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1.发明授权IMPROVED IMMERSION HEATING ELEMENT WITH HIGHLY THERMALLY CONDUCTIVE POLYMERIC COATING 失效有聚合物涂层的高的热导率的改进的浸入式加热器
公开(公告)号：EP0945046B1
公开(公告)日：2007-02-14
申请号：EP97953245.4
申请日：1997-12-02
CPC分类号： H05B3/04 , H05B3/46 , H05B3/48 , H05B3/82 , H05B2203/021
摘要： Electrical resistance heating elements (100) are provided which are useful in heating fluid mediums, such as air and water. The heating elements include an element body (100) having a supporting surface (10) and a resistance wire (14) wound onto the supporting surface (10) which is connected to a pair of terminal end portions (16 and 12). Disposed over the resistance wire (14), and over most of the supporting surface (10), is a polymeric coating (30) which hermetically encapsulates and electrically insulates the resistance wire (14) from the fluids to be heated. This thermally-conductive polymer coating (30) has a thermal conductivity value of at least about 0.5 W/mK. Improved properties are preferably provided by ceramic powder, aluminum oxide and magnesium oxide, and glass fiber additives.
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2.发明公开IMPROVED IMMERSION HEATING ELEMENT WITH HIGHLY THERMALLY CONDUCTIVE POLYMERIC COATING 失效有聚合物涂层的高的热导率的改进的浸入式加热器
公开(公告)号：EP0945046A1
公开(公告)日：1999-09-29
申请号：EP97953245.0
申请日：1997-12-02
IPC分类号： H05B3
CPC分类号： H05B3/04 , H05B3/46 , H05B3/48 , H05B3/82 , H05B2203/021
摘要： Electrical resistance heating elements (100) are provided which are useful in heating fluid mediums, such as air and water. The heating elements include an element body (100) having a supporting surface (10) and a resistance wire (14) wound onto the supporting surface (10) which is connected to a pair of terminal end portions (16 and 12). Disposed over the resistance wire (14), and over most of the supporting surface (10), is a polymeric coating (30) which hermetically encapsulates and electrically insulates the resistance wire (14) from the fluids to be heated. This thermally-conductive polymer coating (30) has a thermal conductivity value of at least about 0.5 W/mK. Improved properties are preferably provided by ceramic powder, aluminum oxide and magnesium oxide, and glass fiber additives.
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公开(公告)号：EP0941632B1
公开(公告)日：2006-03-01
申请号：EP97947631.4
申请日：1997-11-20
CPC分类号： H05B3/48 , H05B3/04 , H05B3/46 , H05B3/82 , H05B2203/021
摘要： Electrical resistance heating element, hot water heaters containing such elements, and method of preparing such elements are provided. The electrical resistance heating elements can be disposed through a wall of a tank for heating fluid, such as water. They include a skeletal support frame (70), having a first supporting surface (69), thereon. They also include a resistance wire (66) wound onto the first supporting surface (69) and preferably connected to at least a pair of terminal end portions. The support frame (70) and resistance wire (66) are then hermetically encapsulated and electrically insulated within a thermally conductive polymeric coating (64). The skeletal support frame (70) improves injection molding operations for encapsulating the resistance wire (66), and can include heat transfer fins (62) for improving thermal conductivity.
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公开(公告)号：EP0941632A1
公开(公告)日：1999-09-15
申请号：EP97947631.0
申请日：1997-11-20
CPC分类号： H05B3/48 , H05B3/04 , H05B3/46 , H05B3/82 , H05B2203/021
摘要： Electrical resistance heating element, hot water heaters containing such elements, and method of preparing such elements are provided. The electrical resistance heating elements can be disposed through a wall of a tank for heating fluid, such as water. They include a skeletal support frame (70), having a first supporting surface (69), thereon. They also include a resistance wire (66) wound onto the first supporting surface (69) and preferably connected to at least a pair of terminal end portions. The support frame (70) and resistance wire (66) are then hermetically encapsulated and electrically insulated within a thermally conductive polymeric coating (64). The skeletal support frame (70) improves injection molding operations for encapsulating the resistance wire (66), and can include heat transfer fins (62) for improving thermal conductivity.
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