Energy-saving electric drive for small vehicles

Details Energy-saving electric drive for small vehicles Energy-saving electric drive for small vehicles

1995-08-28

1998-08-18

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 75R, 310 75C, 310 77, 310 92, 310103, 180 655, 188171, H02K 7106, B60K 100, B60T 1304

Patent

active

057961921

ABSTRACT:
An electric drive for small vehicles, especially wheelchairs, includes a d.c. motor, which is arranged as a wheelhub motor in the running wheel of the small vehicle. Efficiency and manufacturing costs are improved, while ensuring simple assembly, wherein the possibility of automatically locking the running wheels is provided, along with a short and lightweight design. The d.c. motor is an external rotor motor, whose external rotor forms the wheelhub or the wheel rim of the running wheel. The stator of the d.c. motor is stationarily connected to the small vehicle via a brake housing (3). A central spring pressure brake is provided which can be released electromagnetically and manually and brakes the external rotor of the d.c. motor in the case of a power failure.

REFERENCES:
patent: 2467891 (1949-04-01), Hollander
patent: 3548965 (1970-12-01), Peirro
patent: 4049089 (1977-09-01), Rundle
patent: 4993532 (1991-02-01), Weiss et al.
patent: 5121018 (1992-06-01), Oldakowshi
patent: 5246082 (1993-09-01), Alber
patent: 5274290 (1993-12-01), Fischer
patent: 5465802 (1995-11-01), Yang

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