公开(公告)号：EP3611999A1

公开(公告)日：2020-02-19

申请号：EP18784228.1

申请日：2018-04-03

Applicant: NHK Spring Co., Ltd.

Inventor： HANAMACHI, Toshihiko ,  SEKIYA, Kenji ,  HASHIMOTO, Daisuke ,  HIRANO, Satoshi ,  TAKIMOTO, Masaru ,  TAKAHARA, Go ,  ARAKI, Yoshihito ,  TATSUMI, Arata ,  KAWASAKI, Takashi ,  TOYAMA, Yuki ,  ANZAI, Satoshi

IPC: H05B3/48 ,  H05B3/10

Abstract: A small diameter sheath heater with improved reliability is provided. The sheath heater according to one embodiment of the present invention includes a metal sheath, a heating wire having a band shape, the heating wire arranged with a space within the metal sheath so as to rotate with respect to an axis direction of the metal sheath, an insulating material arranged in the space, and connection terminals arranged at one end of the metal sheath, the connection terminals electrically connected with both ends of the heating wire respectively.