US 12,395,056 B2
Actuator with coil holder having thin fixing part
Shinji Hatano, Nagano (JP)
Assigned to NIDEC INSTRUMENTS CORPORATION, Nagano (JP)
Filed by NIDEC INSTRUMENTS CORPORATION, Nagano (JP)
Filed on Aug. 23, 2023, as Appl. No. 18/454,770.
Claims priority of application No. 2022-136505 (JP), filed on Aug. 30, 2022.
Prior Publication US 2024/0072629 A1, Feb. 29, 2024
Int. Cl. H02K 33/16 (2006.01); H02K 33/18 (2006.01)
CPC H02K 33/18 (2013.01) [H02K 33/16 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An actuator comprising:
a movable body;
a support body comprising a coil holder;
a connection body which is connected with the movable body and the support body; and
a magnetic drive circuit which comprises a coil held by the coil holder and a magnet facing the coil in a first direction and is structured to vibrate the movable body with respect to the support body in a second direction intersecting the first direction;
wherein the coil holder comprises a plate part which surrounds at least a part of the coil;
the movable body comprises a yoke which holds the magnet;
the yoke comprises a first facing part which faces the coil from one side in the first direction and a second facing part which faces the coil from an other side in the first direction;
the magnet is fixed to at least one of the first facing part and the second facing part;
the plate part comprises a coil holding part along an outer edge of the coil and a connection body fixing part whose plate thickness in the first direction is thinner than a plate thickness of the coil holding part; and
the connection body comprises at least one of a first connection body which connects the first facing part with the connection body fixing part and a second connection body which connects the second facing part with the connection body fixing part.