Feng F Zhou

US Patent:

20220319956, Oct 6, 2022

Filed:

Mar 30, 2021

Appl. No.:

17/217348

Inventors:

- Plano TX, US
Ercan Mehmet Dede - Ann Arbor MI, US
Feng Zhou - Ann Arbor MI, US
Hiroshi Ukegawa - South Lyon MI, US
Danny Lohan - Northville MI, US

Assignee:

Toyota Motor Engineering & Manufacturing North America, Inc. - Plano TX

International Classification:

H01L 23/427
H01L 23/528
H01L 23/06
H01L 23/373
H01L 25/07

Abstract:

A power device assembly includes a heat-generating device, one or more porous bonding layers, and one or more cap layers. The one or more porous bonding layers are formed on a surface of the heat-generating device and define a plurality of embedded vapor channels. The one or more cap layers are engaged with a porous bonding layer of the one or more porous bonding layers opposite the heat-generating device. The one or more cap layer comprise a plurality of liquid feed channels for feeding cooling fluid to the heat-generating device via the porous bonding layer.

US Patent:

20230079046, Mar 16, 2023

Filed:

Sep 10, 2021

Appl. No.:

17/472110

Inventors:

- Plano TX, US
Yuqing Zhou - Ann Arbor MI, US
Ercan M. Dede - Ann Arbor MI, US
Feng Zhou - Ann Arbor MI, US
Hiroshi Ukegawa - South Lyon MI, US

Assignee:

Toyota Motor Engineering & Manufacturing North America, Inc - Plano TX

International Classification:

G06F 30/10
H01M 8/0258

Abstract:

One or more methods of designing an FC bipolar plate that enhance the operational performance of FC. A first image analysis is conducted of image data of a fluid flow field structure having one or more dehomogenized microstructures to identify channels having a fluid flow blockage at a channel wall dead-end. The channel wall dead-end of each identified channel is selectively removed in a manner that fluidically connects each identified channel to an adjacent channel. Then, a second image analysis of the image data is conducted in response to selectively removing the channel wall dead-ends to measure a length of each channel wall. Channels walls having a length greater than a threshold channel wall length value are selectively cut, thereby providing reduced fluid flow resistance throughout the FC.

US Patent:

20230082620, Mar 16, 2023

Filed:

Sep 15, 2021

Appl. No.:

17/475492

Inventors:

- Plano TX, US
Yuqing Zhou - Ann Arbor MI, US
Danny J. Lohan - Northville MI, US
Feng Zhou - Ann Arbor MI, US
Tomoki Tambo - Ann Arbor MI, US
Hiroshi Ukegawa - South Lyon MI, US

Assignee:

Toyota Motor Engineering & Manufacturing North America, Inc - Plano TX

International Classification:

H01M 8/026

Abstract:

A bipolar plate for a fuel cell, a fuel cell, and a method of designing a bipolar plate for a fuel cell having a hybrid flow field structure that includes a plurality of parallel feed flow channels fluidically connected to an inlet bipolar plate region, a plurality of parallel exit flow channels fluidically connected to an outlet bipolar plate region, and an interwoven pattern formed by a plurality of simplified periodic array flow field structure generated based on flow patterns generated by homogenized anisotropic porous media optimization. The flow field structure enhances fuel cell performance by facilitating lower pressure drop via minimized fluid flow resistance, and removal of accumulated water in the oxygen channel and the gas diffusion layer (GDL) under the ribs of the bipolar plate.

US Patent:

20230085399, Mar 16, 2023

Filed:

Sep 16, 2021

Appl. No.:

17/476764

Inventors:

- Plano TX, US
Feng Zhou - Ann Arbor MI, US
Ercan Mehmet Dede - Ann Arbor MI, US

International Classification:

H02J 7/00
H02J 50/00
H02J 50/10
H05K 7/20
B60L 53/12
B60L 53/302

Abstract:

A wireless charging pad includes a rectifier, a receiver coil, a heat spreader plate sandwich between the rectifier and the receiver coil, and a ferrite cold plate sandwiched between the receiver coil and the heat spreader plate. The ferrite cold plate has a fluid inlet, a fluid outlet, and a fluid chamber in fluid communication with the fluid inlet and the fluid outlet. The fluid chamber includes a primary cooling chamber and a secondary cooling chamber. Primary cooling fins extending from the heat spreader plate are disposed in the primary cooling chamber and secondary cooling fins extending from a base of the ferrite cooling plate are disposed in the secondary cooling chamber. The ferrite cooling plate cools the rectifier and inhibits or blocks electromagnetic leakage from the receiver coil from interfering with operation of rectifier.

US Patent:

20230067293, Mar 2, 2023

Filed:

Aug 25, 2021

Appl. No.:

17/411444

Inventors:

- Plano TX, US
Feng Zhou - Ann Arbor MI, US
Hiroshi Ukegawa - South Lyon MI, US

International Classification:

H02J 50/00
H05K 3/46
H05K 1/02

Abstract:

System, methods, and other embodiments described herein relate to using a printed conductor and a rectifier in the same enclosure for transferring power. In one embodiment, an apparatus includes a conductor, printed on a substrate housed in an enclosure, that generates alternating current caused by a magnetic field emitted by a transmitter, wherein the conductor is a trace spanning layers. The apparatus also includes a rectifier, on a device housed in the enclosure, that receives the alternating current through a terminal connected with the conductor and converts the alternating current to a direct current for powering a load, wherein an insulator between the conductor and the rectifier isolates the magnetic field.

US Patent:

20230058792, Feb 23, 2023

Filed:

Aug 20, 2021

Appl. No.:

17/407657

Inventors:

- Plano TX, US
Danny J. Lohan - Northville MI, US
Feng Zhou - Ann Arbor MI, US
Hiroshi Ukegawa - South Lyon MI, US
Tsuyoshi Nomura - Nagoya, JP
Ercan M. Dede - Ann Arbor MI, US

Assignee:

Toyota Motor Engineering & Manufacturing North America, Inc. - Plano TX

International Classification:

H01M 8/0258
G06F 17/18
G06F 30/18

Abstract:

One or more methods of designing microchannel fluid flow networks in a fuel cell bipolar plate includes executing one or more programs on one or more computing devices having one or more processors to optimize the spatially varying orientations of homogenized anisotropic porous media by iteratively executing a gradient-based algorithm that incorporates objective functions of reaction uniformity and flow resistance, and then generate, in response to the homogenized anisotropic porous media optimization, one or more microchannel fluid flow networks by dehomogenizing the optimized anisotropic porous media.

US Patent:

20230012318, Jan 12, 2023

Filed:

Jul 9, 2021

Appl. No.:

17/371220

Inventors:

- Plano TX, US
Feng Zhou - Ann Arbor MI, US

Assignee:

TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC. - Plano TX

International Classification:

H05K 3/12
H05K 1/02
H05K 7/20

Abstract:

A method of forming integrated power electronics packages by 3D-printing the PCB on and around power devices includes bonding a power device to a first surface of a cold plate and printing, using a 3D-printer, a circuit board on and around the power devices such that the circuit board includes one or more insulating portions and one or more conductive portions.

US Patent:

20210327788, Oct 21, 2021

Filed:

Apr 21, 2020

Appl. No.:

16/854797

Inventors:

- Plano TX, US
Feng Zhou - Ann Arbor MI, US

International Classification:

H01L 23/473
H01L 23/495
H01L 21/48
H01L 25/00
H05K 7/20
H01L 25/07

Abstract:

Methods, systems, and apparatuses for a power card for use in a vehicle. The power card includes an N lead frame, a P lead frame, and an O lead frame each having a body portion and a terminal portion, with the O lead frame located between the N lead frame and the P lead frame. The power card includes a first power device being located on a first side of the O lead frame and a second power device being located on a second side of the O lead frame, the body portion of the O lead frame having one or more channels configured to receive a cooling liquid for cooling the first power device and the second power device.