Abstract: A display system is disclosed for an information system component that includes a case with a first connector. The display system comprises a housing, a screen mounted on the housing and configured to display information, a control mounted on the housing for controlling an aspect of operation of the screen, and a mount structure configured to connect the housing to the information system component. The mount structure is configured to removably mount the housing on the case of the information system component. The mount structure includes a second connector configured to removably connect to the first connector on the case of the information system component.

Abstract: The present invention provides for a protective enclosure comprising a base comprising a first continuous mating surface and at least one conveyance aperture, a cover comprising a second continuous mating surface, wherein the second continuous mating surface is configured to form a seal with the first continuous mating surface, and a clamp, wherein at least a portion of the clamp is coupleable to the base, wherein a mouth of the clamp is configured to be offset from the aperture when the clamp is coupled to the base, wherein the clamp comprises a first sealing layer, and wherein the clamp is configured to seal the aperture against contaminants. The protective enclosure may be configured for use in a remotely controllable model vehicle to protect a control module.

Abstract: A cooling system for rack mount electrical or electronic equipment comprises a hollow, box-shaped exhaust shelf having a vent on at least one end face thereof. The exhaust shelf may be configured for rack mounting. A side duct, open on its inner side, is mounted between the exhaust shelf and a top rail adapted to be mounted between a front post and an opposing rear post in a four-post rack mount enclosure. A plenum in the side duct is in fluid communication with the interior chamber of the exhaust shelf. A chassis having a side-facing exhaust for cooling air may be mounted on or over the exhaust shelf such that warm air exiting the chassis is collected in the plenum of the side duct and channeled into the exhaust shelf and out through the vent. In this way, the desired front-to-back cooling air flow within a rack mount enclosure may be maintained even if one or more individual chassis mounted in the enclosure have side cooling air exhausts.

Abstract: A mounting apparatus includes a bracket defining a clamping hole, a receiving rack, a connecting member fixed to the receiving rack, a receiving member fixed to the connecting member, and a latching unit. The latching unit includes a pivoting member pivotably mounted to the receiving member, a first resilient member, a second resilient member, a rotating member pivotably mounted to the pivoting member, a contact member abutting against the rotating member, and a hooking member clamped to the rotating member. The contact member and the hooking member are slidably mounted to opposite ends of the pivoting member, respectively, and can be moved towards each other. The first resilient member resists against the pivoting member and the hooking member to return the hooking member back. The second member resists against the pivoting member and the contact member to return the contact member back.

Abstract: An electronic device enclosure includes an enclosure, and a mounting member. The enclosure includes a front wall and a door rotatably attached to the front wall. The mounting member includes a first mounting panel and a second mounting panel. The mounting member is rotatable relative to the front wall and positioned in a first position or a second position, when the mounting member is located in the first position, the second mounting panel is above the first mounting member, and the second mounting panel abuts the door, preventing the door from rotating relative to the front wall; when the mounting member is located in the second position, the second mounting panel is below the first panel to be disengaged from the door, and the door is opened relative to the front wall.

Abstract: An electronic assembly comprising: a drawer comprising sites for receiving removable boards; a compartment comprising a drawer holder and a connector holder, the drawer being able to be removably inserted into the drawer holder; a first compartment connector part associated with each board site, fastened on the connector holder and provided to be plugged in with a second compartment connector part fastened on a board due to the insertion of the drawer equipped with the board into the drawer holder; and at least one electromagnetic protection screen provided to be adjacent to a first compartment connector part and able to produce an electrical connection between the drawer holder or the connector holder and a board arranged in the site associated with the first compartment connector part when the drawer is inserted into the compartment.

Abstract: A method for a standalone open frame in one example is configured to support a rack-mount electronic component of a predetermined size selected from any of a plurality of predetermined sizes. The standalone open frame is configured to securely engage the rack-mount electronic component through employment of at least one set of rack-mount adapters that is configured for the predetermined size of the rack-mount electronic component.

Abstract: A transformation structure for a redundant power system which includes at least two power supplies and a first circuit board to cluster the power supplies and deliver output thereof and a second circuit board electrically connected to the first circuit board. The second circuit board is coupled with at least one transformation module according to output potentials defined by users. The transformation module receives power from the second circuit board and regulates at least one output power. Hence, the present invention could be formed in an independent module with a function of power transformation. Thereby, the transformation module can be selected and mounted onto the second circuit board according to customer's requirements. The second circuit board has a sufficient area serving heat radiation and insulation. The present invention can obtains merits of decreasing the product size, enhancing heat radiation and providing changeable output specifications to meet customizing requirements.

Abstract: Carriage chassis for installation of a component assembly in a support structure. The support structure includes a power connector in a connector housing. The carriage chassis includes: rails adapted to receive a component assembly and a safety cover. One of the rails includes a tri-lobed torsion stop that includes a first lobe configured to contact the connector housing when no safety cover is installed, preventing a component assembly from coupling with power; a second lobe configured to receive contact from a displacement member of a safety cover, rotating the tri-lobed torsion stop; and a third lobe configured to provide contact to the displacement member when the safety cover is installed and a component assembly is coupled with power. The third lobe and the first lobe prevent removal of the safety cover when a component assembly is coupled with the power connector.

Abstract: A mounting apparatus for a data storage device includes a bracket, a support member slidably mounted to the bracket, two first and second locking members, and two clamping members. Each first locking member includes a first hook detachably locked to the support member, and a fixing pole to clamp the corresponding clamping member. Each second locking member includes a second hook fixed to the support member, and a fixing portion to fix the corresponding clamping member. When the first hooks of the first locking members disengage from the support member, and the first locking members are rotated to drive the corresponding clamping members away from the support member. When the data storage device is sandwiched between the support member and the clamping members, the first locking members are rotated to make the first hooks lock to the support member.

Abstract: An electronic component includes a housing having an inlet section, a mid-section, and an outlet section, mounting components for mounting the housing within an electronics cabinet, at least one movable louver positioned in at least one of the inlet section, the mid-section, and the outlet section, an actuator configured to manipulate the at least one movable louver to vary a volume flowrate of airflow through the housing, and a controller configured to operate the actuator to one of substantially maintain an environmental condition change from the inlet to the outlet within a predetermined range and substantially restrict airflow through the housing when the electronic component is in a relatively low operational state.

Abstract: A repository in the form of a cart, and a method for docking a plurality of portable computers in storage within the cart, are disclosed. The cart has an opening at the top of the cart and each computer is placed within a docking bay, connected electrically to an electrical connector at the docking bay. Each docking bay has an entrance at an upper level and a support member for the computer at a lower level located at a predetermined vertical distance from the upper level. The orientation of the docking bays, and the predetermined vertical distance are such that upon movement of a computer toward a fully seated position within a docking bay, the computer is biased by gravity toward and into retention in the fully seated position and is maintained by gravity assistance in such retention during transport and storage in the cart, connected to the electrical connector at the docking bay.

Abstract: A system for providing computing capacity includes a base module and two or more fin modules coupled to the base module. At least one of the fin modules includes one or more fins and two or more computer systems coupled to the fins. The fins form an enclosure for the computer systems to protect the at least one computer system from environmental conditions. The system can operate in an outdoor environment.

Abstract: An installation assembly for hard disk drives (HDDs) includes a rack and a number of holding members. The rack defines a receiving space and respectively defines two rows of through holes in opposite sides bounding the receiving space. Each holding member includes a frame for receiving a HDD and two arms pivotably installed to opposite sides of the frame. Opposite sides of the frame respectively define two through holes therein. Two pins extend from an inner side of each arm. The frame is received in the receiving space of the rack and movably up and down in the rack. The pins of the arms extend through the corresponding through holes of the rack and the frame to engage with the HDD.

Abstract: A fastening device for securing an appliance within a receiving frame in the interior of a motor vehicle. The receiving frame has a built-in opening into which the appliance can be introduced on an introductory plane along an installation direction and is locked releasably in an end position in the receiving frame. The fastening device has at least one latching hook. The latching hook is movable in the direction of a surface normal of the introductory plane and, in an end position, engages behind at least one retaining device such that the appliance is locked in the end position in the receiving frame against a movement counter to the installation direction.

Abstract: A supporting mechanism for supporting a display screen on a base includes a connecting plate, a hinged plate, and a supporting element. The connecting plate is adapted to be disposed on the display screen, and includes a first hinged element. The hinged plate is hinged to and rotatable about the first hinged element, and includes a second hinged element. The supporting element has a first end hinged to and rotatable about the second hinged element, and a second end opposite to the first end and adapted to be engageable with the base to support the display screen on the base.

Abstract: A windshield for attaching and detaching to an electronic scale includes a plurality of mechanism for the attaching and detaching. Each of the mechanisms includes a latch which engages a member generally found on conventional electronic seals.

Abstract: The invention discloses an electronic device and an engaging structure thereof. The electronic device comprises a first casing and a second casing. The first casing comprises a plate portion and a plurality of hooks. Each hook is located on the plate portion. The second casing comprises a first side portion, a second side portion, an engaging portion, a first rib and a second rib. The engaging portion is between the first and the second side portions and comprises a plurality of recesses. Each recess is engaged with one of the hooks and has a front edge. A gap is between one end of the hook and the front edge of the recess. The first and second ribs are respectively located on the first and the second side portions. The plate portion is disposed on the first and second ribs. The hook can be detached from the recess by the gap.

Abstract: A draft shield for a balance, the draft shield having a rear wall and rails extending forward from the top corners of the rear wall. The rails contain guide tracks for a top cover panel and two sidewalls. A draft shield of this design allows for easy cleaning and also permits the parts to be cleaned to be removed without a tool. To this end, a bottom edge of a front wall of the draft shield is inserted into a seat, such that the front wall can then be pivoted into flush alignment against the top cover panel and the sidewalls and can be secured in this position by locking elements arranged at the front ends of the rails.

Abstract: An HDD frame is used to fix several HDDs and several HDD cables. The HDD frame includes an HDD cage, a latch and an HDD cable bracket. The HDD cage includes three cage boards. Two of the cage boards are disposed at two ends of the other cage board. The latch includes a protrusion. The HDD cable bracket includes a baseboard and a sideboard, which are perpendicular to each other. The baseboard includes a first long edge and a second long edge. The sideboard is disposed at the second long edge. One end of the latch is fixed on the end of the sideboard to make the protrusion protrude through the sideboard hole of the sideboard. After the long edges of the HDD cable bracket are inserted into tracks on the HDD cage, the protrusion protrudes into the cage hole of the HDD cage.

Abstract: The present invention relates to a modular electric system with a base module (2, 11) comprising a substrate (3, 12), a power supply (40), power/data transmission means (4, 16) and holding means; at least one load module (7, 20, 30) comprising an cc electric load, a power/data receiving means (8, 26) and a holding means, said load module (7, 20, 30) being adapted to be placeable on said substrate (3, 12) in first and second positions, wherein in said first position (connecting position) the transmission means (4, 16) of said base module interact with said receiving means (8, 26) of said load module (7, 20, 30) and in said second position (repelling position) interaction of said transmission means (4, 16) and said receiving means (26) is not allowed or possible.

Abstract: A support component structure is removably installed on an electronic device, and is used to mount or dismount a printed circuit board in a frame of the electronic device. The support component structure includes a tray and at least one auxiliary support element. The tray is mounted on the frame in a combination manner, and is used to load the printed circuit board, so that the printed circuit board is mounted or dismounted in the frame. The auxiliary support element is mounted on the tray, and presses against the frame, so as to increase the weight that can be born by the tray.

Abstract: A micro grid apparatus and associated method of formation. At least one tier in a printed circuit board is formed. Each tier includes complex shapes interconnected by bridge modules. Each complex shape includes a central area and at least three radial arms external to and integral with the central area. Each radial arm extends radially outward from the central area. Each pair of adjacent radial arms defines a docking bay. Each complex shape is either a power hub whose central area includes rechargeable batteries or a processor hub whose central area includes processors. A bridge unit of a bridge module is latched in at least one docking bay of each complex shape. Each docking bay not latching a bridge unit of any bridge module latches an irregular shaped module. An irregular shaped module is latched in at least one docking bay in at least two complex shapes.

Abstract: An electronic device includes an enclosure, a side-plate to extend horizontally along a side surface of the enclosure, the side plate including a first horizontal guide, a second horizontal guide and a vertical guide extending vertically from an operating position of the first horizontal guide, a pivot lever to extend horizontally along the side plate, the pivot lever having a fulcrum being engaged with the second horizontal guide, an action point being engaged with the first horizontal guide and a force point, a lifter being engaged with the action point of the pivot lever upon the action point being at the operating position of the first horizontal guide, and a first connector to be disposed at an upper portion of the lifter and to be protruded from the enclosure upon the lifter being moved up by pivoting the pivot lever.

Abstract: A cooling device for rack mount equipment comprises an extensible side duct, open on its inner and rear-facing sides which redirects warm exhaust air exiting vents in the side of a chassis towards the rear of an enclosure holding the chassis. An apparatus incorporating the cooling device may be installed in a rack with the extensible side duct in a retracted position. The extensible side duct may extend under the influence of air pressure, forming a plenum in fluid communication with the interior of a chassis on which it is mounted such that warm air exiting the chassis is collected in the plenum formed by the extensible side duct and directed out towards the rear of the chassis. Use of the apparatus permits conventional front-to-back cooling airflow patterns to be maintained even with chassis having side exhaust vents.

Abstract: An apparatus and method is provided for determining the orientation of a blade server with respect to a blade chassis, whenever the blade is inserted into a chassis with either vertical or horizontal slots. In an embodiment, wherein the blade server has opposing first and second edges, first and second connectors are located in pre-specified corresponding relationship with the first and second blade server edges. A first device in the blade chassis generates an information signal, wherein the information signal has an element that indicates the spatial location of a reference feature of the chassis. The embodiment includes a path for sending the information signal to either the first connector or the second connector, according to the orientation of the blade inserted into the chassis. A second device identifies the connector that receives the information signals, and uses the connector identity and the signal element together to determine the orientation of the inserted blade with respect to the chassis.

Abstract: In one embodiment, a power cell chamber for a drive system includes moveable and fixed portions. The moveable portion includes a rectifier stage to rectify an input signal received from a secondary winding of a transformer to provide a rectified signal and an inverter stage having a plurality of switching devices to receive a DC signal and output an AC signal. This moveable portion can be slidably adapted within a cabinet of the drive system. In turn, the fixed portion includes a DC link having at least one capacitor to receive the rectified signal and provide the DC signal to the inverter stage.

Abstract: An apparatus for storing data and supplying stored data. The apparatus comprises a support unit having a plurality of connectors for connecting to a plurality of data storage elements, and a plurality of data storage elements. Each data storage element is connected to one of the connectors. The apparatus also comprises a cable having a first end connected to the support unit and a second end connected to a main part. The main part defining a first space containing a portion of the cable, and a second space for containing the support unit. The support unit is movable between (i) a first position providing access to the data storage elements and (ii) a second position in which the data storage elements are located within the second space. A guide means is configured to cause the cable to develop at least two loops within the first space while the support unit is moved to the second position.

Abstract: A cooling apparatus and method are provided for facilitating cooling of an electronic apparatus that includes a semiconductor element. The cooling apparatus includes an evaporator containing a coolant and evaporating the coolant under a reduced pressure lower than an ambient pressure to generate a chilled coolant, a condenser regenerating the coolant from a vapor of the coolant and being fluid-communicated with the evaporator through a bypass line, and a circulating pump and a line supplying the chilled coolant to a heat exchange area of the electronic apparatus to conduct a heat exchange with an air flow passing though the semiconductor element at a hot side of the electronic apparatus and returning the coolant after the heat exchange to the condenser.

Abstract: Described herein is an apparatus having first and second housings and a driver wheel. The first and second housings are coupled together so that they can be driven by the driver wheel to provide for a plurality of apparatus configurations. The apparatus is configured such that the first and second housings are slidable relative to one another from a first overlapping configuration, in which the first and second housings are substantially overlapping, to a second laterally slid configuration in which the first second housings are laterally slid with respect to one another, and then onto a third tilted configuration in which the first and second housings are tilted relative to one another. The apparatus is also configured such that continuous rotation of the driver wheel drives the movement of the apparatus from the first configuration to the second configuration and then onto the third configuration.

Abstract: A gaming machine includes a first box having inner walls, a second box, a front member, a communicating portion, and an exhausting portion. The front member has side walls, and covers components placed at a front portion of the second box. The front member defines a first space at the front portion. The communicating portion provided at the front portion allows a second space inside the second box to communicate with the first space. The exhausting portion provided in a side wall of the front member allows air sent from the second space to the first space to be discharged. The front member is arranged such that a first distance is smaller than a second distance, where the first distance starts at a first inner wall to finish at a first side wall, and the second distance starts at a second inner wall to finish at a second side wall.

Abstract: A weighing cell for use in an associated receiving holder, wherein the weighing cell and receiving holder are oriented relative to each other by means of alignment elements and through the use of the weighing cell in the receiving holder for the simultaneous production of a detachable, mechanical, and electrical connection to each other.

Abstract: A server cabinet includes a rack and a common power supply received in the rack. The rack defines an interior space configured for accommodating a plurality of servers therein. Each server has an electrical plug at an outer side thereof. The common power supply includes a power input socket and a plurality of power output sockets. The power output sockets are configured to electrically connect to the server electrical plugs, respectively. The common power supply is configured for receiving AC power from an external power source via the power input socket, and converting the AC power to DC power and outputting the DC power to the servers via the power output sockets.

Abstract: An operating unit (1) for installation in an aircraft cabin comprises an operating unit front side (10) and an operating unit rear side (20), at least one operating element (12, 14) attached in the region of the operating unit front side (10) and accessible to a user, and a holding device (40) for attaching the operating unit (1) to a monument (30) accommodating the operating unit (1) in its state mounted in the aircraft cabin.

Abstract: A packaging system for transferring data from an external resource to the packaging system is disclosed. The packaging system includes a package and a computer disposed within the package. The package includes a first passage and a substantially closed interior defined by closure of the first passage. The computer includes a power connection and a communication connection. A second passage of the package is dimensioned and disposed for accessing at least one of the power connection and the communication connection with the computer disposed within the package. The computer is responsive to a supply of power from an external power supply to the power connection via the second passage, and to a communication link between the communication connection and the external resource to initiate a powered state of the computer and to transfer data from the external resource to the computer.

Abstract: A lightweight radio/CD player for vehicular application is virtually “fastenerless” and includes a case and frontal interface formed of polymer based material that is molded to provide details to accept audio devices such as playback mechanisms (if desired) and radio receivers, as well as the circuit boards required for electrical control and display. The case and frontal interface are of composite structure, including an insert molded electrically conductive wire mesh screen that has been pre-formed to contour with the molding operation. The wire mesh provides EMC, RFI, BCI and ESD shielding and grounding of the circuit boards via exposed wire mesh pads and adjacent ground clips. The PCB architecture is bifurcated into a first board carrying common circuit components in a surface mount configuration suitable for high volume production, and a second board carrying application specific circuit components in a wave soldered stick mount configuration.

Abstract: A standalone open frame of an apparatus in one example is configured to support a rack-mount electronic component of a predetermined size selected from any of a plurality of predetermined sizes. The standalone open frame is configured to securely engage the rack-mount electronic component through employment of at least one set of rack-mount adapters that is configured for the predetermined size of the rack-mount electronic component.

Abstract: A cable management system includes a patch panel having a rear connectivity interface configured to connect with cables, and a cable support bracket. The cable support bracket includes a cable support plate configured to support the cables connected to the rear connectivity interface, an arm extending from the cable support plate, and a bias mechanism. The arm includes at least one arm portion mounted to the patch panel and a locking finger movable with respect to the arm portion. The bias mechanism operatively engages the arm portion and the locking finger and is configured to move the locking finger between a biased position and a released position.

Abstract: A computer housing is adapted for receiving a motherboard and at least one electronic component therein, and includes a housing unit and a support board. The housing unit has an opening, and includes at least one first sliding portion that is provided at each of two opposite sides of an inner surface of the housing unit, that extends along a sliding direction, and that is connected to the opening. The support board is adapted for securing the motherboard and the electronic component, and includes a second sliding portion provided at each of two opposite edges of the support board and slidable relative to the first sliding portion in the sliding direction.

Abstract: A system for housing storage devices in an electronic device includes a first drive bracket, a second drive bracket; and a chassis having the first or the second drive bracket installed therein. The first drive bracket defines a plurality of first rooms for accommodating first disk drives therein. The second drive bracket defines a plurality of second rooms for accommodating second disk drives therein. The first disk drives are sized different from the second disk drives.

Abstract: A housing structure of an acoustic controller, in which a lower case of the controller has an increased rigidity and improved moldability. The lower case is integrally formed by a resin and has a bottom surface thereof disposed to face a tabletop surface when the controller is in a stationarily placed thereon. The bottom surface of the lower case is formed to have a concave-forming portion that defines a concave space communicating with the outside of the controller on the left and right sides thereof and which is upward convex as viewed when the controller is stationarily placed, thus increasing the rigidity of the lower case. Bosses and vertical ribs formed to project upward from a horizontal part of the concave-forming portion of the lower case each have a reduced height, thereby improving the moldability of the lower case.

Abstract: A method and system for maintaining an item of equipment supports the provision of predictive maintenance in a manner which eliminates or reduces downtime of the equipment. The method includes tracking performance data on the equipment or a particular component of the equipment. At least one required maintenance activity is predicted based upon the performance data with respect to a defined performance standard. Performance of the required maintenance activity is scheduled at a defined respective time based upon the prediction.

Abstract: A controller 140 of a vehicle-mounted device 100 detects that a tilt/eject button 132a is long and short depressed (step S2), further detects that the long depression is completed (YES in step S4), and controls a motor 141 so that a front face portion 120 operates against a main unit 110 after the long depression is completed (step S5). Therefore, after the long depression of the tilt/eject button 132a is completed, the front face portion 120 on which the tilt/eject button 132a is provided operates against the main unit 110.

Abstract: An integrated mounting system for communication and surveillance infrastructures includes a gantry, a system cabinet, and an interconnecting conduit. The gantry includes a frame configured for housing functional devices (e.g., antennas, video cameras, sensors, photovoltaic panels, and the like) and supporting posts. The system cabinet contains electronic equipment of the functional devices and provides connectivity to land data networks and external sources of power. The system may be installed on a trailer and include autonomous sources of power.

Abstract: Techniques for accessing an enclosure are disclosed herein. In one embodiment, an enclosure is configured for rack mounting. The enclosure includes an access panel disposed in a top surface of the enclosure. The access panel is moveably coupled to the enclosure and configured to provide access to the interior of the enclosure.

Abstract: A computer case including a body, a first rear window, a blocking panel, and a plurality of exchangeable modules is provided. The body has a containing opening. The first rear window is assembled to the body and is located within the containing opening, and the first rear window has a module opening and a blocking panel opening. One of the exchangeable modules is assembled to the first rear window. The blocking panel is assembled to the first rear window and is located within the blocking panel opening, and the blocking panel has a plurality of connector openings.

Abstract: A display unit for displaying information including a housing having an opening and a display unit with a display, moveable between a rest position in which the display unit is completely retracted into the housing and a display position in which the display unit is extended from the housing. A cover is moveably driven between a cover position that covers the housing opening and a release position releasing the housing opening. The display unit and the cover can be moveably driven by way of a coupling assembly by a rotary drive. The coupling assembly couples the motion of the display unit and the cover. The coupling assembly includes a first coupler that can rotate about a fixed first axis of rotation with a free end of hinged to the cover. The display unit is hinged to a free end of a second coupler by a second linkage at the cover and at distances from the first linkage and the second linkage by a third linkage.

Abstract: Systems and methods for reducing problems and disadvantages associated with attaching portions of equipment chassis to the remainder of the equipment are provided. An information handling system may include a housing, a cover configured to at least partially enclose the housing, and an engagement assembly fixedly coupled to the housing. The cover may include an open slot having an opening and a projection. The may have a bearing movable relative to the housing, the bearing configured, when moved, to pass through the opening to engage with the projection to couple the cover to the housing.

Abstract: An improved smart card is provided, which is adapted for easy extraction from a smart card socket, or example, in a mobile telephone. Facilitating the easy extraction is a structural deviation in the plane of at least one of the sides of the smart card to enable an increase of an external force on the smart card to thereby cause the extraction of the smart card from a socket. The structural deviation may be a change in the thickness of the smart card or a roughened surface in the smart card's enclosure. The smart card may be a SIM card. Also provided is a method of extracting a smart card from a socket, which method may include the steps of engaging a structural deviation in the plane of at least one side of the smart card's enclosure and applying a force to the engaged structural deviation.

Abstract: An external heat dissipation device includes a housing, a circuit board placed in the housing, a fan electrically connected to the circuit board, and a wire electrically connected to the circuit board to power the fan. The housing includes an installation dock defining a receiving space for receiving the fan therein, and an insertion portion extending from the installation dock. A through hole is defined in the installation dock. An air passage is defined in the insertion portion. The fan includes a casing defining a first air hole communicating with the through hole and a second air hole communicating with the air passage.