HEATER MEMBER, HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

• Main Authors: ADACHI TOMOYA, SAMEI MASAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 04.03.2022
• Subjects: CINEMATOGRAPHY; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

To suppress reduction in an amount of heat generated by conductors that connect ends of a plurality of resistors in parallel in a short direction.SOLUTION: A heater member 330 has: a resistance pattern 332a that has a plurality of rows of resistors 332a1-332a5 formed in a longitudinal direction of a substrate 331 and generating heat upon energization, wherein the plurality of rows of resistors is connected in parallel while being separated from each other in a short direction orthogonal to the longitudinal direction of the substrate; and conductors 338c1-338c5 that have smaller resistivity than resistivity of the resistors and connect the ends of the resistors adjacent to each other in parallel at both ends in the longitudinal direction of the resistor pattern, wherein a part of the conductor extends in the short direction and partially overlaps the ends of the resistor.SELECTED DRAWING: Figure 6B 【課題】複数本の抵抗体の端部を短手方向で並列接続する導体による発熱量低減を抑制する。【解決手段】ヒーター部材３３０は、基材３３１の長手方向に形成され通電によって発熱する複数列の抵抗体３３２ａ１～３３２ａ５を有し、当該複数列の抵抗体が基材の長手方向と直交する短手方向で相互に離間した状態で並列接続された抵抗パターン３３２ａと、抵抗体の抵抗率よりも小さい抵抗率を有し、抵抗パターンの長手方向両端部において互いに隣接する抵抗体の端部同士を並列接続する導体であって、当該導体の一部が短手方向に延在して抵抗体の端部に部分的に重なり合っている導体３３８ｃ１～３３８ｃ５と、を有する。【選択図】図６Ｂ