Wind wheel and air blower applying same

Abstract

The utility model discloses a wind wheel and an air blower applying the same, the wind wheel comprises a wind wheel front disc, a wind wheel rear disc and a plurality of main wind blades installed and connected between the wind wheel front disc and the wind wheel rear disc, an air inlet is arranged in the middle of the wind wheel front disc, and an air channel is formed between two adjacent main wind blades. A connecting seat used for being connected with a motor rotating shaft is arranged in the center of the wind wheel rear disc, a plurality of auxiliary fan blades evenly distributed in the axial direction are arranged in the edge of the wind wheel rear disc in a protruding mode, the auxiliary fan blades and the main fan blades are distributed on the two sides of the wind wheel rear disc, and a plurality of curved fan blades evenly distributed in the axial direction are arranged between the connecting seat and the auxiliary fan blades of the wind wheel rear disc in a protruding mode. The curved fan blades can increase the flow speed of airflow in the volute, reduce the vortex of the airflow in the volute and effectively increase the static pressure in the volute.

Description

Technical Field

[0001] The utility model relates to a wind wheel and a blower to which the wind wheel is applied. Background Art

[0002] The existing blower includes a volute composed of a volute casing and a cover plate, a motor installed outside the volute casing, and a wind wheel installed in the inner cavity of the volute casing. The wind wheel includes a front wind wheel disc, a rear wind wheel disc, and a plurality of main wind blades installed and connected between the front wind wheel disc and the rear wind wheel disc. An air inlet is arranged in the middle of the front wind wheel disc, and an air duct is formed between adjacent two main wind blades. A connecting seat is arranged in the center of the rear wind wheel disc. To improve the negative pressure value inside the wind wheel, a plurality of auxiliary wind blades evenly distributed around the axis protrude inward from the edge of the rear wind wheel disc. The auxiliary wind blades and the main wind blades are distributed on both sides of the rear wind wheel disc. The rotating shaft of the motor extends into the inner cavity of the volute casing and is connected to the connecting seat. The static pressure provided by the existing wind wheel is relatively low, affecting the working efficiency and air volume of the blower, so improvement is needed. Summary of the Utility Model

[0003] The utility model provides a wind wheel and a blower to which the wind wheel is applied, so as to solve the problem of relatively low static pressure of the blower in the prior art.

[0004] The technical solution of the utility model is realized as follows:

[0005] The first object of the utility model is to provide a wind wheel, which includes a front wind wheel disc, a rear wind wheel disc, and a plurality of main wind blades installed and connected between the front wind wheel disc and the rear wind wheel disc. An air inlet is arranged in the middle of the front wind wheel disc, and an air duct is formed between adjacent two main wind blades. A connecting seat for connecting with the motor rotating shaft is arranged in the center of the rear wind wheel disc. A plurality of curved wind blades evenly distributed around the axis protrude inward from the edge of the rear wind wheel disc. The auxiliary wind blades and the main wind blades are distributed on both sides of the rear wind wheel disc. A plurality of curved wind blades protrude between the connecting seat and the auxiliary wind blades on the rear wind wheel disc.

[0006] The head of the above-mentioned curved wind blade is connected to the outer side surface of the connecting seat, and the tail of the curved wind blade is arranged in a dislocation manner with the auxiliary wind blade.

[0007] The above-mentioned curved wind blade is a forward-inclined wind blade.

[0008] The above-mentioned curved wind blade is a backward-inclined wind blade.

[0009] The above-mentioned front wind wheel disc and rear wind wheel disc are circular flat plates, the diameter of the front wind wheel disc is smaller than that of the rear wind wheel disc, and a plurality of curved wind blades are evenly distributed around the connecting seat in the circumferential direction.

[0010] The above-mentioned front wind wheel disc, rear wind wheel disc, main wind blades, auxiliary wind blades and curved wind blades are integrally injection-molded.

[0011] The second object of the present utility model is to provide a blower, which includes a volute, a motor installed outside the volute, and a wind wheel installed in the inner cavity of the volute. The wind wheel is the above-mentioned wind wheel, and the rotating shaft of the motor extends into the inner cavity and is connected to the connecting seat of the wind wheel.

[0012] Compared with the prior art, the present utility model has the following advantages:

[0013] 1. The wind wheel includes a front wind wheel disc, a rear wind wheel disc, and a plurality of main wind blades installed and connected between the front wind wheel disc and the rear wind wheel disc. An air inlet is provided in the middle of the front wind wheel disc, and an air duct is formed between adjacent main wind blades. A connecting seat for connecting with the motor rotating shaft is provided in the center of the rear wind wheel disc. A plurality of auxiliary wind blades evenly distributed around the axis protrude inward from the edge of the rear wind wheel disc. The auxiliary wind blades and the main wind blades are distributed on both sides of the rear wind wheel disc. A plurality of curved wind blades evenly distributed around the axis protrude between the connecting seat and the auxiliary wind blades on the rear wind wheel disc. In this way, not only can the strength of the wind wheel be ensured not to be affected, but the curved wind blades can increase the air flow velocity inside the volute, reduce the air flow vortex inside the volute, and effectively increase the static pressure inside the volute.

[0014] 2. Other advantages of the present utility model are described in detail in the embodiment part. Description of the Drawings

[0015] Figure 1 Is a three-dimensional schematic diagram of the wind wheel provided in Embodiment 1 of the present utility model;

[0016] Figure 2 Is another three-dimensional view of the wind wheel provided in Embodiment 1 of the present utility model;

[0017] Figure 3 Is a front view of the wind wheel provided in Embodiment 1 of the present utility model;

[0018] Figure 4 Is a rear view of the wind wheel provided in Embodiment 1 of the present utility model;

[0019] Figure 5 Is a structural schematic diagram of the wind wheel provided in Embodiment 2 of the present utility model. Detailed Embodiment

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment 1:

[0022] As Figures 1 to 4 shown, the wind wheel provided in this embodiment is a kind of wind wheel, which includes a front wind wheel disc 1, a rear wind wheel disc 2, and a plurality of main wind blades 3 installed and connected between the front wind wheel disc 1 and the rear wind wheel disc 2. An air inlet 11 is arranged in the middle of the front wind wheel disc 1, and an air duct 10 is formed between two adjacent main wind blades 3. A connecting seat 21 for connecting with the motor rotating shaft is arranged in the center of the rear wind wheel disc 2. A plurality of auxiliary wind blades 4 uniformly distributed around the axis protrude inward from the edge of the rear wind wheel disc 2. The auxiliary wind blades 4 and the main wind blades 3 are distributed on both sides of the rear wind wheel disc 2. It is characterized in that: a plurality of curved wind blades 22 protrude between the connecting seat 21 and the auxiliary wind blades 4 on the rear wind wheel disc 2.

[0023] For the wind wheel, the curved wind blades 3 can not only ensure that the strength of the wind wheel is not affected, but also increase the air flow velocity inside the volute, reduce the air flow vortex inside the volute, and effectively increase the static pressure inside the volute.

[0024] The head of the above-mentioned curved wind blade 22 is connected to the outer side surface of the connecting seat 21, and the tail of the curved wind blade 22 is arranged in a staggered manner with the auxiliary wind blade 4. The curved wind blade can be used as a reinforcing rib to ensure the strength of the wind wheel.

[0025] The above-mentioned curved wind blade 22 is a forward-inclined wind blade.

[0026] The above-mentioned front wind wheel disc 1 and rear wind wheel disc 2 are circular flat plates. The diameter of the front wind wheel disc 1 is smaller than that of the rear wind wheel disc 2. A plurality of curved wind blades 22 are uniformly distributed circumferentially around the connecting seat 21.

[0027] The above-mentioned front wind wheel disc 1, rear wind wheel disc 2, main wind blades 3, auxiliary wind blades 4 and curved wind blades 22 are integrally injection-molded.

[0028] Embodiment 2:

[0029] As Figure 5 shown, the wind wheel provided in this embodiment is similar to the wind wheel described in Embodiment 1, the difference is that:

[0030] The above-mentioned curved wind blade 22 is a rearward-inclined wind blade.

[0031] Embodiment 3:

[0032] The second object of the present utility model is to provide a blower, which includes a volute, a motor installed outside the volute, and a wind wheel 100 installed in the inner cavity of the volute. It is characterized in that: the wind wheel 100 is the wind wheel described in Embodiment 1 or Embodiment 2, and the rotating shaft of the motor extends into the inner cavity and is connected to the connecting seat 21 of the wind wheel 100.

[0033] By improving the structure of the wind wheel 100, the static pressure of the wind wheel 100 is increased, and the working efficiency and air volume of the blower are ensured.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wind wheel, comprising a front wind wheel disc (1), a rear wind wheel disc (2), and a plurality of main wind blades (3) installed and connected between the front wind wheel disc (1) and the rear wind wheel disc (2). An air inlet (11) is provided in the middle of the front wind wheel disc (1). An air duct (10) is formed between two adjacent main wind blades (3). A connecting seat (21) for connecting with the motor rotating shaft is provided at the center of the rear wind wheel disc (2). A plurality of auxiliary wind blades (4) evenly distributed around the axis protrude inward from the edge of the rear wind wheel disc (2). The auxiliary wind blades (4) and the main wind blades (3) are distributed on both sides of the rear wind wheel disc (2). It is characterized in that: Between the connecting seat (21) and the auxiliary wind blade (4), the rear disc (2) of the wind wheel is convexly provided with a plurality of curved wind blades (22).

2. A wind wheel according to claim 1, characterized in that: The head of the curved wind blade (22) is connected to the outer side surface of the connecting seat (21), and the tail of the curved wind blade (22) is arranged in a staggered manner with the auxiliary wind blade (4).

3. The wind turbine according to claim 2, wherein: The curved wind blade (22) is a forward-tilted wind blade.

4. A wind wheel according to claim 2, characterized in that: The curved wind blade (22) is a backward-tilted wind blade that is bent in the counterclockwise direction.

5. A wind turbine according to any one of claims 1 to 4, characterized in that: The front disc (1) and the rear disc (2) of the wind wheel are circular flat plates. The diameter of the front disc (1) of the wind wheel is smaller than the diameter of the rear disc (2) of the wind wheel. A plurality of curved wind blades (22) are circumferentially and evenly distributed around the connecting seat (21).

6. A wind wheel according to claim 5, characterized in that: The front disc (1) of the wind wheel, the rear disc (2) of the wind wheel, the main wind blades (3), the auxiliary wind blades (4) and the curved wind blades (22) are integrally injection-molded.

7. A blower, comprising a volute, a motor installed outside the volute, and an impeller (100) installed in the inner cavity of the volute, characterized in that: The wind wheel (100) is the wind wheel according to any one of claims 1 to 6. The rotating shaft of the motor extends into the inner cavity and is connected to the connecting seat (21) of the wind wheel (100).

Images