Device for control of an electric compressor for an air-conditioning circuit
US6411059B1 · kind B1 · utility
53Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2001 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Mar 6, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/88
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A device for control of an electric motor-driven compressor of an air-conditioning circuit has a control circuit and an inverter for applying a variable frequency to the electric motor for motor speed control. The control circuit includes a potentiometer and a controlled switch and enables a normal-operation mode under the control of the potentiometer as well as a degraded-operation mode in which the speed of the electric motor is a minimum, and a safety mode in which the operation of the electric motor is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.