Thermal runaway detection
US11686656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Feb 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K2201/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A closed-loop temperature controller employing at least two sensors: a control temperature sensor and a safety sensor at the heat-transfer element. The heat-generating element is separated from the controlled mass/volume by a transport delay so that the mass or volume that is being heated or cooled is located in a vessel which is located remotely from the heat-transfer unit. Thermally conducting fluid flows through a conduit that connects the heat-transfer unit to the vessel. Upon fluid flow interruption or control sensor removal, the temperature controller quickly detects thermal runaway before the safety sensor has reached the critical temperature. In heated systems, the temperature controller will therefore minimize direct damage and/or overshoot damage caused by excessive heat. It will also maintain the heater's output at an elevated, but non-damaging level to enable a fast recovery to the original setpoint temperature after the nonlinearity subsides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.