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Explosion-proof motor car capacitor core

A technology of capacitors and cores, applied in the field of motor vehicle capacitor cores, can solve problems such as explosion-prone

Inactive Publication Date: 2015-06-10
铜陵市永生机电制造有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large capacity of the product and the large amount of electricity stored in the motor car capacitor, once the core medium (that is, the organic film) is in a molten state, the power supply is not cut off in time, and it is prone to explosion.

Method used

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  • Explosion-proof motor car capacitor core

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Embodiment Construction

[0006] like figure 1 As shown, the present invention comprises: two layers of metallized polypropylene security film and an organic film positioned between the two layers of metallized polypropylene security film. An effective area is arranged on the metallized polypropylene safety film, and grid-shaped metallized pole plates are distributed in the effective area. On the side where the metallized plate is in contact with the gold-sprayed layer, there is an insulating gap along the length of the metallized film to separate the effective area of ​​the plate from the plate in contact with the gold-sprayed layer. connect.

[0007] The capacitor core with such a mechanism not only reduces the product cost, but also retains the advantages of small capacitance loss and reliable open circuit failure every time it is self-healed. This divides the entire metallized plate into many small square plate units with an area of ​​about 1 square centimeter (or smaller). Each small square pl...

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Abstract

The invention discloses an explosion-proof motor car capacitor core, which comprises two layers of metalized polypropylene safety films and an organic film located between the two layers of metalized polypropylene safety films. Each metalized polypropylene safety film is provided with an effective zone, and a metalized polar plate in a grid structure is distributed in the effective zone. An insulated gap exists at one side where the metalized polar plate and a metal spraying layer are contacted and along the length direction of the metalized film to separate the polar plate effective zone and the polar plate contacted with the metal spraying layer, and the two are mutually connected via a mini fuse.

Description

technical field [0001] The technology of the invention relates to a DC filter capacitor, in particular to a motor vehicle capacitor core. Background technique [0002] With the development of society and the acceleration of people's life rhythm, high-speed trains are gradually entering large and medium-sized cities, and people have higher requirements for the reliability of high-speed trains, which makes higher requirements for the stability and reliability of the supporting power supply of high-speed trains. As a supporting power supply for motor vehicles, DC filter capacitors have higher and higher requirements in terms of reliability and safety. At present, the way to improve the safety of motor vehicle capacitors is to increase the reliability of the dielectric (ie, organic film) in the capacitor core. However, due to the large capacity of the product and the large amount of electricity stored in the motor car capacitor, once the core medium (that is, the organic film) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/005H01G4/008H01G4/14
Inventor 朱俊生
Owner 铜陵市永生机电制造有限责任公司