CN210290257U

CN210290257U - High-air-volume high-static-pressure fan assembly

Info

Publication number: CN210290257U
Application number: CN201920687937.9U
Authority: CN
Inventors: 孟凡青; 范增年; 相金波
Original assignee: Mitsubishi Heavy Industries Haier Qingdao Air Conditioners Co Ltd
Current assignee: Mitsubishi Heavy Industries Haier Qingdao Air Conditioners Co Ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-04-10
Anticipated expiration: 2029-05-14

Abstract

The utility model provides a high air volume high static pressure fan subassembly, including fan and spiral case, the fan includes the rim plate and sets up two sets of blades in the rim plate both sides, and the quantity of every group blade is 41-47 pieces, and the import erection angle of blade is 60-68, and the export erection angle of blade is 160-; the volute tongue radius R of the volute is 20-22mm, and the minimum distance H between the circumference of the fan and the volute is 15-18 mm. The utility model discloses an optimization to fan blade shape has improved the compressive capacity of fan. By optimizing the distance between the fan and the volute tongue angle, the vortex formed at the volute tongue by airflow is reduced, and therefore the fan efficiency is improved. Greatly improves the air quantity and the static pressure, and reduces the noise.

Description

High-air-volume high-static-pressure fan assembly

Technical Field

The utility model belongs to new trend air regenerating device field especially relates to a fan subassembly of high static pressure of high amount of wind.

Background

The new fan of big amount of wind on the existing market all has the serious not enough condition of static pressure, and the static pressure is not enough to lead to the installation back wind gap amount of wind not enough, influences the result of use. In order to improve the static pressure, a manufacturer can only improve the rotating speed of the motor, and the problem of noise increase caused by the increase of the rotating speed seriously influences the user experience.

SUMMERY OF THE UTILITY MODEL

The utility model discloses static pressure is not enough to current new trend fan, improves the great technical problem of noise behind the rotational speed, provides a fan subassembly of the high static pressure of the high amount of wind.

In order to achieve the above object, the utility model discloses a technical scheme be:

a high-air-volume high-static-pressure fan assembly comprises a fan and a volute, wherein the fan comprises a wheel disc and two groups of blades arranged on two sides of the wheel disc, the number of each group of blades is 41-47, the inlet installation angle of each blade is 60-68 degrees, and the outlet installation angle of each blade is 160-168 degrees; the volute tongue radius R of the volute is 20-22mm, and the minimum distance H between the circumference of the fan and the volute is 15-18 mm.

Preferably, the number of blades in each group is 43.

Preferably, the minimum distance A between the circumference of the fan and the volute is 16-18 mm.

Preferably, the ends of each set of blades are all installed in the rim, the diameter D of the outer ring of the rim is 260-270mm, and the height H of the fan is 150-160 mm.

Preferably, the diameter phi 1 of the outer ring of the rim is 265-276mm, and the height H of the fan is 154-165 mm.

Preferably, the rim has a thickness of 5-7 mm.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model discloses an optimization to fan blade shape has improved the compressive capacity of fan. By optimizing the distance between the fan and the volute tongue angle, the vortex formed at the volute tongue by airflow is reduced, and therefore the fan efficiency is improved. Greatly improves the air quantity and the static pressure, and reduces the noise.

Drawings

Fig. 1 is a schematic view of the overall structure of the fan assembly of the present invention;

fig. 2 is a front view of the fan assembly of the present invention;

FIG. 3 is a side view of the fan assembly of the present invention;

fig. 4 is an enlarged view of a portion I in fig. 3.

In the above figures: 1. a fan; 11. a wheel disc; 12. a blade; 13. a rim; 2. a volute.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings and examples.

In the embodiment, as shown in fig. 1 to 4, a high-air-volume high-static-pressure fan assembly comprises a fan 1 and a volute 2, wherein the fan 1 comprises a wheel disc 11 and two groups of blades 12 arranged on two sides of the wheel disc 11, the two groups of blades 12 are alternately arranged in a staggered manner, the number of each group of blades 12 is 43, the inlet installation angle α of the blades 12 is 60-68 degrees, the outlet installation angle β of the blades 12 is 160-168 degrees, the tail end of each group of blades 12 is arranged in a rim 13, the outer ring diameter Φ 1 of the rim 13 is 265mm, the inner ring diameter Φ 2 of the rim 13 is 265mm, the height H of the fan 1 is 156mm, the volute radius R of the volute 2 is 20-22mm, and the minimum distance H between the circumference of the fan 1 and the volute 2 is 15-18 mm.

The fan assembly of the present embodiment improves the pressure resistance of the fan 1 by optimizing the shape of the blades 12 of the fan 1. By optimizing the distance between the fan 1 and the volute 2 and the volute tongue angle, the vortex formed at the volute tongue by airflow is reduced, and therefore the efficiency of the fan 1 is improved. Greatly improves the air quantity and the static pressure, reduces the noise and improves the comfort of users using the air conditioner.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a fan subassembly of high air quantity high static pressure, includes fan and spiral case, the fan includes the rim plate and sets up two sets of blades in the rim plate both sides, its characterized in that: the number of each group of blades is 41-47, the inlet installation angle of the blades is 60-68 degrees, and the outlet installation angle of the blades is 160-168 degrees; the volute tongue radius R of the volute is 20-22mm, and the minimum distance H between the circumference of the fan and the volute is 15-18 mm.

2. The high air volume high static pressure fan assembly of claim 1, further comprising: the number of blades in each group is 43.

3. The high air volume high static pressure fan assembly of claim 1, further comprising: the minimum distance A between the circumference of the fan and the volute is 16-18 mm.

4. The high air volume high static pressure fan assembly of claim 3, further comprising: the tail ends of each group of blades are all arranged in the wheel rim, the diameter phi 1 of the outer ring of the wheel rim is 260-270mm, and the height H of the fan is 150-160 mm.

5. The high air volume high static pressure fan assembly of claim 4, wherein: the diameter D of the outer ring of the rim is 265-276mm, and the height H of the fan is 154-165 mm.

6. The high air volume high static pressure fan assembly of claim 4, wherein: the thickness of the rim is 5-7 mm.