CN112483462A

CN112483462A - Centrifugal wind wheel and manufacturing method thereof

Info

Publication number: CN112483462A
Application number: CN202010902545.7A
Authority: CN
Inventors: 熊亚林
Original assignee: Shunde Foshan No 1 Electrical Appliance Fittings Co ltd
Current assignee: Shunde Foshan No 1 Electrical Appliance Fittings Co ltd
Priority date: 2020-09-05
Filing date: 2020-09-05
Publication date: 2021-03-12

Abstract

The invention discloses a centrifugal wind wheel and a manufacturing method thereof, comprising a hub and an impeller part consisting of blades and a tray; the blades and the tray are integrally molded, and the blades are uniformly or non-uniformly distributed on the surface of one end of the tray by taking the axis of the tray as a center and the circumference; the other end of the blade is connected with the surface of one end of the hub through secondary processing; the impeller part is one or more than one and is respectively arranged on one end surface or two end surfaces of the hub. The method mainly aims at the centrifugal wind wheels with the same diameter, different heights and different rotating directions, adjusts the height of the centrifugal wind wheels by changing the number of the impeller parts, and manufactures the centrifugal wind wheels with different structures by changing the combination mode of the impeller parts and the hub; the centrifugal wind wheel can be manufactured by one set of die, has the same diameter, different height and different rotation direction, greatly reduces die sinking cost, reduces production cost and improves product performance.

Description

Centrifugal wind wheel and manufacturing method thereof

Technical Field

The invention relates to the technical field of ventilation, in particular to a centrifugal wind wheel and a manufacturing method thereof.

Background

The centrifugal wind wheel is an impeller of a centrifugal fan, so that air flows in from the axial direction and flows out from the radial direction through the fan blades, and the centrifugal wind wheel is widely applied to various ventilation equipment and electric appliances.

For centrifugal wind wheel manufacturers for producing plastic materials, centrifugal wind wheels with different specifications can be involved, however, the centrifugal wind wheels have different heights and the same diameter, and the centrifugal wind wheels with different rotating directions occupy a large part; meanwhile, because the centrifugal wind wheel in the prior art adopts an integrally molded structural design, the centrifugal wind wheels with different heights, same diameters and different rotating directions need to be matched with corresponding molds meeting requirements according to the centrifugal wind wheels with different heights and different rotating directions; the universal structural design can not be adopted, the heights can be adjusted by changing the number of the sections of the impeller part to realize different heights, the blade direction can be adjusted by changing the connection of the impeller part and different end faces of the hub to realize the change of the centrifugal rotating direction, and the production of the centrifugal wind wheel of the type with the same diameter leads to high mold opening cost and increased production cost;

in addition, the existing plastic centrifugal wind wheel is of an integral molding structure, and due to the limitation of the existing mold manufacturing process and technology, as shown in fig. 1-3, the tray 001 can only be arranged on the outer side of the air inlet end of the blade 002, but cannot be arranged on the top of the air inlet end of the blade 002, so that pressure relief is easily caused, and the air outlet is uneven.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention mainly aims to provide a centrifugal wind wheel and a manufacturing method thereof, which aim at the centrifugal wind wheel with the same diameter, different heights and different rotating directions, adopt a brand-new structure capable of being superposed and combined, adjust the height of the wind wheel by changing the number of the sections of the wind wheel, and change the rotating direction by changing different end surfaces of the connection between the wind wheel and a hub.

A centrifugal wind wheel is characterized by comprising a hub 1, an impeller part 2 consisting of blades 21 and a circular tray 22 playing a reinforcing role; the blades 21 and the tray 22 are integrally molded, and the blades 21 are uniformly or non-uniformly distributed on one end surface of the tray 22 by taking the axis of the tray 22 as the center and the circumference; the other end of the blade 21 is connected to one end surface of the hub 1 by secondary processing.

Preferably, the impeller member 2 is one or more than one, and is respectively disposed on one end surface or two end surfaces of the hub 1.

Preferably, the surface of one end of the tray 22 far away from the blades 21 is provided with reinforcing ribs 3 which are uniformly or non-uniformly distributed on the circumference by taking the axis of the tray 22 as a center; the reinforcing ribs 3 and the blades 21 are oppositely and alternately arranged on the tray 22;

when the impeller part 2 is connected with another impeller part 2, one end of the blade 21 of the impeller part 2 far away from the tray 22 is correspondingly connected with the reinforcing rib 3 of the other impeller part 2.

Preferably, one side of the blade 21 close to the axial center is a blade inner edge 211, and one side far away from the axial center is a blade outer edge 212; the blade inner edge 211 is arc-shaped, and the blade outer edge 212 is straight; the distance between the inner circle and the outer circle of the tray 22 is L1; the distance between the endpoint A of the inner edge 211 of the blade and the inner circle of the tray 22 is 0.05-0.1L 1, and the distance between the midpoint B of the outer edge 212 of the blade and the outer circle of the tray 22 is 0.025-0.05L 1; the hub 1 has a diameter equal to the outer diameter of the tray 22.

Preferably, the hub 1 comprises a connecting plane 11 of a circular ring structure connected with the blades 21 and a fixing seat 12 of a concave structure connected with the connecting plane 11; the inner circle radius of the connecting plane 11 is L2, and the inner circle radius of the tray 22 is 90-95% L2; the end point a of the inner edge 211 of the blade is located inside the inner circle of the connection plane 11 and is spaced from the inner circle of the connection plane 11 by a distance of 0.03L 2.

Preferably, a centrifugal wind wheel composed of the hub 1 and the single impeller part 2 or composed of the hub 1 and the single impeller part 2 provided on both end surfaces of the hub 1 is the base centrifugal wind wheel 111.

Preferably, base rotor 111 includes a first base rotor 1111, a second base rotor 1112, and a third base rotor 1113;

the first base centrifugal wind wheel 1111 is a single-air-inlet centrifugal wind wheel rotating anticlockwise, and an impeller part 2 of the first base centrifugal wind wheel is positioned close to one end, connected with a motor rotating shaft, of the hub 1; the second matrix centrifugal wind wheel 1112 is a single-inlet centrifugal wind wheel rotating clockwise, and an impeller part 2 of the second matrix centrifugal wind wheel is positioned at one end far away from the hub 1 and connected with a motor rotating shaft; the third base body centrifugal wind wheel 1113 is a double-air-inlet centrifugal wind wheel, and two ends of a hub 1 of the third base body centrifugal wind wheel are both provided with impeller parts 2.

The thickness of the connection plane 11 is L3, and the height of the single impeller member 2 is L4, which formula can be written as:

wherein, 1F is the centrifugal wind wheel to be manufactured, and L5 is the total height of 1F; 1G is the number of impeller parts required for producing 1F;

1G ═ L5-L3)/L4, and the numerical values for 1G are in the integer part.

Preferably, when the 1F is the first matrix centrifugal wind wheel 1111, 1G is L5-L3)/L4; when the 1F is the second matrix centrifugal wind wheel 1112, 1G is L5-L3)/L4;

preferably, when 1F is third matrix centrifugal rotor 1113, the formula can be written as follows:

wherein:

l51 is the height of 1F from its connection plane 11 to the left end;

l52 is the height of 1F from its connecting plane 11 to the right end;

l6 is the thickness of the connection plane 11 of 1F;

1G1 is the number of impeller members 2 required for making 1F from the connection plane 11 to the left end thereof;

1G2 is the number of impeller members 2 required for making 1F from the connection plane 11 to the right end thereof;

l5 ═ L51+ L52+ L6; the 1G-1G 1+1G 2;

1G1＝L51/L4，1G2＝L52/L4。

preferably, the manufacturing method of the centrifugal wind wheel comprises the following steps:

determining thickness L3 of a connecting plane and height L4 of an impeller part in matrix centrifugal wind wheel 111, prefabricating matrix centrifugal wind wheel 111: the hub 1 of the matrix centrifugal wind wheel 111 and the impeller part 2 consisting of the blades 21 and the tray 22 are manufactured by two sets of different molds, and the blades 21 and the tray 22 are manufactured by integrally molding the molds;

determining which structure of a first matrix centrifugal wind wheel 1111, a second matrix centrifugal wind wheel 1112 or a third matrix centrifugal wind wheel 1113 is required to be manufactured by the centrifugal wind wheel 1F; then 1G or 1G2 and 1G1 are calculated through formulas;

based on the structure of 1F and the values of 1G or 1G2 and 1G1, impeller member 2 is connected to base rotor 111 by a connection method, thereby producing 1F.

Compared with the prior art, the invention has the beneficial effects that:

1. centrifugal wind wheel adopts non-integrated into one piece's structure, makes wheel hub and the impeller part who comprises blade and the tray that plays the additional strengthening pass through secondary operation and connects, makes the tray can set up the air inlet end surface at the blade, solves current centrifugal wind wheel and releases the pressure easily, leads to the inhomogeneous problem of air-out.

2. Through adopting the tray setting to have increased the connection area of blade and tray at the structure on blade air inlet end surface, make impeller part and impeller part be connected more stably, firmly, promoted centrifugal wind wheel's bulk strength.

3. Aiming at the centrifugal wind wheels with the same diameter, different heights and different rotating directions, a brand-new structure capable of being superposed and combined is adopted, the height of the centrifugal wind wheels is adjusted by changing the number of impeller parts, and the centrifugal wind wheels with different structures are manufactured by changing the combination mode of the impeller parts and a hub (such as the centrifugal wind wheels with different heights, which rotate clockwise, the centrifugal wind wheels with different heights, which rotate anticlockwise and the centrifugal wind wheels with different heights and double wind inlets); the centrifugal wind wheel has the advantages that multiple centrifugal wind wheels with the same diameter, different heights and different air inlet modes can be manufactured through one set of die, die sinking cost is reduced, manufacturing cost is reduced, and product performance is improved.

Drawings

FIG. 1 is one of the schematic prior art structures;

FIG. 2 is a second schematic diagram of a prior art structure;

FIG. 3 is a third schematic diagram of a prior art structure;

figure 4 is an exploded view of a first matrix centrifugal rotor according to the invention;

FIG. 5 is a right side view of a first matrix centrifugal rotor according to the present invention;

FIG. 6 is a schematic view of the cross-sectional structure A-A of FIG. 5;

FIG. 7 is an enlarged view of a portion of FIG. 6 at B;

FIG. 8 is a schematic view of the cross-sectional structure C-C of FIG. 5;

FIG. 9 is an enlarged partial schematic view at D of FIG. 8;

FIG. 10 is a schematic view of a second matrix centrifugal rotor according to the present invention;

FIG. 11 is a schematic view of a third matrix centrifugal rotor according to the present invention;

FIG. 12 is a schematic structural view of an embodiment of a first matrix centrifugal rotor according to the present invention;

figure 13 is a schematic structural view of an embodiment of a second matrix centrifugal rotor according to the invention;

FIG. 14 is a schematic structural view of an embodiment of a third matrix centrifugal rotor according to the present invention;

FIG. 15 is a schematic flow chart of an embodiment of a method of manufacturing a centrifugal wind wheel according to the present invention;

in order to make the technical solution of the present invention clearer and clearer, the following detailed description is made with reference to the accompanying drawings.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "front," "back," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention will be further described with reference to the accompanying drawings and the detailed description below:

as shown in fig. 4, the centrifugal wind wheel is characterized by comprising a hub 1, an impeller part 2 consisting of blades 21 and a reinforcing annular tray 22; the blades 21 and the tray 22 are integrally molded, and the blades 21 are uniformly or non-uniformly distributed on one end surface of the tray 22 by taking the axis of the tray 22 as the center and the circumference; the other end of the blade 21 is connected with one end surface of the hub 1 through secondary processing; the connection mode of the hub 1 and the impeller part 2 is one of ultrasonic welding, adhesive connection or solvent connection.

In this embodiment, this centrifugal wind wheel adopts non-integrated into one piece's structure, makes wheel hub 1 and the impeller part 2 of constituteing by blade 21 and tray 22 connect through secondary operation, makes tray 22 can set up the air inlet terminal surface at blade 21, solves current centrifugal wind wheel and lets out pressure easily, leads to the inhomogeneous problem of air-out.

Further, as shown in fig. 4, 10 and 11, the number of the impeller parts 2 is one or more, and the one or more impeller parts are respectively arranged on one end surface or two end surfaces of the hub 1;

further, as shown in fig. 4, 10 and 11, the end surface of the tray 22 away from the blade 21 is provided with reinforcing ribs 3 which are uniformly or non-uniformly distributed on the circumference with the axis of the tray 22 as the center; the reinforcing ribs 3 and the blades 21 are oppositely and alternately arranged on the tray 22;

when the impeller part 2 is connected with another impeller part 2, one end of the blade 21 of the impeller part 2 far away from the tray 22 is correspondingly connected with the reinforcing rib 3 of the other impeller part 2; the impeller part 2 and the impeller part 2 are connected in one of ultrasonic welding, adhesive connection or solvent connection.

In this embodiment, the reinforcing ribs 3 improve the strength of the tray 22, so that the impeller part 2 and the impeller part 2 are more stable and firm when being connected; at the same time, the air flow rate can be increased.

In addition, the reinforcing ribs 3 and the blades 21 are arranged on the tray 22 in a staggered mode in the opposite direction, so that when the impeller part 2 is connected with another impeller part 2, the blades of the upper layer and the lower layer are distributed in a staggered mode, the overall strength of the centrifugal wind wheel is improved firstly, the situation that the sound wave peak is different in height is effectively avoided secondly, and a good noise reduction effect is achieved.

Further, as shown in fig. 5-9, the side of the vane 21 close to the axial center is a vane inner edge 211, and the side far from the axial center is a vane outer edge 212; the blade inner edge 211 is arc-shaped, and the blade outer edge 212 is straight; the distance between the inner circle and the outer circle of the tray 22 is L1; the distance between the endpoint A of the inner edge 211 of the blade and the inner circle of the tray 22 is 0.05-0.1L 1, and the distance between the midpoint B of the outer edge 212 of the blade and the outer circle of the tray 22 is 0.025-0.05L 1; the hub 1 has a diameter equal to the outer diameter of the tray 22.

In this embodiment, make the width size of blade 21 be less than the width size of tray 22, simultaneously the distance between the extreme point A of blade inner edge 211 and the interior circle of tray 22 is 0.05 ~ 0.1L1, the distance between the midpoint B of blade outer fringe 212 and the excircle of tray 22 is 0.025 ~ 0.05L1, makes blade 21 wholly set up between the interior circle and the excircle of tray 22, has promoted the joint strength of blade 21 and tray 22 promptly, has effectively promoted the air inlet wind pressure simultaneously and has ensured the even of air-out.

Further, as shown in fig. 5-9, the hub 1 includes a connection plane 11 of a circular ring structure connected with the blades 21 and a fixing seat 12 of a concave structure connected with the connection plane 11; the inner circle radius of the connecting plane 11 is L2, and the inner circle radius of the tray 22 is 90-95% L2; the end point a of the inner edge 211 of the blade is located inside the inner circle of the connection plane 11 and is spaced from the inner circle of the connection plane 11 by a distance of 0.03L 2.

In this embodiment, the end point a of the inner edge 211 of the blade is located above the fixed seat 12, and the distance between the end point a and the inner circle of the connecting plane 11 is 0.03L2, so that the wind collecting effect between the blade 21 and the blade 21 is improved.

Further, a centrifugal wind wheel composed of the hub 1 and the single impeller part 2 or composed of the hub 1 and the single impeller part 2 provided on both end surfaces of the hub 1 is a base centrifugal wind wheel 111.

Further, as shown in fig. 4, 10, and 11, base rotor 111 includes first base rotor 1111, second base rotor 1112, and third base rotor 1113;

the first base centrifugal wind wheel 1111 is a single-air-inlet centrifugal wind wheel rotating anticlockwise, and an impeller part 2 of the first base centrifugal wind wheel is positioned close to one end, connected with a motor rotating shaft, of the hub 1; the second matrix centrifugal wind wheel 1112 is a single-inlet centrifugal wind wheel rotating clockwise, and an impeller part 2 of the second matrix centrifugal wind wheel is positioned at one end far away from the hub 1 and connected with a motor rotating shaft; the third base centrifugal wind wheel 1113 is a double-air-inlet centrifugal wind wheel, and two ends of a hub 1 of the third base centrifugal wind wheel are both provided with impeller parts 2;

1G ═ L5-L3)/L4, and the numerical values for 1G are in the integer part.

Further, as shown in fig. 4, 10, 12, and 13, when 1F is the first matrix centrifugal wind wheel 1111, 1G ═ L5-L3)/L4; and when the 1F is the second matrix centrifugal wind wheel 1112, the 1G is L5-L3)/L4.

The first embodiment is as follows: as shown in fig. 4 and 12, when 1F is the first base centrifugal wind wheel 1111 (single-inlet centrifugal wind wheel rotating counterclockwise), it is assumed that L5 of the centrifugal wind wheel 1F to be manufactured is 12; the first matrix centrifugal wind wheel 1111 has L3 of 2 and L4 of 5; then, the number of the required impeller members 2 is calculated by the formula 1G ═ L5-L3)/L4 ═ 2, and then the number of the calculated impeller members 2 is connected with the first matrix centrifugal wind wheel 1111 by secondary processing according to the structural requirements, so that 1F with the two-layer structure in the first embodiment can be manufactured.

Example two: as shown in fig. 10 and 13, when 1F is a second base centrifugal wind wheel 1112 (a single-inlet centrifugal wind wheel rotating clockwise), it is assumed that L5 of the centrifugal wind wheel 1F to be manufactured is 12; the L3 of the second matrix centrifugal wind wheel 1112 is 2, and the L4 is 5; then, the number of the required impeller parts 2 is calculated by the formula 1G-L5-L3)/L4-2, and then the calculated number of the impeller parts 2 is connected with the second matrix centrifugal wind wheel 1112 by secondary processing according to the structural requirements, so that 1F with the two-layer structure in the second embodiment can be manufactured.

Further, as shown in fig. 11 and 14, when the 1F is the third matrix centrifugal wind wheel 1113 (double inlet centrifugal wind wheel), the formula can be written as follows:

wherein:

l51 is the height of 1F from its connection plane 11 to the left end;

l52 is the height of 1F from its connecting plane 11 to the right end;

l6 is the thickness of the connection plane 11 of 1F;

l5 ═ L51+ L52+ L6; the 1G-1G 1+1G 2;

1G1＝L51/L4，1G2＝L52/L4。

in the third embodiment, as shown in fig. 11 and 14, when 1F is the third base centrifugal wind rotor 1113 (double inlet centrifugal wind rotor), it is assumed that L51 of the centrifugal wind rotor 1F to be manufactured is 10, and L52 is 10; the third matrix centrifugal wind wheel 113 has L3 of 2 and L4 of 5; then, the number of the required impeller parts 2 is calculated by the formulas 1G 1-L51/L4 and 1G 2-L52/L4, and then the calculated number of the impeller parts 2 is connected with the third base centrifugal wind wheel 1113 by secondary processing according to the structural requirements, so that the 1F with the two-layer structure in the second embodiment can be manufactured.

In the first embodiment, the second embodiment and the third embodiment, a brand-new superposable and combinable structure is adopted mainly aiming at the centrifugal wind wheels with the same diameter, different heights and different rotating directions, the height of the centrifugal wind wheels is adjusted by changing the number of the impeller parts 2, and the centrifugal wind wheels with different structures (such as the centrifugal wind wheels with different heights rotating clockwise, the centrifugal wind wheels with different heights rotating anticlockwise and the centrifugal wind wheels with different heights and double wind inlets) are manufactured by changing the combination mode of the impeller parts 2 and the hub 1; the centrifugal wind wheel has the advantages that multiple centrifugal wind wheels with the same diameter, different heights and different air inlet modes can be manufactured through one set of die, die sinking cost is reduced, manufacturing cost is reduced, and product performance is improved.

Further, as shown in fig. 15, the manufacturing method of the centrifugal wind wheel includes the following steps:

step S10, determining the thickness L3 of the connection plane and the height L4 of the impeller part in the matrix centrifugal wind wheel 111, prefabricating the matrix centrifugal wind wheel 111: the hub 1 of the matrix centrifugal wind wheel 111 and the impeller part 2 consisting of the blades 21 and the tray 22 are manufactured by two sets of different molds, and the blades 21 and the tray 22 are manufactured by integrally molding the molds;

step S20, determining which structure of a first matrix centrifugal wind wheel 1111, a second matrix centrifugal wind wheel 1112 or a third matrix centrifugal wind wheel 1113 the centrifugal wind wheel 1F to be manufactured is; then 1G or 1G2 and 1G1 are calculated through formulas;

and step S30, connecting the impeller part 2 on the base centrifugal wind wheel 111 in a connecting mode according to the structure of 1F and the values of 1G or 1G2 and 1G1, so as to manufacture 1F.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the protective scope of the present patent claims.

Claims

1. A centrifugal wind wheel is characterized by comprising a hub (1) and an impeller part (2) consisting of blades (21) and a circular tray (22) playing a reinforcing role; the blades (21) and the tray (22) are integrally molded, and the blades (21) are uniformly or non-uniformly distributed on one end surface of the tray (22) by taking the axis of the tray (22) as a center and a circumference; the other end of the blade (21) is connected with one end surface of the hub (1) through secondary processing.

2. A centrifugal wind wheel according to claim 1, characterized in that the impeller parts (2) are one or more, respectively arranged on one or both end surfaces of the hub (1).

3. A centrifugal wind wheel according to claim 1, characterized in that the surface of the end of the tray (22) remote from the blades (21) is provided with reinforcing ribs (3) distributed uniformly or non-uniformly circumferentially around the axis of the tray (22); the reinforcing ribs (3) and the blades (21) are oppositely and alternately arranged on the tray (22);

when the impeller part (2) is connected with another impeller part (2), one end of the blade (21) of the impeller part (2), which is far away from the tray (22), is correspondingly connected with the reinforcing rib (3) of the other impeller part (2).

4. A centrifugal wind rotor according to claim 1, characterized in that the side of the blades (21) close to the axis is the inner blade edge (211) and the side far from the axis is the outer blade edge (212); the inner blade edge (211) is arc-shaped, and the outer blade edge (212) is straight; the distance between the inner circle and the outer circle of the tray (22) is L1; the distance between an endpoint A of the inner edge (211) of the blade and the inner circle of the tray (22) is 0.05-0.1L 1, and the distance between a midpoint B of the outer edge (212) of the blade and the outer circle of the tray (22) is 0.025-0.05L 1; the diameter of the hub (1) is equal to the outer diameter of the tray (22).

5. A centrifugal wind wheel according to claim 1, characterized in that the hub (1) comprises a connection plane (11) of circular ring structure connected with the blades (21) and a fixing seat (12) of concave structure connected with the connection plane (11); the inner circle radius of the connecting plane (11) is L2, and the inner circle radius of the tray (22) is 90-95% of L2; the end point A of the inner edge (211) of the blade is positioned at the inner side of the inner circle of the connecting plane (11), and the distance between the end point A and the inner circle of the connecting plane (11) is 0.03L 2.

6. A centrifugal wind wheel manufacturing method according to any one of claims 1 to 5, characterized in that a centrifugal wind wheel composed of a hub (1) and a single impeller part (2) or composed of a hub (1) and a hub (1) both ends of which surfaces are provided with a single impeller part (2) is a base centrifugal wind wheel (111).

7. Method for manufacturing a centrifugal rotor according to claim 6, characterized in that the base centrifugal rotor (111) comprises a first base centrifugal rotor (1111), a second base centrifugal rotor (1112) and a third base centrifugal rotor (1113);

the first base centrifugal wind wheel (1111) is a single-air-inlet centrifugal wind wheel rotating anticlockwise, and an impeller part (2) of the first base centrifugal wind wheel is positioned close to one end, connected with a motor rotating shaft, of the hub (1); the second matrix centrifugal wind wheel (1112) is a single-air-inlet centrifugal wind wheel rotating clockwise, and an impeller part (2) of the second matrix centrifugal wind wheel is positioned at one end far away from the hub (1) and connected with a motor rotating shaft; the third base body centrifugal wind wheel (1113) is a double-air-inlet centrifugal wind wheel, and both ends of a hub (1) of the third base body centrifugal wind wheel are provided with impeller parts (2);

the thickness of the connection plane (11) is L3, the height of the single impeller part (2) is L4, and the formula can be written as:

1G ═ (L5-L3)/L4, and the numerical values for 1G are in the integer part.

8. The method for manufacturing the centrifugal wind wheel according to claim 7, wherein when 1F is the first matrix centrifugal wind wheel (1111), 1G ═ (L5-L3)/L4; and when the 1F is the second matrix centrifugal wind wheel (1112), 1G is (L5-L3)/L4.

9. A method for making a centrifugal rotor according to claim 7, wherein when the 1F is a third matrix centrifugal rotor (1113), the formula can be written as follows:

wherein:

l51 is the height of 1F from its connection plane (11) to the left end;

l52 is the height of 1F from its connecting plane (11) to the right end;

l6 is the thickness of the 1F connection plane (11);

1G1 is the number of impeller parts (2) needed for manufacturing 1F from the connecting plane (11) to the left end;

1G2 is the number of impeller parts (2) needed for manufacturing 1F from the connecting plane (11) to the right end;

l5 ═ L51+ L52+ L6; the 1G-1G 1+1G 2;

1G1＝L51/L4，1G2＝L52/L4。

10. the manufacturing method of the centrifugal wind wheel according to any one of claims 6 to 9, characterized by comprising the following steps:

determining the thickness L3 of a connecting plane and the height L4 of an impeller part in the matrix centrifugal wind wheel 111, and prefabricating the matrix centrifugal wind wheel (111): the hub (1) of the matrix centrifugal wind wheel (111) and the impeller part (2) consisting of the blades (21) and the tray (22) are manufactured through two sets of different molds, and the blades (21) and the tray (22) are manufactured through an integrally molded mold;

determining which structure of a first matrix centrifugal wind wheel (1111), a second matrix centrifugal wind wheel (1112) or a third matrix centrifugal wind wheel (1113) is the centrifugal wind wheel 1F required to be manufactured; then 1G or 1G2 and 1G1 are calculated through formulas;

the impeller member (2) is connected to the base centrifugal rotor (111) by a connection method according to the structure of 1F and the values of 1G or 1G2 and 1G1, thereby producing 1F.