Mounting apparatus for expansion card

A mounting apparatus includes a chassis, a mounting member, a mounting tray received in the chassis, and a securing device. The chassis includes a front plate and a positioning member attached to the front plate. The mounting member is used to secure an expansion card and includes a flange. The mounting tray includes a front panel and a retaining panel connected to the front panel. The securing device includes a first securing member and a second securing member. The first securing member is rotatably attached to the front plate, and the second securing member is rotatably attached to the first securing member. The flange is located between the retaining panel and the first securing member. The positioning member abuts the second securing member, to prevent the second securing member from being disengaged from the first securing member.

BACKGROUND

1. Technical Field

The present disclosure relates to mounting apparatus, and particularly to a mounting apparatus for securing expansion cards in an electronic device.

2. Description of Related Art

A computer system usually includes expansion cards, such as sound cards, video cards, graphics cards and etc., for enhancing the capabilities of the computer system. The expansion cards are often attached to the computer casing with screws. However, using screws to attach the expansion cards is laborious and time consuming.

DETAILED DESCRIPTION

Referring toFIGS. 1 and 2, a mounting apparatus capable of securing three expansion cards30, includes a chassis10, a mounting tray20, and a securing device50. The three expansion cards30may be, for example, one or more sound cards, video cards, or graphics cards, or other peripheral component interconnection (PCI) cards.

A mounting member40is attached to a front portion of each expansion card30. A flange41is located at a first end of the mounting member40, and an insertion portion43extends from a second end of the mounting member40.

The chassis10includes a bottom plate11and a front plate13connected to the bottom plate11. In one embodiment, the bottom plate11is substantially perpendicular to the front plate13. An opening131and two notches133are defined in the front plate13. The two notches133are arranged in or on opposite sides of the opening131.

A positioning member60is attached to an inner surface of the front plate13. The positioning member60includes a securing piece61attached to the front plate13and a positioning portion63connected to the securing piece61. The positioning portion63includes a first positioning piece631, a second positioning piece633, and a third positioning piece635, located between the first and second positioning pieces631,633. An operating tab6311(seeFIG. 6) is connected to the first positioning piece631and angled toward the first positioning piece631. In one embodiment, the first, second and third positioning pieces631,633,635cooperatively define a receiving space70.

The mounting tray20includes a front panel21, a side panel23, and a top panel25. The top panel25is connected to the front panel21and the side panel23. In one embodiment, the top panel25is substantially perpendicular to the front panel21and the side panel23. A retaining panel215is connected to the front panel21. The retaining panel215and the front panel21cooperatively define three expansion slots214. A mounting panel217, with a first mounting post2170, is connected to the retaining panel215. Two first pivot portions2171extend from a top side and a bottom side of the mounting panel217, respectively. Each pivot portion2171further defines a first pivot hole2173therein. An arm2172extends from a side edge of the mounting panel217. A mounting panel231, including a second mounting post2311, extends from the side panel23. Three receiving holes (not shown), adjacent to the positioning panel231, are defined in the side panel23, for receiving the insertion portions43.

Referring toFIGS. 2-3, the securing device50includes a first securing member51and a second securing member53rotatably attached to the first securing member51. The first securing member51includes a first base511and an extending portion513, connected to the first base511. Two first pivot posts5113, corresponding to the two first pivot holes2173, extend from opposite sides of the first base51. Two second pivot portions515are located between the first base511and the extending portion513. Each second pivot portion515further defines a second pivot hole5151.

The second securing member53includes a second base531, a resisting panel533, and a driving panel535. Two second pivot posts5311corresponding to the two second pivot holes5151, are located on the second base531. In one embodiment, the driving member535is substantially parallel to the resisting panel533, and perpendicular to the second base531.

Referring toFIGS. 4-8, in assembly, the first securing member51is located between the two first pivot portions2171. The two first pivot posts5113are received in the two first pivot holes2173, to rotatably secure the first securing member51to the mounting panel217. The two second pivot posts are received in the two second pivot holes5151, to rotatably secure the second securing member53to the first securing member51.

The securing device50is rotatable relative to the mounting panel217between an open position and a close position. In the open position (seeFIG. 4), the first base511is at an angle to the retaining panel215to define a gap, and the second base531is at an angle to the first base511. In the close position (seeFIG. 6), the first base511is substantially parallel to the retaining panel215, and the second base531abuts against the first base511.

In assembly of the expansion cards30, the second securing member53is rotated clockwise around the second pivot posts5311, and the first securing member51is rotated anticlockwise around the first pivot posts5113, until the securing device50is rotated to the open position.

The three expansion cards30are received in the mounting tray20, and the mounting members40are positioned in the expansion slots214. The insertion portions43are inserted into the three receiving holes of the side panel23. The flanges41are located between the retaining panel215and the first base511. The second securing member53is rotated anticlockwise around the second pivot posts5311, and the first securing member51is rotated clockwise around the first pivot posts5113, until the securing device50is rotated to the close position.

The mounting tray20is accommodated in the opening131. The first and second mounting posts2170,2311are inserted into the two notches133, and the arm2172is received in the receiving space70. The second positioning piece633is located between the arm2172and the resisting panel533to prevent the second securing member53from rotating around the second pivot posts5311. Therefore, the second securing member53can be stably secured to first securing member51, and the flanges41can be sandwiched between the first base511and the retaining panel215.

In disassembly, the mounting tray20is moved upward to disengage the arm2172from the receiving space70. The second securing member53is rotated clockwise around the second pivot posts5311, and the first securing member51is rotated anticlockwise around the first pivot posts5113, until the securing device50is rotated to the open position. Therefore, the flanges41can be disengaged from the gap between the retaining panel215and the first base511. The expansion cards30may be moved to disengage the insertion portions43from the receiving holes of the side panel23, so that the expansion cards30may be detached from the mounting tray20.