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Polymer actuator, and valve and shaft sealing structure using same

An actuator, polymer technology, applied in piezoelectric/electrostrictive/magnetostrictive devices, piezoelectric effect/electrostrictive or magnetostrictive motors, valve devices, etc., can solve the complex internal structure and other problems, to achieve the effect of excellent performance, high sealing performance, and prevention of internal deterioration

Inactive Publication Date: 2011-01-26
KITZ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the internal structure of the device with built-in sealing device is complicated

Method used

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  • Polymer actuator, and valve and shaft sealing structure using same
  • Polymer actuator, and valve and shaft sealing structure using same
  • Polymer actuator, and valve and shaft sealing structure using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0139] Hereinafter, examples of the polymer actuator in the present invention will be described. In this example, in order to confirm whether the deformation mode of the electrically stimulating polymer material that deforms other than the site when an electrical external stimulus is applied can be used in a polymer actuator, a predetermined voltage is applied, and measurements are made. its displacement. pass Figure 13 The displacement measuring device 75 shown performs this measurement.

[0140] The displacement measuring device 75 has a frame 77 for fixing an object to be measured (gel sheet of human muscle (registered trademark), product number H0-1) 76 as an electrically stimulating polymer material, and the frame 77 can be Mobile mobile station 78 . In addition, there is a high-voltage power supply (manufactured by Songding Preeision Co., Ltd., model HJPQ-30P1) 79 connected to fixed electrodes (not shown) sandwiching the object 76 to be measured, and capable of apply...

Embodiment 2

[0149] The distribution of the electric field vector when a voltage is applied to the polymer actuator of the present invention was analyzed by simulation. For comparison, for Figure 30 The shown shaft seal structure, that is, the polymer material (shaft seal body) 1 clamped by the fixed electrode part with the same applied area is also simulated, and the polymer material 1 and the electrode holder with different applied area The simulation was carried out for each of the electrostimulatory polymer materials (drivers) 11 of the present invention. This simulation is performed by analyzing the distribution of electric field vectors generated inside each electrostimulatory polymer material when an electric field is applied to the electrodes.

[0150] As the conditions at this time, for the polymer material 1 sandwiched by the electrode parts 2 and 3 equal to the applied electrodes, the dimensions of the electrode parts 2 and 3 are set to be 5 mm in outer diameter and 1 mm in th...

Embodiment 3

[0158] Furthermore, a polymer actuator having a structure different from that of Example 2 was configured, and a voltage was applied to the polymer actuator, and the distribution of the electric field vector at this time was analyzed by simulation in the same manner as in Example 2. In this example, as Figure 27 As shown, the electrostimulatory polymer material (driver) 81 has a hollow ring shape whose outer peripheral surface is as large as a hemispherical surface. In addition, on the upper and lower sides of the driving body 81 , an upper-side electrode 82 and a lower-side electrode 83 are arranged. The contact portion of the driver 81 with the upper electrode 82 is an upper planar portion, while the contact portion with the lower electrode 83 is a lower planar portion and an inner curved portion.

[0159] If an electrical external stimulus is applied to the driving body 81 from the electrodes 82, 83, a Figure 28The electric field vector distribution as shown. If the re...

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Abstract

Provided is a polymer actuator that can be used in various driving sources. The amount of deformation of the polymer actuator may be used especially for a valve and a shaft sealing device. The polymer actuator comprises a driver which is deformed through electrical stimulation, and electrodes disposed facing upper and lower surfaces of the driver in order to apply positive and negative electrical stimulations to the driver in a planar manner. The electrodes have different electrical stimulation application regions on positive and negative sides, respectively, and thus have an electric field distribution that induces uneven stress distribution to cause the driver to deform and bend toward the side where an opposing electrical stimulation application region is not formed.

Description

technical field [0001] The present invention relates to a polymer actuator using a polymer material, and particularly relates to a valve and a shaft seal structure suitable for opening and closing a flow path and controlling a flow rate using the polymer actuator. Background technique [0002] Conventionally, for example, in the case of constantly sealing a fluid as a control of a flow path in a container, a shaft sealing device using a sealing member is generally used. In order to seal various fluids such as air / water / oil / gas as the sealing member in this shaft sealing device, for example, an annular O-ring or a packing ring having a substantially circular cross section is used. The main function of these sealing parts is to seal the fluid, so high sealing performance is required. [0003] Therefore, in the seal member, generally, in one part of the shaft seal device, a groove having a substantially rectangular cross-section is installed axially in the same plane as the sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N11/00C08L75/04H02N2/00H10N30/20H10N30/87
CPCH01L41/0973F16K31/004F16K31/02C08L75/08Y10T137/2213H10N30/204H10N30/857H02N11/00
Inventor 青木和弘山崎知哉五味知佳士
Owner KITZ CORP
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