Patent Publication Number: US-2012033358-A1

Title: Mounting apparatus for power supply

Description:
BACKGROUND 
     1. Technical Field 
     The present disclosure relates to mounting apparatuses for power supplies, and particularly to a mounting apparatus for readily and securely attaching a power supply to an electronic device. 
     2. Description of Related Art 
     Low-voltage direct current power is required for electronic components in an electronic device, such as motherboards and hard disk drives in a computer. A power supply is often mounted in an enclosure of the electronic device for converting alternating current to direct current and supplying the direct current to the electronic components. 
     Usually, the power supply unit is mounted in the enclosure from an interior of the enclosure. However, because the interior of the enclosure is often over crowded, it is difficult to move the power supply unit. Further, when the power supply unit is moved in the interior of the enclosure, the power supply unit often comes in contact with other components in the enclosure, which may damage or destroy the power supply unit and other components. 
     Therefore, there is room for improvement within the art. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Many aspects of the embodiments can be better understood with references to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views. 
         FIG. 1  is an isometric and exploded view of a mounting apparatus and a power supply unit in accordance with one embodiment. 
         FIG. 2  is similar to  FIG. 1 , but viewed from another aspect. 
         FIG. 3  is an assembled view of the mounting apparatus and the power supply unit of  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION 
     The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one. 
     Referring to  FIGS. 1 and 2 , a mounting apparatus in accordance with an embodiment for mounting a power supply unit  30  includes an enclosure  10 . The power supply unit  30  includes a top wall  31 , a bottom wall  32 , a front wall  33 , a rear wall  34 , and a pair of side walls  35 . The front wall  33  defines a plurality of first vent holes  331 . The rear wall  34  defines a plurality of second vent holes  341 . A mounting piece  332  is connected to a connection portion of the front wall  33  and a side wall  35 . The mounting piece  332  is perpendicular to the front wall  33 . The mounting piece  322  and the side wall  35  are located in the same plane. A mounting hole  334  is defined in the mounting piece  332 . A connection portion of the top wall  31  and each side wall  35  is an arc shaped bridge corner  37 . A connection portion of the bottom wall  32  and each side wall  35  is an arc shaped bridge corner  37 . 
     The enclosure  10  includes a top plate  11 , a rear plate  14 , and a side plate  15 . The top plate  11 , the rear plate  14 , and the side plate  15  are perpendicular to each other. The rear plate  14  defines an appropriately rectangular opening  141 . A size of the opening  141  is slightly larger than that of the front wall  33  of the power supply unit  30 . Four restricting pieces  143  are connected to four edges of the opening  141 . The restricting pieces  143  are perpendicular to the rear plate  14 . Each restricting piece  143  defines a plurality of grooves  145 . An elastic finger  146  is located in each groove  145  for shielding electro magnetic interference (EMI). The elastic finger  146  is slightly titled up from the restricting piece  143 . Four corners of the opening  141  are round corners  147  for accommodating with the four bridge corners  37  of the power supply unit  30 . 
     A mounting plate  16  is mounted on the side plate  15 . The mounting plate  16  is located adjacent the opening  141 . The mounting plate  16  has a horizontal support piece  161  and a vertical stop piece  163 . Both the support piece  161  and the stop piece  163  are perpendicular to the side plate  15 . The support piece  161  and a lower edge of the opening  141  are located in a horizontal plane. The mounting plate  16  defines a securing hole  165  corresponding to the mounting hole  334  of the power supply unit  30 . 
     Referring to  FIGS. 1 to 3 , to mount the power supply unit  30  in the enclosure  10 , the front wall  33  of the power supply unit  30  is in alignment with the opening  141 . The power supply unit  30  is moved in the enclosure  10  through the opening  141 . Because the bridge corners  37  of the power supply unit  30  and the round corners  147  of opening  141  are in an arc shape, tt is smooth for the power supply unit  30  moving in the opening  141 . Simultaneously, the four restricting pieces  143  abut the top wall  31 , the bottom wall  32 , and the pair of side walls  35  of the power supply unit  30 . The elastic fingers  146  of the restricting pieces  143  are in contact with outer surface of the power supply unit  30  to achieve EMI shielding. The restricting piece  143 , which is connected to the lower edge of the opening  141 , supports the power supply unit  30  thereon. The power supply unit  30  is moved until the support piece  161  supports the power supply unit  30  and the stop piece  163  abuts the front wall  33  of the power supply unit  30 . In this position, the mounting hole  334  is in alignment with the securing hole  165 . A fastener is mounted in the mounting hole  334  and the securing hole  165  to secure the power supply unit  30  in the enclosure  10 . 
     When the power supply unit  30  needs to be disassembled, the fastener is detached, and the power supply unit  30  can be slid from the opening  141  and out of the enclosure  10 . 
     In the mounting apparatus for power supply unit  30 , the power supply unit  30  can be inserted in the enclosure  10  or removed from the enclosure  10  through the opening  141 . Therefore, the power supply unit  30  avoids contact with other components in the enclosure  10  when the power supply unit  30  is moved. 
     It is to be understood, however, that even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and function of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the present disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.