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Multiple layered sheet structured ceramic capacitor in use for middle and high voltages

A ceramic capacitor and multilayer chip technology, which is applied in the direction of laminated capacitors, fixed capacitor electrodes, fixed capacitor dielectrics, etc., can solve the problems that cannot meet the requirements of the electronic technology field, and the anti-electric breakdown strength is not ideal, so as to reduce the breakdown Chance, improve the effect of high voltage breakdown strength

Inactive Publication Date: 2006-07-05
TSINGHUA TONGFANG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the distortion of the fringe electric field between the electrodes in each layer, the disadvantage of this type of ceramic capacitor in application is that its resistance to electrical breakdown is not ideal enough to meet the rapid development of electronic technology.

Method used

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  • Multiple layered sheet structured ceramic capacitor in use for middle and high voltages
  • Multiple layered sheet structured ceramic capacitor in use for middle and high voltages
  • Multiple layered sheet structured ceramic capacitor in use for middle and high voltages

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Embodiment Construction

[0014] see image 3 and Figure 4 , The ceramic capacitor of the present invention includes a plurality of dielectric layers made of ceramic materials with three types of internal electrodes and external electrodes at both ends. The shape of the internal electrodes-2 of one type of dielectric layer 1 is two to N rectangles, arranged at intervals, and the outer edges of the internal electrodes-2 arranged on both sides are respectively connected to the external electrodes at both ends, and the second type of dielectric layer The shape of the internal electrodes 2 4 of 3 is two to two times N minus two circular quadrilaterals, and the shape of the internal electrodes 3 6 of the three types of dielectric layers 5 is a rectangle from one to N minus one, arranged at intervals. Wherein N is a natural number greater than two, and the above three types of numbers are stacked in sequence. The corners of the first internal electrode 2 , the second internal electrode 4 and the third int...

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Abstract

Ceramic capacitor includes outer electrodes at two ends, three types of inner electrode composed of multiple plate dielectric layers. The inner electrode 1 in first type of dielectric layer is in structure: shape of inner electrode includes 2 to N pieces of rectangle arranged in distance; and external rims of inner electrodes arranged on two sides are connected to outer electrodes at two ends. The inner electrode 2 in second type of dielectric layer is in structure: shape of inner electrode includes 2 to (2N-2) pieces of loop type rectangle. The inner electrode 3 in third type of dielectric layer is in structure: shape of inner electrode includes 2 to (N-1) pieces of rectangle arranged in distance. N is natural number larger than 2. The said three kinds of dielectric layer are stacked in sequence. Comparing with prior art, the invention reduces probability of breakdown caused by distortion of edge electric field, and raises breakdown strength in high voltage.

Description

technical field [0001] The invention relates to the technical field of ceramic capacitors, in particular to a ceramic capacitor with a multilayer chip structure suitable for medium and high voltages with a rated voltage above 250V direct current. Background technique [0002] In the technical field of making high-voltage capacitors, two important technical indicators must be considered, one is the size of the capacitor, and the other is the electrical breakdown strength of the capacitor. Although it is now possible to produce capacitors with very small dimensions, it is very difficult to improve their high-voltage breakdown strength without increasing the overall size. The structure of the ceramic capacitor with medium and high voltage multilayer chip structure commonly used in the prior art is made of ceramic materials, consisting of several dielectric layers in the form of two types of internal electrodes and external electrodes at both ends. The internal electrodes of on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/12H01G4/30H01G4/005
Inventor 吉岸王晓慧陈仁政张力
Owner TSINGHUA TONGFANG CO LTD
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