Title:
DRAWING ROLLER AND INDUCTION HEATING ROLLER DEVICE EMPLOYING SAME
Document Type and Number:
WIPO Patent Application WO/2019/098411
Kind Code:
A1
Abstract:
The present invention relates to a drawing roller and an induction heating roller device, wherein electric energy is converted into thermal energy by electromagnetic induction so as to heat an object. The present invention provides a drawing roller having a winding configured around the outer peripheral surface of a core to be able to generate heat, wherein a work coil is wound around the outer peripheral surface of the core so as to form a magnetic field in such a direction that the same rotates around the center axis of the core. In addition, an induction heating roller device to which the above structure is applied comprises: a rotating shaft; a base having a bearing provided such that the same rotatably supports the rotating shaft; a core fixedly installed on the base; a work coil wound around the outer peripheral surface of the core so as to form a magnetic field in such a direction that the same rotates around the center axis of the core; and a controller for selectively applying a current to the work coil so as to perform heating control. The present invention, which has the above structure, is advantageous in that, since the work coil wound outside the core forms a magnetic field in a direction intersecting with the longitudinal direction of the core, loss resulting from superimposition of magnetic fields can be reduced substantially, and heat generating efficiency can be improved accordingly.
Inventors:
CHO JUNG-HYUK (KR)
Application Number:
PCT/KR2017/012990
Publication Date:
May 23, 2019
Filing Date:
November 16, 2017
Export Citation:
Assignee:
DONGHWAHITECH CO LTD (KR)
International Classes:
H05B6/14; H05B6/06; H05B6/36
Foreign References:
| JP2006126410A | 2006-05-18 | |||
| JP2002162848A | 2002-06-07 | |||
| JP2008258014A | 2008-10-23 | |||
| KR20070031732A | 2007-03-20 | |||
| JP2008058705A | 2008-03-13 |
Attorney, Agent or Firm:
PUKYUNG INTERNATIONAL PATENT & LAW FIRM (KR)
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