Permanent magnet synchronous motor easy to assemble

Abstract

The utility model relates to an easy-to-assemble permanent magnet synchronous motor, which comprises a shell, a stator, a rotor, an end cover and an output shaft, the stator is fixedly arranged in the shell, the rotor is rotatably arranged in the shell and is in transmission connection with the output shaft, the end cover is bent to form a plurality of mounting plates, the mounting plates are provided with mounting holes, and the mounting holes are communicated with the stator. A plurality of positioning plates are formed on the edge of the end cover, a plurality of positioning grooves are formed in the upper end of the shell, a plurality of clamping plates are formed at the upper end of the shell, the end cover is arranged at the upper end of the shell so that the positioning plates can be arranged in the positioning grooves, and the clamping plates are bent towards the end cover and abut against the end cover. The permanent magnet synchronous motor easy to assemble is easier to assemble, the assembling efficiency is improved, and the production cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, especially a kind of permanent magnet synchronous motor of easy assembly. BACKGROUND

[0002] Permanent magnet synchronous motor is a kind of commonly used driving device, with simple structure, small size, high efficiency, high power factor and other advantages, when installing permanent magnet synchronous motor and driven piece cooperation, need to be realized by mounting bracket permanent magnet synchronous motor fixed installation, in prior art, when assembling permanent magnet synchronous motor, worker is equipped with mounting bracket on the end cover of permanent magnet synchronous motor by bolt connection or riveting mode, to meet the demand of permanent magnet synchronous motor installation use, this increases the process of permanent magnet synchronous motor when assembling, affect the speed of assembly, and increase the cost of production.

[0003] For the above problems, the utility model makes improvements. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of permanent magnet synchronous motor of easy assembly, solve the above problems existing in the use process of prior art.

[0005] The technical scheme of the utility model is realized as follows:

[0006] A kind of permanent magnet synchronous motor of easy assembly, including shell, stator, rotor, end cover and output shaft, the stator is fixedly arranged in shell, the rotor is rotationally arranged in shell and is drivingly connected with output shaft, the end cover is bent and is formed with several installation plates, the installation plate is equipped with installation hole, the end cover edge is formed with several positioning plates, the shell upper end is equipped with several positioning grooves and the shell upper end is formed with several clamping plates, the end cover is placed on the shell upper end so that positioning plate is placed in positioning groove, the clamping plate is bent and tightly abuts on the end cover towards the end cover.

[0007] Preferably, the stator includes two stacked stator units, the stator unit includes a stator support, a stator coil and a stator core, the stator support is cylindrical and each end of the stator support is formed with a support ring, the stator coil is wound on the stator support, the stator core is composed of a limiting ring and a plurality of triangular core plates, the core plates of the two stator cores are inserted into the stator support from both ends of the stator support and abut against the inner wall of the stator support, and the limiting ring abuts against the support ring.

[0008] Preferably, the support ring is formed with a plurality of limiting protrusions, the limiting ring is provided with a plurality of limiting grooves matched with the limiting protrusions and corresponding to the limiting protrusions, and the limiting protrusions are located in the limiting grooves.

[0009] Preferably, a plurality of limiting columns are formed on the support ring of the upper stator support, and a plurality of limiting holes matched with the limiting columns are formed on the support ring of the lower stator support.

[0010] Preferably, a plurality of connecting terminals are embedded on the upper stator support, and the coil is connected to the connecting terminal.

[0011] Preferably, the rotor comprises a rotor support and a permanent magnet, the permanent magnet is sleeved on the rotor support, a vertical support shaft is arranged in the center of the shell, the rotor support is arranged in the stator through the support shaft, a driving gear is arranged on the upper end of the rotor support, and the driving gear is in transmission connection with the output shaft through a gear assembly.

[0012] Preferably, the gear assembly comprises a gear support, a first transmission gear and a second transmission gear, a plurality of connecting columns are formed on the gear support and arranged in the end cover, the lower end of the output shaft is rotatably arranged on the gear support, the first transmission gear is rotatably arranged on the gear support and engaged with the driving gear penetrating into the gear support, and the second transmission gear is fixedly connected to the output shaft and engaged with the first transmission gear.

[0013] Preferably, an elastic support is arranged below the rotor on the support shaft.

[0014] In summary, the utility model has the advantages that when the end cover is assembled, the end cover is accurately placed on the upper end of the shell through the cooperation of the positioning plate and the positioning groove, then the clamping plate is bent to tightly abut against the end cover, so that the end cover and the shell are fixedly connected, the assembly operation is very convenient, the mounting plate formed by bending on the end cover is used for the fixed installation of the permanent magnet synchronous motor, the operation of assembling and installing the support in the subsequent process is saved, the assembly process is saved, the assembly efficiency is improved, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the drawings without creative labor.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0018] Figure 3 This is an exploded view of the present invention;

[0019] Figure 4 This is a schematic diagram of the shell structure in this utility model;

[0020] Figure 5 This is a schematic diagram of the stator structure in this utility model;

[0021] Figure 6 This is a schematic diagram of the rotor structure in this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the end cap of this utility model;

[0023] Figure 8 This is a schematic diagram of the cable outlet cover in this utility model.

[0024] In the diagram: 1. Housing; 11. Positioning groove; 12. Cable outlet; 13. Support shaft; 14. Snap-fit ​​plate; 2. Stator; 21. Stator bracket; 211. Support ring; 212. Limiting protrusion; 213. Limiting post; 214. Limiting hole; 215. Terminal block; 22. Stator coil; 23. Stator core; 231. Core plate; 232. Limiting ring; 233. Limiting groove; 3. Rotor; 31. Rotor 32. Bracket; 33. Permanent magnet; 4. Drive gear; 5. End cover; 6. Mounting plate; 7. Mounting hole; 8. Positioning plate; 9. Output shaft; 10. Cable outlet cover; 11. First locking part; 12. Second locking part; 13. Limiting notch; 14. Cable outlet hole; 15. Gear assembly; 16. Gear bracket; 17. Connecting column; 18. First transmission gear; 19. Second transmission gear; 20. Elastic support. Detailed Implementation

[0025] The following will refer to the appendix in the embodiments of this utility model. Figures 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] As shown in the figure, an easy-to-assemble permanent magnet synchronous motor includes a shell 1, a stator 2, a rotor 3, an end cover 4 and an output shaft 5, the stator 2 is fixedly arranged in the shell 1, the rotor 3 is rotatably arranged in the shell 1 and is in transmission connection with the output shaft 5, the end cover 4 is formed with a plurality of mounting plates 41 by bending, the mounting plates 41 are provided with mounting holes 42, the end cover 4 is formed with a plurality of positioning plates 43 on the edge, the shell 1 is provided with a plurality of positioning grooves 11 on the upper end and is formed with a plurality of clamping plates 14 on the upper end, the end cover 4 is arranged on the upper end of the shell 1 so that the positioning plates 43 are arranged in the positioning grooves 11, and the clamping plates 14 are bent towards the end cover 4 and tightly abut against the end cover 4.

[0027] In the above structure, when assembling the end cover 4, the end cover 4 is accurately placed on the upper end of the shell 1 through the cooperation of the positioning plates 43 and the positioning grooves 11, and then the clamping plates 14 are bent to tightly abut against the end cover 4, so that the fixed connection of the end cover 4 and the shell 1 is realized, the assembly operation is very convenient, the mounting plates 41 formed by bending on the end cover 4 are used for fixing and mounting the permanent magnet synchronous motor in use, the operation of assembling and mounting a support in sequence is omitted, the assembly process is saved, the assembly efficiency is improved, and the production cost is reduced.

[0028] On the basis of the above structure, in order to facilitate the assembly of the stator 2 and the rotor 3 inside the permanent magnet synchronous motor and facilitate the assembly operation of the whole permanent magnet synchronous motor:

[0029] The structure of the stator: the stator 2 includes two stacked stator units, the stator unit includes a stator support 21, a stator coil 22 and a stator core 23, the stator support 21 is cylindrical and is formed with a support ring 211 at each end, the stator coil 22 is wound on the stator support 21, the stator core 23 is composed of a limiting ring 232 and a plurality of triangular core plates 231, the core plates 231 of the two stator cores 23 are respectively inserted into the stator support 21 from both ends of the stator support 21 and abut against the inner wall of the stator support 21, and the limiting ring 232 abuts against the support ring 211. In the above structure, after the core plates 231 are inserted into the stator support 21 and abut against the inner wall of the stator support 21, the limiting ring 232 abuts against the support ring 211, and the core plates 231 of the two stator cores 23 assembled on the stator support 21 are distributed on the inner wall of the stator support 21 in a staggered manner, so that the stator core 23 and the stator support 21 are assembled to form a stator unit, the operation is very convenient, then the two stator units are sequentially arranged in the shell 1 so that the outer side edges of the support rings 211 of the stator supports 21 abut against the inner wall of the shell 1, and the assembly of the stator 2 is realized, the operation is very convenient.

[0030] In order to enhance the stability of the stator core 23 after being assembled on the stator support 21, a plurality of limiting protrusions 212 are formed on the support ring 211, a plurality of limiting grooves 233 corresponding to the limiting protrusions 212 are formed on the limiting ring 232, the limiting protrusions 212 are located in the limiting grooves 233, the limiting protrusions 212 and the limiting grooves 233 limit the relative rotation of the stator core 23 and the stator support 21, and the stability of the stator core 23 and the stator support 21 after being assembled is enhanced.

[0031] In order to enhance the stability of the two stator units after being stacked, a plurality of limiting columns 213 are formed on the support ring 211 of the upper stator support 21, a plurality of limiting holes 214 corresponding to the limiting columns 213 are formed on the support ring 211 of the lower stator support 21, the limiting columns 213 are inserted into the limiting holes 214, the limiting columns 213 and the limiting holes 214 limit the relative rotation of the upper and lower stator units, and the stability of the two stator units after being stacked is enhanced.

[0032] In order to facilitate the arrangement of the wires of the stator coil 22 during assembly, a plurality of wire terminals 215 are embedded on the upper stator support 21, the coil is connected to the wire terminals 215, a wire outlet 12 is formed on one side of the shell 1, a wire cover plate 6 is arranged on the wire outlet 12, a first clamping portion 61 is formed on the inner side of the wire cover plate 6 and abuts against the inner wall of the shell 1, a second clamping portion 62 is formed on the outer side of the wire cover plate 6 and abuts against the outer wall of the shell 1, a plurality of limiting notches 63 are formed on the first clamping portion 61, the wire terminals 215 are located in the limiting notches 63, and a plurality of wire holes 64 are formed on the wire cover plate 6. In the above structure, when connecting the wires of the stator coil 22, the wires are welded to the wire terminals 215 through the wire holes 64, then the wire cover plate 6 is inserted into the wire outlet 12 from top to bottom, the first clamping portion 61 and the second clamping portion 62 abut against the inner wall and the outer wall of the shell 1 respectively to limit the wire cover plate 6 in the radial direction of the shell 1, and after the end cover 4 is assembled on the shell 1, the end cover 4 abuts against the upper end of the wire cover plate 6 to limit the wire cover plate 6 in the axial direction of the shell 1, so that the wire cover plate 6 is stably arranged on the wire outlet 12, the assembly of the wire cover plate is very convenient, and the arrangement of the wires is facilitated. After the wire cover plate 6 is assembled on the shell 1, the wire terminals 215 are located in the limiting notches 63 to protect the connection between the wires and the wire terminals 215, and the limiting notches 63 limit the rotation of the wire terminals 215 with the stator support 21 to limit the rotation of the stator in the shell 1, thereby ensuring the stability of the stator.

[0033] The rotor 3 comprises a rotor support 31 and a permanent magnet 32, the permanent magnet 32 is sleeved on the rotor support 31, a vertical support shaft 13 is arranged in the center of the shell 1, the rotor support 31 is arranged on the support shaft 13 and located in the stator 2, a driving gear 33 is arranged on the upper end of the rotor support 31, the driving gear 33 is in transmission connection with the output shaft 5 through a gear assembly 7, specifically, the gear assembly 7 comprises a gear support 71, a first transmission gear 72 and a second transmission gear 73, a plurality of connecting columns 711 are formed on the gear support 71 and arranged on the end cover 4, the lower end of the output shaft 5 is rotatably arranged on the gear support 71, the first transmission gear 72 is rotatably arranged on the gear support 71 and engaged with the driving gear 33 penetrating into the gear support 71, the second transmission gear 73 is fixedly connected to the output shaft 5 and engaged with the first transmission gear 72, in the above structure, the driving gear 33, the first transmission gear 72 and the second gear are all double gears, that is, the above gears are all connected by coaxial two gears with big and small sizes, when assembling the rotor, the big end of the driving gear 33 is inserted into the matching installation groove to realize the linkage of the driving gear 33 and the rotor in the rotating direction, then the rotor support 31 is arranged on the support shaft 13 and located in the stator 2 to realize the assembly of the rotor 3, the operation is very convenient, and the gear support 71 is connected to the end cover 4 through the connecting columns 711, when assembling the end cover 4 and placing the end cover 4 on the shell 1, the driving gear 33 penetrates into the gear support 71 and is engaged with the first transmission gear 72, the interface realizes the transmission connection between the rotor and the output shaft 5, and the operation is very convenient.

[0034] In order to ensure the smoothness of the rotor rotating in the stator, the elastic support 8 is arranged on the support shaft 13 and located below the rotor 3, the elastic support 8 provides support for the rotor, the lower end of the rotor 3 does not directly contact with the shell 1, the friction between the rotor 3 and the shell 1 is reduced, the smoothness of the rotor 3 rotating is strengthened, and the efficiency of the permanent magnet synchronous motor is ensured.

[0035] In summary, the assembly of the whole permanent magnet synchronous motor is very convenient, the workers can easily perform the assembly operation, the production cost can be effectively reduced, and the production efficiency can be improved.

[0036] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An easily assembled permanent magnet synchronous motor, comprising a shell (1), a stator (2), a rotor (3), an end cover (4) and an output shaft (5), the stator (2) is fixedly arranged in the shell (1), the rotor (3) is rotatably arranged in the shell (1) and is in transmission connection with the output shaft (5), characterized in that: The end cover (4) is provided with a plurality of mounting plates (41) formed by bending, the mounting plates (41) are provided with mounting holes (42), the end cover (4) is provided with a plurality of positioning plates (43) formed on the edge, the shell (1) is provided with a plurality of positioning grooves (11) on the upper end and a plurality of clamping plates (14) formed on the upper end, the end cover (4) is arranged on the upper end of the shell (1) so that the positioning plates (43) are arranged in the positioning grooves (11), and the clamping plates (14) are bent towards the end cover (4) and tightly abut on the end cover (4).

2. The easy-to-assemble permanent magnet synchronous motor according to claim 1, characterized in that: The stator (2) comprises two stacked stator units, the stator unit comprises a stator support (21), a stator coil (22) and a stator core (23), the stator support (21) is cylindrical, and one support ring (211) is formed at each end of the stator support (21), the stator coil (22) is wound on the stator support (21), the stator core (23) is composed of a limiting ring (232) and a plurality of triangular core plates (231), the core plates (231) of the two stator cores (23) are respectively inserted into the stator support (21) from the two ends of the stator support (21) and abut against the inner wall of the stator support (21), and the limiting ring (232) abuts on the support ring (211).

3. The easy-to-assemble permanent magnet synchronous motor according to claim 2, characterized in that: The support ring (211) is provided with a plurality of limiting protrusions (212), the limiting ring (232) is provided with a plurality of limiting grooves (233) matched with and corresponding to the limiting protrusions (212), and the limiting protrusions (212) are located in the limiting grooves (233).

4. The easy-to-assemble permanent magnet synchronous motor according to claim 3, characterized in that: The support ring (211) of the upper stator support (21) is provided with a plurality of limiting columns (213), the support ring (211) of the lower stator support (21) is provided with a plurality of limiting holes (214) matched with and corresponding to the limiting columns (213), and the limiting columns (213) are inserted into the limiting holes (214).

5. The easy-to-assemble permanent magnet synchronous motor according to claim 4, characterized in that: The upper stator support (21) is embedded with a plurality of terminal blocks (215), the coil is connected to the terminal block (215), the shell (1) is provided with a wire outlet (12) on one side of the terminal block (215), the wire outlet (12) is provided with a wire cover plate (6), the inner side of the wire cover plate (6) is provided with a first clamping portion (61) abutting against the inner wall of the shell (1), the outer side is provided with a second clamping portion (62) abutting against the outer wall of the shell (1), the first clamping portion (61) is provided with a plurality of limiting notches (63), the terminal block (215) is located in the limiting notches (63), and the wire cover plate (6) is provided with a plurality of wire holes (64).

6. The easy-to-assemble permanent magnet synchronous motor according to claim 5, characterized in that: The rotor comprises a rotor support (31) and a permanent magnet (32), the permanent magnet (32) is sleeved on the rotor support (31), the housing (1) is provided with a vertical support shaft (13) in the center, the rotor support (31) is arranged on the support shaft (13) and located in the stator (2), the upper end of the rotor support (31) is provided with a driving gear (33), and the driving gear (33) is in transmission connection with the output shaft (5) through a gear assembly (7).

7. The easy-to-assemble permanent magnet synchronous motor according to claim 6, characterized in that: The gear assembly (7) comprises a gear support (71), a first transmission gear (72) and a second transmission gear (73), a plurality of connecting columns (711) are formed on the gear support (71) and arranged on the end cover (4), the lower end of the output shaft (5) is rotatably arranged on the gear support (71), the first transmission gear (72) is rotatably arranged on the gear support (71) and engaged with the driving gear (33) penetrating into the gear support (71), and the second transmission gear (73) is fixedly connected to the output shaft (5) and engaged with the first transmission gear (72).

8. The easy-to-assemble permanent magnet synchronous motor according to claim 7, characterized in that: The support shaft (13) is provided with an elastic support (8) below the rotor (3).

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