| 摘要 |
A novel plate fin heat exchanger adapted for high and low velocity fluid flo ws for dissipating heat from a heat generating component. The heat exchanger comprises an array of fins being affixed to and in thermal communication with a thermally conducti ve base, wherein the fins are arranged in a fan tail configuration for minimizing flow bypass , and further providing reduced thermal resistance for fluid passing through the fin field . The fins are affixed to and in thermal communication with the base at an acute angle, such that t he effective width of the array of fins exceeds the width of the base. The enlarged effective widt h of the fin array in comparison to conventional heat exchanger provides an increased volume for fluid flow, thereby allowing a greater volume of fluid to enter the fin field and a greater surface area of plate fins for cooling the fluid passing through the heat exchanger. In addition, the heat exchanger comprises a fin density of at least ten fins per inch or greater of base length thereb y providing a narrow channel heat exchanger with a fan tail. The aspect ratio of the individual channels between the fins, as compared to parallel fins affixed perpendicular to the base through an extrusion method, generates a reduced pressure drop across the heat exchanger. Accordingly, th eheat exchanger of the present invention expands the envelope of cooling performance provided b y fluid flow over an array of thermally conductive plates. |
