摘要:
A heat dissipation device includes a heat conducting base, a heat sink on the base and two heat pipes thermally contacting with the heat sink and the base. The heat sink is made of metal extrusion and includes a heat conducting cylinder at a periphery of the heat sink and a plurality of fins extending from and surrounded by the cylinder. The cylinder includes four interconnected sides. The fins of the same side are parallel to each other. The two heat pipes thermally surround the cylinder of the heat sink and wholly contact the heat sink.
摘要:
A heat dissipation device includes a heat conducting base, a heat sink on the base and two heat pipes thermally contacting with the heat sink and the base. The heat sink is made of metal extrusion and includes a heat conducting cylinder at a periphery of the heat sink and a plurality of fins extending from and surrounded by the cylinder. The cylinder includes four interconnected sides. The fins of the same side are parallel to each other. The two heat pipes thermally surround the cylinder of the heat sink and wholly contact the heat sink.
摘要:
An exemplary heat dissipation device includes a base plate, two fin groups, a core, a fan holder coupled to a top of the core, a fan located over the fin groups and secured by the fan holder, and two heat pipes. The two fin groups cooperate to define a central hole in a center thereof and have a plurality of fins extending radially and outwardly from the central hole. The core is placed on the base plate and received in the central hole. Each heat pipe comprises an evaporation section sandwiched between the core and the base plate, an arc-shaped condensation section sandwiched between the two fin groups and an adiabatic section connecting the evaporation section and the condensation section.
摘要:
A wireless terminal operating in TDD mode transmits a plurality of sounding reference signals using an assigned maximum sounding reference signal (SRS) bandwidth (BW) size. At least one of the sounding reference signals is transmitted in a corresponding uplink pilot time slot (UpPTS) region of a special sub-frame of a radio frame wherein, in the frequency dimension, an uplink BW center is misaligned with a BW center of the SRS in the UpPTS region, a maximum SRS BW size in the UpPTS region is an even number of resource blocks with prime factors from a set of {2, 3, 5}, and the maximum SRS BW having a size in number of resource blocks less than or equal to (NRBUL−6·NRA) where NRA is a number of Random Access Channel (RACH) opportunities in the UpPTS region.
摘要:
An exemplary connector includes a main body and a block engaged with the main body. The main body includes a central plate, a first extension plate extending downwardly from a lateral side of the central plate, and a second extension plate extending upwardly from an opposite lateral side of the central plate. Two riveting holes are defined through the central plate. The block includes a first securing plate and a second securing plate extending from the first securing plate and attached to the central plate of the main body. Two pins extend from the second securing plate and are punched to be engagingly received in the rivet holes of the central plate to engage with the main body.
摘要:
A heat dissipation device dissipating heat from a heat-generating electronic element, includes a canister filled with a phase-changeable working fluid, a housing hermetically fixed to a top of the canister and communicating with the canister, a fan located above a top of the housing, an impeller comprising a driving member received in the housing and an axle which extends through a center of the driving member. The axle has a lower end extending downwardly through a bottom of the housing to a center of the top of the canister and an upper end extending upwardly through a top of the housing to engage the fan. The working fluid is heated by the heat-generating electronic element and vaporized into the housing to engage the driving member to rotate and drive the fan to rotate synchronously.
摘要:
An electronic system such as a computer system includes a casing defining an opening at a side thereof, a motherboard arranged in the casing, a hard disk located at a side of the motherboard and a heat dissipation structure covering the opening of the casing. The motherboard includes a printed circuit board facing toward the opening of the casing, first electronic components and second electronic components mounted on the printed circuit board and facing toward the opening. The heat dissipation structure includes a base engaging with the casing and fins extending from the base and outside of the casing. The base includes a first engaging portion contacting the first and second electronic components and a second engaging portion contacting the hard disk. The first engaging portion and the second engaging portion are in different levels from each other.
摘要:
A heat dissipation device includes a base, a fin group, a plurality of heat pipes connecting the base and the fin group, a fan cover covering the fin group and a fan located at a side of the fan cover. The heat pipes are received in the base and extend through the fin group. The heat pipes are received in two opposite sides of the fin group and sandwiched between the fan cover and the fin group. The fan cover includes a body and a pair of side walls extending from the body. The side walls each include a plurality of heat-dissipating fins formed on an outer surface thereof for increasing heat dissipating surface of the heat dissipating device.
摘要:
A programmable interconnect network for an array of logic cells. Said interconnect network has a plurality of switch boxes being connected in a tree structure and providing connections to its logic cells, switch boxes located at the lowest level of the tree structure are connected to logic cells; said interconnect network also has peripheral switch boxes, of which at least one is connected to an external logic. Also, an integrated circuit comprising an FP array of logic cells connected by the said programmable interconnect network and a mask programmable (MP) logic array.
摘要:
A heat dissipation device adapted for cooling an electronic device mounted on a printed circuited board includes a heat spreader thermally contacting the electronic device, a fin assembly comprising a plurality of fins, a first heat pipe interconnecting the fin assembly and the heat spreader and a plurality of supporting posts inserted in the fin assembly.