Patent ID: 8469533

Claim:
A water-cooling heat dissipation system for LED signboard, comprising: a frame comprising a first sidewall, a second sidewall, a third sidewall and a fourth sidewall, the frame connected to a plurality of heat receiving sections; and a plurality of LED modules mounted to the plurality of heat receiving sections, respectively; the plurality of heat receiving sections being in contact with the plurality of LED modules in one-to-one correspondence; at least one water pipe system having at least one water pipe, and the at least one water pipe being extended through at least one heat receiving section; at least one water-cooling unit being correspondingly connected to the at least one water pipe system, and including at least one water inlet pipe and at least one water outlet pipe; the water inlet pipe and the water outlet pipe being connected to a front end and a rear end of the water pipe system, respectively, and the water-cooling unit driving a cooling liquid stored therein to circulate in between the water pipe system and the water-cooling unit to carry heat away from the at least one heat receiving section; wherein the sidewalls of the frame are connected via fixing elements to the heat receiving sections adjacent the sidewalls; wherein any two adjacent heat receiving sections are connected to each other via a fixing element; and wherein the fixing elements are heat pipes for transferring heat from one heat receiving section to other heat receiving sections adjacent thereto and from heat receiving sections adjacent the sidewalls of the frame to the frame, from which the heat is dissipated into surrounding environment.