POLYMER ACTUATOR, AND VALVE AND SHAFT-SEALING STRUCTURE EACH USING THE SAME
First Claim
1. A polymer actuator comprising:
- a power driver deformed upon receiving external electro stimuli; and
electrodes disposed on upper and lower surface sides of the power driver in an opposite manner for applying positive and negative external electro stimuli to the power driver in a planar fashion;
wherein the electrodes have different stimuli application regions to have different electrical field distributions for causing distribution of stress generated in the power driver to be eccentrically located on one of positive and negative sides, thereby bending and deforming the power driver onto a side on which the opposite stimuli application regions do not exist.
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Abstract
The object is to provide a polymer actuator capable of being utilized for any of various drive sources, wherein the amount of deformation of the polymer actuator can particularly be used also for a valve or shaft-sealing device. The polymer actuator comprises a power driver deformed upon receiving electro stimuli and electrodes disposed on the upper and lower surface sides of the power driver in an opposite manner for applying positive and negative electro stimuli to the power driver in a planar fashion. The electrodes have different stimuli application regions to have different electrical field distributions for causing distribution of stress-generated in the power driver to be eccentrically located on one of positive and negative sides, thereby bending and deforming the power driver onto a side on which the opposite stimuli application regions do not exist.
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Citations
12 Claims
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1. A polymer actuator comprising:
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a power driver deformed upon receiving external electro stimuli; and electrodes disposed on upper and lower surface sides of the power driver in an opposite manner for applying positive and negative external electro stimuli to the power driver in a planar fashion; wherein the electrodes have different stimuli application regions to have different electrical field distributions for causing distribution of stress generated in the power driver to be eccentrically located on one of positive and negative sides, thereby bending and deforming the power driver onto a side on which the opposite stimuli application regions do not exist. - View Dependent Claims (4, 5, 6, 7, 8)
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2. A polymer actuator comprising:
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a power driver deformed upon receiving external electro stimuli; and fixed electrodes fixed to upper and lower surface sides of the power driver in an opposite manner for applying positive and negative external electro stimuli to the power driver in a planar fashion; wherein the fixed electrodes have different stimuli application regions to have different electrical field distributions for causing distribution of stress generated in the power driver to be eccentrically located on one of positive and negative sides, thereby bending and deforming the power driver onto a side on which the opposite stimuli application regions do not exist. - View Dependent Claims (3, 9, 10, 11, 12)
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Specification