Abstract: A heat dissipation simulator of a component on a printed circuit board (PCB) includes a simulation board and a simulated heat source. The simulation board includes an iron layer and a plastic layer. The simulated heat source includes a simulation chip, a thermal, and a heat sink. The simulation chip, the thermal piece, and the heat sink are mounted on the simulation board in that order. The heat dissipation simulator replaces a sample of the PCB with the component for simulating working states of the component on the PCB.

Abstract: A fastening device for an expansion card includes a first rack, a second rack opposite to the first rack, and a fastener. The first rack defines a first opening. A supporting plate extends from the first rack toward the second rack. A position tab extends up from the supporting plate. The fastener engages with the first rack and comprises a resilient arm. The supporting plate supports a bottom surface of a first end of the expansion card. The position tab is received in a mounting hole defined in the first end of the expansion card. The resilient arm is deformed and extends through the first opening, and is blocked by the first rack and abuts a top surface of the first end of the expansion card. A second end of the expansion card is fastened to the second rack.

Abstract: An electronic device enclosure includes a casing, an air duct mounted in the casing, and a latching member. The air duct includes a receiving bracket formed on the air duct for receiving an uninterruptible power supply module. The latching member is covered on the receiving bracket to position the uninterruptible power supply module. A first side of the latching member is rotatably connected to the receiving bracket, and a second side of the latching member is detachably latched to the receiving bracket.

Abstract: A mounting apparatus is used for mounting a backplane in a chassis. The backplane defines a number of locking slots in opposite sides and a through hole in a middle portion. The mounting apparatus includes a bracket and a locking member pivotably mounted to the chassis. The bracket includes a bottom plate fixed on the bottom wall, and a side plate and a flange extending up from the bottom plate. The bottom plate defines a slide slot. The side plate and the flange each form a number of retaining tabs. A post extends on the locking member and extends through the slide slot and the through hole. The circuit board is set on the bottom plate, with the locking slots aligned with the retaining tabs. The locking member is rotated, the post drives the circuit board to move, until the retaining tabs retain a top surface of the backplane.

Abstract: A fixing apparatus is used to parallel mount an expansion card to a motherboard. The fixing apparatus includes a mounting bracket fixed to the motherboard, and a retaining member rotatably connected to the mounting bracket. The mounting bracket includes a supporting board supporting the expansion card. The retaining member includes an abutting arm and a locking portion. When the retaining member is rotated to a locking position, the abutting arm abuts against a top of the expansion card to sandwich the expansion card with the supporting board, and the locking portion engages with the mounting bracket to prevent a rotation of the retaining member. When the retaining member is rotated to a releasing position, the abutting arm will move away from the expansion card.

Abstract: A mounting device for fixing an expansion card to a circuit board includes a fixing member and a latching member. Each of the fixing member and the latching member includes a supporting portion sandwiched between the circuit board and the expansion card, a post extending from the supporting portion extending through the expansion card, and a projection abutting a top surface of the expansion card.

Abstract: A switch assembly mounted to a circuit board includes a switch and a housing. A light-emitting diode (LED) is mounted on the circuit board. The switch is received in the housing. The housing is mounted on the circuit board and covers the LED.

Abstract: An electronic device includes an enclosure, a motherboard received in the enclosure, and an expansion card module received in the enclosure. The expansion card module includes a bracket, a conversion card with a connector, and an expansion card. The bracket includes a main plate and a seat. The conversion card is fixed on the main plate. The expansion card includes a circuit board plugged in the connector and a blocking piece fixed to the seat.

Abstract: An electronic device includes a motherboard defining a number of through holes, a bottom wall forming a number of posts, and a fixing member including a fixing body mounted to the bottom wall and a movable body slidably mounted to the fixing body. Each through hole includes a first hole and a second hole communicating with each other. Each post includes a supporting portion, a head, and a neck. The fixing body forms a protrusion. The movable body includes a main portion, a connecting portion connected to the main portion and defining a limiting slot. The heads are extended through the first holes; the necks abut end walls bounding the second holes. The motherboard is sandwiched between the heads and the supporting portions, the protrusion is engaged in the limiting slot, and the main body abuts against an end of the motherboard adjacent to the fixing member.

Abstract: A vibration-proof member for a cooling fan includes a plate to absorb vibration, a post perpendicularly extending out from a side of the absorbing plate, and an extending portion perpendicularly extending out from a part of a lateral side of the absorbing plate. The construction and method of installing the vibration-proof member allows any required number of the vibration-proof members to be installed and to function effectively whether the fan is installed on a vertical bracket or on a horizontal bracket.

Abstract: A heat dissipation simulator of a component on a printed circuit board (PCB) includes a simulation board and a simulated heat source. The simulation board includes an iron layer and a plastic layer. The simulated heat source includes a simulation chip, a thermal, and a heat sink. The simulation chip, the thermal piece, and the heat sink are mounted on the simulation board in that order. The heat dissipation simulator replaces a sample of the PCB with the component for simulating working states of the component on the PCB.

Abstract: An attachment mechanism for fastening an expansion card includes a circuit board, a positioning member, and a receiving member. The circuit board includes a first connector electrically connected to a second connector of the expansion card. The positioning member is fastened to the circuit board. The receiving member receives the expansion card. The receiving member engages with the positioning member.

Abstract: A mounting apparatus for mounting an expansion card to a socket forming a flange includes a retaining member. The retaining member includes a mounting plate fixed to the expansion card, an operation portion extending from a side of the mounting plate, and a locking portion extending down from the operation portion and locked to the flange.

Abstract: A fastening device for an expansion card includes a chassis and a fastener. The chassis includes a first rack, and a second rack behind the first rack. The second rack is fastened to a rear end of the expansion card. The fastener is pivotably and slidably connected to the first rack. A supporting portion is formed on the fastener. When the fastener is rotated to a first position, the fastener is in front of the first rack, when the fastener is rotated to a second position, the fastener is operable to be slid back to allow the supporting portion to support a front end of the expansion card.

Abstract: An electronic device enclosure includes a casing, an air duct mounted in the casing, and a latching member. The air duct includes a receiving bracket formed on the air duct for receiving an uninterruptible power supply module. The latching member is covered on the receiving bracket to position the uninterruptible power supply module. A first side of the latching member is rotatably connected to the receiving bracket, and a second side of the latching member is detachably latched to the receiving bracket.

Abstract: A fastening device for an expansion card includes a first rack located at a front side, a second rack located at a rear side, a supporting member fastened to the first rack, and a rotating member rotatably connected to the supporting member. A pole extends up from the supporting member. When the rotating member is rotated up, a first end of the expansion card is operable to abut a top of the supporting member and the pole extends through a mounting hole defined in the first end of the expansion card. The rotating member is operable to rotate down to abut a top of the expansion card and engage with the supporting member. A second end of the expansion card opposite to the first end is fastened to the second rack.

Abstract: A fastening device for fastening a data storage device includes a rack and a resilient tab. The rack includes a bottom plate to support the data storage device. Two first stop tabs protrude up from the bottom plate to abut against a first sidewall of the data storage device. Two first pins extend from the first corresponding stop tabs to engage in two mounting holes defined in the first sidewall. The resilient tab is attached to the rack to abut against a second sidewall of the data storage device. A second pin protrudes from the resilient tab to engage in a locking hole defined in the second sidewall.

Abstract: An electronic device includes a motherboard defining a number of through holes, a bottom wall forming a number of posts, and a fixing member including a fixing body mounted to the bottom wall and a movable body pivotably mounted to the fixing body. Each through hole includes a first hole and a second hole communicating with each other. Each post includes a supporting portion, a head, and a neck. The fixing body defines a slot. The movable body includes a main portion, a hook, and a projection extending from an end of the main portion. The heads are extended through the first holes. The necks abut against end walls bounding the corresponding second holes. The motherboard is sandwiched between the heads and the supporting portions. The hook is engaged in the slot, and the projection abuts against an end of the motherboard adjacent to the fixing member.

Abstract: An electronic device includes a motherboard defining a number of through holes, a bottom wall forming a number of posts, and a fixing member including a fixing body mounted to the bottom wall and a movable body slidably mounted to the fixing body. Each through hole includes a first hole and a second hole communicating with each other. Each post includes a supporting portion, a head, and a neck. The fixing body forms a protrusion. The movable body includes a main portion, a connecting portion connected to the main portion and defining a limiting slot. The heads are extended through the first holes; the necks abut end walls bounding the second holes. The motherboard is sandwiched between the heads and the supporting portions, the protrusion is engaged in the limiting slot, and the main body abuts against an end of the motherboard adjacent to the fixing member.

Abstract: A mounting device for fixing an expansion card having an edge connector includes a motherboard and a fixing member mounted on the motherboard. An expansion slot is mounted on the motherboard. The fixing member includes a connecting portion, two blocks connected to opposite ends of the connecting portion, a resilient portion extending from the connecting portion away from the expansion slot, a protrusion protruding from the resilient portion. An L-shaped hook extends from a top of each block. The expansion card is limited by the connecting portion and the hooks, with the edge connector engaged in the expansion slot, and another end of the expansion card opposite to the edge connector blocked by the protrusion.