Invention Grant
- Patent Title: Thermal management assemblies for electronic assemblies circumferentially mounted around a motor using a flexible substrate
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Application No.: US16719264Application Date: 2019-12-18
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Publication No.: US11545874B2Publication Date: 2023-01-03
- Inventor: Shailesh N. Joshi , Shohei Suenaga
- Applicant: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, Inc.
- Applicant Address: US TX Plano
- Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, Inc.
- Current Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, Inc.
- Current Assignee Address: US TX Plano
- Agency: Dinsmore & Shohl LLP
- Main IPC: H02K9/00
- IPC: H02K9/00 ; H01L23/373 ; H05K1/11 ; H05K7/20 ; H01L23/367

Abstract:
An electronic assembly includes a flexible printed circuit board (PCB) circumferentially disposed around a motor and a thermal management assembly (TMA) thermally connected to the flexible PCB. One or more switching semiconductor devices are disposed on a first surface of the flexible PCB. The TMA includes a cooling jacket, at least one jacket manifold formed through the cooling jacket and a thermal compensation base layer thermally coupled to the cooling jacket. The cooling jacket is mounted around a circumference of the motor and has a mounting surface concentric with the circumference of the motor. The mounting surface is coupled to the first surface of the flexible PCB. The at least one jacket manifold has a fluid inlet and a fluid outlet defining a fluid flow area therebetween. The thermal compensation base layer is thermally coupled to the cooling jacket and the one or more switching semiconductor devices.
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