Device for housing communications and electronics equipment using positive temperature coefficient material

An improved enclosure for housing communications and electronics equipment comprises a heating element fabricated with a positive temperature coefficient material. The enclosure is particularly useful for housing communications equipment and cell site base stations for cellular telephone systems in...

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Bibliographic Details
Main Authors TRUONG, HAN Q, PLAZA, DANIEL, AAKULA, NANDAKUMAR G
Format Patent
LanguageEnglish
French
German
Published 13.10.1999
Edition6
Subjects
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
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Summary:An improved enclosure for housing communications and electronics equipment comprises a heating element fabricated with a positive temperature coefficient material. The enclosure is particularly useful for housing communications equipment and cell site base stations for cellular telephone systems in the outdoors; it has self-regulating heating capabilities that are not dependent upon voltage parameters, thereby enabling its use in diverse geographic locations. In a preferred embodiment, a plurality of PTC heating elements are used and selectively located adjacent a plurality of circuitry regions. DC power may be used to energize the PTC heaters, and the enclosure may be used for telephone equipment operating with AC or DC power.
Bibliography:Application Number: EP19990302412