Abstract: A heat sink for dissipating heat of a heat-generating element on a circuit board includes a base, a linear fastener and a heat-dissipating fin set. The linear fastener includes a fixing section disposed on the base and an engaging section extending from the fixing section. The engaging section extends out of the base to be fixed on the circuit board. The heat-dissipation fin set is combined on the base and has stamped fins. The bottom of a portion of the stamped fins is provided with a receiving means at a position corresponding to the fixing section. The fixing section is disposed in the receiving means and clamped between the heat-dissipation fin set and the base. The linear fastener is used to combine the heat-dissipating fin set on the circuit board to increase the heat-dissipating efficiency of the heat sink to the heat-generating element.

Abstract: A heat sink configured for heat dissipation of a heat-dissipating element on a circuit boards includes a base, a linear fastener and a heat-dissipating fin set. A surface of the base is provided with a groove. The linear fastener includes a fixing section and an engaging section bent to extend from the fixing section. The fixing section is disposed in the groove. The engaging section protrudes out of the base to be fixed onto the circuit board. The heat-dissipating fin set is constituted of a plurality of stamped fins engaged with each other. The heat-dissipating fin set is combined on the base to press the fixing section, thereby clamping the fixing section between the heat-dissipating fin set and the base. The linear fastener makes the heat-dissipating fin set to be combined on the circuit board, thereby increasing the heat-dissipating efficiency of the heat sink.

Abstract: A portable speaker assembly having a first driver coupled to a first portion of a telescoping enclosure and a second driver coupled to a second portion of the telescoping enclosure. The telescoping enclosure is movable between a first position and a second position and has an intermediate portion extending outwardly from the first portion and having a telescopically nesting engagement with a second portion. The intermediate portion is able to move telescopically relative to the second portion along a longitudinal axis of the enclosure. The second portion has at least one predetermined void adjacent to the telescopic connection of the intermediate portion with the second portion.