Power electronics device

Patent metadata

Field	Value
Publication number	US-11417470-B2
Application number	US-201816762327-A
Country	US
Kind code	B2
Filing date	Nov 8, 2018
Priority date	Nov 10, 2017
Publication date	Aug 16, 2022
Grant date	Aug 16, 2022

Abstract

The invention relates to a DC link capacitor module (1, 1′), in which a coil (4, 5) is electrically conductively attached to two mutually opposite electrode plates (2a, 2b), wherein a plurality of first connecting means (6) are provided on each electrode plate (2a, 2b) to produce a detachable or non-detachable plug-in connection to second connecting means (9a, 9b), which correspond thereto and are attached to a bus bar (7a, 7b) of a power electronics module (8).

First claim

The invention claimed is:

1. A power electronic device comprising:
a DC link capacitor module having two mutually opposite electrode plates, a coil attached in an electrically conductive manner to the two mutually opposite electrode plates, and a plurality of first connecting means formed on the two mutually opposite electrode plates, and
a power electronics module having at least two bus bars, and a plurality of deformable second connecting means attached to each of the at least two bus bars to be detachably connected to the plurality of first connecting means corresponding thereto by a plug connection,
wherein after establishing the plug connection, the plurality of deformable second connecting means is deformed so that the plug connection cannot be detached without deforming or destroying the plurality of second connecting means.

2. The power electronic device according to claim 1 , wherein each of the plurality of first connecting means is formed in one piece with the electrode plates.

3. The power electronic device according to claim 1 , wherein each of the plurality of first connecting means is designed in the manner of a socket or tab suitable for receiving a contact pin.

4. The power electronic device according to claim 1 , wherein the coil includes a first coil and a second coil, and a first electrode plate pair formed from the electrode plates with the first coil received therebetween and a second electrode plate pair formed from two further mutually opposite electrode plates with the second coil received therebetween are provided in parallel arrangement.

5. The power electronic device according to claim 4 , wherein a first electrode plate of the first electrode plate pair is connected to a third electrode plate of the second electrode plate pair, and a second electrode plate of the first electrode plate pair is connected to a fourth electrode plate of the second electrode plate pair.

6. The power electronics device according to claim 1 , wherein the plurality of second connecting means is formed integrally with the bus bars.

7. The power electronics device according to claim 1 , wherein each of the plurality of second connecting means is designed in the manner of a contact pin extending from the bus bars, which are inserted into each of the plurality of first connecting means with frictional engagement.

8. The power electronics device according to claim 1 , wherein each of the bus bars has a connection element for connection to a supply line.

9. The power electronics device according to claim 1 , which is designed as a charging device for an electrical energy store, as an inverter or as a DC-DC converter.

10. The power electronics device according to claim 1 , further comprising a deformable cover element which encloses the coil in a gas-tight manner.

11. The power electronics device according to claim 10 , further comprising a sealing element sealing the cover element with respect to the bus bars.

Assignees

• Valeo Siemens Eautomotive Germany Gmbh

Inventors

• Smit Arnoud
• Zitzmann Daniel
• Hofmann Harald

Classifications

• H01G4/40

  Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations · CPC title

• H01G2/04 Primary

  specially adapted for mounting on a chassis · CPC title

• H01G4/005

  Electrodes · CPC title

• H02M7/003

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title

• H01G4/38 Primary

  Multiple capacitors, i.e. structural combinations of fixed capacitors · CPC title