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公开(公告)号：US10819203B2
公开(公告)日：2020-10-27
申请号：US16311071
申请日：2017-05-02
IPC分类号： H02K33/06 , H02K33/16 , H02K41/035 , H02K3/46
摘要： A linear actuator is provided that has a configuration capable of inhibiting contact between an inner core and a plate spring that is connected to the inner core and an outer core, and which is realized by a configuration that is easy to assemble. A stator is arranged in an opening section of a through-hole in the inner core, and has a spacer through which a shaft passes. An outer frame section of the plate spring is connected to the outer core, and a fixed section of the plate spring is connected to the inner core through the spacer in a state in which the shaft passes therethrough. The spacer includes a penetration section having an insertion hole which the shaft is inserted through, and restriction sections and which restrict a displacement of a predetermined amount or more of the plate spring to the inner core side.
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公开(公告)号：US20170194850A1
公开(公告)日：2017-07-06
申请号：US15463247
申请日：2017-03-20
IPC分类号： H02K33/18
CPC分类号： H02K33/18 , H02K33/16 , H02K41/035
摘要： The linear actuator includes an inner core (2), and an outer core (3) provided outside the inner core in a radial direction while being supported by a pair of flat springs (41 and 42). Permanent magnets (23 and 24) are formed at one of the inner core and the outer core, and magnetic pole portions (31a and 32a) are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers (71 and 72) are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and at least an engagement portion including a recess and a protrusion are arranged at the abutting portions.
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公开(公告)号：US09882460B2
公开(公告)日：2018-01-30
申请号：US15463247
申请日：2017-03-20
IPC分类号： H02K33/18
CPC分类号： H02K33/18 , H02K33/16 , H02K41/035
摘要： The linear actuator includes an inner core (2), and an outer core (3) provided outside the inner core in a radial direction while being supported by a pair of flat springs (41 and 42). Permanent magnets (23 and 24) are formed at one of the inner core and the outer core, and magnetic pole portions (31a and 32a) are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers (71 and 72) are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and at least an engagement portion including a recess and a protrusion are arranged at the abutting portions.
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