Abstract: An exemplary embodiment of a fan module includes fan units, and each fan unit includes a box-shaped shell, a guiding plate, and a torsion spring. The box-shaped shell includes a bottom plate and two opposite side walls substantially perpendicular to the bottom plate, and each side wall has a vent defined therein. The guiding plate is rotatable relative to the bottom plate of the shell. The torsion spring includes a first torsion arm, a second torsion arm, and a coil portion. The first torsion arm and the second torsion arm are urged against the bottom plate and the guiding plate respectively by torque force applied from the coil portion. Thereby, the guiding plate is driven to a position adjacent and generally parallel to one of the side walls to obstruct the corresponding vent by the second torsion arm.

Abstract: A securing apparatus for securing a hard disk with two opposite sidewalls includes a connecting rod, a first securing plate, a second securing plate, a supporting rod, and a locking handle. The connecting rod includes a first end portion and a second end portion. The first securing plate has an end fixed to the first end portion of the connecting rod. The second securing plate has an end pivotably connected to the second end portion of the connecting rod, the second securing plate includes a locking member. The supporting rod has a first end fixed to the first securing plate, and a second end opposite to the first end. The locking handle is pivotably connected to the second end of the supporting rod, the locking handle is able to be locked by the locking member to keep the second securing plate clamped to the hard disk.

Abstract: An exemplary electronic includes a casing and a circuit board. The casing includes a bottom plate and two side plates extending upward from two opposite sides of the bottom plate, respectively. Hooks are formed on the bottom plate. Two guiding members are located at the side plates, respectively. The circuit board defines engaging slots corresponding to the hooks of the bottom plate, respectively. During assembly of the circuit board to the casing, the circuit board is inserted into the casing and slides between the side plates with two opposite lateral sides thereof sliding along the guiding members, until the hooks of the bottom plate are received in the engaging slots of the circuit board and the circuit board is thereby secured in the casing.

Abstract: An exemplary electronic device includes a housing, a left rail and a right rail assembled in the housing, and a holder assembled on the left and right rails and received in the housing. The holder can slide out from the housing for securing a functional module thereon. The holder includes a bottom plate glidingly assembled on the left and right rails, and front and rear plates both pivotally secured on the bottom plate. The front and rear plates are both elastically biased to rotate about the bottom plate. When the holder is at least partially received in the housing, the front and rear plates are in original closed positions. When the holder is almost totally slid out from the housing, the front and rear plates rotate about the bottom plate to be in open positions for providing resilience to secure the functional module.

Abstract: A hard disk drive includes a housing module configured to accommodate one of many different types of hard disk modules. Each hard disk module includes a number of connectors. The housing module includes a connecting board, and different types of connectors protruding from the connecting board, corresponding to the connectors of the different types of hard disk modules.

Abstract: A mounting apparatus is provided to hold a data storage device including opposite sidewalls. The mounting apparatus includes a fixing board fixed to one of the sidewalls, an installing member, and a resilient member mounted to the installing member. A mounting portion extends from an end of the fixing board. The installing member defines a receiving space. The mounting portion is received in the receiving space, and slidably mounted to the installing member. The resilient member elastically resists against the mounting portion.

Abstract: A fan fastening device used to fix a chassis having a plurality of fans to a housing. The fan fastening device includes two locking element and two lever assembly. Each lever assembly includes a first end and a second end opposite to the first end. Each first end is slidably fixed to one of the locking element, each second end is rotatably fixed to the chassis and resists the housing; the locking elements are pulled away from the housing to drive the lever assemblys pulling the chassis until the chassis is detached from the housing.

Abstract: An exemplary electronic includes a casing and a circuit board. The casing includes a bottom plate and two side plates extending upward from two opposite sides of the bottom plate, respectively. Hooks are formed on the bottom plate. Two guiding members are located at the side plates, respectively. The circuit board defines engaging slots corresponding to the hooks of the bottom plate, respectively. During assembly of the circuit board to the casing, the circuit board is inserted into the casing and slides between the side plates with two opposite lateral sides thereof sliding along the guiding members, until the hooks of the bottom plate are received in the engaging slots of the circuit board and the circuit board is thereby secured in the casing.

Abstract: A mounting apparatus includes a frame to receive a storage device and a cushion fixed to a rear end of the frame. A number of protrusions extend from an outer side of the cushion away from the frame, to protect the storage device and the frame from vibration.

Abstract: An electronic device module includes an electronic device, a rack accommodating the electronic device, and a shield adjusting assembly. The rack defines a number of ventilation holes, and the shield adjusting assembly defines a number of through holes. The electronic device is placed in the rack to drive the shield adjusting assembly to a first position in which the through holes align with the ventilation holes. When the electronic device is detached from the rack, the shield adjusting assembly is restored by a resilient element to a second position in which the through holes offset the ventilation holes such that the ventilation holes are shielded.

Abstract: A securing apparatus for securing a hard disk with two opposite sidewalls includes a connecting rod, a first securing plate, a second securing plate, a supporting rod, and a locking handle. The connecting rod includes a first end portion and a second end portion. The first securing plate has an end fixed to the first end portion of the connecting rod. The second securing plate has an end pivotably connected to the second end portion of the connecting rod, the second securing plate includes a locking member. The supporting rod has a first end fixed to the first securing plate, and a second end opposite to the first end. The locking handle is pivotably connected to the second end of the supporting rod, the locking handle is able to be locked by the locking member to keep the second securing plate clamped to the hard disk.

Abstract: An exemplary electronic device includes a housing, a left rail and a right rail assembled in the housing, and a holder assembled on the left and right rails and received in the housing. The holder can slide out from the housing for securing a functional module thereon. The holder includes a bottom plate glidingly assembled on the left and right rails, and front and rear plates both pivotally secured on the bottom plate. The front and rear plates are both elastically biased to rotate about the bottom plate. When the holder is at least partially received in the housing, the front and rear plates are in original closed positions. When the holder is almost totally slid out from the housing, the front and rear plates rotate about the bottom plate to be in open positions for providing resilience to secure the functional module.

Abstract: An exemplary embodiment of a fan module includes fan units, and each fan unit includes a box-shaped shell, a guiding plate, and a torsion spring. The box-shaped shell includes a bottom plate and two opposite side walls substantially perpendicular to the bottom plate, and each side wall has a vent defined therein. The guiding plate is rotatable relative to the bottom plate of the shell. The torsion spring includes a first torsion arm, a second torsion arm, and a coil portion. The first torsion arm and the second torsion arm are urged against the bottom plate and the guiding plate respectively by torque force applied from the coil portion. Thereby, the guiding plate is driven to a position adjacent and generally parallel to one of the side walls to obstruct the corresponding vent by the second torsion arm.

Abstract: An electronic device module includes an electronic device, a rack accommodating the electronic device, and a shield adjusting assembly. The rack defines a number of ventilation holes, and the shield adjusting assembly defines a number of through holes. The electronic device is placed in the rack to drive the shield adjusting assembly to a first position in which the through holes align with the ventilation holes. When the electronic device is detached from the rack, the shield adjusting assembly is restored by a resilient element to a second position in which the through holes offset the ventilation holes such that the ventilation holes are shielded.

Abstract: A hard disk drive includes a housing module configured to accommodate one of many different types of hard disk modules. Each hard disk module includes a number of connectors. The housing module includes a connecting board, and different types of connectors protruding from the connecting board, corresponding to the connectors of the different types of hard disk modules.

Abstract: A mounting apparatus includes a frame to receive a storage device and a cushion fixed to a rear end of the frame. A number of protrusions extend from an outer side of the cushion away from the frame, to protect the storage device and the frame from vibration.

Abstract: A mounting apparatus is provided to hold a data storage device including opposite sidewalls. The mounting apparatus includes a fixing board fixed to one of the sidewalls, an installing member, and a resilient member mounted to the installing member. A mounting portion extends from an end of the fixing board. The installing member defines a receiving space. The mounting portion is received in the receiving space, and slidably mounted to the installing member. The resilient member elastically resists against the mounting portion.