Climate control system and motor actuator therefor
US6885164B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 13, 2004 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Sep 13, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A motor actuator of a climate control system includes an specialized electric motor with a motor housing enclosing an encoder ring on a motor shaft having a plurality of opposite encoder-segment sets with encoder brushes on the housing wiping the encoder ring and thereby forming an encoder circuit through opposite segments of the encoder-segment sets. The electric motor further includes power and encoder terminals positioned externally of the motor housing with at least one power terminal being electrically coupled to one of the power brushes and at least one encoder terminal being electrically coupled to one of the encoder brushes. A control head of the system includes a continuity pulse counter coupled to the at least one encoder terminal for creating pulses representative of impedance in the encoder circuit and, therefore, movement of the motor shaft and a damper linked thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.