摘要:
The failure of a data center liquid cooling system can result in a rapid temperature rise in electronic components that may either damage a component, result in the loss of data housed within the component, or both. A supplemental liquid cooling system is placed within each rack serviced by a data center cooling system to mitigate such a failure. Coolant flow is monitored to determine whether the data center liquid cooling system has, for a particular rack, failed. Upon determination of failure, the supplemental liquid cooling system is initiated to reduce the thermal rise of the electronic components within the rack allowing them to conduct an organized and complete shutdown.
摘要:
An optical disk drive of the type adapted to use an optical disk cartridge formed by an optical disk mounted about a hub within an enclosure. When inserted into the optical disk drive, the cartridge is received and supported by a pan. A control handle for controlling the disk drive can be rotated between a load position, a run position, a spin-down position, and an eject position. The handle is coupled to the pan by a linkage. When the handle is rotated to either its run or spin-down positions, the linkage positions the pan at a run/spin-down position at which the hub of the disk is engaged with a drive spindle. When rotated to either its load or eject positions, the linkage causes the pan to be in a load/eject position at which the cartridge can be inserted into or removed from the pan. The position of the handle is detected by optical sensors which provide signals representative thereof to control circuitry. The control circuitry activates a drive motor when the handle is in its run position, and deactivates the drive motor when the handle is moved to its spin-down position. A spin-down interlock mechanism is interfaced to the control circuitry and permits the handle to be rotated from the run position back to the load and eject positions only after a predetermined spin-down time period has elapsed after the handle has been rotated to the spin-down position. The cartridge is ejected from the disk drive when the handle is rotated to its eject position.
摘要:
An optical disk cartridge has two opposed cartridge sections held together by four locking assemblies. Each locking assembly includes a first locking jamb attached to one section, a second locking jamb attached to the other section, a locking detent and a spring. The jambs can be locking fingers parallel to and adjacent to one another when the cartridge sections are joined, in which case the detent surrounds the fingers as a sleeve, preventing the fingers from moving apart. The spring biases the detent into locking engagement with the fingers, keeping the cartridge closed. Alternatively, the jambs can be aligned slots in the cartridge top and bottom sections, with each detent having a protrusion that enters its associated slots. The spring and most of the detent are contained inside the cartridge. However, each detent includes a leg extended outside the cartridge through an aperture in the cartridge side wall. Also disclosed is a drive apparatus for use with the cartridge. Upper and lower rails mounted inside the housing contact flanges of the cartridge to guide the cartridge during its insertion into the drive. Stops in the housing contact the detents during insertion and move them out of locking engagement with their respective locking jambs. Following insertion, a movable platform in the housing is lowered, separating the cartridge sections from one another and moving the disk into drivable engagement with a drive spindle in the housing. Subsequently the platform can be raised to disengage the disk from the spindle and reunite the cartridge sections.
摘要:
An equipment module for holding printed circuit boards. The equipment module contains pin and slot combinations which permit it to be lifted from a casing and tilted for efficient access to the printed circuit boards for maintenance. The pin and slot combinations comprise a plurality of slots molded into the sides of the equipment module for cooperation with pins mounted on the casing.
摘要:
A thermal transfer apparatus for cooling a heat-producing electronic component includes an evaporator disposed over the heat-producing electronic component and thermally coupled to the heat-producing electronic component, a plurality of heat pipes carrying a working fluid therein disposed over the evaporator and thermally coupled to the evaporator, a cold plate thermally coupled to a first end of the plurality of heat pipes, and a condenser thermally coupled to a second end of the plurality of heat pipes. The heat pipes extend over the evaporator such that the first end and the second end of the heat pipes couple to the cold plate and condenser at a location not over the heat-producing electronic component. The cold plate and the condenser are supplied with a coolant from outside the thermal transfer apparatus.
摘要:
A thermal transfer apparatus for cooling a heat-producing electronic component includes an evaporator disposed over the heat-producing electronic component and thermally coupled to the heat-producing electronic component, a plurality of heat pipes carrying a working fluid therein disposed over the evaporator and thermally coupled to the evaporator, a cold plate thermally coupled to a first end of the plurality of heat pipes, and a condenser thermally coupled to a second end of the plurality of heat pipes. The heat pipes extend over the evaporator such that the first end and the second end of the heat pipes couple to the cold plate and condenser at a location not over the heat-producing electronic component. The cold plate and the condenser are supplied with a coolant from outside the thermal transfer apparatus.
摘要:
A leader block is provided for connection to a free end of storage tape media. The leader block includes a main body and a clamp member. The main body and clamp member define a space for receiving the free end of the storage tape media. A punch member is joined to the clamp member. The main body, the clamp member and the punch member are parts of a single, integral device that is preferably made by molding. After the storage tape media is inserted into the receiving space between the main body and the clamp member, the clamp member is caused to move relative to the main body by applying sufficient, predetermined shear forces. The punch member is also caused to move relative to the clamp member. The storage tape media is sandwiched between the main body and the clamp member using forces provided by the punch member and clamping forces caused by the main body and the clamp member.
摘要:
The improved magnetic tape cartridge includes a leader block retainer mechanism that provides a positive locking function to automatically secure the leader block in place in the opening of the magnetic tape cartridge housing. The leader block retainer mechanism comprises detent members springably attached to both the top and bottom sides of the housing, juxtaposed to the opening, to engage corresponding features on the leader block to resist withdrawal of the leader block from the housing.
摘要:
A drive belt release mechanism for magnetic disk drives for disengaging a drive belt from and engaging a drive belt onto a spindle drive pulley. To disengage the belt, the mechanism lifts the belt from the drive pulley and simultaneously permits the drive motor to pivot to relieve the tension in the drive belt. To engage the belt, the mechanism seats the belt on the pulley and forces the motor to a drive position which yields the desired drive tension in the belt. The mechanism is completely mechanical and manually operable.
摘要:
A multiple disk drive storage apparatus that receives a plurality of removable disk drive modules. The removable disk drive modules comprise a disk drive and a carrier body. The carrier body is molded in one piece and may have a latch, an ejection spring, a light pipe, and a cavity for receiving the disk drive. The disk drive is retained in the cavity with a snap-fit connection.