SMD safety ceramic capacitor

A technology of ceramic capacitors and safety regulations, which is applied in the direction of laminated capacitors, fixed capacitor electrodes, fixed capacitor dielectrics, etc., can solve the problems of low breakdown electric field, affecting capacitor work, poor stability, etc., and achieve enhanced breakdown electric field, large current Card effect, simple structure effect

Active Publication Date: 2021-11-30
四川特锐祥科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional molding process of multilayer chip ceramic capacitors has the solvent in the internal electrode slurry, which has a corrosion and dissolution effect on the ceramic green sheet. Type ceramic capacitor product short circuit
[0004] At the same time, the ceramics used in the traditional process have low breakdown electric field, poor stability, and integrated structure. The overall internal heat energy is large, forming internal losses and affecting the overall capacitor work.
[0005] Publication No. CN107251177B discloses a laminated ceramic capacitor. Ceramic layers and internal electrodes are alternately laminated in multiple layers, and the laminate is crimped and cut to obtain an intermediate of the laminated ceramic capacitor. Sintering, the capacitor formed by the above structure can only form the electrode structure arranged in parallel, and the overall structure cannot form heat dissipation, and the ceramic structure used is made by traditional technology

Method used

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  • SMD safety ceramic capacitor
  • SMD safety ceramic capacitor
  • SMD safety ceramic capacitor

Examples

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Embodiment 1

[0032] A patch conventional ceramic capacitor of the present invention is achieved, a patch confidence ceramic capacitor: a terminal electrode 1, MLCC2, and an end electrode 1 symmetrical in the end of the MLCC2, MLC2 built-in multilayer electrode 22 The inner electrode 22 and the end electrode 1 are connected, and the middle portion of the LLCC is laterally disposed in the hollow structure, the inner electrode 22 is a corrugated structure, and the ceramic 20 of MLCC2 is prepared by a casting process;

[0033] The end electrode 1 is a multilayer structure, which is sequentially connected to the copper layer 13, the soft terminal layer 12, the nickel layer 11, the tin layer 10, the soft terminal layer 12, and the copper layer 13 are connected to nickel. The outer surface of the layer 11 is provided with irregular projections, the bump height is 0.2mm, and the tin layer 10 is bonded by irregular projections and nickel layer 11;

[0034] The inner electrode 22 is a copper foil, a cop...

Embodiment 2

[0043] A patch conventional ceramic capacitor of the present invention is achieved, a patch confidence ceramic capacitor: a terminal electrode 1, MLCC2, and an end electrode 1 symmetrical in the end of the MLCC2, MLC2 built-in multilayer electrode 22 The inner electrode 22 and the end electrode 1 are connected, and the middle portion of the LLCC is laterally disposed in the hollow structure, the inner electrode 22 is a corrugated structure, and the ceramic 20 of MLCC2 is prepared by a casting process;

[0044] The end electrode 1 is a multilayer structure, which is sequentially connected to the copper layer 13, the soft terminal layer 12, the nickel layer 11, the tin layer 10, the soft terminal layer 12, and the copper layer 13 are connected to nickel. The outer surface of the layer 11 is provided with irregular projections, the bump height is 0.5 mm, and the tin layer 10 is bonded by irregular projections and nickel layer 11;

[0045] The inner electrode 22 is a copper foil, a co...

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Abstract

The invention provides an SMD safety ceramic capacitor, which relates to a ceramic capacitor with a hollow middle part formed by performing ceramic modification preparation based on a KNN relaxation system, and belongs to the field of electrical elements.A ceramic capacitor in which corrugated inner electrodes performs high-voltage breakdown to improve the overall range and which conducts heat diffusion through a hollow in the middle is provided. The ceramic capacitor comprises terminal electrodes and an MLCC, the terminal electrodes are symmetrically arranged at the ends of the MLCC, multiple layers of inner electrodes are arranged in the MLCC, the inner electrodes are connected with the terminal electrodes, a hollow structure is transversely arranged in the middle of the LLCC, the inner electrodes are of a corrugated structure, the ceramic of the MLCC is prepared by adopting a tape casting process, and the excellent performance of combining a large electrocaloric effect and a wide room temperature refrigeration working temperature area is successfully obtained in a lead-free MLCC device by utilizing the synergistic effect of KNN relaxation phase change and a high electric field.

Description

Technical field [0001] The present invention provides a patch conventional ceramic capacitor relates to a ceramic capacitor for a central hollowed ceramic capacitor by a ceramic modification by a Knn relaxation system, which is a ceramic capacitor in a central hollow. Background technique [0002] Multi-layer ceramic capacitor MLCCITOR is laminated by a ceramic medium diaphragm of a printed electrode (internal electrode) in a misalignment, and the ceramic chip is formed by a disposable high temperature sintering, and then two ends of the chip. The upper metal layer (external electrode) thus forming a structure similar to a monolithic, so it is also called a monolithic capacitor. Multi-slice type ceramic capacitor MLCC except for the "compact communication" of the capacitor, it has a small size, large specific, long life, high reliability, suitable for surface mounting. With the development of society, multi-layer slice ceramic capacitors have been widely used in the fields of ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/30H01G4/12H01G4/005
CPCH01G4/30H01G4/12H01G4/005
Inventor 刘世军
Owner 四川特锐祥科技股份有限公司
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