Infinitum Electric, Inc.

Other

University System of Maryland

Active Power, Inc.

Younicos, Inc.

Acme Product Development, Ltd.

Little Engine Labs, LLC

Randal A Lee

Paulo Guedes-Pinto

Rich Lee

John Mitchell Wilson

Shriram Pushparaj Patil

Zachary Thomas Radkey-Pechacek

Bahareh Anvari

James A Andrews

Ben Schuler

George William Vogel, Jr

Luke Robert Wilkin

David A Badger

Howard H Roberts, Jr

David E Perkins

Richard Jennings

Eric Schrock

Raphael Kahat Mandel

Dave J Wehrlen

Melaku Mihret

James R Pitt

Amir Shooshtari

Tom Kronke

Brian Taraba

Sriram Sarma Emani

Chris D Eckhoff P E

Stephen Frank

Robert L Fuller

An axial field rotary energy device can include a housing and a rotor rotatably coupled to the housing. The rotor can have an axis of rotation and magnets. A stator assembly can be coupled to the housing coaxial with and adjacent to the rotor. The stator assembly can include a printed circuit board (PCB) having electrically conductive coils and an internal air duct for cooling the stator assembly.

System, method and apparatus for cooling PCB stator

An axial field rotary energy device or system includes an axis, a PCB stator and rotors having respective permanent magnets. The rotors rotate about the axis relative to the PCB stator. A variable frequency drive (VFD) having VFD components are coupled to the axial field rotary energy device. An enclosure contains the axial field rotary energy device and the VFD, such that the axial field rotary device and the VFD are integrated together within the enclosure. In addition, a cooling system is integrated with the enclosure to cool the axial field rotary energy device and the VFD.

Axial field rotary energy device having PCB stator and variable frequency drive

A device has a housing and rotors rotatably coupled to the housing. Each rotor has a magnet on at least one side of the rotor. Printed circuit board (PCB) stators are located axially between the rotors and coupled to the housing. The PCB stators have layers, and each layer has coils. The number of rotors disks is equal to the number of stators plus one. The stators are interleaved with the rotors. A shaft is coupled to the rotors and the housing. The shaft has a hollow section coupled to a source of a liquid coolant through a rotary connector and to radial channels in the shaft that dispense a liquid coolant between the rotors and PCB stators. The shaft has flanges with different diameters configured to receive the rotors disks with respective matching bore diameters. In addition, the housing has a sump to collect the liquid coolant.

System, method and apparatus for direct liquid-cooled axial flux electric machine with multiple PCB stators

A system has an axial field rotary energy device with a housing, an axis and a rotor with a shaft, bearings, rotor disks and permanent magnets. A printed circuit board (PCB) stator is between the rotor disks to define an air gap on each side thereof. A variable frequency drive (VFD) assembly has a VFD housing and first pads coupled to inductors to facilitate heat removal from the inductors. A concave cradle is coupled to a ferromagnetic core and has a same contour as an outer surface of the ferromagnetic core. A second pad is coupled to a rectifier module. A third pad is coupled to switching devices and has pins to align the switching devices with the third pad. Standoffs are coupled to the VFD housing to support a first printed circuit board assembly (PCBA). A second PCBA is mounted to a shield plate above the first PCBA.

Modular axial field rotary energy device with PCB stator and enhanced variable frequency drive system

An axial field rotary energy device can include a housing and a rotor coupled to the housing. The rotor can include an axis of rotation and a rotor disk having a magnet. The device can include a stator that is coaxial with the rotor. The stator can include a printed circuit board having conductive layers laminated together with layers of an insulating material. Each conductive layer has coils that can carry electrical current when connected to an external voltage source. The stator is mechanically coupled to the housing, so the stator reacts to torque produced by the device. A ferromagnetic yoke is coaxial with the rotor and stator. The ferromagnetic yoke can be mechanically and thermally coupled to the stator and the housing to provide a path for magnetic flux produced by the magnet and a path to conduct heat generated by the stator from the stator to the housing.

Printed circuit board stator axial field rotary energy device with ferromagnetic yoke

A device has a housing, stators and a rotor with an axis and rotor disks with magnets. Each stator has a printed circuit board with conductive layers laminated together with layers of an insulating material. Each conductive layer has coils that can carry electrical current when connected to an external voltage source. The stators are mechanically coupled to the housing, so the stators react to torque produced by the device. The housing has two end sections and mid-sections where the end sections are mechanically coupled a stator and a ferromagnetic yoke. The mid-sections are mechanically coupled to one or two stators and ferromagnetic yokes. The ferromagnetic yokes are coupled to the stators and to the housing to provide a path for magnetic flux produced by the magnets and a path to conduct heat generated by the stators from the stators to the housing.

Printed circuit board stator axial field rotary energy device with rotor disks and ferromagnetic yoke

A system can include an axial field rotary energy device with an axis of rotation and a rotor coaxial with the axis and having a shaft, bearings, rotor disks that are coaxial and permanent magnets on each rotor disk. A printed circuit board (PCB) stator is located between the rotor disks to define an air gap on each side of the PCB stator. An enclosure has two enclosure sections with an inspection port. Bearing caps and bearings are mounted to the rotor. A variable frequency drive (VFD) assembly is coupled to the axial field rotary energy device. The VFD has a flexible conduit that extends between the VFD housing and the axial field rotary energy device. The flexible conduit can adapt to different sizes of axial field rotary energy devices.

Modular axial field rotary energy device with PCB stator and variable frequency drive system

An axial field rotary energy device has a PCB stator panel assembly between rotors with an axis of rotation. Each rotor has a magnet. The PCB stator panel assembly includes PCB panels. Each PCB panel can have layers, and each layer can have conductive coils. The PCB stator panel assembly can have a thermally conductive layer that extends from an inner diameter portion to an outer diameter portion thereof.

Axial field rotary energy device with PCB stator with thermal expansion capability

A device has a housing and a rotor with an axis and a rotor disk with a magnet. A cooling plate is coupled to the housing. The cooling plate includes a channel connected to an inlet and an outlet to convey a liquid coolant. A stator is coaxial with the rotor and includes a printed circuit board with conductive layers laminated together with layers of an insulating material. Each conductive layer has coils that can carry electrical current when connected to an external voltage source. The stator is mechanically coupled to the housing, so the stator reacts to torque produced by the device. A ferromagnetic yoke is mechanically and thermally coupled to the stator and to the cooling plate to provide a path for magnetic flux produced by the magnet and a path to conduct heat generated by the stator from the stator to the cooling plate.

Printed circuit board stator axial field rotary energy device with ferromagnetic yoke and cooling plate

An axial field rotary energy device has a PCB stator panel assembly between rotors with an axis of rotation. Each rotor has a magnet. The PCB stator panel assembly includes PCB panels. Each PCB panel can have layers, and each layer can have conductive coils. The PCB stator panel assembly can have a thermally conductive layer that extends from an inner diameter portion to an outer diameter portion thereof. Each PCB panel comprises discrete, PCB radial segments that are mechanically and electrically coupled together to form the respective PCB panels.

Axial field rotary energy device with segmented PCB stator having thermally conductive layer

An axial field rotary energy system has a housing and rotors with an axis of rotation that are rotatably coupled to the housing. Each rotor includes a magnet. A stator assembly is located axially between the rotors and coupled to the housing. The stator assembly has a printed circuit board (PCB). The PCB includes a plurality of layers, and each layer has coils. A shaft is coupled to the rotors and the housing. The shaft can dispense a liquid coolant between the rotors and stator assembly. The housing can include a sump to collect the liquid coolant.

System, method and apparatus for direct liquid-cooled axial flux electric machine with PCB stator

Growing community of inventors

Marble Falls, TX, United States of America

Randal A Lee