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US 5,488,837 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.
Claims5
An electric automobile comprising:
- a wheel driving motor for driving respectively 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,
- the wheel driving motor being provided within the refrigerating system, whereby the wheel driving motor is cooled directly by the refrigerant, wherein
- the wheel driving motor comprises a stator having a stationary shaft and a rotor provided outside the stator and having a wheel for holding a tire on the periphery thereof,
- the stator having a refrigerant passage formed therewithin, to which an inlet pipe for supplying the refrigerant and an outlet pipe for discharging the refrigerant are connected.
3 more elements
Dependencies are inferred from the claim text.