发明申请
- 专利标题： Sheath Heater Capable of Reducing Electro-magnetic Wave
- 专利标题（中）： 能减少电磁波的护套加热器
-
申请号： US14068343申请日： 2013-10-31
-
公开(公告)号： US20150114949A1公开(公告)日： 2015-04-30
- 发明人: Sang Won LEE
- 申请人： Sang Won LEE
- 主分类号： H05B3/48
- IPC分类号： H05B3/48
摘要：
The invention provides a sheath heater for reducing magnetic field drastically using destructive interference, in which a electrical-heating wire with terminals connected to both ends thereof is inserted in a metal tube so as to expose the terminals on both ends of the metal tube and insulating powder is filled so as to keep the inserted electrical-heating wire and the metal tube from touching each other, and two wires of the electrical-heating wire have one ends connected to each other so as not to touch each other, and the terminals connected to the ends are exposed to one of two ends of the metal tube. Since two electrical-heating wires having opposite directions are disposed in the metal tube and the generated the magnetic field act in opposite directions with respect to each other, they can be reduced drastically.
信息查询
