KR20110026083A - T type sealing cap of layed type electric heat appratus - Google Patents

T type sealing cap of layed type electric heat appratus Download PDF

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KR20110026083A
KR20110026083A KR1020090083825A KR20090083825A KR20110026083A KR 20110026083 A KR20110026083 A KR 20110026083A KR 1020090083825 A KR1020090083825 A KR 1020090083825A KR 20090083825 A KR20090083825 A KR 20090083825A KR 20110026083 A KR20110026083 A KR 20110026083A
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South Korea
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sealing cap
shaped sealing
heat transfer
heating rod
heating
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KR1020090083825A
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Korean (ko)
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KR101124979B1 (en
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임한복
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주식회사 삼명테크
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D13/00—Electric heating systems
    • F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
    • E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
    • E01C11/265—Embedded electrical heating elements ; Mounting thereof
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/10—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice by application of heat for melting snow or ice, whether cleared or not, combined or not with clearing or removing mud or water, e.g. burners for melting in situ, heated clearing instruments; Cleaning snow by blowing or suction only
    • E01H5/102—Self-contained devices for melting dislodged snow or ice, e.g. built-in melting chambers, movable melting tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/08—Electric heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2250/00—Electrical heat generating means

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Road Paving Structures (AREA)
  • Resistance Heating (AREA)

Abstract

PURPOSE: A T-shaped sealing cap of an embedded heat transfer apparatus is provided to enhance sealing performance since a molded part is formed by repetitive valley and mountain. CONSTITUTION: A T-shaped sealing cap of an embedded heat transfer apparatus comprises a molded part(30). The molded part is injection-molded in a T shape to cover a connected part. The molded part is formed by repetitive valley and mountain. The molded part is formed from resin of a Br-Epoxy flame-retardant material. The top and the bottom of the molded part are flat.

Description

매설형 전열장치의 티자형 밀봉캡{T Type sealing cap of layed type electric heat appratus}T type sealing cap of layed type electric heat appratus}

본 발명은 매설형 전열장치의 티자형 밀봉캡에 관한 것으로, 특히 매설형 전열장치의 전원선과 발열봉의 결선부위를 사출성형하고, 그 사출성형되는 성형부가 골부와 산부가 반복적으로 형성되도록 하여 사출성형 후 골부와 산부의 냉각 온도차에 의해 수축효과를 증진하여 밀봉성을 향상시키는 매설형 전열장치의 티자형 밀봉캡에 관한 것이다.The present invention relates to a T-shaped sealing cap of a buried heat transfer device, in particular injection molding the connection portion of the power line and the heating rod of the buried heat transfer device, and the injection molded molding part to be repeatedly formed by the injection part and the injection molding It relates to a T-shaped sealing cap of the buried heat transfer device to improve the sealing property by promoting the shrinkage effect by the cooling temperature difference between the valley and the peak of the after.

일반적으로 매설형 전열장치는 학교, 주택, 공장, 노면이나 공항 활주로면 등에 설치되는 바닥을 난방하는 역할을 하게 되며, 온수관을 이용한 난방방식과 전열관을 이용한 난방방식으로 구분할 수 있다. 상기 매설형 전열장치를 노면이나 공항 활주로면에 설치하는 것은 겨울에 눈이 내릴때 노면에 눈이 쌓이지 않도록 하는 동시에 노면이 빗물이나 눈이 녹아내린 물이 얼지 않도록 하여 빙판이 형성되지 않도록 하여 사고를 예방하기 위한 것이다. In general, the buried heating device serves to heat the floor installed in the school, home, factory, road surface or airport runway surface, it can be divided into heating method using a hot water pipe and heating method using a heat pipe. Installing the buried heat transfer device on the road surface or on the runway surface of the airport prevents snow from accumulating on the road surface during the winter snow and prevents the formation of ice sheets by freezing rain or melted water on the road surface. It is to prevent.

상기 난방방식 중에서 본 발명은 전열관을 이용한 난방방식에 활용되는 매설형 전열장치를 적용하며, 상기 매설형 전열장치는 누전 등의 문제점을 배제하기 위하여 T자형 밀봉캡 및 전선사이와 T자형 밀봉캡 및 발열봉 사이의 결선부위의 밀봉성이 매우 중요하다.Among the heating methods, the present invention applies a buried heat transfer device utilized for a heating method using a heat transfer tube, and the buried heat transfer device includes a T-shaped sealing cap and a T-shaped sealing cap and a wire between the wires to eliminate problems such as a short circuit. The sealing property of the connection area between heating rods is very important.

도 1은 종래의 매설형 전열장치의 전체 구조를 나타낸 도면이다.1 is a view showing the overall structure of a conventional embedded heating device.

전원을 입력하기 위한 플러그((P)와, 상기 플러그(P)에서 분기된 두 가닥의 전원선(1)과, 상기 두 가닥의 전원선(1)에 병렬로 연결되고 일정간격을 두고 이격되어 있는 복수 개의 발열봉(2)으로 구성된다.A plug (P) for inputting power, two power lines (1) branched from the plug (P), and two power lines (1) connected in parallel and spaced apart at regular intervals It consists of a plurality of heating rods (2).

상기 전선(1)과 발열봉(2)의 연결부위는 T자형 밀봉캡(4)에 의해 밀폐된다. 상기 두 가닥의 전선(1)은 전류가 흐르도록 도체(1a)와 상기 도체(1a)를 감싸는 외피(1b)로 이루어지고, 상기 발열봉(2)은 발열체(2a)와 상기 발열체(2a)를 감싸는 외피(2b)로 이루어진다.The connecting portion of the wire 1 and the heating rod 2 is sealed by the T-shaped sealing cap (4). The two strands of wires 1 are made of a conductor 1a and an outer shell 1b surrounding the conductor 1a so that a current flows, and the heat generating rod 2 is a heat generating element 2a and the heat generating element 2a. It consists of a shell (2b) surrounding the.

전선의 외피(1b)를 벗겨 노출된 도체(1a)와 발열봉(2)의 발열체(2b)를 전도성 연결구(3)가 전기적으로 연결되도록 한다. The outer shell 1b of the wire is peeled off so that the conductive connector 3 is electrically connected to the exposed conductor 1a and the heating element 2b of the heating rod 2.

그리고 상기 T자형 밀봉캡(4)은 상,하로 분리되는 형태로 형성되어 전선과(1)과 발열봉(2)의 연결부위에 상,하로 결합한 후 초음파 또는 고주파를 이용하여 용융접합시키는 방식으로 전선과(1)과 발열봉(2)의 연결부위를 밀봉시킨다. And the T-shaped sealing cap (4) is formed in a form that is separated up and down, and coupled to the connecting portion of the wire and the heating rod (1) and the heating rod (2) up and down in a manner of melt bonding using ultrasonic or high frequency Seal the connection between the wire (1) and the heating rod (2).

상기와 같은 종래의 매설형 전열장치는 상기 전선(1)과 발열봉(2)의 연결부위를 밀봉시키기 위해 T자형 밀봉캡(4)을 전선(1)과 발열봉(2)의 연결부위에 위치시킨 후 초음파 또는 고주파를 이용하여 용융접합시키는 방식이 사용되어 T자형 밀 봉캡(4) 및 전선(1)과 T자형 밀봉캡(4) 및 발열봉(2) 사이를 완전히 밀봉시키지 못하였고, 완전밀봉되더라도 시간이 경과하면서 틈새가 생기기 때문에 수밀성이 보장되지 않아 누전이 발생되고, 또한 전선(1)과 발열봉(2)이 부식되는 문제가 있었다.In the conventional buried heat transfer device as described above, the T-shaped sealing cap (4) is connected to the connection portion of the wire (1) and the heating rod (2) to seal the connection portion of the wire (1) and the heating rod (2). After locating, melt bonding using ultrasonic waves or high frequency was used to completely seal between the T-shaped sealing cap 4 and the electric wire 1 and the T-shaped sealing cap 4 and the heating rod 2, Even if it is completely sealed, since a gap occurs over time, watertightness is not guaranteed and a short circuit occurs, and there is a problem in that the wire 1 and the heating rod 2 are corroded.

이러한 문제를 해결하기 위해 T자형 밀봉캡(4) 및 전선(1)과 T자형 밀봉캡(4) 및 발열봉(2) 사이에 내부에 별도의 오링 또는 패킹과 같은 밀봉부재를 사용함과 아울러 밀봉부재로 상기 상, 하로 분리되는 T자형 밀봉캡(4)의 내부를 충진하는 구조로 이루어지도록 한다. 그런데 상, 하로 분리되는 T자형 밀봉캡(4)을 사용하여 수밀성을 보장하기 위해 전선(1)과 발열봉(2)에 오링이나 패킹을 끼워넣은 후 상, 하로 분리되는 T자형 밀봉캡(4)을 결합하여 초음파나 고주파로 용융접착시키게 되므로, 오링이나 패킹으로 이루어진 밀봉부재가 별도로 필요하고, T자형 밀봉캡(4) 내부를 충진하는 구조로 이루어져 제조공정이 복잡하여 제조비용이 상승하고 생산성이 떨어지는 문제점이 있었다.In order to solve this problem, a sealing member such as a separate O-ring or packing is used between the T-shaped sealing cap 4 and the electric wire 1 and the T-shaped sealing cap 4 and the heating rod 2, The member is to be made of a structure for filling the inside of the T-shaped sealing cap (4) separated by the upper and lower. However, the T-shaped sealing cap (4) is separated into the upper and lower after the O-ring or packing is inserted into the wire (1) and the heating rod (2) to ensure the watertightness by using the T-shaped sealing cap (4) separated up and down (4). ) Is combined with ultrasonic wave or high frequency to melt-bond, so a sealing member consisting of O-rings or packing is required separately, and the T-shaped sealing cap 4 is filled with a structure to make the manufacturing process complicated, thus increasing the manufacturing cost and increasing productivity. There was a falling issue.

또한 종래의 매설형 전열장치의 T자형 밀봉캡(4)은 일반 플라스틱 재질로 형성되어 노면 등에 설치 후 높은 하중이 가해질 경우 변형이 되거나 파손되어 수밀성이 파괴되어 매설형 전열장치에 누전이 발생되고, 또한 전선(1)과 발열봉(2)이 부식되는 문제가 있었다. In addition, the T-shaped sealing cap (4) of the conventional buried heat transfer device is formed of a general plastic material is deformed or damaged when a high load is applied after installation on the road surface, etc., watertightness is destroyed, and a short circuit occurs in the buried heat transfer device, In addition, there was a problem that the wire (1) and the heating rod (2) is corroded.

본 발명의 목적은 전선과 발열봉에 오링이나 패킹가 같은 밀봉부재를 사용하 지 않고 사출성형에 의해 T자형 밀봉캡 및 전선과 T자형 밀봉캡 및 발열봉 사이를 밀봉시킬 수 있어 공수를 절감하여 제조비용을 줄이고 생산성을 향상시킬 수 있는 T자형 밀봉캡을 제공함에 있다.An object of the present invention is to manufacture the T-shaped sealing cap and the wire and the T-shaped sealing cap and the heating rod by injection molding without using a sealing member such as O-ring or packing in the wire and heating rod to reduce the labor To provide a T-shaped sealing cap that can reduce cost and improve productivity.

본 발명의 다른 목적은 성형부를 골부와 산부가 반복적으로 형성되도록 하여 성형 시 골부와 산부의 냉각온도가 다르게 되어 수축성이 달라져 밀봉성을 향상시킬 수 있는 T자형 밀봉캡을 제공함에 있다.Another object of the present invention is to provide a T-shaped sealing cap that can be formed by the bone portion and the acid portion is formed repeatedly to form a different cooling temperature of the bone portion and the acid portion during molding to improve the sealing property by varying the shrinkage.

본 발명의 다른 목적은 성형부의 강도를 향상시켜 혹한기에 노면 등에 높은 하중이 가해질 경우 변형이나 파손을 방지하여 수밀성의 파괴를 방지하고 누전발생을 방지할 수 있는 T자형 밀봉캡을 제공함에 있다.Another object of the present invention is to provide a T-shaped sealing cap that can improve the strength of the molded part to prevent deformation or breakage when cold load is applied to a cold weather, preventing breakage of watertightness and preventing short circuit.

상기 목적을 달성하기 위한 본 발명의 매설형 전열장치의 발열봉과 전원선을 전기적으로 결선한 상태에서 결선부위를 밀봉시키는 T자형 밀봉캡은,T-shaped sealing cap for sealing the connection portion in the state of electrically connecting the heating rod and the power line of the buried type heat transfer device of the present invention for achieving the above object,

T자형태로 사출성형을 하여 상기 결선부위를 커버링하는 성형부가 산부(D1)와 골부(D2)가 반복적으로 형성되도록 하고, 상기 성형부가 Br-Epoxy 난연제 재질의 수지로 이루어지며, 상기 성형부의 상면 및 하면이 평면으로 이루어지도록 형성함을 특징으로 한다.Injection molding in the form of a T-shape to cover the connection portion is formed so that the ridge (D1) and the valley (D2) is formed repeatedly, the molding portion is made of a resin of Br-Epoxy flame retardant material, the upper surface of the molding And it is characterized in that the lower surface is formed to be flat.

상기 성형부의 수평부위와 수직부위가 연결되는 부위에 리브를 형성하여 상기 성형부의 강도를 보강함을 특징으로 한다.A rib is formed at a portion where the horizontal portion and the vertical portion of the molding portion are connected to reinforce the strength of the molding portion.

본 발명은, 전원선과 발열봉의 결선부위를 사출성형에 의해 밀봉하여 밀봉성을 향상시켜 전원선과 발열봉의 결선부위의 부식을 방지하고 누전을 방지할 수 있는 이점이 있다.The present invention has the advantage of sealing the connection part of the power supply line and the heating rod by injection molding to improve the sealing property to prevent corrosion of the connection part of the power supply line and the heating rod and to prevent a short circuit.

또한 본 발명은 전선과 발열봉에 오링이나 패킹과 같은 밀봉부재를 사용하지 않고 사출성형에 의해 T자형 밀봉캡 및 전선과 T자형 밀봉캡 및 발열봉 사이를 밀봉시킬 수 있어 공수를 줄여 제조비용을 절감하고, 생산성을 향상시킬 수 있는 이점이 있다.In addition, the present invention can seal between the T-shaped sealing cap and the wire and the T-shaped sealing cap and the heating rod by injection molding without using a sealing member such as O-ring or packing in the wire and the heating rod to reduce manufacturing costs There is an advantage that can reduce, and improve productivity.

또한 사출 성형부위의 상,하면을 평면으로 형성하여 박닥면에 매설형 전열장치를 매설할 때 시공을 용이하게 할 수 있는 이점이 있다.In addition, the upper and lower surfaces of the injection-molded portion is formed in a plane, there is an advantage that the construction can be facilitated when embedding the embedded heating device on the thin surface.

본 발명은 매설형 전열장치는 성형부의 수평부위는 전원선이 내재되고, 수직부위는 발열봉이 내재되도록 T자형으로 이루어지며, 상기 수평부위와 수직부위가 연결되는 부위에 리브가 형성되어 성형부의 강도를 향상시켜 혹한기에 노면 등에 높은 하중이 가해질 경우 변형이나 파손을 방지하여 수밀성의 파괴를 방지하고 누전발생을 방지할 수 있다.In the present invention, the buried heat transfer device is formed in the horizontal portion of the molded portion is a T-shaped so that the power line is embedded, the vertical portion is embedded in the heating rod, the rib is formed in the portion where the horizontal portion and the vertical portion is connected to increase the strength of the molded portion When the high load is applied to the road surface in the cold weather, it is possible to prevent deformation or breakage to prevent watertight destruction and to prevent short circuit.

이하 본 발명의 바람직한 실시예가 도시된 첨부 도면을 참조하여 보다 상세하게 설명된다. 그러나 본 발명은 다수의 상이한 형태로 구현될 수 있고, 기술된 실시 예에 제한되지 않음을 이해하여야 한다. 하기에 설명되는 본 발명의 실시 예 는 당업자에게 본 발명의 사상을 설명하기 위한 것에 불과하다는 것에 유의하여야 하며, 본 발명의 요지를 불필요하게 흐릴 수 있는 당 업계의 공지 기능 및 구성에 대한 상세한 설명이 생략됨에 유의하여야 한다. DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings in which: FIG. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be noted that the embodiments of the present invention described below are merely for explaining the spirit of the present invention to those skilled in the art, and detailed descriptions of well-known functions and configurations in the art may unnecessarily obscure the gist of the present invention. Note that it is omitted.

도 2는 본 발명에 따른 매설형 전열장치의 전체 구조를 나타낸 평면도이다.Figure 2 is a plan view showing the overall structure of the embedded heating device according to the present invention.

도 3은 도 2의 성형부(30)의 요부를 나타낸 사시도이고,3 is a perspective view illustrating main parts of the molding part 30 of FIG. 2;

도 4는 도 2의 성형부(30)의 요부를 나타낸 평면도이며,4 is a plan view illustrating main parts of the molding part 30 of FIG. 2;

도 5는 도 2의 성형부(30)의 요부를 평단면도이고,5 is a plan sectional view of main parts of the molding part 30 of FIG.

수평방향으로 일정거리 이격되어 배치되는 한 쌍의 전원선(20)과,A pair of power lines 20 arranged to be spaced apart a predetermined distance in a horizontal direction,

상기 한 쌍의 전원선(20) 사이에 수직방향으로 배치되고 관체(11)로 이루어져 내부에 열선(12)이 길이방향으로 배치되고, 상기 열선(12)의 양단부가 각각 상기 전원선(20)에 연결되는 연결단자(13)가 설치되며, 상기 관체(11)의 내부에 전열재(14)가 충진되어지는 발열봉(10)과,The heating wire 12 is disposed in the vertical direction between the pair of power wires 20 and consists of a tubular body 11, and a heating wire 12 is disposed in the longitudinal direction, and both ends of the heating wire 12 are respectively the power wire 20. A connection terminal 13 connected to the heat generating rod 10 in which the heat transfer material 14 is filled in the inside of the tubular body 11;

상기 발열봉(10)과 전원선(20)을 전기적으로 결선한 상태에서 결선부위를 T자형태로 사출성형에 의해 형성시켜 상기 결선부위를 밀봉시키는 성형부(30)로 이루어져 있다.In the state in which the heating rod 10 and the power line 20 are electrically connected, the connection part is formed by injection molding in a T-shape to seal the connection part.

상술한 도 2 내지 도 5를 참조하여 본 발명의 바람직한 일 실시 예를 상세히 설명한다.2 to 5 will be described in detail a preferred embodiment of the present invention.

한 쌍의 전원선(20)은 수평방향으로 일정거리 이격되어 배치된다. 전원선(20)은 전류가 흐르는 도체와 외부와 절연을 위해 상기 도체를 감싸고 있는 보호커버로 형성되어 있다.The pair of power lines 20 are arranged to be spaced apart a certain distance in the horizontal direction. The power line 20 is formed of a conductor through which a current flows and a protective cover surrounding the conductor for insulation from the outside.

발열봉(10)은 상기 한 쌍의 전원선(20) 사이에 수직방향으로 설치되어 있다. 상기 발열봉(10)은 스테인레스 재질로 이루어진 관체(11)로 형성되어 내부에 열선(12)이 길이방향으로 배치되고, 상기 열선(12)의 양단부는 각각 전원선(20)에 연결되는 연결단자(13)가 설치되며, 상기 관체(11)의 내부에는 전열재(14)가 충진되어진다. The heating rod 10 is installed in the vertical direction between the pair of power lines 20. The heating rod 10 is formed of a tubular body 11 made of stainless material so that the heating wire 12 is disposed in the longitudinal direction therein, and both ends of the heating wire 12 are connected to the power wires 20, respectively. (13) is installed, the heat transfer material 14 is filled in the inside of the tube (11).

상기 관체(11)의 양단부는 마개(15)가 설치되어 관체(11) 내부의 열선(12)이나 전열재(14)를 수분으로 보하게 되고, 전원선(20)과 연결단자(13)의 접속점을 이중 슬리브단자(16)로 수납하게 된다. 상기 전원선(20)은 (+)전원선(21)과 (-)전원선(22)을 포함하며, 상기 발열봉(10)의 양단부에 각각 접속된다. 상기 전원선(20)은 발열봉(10)의 연결단자(13)와 연결시키기 위해 한 쌍으로 이루어져 접속점에 슬리브단자(17)가 직렬로 접속된다. Both ends of the tubular body 11 is provided with a stopper 15 to keep the heating wire 12 or the heat transfer material 14 inside the tubular body 11 with water, and the power line 20 and the connection terminal 13 The connection point is received by the double sleeve terminal 16. The power line 20 includes a positive power line 21 and a negative power line 22 and is connected to both ends of the heating rod 10. The power line 20 is formed in a pair to connect with the connection terminal 13 of the heating rod 10, the sleeve terminal 17 is connected in series to the connection point.

상기와 같이 발열봉(10)과 전원선을 전기적으로 결선한 상태에서 결선부위를 사출성형에 의해 성형부(30)를 형성시킨다. 상기 성형부(30)는 T자형 밀봉캡이 되는 것이다. 성형부(30)는 산부(D1)와 골부(D2)가 반복적으로 형성되어 밀봉성을 향상시키되록 한다. 성형부(30)는 Br-Epoxy 난연제 재질의 수지로 이루어져 있으며, 수지의 수축률 차이에 의해 밀봉성이 향상된다. 즉, 산부(D1)는 수지가 많이 충진되어 수축이 많이 되고 골부(D2)는 수지충진이 적어 수축이 적게 이루어져 밀봉성이 향상된다. 다시 말해, 성형부(30)의 사출성형 후 냉각 시 골부(D2)와 산부(D1)의 냉각되는 온도차에 의해 수축효과를 증진하여 밀봉성을 향상시키는 것이다. As described above, in the state in which the heating rod 10 and the power line are electrically connected, the molded part 30 is formed by injection molding of the connection part. The molded part 30 is to be a T-shaped sealing cap. Molding portion 30 is to be formed by the peak portion (D1) and the valley portion (D2) to improve the sealability. The molded part 30 is made of a resin of Br-Epoxy flame retardant material, and the sealing property is improved by the shrinkage difference of the resin. In other words, the acid portion (D1) is filled with a lot of resin is a lot of shrinkage, bone portion (D2) is a resin filling is less shrinkage is made to improve the sealability. In other words, upon cooling after injection molding of the molding part 30, the shrinkage effect is enhanced by the difference in temperature between the bone part D2 and the ridge part D1, thereby improving the sealing property.

본 발명은 전원선(20)과 발열봉(10)에 오링이나 패킹과 같은 밀봉부재를 사 용하지 않고 사출성형에 의해 T자형 밀봉캡 및 전원선(10)과 T자형 밀봉캡 및 발열봉(10) 사이를 밀봉시킬 수 있어 공수를 줄여 제조비용을 절감하고, 생산성을 향상시킬 수 있다.According to the present invention, the T-shaped sealing cap and the power line 10 and the T-shaped sealing cap and the heating rod by injection molding without using a sealing member such as an O-ring or a packing in the power line 20 and the heating rod 10 ( 10) It can seal the gap, which can reduce manufacturing cost and improve productivity.

본 발명에 사용되는 Br-Epoxy 난연제 재질의 수지의 수축률은 5/1000가 가장 바람직하며, 가로 추축계수와 세로 수축계수의 차이로 인해 수축효과를 극대화하도록 한다. 가로방향 수축계수는 17%, 세로 방향 체적계수는 43%를 적용하는 것이 가장 바람직하다. The shrinkage of the resin of the Br-Epoxy flame retardant material used in the present invention is most preferably 5/1000, and maximizes the shrinkage effect due to the difference between the transverse axis and the longitudinal shrinkage coefficient. Most preferably, the transverse shrinkage coefficient is 17% and the longitudinal volume coefficient is 43%.

상기 가로방향 수축계수 A = (D1 - D2)/D1이며, 상기 세로방향 체적계수 B = 2Rb/2Ra로 계산할 수 있다. (Ra=산부반경, Rb = 골부반경) The transverse shrinkage coefficient A = (D1-D2) / D1, it can be calculated by the longitudinal volume coefficient B = 2Rb / 2Ra. (Ra = radius radius, Rb = radius radius)

상기 가로방향 수축계수와 세로방향 체적계수의 합이 50%~75%의 범위에 있는 경우에 수지의 안정률이 가장 좋게 되는데, 본 발명은 60%의 범위에 있어 수지의 안정률을 가장 좋게 한다.When the sum of the transverse shrinkage coefficient and the longitudinal volume coefficient is in the range of 50% to 75%, the stability of the resin is best, and the present invention provides the best stability of the resin in the range of 60%. .

상기 성형부(30)의 상면 및 하면은 평면으로 이루어지도록 하여 지면에 전열장치를 매설하는 경우 지면에 닿는 면적이 최적이 되도록 하여 설치(시공)가 용이하고 안정성을 유지할 수 있다. The upper and lower surfaces of the molding part 30 are formed in a flat surface, and when the heat transfer device is embedded in the ground, the area contacted with the ground is optimized so that installation (construction) is easy and stability can be maintained.

그리고 상기 성형부(30)는 수평부위(31)와 수직부위(32)가 연결되는 부위에 리브(33)가 형성되도록 하여 성형부(30)의 강도를 보강하도록 하여 혹한기에 노면 등에 높은 하중이 가해질 경우 변형이나 파손을 방지하여 성형부(30) 및 전선(20)과 성형부(30) 및 발열봉(10) 사이에 대한 수밀성의 파괴를 방지하고 누전발생을 방지할 수 있다.In addition, the molding part 30 has ribs 33 formed at a portion where the horizontal part 31 and the vertical part 32 are connected to reinforce the strength of the molding part 30 so that a high load on a cold road or the like is severe. When applied, it is possible to prevent deformation or breakage to prevent watertight destruction of the molded part 30 and the electric wire 20 and the molded part 30 and the heat generating rod 10, and to prevent the occurrence of a short circuit.

도 1은 종래의 매설형 전열장치의 전체 구조를 나타낸 도면1 is a view showing the overall structure of a conventional buried heat transfer device

도 2는 본 발명에 따른 매설형 전열장치의 전체 구조를 나타낸 평면도이다.Figure 2 is a plan view showing the overall structure of the embedded heating device according to the present invention.

도 3은 도 2의 성형부(30)의 요부를 나타낸 사시도이고,3 is a perspective view illustrating main parts of the molding part 30 of FIG. 2;

도 4는 도 2의 성형부(30)의 요부를 나타낸 평면도이며,4 is a plan view illustrating main parts of the molding part 30 of FIG. 2;

도 5는 도 2의 성형부(30)의 요부를 평단면도5 is a cross-sectional plan view of main parts of the molding part 30 of FIG.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

10: 발열봉 11: 관체 10: heating rod 11: tube

12: 열선 13: 연결단자 12: heating wire 13: connector

14: 전열재 15: 마개14: heat transfer material 15: stopper

16: 이중 슬리브단자 17: 슬리브단자16: dual sleeve terminal 17: sleeve terminal

20: 전원선 30: 성형부20: power line 30: molding part

31: 수평부위 32: 수직부위31: horizontal part 32: vertical part

33: 리브33: rib

Claims (2)

매설형 전열장치의 발열봉과 전원선을 전기적으로 결선한 상태에서 결선부위를 밀봉시키는 T자형 밀봉캡에 있어서,In the T-shaped sealing cap that seals the connection part while the heating rod and the power line of the buried heating device are electrically connected, T자형태로 사출성형을 하여 상기 결선부위를 커버링하는 성형부가 산부(D1)와 골부(D2)가 반복적으로 형성되되록 하고, 상기 성형부가 Br-Epoxy 난연제 재질의 수지로 이루어지며, 상기 성형부의 상면 및 하면이 평면으로 이루어지도록 형성함을 특징으로 하는 매설형 전열장치의 T자형 밀봉캡.Injection molding in the shape of a T-shape to cover the connection portion is formed so that the ridges (D1) and valleys (D2) are repeatedly formed, the molding portion is made of a Br-Epoxy flame retardant material, the upper surface of the molding portion And a T-shaped sealing cap of the buried heat transfer device, characterized in that the lower surface is formed to be flat. 청구항 1에 있어서 The method according to claim 1 상기 성형부의 수평부위와 수직부위가 연결되는 부위에 리브를 형성하여 상기 성형부의 강도를 보강함을 특징으로 하는 매설형 전열장치의 T자형 밀봉캡.T-shaped sealing cap of the buried heat transfer device, characterized in that to form a rib in a portion where the horizontal portion and the vertical portion of the forming portion is connected to reinforce the strength of the forming portion.
KR1020090083825A 2009-09-07 2009-09-07 T Type sealing cap of layed type electric heat appratus KR101124979B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101720908B1 (en) * 2016-10-24 2017-03-29 반성덕 Electric heat-generating device
KR101720909B1 (en) * 2016-10-24 2017-03-29 반성덕 Electric heat-generating device
KR20200032476A (en) * 2018-09-18 2020-03-26 임한복 Bench with wireless charging and heating

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100865668B1 (en) * 2007-06-25 2008-10-29 윤진호 Apparatus for sealing warm pipe of electric boiler system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101720908B1 (en) * 2016-10-24 2017-03-29 반성덕 Electric heat-generating device
KR101720909B1 (en) * 2016-10-24 2017-03-29 반성덕 Electric heat-generating device
KR20200032476A (en) * 2018-09-18 2020-03-26 임한복 Bench with wireless charging and heating

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