Actuator
AssigneeHyosung Heavy Industries Corporation
InventorsDo Jin KIM, Seung Ki KIM, Sung Ho LEE
Life of this patent
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Abstract
An actuator is proposed. A housing and a housing cap may constitute the exterior of the actuator, and a driving pin may be installed in an inner space of the housing such that the driving pin is moved by being guided by a guide. A cylindrical bobbin having one open end portion may be installed at the driving pin to be moved integrally therewith, and a coil may be installed at the bobbin. A permanent magnet and an iron core may be stacked in the inner space by the guide. A pin iron core may be provided at the driving pin, and a pin coil may be installed in a groove of the pin iron core.
Claims9
An actuator comprising:
- a housing having an inner space defined therein;
- a driving pin installed at a center of the housing by passing therethrough such that the driving pin moves rectilinearly;
- a bobbin installed at the driving pin and moving integrally with the driving pin when the driving pin moves;
- a coil installed at the bobbin and moving integrally with the bobbin;
- a pin coil installed at the driving pin and moving integrally with the driving pin;
- a permanent magnet installed in the inner space of the housing and generating magnetism;
- and
- an iron core allowing a flow path of a magnetic flux coming from the permanent magnet to be formed, wherein the iron core is installed in the inner space such that the iron core faces each of the coil installed at the bobbin and the pin coil installed at the driving pin by being spaced apart by a predetermined distance therefrom.
Dependencies are inferred from the claim text.