- 专利标题： Heater, image heating device, and image forming apparatus having plural heating resistors and having plural electric contact portions connected to different poles of a power supply
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申请号： US16882967申请日： 2020-05-26
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公开(公告)号： US11067927B2公开(公告)日： 2021-07-20
- 发明人: Hideaki Yonekubo
- 申请人： CANON KABUSHIKI KAISHA
- 申请人地址： JP Tokyo
- 专利权人： CANON KABUSHIKI KAISHA
- 当前专利权人： CANON KABUSHIKI KAISHA
- 当前专利权人地址： JP Tokyo
- 代理机构： Venable LLP
- 优先权： JPJP2019-098536 20190527
- 主分类号： G03G15/20
- IPC分类号： G03G15/20 ; G03G15/00
摘要：
A heater of an image heating device, the heater including: a substrate; a first heating resistor and a second heating resistor on the substrate; first to third electric contact portions for electric connection to a power supply; a first conductive portion that connects the first electric contact portion with the first heating resistor; a second conductive portion that connects the second electric contact portion the second heating resistor; and a third conductive portion that connects the third electric contact portion and the first heating resistor and also connects the third contact portion with the second heating resistor, wherein the first electric contact portion is provided close to one longitudinal end of the substrate, the second electric contact portion is provided close to the other longitudinal end of the substrate, and the third electric contact portion is provided close to the center of the substrate in the longitudinal direction.
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