Thermoelectric environmental chamber
US4328676A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1981 |
| Grant date | May 11, 1982 |
| Priority date | — |
| Expiry date | Mar 25, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2700/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A portable, lightweight thermoelectric environmental chamber includes insulative side walls, an insulative bottom and an insulative cover that is hingeably connected to one of the walls. A handle is attached to the upper surface of the cover. A thermoelectric unit includes a thermoelectric heat pumping device disposed between an internal heat exchanger disposed inside the thermal compartment of the environmental chamber and an external heat exchanger disposed outside of the thermal compartment. An external blower continuously forces outside air along the surface of the external heat exchanger when the thermoelectric environmental chamber is turned on. An internal blower is controlled by a momentary switch that turns the internal blower on when the cover is closed. A shroud encloses the internal blower and guides air in close proximity to the internal heat exchanger and recirculates air in the compartment to maintain a uniform temperature in the thermal compartment when the cover is closed. A port is provided in one of the walls to allow electrical communication or other types of communication between a device or substance being thermally tested in the thermal compartment and a loca…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.