Power electronics installation

Patent metadata

Field	Value
Publication number	US-10787091-B2
Application number	US-201816026605-A
Country	US
Kind code	B2
Filing date	Jul 3, 2018
Priority date	Jul 12, 2017
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

A power electronics installation having electrically active parts and a measuring sensor for measuring a water level within the installation. The power electronics installation is configured in such a way that the installation switches off automatically when the measuring sensor senses the water level.

First claim

What is claimed is:

1. A power electronics installation, comprising:
electrically active parts including a plurality of power electronics glide-in modules and a connecting box subjected to voltage during customary operation;
a coolant distributor fluidically connected to the plurality of power electronics glide-in modules and the connecting box via corresponding coolant connections;
a plurality of broken finger float switch sensors arranged underneath the plurality of power electronics glide-in modules and the connecting box and above a base of the power electronics installation at a substantially overlapping height, each of the broken finger float switch sensors including:
a respective first pole,
a respective second pole, and
a respective third pole for measuring a water level within the power electronics installation such that if an electrical voltage is applied to the respective first pole, a test current flows away either via the respective second pole or via the respective third pole depending on the water level to sense a hazardous water level that presents a risk of the plurality of power electronics glide-in modules and the connecting box being submerged; and

an additional changeover switch underneath the plurality of power electronics glide-in modules and the connecting box and above the base of the power electronics installation, wherein the additional changeover switch is an ultrasonic sensor;
wherein the power electronics installation is configured to switch off the plurality of power electronics glide-in modules and the connecting box and inform a back end automatically when the plurality of broken finger float switch sensors and the ultrasonic sensor sense the hazardous water level.

2. The power electronics installation as claimed in claim 1 , further comprising:
an assembly carrier that supports the electrically active parts, wherein the plurality of float sensors are attached to the assembly carrier.

3. The power electronics installation as claimed in claim 2 , wherein the assembly carrier is fabricated according to a standard for 19″ components found in EIA 310-D, IEC 60297 and DIN 41494 SC48D.

4. The power electronics installation as claimed in claim 1 , wherein the electrical voltage is dimensioned as a function of the plurality of float sensors in such a way that the test current has a strength of 20 mA.

Assignees

• Porsche Ag

Inventors

• Metzger Christian

Classifications

• H02J7/50

  acting upon multiple batteries simultaneously or sequentially · CPC title

• H02B1/015

  Boards, panels, desks; Parts thereof or accessories therefor · CPC title

• H02B1/52

  Mobile units, e.g. for work sites · CPC title

• H01H35/18

  Switches operated by change of liquid level or of liquid density, e.g. float switch (by magnet carried on a float H01H36/02) · CPC title

• B60L53/302 Primary

  Cooling of charging equipment · CPC title