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Preparation method of low-noise thin film capacitor

A thin-film capacitor, low-noise technology, applied in thin-film/thick-film capacitors, capacitor manufacturing, capacitors, etc., can solve the problems of affecting the noise decibel of LED dimming lamps, difficult to meet the noise requirements of smart home lighting lamps, etc., to achieve stable shape , The effect of rapid voltage change and obvious amplitude

Active Publication Date: 2018-11-16
SICHUAN ZHONGXING ELECTRONICS
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing smart homes have a noise requirement of ≤30dB for lighting fixtures. Now this requirement can no longer meet the market demand. Therefore, the LED dimming lamp proposes an ultra-low noise requirement of 25dB, and the PFC, DC- LINK's film capacitors directly affect the noise decibels of LED dimming lights
However, the noise of capacitors in the existing LED dimming lamp circuit often exceeds 25dB and is close to 30dB, which is difficult to meet the noise requirements of smart home lighting fixtures

Method used

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  • Preparation method of low-noise thin film capacitor

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0023] Such as figure 1 As shown, the invention provides a kind of preparation method of low-noise film capacitor, comprises the following steps:

[0024] S0), the metallized film is subjected to double-sided plasma treatment, on the one hand, the bumps on both sides of the metallized film are knocked off, and on the other hand, both sides of the metallized film will not be too smooth, which is conducive to low noise The two films in the film capacitor are fully bonded to reduce the noise decibel of the low-noise film capacitor; the bonding film of the metallized film is polyester film;

[0025] S1), the first metallized film 131b and the second metallized film 131c are carried out as follows Figure 4 As shown in the dislocation stacking, the first metallized film 131b and...

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Abstract

The invention belongs to the technical field of metallized capacitor production, in particular to a preparation method of a low-noise thin film capacitor. The preparation method of the low-noise thinfilm capacitor of the invention maintains the original electrical characteristics, and the tested decibel of the noise is less than 25dB, which meets the requirement of the intelligent home for the noise decibel.

Description

technical field [0001] The invention belongs to the technical field of metallized capacitor production, and in particular relates to a method for preparing a low-noise film capacitor. Background technique [0002] With the continuous development of smart home lighting, the market has higher and higher requirements for the quietness of dimming lights. Especially when dimming lights are used at night, the noise problem is more likely to be prominent. Therefore, a proposal for LED dimming lights for smart homes requirements for ultra-low noise. Existing smart homes have a noise requirement of ≤30dB for lighting fixtures. Now this requirement can no longer meet the market demand. Therefore, the LED dimming lamp proposes an ultra-low noise requirement of 25dB, and the PFC, DC- LINK's film capacitors directly affect the noise decibels of LED dimming lights. However, the noise of capacitors in existing LED dimming lamp circuits often exceeds 25dB and is close to 30dB, which is di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G13/00H01G13/04H01G4/32H01G4/33
CPCH01G4/32H01G4/33H01G13/003H01G13/006H01G13/04
Inventor 伍骞
Owner SICHUAN ZHONGXING ELECTRONICS
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