Air duct for ventilator
A new fan and air duct technology, applied in the direction of pipeline layout, noise suppression, etc., can solve the problems of difficult cleaning, secondary pollution of the room, etc., and achieve the effect of improving mute effect, strong acceleration effect and increasing air volume.
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Embodiment 1
[0033] This embodiment discloses an air duct for fresh air fans, including a quiet air duct 16 and a spiral air duct 17, and the spiral air duct 17 adopts a spiral design. The spiral is a constant velocity spiral. The spiral air duct 17 adopts a section on the spiral, and the angle difference between the starting point and the end point of this section is 190°. The silent air duct 16 is a protrusion on the side wall of the fresh air machine. There are two connection points between the silent air duct 16 and the side wall, which are point A and point B respectively. Point A connects the silent air duct 16 and the spiral air duct 17 at the same time. The highest point of the protrusion is point C, and the line AB is a straight line , make a vertical line from point C to line AB to form point D, the length of CD is X, the width of the fresh air machine is U, X:U is 1:4, the length of BD is Z, the length of AD is Y, and the length of the fresh air machine is The height is V, (Z+...
Embodiment 2
[0039] This embodiment discloses an air duct for fresh air fans, including a quiet air duct 16 and a spiral air duct 17, and the spiral air duct 17 adopts a spiral design. The spiral is a constant velocity spiral. The spiral air duct 17 adopts a section on the spiral, and the angle difference between the starting point and the end point of this section is 260°. The silent air duct 16 is a protrusion on the side wall of the fresh air machine. There are two connection points between the silent air duct 16 and the side wall, which are point A and point B respectively. Point A connects the silent air duct 16 and the spiral air duct 17 at the same time. The highest point of the protrusion is point C, and the line AB is a straight line , make a vertical line from point C to line AB to form point D, the length of CD is X, the width of the fresh air machine is U, X:U is 1:4.5, the length of BD is Z, the length of AD is Y, and the length of the fresh air machine is The height is V, (...
Embodiment 3
[0045] This embodiment discloses an air duct for fresh air fans, including a quiet air duct 16 and a spiral air duct 17, and the spiral air duct 17 adopts a spiral design. The spiral is a constant velocity spiral. The spiral air duct 17 adopts a section on the spiral, and the angle difference between the starting point and the end point of this section is between 210°. The silent air duct 16 is a protrusion on the side wall of the fresh air machine. There are two connection points between the silent air duct 16 and the side wall, which are point A and point B respectively. Point A connects the silent air duct 16 and the spiral air duct 17 at the same time. The highest point of the protrusion is point C, and the line AB is a straight line , make a vertical line from point C to line AB to form point D, the length of CD is X, the width of the fresh air machine is U, X:U is 1:5, the length of BD is Z, the length of AD is Y, and the length of the fresh air machine The height is V...
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