US 11,953,753 B2
Voice coil motor
Sangjun Min, Seoul (KR); Sanghee Lee, Seoul (KR); Hyuneo Yoo, Seoul (KR); Seungki Kim, Seoul (KR); and Jinsuk Han, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Filed by LG INNOTEK CO., LTD., Seoul (KR)
Filed on Nov. 23, 2022, as Appl. No. 18/058,304.
Application 18/058,304 is a continuation of application No. 16/911,037, filed on Jun. 24, 2020, granted, now 11,536,928.
Application 16/911,037 is a continuation of application No. 16/109,076, filed on Aug. 22, 2018, granted, now 10,739,550, issued on Aug. 11, 2020.
Application 16/109,076 is a continuation of application No. 15/597,913, filed on May 17, 2017, granted, now 10,082,637, issued on Sep. 25, 2018.
Application 15/597,913 is a continuation of application No. 15/010,680, filed on Jan. 29, 2016, granted, now 9,658,425, issued on May 23, 2017.
Application 15/010,680 is a continuation of application No. 14/333,297, filed on Jul. 16, 2014, granted, now 9,250,415, issued on Feb. 2, 2016.
Application 14/333,297 is a continuation of application No. 13/180,869, filed on Jul. 12, 2011, granted, now 8,810,936, issued on Aug. 19, 2014.
Claims priority of application No. 10-2010-0067051 (KR), filed on Jul. 12, 2010; application No. 10-2010-0071326 (KR), filed on Jul. 23, 2010; application No. 10-2010-0071635 (KR), filed on Jul. 23, 2010; and application No. 10-2010-0102737 (KR), filed on Oct. 21, 2010.
Prior Publication US 2023/0085828 A1, Mar. 23, 2023
Int. Cl. G02B 7/04 (2021.01); G02B 7/02 (2021.01); G03B 3/10 (2021.01); G03B 13/34 (2021.01); H02K 41/03 (2006.01); H02K 41/035 (2006.01); G11B 7/00 (2006.01)
CPC G02B 7/04 (2013.01) [G02B 7/02 (2013.01); G03B 3/10 (2013.01); G03B 13/34 (2013.01); H02K 41/031 (2013.01); H02K 41/0354 (2013.01); H02K 41/0356 (2013.01); G11B 7/00 (2013.01); H02K 41/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A voice coil motor comprising:
a base;
a bobbin disposed on the base;
a coil disposed on the bobbin;
a magnet facing the coil; and
a first elastic member coupled to the bobbin,
wherein the first elastic member comprises a first elastic unit and a second elastic unit,
wherein the first elastic unit comprises a first inner elastic unit coupled to the bobbin, a first outer elastic unit disposed outside the first inner elastic unit, and a first connection unit connecting the first inner elastic unit and the first outer elastic unit,
wherein the second elastic unit comprises a second inner elastic unit coupled to the bobbin, a second outer elastic unit disposed outside the second inner elastic unit, and a second connection unit connecting the second inner elastic unit and the second outer elastic unit, and
wherein the first inner elastic unit comprises a first area having a first hole adjacent to one end of the first connection unit connected to the first inner elastic unit, and a second area having a second hole spaced apart from the first hole,
wherein the second inner elastic unit comprises a third area having a third hole adjacent to one end of the second connection unit connected to the second inner elastic unit, and a fourth area having a fourth hole spaced apart from the third hole,
wherein the first hole and the second hole are spaced apart from outer surfaces of the first inner elastic unit,
wherein the first hole comprises a first hole part and a second hole part having a width smaller than a width of the first hole part,
wherein the third hole comprises a shape different from the fourth hole.