CN221900642U - Permanent magnet synchronous motor for airtight space - Google Patents

Abstract

The utility model discloses a permanent magnet synchronous motor for a confined space, comprising a stator assembly, a rotor assembly, a motor shaft, a casing and an end cover; the stator assembly is mounted on the casing, the rotor assembly is mounted on the motor shaft, the end cover is fixedly mounted on one end of the casing, the stator assembly, the rotor assembly and the motor shaft are located in a space surrounded by the casing and the end cover, a plurality of first long round holes are provided on the casing body, the first round holes are evenly distributed along the circumferential direction of the casing and are arranged at intervals and staggered along the axial direction of the casing. A plurality of second long round holes are provided on the cylindrical cover body of the end cover, the second round holes are evenly distributed along the circumferential direction of the cylindrical cover body of the end cover and are arranged at intervals and staggered along the axial direction of the cylindrical cover body of the end cover. The utility model can be beneficial to the heat dissipation of the motor in a confined space, can conveniently inspect and maintain the internal parts of the motor, and is light in weight and low in production cost.

Description

A permanent magnet synchronous motor for confined space

Technical Field

The utility model relates to a motor, in particular to a permanent magnet synchronous motor used in a closed space, belonging to the technical field of motors.

Background Art

The existing permanent magnet synchronous motor for a closed space includes a stator assembly, a rotor assembly, a motor shaft, a casing and an end cover; the stator assembly is fixedly mounted on the casing, the rotor assembly is mounted on the motor shaft through a key connection mechanism, the casing is cylindrical, the end cover is barrel-shaped, the end cover is fixedly mounted on one end of the casing by screws, and the stator assembly, the rotor assembly and the motor shaft are located in a space surrounded by the casing and the end cover. However, the permanent magnet synchronous motor of this structure has the following three defects during operation: on the one hand, since the casing is a closed cylindrical body, it is not conducive to the heat dissipation of the motor, so when working in a closed space, it cannot be continuously overloaded; on the other hand, since the casing is a closed cylindrical body, it is inconvenient to inspect and maintain the internal parts of the motor; on the other hand, the motor of this structure is heavy and has high production costs.

Summary of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a permanent magnet synchronous motor for use in a confined space which is beneficial to the heat dissipation of the motor in a confined space, can conveniently inspect and maintain the internal components of the motor, and is light in weight and low in production cost.

In order to solve the above technical problems, the utility model adopts a permanent magnet synchronous motor for a confined space, comprising a stator assembly, a rotor assembly, a motor shaft, a casing and an end cover; the stator assembly is mounted on the casing, the rotor assembly is mounted on the motor shaft, the casing is cylindrical, the end cover is barrel-shaped, the end cover is fixedly mounted on one end of the casing, the stator assembly, the rotor assembly and the motor shaft are located in a space surrounded by the casing and the end cover, and a plurality of first long and round holes are provided on the casing body, the first round holes are evenly distributed along the circumferential direction of the casing and are spaced and staggered along the axial direction of the casing.

As a preferred embodiment of the utility model, a plurality of penetrating elongated second waisted circular holes are opened on the cylindrical cover body of the end cover, and the second waisted circular holes are evenly distributed along the circumferential direction of the cylindrical cover body of the end cover and are spaced and staggered along the axial direction of the cylindrical cover body of the end cover.

As a preferred embodiment of the utility model, a plurality of third long and round holes are provided on the circular bottom plate of the end cover, and the third round holes are radially arranged along the radial direction of the circular bottom plate of the end cover. An axial flow fan is installed on the outer side surface of the circular bottom plate of the end cover, and the axial flow fan is electrically connected to the driver of the permanent magnet synchronous motor.

After adopting the above structure, the utility model has the following beneficial effects:

The utility model sets a plurality of first oblong round holes on the shell of the housing, and the first oblong round holes are evenly distributed along the circumferential direction of the housing and are spaced and staggered along the axial direction of the housing. In other words, the utility model sets large heat dissipation holes on the housing, which is not only conducive to the heat dissipation of the motor, and can make the motor continuously overloaded, but also the heat dissipation holes are peepholes, which can facilitate the inspection and maintenance of the internal parts of the motor, and such a structure also reduces the weight of the motor and reduces the production cost of the motor.

The utility model provides a plurality of through-going long strip second waist circular holes on the cylindrical cover body of the end cover, and the second waist circular holes are evenly distributed along the circumferential direction of the cylindrical cover body of the end cover and are spaced and arranged in an interlaced manner along the axial direction of the cylindrical cover body of the end cover. Such a structure is more conducive to the heat dissipation of the motor in a closed space, further improves the heat dissipation effect and further reduces the weight of the motor.

The utility model sets a plurality of third oblong circular holes penetrating the circular bottom plate of the end cover, and the third oblong circular holes are arranged radially along the radial direction of the circular bottom plate of the end cover, and an axial flow fan is installed on the outer side of the circular bottom plate of the end cover, and the axial flow fan is electrically connected to the driver of the permanent magnet synchronous motor. Such a structure continuously cools down the temperature through the axial flow fan, so that the heat dissipation effect of the motor is better, and the motor works more stably and reliably.

The utility model has a simple structure and is easy to implement.

BRIEF DESCRIPTION OF THE DRAWINGS

The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

FIG1 is a schematic structural diagram of a permanent magnet synchronous motor for a confined space according to the utility model.

FIG. 2 is a schematic structural diagram of a casing in the present invention.

FIG. 3 is a schematic structural diagram of the end cover of the utility model.

Implementation

Referring to Figures 1 to 3, a permanent magnet synchronous motor for a confined space includes a stator assembly, a rotor assembly, a motor shaft, a casing 1 and an end cover 2; the stator assembly is mounted on the casing 1 through a stator bracket, the rotor assembly is mounted on the motor shaft through a key connection mechanism, the casing 1 is cylindrical, the end cover 2 is barrel-shaped, the end cover 2 is fixedly mounted on one end of the casing 1 by screws, the stator assembly, the rotor assembly and the motor shaft are located in a space surrounded by the casing 1 and the end cover 2, and a plurality of first oblong holes 3 are provided on the casing 1, the first oblong holes 3 are evenly distributed along the circumferential direction of the casing 1 and are spaced and staggered along the axial direction of the casing 1.

As a preferred embodiment of the present utility model, as shown in Figures 1 and 2, a plurality of through-going elongated second waisted circular holes 4 are opened on the cylindrical cover body of the end cover 2, and the second waisted circular holes 4 are evenly distributed along the circumferential direction of the cylindrical cover body of the end cover 2 and are spaced and staggered along the axial direction of the cylindrical cover body of the end cover 2.

As a preferred embodiment of the utility model, as shown in FIG3 , a plurality of third oblong holes 5 are provided on the circular bottom plate of the end cover 2, and the third oblong holes 5 are arranged radially along the radial direction of the circular bottom plate of the end cover 2, and an axial flow fan 6 is installed on the outer side of the circular bottom plate of the end cover 2, and the axial flow fan 6 is electrically connected to the driver of the permanent magnet synchronous motor. When the motor is working, the axial flow fan 6 continuously blows air to cool down the inside of the motor through the third oblong holes 5, so that the heat dissipation effect of the motor is better and the motor works more stably and reliably.

After trial use, the utility model has been found to have a simple structure, the motor works stably and reliably in a confined space, the internal parts of the motor are easy to inspect and maintain, the motor is light in weight and has a low production cost, and has achieved good practical effects.

Claims (3)

1. A permanent magnet synchronous motor for a closed space comprises a stator assembly, a rotor assembly, a motor shaft, a shell (1) and an end cover (2); the stator module is installed on casing (1), rotor subassembly installs on the motor shaft, casing (1) is the cylinder, end cover (2) are cask shape, end cover (2) fixed mounting is in casing (1) one end, stator module, rotor subassembly and motor shaft are located the space that is enclosed by casing (1) and end cover (2), its characterized in that: a plurality of penetrating strip-shaped first waist round holes (3) are formed in the shell body of the shell (1), and the first waist round holes (3) are uniformly distributed along the circumferential direction of the shell (1) and are arranged at intervals and staggered with each other along the axial direction of the shell (1).

2. The permanent magnet synchronous motor for a closed space according to claim 1, wherein: the cylindrical cover body of the end cover (2) is provided with a plurality of penetrating strip-shaped second waist round holes (4), and the second waist round holes (4) are uniformly distributed along the circumferential direction of the cylindrical cover body of the end cover (2) and are arranged at intervals and staggered with each other along the axial direction of the cylindrical cover body of the end cover (2).

3. The permanent magnet synchronous motor for a closed space according to claim 1 or 2, characterized in that: a plurality of penetrating strip-shaped third waist round holes (5) are formed in the round bottom plate of the end cover (2), the third waist round holes (5) are radially arranged along the round bottom plate of the end cover (2), an axial flow fan (6) is mounted on the outer side face of the round bottom plate of the end cover (2), and the axial flow fan (6) is electrically connected with a driver of a permanent magnet synchronous motor.