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Ceramic capacitor

A technology of ceramic capacitors and ceramic dielectrics, which is applied in the direction of capacitors, capacitor manufacturing, tubular capacitors, etc., can solve the problems of low withstand voltage of capacitor dielectrics, influence on safety, and large loss, and achieve improved withstand voltage and dielectric constant. The effect of increasing capacity and reducing dielectric loss

Inactive Publication Date: 2016-05-18
SHANDONG JIAOTONG UNIV
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  • Application Information

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Problems solved by technology

The dielectric withstand voltage of this kind of capacitor is not high, and the loss is large, which affects the safety of use

Method used

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  • Ceramic capacitor

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] Such as figure 1 As shown, a schematic structural view of the ceramic capacitor of the present invention is provided, which is composed of an outer plate 1, an inner plate 2, a ceramic medium 3, an upper lead 4, a lower lead 5, an insulating end cover 6, and an insulating layer 7. The outer pole plate 1 and the inner pole plate 2 shown are in the shape of a cylinder, the inner pole plate 2 is located in the outer pole plate 1 and arranged coaxially with it, the outer pole plate 1 and the inner pole plate 2 are made of conductive metal materials, such as aluminum, and The two plates that make up a capacitor. The ceramic medium 3 is located between the inner pole plate 2 and the outer pole plate 1. The ceramic medium 3 has a high dielectric constant and withstand voltage performance, which is conducive to forming a capacitor with a large capacitan...

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Abstract

The invention provides a ceramic capacitor including an external polar plate, an internal polar plate, an upper leading wire, and a lower leading wire. The external polar plate and the internal polar plate are made from metallic conductor materials. The ceramic capacitor is characterized in that the external polar plate and the internal polar plate have cylinder shapes, and the external polar plate and the internal polar plate are opened at one ends and are arranged coaxially. The space between the internal polar plate and the external polar plate is filled with a ceramic dielectric. An opening of the external polar plate is provided with an insulating end cover which seals the ceramic dielectric and the internal polar plate. An insulating layer covers the periphery of the external polar plate and the insulating end cover. The ceramic capacitor enables the internal polar plate and the external polar plate to form a large corresponding area by arranging cylinder shaped internal polar plate and external polar plate, and facilitates increase of capacitance value. The ceramic dielectric takes BaTiO3, CeC13, SrTiO3, and CaCO3 as dielectric materials. The capacitor capacity is effectively improved, and the capacitor volume can be reduced. The usage is convenient, the withstand voltage and the dielectric constant can be effectively improved, and the dielectric loss is reduced.

Description

technical field [0001] The invention relates to a ceramic capacitor, more specifically, to a ceramic capacitor which adopts two cylindrical inner and outer pole plates to form two pole plates of the capacitor. Background technique [0002] A capacitor is composed of a layer of insulating dielectric sandwiched between two metal electrodes. When a voltage is applied between two metal electrodes, charges are stored on the electrodes, so capacitors are energy storage elements. Most of the current capacitor dielectrics are ceramics such as zinc oxide, mica, glass, plastic, and metal oxides. The dielectric withstand voltage of this kind of capacitor is not high, and the loss is large, which affects the safety of use. Contents of the invention [0003] In order to overcome the disadvantages of the above technical problems, the present invention provides a ceramic capacitor. [0004] The ceramic capacitor of the present invention comprises an outer pole plate made of a metal co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/12H01G4/28H01G13/00
CPCH01G4/12H01G4/1218H01G4/28H01G13/00
Inventor 潘为刚
Owner SHANDONG JIAOTONG UNIV
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