The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2014
Filed:
Apr. 16, 2009
Fredrik Jonsson, Bro, SE;
Klas Hedberg, Huddinge, SE;
Magnus Källmark, Stockholm, SE;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
A heat transfer arrangement () comprises a refrigerant circuit (), which refrigerant circuit () comprises an evaporator () adapted to be arranged inside an electronic component housing (), a condenser () adapted to be arranged outside the electronic component housing (), a first conduit () and a second conduit (). A refrigerant is present in the refrigerant circuit () and in use is arranged to self-circulate by evaporating in the evaporator (), rising as a gas through the first conduit (), condensing in the condenser () and flowing through the second conduit () to the evaporator (). The heat transfer arrangement () further comprises a reservoir () for liquid refrigerant connected to the refrigerant circuit (). A control device associated with the reservoir () is operable such that liquid refrigerant is collected in the reservoir () from the refrigerant circuit () to reduce heat exchange from the inside of the electronic component housing () to the ambient environment and such that liquid refrigerant is introduced from the reservoir () to the refrigerant circuit to increase heat exchange from the inside of the electronic component housing () to ambient environment.