Exhaust blower with outlet air guiding plate
A technology of a deflector and an exhaust fan, which is applied to the components of the pumping device for elastic fluids, mechanical equipment, machines/engines, etc. Countercurrent phenomenon, the effect of improving operation efficiency
Inactive Publication Date: 2013-01-16
NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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Problems solved by technology
When the internal wind resistance of the chassis is too large, the inward flow overwhelms the outward flow, and the phenomenon of tank inversion will occur at this time, which will seriously affect the heat dissipation effect. See figure 1
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[0011] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0012] root tree figure 2 , image 3 As shown, an exhaust fan with an air outlet deflector includes a deflector 1, the deflector 1 is the outer frame of the fan stator, and the shape of the deflector 1 is a trumpet shape whose diameter changes from small to large, with the smallest diameter The position is consistent with the fan impeller 6, and the largest diameter is slightly greater than or equal to the diameter of the fan wind tunnel;
[0013] An exhaust fan with an air outlet deflector, comprising a deflector 1, a motor 2, a bracket 3, blades 4, a casing 5, an impeller 6 and the like. The shafts at both ends of the motor 2 are respectively connected to the deflector 1 and the impeller 6 , the deflector 1 is connected to the support 3 , the support 3 is connected to the casing 5 , and the impeller 6 is provided with a plurality of blades 4 .
[0014] The plura...
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An exhaust blower with an outlet air guiding plate includes a guiding plate (1), a motor (2), a bracket (3), blades (4), a casing (5) and an impeller (6), wherein the two end axles of the motor (2) are connected with the guiding plate (1) and the impeller (6) respectively; the guiding plate (1) is connected with the bracket (3); the bracket (3) is connected with the casing (5); and the plurality of blades (4) are arranged on the impeller (6). The exhaust blower has the advantages that a guiding plate type stator outer frame is adopted to replace the traditional equal-diameter cylindrical stator outer frame, so as to change the fluid direction at an outlet of an axial-flow blower and change the axial parallel flowing direction into the peripheral radial horn-shaped flowing direction, as a result, the counter current at an axle core area of the axial-flow blower can be avoided, the eddy current problem in front of the outlet of the axial-flow blower impeller can be solved, the outlet resistance can be reduced, and the operation efficiency of the exhaust blower can be improved.
Description
technical field [0001] The invention relates to the field of fan technology, in particular to an exhaust fan with an air outlet deflector. Background technique [0002] Axial flow fans are the most commonly used and most common cooling devices for electronic equipment. Using axial flow fans to extract air and dissipate heat is the simplest and most effective method for electronic equipment. The method of exhaust cooling is usually to install an axial flow fan at the air outlet of the chassis (cabinet). The cold air outside the box is caused to flow into the box through the air inlet at another part of the box, so as to complete the exchange of cold and hot air and realize heat dissipation. Since the motor is installed in the central area of the axial flow fan, it occupies a large cross-section. Usually the ratio of the shaft core to the cross-section of the air cylinder is above 0.5. When the fan blades rotate, negative pressure is generated in the air cylinder. Due to ...
Claims
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IPC IPC(8): F04D29/54
Inventor 严红李强
Owner NO 709 RES INST OF CHINA SHIPBUILDING IND CORP