Patent ID: 7885071

Claim:
A heat dissipation arrangement for a communication chassis, comprising: a chassis body defining an inner receiving space and being divided into at least one heat receiving portion and at least one heat dissipation portion, wherein the heat receiving portion is provided with at least one first raised area for contacting with at least one heat-producing element and forming a hot zone at the first raised area wherein the receiving space has at least one machine board held therein and the at least one heat-producing element is provided on the machine board; at least one first heat pipe set being installed on the chassis body in the receiving space to extend between and connect to the heat receiving portion and the heat dissipation portion for transferring heat absorbed by the heat receiving portion to the heat dissipation portion; at least one thermal module consisting of a plurality of radiating fins and at least one second heat pipe, the second heat pipe being extended between and connected to the chassis body and the radiating fins, allowing heat transferred to the chassis body to be further transferred to the thermal module and dissipated into ambient air; and at least one support element and at least one heat-conducting element, the at least one support element being located in the receiving space of the chassis body for supporting the at least one machine board thereon, the at least one heat-conducting element being arranged between two adjacent machine boards, the heat-conducting element being provided on two opposite faces with at least one second raised area each, and the second raised areas contacting with the heat-producing elements on the two machine boards to form hot zones at the second raised areas.