Juventino RosasLos Angeles, CA

5670860, Sep 23, 1997

Jun 6, 1995

8/467423

Clint Conrady - Redondo Beach CA
George R. Woody - Redondo Beach CA
Juventino Rosas - Los Angeles CA
Victor O. Asbury - Costa Mesa CA
Sergio Ramos - Wilmington CA
Eddie Yeow - San Gabriel CA

Hughes Electronics - Los Angeles CA

H02J 700
H01B 734
H01B 906

320 2

A charging system employing a liquid-cooled transmission cable for transferring power. The transmission cable has a central tube with an extruded member disposed therewithin for carrying coolant. A plurality of layers of coaxial tubular wire braid are disposed around the central tube that carry charging current and that are separated by a layers of dielectric material. An outer layer of wire braid is disposed around an outermost layer of dielectric material that is used for grounding and/or shielding. An outer jacket is disposed around the outer layer of wire braid for encasing the transmission cable. The extruded member may comprise a thermoplastic rubber extrusion, for example. The coolant path through the transmission cable is internally supported by means of the extruded member to assure uniform flexibility, maintain tangential magnetic flux, and eliminate kinking and collapse of the flow path. The transmission cable is designed for charging propulsion batteries of an electric vehicle at extremely high charge rates. The charging system includes an external power source and off-vehicle inverter for providing charging current to the propulsion batteries by way of a charge port and a rectification/filter circuit in the electric vehicle.

5684380, Nov 4, 1997

Jul 26, 1996

8/686891

George R. Woody - Redondo Beach CA
Sergio Ramos - Harbor City CA
Juventino Rosas - Los Angeles CA

Delco Electronics Corp. - Kokomo IN

H01M 1046

320 2

An oil cooled inductive coupler for use with an inductive charging system that charges propulsion batteries of an electric vehicle. The coupler is connected to a power source by way of a coaxial cable that has power conductors for coupling power to the coupler, and cooling channels for coupling high dielectric strength cooling fluid to and from the coupler. The coupler has a housing with a flood box formed therein having an open interior that forms a conductor termination area. The cooling channels are coupled to the flood box, and the power conductors are terminated in the termination area and are exposed to the cooling fluid that is pumped therethrough to cool them. A heat exchanger having a fluid flow path therethrough is coupled to the flood box and permits the cooling fluid to circulate therethrough. A primary winding is secured or bonded to the heat exchanger, a magnetic puck is disposed in an opening in the heat exchanger, and upper and lower primary winding covers enclose the heat exchanger. The cooling fluid is pumped through the coaxial cable, the flood box and the heat exchanger to cool the primary winding, the magnetic puck, and the power conductors, to permit high power levels to be transferred between the power source and the propulsion batteries of the electric vehicle.