CN210599484U

CN210599484U - High-performance axial flow impeller

Info

Publication number: CN210599484U
Application number: CN201921078629.2U
Authority: CN
Inventors: 贾自周
Original assignee: Dongguan Hongying Electronic Technology Co Ltd
Current assignee: Dongguan Hongying Electronic Technology Co Ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-05-22
Anticipated expiration: 2029-07-11

Abstract

The utility model provides a high performance axial compressor impeller, including being hollow rectangle frame, rectangle frame middle part is equipped with and is annular inner wall, rectangle frame rear end middle part is equipped with the installation cover, its characterized in that, the installation cover four corners outwards extends branch and is connected with the rectangle frame, the rectangle frame front end middle part that the installation cover corresponds is equipped with the impeller wheel cover, the impeller wheel cover outside is that the annular array distributes and has the blade, impeller wheel cover and blade integrated into one piece, the outer edge of blade is continuous camber shape, the outer edge of blade is in the circular outer edge of different diameters and is gone up. The impeller reduces fluid leakage and eddy loss, improves fluid efficiency, and improves fan performance per unit volume.

Description

High-performance axial flow impeller

Technical Field

The utility model relates to a high performance axial compressor impeller.

Background

The volume of electronic products is smaller and smaller, so that the heat productivity of chips in unit volume is larger and larger, the performance of the fan is more important as a necessary heat dissipation element, and the performance optimization of the impeller which is a main working part of the fan is particularly important. The blades of an axial fan push air to flow in the same direction as the shaft. The impeller and the propeller of the axial flow fan are somewhat similar, and when the axial flow fan works, the flow direction of most of the airflow is parallel to the shaft, in other words, along the axial direction, as shown in fig. 5, the cambered surface of the outer edge of the blade of the conventional HY8025 impeller is on a circle with the same diameter Φ a1, so that the distance between the outer edge of the blade and the inner wall of the outer frame is consistent, fluid leakage and vortex loss are easily caused, and the fluid efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a high performance axial compressor impeller, reduce fluid leakage and eddy current loss, promote fluid efficiency, promote the performance of fan under the unit volume.

The utility model discloses a realize like this, a high performance axial compressor impeller, including being hollow rectangle frame, rectangle frame middle part is equipped with and is annular inner wall, rectangle frame rear end middle part is equipped with the installation cover, the outside branch that extends in installation cover four corners is connected with the rectangle frame, the rectangle frame front end middle part that the installation cover corresponds is equipped with the impeller wheel cover, the impeller wheel cover outside is that the annular array distributes and has the blade, impeller wheel cover and blade integrated into one piece, the outer edge of blade is continuous camber shape, the outer edge of blade is in the circular outer edge of different diameters and is gone up.

Preferably, the front end of the impeller cover is arranged in a round angle, the middle part of the inner side of the impeller cover is provided with a shaft core, and the inner wall of the impeller cover is provided with a magnetic ring.

Preferably, the blades are arranged obliquely on the surface of the impeller cover.

Preferably, the four corners of the rectangular outer frame are provided with mounting holes.

Preferably, the middle of the mounting sleeve is fixed with a shaft sleeve, the surface of the mounting sleeve outside the shaft sleeve is provided with a motor, the bottom of the motor is provided with a control circuit board, and the top of the motor is provided with a bearing.

Preferably, the shaft core is mounted in the shaft sleeve through a bearing.

Preferably, the outer edge of the blade and the inner wall of the blade are arranged at intervals.

Preferably, the center of the mounting sleeve is on the same horizontal straight line as the center of the impeller shroud.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: four corners of the arranged mounting sleeve extend outwards to form supporting rods to be connected with the rectangular outer frame, so that the blockage of an air inlet of the impeller can be reduced to the maximum extent, and the air inflow can be increased; the outer edge of the blade is in a continuous arc surface shape, the outer edge of the blade is located on the circular outer edges of different diameters, the distance between the outer edge of the blade and the inner wall is unequal, fluid leakage and eddy loss can be reduced, fluid efficiency is improved, and the performance of the fan under the unit volume is improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of the installation of a high-performance axial-flow impeller according to an embodiment of the present invention;

fig. 2 is a mounting structure diagram of a high-performance axial flow impeller provided by an embodiment of the present invention;

fig. 3 is a blade structure diagram of a high-performance axial flow impeller provided by an embodiment of the present invention;

fig. 4 is a graph comparing air volume and air pressure data of a high-performance axial-flow impeller provided by an embodiment of the present invention and a conventional HY8025 impeller in different rotation speed states;

fig. 5 is a blade configuration diagram of a conventional HY8025 impeller.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 3, the present embodiment provides a high performance axial flow impeller, which includes a rectangular outer frame 1 having a hollow shape, and the rectangular outer frame 1 has an advantage that the overall structure is stable during operation even if it is vertically placed. The middle part of the rectangular outer frame 1 is provided with an annular inner wall 2, and the inner wall 2 and the rectangular outer frame are integrally formed by the same material. The middle part of the rear end of the rectangular outer frame 1 is provided with a mounting sleeve 3, and the mounting sleeve 3 is used for mounting a motor. Supporting rods 4 extend outwards from four corners of the mounting sleeve 3 to be connected with the rectangular outer frame 1, the mounting sleeve 3 and the supporting rods 4 are integrally formed by the same material, and the connecting positions of the connecting rods 4 and the rectangular outer frame 1 are rigidly connected. The advantage of the strut 4 is that the position of the mounting sleeve 3 can be fixed, and at the same time the blocking of the air inlet space of the inner wall 2 can be reduced. The impeller cover 5 is arranged in the middle of the front end of the rectangular outer frame 1 corresponding to the mounting sleeve 3, blades 6 are distributed on the outer side of the impeller cover 5 in an annular array mode, the impeller cover 5 and the blades 6 are integrally formed, the blades 6 and the impeller cover 5 are integrally formed by the same materials, and the overall shape of the blades 6 is bent in an arc shape. The outer edge of the blade 6 is in a continuous arc shape, the outer edge of the blade 6 is positioned on the circular outer edges with different diameters, so that gaps between the outer edge of the blade 6 and the inner wall 2 are unequal when the outer edge rotates, a fall is formed, and therefore secondary flow and leakage loss of the fan are reduced, the specific shape of the outer edge of the blade 6 is shown in figure 3, and the outer edge of the blade 6 is positioned on three circles with different diameters phi A, phi B and phi C.

The front end of the impeller cover 5 is arranged in a fillet mode, so that the surface of the impeller cover 5 is smooth in the rotating process, resistance to gas discharge is reduced, a shaft core 9 is arranged in the middle of the inner side of the impeller cover 5, a groove is formed in the joint of the impeller cover 5 and the shaft core 9, one end of the shaft core 9 can be fixed, a magnetic ring 10 is arranged on the inner wall of the impeller cover 5, the magnetic ring 10 can be driven by silicon steel sheets on the electrified motor 8, and the magnetic ring 10 and the impeller cover 5 rotate as a rotor.

The blades 6 are obliquely arranged on the surface of the impeller cover 5, so that the occupied space of the blades 6 in the rectangular outer frame 1 can be reduced, the blades 4 with larger area can be installed in the rectangular outer frame 1 with the same volume, and the specific installation angle can be selected according to actual requirements.

The four corners of the rectangular outer frame 1 are provided with mounting holes 7, the mounting holes 7 are used for mounting long screws, and the whole structure of the rectangular outer frame 1 can be assembled.

The middle part of the installation sleeve 3 is fixed with a shaft sleeve 11, the surface of the installation sleeve 3 outside the shaft sleeve 11 is provided with a motor 8, a control circuit board 12 (used for controlling the voltage of the motor 8) is installed at the bottom of the motor 8, the motor 8 is fixed on the control circuit board 12, the control circuit board 12 is fixed on the installation sleeve 3, a bearing 13 is installed at the top of the motor (8), the bearing 13 is arranged in a concave hole at the middle part of the motor 8 along the outer edge of the bearing, and the motor 8, the bearing 13 and the shaft sleeve 11 serve as a whole stator for driving a rotor to rotate.

The shaft core 9 penetrates through the bearing 13 to be installed in the shaft sleeve 11, and the shaft core 9 is sleeved in the shaft sleeve 11 and can freely rotate.

The outer edge of the blade 6 and the inner wall 2 are arranged at intervals, so that the blade 6 is kept from contacting the inner wall 2 in the rotating process, the abrasion of the blade is avoided, and the rotating friction force of the blade 6 is reduced.

The center of the mounting sleeve 3 and the center of the impeller cover 5 are positioned on the same horizontal straight line, so that the impeller cover 5 is stable and reliable in the transmission process and cannot deviate.

Experimental example 1

Through comparing the impeller of this embodiment and current HY8025 impeller under the state that specification, voltage, electric current and rotational speed are the same, compare the performance of impeller, the test distance is 1m, obtains following data:

by comparison, compared with the conventional HY8025 impeller, the impeller of the present embodiment has an increased air volume by 5.7% under the same noise.

Experimental example 2

Comparing the air volume and the air pressure data of the impeller of the embodiment and the conventional HY8025 impeller under different rotation speed states (the other conditions are the same as those of experimental example 1), the following data are obtained:

as shown in fig. 4, it can be seen by comparison that the impeller of the present embodiment has a higher air volume than the conventional HY8025 impeller in different rotation speeds.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a high performance axial compressor impeller, is including being hollow rectangle frame (1), rectangle frame (1) middle part is equipped with and is annular inner wall (2), rectangle frame (1) rear end middle part is equipped with installation cover (3), its characterized in that, installation cover (3) four corners outwards extends branch (4) and is connected with rectangle frame (1), rectangle frame (1) front end middle part that installation cover (3) correspond is equipped with impeller shroud (5), impeller shroud (5) outside is annular array and distributes and have blade (6), impeller shroud (5) and blade (6) integrated into one piece, the outer edge of blade (6) is continuous camber shape, the outer edge of blade (6) is located on the circular outer edge of different diameters.

2. The axial-flow impeller with high performance as claimed in claim 1, wherein the front end of the impeller cover (5) is rounded, the central part of the inner side of the impeller cover (5) is provided with a shaft core (9), and the inner wall of the impeller cover (5) is provided with a magnetic ring (10).

3. A high performance axial flow impeller according to claim 1, wherein said blades (6) are arranged obliquely on the surface of the impeller shroud (5).

4. A high performance axial flow impeller according to claim 1, wherein the rectangular outer frame (1) is provided with mounting holes (7) at four corners.

5. The high-performance axial flow impeller as claimed in claim 1, wherein a shaft sleeve (11) is fixed in the middle of the mounting sleeve (3), a motor (8) is arranged on the surface of the mounting sleeve (3) outside the shaft sleeve (11), a control circuit board (12) is installed at the bottom of the motor (8), and a bearing (13) is installed at the top of the motor (8).

6. A high performance axial flow impeller according to claim 2, wherein the shaft core (9) is mounted in the shaft sleeve (11) through bearings (13).

7. A high performance axial flow impeller according to claim 1, wherein the outer edge of the blades (6) is spaced from the inner wall (2).

8. A high performance axial flow impeller according to claim 1, characterized in that the center of the mounting sleeve (3) is in the same horizontal straight line as the center of the impeller shroud (5).