Energy source and method for supplying an autonomous electrical load system and the use of same

US9112108B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Rolf Scheben · Stuttgart, DE
• Mirko Hattass · Stuttgart, DE

Key dates

• Filing date: Apr 29, 2013
• Grant date: Aug 18, 2015
• Expiry date: Feb 21, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N10/13

Abstract

An energy source for supplying an autonomous electrical load system with electrical energy includes a thermogenerator device configured to generate a thermoelectric voltage to be fed to the electrical load system. The thermogenerator device is under the influence of a temperature difference between a warmer first thermal coupling device and a colder second thermal coupling device. The energy source further includes a microfluidic cooling device having a heat-absorption region, a heat-emission region, and a closed microfluidic circulation system configured to circulate a fluid between the heat-absorption region and the heat-emission region. The heat-absorption region has a thermally conductive connection to the second thermal coupling device. The heat-emission region is configured to be coupled to an external heat sink using a thermally conductive connection such that the circulating fluid carries thermal energy away from the second thermal coupling device and transports the thermal energy to the external heat sink.