CN215572400U - Air duct - Google Patents

Abstract

The utility model discloses an air duct, wherein a spinning mounting surface (1) is additionally arranged on the air duct, an air inlet end of the air duct is provided with a rotary edge section (2), an inclined edge section (4) is bent inwards along the length direction of the rotary edge section (2), a transition section (3) is arranged between the air duct and the spinning mounting surface (1), the transition section (3) is arranged between the air duct and the rotary edge section (2), and the transition section (3) is arranged between the rotary edge section (2) and the inclined edge section (4).

Description

Air duct

Technical Field

The utility model relates to the technical field of mechanical manufacturing, in particular to an air duct.

Background

When an air duct in an existing radiator is designed, the air duct is often complex to manufacture, and meanwhile, the roundness of the matching of the air duct and a fan is inconsistent, so that resistance is high, and wind resistance is large.

Therefore, a need exists for a wind guide duct which is convenient to manufacture and install, ensures that the roundness of the matching of the wind guide duct and a fan is matched, and further requires a low-resistance channel and reduces wind resistance.

Disclosure of Invention

The utility model aims to overcome the defects of the background technology and provides an air duct.

The purpose of the utility model is implemented by the following technical scheme: a rotary pressing installation surface is additionally arranged on the air guide cylinder, a rotary edge section is arranged at an air inlet end of the air guide cylinder and is bent inwards along the length direction of the rotary edge section to form an inclined edge section, a transition section is arranged between the air guide cylinder and the rotary edge section, and a transition section is arranged between the rotary edge section and the inclined edge section.

In the above technical scheme: the height of the spinning installation surface is 40 mm, the height of the spinning section is 30 mm, and the length of the inclined section is 9 mm.

In the above technical scheme: the angle between the rotary edge section and the bevel edge section is 135 degrees, and the inner diameter of the transition section is 8 millimeters.

The utility model has the following advantages: compared with the original fixing mode of welding between the air duct and the fan;

1. according to the utility model, the spinning mounting surface is additionally arranged on the air duct, and a spinning fixing mode is adopted between the air duct and the fan, so that a welding mode is replaced, and the welding quantity is reduced.

2. The air inlet end of the air guide cylinder adopts the rotary edge section with the angle, the strength of the air ring of the air guide cylinder is increased, the integral roundness of the air guide cylinder is ensured,

3. the transition section of the utility model adopts the arc design, reduces the stress concentration and simultaneously reduces the air inlet resistance.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a cross-sectional view of the utility model with dimensions.

Fig. 4 is a cross-sectional profile view of the present invention.

Fig. 5 is a perspective view of the present invention.

In the figure: the spinning installation surface 1, the spinning edge section 2, the transition section 3, the bevel edge section 4 and the bevel edge section D are the inner diameter of the air guide cylinder, and A is the outer diameter of the outer circle air guide cylinder, the height L of the spinning installation surface, the radius R of the transition section, the height M of the spinning edge section and the length N of the bevel edge section.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to FIGS. 1-5: a rotary pressing installation face 1 is additionally arranged on an air guide cylinder which is installed on a fan, a rotary edge section 2 is arranged at an air inlet end of the air guide cylinder, an inclined edge section 4 is bent inwards along the length direction of the rotary edge section 2, a transition section 3 is arranged between the air guide cylinder and the rotary pressing installation face 1, a transition section 3 is arranged between the air guide cylinder and the rotary edge section 2, and a transition section 3 is arranged between the rotary edge section 2 and the inclined edge section 4.

The height of the spinning installation surface 1 is 40 mm, the height of the spinning section 2 is 30 mm, and the length of the bevel section 4 is 9 mm; the angle between the rotary edge section 2 and the bevel edge section 4 is 135 degrees, and the inner diameter of the transition section 3 is 8 millimeters.

The utility model comprises the following specific working processes: the fan is arranged in the air duct; the inner wall of the air duct is matched with the fan; an inner wall of the air duct is arranged between the two arc transition sections 3; the two arc transition sections 3 are matched with the blade tips of the fans;

the wind passes through the arc transition section 3, advances to the next arc transition section 3 along the inner wall of the air duct, is diffused to the radiating core body at the moment, and when the wind is diffused, the diffused wind is prevented from flowing back when meeting the rotary edge section 2, so that the wind is still kept in a diffused state until reaching the radiating core body;

the strength of the air duct is enhanced by the inclined edge section 4, and the air duct is prevented from being disturbed in the blowing process.

The spinning mounting surface 1 is used for supporting the whole air duct, and the spinning mounting surface 1 is connected with the air plate and supports the whole air duct.

The above-mentioned parts not described in detail are prior art.

Claims (3)

1. An air duct is arranged on a fan, and is characterized in that: the air guide cylinder is additionally provided with a spinning mounting surface (1), an air inlet end of the air guide cylinder is provided with a spinning section (2), an inclined edge section (4) is bent inwards along the length direction of the spinning section (2), a transition section (3) is arranged between the air guide cylinder and the spinning mounting surface (1), the transition section (3) is arranged between the air guide cylinder and the spinning section (2), and the transition section (3) is arranged between the spinning section (2) and the inclined edge section (4).

2. The air duct of claim 1, wherein: the height of the spinning mounting surface (1) is 40 mm, the height of the spinning section (2) is 30 mm, and the length of the inclined section (4) is 9 mm.

3. An air duct according to claim 1 or 2, wherein: the angle between the rotary edge section (2) and the oblique edge section (4) is 135 degrees, and the inner diameter of the transition section (3) is 8 millimeters.

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