Patent ID: 11919664
Assignee: JAPAN AEROSPACE EXPLORATION AGENCY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  G  H  Y | IPC B  G  H

Claim 1:
2. The reaction wheel apparatus according to claim 1, wherein the rigid-flex substrate includes a first rigid circuit board,
the first rigid circuit board of the rigid-flex substrate has a first through opening penetrating in the thickness direction of the first rigid circuit board,
the first through opening has a nut accommodation extending substantially parallel to a side edge of the first rigid circuit board and a screw accommodation that opens to the side edge of the first rigid circuit board and extends orthogonally to the nut accommodation,
a nut is accommodated in the nut accommodation,
at least one first frame neighboring the first rigid circuit board has a through hole at a position aligned with the screw accommodation of the first through opening of the first rigid circuit board and the nut accommodated in the nut accommodation, and
the at least one first rigid circuit board and the at least first frame are connected by driving the screw inserted from the outside of the at least one first frame into the nut through the through hole and the screw accommodation.