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Thin film capacitor for high-cooling electric vehicle

A technology for thin-film capacitors and electric vehicles, applied in thin-film/thick-film capacitors, capacitors, multilayer capacitors, etc., can solve the problems of large size, high cost, poor heat dissipation effect, etc., and achieve small size, low cost, and improved heat dissipation power. Effect

Pending Publication Date: 2018-11-02
WUXI CHENRUI NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of high cost, large volume and poor heat dissipation effect, the present invention provides a film capacitor for electric vehicles with high heat dissipation, which has compact structure, small volume, low cost and good heat dissipation effect

Method used

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  • Thin film capacitor for high-cooling electric vehicle
  • Thin film capacitor for high-cooling electric vehicle
  • Thin film capacitor for high-cooling electric vehicle

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Embodiment Construction

[0023] See Figure 1 to Figure 8 As shown, a film capacitor for electric vehicles with high heat dissipation includes a housing 1 and lead-out electrodes. A capacitor core 3 and a potting material 5 are arranged in the housing 1. The housing 1 is equipped with a cooling metal plate 12 at the bottom. The plastic shell 11 and the cooling metal plate 12 are used to connect with the cooling device inside the electric vehicle. It can be a cooling water pipe or an air-cooled radiator to effectively reduce the operating temperature of the capacitor. The capacitor core 3 is connected to the copper busbar 2 through the copper plate 4. The copper busbar 2 and the lead-out electrodes are formed as an integrated structure, the copper busbar 2 is arranged close to the cooling metal plate 12 , and insulating paper is arranged between the copper busbar 2 and the cooling metal plate 12 .

[0024] The potting material is epoxy resin with high thermal conductivity and low linear expansion coeff...

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Abstract

The invention relates to the technical field of a thin film capacitor, in particular to a thin film capacitor for a high-cooling electric vehicle. The thin film capacitor is compact in structure, small in size, low in cost and good in cooling effect and comprises a shell and a leading-out electrode, wherein a capacitor core and a potting material are arranged in the shell, the thin film capacitoris characterized in that the shell is a plastic shell, a cooling metal plate is arranged at the bottom of the plastic shell and is used for connecting a cooling device in the electric vehicle, the capacitor core is connected with a copper busbar via a copper plate, the copper busbar and the leading-out electrode are formed in an integrated structure, the copper busbar is arranged near to the cooling metal plate, and insulation paper is arranged between the copper busbar and the cooling metal plate.

Description

technical field [0001] The invention relates to the technical field of film capacitors, in particular to a film capacitor for electric vehicles with high heat dissipation. Background technique [0002] As countries around the world begin to pay attention to the protection of the ecological environment, the unique advantages of electric vehicles in terms of energy selection and environmental protection have become the focus of countries investing a lot of energy, material resources and financial resources in research and development. [0003] The motor controller is the core component of the new energy vehicle, and the film capacitor is an important component of the motor controller next to the power module, and plays a role of DC support in the motor controller circuit. One is to absorb the high-amplitude pulsating current requested by the inverter from the "DC-Link", preventing it from generating a high-amplitude pulsating voltage on the impedance of the "DC-Link", so that ...

Claims

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Application Information

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IPC IPC(8): H01G4/33H01G4/38H01G4/224H01G4/228H01G2/08
CPCH01G2/08H01G4/224H01G4/228H01G4/33H01G4/385
Inventor 陈栋俞广铨
Owner WUXI CHENRUI NEW ENERGY TECH
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