Cooling fan structure applied to generator
A technology for cooling fans and generators, which is applied to components of pumping devices for elastic fluids, machines/engines, liquid fuel engines, etc., and can solve the problems of small air volume, only cooling, and poor cooling effect.
Active Publication Date: 2019-02-12
江苏惍鼎机械制造有限公司
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Problems solved by technology
[0004] The current air-cooling method is mainly to install the fan on the rotor shaft inside the front cover. When the generator is running, the wind enters from the rear cover and flows to the fan through the internal gap of the generator, and then flows out from the ventilation hole of the front cover. Structural problems, on the one hand, the air volume is generally too small, the cooling effect is not good, on the other hand, the air can only flow inside the generator, so it can only cool the internal temperature of the generator, and the cooling effect is affected
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[0025] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0026] In order to achieve the purpose of the present invention, as Figure 1-4 As shown, in some embodiments of the cooling fan structure applied to the generator of the present invention, a plurality of blades 2 are arranged on the skeleton 1, and the plurality of blades 2 spirally enter from the outer ring 11 of the skeleton 1 toward its center, and The height of the blade 2 gradually decreases from the outer ring 11 of the skeleton 1 to its center, and a central recess 21 is formed on the skeleton 1 by the blade 2 , and the rotation output part 3 of the generator is connected in the central recess 21 .
[0027] Through the central depression 21 formed by the spirally arranged blade 2 at the center of the frame 1, when the fan rotates, the air in the center of the fan flows out to the surroundings of the fan under the action of centrifugal...
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The invention discloses a cooling fan structure applied to a power generator. The cooling fan structure applied to the power generator comprises a formwork and a plurality of blades. The blades spirally enter the center of the framework from the outer circle of the framework, and the height of each blade is gradually decreased from the outer circle of the framework to the center of the framework. A central concave part is formed on the framework through the blades, and a rotary output component of the power generator is connected to the central concave part. According to the cooling fan structure applied to the power generator, on the one hand, the air volume of a fan can be increased; and on the other hand, part of wind which continuously circulates in the center of the fan and on the periphery of the fan can enter the power generator, certain negative pressure can be formed on the periphery of the fan when the wind in the center of the fan flows out of the fan, and the wind on the periphery of the fan flows towards the center of the fan at the same time, so that wind outside the power generator is driven to flow to cool the exterior of the power generator, and accordingly both the interior and the exterior of the power generator can be cooled.
Description
technical field [0001] The invention relates to a cooling fan, in particular to a cooling fan structure applied to a generator. Background technique [0002] The heating of the generator is an important problem that has been plaguing generator manufacturers. The reasons for the heating of the generator are mainly the following three reasons: 1. Mechanical friction heating, because the generator is composed of the stator and the rotor. If the rotation generates electricity, during the rotation process, the installation surface and the mechanical wear surface of the support machine will generate heat; 2. When the current passes through the stator and rotor conductors, heat will be generated; 3. Since the stator and rotor are made of ferromagnetic materials, Ferromagnetic materials generate heat generated by eddy currents in a magnetic field. During the use of the generator, if the heat is not dissipated in time and quickly, it will cause the heat to accumulate around the gene...
Claims
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IPC IPC(8): F04D29/28F04D29/30
Inventor 陈万中徐士祥高飞徐士国
Owner 江苏惍鼎机械制造有限公司