Power supply device

Abstract

A power supply device includes a circuit board that has an arrangement surface and a rear surface opposite to the arrangement surface and that has a through hole. An insertion mounted circuit component, a connector and a surface mounted light emitting component that is provided for confirming an operation of the power supply device are assembled on the arrangement surface. A chassis holds the circuit board from the sides and the rear surface of the circuit board and has an opening to expose the connector. The surface mounted light emitting component is surface mounted on the rear surface of the circuit board. The through hole is provided near the surface mounted light emitting component so as to guide light emitted from the surface mounted light emitting component toward the opening of the chassis.

What is claimed is: 
     
       1. A power supply device, comprising:
 a circuit board including: 
 an arrangement surface; 
 a rear surface on an opposite side of the circuit board as the arrangement surface; 
 a through hole extending from the arrangement surface to the rear surface; and 
 an insertion mounted circuit component, a connector and a surface mounted light emitting component that is provided for confirming an operation state of the power supply device mounted thereon; and 
 a chassis that holds the circuit board from sides and the rear surface of the circuit board, the chassis having an opening that exposes the connector, wherein 
 the surface mounted light emitting component is surface mounted on the rear surface of the circuit board, 
 the through hole is provided adjacent to the surface mounted light emitting component so as to guide light emitted from the surface mounted light emitting component toward the opening of the chassis, 
 the surface mounted light emitting component is configured with a light emitting member and an optical dispersion member operably associated with the light emitting member, and 
 an edge of the optical dispersion member is located inside the through hole in a plan view. 
 
     
     
       2. The power supply device according to  claim 1 , wherein
 the surface mounted light emitting component is a light emitting diode. 
 
     
     
       3. The power supply device according to  claim 1 , wherein the light emitting member is a light emitting diode.