Breathing machine and blower fan noise reduction device thereof
A ventilator and blower technology, applied in the field of ventilators, can solve the problems of high noise, achieve low wind resistance, reduce friction noise and impact noise, and facilitate assembly
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[0023] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0024] Such as figure 1 As shown, the fan noise reduction device applicable to ventilators provided by the present invention includes an upper shell 1 , a fan shock absorber 3 , a lower shell 4 and an air outlet rectifying device 5 . The centrifugal fan 2 of the ventilator is installed in the fan shock absorber 3, and the fan shock absorber 3 is clamped between the upper shell 1 and the lower shell 4, and the air outlet rectifying device 5 is installed in the upper shell 1 and the lower shell 4. On the air outlet formed by cooperation of the lower shell 4, it is positioned through the card slot and locked by screws. The fan shock absorber 3 is arranged between the upper shell 1 and the lower shell 4 to isolate the cavity formed by the u...
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