Systems and methods for cooling electric drives
US9545037B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2015 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Aug 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/206
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for cooling a drive for downhole electric equipment such as an ESP, wherein the drive's electrical components are contained in one or more sealed enclosures to protect them from contaminants in external cooling air. In one embodiment, the drive has two sealed compartments that contain electrical components. Air internal to these compartments is circulated through air-to-air heat exchangers that are positioned in an adjacent duct. Alternating horizontal and vertical passageways through the heat exchangers are formed by flat plates that are offset from each other and connected alternately at their top/bottom and side edges. Air external to the sealed compartments is circulated through the duct to cool the heat exchangers. The amount of air circulated through each heat exchanger may be controlled by valves that regulate airflow through one or more outlets from the duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.