Novel violent fan motor

Abstract

The utility model relates to the technical field of motors, in particular to a novel violent fan motor, which comprises a casing, a fan, a rotor assembly and a stator assembly, the fan, the rotor assembly and the stator assembly are positioned in the casing and are sequentially arranged along the axial direction of the casing, two ends of the rotor assembly are respectively inserted in the fan and the stator assembly, and one end of the casing far away from the fan is an air inlet. According to the utility model, the air inlet and the air outlet are arranged at the end where the fan is located, and an inverted air inlet and outlet direction is formed, so that the air blown out by the fan is directly discharged into the atmosphere, the huge eddy noise generated by the air flowing through the PCB in the traditional design is avoided, and meanwhile, the air flowing into the shell and flowing through the PCB does not impact the PCB, so that the air quality is improved, and the service life of the air conditioner is prolonged. In addition, a closed conical cavity is formed by the first baffles, air flow is preliminarily concentrated and guided, the air collecting cover is evenly divided into a plurality of air outlet channels by the second baffles, the air flow is more evenly distributed, the air collecting efficiency is improved, and therefore the noise level is lowered.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, especially a new -type violent fan motor. BACKGROUND

[0002] In the prior art, violent fan motor as a kind of high-efficiency heat dissipation device, is widely used in various occasions needing forced heat dissipation, such as server, data center, industrial equipment etc. The traditional violent fan motor design usually from fan end air intake, machine shell iron core end air outlet, this design way although can meet the heat dissipation demand to some extent, but there are some obvious defects.

[0003] Firstly, the wind blown by traditional violent fan motor can pass through PCB board and other electronic components, although it can cool these components to a certain extent, but also brings greater eddy current noise. Eddy current noise not only affects the running environment of equipment, but also can adversely affect the stability and service life of equipment.

[0004] Secondly, the air intake and outlet design of traditional violent fan motor limits the space utilization of the whole machine. Since three-phase power line needs to be bent to bypass the machine shell and connect the whole machine control panel, it not only increases the consumption and complexity of power line, but also can affect the service life of power line. At the same time, the bent power line also occupies valuable whole machine space, making it difficult to further reduce the design size of the whole machine.

[0005] In addition, the air intake resistance of traditional violent fan motor is large, which affects the working capacity of fan. The increase of air intake resistance not only reduces the heat dissipation efficiency of fan, but also increases the energy consumption and noise of fan.

[0006] Therefore, the present application develops a new type of violent fan motor to solve the problems existing in the prior art. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a new type of violent fan motor to solve the problem of large eddy current noise generated in the running process of violent fan motor in the prior art.

[0008] The technical scheme of the utility model is: a new type of violent fan motor, comprising: a machine shell, and a fan, a rotor assembly and a stator assembly located in the machine shell and arranged in sequence along the axial direction of the machine shell, both ends of the rotor assembly are respectively inserted into the fan and the stator assembly, one end of the machine shell away from the fan is an air inlet, and the end where the fan is located is an air outlet, forming inverted air intake and outlet direction.

[0009] Preferably, the housing has a first accommodating cavity and a second accommodating cavity, the stator assembly is located in the first accommodating cavity, the fan and the rotor assembly are both located in the second accommodating cavity, the rotor assembly has a hub diameter D1, the housing has a hub diameter D2, and the fan has a hub diameter D0, and the relationship among the three is D0=D1<D2, so that the remaining cross-sectional area of the first accommodating cavity is smaller than that of the second accommodating cavity.

[0010] Preferably, the housing is provided with a wind collecting cover near one end of the fan, the wind collecting cover has a circular truncated cone structure, and the wind discharged from the fan is discharged into the atmosphere.

[0011] Preferably, the angle between the outer wall surface of the wind collecting cover and the horizontal axis is θ1, and the angle between the hub wall surface of the wind collecting cover and the horizontal axis is θ2, wherein 10°≤θ1<θ2≤30°, and θ2-θ1>5°.

[0012] Preferably, the wind collecting cover is provided with a first baffle plate arranged along the axis thereof and a plurality of second baffle plates uniformly distributed in the circumferential direction of the first baffle plate, the first baffle plate forms a closed conical cavity, and the plurality of second baffle plates divide the wind collecting cover into a plurality of air outlet channels.

[0013] Preferably, the stator assembly is connected with a three-phase power line, and the three-phase power line is directly connected with an external control panel.

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

[0015] (1) The air inlet and outlet directions are arranged in an inverted manner, so that the air blown by the fan is directly discharged into the atmosphere, avoiding the great vortex noise caused by the air flowing through the PCB in the traditional design, and the gas flowing into the housing and flowing through the PCB will not impact the PCB, but the flowing gas can still effectively cool the PCB.

[0016] (2) The remaining cross-sectional area of the second accommodating cavity is large, which is beneficial to forming a more smooth air flow path in the housing, reducing the resistance and turbulence in the air flow, thereby reducing the vibration and noise generated by the fan when rotating at high speed, and when the air enters the channel with a large cross-sectional area from the channel with a small cross-sectional area, the pressure will be smaller, and the flow will be more uniform, further reducing the generation of noise.

[0017] (3) In the wind collecting cover, the first baffle plate forms a closed conical cavity to preliminarily concentrate and guide the airflow, and the plurality of second baffle plates uniformly divide the wind collecting cover into a plurality of air outlet channels, so that the airflow is more uniformly distributed, the wind collecting efficiency is improved, and the noise level is reduced.

[0018] (4) The inverted air inlet and outlet structure is arranged, so that the motor stator assembly is closer to the control panel in the whole machine, so that the three-phase power supply lines of the stator assembly do not need to be bent to bypass the shell to connect the control panel, thereby simplifying the circuit layout, improving the structural space utilization rate of the whole machine, and avoiding the turbulence influence of the power supply lines on the airflow. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described below in combination with the drawings and embodiments:

[0020] Figure 1 It is a side sectional view of the novel violent fan motor according to the utility model;

[0021] Figure 2 It is an exploded schematic view of the novel violent fan motor according to the utility model;

[0022] Figure 3 It is a perspective view of the novel violent fan motor according to the utility model;

[0023] Figure 4 It is a structural schematic view of the air collecting cover according to the utility model.

[0024] Wherein: 1, the shell; 11, the first containing cavity; 12, the second containing cavity; 2, the fan; 3, the rotor assembly; 4, the stator assembly; 5, the air collecting cover; 51, the first baffle; 52, the second baffle; 53, the conical cavity; 6, the air inlet; 7, the air outlet. DETAILED DESCRIPTION

[0025] The content of the utility model will be further described in detail in combination with specific embodiments:

[0026] As shown in the drawings, Figures 1-4 A novel violent fan 2 motor, comprising a shell 1 and a fan 2, a rotor assembly 3 and a stator assembly 4 located inside the shell 1, and the fan 2, the rotor assembly 3 and the stator assembly 4 are sequentially arranged along the axial direction of the shell 1, wherein the two ends of the rotor assembly 3 are respectively inserted into the fan 2 and the stator assembly 4 to realize stable connection and operation, in this embodiment, when the rotor assembly 3 starts to rotate, the fan 2 is driven to rotate, the air enters from the end of the shell 1 away from the fan 2 and is discharged from the position of the fan 2, at this time, the end of the shell 1 away from the fan 2 is the air inlet 6, and the end where the fan 2 is located is the air outlet 7, thereby forming an inverted air inlet and outlet direction, and the air blown by the violent fan motor of the inverted design is no longer passed through the PCB board, but is directly discharged into the atmosphere, thereby avoiding the huge vortex noise caused by the air flowing through the PCB board in the traditional design, at the same time, the gas flowing into the shell 1 and flowing through the PCB board will not impact the PCB board, but the flowing gas can still effectively cool the PCB board.

[0027] In this embodiment, the inside of the casing 1 is divided into a first accommodating cavity 11 and a second accommodating cavity 12, wherein the stator assembly 4 is arranged in the first accommodating cavity 11, and the fan 2 and the rotor assembly 3 are jointly arranged in the second accommodating cavity 12. Specifically, the diameter of the hub of the rotor assembly 3 is D1, the diameter of the hub of the casing 1 is D2, and the diameter of the hub of the fan 2 is D0, and the relationship between the three is D0=D1<D2, so that the remaining cross-sectional area of the first accommodating cavity 11 is smaller than that of the second accommodating cavity 12. Since the remaining cross-sectional area of the second accommodating cavity 12 is larger, it provides more space for the fan 2 and the rotor assembly 3, which is conducive to forming a smoother air flow path, reducing air flow resistance and turbulence, reducing vibration and noise generated by the fan 2 when rotating at high speed, improving air flow efficiency, and the smaller remaining cross-sectional area of the first accommodating cavity 11 makes the stator assembly 4 more compact and stable. At the same time, because the air enters the channel with a small cross-sectional area into the channel with a large cross-sectional area, the pressure generated by the wind will decrease, and the flow of the wind will be more uniform, thereby reducing the generation of noise.

[0028] Further, the casing 1 is provided with a collector 5 near one end of the fan 2, and the collector 5 is in the shape of a circular truncated cone. Specifically, the angle between the outer wall surface of the collector 5 and the horizontal axis is θ1, and the angle between the hub wall surface of the collector 5 and the horizontal axis is θ2, wherein 10°≤θ1<θ2≤30°, and θ2-θ1>5°. The angles θ1 and θ2 between the outer wall surface of the collector 5 and the horizontal axis and the hub wall surface and the horizontal axis determine the angle of the airflow guide together. By adjusting θ1 and θ2, the flow direction of the airflow can be optimized, so that the air discharged from the fan 2 can be more smoothly discharged into the atmosphere, reducing the resistance and turbulence of the airflow, and more conducive to concentrating and guiding the airflow. Moreover, it can further optimize the air collecting efficiency of the collector 5, so that more air can be effectively collected and discharged, thereby optimizing the airflow guide and reducing the turbulence and impact of the air flow, thereby reducing the noise level of the motor while improving the heat dissipation effect of the motor.

[0029] In order to reduce the noise level, as shown in Figures 3-4 a first baffle 51 and a plurality of second baffles 52 uniformly distributed along the circumference of the first baffle 51 are arranged along the axis of the collector 5. The first baffle 51 forms a closed conical cavity 53, which preliminarily concentrates and guides the airflow discharged from the fan 2 to flow along the axis of the collector 5. The plurality of second baffles 52 uniformly divide the collector 5 into a plurality of air outlet channels, so that the airflow is more uniformly distributed in each channel, which helps to reduce the resistance at the outlet of the airflow and improve the air collecting efficiency, thereby reducing the noise level. At the same time, the plurality of air outlet channels can also increase the outlet area of the airflow and improve the discharge speed of the airflow.

[0030] Further, the stator assembly 4 is connected with three-phase power lines, and the three-phase power lines are directly connected with an external control panel, so that the stator assembly 4 is closer to the control panel in the whole machine, and the three-phase power lines of the stator assembly 4 do not need to be bent to bypass the machine shell to be connected with the control panel, so that the step of the power lines bypassing the machine shell 1 is omitted, thereby simplifying the circuit layout, improving the structural space utilization of the whole machine, avoiding the influence of the power lines on the airflow, and improving the heat dissipation efficiency.

[0031] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A new type of brute force fan motor characterized in that, The utility model relates to a kind of motor, including: Casing (1), and fan (2) located in the casing (1), rotor assembly (3) and stator assembly (4) are sequentially arranged along the casing (1) axially, both ends of the rotor assembly (3) are respectively inserted in the fan (2) and the stator assembly (4), the end of the casing (1) away from the fan (2) is air inlet (6), the end of the fan (2) is air outlet (7), forming inverted air inlet and outlet direction.

2. A new type of brute force fan motor as claimed in claim 1, wherein: The casing (1) has first containing cavity (11) and second containing cavity (12) in it, the stator assembly (4) is located in the first containing cavity (11), the fan (2) and the rotor assembly (3) are located in the second containing cavity (12), the hub diameter of the rotor assembly (3) is D1, the hub diameter of the casing (1) is D2, the hub diameter of the fan (2) is D0, and the relationship between the three hubs is D0=D1<D2, so that the remaining cross-sectional area of the first containing cavity (11) is less than the remaining cross-sectional area of the second containing cavity (12).

3. A new type of brute force fan motor as claimed in claim 1, wherein: The end of the casing (1) close to the fan (2) is installed with wind collecting hood (5), the wind collecting hood (5) is circular truncated cone structure, and the wind discharged from the fan (2) is discharged into atmosphere.

4. A new type of brute force fan motor as claimed in claim 3, characterized by: The angle between the outer wall surface of the wind collecting hood (5) and horizontal axis is θ1, the angle between the inner wall surface of the hub of the wind collecting hood (5) and horizontal axis is θ2, wherein, 10°≤θ1<θ2≤30°, and θ2-θ1>5°.

5. A new type of brute force fan motor as claimed in claim 3, characterized by: The first baffle (51) and multiple second baffles (52) are arranged along the axis of the wind collecting hood (5), the first baffle (51) forms airtight conical cavity (53) in it, and multiple second baffles (52) divide the wind collecting hood (5) into multiple air outlet channels.

6. A new type of brute force fan motor as claimed in claim 1, characterized by: The stator assembly (4) is connected with three-phase power line, and the three-phase power line is directly connected with external control panel.

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