Wind shield for reducing noise and cooling fan with same
A technology of cooling fan and air shroud, applied in the direction of engine cooling, engine components, machine/engine, etc., can solve the problem of poor broadband noise reduction effect, and achieve the effect of reducing broadband noise
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[0024] Example of a windshield
[0025] Such as Figure 4 The windshield shown includes a base 1 , a ring body 2 and a resonant sound-absorbing structure 3 . The whole windshield is connected together with the radiator through the bolt holes on the base 1, and is fixed on the vehicle frame (as other implementations, the base 1 can also be connected with the existing The way commonly used in technology realizes the fixed connection with radiator).
[0026] The base 1 is provided with a fan port for the fan to be embedded, and a ring body 2 is arranged around the fan port (the ring body 2 can be installed and fixed with the base, or integrally formed with the base), and the inner side of the ring body 2 is connected with the front end of the fan (i.e. A resonant sound-absorbing structure 3 is provided in the space between the tops of the fan blades.
[0027] Such as Figure 5 As shown, the outermost side of the resonant sound-absorbing structure (near the fan side) is a laye...
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