Half-bridge module of a traction inverter of power electronics of a vehicle

A technology of traction inverter and power electronics, which is applied in the direction of output power conversion device, conversion of AC power input to DC power output, vehicle components, etc., which can solve high overvoltage, high switching loss, and poor switchability of power semiconductors In order to achieve the effects of small switching loss, large electrical insulation distance, and good scalability

Pending Publication Date: 2021-06-22
ZF FIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to high overvoltages or higher switching losses when switching power semiconductors
Furthermore, longer signal terminals with high inductance lead to poor switchability or gate control of the power semiconductors

Method used

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  • Half-bridge module of a traction inverter of power electronics of a vehicle
  • Half-bridge module of a traction inverter of power electronics of a vehicle
  • Half-bridge module of a traction inverter of power electronics of a vehicle

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Embodiment Construction

[0025] Figure 1 to Figure 4 Various views of a half-bridge module 1 according to the invention of a traction inverter for power electronics of an electric vehicle or a hybrid vehicle are shown, wherein in figure 1 and Figure 4 shows a half-bridge module 1 and a cooling device 2 to which the half-bridge module 1 according to the invention can be connected.

[0026] The half-bridge module 1 has a base plate 3 and a semiconductor switching element 4 arranged on a first side 3 a of the base plate 3 . The semiconductor switching element 4 is constituted by a semiconductor component 5 provided as a transistor.

[0027] The substrate 3 is, for example, a DBC (Direct Bonded Copper, Direct Bonded Copper) substrate. The DBC substrate has, for example, a ceramic carrier plate 6 coated with copper layers 7 , 8 on both sides.

[0028] In the region of the first side 3 a of the substrate 3 , the copper layer 8 is structured into a plurality of segments 8 a separated from one another. ...

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PUM

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Abstract

The invention relates to a half bridge module 1 in a traction inverter for a power electronics unit in an electric or hybrid vehicle, comprising a substrate 3, semiconductor switching elements 4 on a first side 3a of the substrate 3, power connections 9, to which power lines that conduct electrical traction energy can be connected, signal connections 10, to which signal lines can be connected for switching the semiconductor switching elements 4, and a casting compound 12, which encompasses the substrate 3 and the semiconductor switching elements 4 on the first side 3a of the substrate 3, wherein the power connections 9 and the signal connections 10 can all be accessed from the first side 3a of the substrate 3, such that the power connections 9 and the signal connections 10 extend through the casting compound 12, seen from the first side 3a of the substrate 3, and are located within a base area spanning the substrate 3, seen from the direction they pass through the casting compound 12.

Description

technical field [0001] The invention relates to a half-bridge module of a traction inverter of a power electronics system of an electric vehicle or a hybrid vehicle. Background technique [0002] Electric vehicles as well as hybrid vehicles use electric motors as drive components. In order to supply the electric motors of such electric vehicles and hybrid vehicles with traction energy, electric vehicles and hybrid vehicles also comprise an electrical energy store known as a traction battery. Here, the traction battery is designed as a DC voltage battery, whereas the electric motor requires an AC voltage. Power electronics with a traction inverter are therefore connected between the traction battery and the electric motor of the electric or hybrid vehicle. Inverters are also known as converters. [0003] The traction inverter of the power electronics of an electric vehicle or a hybrid vehicle comprises semiconductor switching elements, typically composed of transistors. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L23/495H01L23/498
CPCH01L23/49548H01L23/49805H01L23/49838B60L15/007B60L2210/40H02M7/53871H02M1/327Y02T10/64Y02T10/72H01L2224/40225H02M7/53875H02M1/096H05K1/181H01L23/3735
Inventor M·雷曼M·科尔M·伯纳
Owner ZF FIEDRICHSHAFEN AG
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