High-voltage uniform electric field polarization device

A uniform electric field, high voltage technology, applied in piezoelectric/electrostrictive/magnetostrictive devices, circuits, electrical components, etc., can solve the problems of low charge, poor charge stability, affecting product quality, etc., to improve production The effect of improved efficiency, sensitivity and stability

Inactive Publication Date: 2020-01-31
湖南声仪测控科技有限责任公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual operation, sometimes the amount of charge attached to the electret is not high, the charge stability is poor and the phenomenon of running out of charge occurs, which directly affects the quality of the product.
The original chemical electrode device adopts a discharge needle scheme, and the discharge high voltage is relatively concentrated. If the discharge voltage is too high, it will burn the negative high voltage power grid and the electret surface of the workpiece, so that the working voltage can not go up, the charge attachment of the workpiece is unstable, and the product sensitivity Low, the rework rate remains high, which directly affects the production schedule and labor intensity of employees

Method used

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  • High-voltage uniform electric field polarization device

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

[0016] like figure 1 As shown, a high-voltage uniform electric field polarization device includes a base 1, a fixed frame 2, a workpiece 3, an electrode 4, a support 5, an adjustment device 6, and a discharge needle 7. The fixed frame 2 is movably connected to the top of the base 1, and the discharge needle 7 The number is three, and the three discharge needles 7 are evenly connected to the fixed frame 2 in an equilateral triangle. The discharge needles 7 are connected to the external hi...

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Abstract

The invention discloses a high-voltage uniform electric field polarization device and relates to the technical field of a polarization device. The device comprises a base, a fixing frame, a workpiece,an electrode, a support, an adjusting device and a spray point, wherein the fixing frame is movably connected above the base, the number of the spray points is three, the three spray points are uniformly connected with the fixing frame in an equilateral triangle shape, the spray points are connected with an external high-voltage power supply in parallel, the support is arranged below the base, the support is connected with the adjusting device, the adjusting device is connected with the middle of the base, the support is movably connected with the base, the support is connected with an electrode, the electrode is located under the fixing frame, the electrode is electrically connected with the ground, and the electrode is connected with a workpiece. The device is advantaged in that the polarization electric field is uniform, a polarization voltage is high, product quality is stable, and production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of electrets, in particular to a high-voltage uniform electric field polarization device. Background technique [0002] Common dielectrics are polarized under the action of an external electric field, and when the external electric field is removed, the polarization of the dielectric also disappears. Electret is a dielectric with long-term charges, and its charges can be polarized charges that are "frozen" due to polarization, or positive and negative charges trapped in the "trap" on the surface or in the body. Similar to the permanent magnet with remanence after magnetization of the steel rod, people also call the dielectric with long-term retained charge permanent electricity, which is customarily called electret. [0003] In the production process of microphone products, the polarization of electret is a very important process. However, in actual operation, sometimes the amount of charge attached to the...

Claims

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Application Information

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IPC IPC(8): H01L41/257
CPCH10N30/045
Inventor 罗天兰谷强颜平
Owner 湖南声仪测控科技有限责任公司
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