US 12,224,640 B2
Vibration generating device and electronic device
Mikio Umehara, Yonago (JP); and Yutaka Kamogi, Yonago (JP)
Assigned to MINEBEA MITSUMI Inc., Nagano (JP)
Filed by MINEBEA MITSUMI Inc., Nagano (JP)
Filed on Dec. 1, 2023, as Appl. No. 18/525,955.
Application 18/525,955 is a continuation of application No. 17/931,163, filed on Sep. 12, 2022, granted, now 11,901,788.
Application 17/931,163 is a continuation of application No. 17/315,761, filed on May 10, 2021, granted, now 11,476,743, issued on Oct. 18, 2022.
Application 17/315,761 is a continuation of application No. 16/898,749, filed on Jun. 11, 2020, granted, now 11,043,887, issued on Jun. 22, 2021.
Application 16/898,749 is a continuation of application No. 15/822,359, filed on Nov. 27, 2017, granted, now 10,715,020, issued on Jul. 14, 2020.
Claims priority of application No. 2016-230688 (JP), filed on Nov. 28, 2016.
Prior Publication US 2024/0106311 A1, Mar. 28, 2024
Int. Cl. H02K 33/02 (2006.01); H01F 7/20 (2006.01)
CPC H02K 33/02 (2013.01) [H01F 7/20 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A vibration generating device comprising:
a base;
a coil attached to the base;
a plate formed with a magnetic body, the plate opposing the base;
a plurality of elastic members fixed to a part of the plate outside the coil and a part of the base outside the coil,
a gap between the plate and the base corresponds to a thickness of the elastic member,
a space between the plurality of elastic members in a circumferential direction, wherein
the plurality of elastic members includes a first elastic member,
the space can accommodate a part of the deformed first elastic member.