发明授权
- 专利标题: Induction heat fusing device
- 专利标题(中): 感应热定影装置
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申请号: US695916申请日: 1996-08-12
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公开(公告)号: US5822669A公开(公告)日: 1998-10-13
- 发明人: Eiji Okabayashi , Takeshi Kato , Satoru Yoneda
- 申请人: Eiji Okabayashi , Takeshi Kato , Satoru Yoneda
- 申请人地址: JPX Osaka
- 专利权人: Minolta Co., Ltd.
- 当前专利权人: Minolta Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX7-220724 19950829; JPX7-261826 19951009
- 主分类号: G03G15/20
- IPC分类号: G03G15/20 ; H05B6/14
摘要:
An induction heating device for printers, copiers and the like includes a magnetic coil assembly and a heated metal body that form a closed magnetic circuit. To compensate for the effects of heat radiation at the ends of the heated metal body, a greater amount of heat is generated at the ends of the body than at the center thereof. In one approach, the amount of heat is varied by changing physical parameters of the magnetic circuit, such as the spacing of the coil assemblies from the heated body, the relative sizes of the cores, and/or the relative magnetic permeability of the cores. In another approach, the electrical connection of the coils of multiple assemblies are arranged such that the coils in the center of the heated body are in parallel, and the coils at the ends of the body are in series with the parallel central coils.