Electric power generator and system

• US 4,475,075 A
• Filed: 10/14/1981
• Issued: 10/02/1984
• Est. Priority Date: 10/14/1981
• Status: Expired due to Fees

• Current Assignee: Robert B. Munn
• Original Assignee: Robert B. Munn
• Inventors: Munn, Robert B.
• Primary Examiner(s): Hickey, R. J.
• Application Number:
  US06/311,392
• Time in Patent Office: 1,084 Days
• Field of Search: 322/89, 322/90, 322/1, 322/100, 320/18, 320/61, 310/67 R, 310/67 A, 310/156, 310/75, 310/77, 188/156-159, 188/163, 188/71.1, 188/71.3, 188/218 XL, 180/65.5, 180/65.3
• US Class Current: 322/1
• CPC Class Codes: B60L 53/00 Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
• CPC Class Codes: B60L 53/57 Charging stations without connection to power networks
• CPC Class Codes: H02J 7/1423 with multiple batteries
• CPC Class Codes: H02K 21/22 with magnets rotating around the armatures, e.g. flywheel magnetos
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y10S 174/20 Stator
• CPC Class Codes: Y10S 174/21 Rotor

Abstract

A generator adapted to be driven by rotational forces applied to the wheel of an automotive vehicle or the like comprising a stator coupled to the vehicle frame and a rotor which includes wheel mounting structure so that the rotor is adapted to be effectively driveably coupled to the wheel. The rotor includes a cup-shaped body telescopically received over the stator coaxially with the axis of rotation, with a plurality of axially spaced circumferential arrays of magnets being mounted internally of the cup-shaped rotor body. A plurality of core assemblies are mounted on the stator in axially spaced positions corresponding to the circumferential magnet arrays. A disc brake flange projects from the rotor body and is adapted to cooperate with disc brake calipers carried by the vehicle frame for applying braking forces to the wheel.

In a charging system for the energy storage batteries of an electrically powered vehicle or the like, the batteries comprise individual low voltage batteries connected in series. Each battery of the series receives charging current through an individual associated rectifier bridge assembly from a corresponding stator core assembly of the generator structure.

Claims

1. An electric power generator for automotive vehicles and like applications comprising

a stator including a plurality of magnetic core means each having a circumferential array of radially outwardly directed poles, a hollow tubular body with said plurality of core means being mounted externally of said body in fixed axially spaced positions to a vehicle frame with magnetic insulation means being disposed between said axially spaced core means, and a stator coil on each of said radially outwardly directed poles,

a hollow cup-shaped rotor having a base adapted to be mounted for rotation relative to the vehicle frame and stator and an annular wall coaxially and telescopically received over said stator, and a plurality of circumferential permanent magnet arrays equal in number to said core means and mounted in axially spaced positions internally of said annular wall such that each said circumferential permanent magnet array is aligned radially with a corresponding said core means,

means including threaded studs on said base for removably mounting a vehicle wheel thereto, and

bearing means within said body for receiving a wheel drive shaft and means for coupling said wheel drive shaft to said rotor base.

2. The generator set forth in claim 1 wherein said rotor means further comprises a flange projecting from an external surface of said annular wall and adapted to cooperate with disc brake caliper means mounted to said vehicle frame for applying braking forces to a wheel mounted on said rotor.