CN219018656U - High-efficiency three-phase alternating-current permanent magnet synchronous motor - Google Patents
High-efficiency three-phase alternating-current permanent magnet synchronous motor Download PDFInfo
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- CN219018656U CN219018656U CN202222976456.4U CN202222976456U CN219018656U CN 219018656 U CN219018656 U CN 219018656U CN 202222976456 U CN202222976456 U CN 202222976456U CN 219018656 U CN219018656 U CN 219018656U
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- Y02T10/64—Electric machine technologies in electromobility
Abstract
The utility model discloses a high-efficiency three-phase alternating current permanent magnet synchronous motor, which comprises a shell and is characterized in that a left end cover and a right end cover are respectively arranged at the left end and the right end of the shell, the high-efficiency three-phase alternating current permanent magnet synchronous motor adopts a pole tooth concentrated winding structure through a stator, copper wires and current copper loss can be saved, the production process can be simplified, the cost is saved, a frequency converter is not needed, the production cost of the high-efficiency three-phase alternating current permanent magnet synchronous motor is reduced, a rotor can be started in a matched mode according to the stator, the starting is quick and stable, the working stability of the high-efficiency three-phase alternating current permanent magnet synchronous motor can be greatly improved, the rotation direction of an output shaft of the high-efficiency three-phase alternating current permanent magnet synchronous motor is very easy to adjust, and the phase sequence of three-phase connection electricity of the motor is only needed to be exchanged, so that the high practicability and popularization value are realized.
Description
Technical Field
The utility model relates to the technical field of three-phase motors, in particular to a high-efficiency three-phase alternating current permanent magnet synchronous motor.
Background
The existing three-phase permanent magnet synchronous motor cannot be started automatically, is mostly started asynchronously or started in a variable frequency mode, and an asynchronous starting winding and a permanent magnet are needed to be arranged on an asynchronous starting rotor, so that the structure is complex, and the production is difficult. The stator is a distributed winding, wasting end copper wire and current copper loss. But also has the defects of slow and unstable starting and the like. The frequency conversion starting requires the use of a frequency converter, which increases the cost of the motor and is disadvantageous in terms of development of the motor. So my proposes a high-efficiency three-phase ac permanent magnet synchronous motor to solve the above-mentioned problems.
Disclosure of Invention
In view of the problems existing in the prior art, the utility model discloses a high-efficiency three-phase alternating current permanent magnet synchronous motor, which adopts the technical scheme that the high-efficiency three-phase alternating current permanent magnet synchronous motor comprises a machine shell, wherein a left end cover and a right end cover are respectively arranged at the left end and the right end of the machine shell, a stator is fixedly arranged on the inner side wall of the machine shell, bearings are fixedly arranged in the middle of the side surface of an inner cavity of the right end cover and the middle of the side wall of the inner cavity of the left end cover, an output shaft is rotatably arranged in the middle of the outer side wall of the right end cover, a rotor is arranged in the middle of the side surface of the inner cavity of the right end cover, and the rotor extends to the inside of the stator.
As a preferable technical scheme of the utility model, the stator comprises stator pole teeth and stator windings, wherein the stator pole teeth are uniformly and fixedly arranged on the side wall of an inner cavity of the shell, the stator windings are wound outside the stator pole teeth, the stator windings are three-phase concentrated windings, the winding directions of each phase of the stator windings are consistent, and the resistance values of each phase of the stator windings are the same.
As a preferable technical scheme of the utility model, each phase of stator winding of the stator winding is manufactured by adopting a group of copper wires to be wound, the head end of each phase of winding is electrically connected with a three-phase alternating current power supply, and the tail end of each phase of winding is electrically connected.
As a preferable technical scheme of the utility model, the stator winding is manufactured by adopting a mode of winding the main winding and the auxiliary winding in parallel, the head ends of each phase of main winding and auxiliary winding are respectively and electrically connected with a three-phase alternating current power supply, the tail end of each phase of main winding is electrically connected, and the tail end of each phase of auxiliary winding is electrically connected with the centrifugal switch.
As a preferable technical scheme of the utility model, the rotor comprises a rotating shaft, a rotor core and permanent magnets, wherein the rotating shaft is rotatably arranged in the middle of the side surface of the inner cavity of the right end cover and is fixedly connected with the output shaft through a bearing, the rotor core is fixedly arranged in the middle of the outer side surface of the rotating shaft and is positioned in the stator pole teeth, the rotor core is not contacted with the side wall of the inner cavity of the stator pole teeth, the permanent magnets are uniformly and fixedly arranged on the outer side wall of the rotor core, the arrangement mode of the permanent magnets is N-S magnetic poles alternately arranged, and the arrangement mode of the permanent magnets can be surface type, built-in type or embedded type.
As a preferable technical scheme of the utility model, the outer side wall of the left end cover is fixedly provided with the radiating fan, the outer part of the left end cover is provided with the fan cover in a matched manner, the middle part of the outer side wall of the fan cover is uniformly provided with through holes, the shell can be radiated by the radiating fan, the radiating fan can be protected by the fan cover, and the air in the fan cover can be interacted with the external air by the through holes.
As a preferable technical scheme of the utility model, the outer side wall of the shell, the outer side wall of the right end cover, the outer side wall of the left end cover and the outer side wall of the fan cover are fixedly provided with mounting screw pipes, the mounting screw pipes are matched and mounted through screws, and the shell, the right end cover, the left end cover and the fan cover can be quickly matched and mounted and dismounted through the mounting screw pipes.
The utility model has the beneficial effects that: the stator adopts a pole tooth concentrated winding structure, copper wires and current copper losses can be saved, the production process can be simplified, the cost is saved, a frequency converter is not needed, the production cost of the high-efficiency three-phase alternating current permanent magnet synchronous motor is reduced, the rotor can be started in a matched mode according to the stator, the starting is quick and stable, the working stability of the high-efficiency three-phase alternating current permanent magnet synchronous motor can be greatly improved, the rotation direction of an output shaft of the high-efficiency three-phase alternating current permanent magnet synchronous motor is easy to adjust, only the connecting end of the stator winding and a three-phase alternating current power supply is needed to be replaced, and the high practicability and popularization value are realized.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a first perspective view of the present utility model;
FIG. 2 is a second perspective view of the present utility model;
FIG. 3 is a right side view of the present utility model;
FIG. 4 is a schematic view of a cross-sectional structure of A-A of the present utility model;
FIG. 5 is a schematic view of a housing structure according to the present utility model;
FIG. 6 is a schematic view of a stator according to embodiment 1 of the present utility model;
fig. 7 is a schematic view of a stator structure according to embodiment 2 of the present utility model;
FIG. 8 is a first perspective view of the rotor and right end cap of the present utility model;
FIG. 9 is a second perspective view of the rotor and right end cap of the present utility model;
FIG. 10 is a first perspective view of the left end cap and the fan of the present utility model;
FIG. 11 is a second perspective view of the left end cap and the fan of the present utility model;
fig. 12 is a schematic view of a fan housing according to the present utility model.
In the figure: 1 casing, 2 right end cover, 3 left end cover, 4 output shaft, 5 installation solenoid, 6 stator, 61 stator pole tooth, 62 stator winding, 7 rotor, 71 pivot, 72 rotor core, 73 permanent magnet, 8 bearing, 9 scattered fan, 10 fan housing, 11 through-holes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1 to 12, the utility model discloses a high-efficiency three-phase alternating current permanent magnet synchronous motor, which adopts the technical scheme that the high-efficiency three-phase alternating current permanent magnet synchronous motor comprises a machine shell 1, a left end cover 3 and a right end cover 2 are respectively arranged at the left end and the right end of the machine shell 1, a stator 6 is fixedly arranged on the inner side wall of the machine shell 1, bearings 8 are fixedly arranged in the middle of the side surface of an inner cavity of the right end cover 2 and the middle of the side wall of the inner cavity of the left end cover 3, an output shaft 4 is rotatably arranged in the middle of the outer side wall of the right end cover 2, a rotor 7 is arranged in the middle of the side surface of the inner cavity of the right end cover 2 and extends to the inside of the stator 6, three-phase alternating current is connected with the stator 6, then the stator 6 generates a rotating magnetic field, the rotor 7 positioned in the interior is driven to rotate in the synchronous magnetic field, and then the output shaft 4 is driven to rotate through the bearings 8.
As a preferred technical scheme of the utility model, the stator 6 comprises stator pole teeth 61 and stator windings 62, the stator pole teeth 61 are uniformly and fixedly arranged on the side wall of the inner cavity of the casing 1, the stator windings 62 are wound outside the stator pole teeth 61, the stator windings 62 are three-phase concentrated windings, the winding directions of each phase of stator windings 62 are consistent, and the resistance values of each phase of stator windings 62 are the same.
As a preferred technical scheme of the present utility model, each phase of stator winding 62 is made by winding a set of copper wires, the head end of each phase winding is electrically connected to a three-phase ac power supply, the tail end of each phase winding is electrically connected, and then the head end of each phase of stator winding 62 is electrically connected to the three-phase ac power supply, when the stator winding 62 is connected to the three-phase ac power supply, the stator winding 62 generates a rotating magnetic field, and then drives the rotor 7 therein to synchronously rotate according to the magnetic field, and further drives the output shaft 4 to rotate, thereby completing the output work of the efficient three-phase ac permanent magnet synchronous motor.
As a preferred technical scheme of the utility model, the rotor 7 comprises a rotating shaft 71, a rotor iron core 72 and a permanent magnet 73, wherein the rotating shaft 71 is rotatably arranged in the middle of the side surface of the inner cavity of the right end cover 2 and is fixedly connected with the output shaft 4 through a bearing 8, the rotor iron core 72 is fixedly arranged in the middle of the outer side surface of the rotating shaft 71 and is positioned in the stator pole teeth 61, the rotor iron core 72 and the side wall of the inner cavity of the stator pole teeth 61 are not contacted with each other, the permanent magnet 73 is uniformly and fixedly arranged on the outer side wall of the rotor iron core 72, the permanent magnets 73 are arranged in an N-S magnetic pole alternative arrangement mode, the permanent magnet 73 can be arranged in a surface type, built-in type or embedded mode, and the permanent magnet 73 can generate magnetic force motion through a magnetic field generated after being electrified by the stator winding 62 so as to drive the rotor iron core 72 and the rotating shaft 71 to rotate, thereby the output work of the efficient three-phase alternating current permanent magnet synchronous motor is completed.
As a preferable technical scheme of the utility model, the outer side wall of the left end cover 3 is fixedly provided with the radiating fan 9, the outer part of the left end cover 3 is matched with the fan cover 10, the middle part of the outer side wall of the fan cover 10 is uniformly provided with the through holes 11, the shell 1 can be radiated by the radiating fan 9, the radiating fan 9 can be protected by the fan cover 10, and the air in the fan cover 10 can be interacted with the external air by the through holes 11, so that the working safety of the high-efficiency three-phase alternating current permanent magnet synchronous motor is improved.
As a preferable technical scheme of the utility model, the outer side wall of the shell 1, the outer side wall of the right end cover 2, the outer side wall of the left end cover 3 and the outer side wall of the fan housing 10 are fixedly provided with the installation screw pipes 5, the installation screw pipes 5 are matched and installed through screws, and the shell 1, the right end cover 2, the left end cover 3 and the fan housing 10 can be quickly matched and installed and detached through the installation screw pipes 5, so that the installation convenience of the high-efficiency three-phase alternating current permanent magnet synchronous motor is improved.
The working principle of the utility model is as follows: through the one end electricity connection of all stator winding 62, then with the other end and the three-phase alternating current power electricity connection of all stator winding 62, when stator winding 62 inserts three-phase alternating current, stator winding 62 produces rotating magnetic field, and the magnetic field that produces after the permanent magnet 73 is circular telegram through stator winding 62 produces magnetic force motion afterwards, and then drives rotor core 72 and pivot 71 and rotate, and then drive output shaft 4 and rotate, from this the output work of accomplishing this high-efficient three-phase alternating current permanent magnet synchronous motor.
Example 2
As shown in fig. 1 to 12, the utility model discloses a high-efficiency three-phase alternating current permanent magnet synchronous motor, which adopts the technical scheme that the high-efficiency three-phase alternating current permanent magnet synchronous motor comprises a machine shell 1, a left end cover 3 and a right end cover 2 are respectively arranged at the left end and the right end of the machine shell 1, a stator 6 is fixedly arranged on the inner side wall of the machine shell 1, bearings 8 are fixedly arranged in the middle of the side surface of an inner cavity of the right end cover 2 and the middle of the side wall of the inner cavity of the left end cover 3, an output shaft 4 is rotatably arranged in the middle of the outer side wall of the right end cover 2, a rotor 7 is arranged in the middle of the side surface of the inner cavity of the right end cover 2 and extends to the inside of the stator 6, three-phase alternating current is connected with the stator 6, then the stator 6 generates a rotating magnetic field, the rotor 7 positioned in the interior is driven to rotate in the synchronous magnetic field, and then the output shaft 4 is driven to rotate through the bearings 8.
As a preferred technical scheme of the utility model, the stator 6 comprises stator pole teeth 61 and stator windings 62, the stator pole teeth 61 are uniformly and fixedly arranged on the side wall of the inner cavity of the casing 1, the stator windings 62 are wound outside the stator pole teeth 61, the stator windings 62 are three-phase concentrated windings, the winding directions of each phase of stator windings 62 are consistent, and the resistance values of each phase of stator windings 62 are the same.
As a preferred technical scheme of the present utility model, the stator winding 62 is made by winding the main winding and the auxiliary winding in parallel, the head ends of each phase of the main winding and the auxiliary winding are respectively electrically connected with the three-phase ac power supply, the tail end of each phase of the main winding is electrically connected with the centrifugal switch, and the starting torque of the motor when the load is applied can be increased by adopting two groups of copper wires for parallel winding, so that the synchronous speed of the motor is accelerated. The main winding of each phase stator and the head end of the auxiliary winding 62 are electrically connected with a three-phase alternating current power supply, then the tail end of the main winding 62 is electrically connected with a centrifugal switch, when the stator winding 62 is connected with three-phase alternating current, the stator winding 62 generates a rotating magnetic field, then the rotor 7 in the stator winding is driven to synchronously rotate according to the rotating magnetic field, and the output shaft 4 is driven to rotate, so that the output work of the efficient three-phase alternating current permanent magnet synchronous motor is completed, the rotating speed of the rotor 7 reaches a stable state, namely, the rotating speed of the rotor 7 and the rotating magnetic field of the stator 6 reach a synchronous state, and then the auxiliary winding in the stator winding 62 can be disconnected by closing the centrifugal switch, and only the main winding is left for working.
As a preferred technical scheme of the utility model, the rotor 7 comprises a rotating shaft 71, a rotor iron core 72 and a permanent magnet 73, wherein the rotating shaft 71 is rotatably arranged in the middle of the side surface of the inner cavity of the right end cover 2 and is fixedly connected with the output shaft 4 through a bearing 8, the rotor iron core 72 is fixedly arranged in the middle of the outer side surface of the rotating shaft 71 and is positioned in the stator pole teeth 61, the rotor iron core 72 and the side wall of the inner cavity of the stator pole teeth 61 are not contacted with each other, the permanent magnet 73 is uniformly and fixedly arranged on the outer side wall of the rotor iron core 72, the permanent magnets 73 are arranged in an N-S magnetic pole alternative arrangement mode, the permanent magnet 73 can be arranged in a surface type, built-in type or embedded mode, and the permanent magnet 73 can generate magnetic force motion through a magnetic field generated after being electrified by the stator winding 62 so as to drive the rotor iron core 72 and the rotating shaft 71 to rotate, thereby the output work of the efficient three-phase alternating current permanent magnet synchronous motor is completed.
As a preferable technical scheme of the utility model, the outer side wall of the left end cover 3 is fixedly provided with the radiating fan 9, the outer part of the left end cover 3 is matched with the fan cover 10, the middle part of the outer side wall of the fan cover 10 is uniformly provided with the through holes 11, the shell 1 can be radiated by the radiating fan 9, the radiating fan 9 can be protected by the fan cover 10, and the air in the fan cover 10 can be interacted with the external air by the through holes 11, so that the working safety of the high-efficiency three-phase alternating current permanent magnet synchronous motor is improved.
As a preferable technical scheme of the utility model, the outer side wall of the shell 1, the outer side wall of the right end cover 2, the outer side wall of the left end cover 3 and the outer side wall of the fan housing 10 are fixedly provided with the installation screw pipes 5, the installation screw pipes 5 are matched and installed through screws, and the shell 1, the right end cover 2, the left end cover 3 and the fan housing 10 can be quickly matched and installed and detached through the installation screw pipes 5, so that the installation convenience of the high-efficiency three-phase alternating current permanent magnet synchronous motor is improved.
The working principle of the utility model is as follows: the main winding and the auxiliary winding 62 of each phase stator are electrically connected with a three-phase alternating current power supply together, then the tail end of the main winding 62 of each phase stator is electrically connected, and the tail end of the auxiliary winding is electrically connected with a centrifugal switch. When each phase of stator winding 62 is connected with three-phase alternating current, each phase of stator winding 62 generates a rotating magnetic field, then a permanent magnet 73 generates magnetic force motion through the magnetic field generated by energizing each phase of stator winding 62, and then drives a rotor core 72 and a rotating shaft 71 to rotate, and further drives an output shaft 4 to rotate, so that the output work of the efficient three-phase alternating current permanent magnet synchronous motor is completed, when the rotating speed of a rotor 7 reaches a stable state, namely, the rotating speed of the rotor 7 is synchronous with the rotating magnetic field of a stator 6, then a centrifugal switch is closed, the auxiliary winding in each phase of stator winding 62 can be disconnected, and only the main winding of each phase of stator is left to work, so that electric energy can be saved.
The components not described in detail herein are prior art.
Although the specific embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes and modifications without inventive labor may be made within the scope of the present utility model without departing from the spirit of the present utility model, which is within the scope of the present utility model.
Claims (7)
1. The utility model provides a high-efficient three-phase alternating current permanent magnet synchronous motor, includes casing (1), its characterized in that, left end cover (3) and right-hand member cover (2) are installed respectively to the left and right ends of casing (1), the inside wall fixed mounting of casing (1) has stator (6), the equal fixed mounting in inner chamber side middle part of right-hand member cover (2) and the inner chamber lateral wall middle part of left end cover (3) has bearing (8), output shaft (4) are installed in the lateral wall middle part rotation of right-hand member cover (2), the inner chamber side middle part of right-hand member cover (2) install rotor (7) just rotor (7) extend to the inside of stator (6).
2. A high efficiency three phase ac permanent magnet synchronous motor according to claim 1, wherein: the stator (6) comprises stator pole teeth (61) and stator windings (62), the stator pole teeth (61) are uniformly and fixedly arranged on the side wall of an inner cavity of the machine shell (1), the stator windings (62) are wound outside the stator pole teeth (61), and the stator windings (62) are three-phase concentrated windings.
3. A high efficiency three phase ac permanent magnet synchronous motor according to claim 1, wherein: each phase of stator winding (62) is made by winding a group of copper wires, the head end of each phase winding is electrically connected with a three-phase alternating current power supply, and the tail end of each phase winding is electrically connected.
4. A high efficiency three phase ac permanent magnet synchronous motor according to claim 1, wherein: the stator winding (62) is made by winding a main winding and an auxiliary winding in parallel, the head ends of each phase of main winding and auxiliary winding are electrically connected with a three-phase alternating current power supply together, the tail end of each phase of main winding is electrically connected, and the tail end of each phase of auxiliary winding is electrically connected with a centrifugal switch.
5. A high efficiency three phase ac permanent magnet synchronous motor according to claim 1, wherein: the rotor (7) comprises a rotating shaft (71), a rotor core (72) and a permanent magnet (73), wherein the rotating shaft (71) is rotatably installed at the middle part of the side surface of the inner cavity of the right end cover (2) and is fixedly connected with the output shaft (4) through a bearing (8), the rotor core (72) is fixedly installed at the middle part of the outer side surface of the rotating shaft (71) and is positioned in the stator pole teeth (61), and the permanent magnet (73) is uniformly and fixedly installed on the outer side wall of the rotor core (72).
6. A high efficiency three phase ac permanent magnet synchronous motor according to claim 1, wherein: the outer side wall of the left end cover (3) is fixedly provided with a scattered fan (9), the outer part of the left end cover (3) is matched with a fan cover (10), and the middle part of the outer side wall of the fan cover (10) is uniformly provided with through holes (11).
7. A high efficiency three phase ac permanent magnet synchronous motor according to claim 1, wherein: the outer side wall of the shell (1), the outer side wall of the right end cover (2), the outer side wall of the left end cover (3) and the outer side wall of the fan cover (10) are fixedly provided with mounting coils (5) and the mounting coils (5) are mounted in a matched mode through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222976456.4U CN219018656U (en) | 2022-11-09 | 2022-11-09 | High-efficiency three-phase alternating-current permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222976456.4U CN219018656U (en) | 2022-11-09 | 2022-11-09 | High-efficiency three-phase alternating-current permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219018656U true CN219018656U (en) | 2023-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222976456.4U Active CN219018656U (en) | 2022-11-09 | 2022-11-09 | High-efficiency three-phase alternating-current permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219018656U (en) |
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2022
- 2022-11-09 CN CN202222976456.4U patent/CN219018656U/en active Active
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