阅读说明：本技术 一种三相异步电机的降温降噪结构 (Cooling and noise reducing structure of three-phase asynchronous motor ) 是由 陈灵峰 于 2020-06-19 设计创作，主要内容包括：本发明公开了一种三相异步电机的降温降噪结构,包括壳体,所述壳体左端通过焊接固定安装有第一左端盖,第一左端盖用于对三相异步电机内部零件的保护,所述第一左端盖中心位置固定安装有转轴,转轴是三相异步电机的主要工作部件,所述壳体左侧末端位置通过螺纹固定安装有第二左端盖,第二左端盖具有防尘,防撞击和保护人身安全的作用,所述壳体下表面通过焊接固定安装有若干电机支架,电机支架用于支撑三相异步电机,所述电机支架的另一端通过螺纹固定安装有安装底板,安装底板用于固定和连接三相异步电机,所述壳体底部下表面和安装底板之间固定安装有底座箱体。本发明通过降温风扇和特殊结构帮助三相异步电机进行降温降噪处理。(The invention discloses a cooling and noise-reducing structure of a three-phase asynchronous motor, which comprises a shell, wherein a first left end cover is fixedly arranged at the left end of the shell through welding and used for protecting internal parts of the three-phase asynchronous motor, the center of the first left end cover is fixedly provided with a rotating shaft which is a main working part of the three-phase asynchronous motor, the end position of the left side of the shell is fixedly provided with a second left end cover through threads, the second left end cover has the functions of dust prevention, impact prevention and personal safety protection, the lower surface of the shell is fixedly provided with a plurality of motor brackets by welding, the motor brackets are used for supporting a three-phase asynchronous motor, the other end of the motor support is fixedly provided with a mounting bottom plate through threads, the mounting bottom plate is used for fixing and connecting the three-phase asynchronous motor, and a base box body is fixedly arranged between the lower surface of the bottom of the shell and the mounting bottom plate. The cooling fan and the special structure help the three-phase asynchronous motor to carry out cooling and noise reduction treatment.)

1. The utility model provides a structure of making an uproar falls in cooling of three-phase asynchronous machine, includes casing (1), its characterized in that: the cooling fan is characterized in that a first left end cover (3) is arranged at the left end of the shell (1) through welding and fixing, a fan cover (2) is arranged at the tail of the right end of the shell (1) through thread fixing, a rotating shaft (6) is fixedly arranged at the center of the first left end cover (3), a second left end cover (4) is arranged at the left end of the shell (1) through thread fixing, a plurality of motor supports (8) are arranged on the lower surface of the shell (1) through welding and fixing, a mounting bottom plate (7) is arranged at the other end of each motor support (8) through thread fixing, a base box body (11) is fixedly arranged between the lower surface of the bottom of the shell (1) and the mounting bottom plate (7), a second cooling fan (10) is arranged on the inner lower surface of the base box body (11) through thread fixing, an outer wall layer (12) is fixedly arranged inside the shell (1), and sound insulation cotton (13) is fixedly arranged on the lower surface of the outer wall layer (12), and an inner wall layer (15) is fixedly arranged on the outer surface of the soundproof cotton (13).

2. The cooling and noise reduction structure of the three-phase asynchronous motor according to claim 1, characterized in that: and a first cooling fan (5) is fixedly arranged at the left end of the first left end cover (3) on the rotating shaft (6) through embedding.

3. The cooling and noise reduction structure of the three-phase asynchronous motor according to claim 1, characterized in that: and a filter plate (9) is fixedly arranged on the second cooling fan (10) and is abutted against the lower surface of the shell (1).

4. The cooling and noise reduction structure of the three-phase asynchronous motor according to claim 1, characterized in that: and a metal net (14) is fixedly arranged at the hollow position of the soundproof cotton (13).

5. The cooling and noise reduction structure of the three-phase asynchronous motor according to claim 1, characterized in that: a plurality of strip-shaped insections (17) are uniformly and fixedly arranged on one side of the inner wall layer (15) far away from the soundproof cotton (13).

6. The cooling and noise reduction structure of the three-phase asynchronous motor according to claim 1, characterized in that: and a plurality of T-shaped radiating fins (16) are uniformly and fixedly arranged on the outer surface of the outer wall layer (12).

Technical Field

The invention relates to the technical field of motors, in particular to a cooling and noise reduction structure of a three-phase asynchronous motor.

Background

At present, a three-phase asynchronous motor is a motor which is powered by a 380V three-phase alternating current power supply (with a phase difference of 120 degrees) which is connected at the same time, and because a rotor and a stator rotating magnetic field of the three-phase asynchronous motor rotate in the same direction at different rotating speeds and have slip ratios, the three-phase asynchronous motor is called as a three-phase asynchronous motor. The three-phase asynchronous motor is an induction motor, and after a stator is electrified, part of magnetic flux passes through a short circuit ring and generates induction current in the short circuit ring. The current in the short-circuit ring blocks the change of the magnetic flux, so that the magnetic fluxes generated by the short-circuit ring part and the short-circuit ring part are out of phase, and a rotating magnetic field is formed. After the power is switched on and started, the rotor winding induces electromotive force and current due to relative motion between the rotor winding and the magnetic field, namely, the rotating magnetic field and the rotor have relative rotating speed and interact with the magnetic field to generate electromagnetic torque, so that the rotor rotates, and energy conversion is realized.

The motor shell of the existing three-phase asynchronous motor is easy to heat and poor in heat dissipation, so that the service life of the motor shell is prolonged, and certain noise pollution is easily caused to the surrounding environment due to noise generated by the three-phase asynchronous motor during working.

Disclosure of Invention

The invention aims to provide a cooling and noise reduction structure of a three-phase asynchronous motor, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a cooling and noise reducing structure of a three-phase asynchronous motor comprises a shell, wherein a first left end cover is fixedly installed at the left end of the shell through welding and used for protecting internal parts of the three-phase asynchronous motor, a rotating shaft is fixedly installed at the center of the first left end cover and used as a main working part of the three-phase asynchronous motor, a second left end cover is fixedly installed at the tail end of the left side of the shell through threads, the second left end cover has the functions of dust prevention, collision prevention and personal safety protection, a plurality of motor supports are fixedly installed on the lower surface of the shell through welding and used for supporting the three-phase asynchronous motor, a mounting bottom plate is fixedly installed at the other end of each motor support through threads and used for fixing and connecting the three-phase asynchronous motor, a base box body is fixedly installed between the lower surface of the bottom of the shell and the mounting bottom plate, and a second cooling fan is fixedly installed on the lower surface inside the base box body through threads, the second cooling fan provides cold wind for three-phase asynchronous machine, helps three-phase asynchronous machine to cool down, the inside fixed outer wall layer that is equipped with of casing, the lower fixed surface installation on outer wall layer is used for absorbing the noise that three-phase asynchronous machine produced at the during operation for hollow structure by soundproof cotton, soundproof cotton's hollow position department fixed mounting has the metal mesh, and the metal mesh is used for assisting three-phase asynchronous machine to spread away at the heat that produces at the during operation, soundproof cotton's outer fixed surface installs inner wall layer.

Preferably, the left end of the first left end cover is fixedly provided with a first cooling fan through embedding in the rotating shaft, the first cooling fan and the rotating shaft operate synchronously, and cold air is generated to provide a cooling function for the three-phase asynchronous motor.

Preferably, the second cooling fan is fixedly provided with a filter plate close to the lower surface of the shell, and the filter plate can filter cold air blown into the shell by the second cooling fan, so that external impurities are prevented from disturbing the normal operation of the three-phase asynchronous motor.

Preferably, the inner wall layer is kept away from the even fixed mounting in one side of soundproof cotton and is provided with a plurality of bar insections, and the bar insections increase three-phase asynchronous machine's internal surface, more do benefit to the heat dissipation.

Preferably, a plurality of T-shaped radiating fins are uniformly and fixedly arranged on the outer surface of the outer wall layer, the T-shaped radiating fins increase the outer surface area of the three-phase asynchronous motor, and heat dissipation is facilitated.

Preferably, the tail part of the right end of the shell is fixedly provided with a fan cover through threads, and the fan cover has the functions of dust prevention, collision prevention and personal safety protection.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the metal mesh and the soundproof cotton arranged in the shell can improve the soundproof effect of the shell, so that the noise generated by the rotor and the stator from the inside is reduced;

2. according to the invention, the first cooling fan and the second cooling fan can blow the generated cold air into the shell through the air inlet holes on the shell, so that the cooling of the three-phase asynchronous motor is facilitated, and meanwhile, the strip-shaped insections and the T-shaped radiating fins arranged on the inner wall layer and the outer wall layer assist in heat dissipation.

Drawings

FIG. 1 is a schematic view of the overall structure of a cooling and noise reduction structure of a three-phase asynchronous motor according to the present invention;

FIG. 2 is a schematic diagram of a left side structure of a cooling and noise reduction structure of a three-phase asynchronous motor according to the present invention;

FIG. 3 is an enlarged schematic structural diagram A of a cooling and noise reduction structure of a three-phase asynchronous motor according to the present invention;

fig. 4 is a schematic diagram of an enlarged structure B of a cooling and noise reduction structure of a three-phase asynchronous motor according to the present invention.

In the figure: 1. a housing; 2. a fan housing; 3. a first left end cap; 4. a second left end cap; 5. a first cooling fan; 6. a rotating shaft; 7. mounting a bottom plate; 8. a motor bracket; 9. a filter plate; 10. a second cooling fan; 11. a base box body; 12. an outer wall layer; 13. sound insulation cotton; 14. a metal mesh; 15. an inner wall layer; 16. a T-shaped heat sink; 17. and (5) strip-shaped insections.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a cooling and noise reduction structure of a three-phase asynchronous motor comprises a shell 1, wherein a first left end cover 3 is welded at the left end of the shell 1, the first left end cover 3 is used for protecting internal parts of the three-phase asynchronous motor, a fan cover 2 is arranged at the tail part of the right end of the shell 1 through threads, the fan cover 2 has the functions of dust prevention, collision prevention and personal safety protection, a rotating shaft 6 is fixedly arranged at the central position of the first left end cover 3, the rotating shaft 6 is a main working part of the three-phase asynchronous motor, a first cooling fan 5 is arranged at the left end of the first left end cover 3 on the rotating shaft 6 through embedding, the first cooling fan 5 provides a cooling function for the three-phase asynchronous motor, a second left end cover 4 is arranged at the tail end of the left side of the shell 1 through threads, the second left end cover 4 has the functions of dust prevention, collision prevention and personal safety protection, a plurality of motor supports 8 are welded at the lower surface of the shell 1, the motor support 8 is used for supporting a three-phase asynchronous motor, the other end of the motor support 8 is provided with a mounting bottom plate 7 through threads, the mounting bottom plate 7 is used for fixing and connecting the three-phase asynchronous motor, a base box body 11 is arranged between the lower surface of the bottom of the shell 1 and the mounting bottom plate 7, the lower surface inside the base box body 11 is provided with a second cooling fan 10 through threads, the second cooling fan 10 provides cold air for the three-phase asynchronous motor to help the three-phase asynchronous motor to cool, a filter plate 9 is arranged on the upper surface of the second cooling fan 10 and is close to the lower surface of the shell 1, the filter plate 9 can filter the cold air blown into the shell 1 by the second cooling fan 10, an outer wall layer 12 is fixedly arranged inside the shell 1, the lower surface of the outer wall layer 12 is made of soundproof cotton 13, the soundproof cotton 13 is of a hollow structure and is used for absorbing noise generated when the three-phase asynchronous motor works, and a metal mesh 14 is arranged at the hollow position of the soundproof cotton 13, the metal mesh 14 is used for assisting three-phase asynchronous machine and spreads away at the heat that the during operation produced, there is inner wall layer 15 on soundproof cotton 13's surface, one side that soundproof cotton 13 was kept away from to inner wall layer 15 is even has a plurality of bar insections 17, and bar insection 17 has increased three-phase asynchronous machine's internal surface, more does benefit to the heat dissipation, outer wall layer 12 surface is even has a plurality of T type fin 16, and T type fin 16 has increased three-phase asynchronous machine's surface area, more does benefit to the heat dissipation.

The working principle is as follows: when the three-phase asynchronous motor is used, the first cooling fan 5 is driven to rotate by the rotation of the rotating shaft 6, cold air blown out by the first cooling fan 5 enters the shell 1 to help the three-phase asynchronous motor to be cooled, then the cold air blown out from the bottom of the three-phase asynchronous motor by the second cooling fan 10 is subjected to cooling treatment by the filter plate 9, heat generated by the operation of the three-phase asynchronous motor is reduced by the first cooling fan 5 and the second cooling fan 10, then the surface area of the shell 1 is increased by the T-shaped radiating fins 16 and the strip-shaped insections 17 arranged on the outer wall layer 12 and the inner wall layer 15, the heat dissipation of the three-phase asynchronous motor is facilitated, noise generated by the operation of the three-phase asynchronous motor is absorbed by the soundproof cotton 13 and the metal mesh 14 in the shell 1, the soundproof effect of the three-phase asynchronous motor is improved, and the sound emitted from the interior of the three-phase asynchronous motor is reduced, has the advantages of simple structure, convenient use and good use effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.