ventilator
An exhaust fan and blower technology, applied in ventilation systems, space heating and ventilation, heating methods, etc., can solve the problems of high energy consumption of air conditioners, poor cooling effect of air coolers, and high power consumption, so as to improve utilization rate and structure Simple, battery-saving effect
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Embodiment 1
[0021] Such as figure 1 , figure 2 A kind of exhaust fan shown, comprises bellows 1, is arranged on blower bracket 2 and control box 3 outside bellows 1, and blower bracket 2 is provided with blower 4, and the tuyere of blower 4 communicates with bellows 1 interior; Bellows 1 is provided with There is an air outlet 5 matching the air nozzle of the blower 4, the air outlet 5 and the air nozzle of the blower 4 are located on the same horizontal line in the bellows 1, and the air outlet 5 is tangent to the outer contour of the bellows 1; The rotating shaft 7 is provided with a drum 8 on the rotating shaft 7, and twelve blades 9 are evenly distributed on the surface of the drum 8, and the wind blade 9 is a concave curved surface on the upwind side, and an arc surface on the downwind side; both sides of the drum 8 are provided with There are reinforcing ribs 6, one end of the reinforcing ribs 6 is located at the inner ring of the drum 8, and the other end extends along the concav...
Embodiment 2
[0024] Such as image 3 A kind of exhaust fan shown, comprises bellows 1, control box 3, two blower brackets 2 that are respectively arranged on the front and rear sides of bellows 1 correspondingly, two blower brackets 2 are all provided with blower 4, two blower 4 The air nozzles are all communicated with the inside of the bellows 1; the bellows 1 is provided with two air outlets 5 respectively matched with the air nozzles of the two blowers 4, and the two air outlets 5 are located in the bellows 1 with the corresponding air nozzles of the blower 4 On the same horizontal line, the two air outlets 5 and the air nozzle of the blower 4 are located on the same horizontal line in the bellows 1, and the two air outlets 5 are all tangent to the outer contour of the bellows 1; the bellows 1 is provided with a rotating shaft 7, the rotating shaft 7 is provided with a drum 8, the surface of the drum 8 is evenly distributed with twelve blades 9, the upwind side of the blade 9 is a conc...
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