Invention Grant
- Patent Title: Cooling stator coils of an electric motor
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Application No.: US14597291Application Date: 2015-01-15
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Publication No.: US09780625B2Publication Date: 2017-10-03
- Inventor: Tyler Garrard , Christopher Meszaros , Will Robert Nielsen Hippen
- Applicant: BorgWarner Inc.
- Applicant Address: US MI Auburn Hills
- Assignee: BorgWarner Inc.
- Current Assignee: BorgWarner Inc.
- Current Assignee Address: US MI Auburn Hills
- Agency: Barnes & Thornburg LLP
- Main IPC: H02K9/19
- IPC: H02K9/19 ; H02K15/02

Abstract:
Performance of an electric motor can be improved if coolant is provided to the coils of the stator. An electric motor is disclosed that has a shaft onto which the rotor is secured. The motor has a stator that is mounted on bearings that are mounted on the shaft. The stator has a plurality of coils. A coolant guide is provided that fills voids between the groups of windings. The coolant guide has a plurality of fingers with the fingers arranged between adjacent pairs of coils. The coolant guide has internal passages to accept pressurized coolant and outlet holes to spray coolant onto the coils. In other embodiments, the fingers guide coolant to reach all coils under the force of gravity.
Public/Granted literature
- US20150207386A1 Cooling Stator Coils of an Electric Motor Public/Granted day:2015-07-23
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