Generator fan

Abstract

The utility model belongs to the technical field of generators, and particularly relates to a generator fan. Comprising a fan bottom plate, a mounting part is arranged in the center of the fan bottom plate, a plurality of blades are evenly distributed on the upper plane of the fan bottom plate in the circumferential direction, the blades are vertically arranged, one end of each blade is connected with the fan bottom plate, and a wind power reinforcing ring is arranged on the outer ring of the other end; the wind direction of airflow is further changed and the airflow is decelerated by arranging the wind power reinforcing ring, so that the effect similar to that of a centrifugal fan is achieved, the wind power can be greatly increased, and the heat dissipation effect of the generator is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of generator, especially a generator fan. BACKGROUND

[0002] The fan of the generator mainly functions to disturb the flow of the gas in the generator, to exchange heat between the inside and the outside of the generator, to ensure the stability and uniformity of the temperature of the generator, and to cool the generator, so that the hot air at the position of the stator and rotor winding core is exchanged with the relatively cool air at the position of the ends of the winding.

[0003] The structure of the existing ordinary generator fan is that an air inlet is arranged on the fan bottom plate, and a plurality of blades are uniformly distributed on the upper surface of the fan bottom plate. The fan is driven to rotate by the motor after installation. The airflow enters axially from the air inlet and is changed into a radial direction by the blades. SUMMARY

[0004] The utility model discloses a kind of generator fans that can greatly increase wind force.

[0005] The utility model is implemented as follows:

[0006] A kind of generator fan, including fan bottom plate, the center of fan bottom plate is provided with installation part, there are a plurality of blades on the upper surface of fan bottom plate and are uniformly distributed in circumference, blade is vertically arranged, one end of blade is connected with fan bottom plate, and the outer circle of the other end is provided with wind force reinforcing ring.

[0007] In the above-mentioned one kind of generator fan, the fan bottom plate includes a circular ring bottom plate, two or more than two arc-shaped holes are distributed in the outer circle of the circular ring bottom plate, two blades are distributed in the two ends of the arc-shaped hole, arc-shaped plate is arranged in the upper of the arc-shaped hole, the shape of arc-shaped plate is same with the arc-shaped hole, the two ends of arc-shaped plate are formed on the blade in the two ends of arc-shaped hole, and the air inlet is formed between arc-shaped plate and circular ring bottom plate.

[0008] In the above-mentioned one kind of generator fan, the arc-shaped hole is provided with four, and the corresponding arc-shaped plate is provided with four.

[0009] In the above-mentioned one kind of generator fan, four blades are distributed on each arc-shaped hole, and two blades are further arranged between the blades in the two ends, so as to divide the air inlet into three.

[0010] In the above-mentioned one kind of generator fan, the installation part includes the cylindrical protrusion that extends in the direction of upper surface along the axial direction in the center of fan bottom plate, the annular mounting plate is arranged on the other end of cylindrical protrusion, and a plurality of mounting holes are distributed in circumference on the annular mounting plate.

[0011] In the above-mentioned one kind of generator fan, metal piece is pre-buried on the annular mounting plate, and mounting hole is arranged on the metal piece.

[0012] In the above-mentioned generator fan, the bottom surface of the annular mounting plate is provided with annular protrusions corresponding to the number and position of the mounting holes, the annular protrusions are coaxial with the mounting holes, and the height of the annular protrusions is equal to or less than the height of the cylindrical protrusions.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] 1、The utility model discloses a wind force reinforcing ring is further changed the wind direction of airflow and makes it decelerate, reaches the effect similar to centrifugal fan, can greatly increase the wind force, further improves the heat dissipation effect of generator.

[0015] 2、The utility model discloses that the mounting hole is arranged on the embedded metal piece, can increase the strength, prolongs the service life. DRAWINGS:

[0016] Figure 1 It is the front view schematic drawing of the utility model,

[0017] Figure 2 It is the back view schematic drawing of the utility model.

[0018] In the drawing: 1, fan bottom plate;2, mounting part;3, blade;4, wind force reinforcing ring;5, circular ring bottom plate;6, arc hole;7, arc plate;8, air inlet;9, cylindrical protrusion;10, annular mounting plate;11, mounting hole;12, metal piece;13, annular protrusion. CONCRETE IMPLEMENTATION:

[0019] The utility model will be further described below with specific embodiment, referring to Figure 1 -2:

[0020] The utility model provides a kind of generator fan, which comprises fan bottom plate 1, the center of fan bottom plate 1 is provided with mounting part 2, and the upper plane of fan bottom plate 1 is uniformly distributed with a plurality of blades 3, the blade 3 is vertically arranged, one end of the blade 3 is connected with fan bottom plate 1, and the outer circle of the other end is provided with wind force reinforcing ring 4, and a plurality of air inlets 8 are provided on the fan bottom plate.

[0021] It should be noted that fan bottom plate 1, mounting part 2, blade 3 and wind force reinforcing ring 4 are of an integrated structure.

[0022] Gas enters the blade 3 from the air inlet 8, changes to radial after flowing through the blade, and then further changes the direction of airflow and slows down through the wind force reinforcing ring, so as to achieve the effect similar to centrifugal fan, which can greatly increase the wind force.

[0023] Further, the fan bottom plate 1 comprises a circular bottom plate 5, two or more arc-shaped holes 6 are distributed in the outer circle of the circular bottom plate 5 in the circumferential direction, two blades 3 are distributed at the two ends of the arc-shaped holes 6, and an arc-shaped plate 7 is arranged above the arc-shaped holes 6 in a spaced manner, the shape of the arc-shaped plate 7 is the same as that of the arc-shaped hole 6, the two ends of the arc-shaped plate 7 are formed on the blades 3 at the two ends of the arc-shaped hole 6, and the arc-shaped plate 6 and the circular bottom plate 5 form an air inlet 8.

[0024] In the embodiment, the arc-shaped hole 6 is provided with four arc-shaped plates 7, and each arc-shaped hole 6 is provided with four blades 3, and two blades 3 are further arranged between the blades 3 at the two ends, so that the air inlet 8 is divided into three parts.

[0025] In addition, the mounting portion 2 comprises a cylindrical protrusion 9 extending in the axial direction towards the upward plane of the circular bottom plate 5, and a ring-shaped mounting plate 10 is arranged at the other end of the cylindrical protrusion 9, and a plurality of mounting holes 11 are distributed in the circumferential direction on the ring-shaped mounting plate 10.

[0026] Further, the ring-shaped mounting plate 10 is pre-buried with a metal piece 12, and the mounting hole 11 is arranged on the metal piece 12. Generally, the mounting hole 11 is a threaded hole, and arranging the threaded hole on the metal piece 12 can increase the strength and prevent the threaded hole from slipping.

[0027] The utility model discloses a ring-shaped protrusion 13 corresponding to the number and position of the mounting hole 11 is arranged on the bottom surface of the ring-shaped mounting plate 10, the ring-shaped protrusion 13 is coaxial with the mounting hole 11, and the height of the ring-shaped protrusion 13 is equal to or less than the height of the cylindrical protrusion 9. After installation, the head of the screw can be arranged inside the ring-shaped protrusion 13, effectively preventing the screw from loosening.

[0028] The above embodiment is only one of the preferred embodiments of the utility model, and does not limit the implementation range of the utility model, so that: all equivalent changes made according to the shape, structure and principle of the utility model should be covered in the protection range of the utility model.

Claims

1. An electric generator fan characterized by: The application relates to a fan bottom plate (1), the center of the fan bottom plate (1) is provided with a mounting part (2), a plurality of blades (3) are uniformly distributed on the upper plane of the fan bottom plate (1) in a circumferential direction, the blades (3) are vertically arranged, one end of the blades (3) is connected with the fan bottom plate (1), and a wind force reinforcing ring (4) is arranged at the outer circle of the other end of the blades (3).

2. A generator fan as claimed in claim 1, wherein: The fan bottom plate (1) comprises a circular ring-shaped bottom plate (5), two or more than two arc-shaped holes (6) are circumferentially distributed on the outer circle of the circular ring-shaped bottom plate (5), two blades (3) are distributed at the two ends of the arc-shaped holes (6), arc-shaped plates (7) are arranged above the arc-shaped holes (6) in a spaced mode, the arc-shaped plates (7) are identical in shape with the arc-shaped holes (6), the two ends of the arc-shaped plates (7) are formed on the blades (3) at the two ends of the arc-shaped holes (6), and the arc-shaped plates (7) and the circular ring-shaped bottom plate (5) form air inlets (8).

3. A generator fan as claimed in claim 2, wherein: The arc-shaped holes (6) are provided with four corresponding arc-shaped plates (7).

4. A generator fan as claimed in claim 2, wherein: Four blades (3) are distributed on each arc-shaped hole (6), two blades (3) are further arranged between the blades (3) at the two ends, and the air inlets (8) are divided into three parts.

5. A generator fan as claimed in any one of claims 2 to 4, wherein: The mounting part (2) comprises a cylindrical protrusion (9) extending in an axial direction towards the upper plane of the fan bottom plate (1), an annular mounting plate (10) is arranged at the other end of the cylindrical protrusion (9), and a plurality of mounting holes (11) are circumferentially distributed on the annular mounting plate (10).

6. A generator fan as claimed in claim 5, wherein: A metal piece (12) is pre-buried on the annular mounting plate (10), and the mounting holes (11) are arranged on the metal piece (12).

7. A generator fan as claimed in claim 6, wherein: The bottom surface of the annular mounting plate (10) is provided with annular protrusions (13) corresponding to the number and positions of the mounting holes (11) in a one-to-one mode, the annular protrusions (13) are coaxially arranged with the mounting holes (11), and the height of the annular protrusions (13) is equal to or smaller than the height of the cylindrical protrusion (9).

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