A noise-reducing three-phase synchronous motor

Abstract

The utility model discloses a noise reduction type three-phase synchronous motor, including a shell and an air outlet, the inner bottom wall of the shell is fixed with a motor body, and the motor body is a three-phase synchronous motor, the inner wall of the shell is fixed with sound-absorbing cotton, and the sound-absorbing cotton and the shell are bonded and fixed, a rotating shaft is arranged on the inner side of the motor body, an air inlet is arranged on one side outer wall of the shell, and the air outlet is arranged on the side outer wall of the shell away from the air inlet. Compared with the existing three-phase synchronous motor, the noise reduction type three-phase synchronous motor is provided with a silent noise reduction mechanism, which can effectively reduce the noise generated by the device, thereby avoiding the noise of the motor from interfering with the surrounding personnel, which is conducive to improving the practicality of the device, and at the same time, the device is provided with a shock absorbing mechanism, which can effectively reduce the vibration generated by the device, which can not only further reduce the noise of the device, but also avoid the loosening of parts and improve the service life of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet motors, in particular to a noise reduction type three-phase synchronous motor. Background Art

[0002] The three-phase synchronous motor is a type of AC rotating motor, named because its speed is always equal to the three-phase synchronous speed. Most existing three-phase synchronous motors do not have sound insulation, sound absorption and noise reduction mechanisms. During the operation of the three-phase synchronous motor, certain mechanical noise, electromagnetic noise or airflow noise will be generated, causing noise pollution to the surrounding area and even damaging the hearing health of people around.

[0003] The publication number authorized by China is CN215897417U, and it is called a patent for a new energy sinusoidal three-phase permanent magnet synchronous motor. The device includes a stator assembly, a rotor structure is arranged inside the stator assembly, an aluminum rear cover is fixedly connected to one side of the stator assembly, a rear bearing is arranged inside the aluminum rear cover, a magnetic encoder is fixedly connected to one side of the aluminum rear cover, a rear cover plate is fixedly connected to the outside of the aluminum rear cover, and an aluminum front cover is fixedly connected to the other side of the stator assembly, and a front bearing is arranged inside the aluminum front cover. The new energy sinusoidal three-phase permanent magnet synchronous motor is provided with a rotor core, a magnetic steel, a rotation prevention component, a motor shaft and a magnetic encoder magnetic steel. The magnetic steel of the rotor adopts an eight-shaped embedded method and is fixed with end plates on both sides. No glue is needed, which reduces costs, has a simple production process, streamlines the assembly process, and has a relatively low magnetic steel cost, avoiding the risk of magnetic steel loosening, reducing the overall production cost, and solving the problem of easy loosening of magnetic steel and complex assembly process.

[0004] Although the above device solves the problem of easy loosening of magnetic steel and complicated assembly process, there are still some problems in the use of the device:

[0005] 1. The device does not have a noise reduction mechanism. When the device is working, it will generate certain electromagnetic noise and mechanical noise, causing disturbance to people around.

[0006] 2. The device does not have a shock-absorbing mechanism. When the device is running, the vibration can easily cause parts of the device to loosen or deform, thereby reducing the service life of the device.

[0007] In view of the above situation, technical innovation is carried out on the basis of the existing three-phase synchronous motor. Utility Model Content

[0008] The purpose of the utility model is to provide a noise-reducing three-phase synchronous motor to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise-reducing three-phase synchronous motor, comprising a shell and an air outlet, a motor body is fixed to the inner bottom wall of the shell, and the motor body is a three-phase synchronous motor, sound-absorbing cotton is fixed to the inner wall of the shell, and the sound-absorbing cotton is bonded and fixed to the shell, a rotating shaft is provided on the inner side of the motor body, and cooling fans are fixed on both ends of the rotating shaft, an air inlet is opened on the outer wall of one side of the shell, and a dustproof net is fixed on the inner side of the air inlet, and the air outlet is opened on the outer wall of the shell on one side away from the air inlet.

[0010] Furthermore, a shielding layer is arranged outside the shell, and the shielding layer is made of a metal thin layer.

[0011] Furthermore, a shock-absorbing pad is fixed to the bottom end of the shell, and the shock-absorbing pad is made of silicone material.

[0012] Furthermore, a bottom plate is provided at the bottom end of the shock-absorbing pad, and the bottom plate and the shock-absorbing pad are bonded.

[0013] Furthermore, damping hydraulic rods are fixed on both left and right sides of the bottom end of the shell, and shock-absorbing springs are arranged outside the damping hydraulic rods.

[0014] Furthermore, both left and right ends of the base plate are provided with mounting components, and the mounting components include mounting bolts and nuts, and nuts are fixed to the bottom ends of the mounting bolts.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the device is provided with a silent noise reduction mechanism, which can effectively reduce the noise generated by the device, thereby avoiding the noise of the motor from interfering with the surrounding personnel, which is beneficial to improving the practicality of the device; at the same time, the device is provided with a shock absorbing mechanism, which can effectively reduce the vibration generated by the device, which can not only further reduce the noise of the device, but also avoid the loosening of parts and increase the service life of the device.

[0016] 1. The utility model is provided with a shell, a motor body, sound-absorbing cotton, a rotating shaft, a heat dissipation fan, an air inlet, a dust-proof net and an air outlet. The shell covers the motor body, which can effectively block the noise generated by the motor body. The sound-absorbing cotton can absorb the noise generated by the operation of the motor body, thereby further reducing the noise of the device. When the device is running, the rotation of the rotating shaft can drive the heat dissipation fan to rotate, so that air enters from the air inlet and flows out from the air outlet. In this process, the airflow can take away the heat generated by the motor body to avoid poor heat dissipation due to the excessive closure of the shell. The dust-proof net can prevent dust from being sucked into the inside of the device. The air outlet is also provided with a dust-proof net to prevent gas reflux from bringing dust into the inside of the device. Through the above structure, the noise generated by the device can be effectively reduced, thereby preventing the noise of the motor from interfering with the surrounding personnel, which is conducive to improving the practicality of the device.

[0017] 2. The utility model is provided with a shell, a shock-absorbing pad, a bottom plate, a damping hydraulic rod and a shock-absorbing spring. The shock-absorbing pad is made of silicone material, which can effectively absorb the kinetic energy generated by the vibration of the motor body. At the same time, the shock-absorbing spring can also absorb the kinetic energy generated by the operation of the motor body. The damping hydraulic rod can continuously consume the rebound force of the shock-absorbing spring when the shock-absorbing spring is compressed and stretched, thereby improving the shock-absorbing effect of the device. Through the above structure, the vibration generated by the device can be effectively reduced, which can not only further reduce the noise of the device, but also avoid loosening of parts and increase the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of a noise reduction three-phase synchronous motor of the utility model;

[0019] Figure 2 It is a front view cross-sectional structural schematic diagram of a noise reduction type three-phase synchronous motor of the utility model;

[0020] Figure 3 It is a partial front view enlarged structural schematic diagram of a shell, a shielding layer, a bottom plate, a damping hydraulic rod, a shock absorbing spring and a mounting assembly of a noise reduction type three-phase synchronous motor of the utility model.

[0021] In the figure: 1. Shell; 2. Motor body; 3. Sound-absorbing cotton; 4. Rotating shaft; 5. Cooling fan; 6. Air inlet; 7. Dust screen; 8. Air outlet; 9. Shielding layer; 10. Shock-absorbing pad; 11. Bottom plate; 12. Damping hydraulic rod; 13. Shock-absorbing spring; 14. Mounting assembly; 1401. Mounting bolt; 1402. Nut. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-3 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0023] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] like Figure 1 and Figure 2 As shown, a noise reduction type three-phase synchronous motor includes a shell 1 and an air outlet 8. The inner bottom wall of the shell 1 is fixed with a motor body 2, and the motor body 2 is a three-phase synchronous motor. The inner wall of the shell 1 is fixed with sound-absorbing cotton 3, and the sound-absorbing cotton 3 is bonded and fixed to the shell 1. A rotating shaft 4 is arranged on the inner side of the motor body 2, and cooling fans 5 are fixed on both the left and right ends of the rotating shaft 4. An air inlet 6 is opened on the outer wall of one side of the shell 1, and a dustproof net 7 is fixed on the inner side of the air inlet 6. The air outlet 8 is opened on the outer wall of the shell 1 away from the air inlet 6. The shell 1 covers the motor body 2, which can effectively block the noise generated by the motor body 2, and the sound-absorbing cotton 3 can absorb the noise generated by the working of the motor body 2. The noise generated can be reduced, thereby further reducing the noise of the device. When the device is running, the rotation of the shaft 4 can drive the cooling fan 5 to rotate, so that air enters from the air inlet 6 and flows out from the air outlet 8. In this process, the airflow can take away the heat generated by the motor body 2 to avoid poor heat dissipation due to the excessive closure of the shell 1. The dustproof net 7 can prevent dust from being sucked into the device. The air outlet 8 is also provided with a dustproof net 7 to prevent gas reflux from bringing dust into the device. Through the above structure, the noise generated by the device can be effectively reduced, thereby avoiding the noise of the motor from interfering with the surrounding personnel, which is conducive to improving the practicality of the device.

[0026] like Figure 1 and Figure 3As shown, a shielding layer 9 is provided on the outside of the shell 1, and the shielding layer 9 is made of a metal thin layer. A shock-absorbing pad 10 is fixed to the bottom end of the shell 1, and the shock-absorbing pad 10 is made of a silicone material. A bottom plate 11 is provided at the bottom end of the shock-absorbing pad 10, and the bottom plate 11 and the shock-absorbing pad 10 are bonded. Damping hydraulic rods 12 are fixed on both sides of the bottom end of the shell 1, and a shock-absorbing spring 13 is provided on the outside of the damping hydraulic rod 12. Mounting components 14 are provided on both ends of the bottom plate 11, and the mounting components 14 include mounting bolts 1401 and nuts 1402. The mounting bolts 1401 A nut 1402 is fixed to the bottom end, and the shock-absorbing pad 10 is made of silicone, which can effectively absorb the kinetic energy generated by the vibration of the motor body 2. At the same time, the shock-absorbing spring 13 can also absorb the kinetic energy generated by the operation of the motor body 2. The damping hydraulic rod 12 can continuously consume the rebound force of the shock-absorbing spring 13 when the shock-absorbing spring 13 is compressed and stretched, thereby improving the shock-absorbing effect of the device. Through the above structure, the vibration generated by the device can be effectively reduced, which can not only further reduce the noise of the device, but also avoid loosening of parts and increase the service life of the device.

[0027] In summary: when using the noise reduction three-phase synchronous motor, first, the motor body 2 is a three-phase synchronous motor, which is provided with a motor stator mechanism and a motor rotor mechanism inside, and the rotor is fixed to the rotating shaft 4. When the motor body 2 is energized, the rotor will drive the rotating shaft 4 to rotate under the action of electromagnetic force, thereby realizing power output, and the shielding layer 9 can shield the electromagnetic waves generated by the device to avoid interference with surrounding electrical appliances. The mounting assembly 14 can fix the device on the ground, wall or platform, etc. The shell 1 covers the motor body 2, which can effectively block the noise generated by the motor body 2, and the sound-absorbing cotton 3 can absorb the noise generated by the operation of the motor body 2, thereby further reducing the noise of the device. When the device is running, the rotation of the rotating shaft 4 can drive the cooling fan 5 to rotate. , so that air enters from the air inlet 6 and flows out from the air outlet 8. In this process, the airflow can take away the heat generated by the motor body 2 to avoid poor heat dissipation due to the excessive closure of the shell 1. The dustproof net 7 can prevent dust from being sucked into the device. The air outlet 8 is also provided with a dustproof net 7 to prevent gas reflux from bringing dust into the device. The shock-absorbing pad 10 is made of silicone material, which can effectively absorb the kinetic energy generated by the vibration of the motor body 2. At the same time, the shock-absorbing spring 13 can also absorb the kinetic energy generated by the operation of the motor body 2. The damping hydraulic rod 12 can continuously consume the rebound force of the shock-absorbing spring 13 when the shock-absorbing spring 13 is compressed and stretched, thereby improving the shock-absorbing effect of the device. This is the working principle of the noise-reducing three-phase synchronous motor.

[0028] The above are only preferred embodiments of the utility model, and do not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A noise-reducing three-phase synchronous motor, comprising a housing (1) and an air outlet (8), characterized in that: The inner bottom wall of the shell (1) is fixed with a motor body (2), and the motor body (2) is a three-phase synchronous motor. The inner wall of the shell (1) is fixed with sound-absorbing cotton (3), and the sound-absorbing cotton (3) is fixed to the shell (1) by bonding. A rotating shaft (4) is arranged on the inner side of the motor body (2), and cooling fans (5) are fixed on both left and right ends of the rotating shaft (4). An air inlet (6) is provided on the outer wall of one side of the shell (1), and a dustproof net (7) is fixed on the inner side of the air inlet (6). The air outlet (8) is arranged on the outer wall of the shell (1) on the side away from the air inlet (6).

2. A noise reduction three-phase synchronous motor according to claim 1, characterized in that: A shielding layer (9) is arranged on the outside of the shell (1), and the shielding layer (9) is made of a thin metal layer.

3. A noise reduction three-phase synchronous motor according to claim 1, characterized in that: A shock-absorbing pad (10) is fixed to the bottom end of the shell (1), and the shock-absorbing pad (10) is made of silica gel.

4. A noise reduction three-phase synchronous motor according to claim 3, characterized in that: A bottom plate (11) is provided at the bottom end of the shock absorbing pad (10), and the bottom plate (11) and the shock absorbing pad (10) are bonded.

5. A noise reduction three-phase synchronous motor according to claim 1, characterized in that: Damping hydraulic rods (12) are fixed on both left and right sides of the bottom end of the housing (1), and shock absorbing springs (13) are arranged outside the damping hydraulic rods (12).

6. A noise reduction three-phase synchronous motor according to claim 4, characterized in that: The left and right ends of the bottom plate (11) are both provided with mounting components (14), and the mounting components (14) include mounting bolts (1401) and nuts (1402), and the bottom ends of the mounting bolts (1401) are fixed with nuts (1402).

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