Low-noise direct-current 48V communication power supply

The utility model belongs to the technical field of communication, particularly relates to a low-noise direct-current 48V communication power supply, and aims to solve the problem that noise is continuously generated due to the fact that an existing device forms airflow through a cooling fan and dis...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LI LIKANG, ZHU JIASHU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALARM SYSTEMS APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES ORDER TELEGRAPHS PHYSICS PRINTED CIRCUITS SIGNALLING SIGNALLING OR CALLING SYSTEMS TESTING
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Beschreibung
Zusammenfassung:	The utility model belongs to the technical field of communication, particularly relates to a low-noise direct-current 48V communication power supply, and aims to solve the problem that noise is continuously generated due to the fact that an existing device forms airflow through a cooling fan and discharges heat in the device, the low-noise direct-current 48V communication power supply comprises a power supply box, and a sound insulation layer plate is laid on the periphery of the interior of the power supply box through glue. Three heat dissipation plates are evenly inserted in the two sides of the power source box in a penetrating mode, heat collection plates are installed at the ends, close to each other, of the three heat dissipation plates on the same side in the six heat dissipation plates and located in the power source box in a welded mode, an alternating current interface is formed in one side of the power source box, and one end of the alternating current interface is connected with a transformer thr