Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1996-01-16
1998-10-27
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310263, 362192, H02K 700, H02K 122, B60Q 100
Patent
active
058281452
ABSTRACT:
A bicycle generator-containing hub having a hub spindle (6), a hub body (2) rotatably mounted on the hub spindle (6), and a generator (10) disposed inside the hub body (2).
The generator includes a cylindrical magnet assembly (12) having north poles and south poles arranged alternately along an inner peripheral wall of the hub body (2), and a plurality of generating coil units (11a, 11b, 11c) arranged inside the cylindrical magnet assembly (12) and axially of the hub spindle.
Each of the generating coil units includes a first core element (50a, 50b, 50c) and a second core element (60a, 60b, 60c) opposed to each other axially of the hub spindle, and a generating coil (14) disposed between the first and second core elements to be coaxial with the hub spindle. The first core element has magnetic poles (51a, 51b, 51c) arranged at intervals in peripheral positions thereof and extending toward the second core element. The second core element has magnetic poles (61a, 61b, 61c) arranged at intervals in peripheral positions thereof and extending toward the first core element.
An adjacent pair of the generating coil units are arranged to have the second core element (60a) of one generating coil unit (11a) in contact with the first core element (50b) of the other (11b), such that the magnetic poles (51a) of the first core element (50a) of the one generating coil unit (11a) and the magnetic poles (61b) of the second core element (60b) of the other generating coil unit (11b) are in corresponding positions circumferentially of the hub spindle.
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Deland James A.
Shimano Inc.
Stephan Steven L.
Wallace, Jr. Michael J.
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