Permanent magnet synchronous motor integrated housing

Abstract

The utility model belongs to the field of motor technology, and in particular, relates to an integrated casing of a permanent magnet synchronous motor. It includes an integrally formed motor barrel, a rear cover, and an air plug base. The back of the rear cover is provided with a clamping groove for synchronously processing the inside and outside of the motor barrel. The clamping groove includes a central circular boss, an outer circular boss, and a connecting bridge. A central through hole is provided in the center of the rear cover, and a circle of central circular bosses is provided on the outer edge of the central through hole. A circle of outer circular bosses concentric with the central circular boss is provided on the rear cover, and a plurality of connecting bridges are evenly arranged radially between the central circular boss and the outer circular boss. A heat sink is provided on the outer side of the motor barrel, and a plurality of front cover mounting seats are evenly arranged at the opening of the motor barrel. A front cover mounting hole is provided on the front cover mounting seat, and the front cover mounting seat is arranged between two heat sinks. The front cover mounting seat is integrally formed with the motor barrel. The utility model has high processing efficiency and structural accuracy.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to an integrated casing of a permanent magnet synchronous motor. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Its main function is to generate driving torque as a power source for electrical appliances or various machines.

[0003] Most of the motor barrels and back covers on the market are split-type and need to be processed separately before assembly. The split-type assembly not only has poor sealing effect and is prone to errors, but its processing and assembly process is also relatively cumbersome. In addition, the traditional motor barrel needs to be processed separately on its outer wall and inner wall, and requires multiple clamping. The casing processing has problems such as long mechanical processing time, high labor costs, low production efficiency, and low processing accuracy.

[0004] In order to install the front cover and the rear cover, the traditional casing will set multiple reinforcing ribs on the outer wall of the motor cylinder, and open installation holes inside the reinforcing ribs for installing the front cover and the rear cover. The reinforcing ribs not only consume too much material, but also affect the heat dissipation of the casing. Utility Model Content

[0005] The purpose of the utility model is to solve the deficiencies of the prior art and to provide an integrated casing for a permanent magnet synchronous motor with high processing efficiency and structural accuracy.

[0006] The purpose of this utility model is solved by the following technical solutions:

[0007] A permanent magnet synchronous motor integrated housing, characterized in that it comprises a motor cylinder, a rear cover, and an aviation plug base, wherein the motor cylinder, the rear cover, and the aviation plug base are integrally formed, one end of the motor cylinder is connected to the rear cover, and the other end is open, and the aviation plug base is fixed to the side wall of the motor cylinder;

[0008] The back of the rear cover is provided with a clamping groove for synchronously processing the inside and outside of the motor barrel; the clamping groove includes a central circular boss, an outer circular boss, and a connecting bridge; a central through hole is provided in the center of the rear cover, a circle of central circular bosses is provided on the outer edge of the central through hole, a circle of outer circular bosses concentric with the central circular boss is provided on the rear cover, and a plurality of connecting bridges are evenly provided radially between the central circular boss and the outer circular boss;

[0009] The outer side of the motor cylinder is provided with a heat sink, a plurality of front cover mounting seats are evenly arranged at the opening of the motor cylinder, a front cover mounting seat is provided with a front cover mounting hole, the front cover mounting seat is arranged between two heat sinks, and the front cover mounting seat is integrally formed with the motor cylinder.

[0010] Based on the above structure, the one-piece motor barrel, rear cover, and aviation plug base structure have stronger sealing performance, and the processing process is simple and fast; after the fixture clamps the shell through the clamping groove, the inner and outer walls of the motor barrel can be processed at the same time, avoiding repeated clamping and improving processing efficiency and precision; by only integrally forming a front cover mounting seat between the heat sinks on the front side of the motor barrel for installing the front cover, the obstruction of the motor barrel surface is reduced, saving materials while increasing the heat dissipation area, improving the heat dissipation effect and thus improving the motor performance.

[0011] Preferably, the central axis of the central through hole, the central axis of the central circular boss, the central axis of the outer circular boss and the central axis of the motor barrel all coincide with each other.

[0012] Preferably, the aviation plug base of the utility model is rectangular, and an aviation plug mounting hole connected to the motor cylinder is provided at the center of the aviation plug base, the aviation plug mounting hole is a cylindrical through hole, a sealing ring mounting groove is provided on the outside of the aviation plug mounting hole, and a first mounting hole for mounting the cover body is provided on the outer surface of the aviation plug base. The aviation plug base is integrally formed with the motor cylinder, and a sealing ring mounting groove is provided on the outside of the aviation plug mounting hole, which greatly improves the sealing performance, and the aviation plug mounting hole is a cylindrical through hole, which is easy to process.

[0013] Preferably, the utility model provides a second mounting hole at each of the four corners of the rear cover, and a groove for making way for a gasket is provided at a position closest to the second mounting hole at the connection between the rear cover and the outer side of the motor cylinder.

[0014] Preferably, the inner wall of the motor cylinder of the utility model is provided with a circle of stator installation limit platform near the rear cover, and the inner diameter of the stator installation limit platform is smaller than the inner diameter of the motor cylinder. When installing the stator, the stator can be directly placed against the stator installation limit platform without adding other auxiliary accessories, which improves the installation speed and improves the structural stability.

[0015] Preferably, the motor cylinder, rear cover and aviation plug base of the utility model are made of aluminum.

[0016] Compared with the prior art, the utility model has the following characteristics and beneficial effects:

[0017] The motor barrel, rear cover and aviation plug base are made of aluminum die-casting, which has a stronger structural sealing performance, and the processing process is simple, fast and high-precision.

[0018] After the fixture clamps the housing through the clamping groove, the inner and outer walls of the motor barrel can be processed at the same time, avoiding repeated clamping and improving processing efficiency and accuracy.

[0019] By only forming a front cover mounting seat between the heat sinks on the front side of the motor barrel for installing the front cover, the obstruction of the motor barrel surface is reduced, material is saved, and the heat dissipation area is increased, the heat dissipation effect is improved, and thus the motor performance is improved.

[0020] The aviation plug base is integrally formed with the motor barrel, and a sealing ring mounting groove is provided on the outside of the aviation plug mounting hole, which greatly improves the sealing performance. The aviation plug mounting hole is a cylindrical through hole, which is easy to process.

[0021] The groove formed near the second mounting hole provides space for the installation of the gasket.

[0022] A circle of stator installation limit platforms is provided on the inner wall of the motor barrel near the rear cover. When installing the stator, the stator can be directly placed against the stator installation limit platform without adding other auxiliary accessories, which improves the installation speed and improves the structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 .

[0024] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 .

[0025] In the figure: motor barrel 1, rear cover 2, aviation plug base 3, clamping groove 4, central circular boss 5, outer circular boss 6, connecting bridge 7, central through hole 8, heat sink 9, front cover mounting seat 10, front cover mounting hole 11, stator mounting limit platform 12, aviation plug mounting hole 13, sealing ring mounting groove 14, first mounting hole 15, second mounting hole 16, groove 17. DETAILED DESCRIPTION

[0026] The following will be combined with the attached Figure 1-2 The utility model is described in further detail.

[0027] A permanent magnet synchronous motor integrated housing includes a motor barrel 1, a rear cover 2, and an air plug base 3. The motor barrel 1, the rear cover, and the air plug base 3 are integrally formed of aluminum material. One end of the motor barrel 1 is connected to the rear cover 2, and the other end is open. The air plug base 3 is fixed to the side wall of the motor barrel 1. The integrally formed motor barrel 1, the rear cover 2, and the air plug base 3 have stronger sealing properties and a simple and fast processing process.

[0028] The back of the rear cover 2 is provided with a clamping groove 4 for synchronously processing the inside and outside of the motor barrel; the clamping groove 4 includes a central circular boss 5, an outer circular boss 6, and a connecting bridge 7; a central through hole 8 is provided in the center of the rear cover 2, and a circle of central circular bosses 5 is provided on the outer edge of the central through hole 8. The rear cover 2 is provided with a circle of outer circular bosses 6 concentric with the central circular boss 5, and a plurality of connecting bridges 7 are evenly arranged radially between the central circular boss 5 and the outer circular boss 6; the central axis of the central through hole 8, the central axis of the central circular boss 5, and the central axis of the outer circular boss 6 all coincide with the central axis of the motor barrel 1.

[0029] The outer side of the motor barrel 1 is provided with a heat sink 9, and a plurality of front cover mounting seats 10 are evenly provided at the opening of the motor barrel 1. The front cover mounting seats 10 are provided with front cover mounting holes 11. The front cover mounting seats 10 are arranged between two heat sinks 9, and the front cover mounting seats 10 are integrally formed with the motor barrel 1. By integrally forming the front cover mounting seats 10 between the heat sinks 9 on the front side of the motor barrel 1 for mounting the front cover, the obstruction of the surface of the motor barrel 1 is reduced, the material is saved, and the heat dissipation area is increased, the heat dissipation effect is improved, and thus the motor performance is improved.

[0030] The inner wall of the motor barrel 1 is provided with a circle of stator installation limit platform 12 near the rear cover 2, and the inner diameter of the stator installation limit platform 12 is smaller than the inner diameter of the motor barrel 1. When installing the stator, the stator can be directly placed against the stator installation limit platform 12 without adding other auxiliary accessories, which improves the installation speed and improves the structural stability.

[0031] The plug base 3 is rectangular, and a plug installation hole 13 connected to the motor cylinder 1 is provided in the center of the plug base 3. The plug installation hole 13 is a cylindrical through hole, and a sealing ring installation groove 14 is provided on the outside of the plug installation hole 13. A first installation hole 15 for installing the cover is provided on the outer surface of the plug base 3. The plug base 3 is integrally formed with the motor cylinder 1, and a sealing ring installation groove 14 is provided on the outside of the plug installation hole 13, which greatly improves the sealing performance. The plug installation hole 13 is a cylindrical through hole, which is easy to process.

[0032] A second mounting hole 16 is provided at each of the four corners of the rear cover 2 , and a groove 17 for installing bolts is provided at a position closest to the second mounting hole 16 at the connection between the rear cover 2 and the outer side of the motor barrel 1 .

[0033] During processing, the utility model integrally forms the aluminum motor barrel 1, the rear cover 2, and the aviation plug base 3 through die-casting, and then the clamp clamps the housing through the clamping groove 4, and simultaneously processes the inner wall and the outer wall of the motor barrel 1, thereby avoiding repeated clamping and greatly improving the processing efficiency and precision.

[0034] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A permanent magnet synchronous motor integrated housing, characterized in that: It includes a motor cylinder, a rear cover, and an aviation plug base, wherein the motor cylinder, the rear cover, and the aviation plug base are integrally formed, one end of the motor cylinder is connected to the rear cover, and the other end is open, and the aviation plug base is fixed to the side wall of the motor cylinder; The back of the rear cover is provided with a clamping groove for synchronously processing the inside and outside of the motor barrel; the clamping groove includes a central circular boss, an outer circular boss, and a connecting bridge; a central through hole is provided in the center of the rear cover, a circle of central circular bosses is provided on the outer edge of the central through hole, a circle of outer circular bosses concentric with the central circular boss is provided on the rear cover, and a plurality of connecting bridges are evenly provided radially between the central circular boss and the outer circular boss; The outer side of the motor cylinder is provided with a heat sink, a plurality of front cover mounting seats are evenly arranged at the opening of the motor cylinder, a front cover mounting seat is provided with a front cover mounting hole, the front cover mounting seat is arranged between two heat sinks, and the front cover mounting seat is integrally formed with the motor cylinder.

2. The integrated permanent magnet synchronous motor housing according to claim 1, characterized in that: The central axis of the central through hole, the central axis of the central circular boss, the central axis of the outer circular boss and the central axis of the motor barrel all coincide with each other.

3. The integrated permanent magnet synchronous motor housing according to claim 1, characterized in that: The aviation plug base is rectangular, and an aviation plug mounting hole connected to the motor cylinder is opened at the center of the aviation plug base. The aviation plug mounting hole is a cylindrical through hole, and a sealing ring mounting groove is provided on the outside of the aviation plug mounting hole. A first mounting hole for mounting a cover body is opened on the outer surface of the aviation plug base.

4. The integrated permanent magnet synchronous motor housing according to claim 1, characterized in that: A second mounting hole is respectively provided at the four corners of the rear cover, and a groove for making way for a gasket is provided at the position closest to the second mounting hole at the connection between the rear cover and the outer side of the motor barrel.

5. The integrated permanent magnet synchronous motor housing according to claim 1, characterized in that: A circle of stator installation limit platform is arranged on the inner wall of the motor cylinder near the rear cover, and the inner diameter of the stator installation limit platform is smaller than the inner diameter of the motor cylinder.

6. The integrated permanent magnet synchronous motor housing according to claim 1, characterized in that: The motor barrel, rear cover and aviation plug base are made of aluminum.

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