Electrostatic air-cooled heat sink

Abstract

An electrostatic air-cooled heat sink has a frame, a power controller, a sharp electrode with a sharp electrode portion, a through-hole, a guide frame, a half-bowl blunt electrode assembly and flow-through portion. The electrostatic air-cooled heat sink features a simple and lightweight structure, making it suitable for mass production and beat radiation with better applicability and industrial benefits.

1 . An electrostatic air-cooled heat sink comprising:
 a frame, made of solid insulating materials to form a hollow framework, comprising of a first opening, a second opening, and a holding space located between the first and second openings;   a power controller, assembled onto the frame for controlling the power supply state;   a sharp electrode (corona electrode), made of conducting materials and integrally located at the first opening of the frame; said sharp electrode is provided with at least a sharp electrode portion, which is folded and protruded towards the holding space; a first power feed portion is set on the sharp electrode and electrically connected with the power controller;   at least a through-hole, formed correspondingly to the sharp electrode portions of the sharp electrode; and ribs are formed at periphery of said through-hole;   a guide frame, assembled into the holding space of the frame; made of conducting materials, the guide frame is provided with guide plates arranged at interval; a guide channel is formed between the guide plates, and both ends of the guide channels are oriented separately towards the first and second openings; one end of the guide channel facing the first opening is located opposite to the sharp electrode portion of the sharp electrode; insulating configuration between the guide frame and sharp electrode is required; a second power feed portion is set onto the guide frame and electrically connected with the power controller;   a half-bowl blunt electrode assembly, set onto the guide plate of the guide frame in a manner that at least a half-bowl blunt electrode unit is integrally formed at one end of the guide plate facing the first opening, and the other half-bowl blunt electrode unit is formed correspondingly to the guide plate; so said half-bowl blunt electrode assembly comprise of these two half-bowl blunt electrode units set at interval;   a flow-through portion, formed by a space set between two half-bowl blunt electrode units; and said flow-through portion must be connected with the guide channel between the guide plates as well as the through-hole formed by the sharp electrode;   of which, the end of the sharp electrode portion formed by the sharp electrode is located correspondingly to the center of the half-bowl blunt electrode assembly, and a spacing is kept between two half-bowl blunt electrode units.   
     
     
         2 . The device defined, in  claim 1 , wherein said sharp electrode is made of a metal plate, and the sharp electrode portion is made of a triangular plate formed by partially punching into a folding pattern. 
     
     
         3 . The device defined in  claim 1 , wherein said sharp electrode is of a plate-like metal mesh pattern, and the sharp electrode portion is of a spike structure formed by folding of the metal mesh unit. 
     
     
         4 . The device defined in  claim 2 , wherein the through-holes formed by the sharp electrode are of a square or rectangular pattern, while the ribs are of a pigsty or mesh pattern. 
     
     
         5 . The device defined in  claim 4 , wherein the first power feed portion on the sharp electrode and the second power feed portion on the guide frame are of a flanged pattern, and also protruded laterally at opposite position. 
     
     
         6 . The device defined in  claim 5 , wherein said electrostatic air-cooled heat sink is arranged close to an existing heating source or thermal conductive device, so as to yield air exhaust and heat radiation effect without need of exhaust fan.