Computer is a necessary electronic information product for modern people.It is an era when almost everyone has one computer.The operation of computer depends on the central processing unit.During the operation, high temperature will be generated.However, if the high temperature is not generated, the operation of computer will be unstable.Therefore, a heat dissipation device (heat dissipation fan) is usually installed on the central processing unit to dissipate the generated high temperature.Therefore, the design of the blades in the heat dissipation fan is closely related to the stability of the execution of the central processing unit of computer. As for the design of heat sink, how to make the high temperature generated by CPU achieve the best heat dissipation effect under the operation of fan is a very important problem when using computer and operating.

The invention relates to a double-suction centrifugal computer heat dissipation fan idea.the computer heat dissipation fan mainly comprises a base, a heat dissipation fan and a cover body, wherein:the center of the base is provided with an accommodating groove for the heat dissipation fan to be correspondingly arranged, and one side of the base is provided with an air outlet; the heat dissipation fan is provided with double-row blades, and the cross sections of the blades are all in an s-arc diversion curve, so that the flow of wind can be improved; And the number of outer blades is more; The inner blades are directly and smoothly connected with part of the outer blades, and the bottoms of all the outer blades are fixed on a ring.When the computer cooling fan of the scheme is operated, the wind can be led out of the computer fan without generating a retention area, and the air flow guiding speed can be smoother and faster. The inner blade can not only provide pressurization but also provide very good support. Due to the strong structural rigidity of the scheme, the vanes have a flow guiding effect, and the air flow sucked by the two sides is not obstructed by the partition plate, so the scheme has the effects of high flow rate, high efficiency and relatively low noise.