公开(公告)号：EP1492386A4

公开(公告)日：2008-12-03

申请号：EP03715378

申请日：2003-03-19

Applicant: PANASONIC CORP

Inventor： KATAOKA AKIRA ,  HIROTA IZUO ,  AIHARA KATSUYUKI ,  MAKIO NOBUYOSHI

IPC: H05B6/12 ,  H05B6/04 ,  H05B6/06

CPC classification number: H05B6/062 ,  H05B6/1263 ,  H05B2206/022

Abstract: A highly safe induction heating device capable of preventing flow of a leak current to a human body and causing no danger of electric shock even when an electrostatic shield body is not exhibiting its function sufficiently. In the induction heating device, an electrostatic shield body is provided between a heating body and an induction heating coil. The induction heating device further includes detection means for detecting electrical connection of the electrostatic shield body and controls drive means for driving the induction heating coil according to the detection by the detection means.

公开(公告)号：EP1542509A4

公开(公告)日：2012-06-27

申请号：EP03784508

申请日：2003-08-01

Applicant: PANASONIC CORP

Inventor： KATAOKA AKIRA ,  HIROTA IZUO ,  AIHARA KATSUYUKI ,  MAKIO NOBUYOSHI

IPC: H05B6/12

CPC classification number: H05B6/1209 ,  H05B2206/022

公开(公告)号：EP1545159A4

公开(公告)日：2008-12-10

申请号：EP03788107

申请日：2003-08-13

Applicant: PANASONIC CORP

Inventor： KEISHIMA TOSHIHIRO ,  KATAOKA AKIRA ,  AIHARA KATSUYUKI ,  MAKIO NOBUYOSHI ,  GOTOU KAZUYA

IPC: H05B6/36 ,  H05B6/12

CPC classification number: H05B6/1245 ,  Y02B40/126 ,  Y10T29/4902

Abstract: An induction heating coil having little high-frequency loss and producing little hast is easily manufactured by covering a conductor with a first insulating material to form a wire, then bundling and twisting such wires to form a stranded wire, covering the outer surface of the stranded wire with a second insulating material to form a coil wire, winding the coil wire a certain number of turns into a coil portion having a certain shape. The end portion of the coil portion and a connecting portion are heated with Joule heat while applying pressure to the end portion at the same time, so that the first and second insulating materials are fused and pressure-bonded to the conductor. Thus a terminal portion for the external connection of the coil portion is fixed while keeping the electrical connection with the conductor. Accordingly, an induction heating coil of low cost and stable quality can be easily manufactured. The induction heating coil producing little heat because of its high-frequency loss and suitable for induction heating of a highly-conductive nonmagnetic substance such as aluminum.