WIND WHEEL AND BLOWER USING SAME

Description

RELATED APPLICATIONS

This application claims priority to Chinese Patent Application Ser. No. 202422360533.2, filed Sep. 26, 2024, the disclosure of which is incorporated by reference in its entirety.

FIELD OF THE DISCLOSURE

The present invention relates to a wind wheel, and a blower using the same.

BACKGROUND

An existing blower includes a volute composed of a volute casing and a cover plate, a motor mounted outside the volute, and a wind wheel mounted in an inner cavity of the volute. The wind wheel includes a wind wheel front disc, a wind wheel rear disc, and a plurality of main blades mounted and connected between the wind wheel front disc and the wind wheel rear disc, wherein a wind inlet is provided in the middle of the wind wheel front disc; an air duct is formed between every two adjacent main blade; and a connection seat is provided at the center of the wind wheel rear disc. In order to improve a negative pressure value inside the wind wheel, a plurality of auxiliary blades protrude at positions inward from an edge of the wind wheel rear disc and are uniformly distributed around an axial direction; the auxiliary blades and the main blades are respectively distributed on two sides of the wind wheel rear disc; and a rotating shaft of the motor extends into the inner cavity and is connected to the connection seat. Static pressure that can be provided by the existing wind wheel is relatively low, which affects the operating efficiency and air volume of the blower, and therefore requires improvement.

SUMMARY

The present invention provides a wind wheel, and a blower using the same, to solve the problem of low static pressure of a blower in the prior art.

A technical solution of the present invention is implemented as follows:

A first object of the present invention is to provide a wind wheel, including a wind wheel front disc, a wind wheel rear disc, and a plurality of main blades mounted and connected between the wind wheel front disc and the wind wheel rear disc, wherein a wind inlet is provided in the middle of the wind wheel front disc; an air duct is formed between every two adjacent main blade; a connection seat for being connected to a rotating shaft of a motor is provided at the center of the wind wheel rear disc; a plurality of auxiliary blades protrude at positions inward from an edge of the wind wheel rear disc and are uniformly distributed around an axial direction; and the auxiliary blades and the main blades are respectively distributed on two sides of the wind wheel rear disc, wherein a plurality of curved blades protrude from the wind wheel rear disc and extend between the connection seat and auxiliary blades.

Head portions of the curved blades are connected to an outer side surface of the connection seat, and tail portions of the curved blades are arranged in a staggered manner with respect to the auxiliary blades.

The curved blades are a forward-inclined blades.

The curved blades are backward-inclined blades.

The wind wheel front disc and the wind wheel rear disc are both circular flat plates; the diameter of the wind wheel front disc is smaller than the diameter of the wind wheel rear disc; and the plurality of curved blades are uniformly distributed circumferentially around the connection seat.

The wind wheel front disc, the wind wheel rear disc, the main blades, the auxiliary blades, and the curved blades are integrally formed by injection molding.

A second object of the present invention is to provide a blower including a volute, a motor mounted outside the volute, and a wind wheel mounted in an inner cavity of the volute, wherein the wind wheel is the above-described wind wheel, and a rotating shaft of the motor extends into the inner cavity and is connected to the connection seat of the wind wheel.

Compared with the prior art, the present invention has the following advantages:

1. The wind wheel includes a wind wheel front disc, a wind wheel rear disc, and a plurality of main blades mounted and connected between the wind wheel front disc and the wind wheel rear disc, wherein a wind inlet is provided in the middle of the wind wheel front disc; an air duct is formed between every two adjacent main blade; a connection seat for being connected to a rotating shaft of a motor is provided at the center of the wind wheel rear disc; a plurality of auxiliary blades protrude at positions inward from an edge of the wind wheel rear disc and are uniformly distributed around an axial direction; and the auxiliary blades and the main blades are respectively distributed on two sides of the wind wheel rear disc, wherein a plurality of curved blades protrude from the wind wheel rear disc and extend between the connection seat and auxiliary blades, and are uniformly distributed around the axial direction. This ensures that the strength of the wind wheel is not affected, and the curved blades can increase an airflow velocity inside the volute, reduce airflow vortices inside the volute, and effectively increase static pressure inside the volute.

2. Other advantages of the present invention are described in detail in the embodiment section.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic perspective diagram of a wind wheel according to Embodiment 1 of the present invention;

FIG. 2 is a perspective diagram of the wind wheel according to Embodiment 1 of the present invention from another angle;

FIG. 3 is a front view of the wind wheel according to Embodiment 1 of the present invention;

FIG. 4 is a rear view of the wind wheel according to Embodiment 1 of the present invention; and

FIG. 5 is a schematic structural diagram of a wind wheel according to Embodiment 2 of the present invention.

DETAILED DESCRIPTION

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described below clearly and completely in conjunction with the drawings in the embodiments of the present invention. Apparently, the embodiments described are merely some rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

Embodiment 1

As shown in FIGS. 1 to 4, this embodiment provides a wind wheel, including a wind wheel front disc 1, a wind wheel rear disc 2, and a plurality of main blades 3 mounted and connected between the wind wheel front disc 1 and the wind wheel rear disc 2, wherein a wind inlet 11 is provided in the middle of the wind wheel front disc 1; an air duct 10 is formed between every two adjacent main blade 3; a connection seat 21 for being connected to a rotating shaft of a motor is provided at the center of the wind wheel rear disc 2; a plurality of auxiliary blades 4 protrude at positions inward from an edge of the wind wheel rear disc 2 and are uniformly distributed around an axial direction; and the auxiliary blades 4 and the main blades 3 are respectively distributed on two sides of the wind wheel rear disc 2, wherein a plurality of curved blades 22 protrude from the wind wheel rear disc 2 and extend between the connection seat 21 and auxiliary blades 4.

In the wind wheel, the curved blades 22 not only can ensure that the strength of the wind wheel is not affected, but also can increase an airflow velocity inside the volute, reduce airflow vortices inside the volute, and effectively increase static pressure inside the volute.

Head portions of the curved blades 22 are connected to an outer side surface of the connection seat 21, and tail portions of the curved blades 22 are arranged in a staggered manner with respect to the auxiliary blades 4. The curved blades may be used as reinforcing ribs, which ensures the strength of the wind wheel.

The curved blades 22 are forward-inclined blades.

The wind wheel front disc 1 and the wind wheel rear disc 2 are both circular flat plates; the diameter of the wind wheel front disc 1 is smaller than the diameter of the wind wheel rear disc 2; and the plurality of curved blades 22 are uniformly distributed circumferentially around the connection seat 21.

The wind wheel front disc 1, the wind wheel rear disc 2, the main blades 3, the auxiliary blades 4, and the curved blades 22 are integrally formed by injection molding.

Embodiment 2

As shown in FIG. 5, this embodiment provides a wind wheel similar to the wind wheel described in Embodiment 1, with a difference in that:

the curved blades 22 are backward-inclined blades.

Embodiment 3

A second object of the present invention is to provide a blower including a volute, a motor mounted outside the volute, and a wind wheel 100 mounted in an inner cavity of the volute, wherein the wind wheel 100 is the wind wheel described in Embodiment 1 or Embodiment 2, and a rotating shaft of the motor extends into the inner cavity and is connected to the connection seat 21 of the wind wheel 100.

By improving the structure of the wind wheel 100, the static pressure of the wind wheel 100 is increased, which ensures the operating efficiency and air volume of the blower.

Finally, it is to be noted that the above embodiments are merely used for illustrating rather than limiting the technical solutions of the present invention. Although the present invention is described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they still can make modifications to the technical solutions disclosed in the foregoing embodiments or make equivalent substitutions to part of technical features thereof; and such modifications or substitutions should not cause the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present invention.