Capacitors for vehicle inverters

A capacitor and inverter technology, applied in the field of capacitor bus bars, can solve the problems of short circuit of IGBT power module, deterioration of electromagnetic wave performance of inverter system, damage of IGBT power module, etc.

Inactive Publication Date: 2011-12-14
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such increased terminal voltage can damage the IGBT power module, and the increased terminal voltage can degrade the electromagnetic wave performance of the inverter system
[0009] Moreover, since the bus bars of the positive and negative bus bar boards are exposed, it can be observed that the bus bars are oxidized in the air or mechanically worn so that the IGBT power module is short-circuited due to foreign objects

Method used

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  • Capacitors for vehicle inverters
  • Capacitors for vehicle inverters
  • Capacitors for vehicle inverters

Examples

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Embodiment Construction

[0048] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. As those skilled in the art would realize, the illustrated embodiments may be modified in various ways, all without departing from the spirit or scope of the present invention.

[0049] To clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are used throughout the specification to denote the same or similar elements.

[0050] In the drawings, the size and thickness of each element are approximately shown for better and easier explanation. The present invention is not limited to the drawings, and the thicknesses of layers, films, panels, regions, etc. are for reference only.

[0051] figure 1 is an assembly perspective view showing a capacitor of a vehicle inverter according to an exemplary embodiment of the present invention, figure 2...

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Abstract

The present invention provides a capacitor for an inverter of a vehicle comprising a case; a plurality of capacitor unit modules; positive and negative bus plates that are disposed in the case to be connected to the capacitor unit modules; and a power module corresponding to the unit modules, wherein that the unit modules are insulated from each other through an insulating material, and wherein the bus plates each comprise a bus bar that overlaps with the other bus bar and is electrically connected to the power module.

Description

technical field [0001] The invention relates to an inverter system for a hybrid electric vehicle or a fuel cell vehicle. The invention more particularly relates to bus bars for capacitors absorbing ripple currents. Background technique [0002] Recently, from the viewpoint of green energy, hybrid vehicles and fuel cell vehicles, which replace internal combustion engine vehicles, are gaining attention. [0003] As a power source, high-power electric motors are applied to hybrid vehicles and fuel cell vehicles, and inverter systems are applied to convert high-voltage DC power generated by batteries or fuel cells into 3-phase (U, V, and W phases) AC power, for charging / discharging. [0004] Inverter systems are equipped with capacitors to absorb ripple current by switching semiconductor switching elements such as insulated gate bipolar transistor (IGBT) power modules composed of power conversion switching elements. [0005] As mentioned above, the capacitor generally include...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/002H01G4/228H01G4/38H01G4/40H02M7/42
CPCY02T10/7022H02M7/003H01G11/78H01G11/10Y02E60/13H01G11/74H01G9/155Y02T10/70H05K7/14329H05K7/1432
Inventor 李正允宋泓锡张基永郑镇焕朱正弘
Owner HYUNDAI MOTOR CO LTD
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