Non-brush type direct current motor for electric bicycle

Details Non-brush type direct current motor for electric bicycle Non-brush type direct current motor for electric bicycle

1999-04-07

2000-07-25

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 66, H02K 700

Patent

active

060939850

ABSTRACT:
A non-brush type low cost direct current motor for all electric bicycle, the motor is comprised of a housing and a lateral lid which form the internal receiving space for itself. A mandrel extends into two central holes respectively of the housing and the lateral lid, both ends of the mandrel are exposed for mounting two front fork tips of the bicycle. A sheet silicon steel core having a coil to be electrically activated is slipped over the mandrel. An annular inner surface is provided on the housing and allows mounting of a metal collar which can be adhered on the inner surface. Multiple magnets are arranged one by one to form an annular magnet layer. The external periphery of the sheet silicon steel core forms a gap with the annular magnet layer. When the coil is electrically activated, it automatically drives the bicycle. Thereby, a direct current motor of light weight and with low fault, low rubbing damage and low noise, and without gears and brush for a rechargeable low cost electric bicycle is provided.

REFERENCES:
patent: 4677328 (1987-06-01), Kumakura
patent: 4860176 (1989-08-01), Bauwens et al.
patent: 5450915 (1995-09-01), Li
patent: 5497040 (1996-03-01), Sato
patent: 5581136 (1996-12-01), Li
patent: 5671821 (1997-09-01), McGreen
patent: 5804904 (1998-09-01), Park et al.
patent: 5828145 (1998-10-01), Nakamura

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