초록 ▼

Operational heat generated by an electronic component in the base housing of a notebook computer is transferred to the back wall of its display housing for dissipation to ambient by a heat pipe disposed in the base housing and having an evaporator portion in thermal contact with the heat-generating

Operational heat generated by an electronic component in the base housing of a notebook computer is transferred to the back wall of its display housing for dissipation to ambient by a heat pipe disposed in the base housing and having an evaporator portion in thermal contact with the heat-generating component, and a spreader plate structure formed from multiple thin metal layers. The spreader plate structure has a heat dissipation portion disposed within the display housing and held in thermal contact with its back wall, a pickup region disposed in the base housing and held in thermal contact with a condensing portion of the heat pipe, and a bendable dynamic portion positioned between the heat dissipation and pickup portions and extending through the lid hinge area of the computer. Each metal sheet in the dynamic region has a thin layer of a plastic material secured to its opposite sides and serving to reinforce the sheet and prevent abrasive rubbing between facing metal sheets during bending thereof as the display housing is pivotally opened and closed. Operating heat from the component is transferred to the lid housing back wall sequentially through the heat pipe and the pickup, dynamic and spreader portions of the plate structure.

대표청구항 ▼

[ What is claimed is:] [15.] A portable computer comprising:a base housing having a heat-generating component disposed therein;a lid housing;a hinge structure supporting said lid housing on said base housing for pivotal movement relative thereto between open and closed positions; andheat dissipation

[ What is claimed is:] [15.] A portable computer comprising:a base housing having a heat-generating component disposed therein;a lid housing;a hinge structure supporting said lid housing on said base housing for pivotal movement relative thereto between open and closed positions; andheat dissipation apparatus for transferring operating heat from said heat-generating component to said lid housing for dissipation to ambient, said heat dissipation apparatus including:a plate structure formed from a heat conductive material and having a first portion disposed in said base housing, a second portion disposed in said lid housing in thermal communication therewith, and a bendable third portion interconnecting said first and second portions of said plate structure and extending generally through said hinge structure, said bendable third portion being formed from a stacked plurality of relatively movable metal sheet members having a flexible protective film material positioned between facing side surfaces thereof to prevent metal-to-metal rubbing contact between said facing side surfaces during bending of said third portion, anda thermosyphoning heat pipe disposed in said base housing and having a condensing portion in thermal communication with said first portion of said plate structure, and an evaporating portion in thermal communication with said heat-generating component.