Electrified vehicle inductor cooling system

Patent metadata

Field	Value
Publication number	US-12363873-B2
Application number	US-202217900511-A
Country	US
Kind code	B2
Filing date	Aug 31, 2022
Priority date	Aug 31, 2022
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

An electrified vehicle includes an inductor having an associated arcuate deflector to redirect fluid toward inductor coils to facilitate heat transfer. The inductor may be disposed within a transmission proximate to at least one gear that distributes fluid during rotation to proximate components to provide splash lubrication. The arcuate deflector may redirect splashed fluid from between the inductor and the transmission housing toward the inductor coils. The deflector may be secured to the inductor via terminal connectors that electrically couple the inductor coils to a bus bar connected to a variable voltage converter.

First claim

What is claimed is:

1. An electrified vehicle having an electric machine powered by a battery to propel the electrified vehicle, comprising:
a transmission including at least one gear disposed within a housing and configured to rotate within the housing and splash fluid within the housing;
an inductor including a core having conductive windings wrapped around the conductive core, the inductor disposed within the housing proximate to the at least one gear; and
a baffle connected to the inductor and configured to redirect fluid splashed from the at least one gear toward the core and conductive windings.

2. The electrified vehicle of claim 1 wherein the baffle comprises an arcuate baffle configured to redirect fluid splashed between the housing and the inductor toward the core and conductive windings.

3. The electrified vehicle of claim 2 wherein the baffle is secured to terminals connecting the conductive windings of the inductor to a bus bar of the electrified vehicle.

4. The electrified vehicle of claim 3 wherein the inductor is electrically connected to a voltage converter connected to the battery and the electric machine.

5. The electrified vehicle of claim 1 wherein the inductor is positioned at least partially above the at least one gear and the baffle is positioned above the core and the conductive windings.

6. The electrified vehicle of claim 1 wherein the baffle comprises an arcuate baffle including an inlet in contact with the housing.

7. The electrified vehicle of claim 6 wherein the baffle comprises a cochlear baffle.

8. The electrified vehicle of claim 1 wherein the inductor comprises a body having first and second legs with a first section of the conductive windings wrapped around the first leg and a second section of the conductive windings wrapped around the second leg, and wherein the baffle extends over the first and second legs.

9. The electrified vehicle of claim 8 wherein the baffle comprises an arcuate baffle having an inlet in contact with the housing.

10. An electrified vehicle having an electric machine powered by a battery to propel the electrified vehicle, comprising:
a transmission housing;
at least one gear disposed within the transmission housing and configured to splash fluid within the transmission housing while the at least one gear is rotating; and
an inductor disposed within the transmission housing and including a coil wound around a core, the coil positioned with at least a portion of an exterior surface exposed to the fluid splashed during rotation of the at least one gear, the inductor including an arcuate fluid diverter positioned to redirect a portion of the fluid splashed during rotation of the at least one gear toward the coil.

11. The electrified vehicle of claim 10 wherein the arcuate fluid diverter includes an inlet redirecting fluid splashed between the inductor and the transmission housing.

12. The electrified vehicle of claim 11 wherein the inlet of the arcuate fluid diverter contacts the transmission housing.

13. The electrified vehicle of claim 10 wherein the coil comprises a first portion wound around a first leg and a second portion would around a second leg.

14. The electrified vehicle of claim 10 wherein the inductor is electrically connected to a variable voltage converter (VVC).

15. The electrified vehicle of claim 14 wherein the arcuate fluid diverter is secured to bus bar terminals electrically connecting the inductor to the VVC.

Assignees

• Ford Global Tech Llc

Inventors

• Casci John
• Ge Baoming
• Wang Fan
• Lee Moon Young

Classifications

• B60K2001/001

  one motor mounted on a propulsion axle for rotating right and left wheels of this axle · CPC title

• B60K1/00

  Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00) · CPC title

• F16H57/0423

  Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes · CPC title

• F16H57/0476

  Electric machines and gearing, i.e. joint lubrication or cooling or heating thereof · CPC title

• F16H57/0457

  Splash lubrication · CPC title