ELECTROMAGNET DEVICE
First Claim
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1. A polar electromagnet device comprising:
- a drive shaft comprising an axis center supported so as to reciprocate in an axis center direction at a center hole of a spool wound with a coil; and
a movable iron core attached to a lower end of the drive shaft on the axis center,wherein the drive shaft is reciprocated with the movable iron core which reciprocates based on excitation and demagnetization of the coil, andwherein a permanent magnet is integrally arranged at the movable iron core on the same axis center.
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Abstract
A polar electromagnet device has a drive shaft comprising an axis center supported so as to reciprocate in an axis center direction at a center hole of a spool wound with a coil, and a movable iron core attached to a lower end of the drive shaft on the axis center. The drive shaft is reciprocated with the movable iron core which reciprocates based on excitation and demagnetization of the coil. A permanent magnet is integrally arranged at the movable iron core on the same axis center.
94 Citations
4 Claims
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1. A polar electromagnet device comprising:
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a drive shaft comprising an axis center supported so as to reciprocate in an axis center direction at a center hole of a spool wound with a coil; and a movable iron core attached to a lower end of the drive shaft on the axis center, wherein the drive shaft is reciprocated with the movable iron core which reciprocates based on excitation and demagnetization of the coil, and wherein a permanent magnet is integrally arranged at the movable iron core on the same axis center. - View Dependent Claims (2, 3, 4)
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Specification