Back to results
US 5,632,157 AGranted
Electric automobile
AssigneeSeiko Epson Corporation
InventorsHirokazu Sekino, Issei Yamakoshi
Life of this patent
Estimating the term…
Abstract
An electric automobile comprises a wheel driving motor (8, 10, 15, 21, 50, 80) and a refrigerating system for air-conditioning the interior of an electric automobile. The refrigerating system has a compressor (7, 22, 57), an outdoor heat exchanger (6, 25, 53), an expansion valve (3a, 3b, 13, 27, 28, 55, 58), and an indoor heat exchanger (4, 29, 54) connected in series by a refrigerant pipe. The wheel driving motor (8, 10, 15, 21, 50, 80) is provided within the refrigerating system, and the wheel driving motor is cooled directly by the refrigerating system.
Claims6
An electric automobile comprising:
- a wheel drive motor for respectively driving at least each of a plurality of driving wheels of the electric automobile;
- and
- a refrigerating system in which a refrigerant flows, and which comprises a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger connected one after another by refrigerant pipes,
- said wheel driving motor being provided within the refrigerating system, whereby the wheel driving motor is cooled directly by the refrigerant,
- said wheel driving motor comprising:
- a stator supported by a flange, said stator having an outer surface facing said flange in spaced relation,
- a rotor provided inside the stator and having a driving shaft, and
- a coiled thin pipe disposed on the outer surface of the stator, in which the refrigerant for a refrigerating system flows,
- the coiled thin pipe being provided within a space between the flange and the stator.
6 more elements
Dependencies are inferred from the claim text.