Inverter assembly with integrated coolant coupling port

Patent metadata

Field	Value
Publication number	US-11682895-B2
Application number	US-202117448300-A
Country	US
Kind code	B2
Filing date	Sep 21, 2021
Priority date	Feb 22, 2019
Publication date	Jun 20, 2023
Grant date	Jun 20, 2023

Abstract

An inverter assembly includes an integrated coolant coupling port; a fluid connector having a chamfered lip and a fir tree circumferentially aligned with at least one O-ring on an outer body of the fluid connector; and a flexible hose configured to couple the integrated coolant coupling port to the fluid connector.

First claim

What is claimed is:

1. An inverter assembly, comprising:
an integrated coolant coupling port;
a fluid connector having a chamfered lip and a fir tree circumferentially aligned with at least one O-ring on an outer body of the fluid connector; and
a flexible hose configured to couple the integrated coolant coupling port to the fluid connector.

2. The inverter assembly of claim 1 , wherein power electronics of the inverter assembly are thermally coupled to a coolant channel.

3. The inverter assembly of claim 2 , wherein at least one of a coolant inlet or a coolant outlet of the coolant channel comprises the fluid connector.

4. The inverter assembly of claim 1 , wherein the fluid connector further comprises a fir tree hose coupling on an outer housing wall of the fluid connector; and
wherein the fir tree hose coupling is circumferentially aligned with at least one O-ring on an inner portion of the fluid connector.

5. The inverter assembly of claim 1 , wherein integrating the integrated coolant coupling port to the inverter assembly and connecting the integrated coolant coupling port to the fluid connector with the flexible hose enables an overall reduction in height of the inverter assembly.

6. The inverter assembly of claim 1 , wherein the fluid connector lacks a locking element.

7. The inverter assembly of claim 1 , wherein the fluid connector comprises at least one rib along an inner circumference of an end of the fluid connector.

8. The inverter assembly of claim 1 , wherein a main cover of the inverter assembly is coupled to an opposing back cover using a cure-in-place-gasket.

9. The inverter assembly of claim 8 , wherein the cure-in-place-gasket is dispensed on the main cover.

10. The inverter assembly of claim 8 , wherein at least one of the main cover and the opposing back cover comprises a ledge having a selected height such that the cure-in-place-gasket has a selected compression when the main cover is coupled to the opposing back cover.

11. The inverter assembly of claim 1 , further comprising, a coolant channel disposed between a coolant channel cover and a coolant channel separating body.

12. The inverter assembly of claim 11 , wherein the coolant channel separating body is friction-stir welded to each of a main cover of the inverter assembly and the coolant channel.

13. The inverter assembly of claim 11 , wherein a main cover of the inverter assembly is cast;
wherein the coolant channel separating body is forged; and
wherein the coolant channel cover is stamped.

14. The inverter assembly of claim 11 , wherein the coolant channel is disposed on a first side of the coolant channel separating body, and wherein a second coolant channel is disposed on a second side of the coolant channel separating body.

15. The inverter assembly of claim 1 , wherein a main cover of the inverter assembly defines a plurality of coupling threaded bores, and wherein an opposing back cover defines a corresponding plurality of coupling threaded bores.

16. The inverter assembly of claim 1 , wherein the fluid connector is configured to receive an end piece having a standard SAEJ2044 end form.

17. The inverter assembly of claim 1 , wherein the chamfered lip is sized to allow for mis-alignment.

18. The inverter assembly of claim 1 , wherein the fluid connector is a coolant connector.

19. The inverter assembly of claim 1 , wherein the flexible hose comprises a baffled hose.

20. The inverter assembly of claim 1 , wherein the flexible hose comprises a rubber hose.

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Dukaric Dennis
• Haylock Matt
• Griffiths Justin Keith

Classifications

• H05K7/2089

  for power electronics, e.g. for inverters for controlling motor · CPC title

• B60Y2200/92

  Hybrid vehicles · CPC title

• H02P29/68

  based on the temperature of a drive component or a semiconductor component · CPC title

• B60Y2200/91

  Electric vehicles · CPC title

• B60K6/22

  characterised by apparatus, components or means specially adapted for HEVs · CPC title