High-efficiency low-noise motor cooling fan

Abstract

The utility model relates to a high-efficiency low-noise motor cooling fan which comprises a wind shield, a fan hub and parabola-shaped fan blades. An air inlet is formed in the middle of the wind shield, and a flat annular assembly hole is formed in the middle of the fan hub so as to better adapt to a motor shaft to improve installation stability. The fan blades are connected with the fan hub and the wind shield, and the parabola shape of the fan blades can reduce airflow resistance and noise. Concave plates and reinforcing columns are arranged on the periphery of the fan hub to enhance structural strength, the ring diameter of the fan hub is smaller than the aperture of the air inlet, and air inlet resistance is reduced. By optimizing the fan blades, the fan hub and the assembly structure, the heat dissipation efficiency of the heat dissipation fan is remarkably improved, the operation noise is reduced, and the high-performance requirement of the heat dissipation end of the motor is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to electromechanical equipment product parts field, concretely to a high -efficient low noise motor cooling fan. BACKGROUND

[0002] The conventional motor cooling fan has the problems of big noise and low heat dissipation efficiency in the operation process, the blade design and the hub structure are not good for airflow guiding effect, which leads to increased wind resistance and easy vortex noise. In addition, the assembly hole structure of the conventional fan is single, and the adaptability with the motor shaft is insufficient, which easily leads to unstable installation or vibration, affecting the heat dissipation performance and service life. Therefore, a heat dissipation fan design with optimized structure, lower noise and higher heat dissipation efficiency is urgently needed. SUMMARY

[0003] The utility model discloses a high -efficient low noise motor cooling fan to solve the technical problem in the above -mentioned background art.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: a kind of high -efficient low noise motor cooling fan, including cooling fan body, the cooling fan body includes the wind baffle of outer layer arrangement and the fan hub of inner layer arrangement, the middle part of the wind baffle is equipped with air inlet, and the interlayer between the wind baffle and fan hub is equipped with fan blade and is connected by fan blade.

[0005] The middle part of the fan hub is equipped with assembly hole, and the assembly hole is an annular hole with flat sides on both sides.

[0006] Preferably, one end of the fan blade is connected to the fan hub, and the other end is connected to the wind baffle. The fan blade is in a parabolic shape.

[0007] Preferably, the middle part of the fan hub is provided with a recessed plate on one side outward. The middle part of the recessed plate is provided with the assembly hole.

[0008] Preferably, the assembly hole is provided with a reinforcing column on the circumferential periphery. The reinforcing column extends outward from the middle part. The reinforcing column is provided on the recessed plate.

[0009] Preferably, the outer diameter of the fan hub is smaller than the diameter of the air inlet.

[0010] Preferably, the cooling fan body is assembled on the heat dissipation end of the motor body when in use.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. Adopting parabolic fan blade, optimizing air flow path, reducing wind and blade friction, reducing wind resistance and vortex noise, improving heat dissipation efficiency, at the same time, reducing wind friction of motor, effectively improving motor efficiency;

[0013] 2. Flat ring assembly hole design enhances the adaptability with motor shaft, improves installation stability, reduces operation vibration, fan hub adopts two flat design, installed on two flat shaft, easy and reliable installation;

[0014] 3. The structure is provided with a baffle, a middle circular hole is hollowed out as an air inlet, air enters from the air inlet, is pushed by the parabolic fan blade and under the action of the baffle, so that the entering air is not divergent and directly blows forward, the air volume is concentrated, and the heat dissipation effect is good;

[0015] 4. The fan hub is provided with a reinforcing column and a recessed plate structure on the periphery, improving the overall mechanical strength and prolonging the service life;

[0016] 5. The hub ring diameter is smaller than the air inlet hole diameter, reducing the air inlet resistance, further reducing the noise and improving the air inlet volume.

[0017] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the heat dissipation fan body of the present application;

[0020] Figure 2 It is a schematic diagram of the back structure of the present application; Figure 1

[0021] Figure 3 It is a front view of the present application; Figure 1

[0022] Figure 4 It is a schematic diagram of the structure of the heat dissipation fan body assembled behind the motor body.

[0023] In the drawings, the components represented by each reference numeral are listed as follows:

[0024] ​​The heat dissipation fan body (100), the baffle (101), the fan hub (102), the air inlet (103), the fan blade (104), the concave plate (105), the reinforcing column (106), and the assembly hole (107);

[0025] The motor body (200). DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of high efficiency low noise motor heat dissipation fan, including heat dissipation fan body 100, the heat dissipation fan body 100 includes outer layer arrangement baffle 101 and inner layer arrangement fan hub 102, the middle part of the baffle 101 is equipped with air inlet 103, the interlayer between the baffle 101 and fan hub 102 is equipped with fan blade 104, and is connected by fan blade 104, one end of fan blade 104 is connected on the fan hub 102, the other end is connected on the baffle 101, fan blade 104 is arranged in parabolic shape, fan blade 104 adopts parabolic design, after fan blade 104 rotates, the resistance of blade reduces, the wind friction loss of motor body 200 reduces, effectively improves motor efficiency, while the friction of wind and fan blade 104 reduces, and wind noise is effectively reduced too;

[0028] The middle part of the fan hub 102 is equipped with assembly hole 107, the assembly hole 107 is annular hole that two sides are flat, this design can enhance the adaptability with motor shaft, improve installation stability, reduce running vibration, fan hub adopts two sides flat design, and is installed to two sides flat shaft, and installation is convenient and reliable;

[0029] The middle part of the fan hub 102 is equipped with the concave plate 105 to one side outward, the middle part of the concave plate 105 is equipped with the assembly hole 107, the circumferential periphery of the assembly hole 107 is equipped with reinforcing column 106, the reinforcing column 106 extends outward from the middle part, the reinforcing column 106 is arranged on the concave plate 105, and the reinforcing column and the concave plate structure are arranged on the periphery of fan hub 102, so that the overall mechanical strength can be improved, and the service life is prolonged;

[0030] The hub outer diameter of the fan hub 102 is less than the outer diameter of the air inlet 103, so that the air inlet resistance can be reduced;

[0031] When assembled, the heat dissipation fan body 100 is mounted on the heat dissipation end of the motor body 200, air enters the air inlet 103, is pushed by the parabolic fan blade 104, and is blown directly forward under the action of the baffle 101, so that the air volume is concentrated and the heat dissipation effect is good.

[0032] One specific application of the embodiment is that the heat dissipation fan is fixed on the heat dissipation end of the motor through the flat ring-shaped assembly hole in the middle of the fan hub 102; when running, the motor body 200 drives the fan hub 102 to rotate, drives the parabolic fan blade 104 to rotate around the shaft, the unique parabolic structure of the fan blade 104 can guide air flow to be efficiently sucked from the air inlet 103, and the air flow is smoothly accelerated and discharged along the curved surface of the fan blade 104, so that air flow separation and vortex formation are reduced, and noise is reduced. At the same time, the recessed plate 105 and the reinforcing column 106 structure enhance the rigidity of the hub, and ensure the stability during high-speed operation. The size matching design of the fan hub 102 and the air inlet 103 further optimizes the air inlet efficiency, and realizes the balance of low noise and high heat dissipation performance.

[0033] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A high-efficiency, low-noise motor cooling fan, characterized in that: The device includes a cooling fan body (100), which includes an outer baffle plate (101) and an inner fan hub (102). The baffle plate (101) has an air inlet (103) in the middle. Fan blades (104) are provided between the baffle plate (101) and the fan hub (102) and are connected by the fan blades (104). The fan hub (102) has a mounting hole (107) in the middle, which is an annular hole with flat sides.

2. The high-efficiency, low-noise motor cooling fan according to claim 1, characterized in that: One end of the fan blade (104) is connected to the fan hub (102), and the other end is connected to the baffle plate (101). The fan blade (104) is parabolic in shape.

3. The high-efficiency, low-noise motor cooling fan according to claim 2, characterized in that: The fan hub (102) has a recessed plate (105) facing outward in the middle, and the mounting hole (107) is provided in the middle of the recessed plate (105).

4. The high-efficiency, low-noise motor cooling fan according to claim 3, characterized in that: The assembly hole (107) is provided with a reinforcing post (106) around its circumference. The reinforcing post (106) extends outward from the center and is disposed on the recessed plate (105).

5. A high-efficiency, low-noise motor cooling fan according to any one of claims 1-4, characterized in that: The outer diameter of the fan hub (102) is smaller than the diameter of the air inlet.

6. A high-efficiency, low-noise motor cooling fan according to claim 5, characterized in that: The cooling fan body (100) is mounted on the heat dissipation end of the motor body (200) during use.

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