Electronic expansion valve (EEV) controller
US11300342B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 25, 2020 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Oct 3, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic expansion valve (EEV) controller allows a user to drive the stepper motor of EEVs. Thus, the EEVs toggle between an open position or a closed position. The EEV controller includes a housing, a portable power supply, a motor driver printed circuit board (PCB), a power switch, a directional switch, and a motor connector. The housing is used to protect and hold in place the motor driver PCB, the portable power supply, the power switch, the directional switch, and the motor connector. The portable power supply is used to provide electrical energy to the motor driver PCB and to the stepper motor of EEVs through the motor connector. The power switch allows a user to manually turn on or off the EEV controller and the stepper motor. The directional switch is used to toggle the stepper motor between a clockwise rotation or a counter-clockwise rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.