Centrifugal wind wheel and air blower applying same

Abstract

The utility model discloses a centrifugal wind wheel and an air blower applying the centrifugal wind wheel, the centrifugal wind wheel comprises a plurality of blades distributed in the circumferential direction, one end of each blade is connected with a wind wheel base plate, the other end of each blade is connected with a wind wheel frame, and an air channel is formed between every two adjacent blades. The grooves are uniformly distributed, each groove comprises a circumferential part and a radial part which are connected with each other, the end part of each radial part extends to the outer edge of the wind wheel frame, and a balance block is placed in at least one groove. Unbalance points can be rapidly positioned, the dynamic balance blocks are installed in the corresponding grooves according to the unbalance points, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a centrifugal wind wheel and a blower using the same. Background Art

[0002] Existing centrifugal impellers typically consist of several blades distributed circumferentially. One end of each blade is connected to the impeller chassis, and the other end is connected to the impeller frame. Adjacent blades form an air duct. However, due to manufacturing processes and other factors, centrifugal impellers often become unbalanced after processing. When installed in a blower, unbalanced impellers can affect the blower's speed, generate excessive noise, and, in severe cases, shorten the motor's operating life. Furthermore, accurately balancing a centrifugal impeller is a complex task, resulting in low production efficiency. Utility Model Content

[0003] The utility model provides a centrifugal wind wheel and a blower using the same, which are used to solve the problem of imbalance often occurring in the centrifugal wind wheel in the prior art.

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

[0005] The first object of the present utility model is to provide a centrifugal wind wheel, comprising a plurality of blades distributed circumferentially, one end of the blade being connected to the wind wheel chassis, the other end of the blade being connected to the wind wheel frame, and an air duct being formed between two adjacent blades, characterized in that: a plurality of grooves are provided on the end surface of the wind wheel frame, the plurality of grooves are evenly distributed, the grooves comprise a circumferential portion and a radial portion connected to each other, the end of the radial portion extends to the outer edge of the wind wheel frame, and a balancing block is placed in at least one groove.

[0006] The radial portion of the groove is connected to the middle portion of the circumferential portion, and the shape of the balancing block matches the groove.

[0007] The number of radial portions of the groove is two, and the two radial portions are respectively connected to the two ends of the circumferential portion. The shape of the balancing block matches the groove.

[0008] The circumferential portion is arc-shaped.

[0009] The outer diameter of the wind wheel frame is larger than the outer diameter of the wind wheel chassis.

[0010] The outer end of the blade is connected to the inner edge of the wind wheel frame and is aligned with the outer edge of the wind wheel chassis.

[0011] The top of the blade is connected to the bottom surface of the wind wheel frame, and the outer end of the blade is aligned with the outer edge of the wind wheel frame and protrudes outside the wind wheel chassis.

[0012] The number of the above-mentioned grooves is greater than or equal to the number of blades.

[0013] The second object of the present utility model is to provide a blower, comprising a centrifugal wind wheel, characterized in that the centrifugal wind wheel is the centrifugal wind wheel described above.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The centrifugal impeller comprises a plurality of circumferentially distributed blades, one end of each blade being connected to the impeller chassis and the other end to the impeller frame, with an air duct formed between adjacent blades. The centrifugal impeller is characterized in that the end surface of the impeller frame is provided with a plurality of evenly distributed grooves, each of which comprises interconnected circumferential portions and radial portions, with the ends of the radial portions extending to the outer edge of the impeller frame. A balancing weight is placed in at least one of the grooves. This allows for rapid location of imbalance points and installation of dynamic balancing weights in the corresponding grooves, thereby improving production efficiency.

[0016] 2. Other advantages of the present invention are described in detail in the embodiment section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a centrifugal wind wheel provided in Example 1 of the present utility model;

[0018] Figure 2 for Figure 1 A magnified view of point A;

[0019] Figure 3 This is a front view of the centrifugal impeller provided in Example 1 of the present utility model;

[0020] Figure 4 for Figure 3 Enlarged view of point B;

[0021] Figure 5 A schematic structural diagram of a centrifugal wind wheel provided in the second embodiment of the present invention;

[0022] Figure 6 for Figure 5 Enlarged view of point C;

[0023] Figure 7 This is a schematic structural diagram of the centrifugal wind wheel provided in the third embodiment of the present invention;

[0024] Figure 8 for Figure 7 Enlarged view of point D;

[0025] Figure 9 This is a front view of the centrifugal impeller provided in the third embodiment of the present invention;

[0026] Figure 10 for Figure 9 Enlarged view of point E;

[0027] Figure 11 This is a schematic structural diagram of a centrifugal wind wheel provided in the fourth embodiment of the present invention;

[0028] Figure 12 for Figure 11 Enlarged view of point F. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1:

[0031] like Figures 1 to 4 As shown, this embodiment provides a centrifugal wind wheel, including a plurality of blades 1 distributed in a circumferential direction, one end of the blade 1 is connected to the wind wheel chassis 2, and the other end of the blade 1 is connected to the wind wheel frame 3, and an air duct 10 is formed between two adjacent blades 1, which is characterized in that: the end surface of the wind wheel frame 3 is provided with a plurality of grooves 31 for placing balance blocks, and the plurality of grooves 31 are evenly distributed, and the grooves 31 include a circumferential portion 311 and a radial portion 312 that are interconnected, and the end of the radial portion 312 extends to the outer edge of the wind wheel frame 3, and a balance block 4 is placed in at least one groove 31.

[0032] The centrifugal wind wheel can quickly locate the imbalance point and install the dynamic balance block 4 in the corresponding groove 31 according to the imbalance point. It is simple and practical and can greatly improve production efficiency. The above structure can adapt to different wind wheel frame 3 structures and has wide applicability.

[0033] The radial portion 312 of the groove 31 is connected to the middle portion of the circumferential portion 311, and the shape of the balancing weight 4 matches the groove 31. The matching customized dynamic balancing weight 4 makes installation more convenient and quick, and the shape of the groove 31 is T-shaped.

[0034] Specifically, the cross section of the entire groove 31 and the balancing weight 4 is a T-shaped structure.

[0035] The outer diameter of the above-mentioned wind wheel frame 3 is larger than the outer diameter of the wind wheel chassis 2 .

[0036] The outer end of the blade 1 is connected to the inner edge of the wind rotor frame 3 and is aligned with the outer edge of the wind rotor chassis 2 .

[0037] The number of the grooves 31 is greater than or equal to the number of the blades 1. The grooves 31 can be arranged right above the blades 1, or right above the air duct 10.

[0038] In this embodiment, the number of blades 1 is 30, and the number of grooves 31 is 60.

[0039] Example 2:

[0040] like Figures 5 and 6 As shown, the centrifugal wind wheel provided in this embodiment is similar to the centrifugal wind wheel described in the first embodiment, except that:

[0041] The top of the blade 1 is connected to the bottom surface of the wind rotor frame 3 , and the outer end of the blade 1 is aligned with the outer edge of the wind rotor frame 3 and protrudes outside the wind rotor chassis 2 .

[0042] Example 3:

[0043] like Figures 7 to 10 As shown, the centrifugal wind wheel provided in this embodiment is similar to the centrifugal wind wheel described in the first embodiment, except that:

[0044] The number of the radial portions 312 of the groove 31 is two, and the two radial portions 312 are respectively connected to the two ends of the circumferential portion 311 . The shape of the balancing weight 4 matches the groove 31 , and the shape of the groove 31 is U-shaped.

[0045] In one preferred embodiment, the circumferential portion 311 is arc-shaped. Specifically, the cross-section of the entire groove 31 and the balancing weight 4 is U-shaped.

[0046] Example 4:

[0047] like Figures 11 to 12 As shown, the centrifugal wind wheel provided in this embodiment is similar to the centrifugal wind wheel described in the third embodiment, except that:

[0048] The top of the blade 1 is connected to the bottom surface of the wind rotor frame 3 , and the outer end of the blade 1 is aligned with the outer edge of the wind rotor frame 3 and protrudes outside the wind rotor chassis 2 .

[0049] Embodiment 5:

[0050] This embodiment provides a blower including a centrifugal impeller 100, characterized in that the centrifugal impeller 100 is the centrifugal impeller described in Embodiment 1, Embodiment 2, Embodiment 3, or Embodiment 4. By improving the structure of the centrifugal impeller 100, the blower has a more stable rotation speed and lower noise.

[0051] 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A centrifugal wind wheel, comprising a plurality of blades (1) distributed in a circumferential direction, wherein one end of the blade (1) is connected to a wind wheel chassis (2), the other end of the blade (1) is connected to a wind wheel frame (3), and an air duct (10) is formed between two adjacent blades (1), characterized in that: The end surface of the wind wheel frame (3) is provided with a plurality of grooves (31), the plurality of grooves (31) being evenly distributed, the grooves (31) comprising a circumferential portion (311) and a radial portion (312) connected to each other, the end of the radial portion (312) extending to the outer edge of the wind wheel frame (3), and a balancing block (4) being placed in at least one of the grooves (31).

2. The centrifugal impeller according to claim 1, characterized in that: The radial portion (312) of the groove (31) is connected to the middle portion of the circumferential portion (311), and the shape of the balancing block (4) matches the groove (31).

3. The centrifugal wind wheel according to claim 1, characterized in that: The groove (31) has two radial portions (312), and the two radial portions (312) are respectively connected to the two ends of the circumferential portion (311). The shape of the balancing block (4) matches the groove (31).

4. The centrifugal wind wheel according to claim 3, characterized in that: The circumferential portion (311) is arc-shaped.

5. The centrifugal impeller according to any one of claims 1 to 4, characterized in that: The outer diameter of the wind wheel frame (3) is greater than the outer diameter of the wind wheel chassis (2).

6. The centrifugal wind wheel according to claim 5, characterized in that: The outer end of the blade (1) is connected to the inner edge of the wind wheel frame (3) and is aligned with the outer edge of the wind wheel chassis (2).

7. The centrifugal wind wheel according to claim 5, characterized in that: The top of the blade (1) is connected to the bottom surface of the wind wheel frame (3), and the outer end of the blade (1) is aligned with the outer edge of the wind wheel frame (3) and protrudes outside the wind wheel chassis (2).

8. The centrifugal wind wheel according to claim 5, characterized in that: The number of the grooves (31) is greater than or equal to the number of the blades (1).

9. A blower comprising a centrifugal impeller (100), characterized in that: The centrifugal wind wheel (100) is the centrifugal wind wheel according to any one of claims 1 to 8.

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