다.
A heat insulating material 190 is formed between the outer plate member 200 and the inner plate member 210 and a heat shielding member 250 is formed on the mating surface of the outer plate member and the inner plate member, And a temperature sensing unit 170 for sensing the temperature difference between the inside and outside of the door body 300. The temperature of the inside plate surface is directly increased when a temperature difference occurs, A dew condensation preventing heat generating unit 220 having a heating element for preventing condensation from occurring due to a temperature difference between the surface of the condensation preventing heat generator 220 and an electricity supplying unit 140 for supplying electricity to a heating element of the condensation preventing heat generating unit 220 .

일반적으로 방음 방화문는 도어본체(300), 프레임(110), 도어본체에 형성된 열차단 및 밀폐부재(250)로 크게 구성된다.Generally, the soundproof fire door comprises a door main body 300, a frame 110, a heat shield formed on the door main body, and a sealing member 250.

상기 열차단 및 밀폐부재(250)는 서로 단절된 외부판재(200)와 내부판재(210)를 연결하는 매개체 역할을 하며, 상기 열차단 및 밀폐부재의 고정력을 보강하기 위해 별도의 보강 브라켓을 판재 사이에 배치하는 것도 좋은데, 이때 보강 브라켓의 재질은 열전도율이 낮은 불연재질로 하여 화재시 내외부의 화기가 인접공간으로 전달되는 것을 방지하는 재질로 사용함이 바람직하다.The heat shield and the sealing member 250 serve as a medium for connecting the outer plate member 200 and the inner plate member 210 which are separated from each other. To reinforce the fixing force of the heat shield plate and the sealing member, a separate reinforcing bracket is inserted between the plate members It is preferable that the reinforcement bracket is made of a non-combustible material having a low thermal conductivity and is used as a material for preventing internal and external firearms from being transferred to an adjacent space.

본 발명에 도시한 바와 같이 겨울철 낮은 외부 온도와, 내부 난방으로 높은 온도로 인해 발생하는 온도차에 의해 내부에 물방울이 맺히는 결로현상을 방지하기 위해 도어본체(300) 내에 결로방지 발열수단부(220)를 형성하였다.As shown in the present invention, a dew condensation preventing heat generating unit 220 is provided in the door body 300 to prevent condensation that forms water droplets inside due to a low external temperature in winter and a high temperature due to internal heating. .

상기 도어본체는 문틀과 연결하는 힌지(240)와, 도어락(120)과, 손잡이(130)가 형성되며, 도어본체내에 작동램프(150)와 ON/OFF스위치(160)와 온도감지부(170)가 형성된 제어부(180)와, 결로방지 발열수단부(220)를 형성하였다.The door main body includes a hinge 240 connected to the door frame, a door lock 120 and a handle 130. The operation lamp 150, the ON / OFF switch 160, the temperature sensor 170 And a dew condensation preventing heat generating unit 220 are formed.

상기 제어부(180)는 전원공급부(140)에서 공급되는 전원을 결로방지 발열수단부(220)에 공급하여 온도차이를 최소화하여 결로가 생기지 않도록 형성하였다.The controller 180 supplies the power supplied from the power supply unit 140 to the dew condensation preventing unit 220 so that the temperature difference is minimized to prevent condensation.

상기 결로방지 발열수단부(220)는 도어본체(300)에 과도한 열의 발생으로 화재가 발생하거나 과열을 방지하도록 함이 바람직하다.It is preferable that the dew condensation prevention heat generating unit 220 prevents a fire or an overheating due to excessive heat generated in the door body 300.

상기 결로방지 발열수단부는 열선을 도어본체내 또는 내부판재면에 배열하여 형성하거나, 히터파이프를 도어본체에 삽입하여 형성함이 바람직하다. 상기와 같이 발열체를 직접장착하거나 별도의 칸막이, 절연체판 등을 포함한다.Preferably, the dew condensation prevention heat generating unit is formed by arranging a heat ray in a door body or an inner plate surface, or by inserting a heater pipe into a door body. As described above, the heating element is directly mounted or includes a separate partition, an insulator plate, and the like.

본 발명의 다른 실시예는 결로방지 발열수단부의 발열체가 불연소재가 코팅된 발열체 원단인 것을 특징으로 한다.Another embodiment of the present invention is characterized in that the heating element of the dew condensation preventive heating means is a heating element body coated with a non-burnable material.

상기 불연소재가 코팅된 발열체 원단은 불연소재로 코팅하여 화재시에 불에 견딜 수 있는 재질로 사용함이 바람직하다.It is preferable that the non-burnable material coated with a non-burnable material is used as a material that can withstand fire in the event of a fire.

사용자가 필요시 ON/OFF스위치(160)로 제어가 가능하고, 자동으로 온도를 설정하여 제어하거나, 타이머를 설치하여 필요한 시간과, 온도차이를 설정하여 그 온도차이가 발생시에 작동이 이루어지도록 형성한다. 보통 10도 이상이 작동하도록 형성하였다.If necessary, the user can control the temperature by the ON / OFF switch 160 and automatically set the temperature or set the timer to set the required time and temperature difference so that the operation is performed when the temperature difference occurs do. It is usually configured to operate above 10 degrees.

따라서, 본 발명은 상술한 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 권리범위 내에 있게 된다.It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. Of course, such changes are within the scope of the claims.

100 : 문틀 110 : 도어본체
120 : 장금부 130 : 손잡이
140 : 전원공급부 150 : 작동램프
160 : ON/OFF스위치 170 : 온도감지부
180 : 제어부 190 : 단열체
200 : 외부판재 210 : 내부판재
220 : 결로방지 발열수단부 230 : 전원공급부
240 : 힌지 250 :열차단 및 밀폐부재100: door frame 110: door main body
120: Janggumbu 130: Handle
140: Power supply unit 150: Operation lamp
160: ON / OFF switch 170: Temperature sensing unit
180: control unit 190:
200: outer plate member 210: inner plate member
220: condensation-preventing heat generating unit 230: power supply unit
240: hinge 250: heat shield and sealing member

Claims (6)

도어본체와 문틀과 힌지로 이루어진 방음 방화문에 있어서,
외부판재와 내부판재의 사이에 단열재를 형성하고, 상시 외부판재와 내부판재의 결합면에는 열전달을 차단할 수 있도록 열차단 및 밀폐부재를 형성한 도어본체;
상기 도어본체내에 실내의 온도 차이를 감지하는 온도감지부를 형성하고, 온도 차이가 발생시에 내부판재면의 온도를 직접적으로 올려줌으로써, 실내온도와 내부판재의 표면의 온도 차이로 결로가 발생하지 않도록 형성한 결로방지 발열수단부;
상기 온도감지부에서 감지하여 온도차이가 발생시 결로방지 발열수단부에 전기공급부에서 전원을 공급되도록 제어부를 형성한 것을 특징으로 하는 무결로 기능성 도어.A soundproof fire door comprising a door body, a door frame and a hinge,
A door main body in which a heat insulating material is formed between the outer plate material and the inner plate material and a heat shield and a sealing member are formed on the mating surface of the outer plate material and the inner plate material so as to block heat transfer;
A temperature sensing part for sensing the temperature difference of the inside of the door body is formed and the temperature of the inner plate surface is directly raised when a temperature difference occurs so that condensation is not generated due to the temperature difference between the room temperature and the surface of the inner plate A dew condensation preventing heat generating unit;
Wherein the control unit is configured to supply power to the dew condensation preventing unit when the temperature sensed by the temperature sensing unit is changed. 제 1항에 있어서, 상기 결로방지 발열수단부는
내부판재면에 불연소재가 코팅된 열선을 배열한 발열체를 형성한 것을 특징으로 하는 무결로 기능성 도어.The refrigeration system according to claim 1, wherein the dew condensation prevention heat generating unit
Wherein a heating element is formed by arranging hot wires coated with a non-burnable material on the inner sheet material surface. 제 1항에 있어서, 상기 결로방지 발열수단부는
발열체가 불연소재가 코팅된 발열체 원단인 것을 특징으로 하는 무결로 기능성 도어.The refrigeration system according to claim 1, wherein the dew condensation prevention heat generating unit
Wherein the heating element is a heating element body coated with a non-burning material. 제 1항에 있어서, 상기 결로방지 발열수단부는
내부판재와 외부판재 사이에 형성한 발열체가 히터봉인 것을 특징으로 하는 무결로 기능성 도어.The refrigeration system according to claim 1, wherein the dew condensation prevention heat generating unit
Wherein the heating element formed between the inner plate member and the outer plate member is a heater seal. 제 1항에 있어서, 상기 제어부는
ON/OFF스위치와, 도어본체에 형성된 외부판재와 내부판재의 온도감지부와, 작동램프가 형성된 도어본체의 내부면에 온도를 감지하여 발연체에 전원을 공급하도록 형성된 것을 특징으로 하는 무결로 기능성 도어.The apparatus of claim 1, wherein the control unit
A temperature sensing part of an outer plate member formed on the door body, a temperature sensing part of the inner plate member, and an inner surface of the door body on which the operation lamp is formed, door. 제 1항에 있어서, 상기 온도감지부에서 감지하여 온도차이가 10도 이상시에
발열체에 전원공급하도록 형성한 것을 특징으로 하는 무결로 기능성 도어.
The method as claimed in claim 1, wherein, when the temperature difference detected by the temperature sensing unit exceeds 10 degrees
And a power supply for supplying power to the heating element.
KR1020130088794A 2013-07-26 2013-07-26 Statment dew condensation Outdoor KR101599729B1 (en)

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KR102221656B1 (en) * 2020-04-10 2021-03-02 주식회사 대광도어 condensation prevention systemfor fire doors

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KR20190100884A (en) 2018-02-21 2019-08-29 홍윤아 Door having a function of condensation prevetion
KR102003836B1 (en) * 2019-02-14 2019-07-25 (주)대성명품도어 Separable door system with condensation prevention function
KR102332695B1 (en) * 2020-12-04 2021-12-01 박문규 Preventing dew condensation for fire door

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KR20090004305U (en) * 2007-11-02 2009-05-08 주식회사 엔휀스타 Film Heater and Louver with the same
KR20100011143U (en) 2009-05-06 2010-11-16 (주)삼선씨에스에이 Fire door having heat insulator

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KR200209317Y1 (en) * 2000-03-30 2001-01-15 이민구 Anti-frost Doorframe
KR20090004305U (en) * 2007-11-02 2009-05-08 주식회사 엔휀스타 Film Heater and Louver with the same
KR20100011143U (en) 2009-05-06 2010-11-16 (주)삼선씨에스에이 Fire door having heat insulator

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Publication number Priority date Publication date Assignee Title
KR102221656B1 (en) * 2020-04-10 2021-03-02 주식회사 대광도어 condensation prevention systemfor fire doors

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