1. Technical Field
The present disclosure relates to an attachment mechanism for fastening an expansion card to a circuit board.
2. Description of Related Art
In servers, expansion cards are electrically connected to a circuit board through connectors of the circuit board. However, the connectors may not be securely fastened to the circuit board and the expansion cards may disengage from the connectors, both of which adversely influence data transmission of the server. Therefore, there is room for improvement in the art.
Many aspects of the present embodiments can be better understood with reference 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 present embodiments. Moreover, in the drawings, all the views are schematic, and like reference numerals designate corresponding parts throughout the several views.
The disclosure, including the accompanying drawings, is illustrated by way of example and not by way of limitation. 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.”
The circuit board 10 includes a first connector 12. The positioning member 3 is fastened to the circuit board 10 and is adjacent to the first connector 12. The positioning member 3 includes a fastening tab 13 fastened to the circuit board 10, and a mounting tab 14 extending substantially perpendicularly up from a side of the fastening tab 13. A mounting hole 142 is defined in the mounting tab 14.
The first fastener 20 includes a base plate 21, a top plate 22 extending substantially perpendicularly from a top side of the base plate 21, two side plates 23 extending from opposite ends of the base plate 21, respectively, two supporting feet 24 extending down from a bottom side of the base plate 21, and a connection pole 25 connected between the supporting feet 24. The base plate 21 defines two through holes 212. A semicircular receiving portion 221 is formed on a side of the top plate 22 opposite to the base plate 21. An engaging hole 232 is defined in an inner surface of each side plate 23. A plurality of skid-proof strips 233 is formed on an outer surface of each side plate 23.
The second fastener 30 includes a main body 31, a top plate 32 perpendicularly extending from a top side of the main body 31, two side plates 33 extending from opposite ends of the main body 31, and two supporting feet 34 extending down from a bottom side of the main body 31. Two hooks 35 extend from inner sides of opposite ends of the main body 31, respectively. Two substantially L-shaped clamping arms 36 extend from an outer side of the main body 31, opposite to each other. A protrusion 37 located between the clamping arms 36 extends from the outer side of the main body 31. A semicircular receiving portion 321 is formed on a side of the top plate 32 opposite to the main body 31. A plurality of skid-proof strips 333 is formed on an outer surface of each side plate 33.
A second connector 101 is mounted to a lower portion of a first side of the expansion card 100. An indication lamp 102 is mounted to an upper portion of the first side of the expansion card 100. Two pins 1012 extend from a second side of the expansion card 100 opposite to the first side.
The expansion card 100 is received in the receiving member 2, and the second fastener 30 of the receiving member 2 engages with the positioning member 3 mounted to the circuit board 10. Therefore, the expansion card 100 is firmly fastened to the circuit board 10.
Even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and the functions of the embodiments, the disclosure is illustrative only, and changes may be made in details, especially in the matters of shape, size, and arrangement of parts within the principles of the embodiments to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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2013101825632 | May 2013 | CN | national |