Drive unit for an electric vehicle, pulse inverter module, system and vehicle

Patent metadata

Field	Value
Publication number	US-12257908-B2
Application number	US-202217874339-A
Country	US
Kind code	B2
Filing date	Jul 27, 2022
Priority date	Jul 29, 2021
Publication date	Mar 25, 2025
Grant date	Mar 25, 2025

Abstract

A drive unit for an electric vehicle, including an electric machine, a gear mechanism, a housing, wherein the electric machine and the gear mechanism are arranged in an interior of the housing, and a receiving apparatus for a pulse inverter module, wherein the housing has an opening and the receiving apparatus is arranged in the interior of the housing directly behind the opening.

First claim

The invention claimed is:

1. A drive unit for an electric vehicle, comprising:
an electric machine;
a gear mechanism;
a housing, wherein the electric machine and the gear mechanism are arranged in an interior of the housing; and
a receiving apparatus for a pulse inverter module, wherein the housing has an opening and the receiving apparatus is arranged in the interior of the housing directly behind the opening.

2. The drive unit as claimed in claim 1 , wherein the housing has a cover for closing the opening, wherein the cover is configured to be removable or to be folded out.

3. The drive unit as claimed in claim 1 , wherein the receiving apparatus is arranged on the electric machine and is screwed to the electric machine.

4. The drive unit as claimed in claim 1 , wherein the receiving apparatus has a first contact element for electrical connection to any one of a DC voltage source or a second contact element for electrical connection to the electric machine.

5. A pulse inverter module for the drive unit as claimed in claim 1 , wherein the pulse inverter module is configured to be inserted into the receiving apparatus through the opening of the housing.

6. The pulse inverter module as claimed in claim 5 , comprising:
a plurality of module components; and
a module base body comprising a plurality of receiving locations,
wherein the module components are arranged at the plurality of receiving locations, and
wherein the plurality of module components comprise any one of a power module or a microcontroller or a link capacitor.

7. The pulse inverter module as claimed in claim 6 , wherein the plurality of module components are arranged at the receiving locations in a releasable manner.

8. The pulse inverter module as claimed in claim 6 , wherein the module base body has a guide for a coolant.

9. The pulse inverter module as claimed in claim 6 , wherein the module base body is formed from plastic.

10. The pulse inverter module as claimed in claim 6 , wherein the module base body is formed at least partly from metal.

11. The pulse inverter module as claimed in claim 6 , wherein the pulse inverter module has a busbar system arranged on the module base body, the busbar system being configured to electrically interconnect the plurality of module components.

12. The pulse inverter module as claimed in claim 5 , wherein at least one receiving location is arranged on any one of an external face of the module base body or at least one further receiving location is arranged within the module base body.

13. The pulse inverter module as claimed in claim 5 , wherein the pulse inverter module has a third and fourth contact element which are configured to make electrical contact with the first and second contact element of the drive unit.

14. A system comprising:
a drive unit comprising:
an electric machine;
a gear mechanism;
a housing, wherein the electric machine and the gear mechanism are arranged in an interior of the housing;
a receiving apparatus for a pulse inverter module, wherein the housing has an opening and the receiving apparatus is arranged in the interior of the housing directly behind the opening; and
a pulse inverter module for the drive unit, wherein the pulse inverter module is configured to be inserted into the receiving apparatus through the opening of the housing.

15. An electric vehicle, comprising the system as claimed in claim 14 .

Assignees

• Porsche Ag

Inventors

• Velic Timijan
• Fuchs Patrick
• Barkow Maximilian

Classifications

• H05K7/20927

  Liquid coolant without phase change · CPC title

• H02P27/08

  with pulse width modulation · CPC title

• H02K7/116

  with gears · CPC title

• B60L2210/40

  DC to AC converters · CPC title

• H02M7/003 Primary

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