CN213602467U - Novel permanent magnet motor structure - Google Patents
Novel permanent magnet motor structure Download PDFInfo
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- CN213602467U CN213602467U CN202023086535.5U CN202023086535U CN213602467U CN 213602467 U CN213602467 U CN 213602467U CN 202023086535 U CN202023086535 U CN 202023086535U CN 213602467 U CN213602467 U CN 213602467U
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Abstract
The utility model provides a novel permanent magnet motor structure belongs to motor structure technical field. The motor adopts inner rotor surface-mounted permanent magnet structure, the inside permanent magnet bridge that has increased of rotor, stator winding adopts flat rectangle conducting bar, increases auxiliary tank around the stator tank, and its technical essential lies in: the permanent magnet bridge arranged in the rotor can effectively reduce the magnetic leakage between the magnetic poles of the motor, reduce the harmonic component of the air gap flux density, effectively reduce the torque pulsation of the motor and improve the running stability of the motor; the stator winding adopts flat rectangle conducting bar can improve the groove filling rate of motor for the efficiency of motor improves by a wide margin, and the winding heat-sinking capability of flat structure is also stronger, is favorable to the heat dissipation of motor, embeds into oil cooling passageway around the stator slot of motor increase in the auxiliary tank, and oil cooling passageway can restrain the temperature rise of motor, makes the efficiency of motor improve.
Description
Technical Field
The utility model relates to the technical field of motors, specifically a novel permanent-magnet machine structure.
Background
The permanent magnet motor is used as an important basic element in the technology and the system of industrial automation and military weapon modernization, the demand is continuously increased, a rotor of the permanent magnet motor adopts a surface-mounted permanent magnet structure, and a stator of the permanent magnet motor adopts a tooth groove structure. The permanent magnet motor has the advantages of simple structure, high reliability, higher power density and the like, and the permanent magnet motor is greatly developed in industrial application due to the advantages. However, the research on the permanent magnet motor is still limited by some technical problems, when the permanent magnet motor runs, the interaction between the permanent magnet and the armature teeth leads to a large air gap flux density harmonic content of the motor, so that the motor generates a large torque ripple, the application of the motor in a high-precision system is limited by the large torque ripple, the efficiency of the permanent magnet motor still has a large improvement space, in addition, the temperature rise of the permanent magnet motor during running is also fast, the aging and the efficiency reduction of the motor can be accelerated due to poor heat dissipation of the motor, and the development of the permanent magnet motor is limited by the defects.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the problem that solves is: the utility model provides a novel permanent magnet motor structure to it is great to solve current motor torque pulsation, and the motor operation efficiency is lower and the higher problem of temperature.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a novel permanent magnet motor structure, which is characterized in that the motor adopts an inner rotor structure, a permanent magnet is arranged on the outer surface of a rotor, a stator adopts a tooth socket structure, and the rotor and stator structures of the motor are improved; a permanent magnet bridge with an angle of 90 degrees is constructed in the rotor and used for connecting adjacent permanent magnets, and the included angle between each permanent magnet and the corresponding permanent magnet bridge is 30 degrees; the stator winding adopts flat rectangular conducting bars, auxiliary slots are added around the stator slots, and oil cooling channels are placed in the slots.
By adopting the technical scheme, the permanent magnet motor obtains good operation characteristics, the permanent magnet bridge additionally arranged in the rotor can effectively reduce the magnetic leakage between the magnetic poles of the motor, reduce the harmonic component of the air gap flux density, enhance the fundamental component of the motor, improve the air gap harmonic distortion rate of the motor, effectively reduce the torque pulsation of the motor and ensure that the motor can stably operate; the stator winding adopts flat rectangle conducting bar can improve the groove filling rate of motor by a wide margin, and the efficiency of motor obviously improves, and flat structure's winding heat-sinking capability is also stronger, is favorable to the heat dissipation of motor, and the auxiliary tank that increases around the stator slot of motor embeds into oil cooling passageway, can restrain the temperature rise of motor, is favorable to the more efficient stable operation of motor.
Drawings
Fig. 1 is a schematic view of the overall structure of the novel permanent magnet motor of the present invention.
Fig. 2 is a partial enlarged view of the permanent magnet of the novel permanent magnet motor of the present invention.
Shown in the figure: 1. permanent magnet, 2, permanent magnet bridge, 3, flat conducting bar, 4, oil cooling pipeline.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Fig. 1 is a schematic view of an overall structure of a novel permanent magnet motor according to the present invention; fig. 2 is a partial enlarged view of a permanent magnet of the novel permanent magnet motor of the present invention; the motor is characterized in that the motor adopts an inner rotor structure, the permanent magnet is arranged on the outer surface of the rotor, and the stator adopts a tooth groove structure, so that the structure of the rotor and the stator of the motor is improved; a permanent magnet bridge with an angle of 90 degrees is constructed in the rotor and used for connecting adjacent permanent magnets, and the included angle between each permanent magnet and the corresponding permanent magnet bridge is 30 degrees; the stator winding adopts flat rectangular conducting bars, auxiliary slots are added around the stator slots, and oil cooling channels are placed in the slots.
By adopting the technical scheme, the permanent magnet motor obtains good operation characteristics, the permanent magnet bridge additionally arranged in the rotor can effectively reduce the magnetic leakage between the magnetic poles of the motor, reduce the harmonic component of the air gap flux density, enhance the fundamental component of the motor, improve the air gap harmonic distortion rate of the motor, effectively reduce the torque pulsation of the motor and ensure that the motor can stably operate; the stator winding adopts flat rectangle conducting bar can improve the groove filling rate of motor by a wide margin, and the efficiency of motor obviously improves, and flat structure's winding heat-sinking capability is also stronger, is favorable to the heat dissipation of motor, and the auxiliary tank that increases around the stator slot of motor embeds into oil cooling passageway, can restrain the temperature rise of motor, is favorable to the more efficient stable operation of motor.
The above is the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above description, and a plurality of simple deductions or replacements can be made without departing from the concept of the present invention, which should be regarded as the protection scope of the present invention.
Claims (1)
1. A novel permanent magnet motor structure is characterized in that: the motor is composed of a rotor and a stator structure, the motor adopts an inner rotor surface-mounted permanent magnet structure, and the stator adopts a tooth groove structure; a permanent magnet bridge forming an angle of 90 degrees is arranged between the adjacent permanent magnet poles, and the included angle between the permanent magnet bridge and the permanent magnet is 30 degrees; the winding structure placed in the stator slot is a flat rectangular conducting bar; auxiliary grooves are added around the stator grooves, and oil cooling pipelines are arranged in the auxiliary grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023086535.5U CN213602467U (en) | 2020-12-21 | 2020-12-21 | Novel permanent magnet motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023086535.5U CN213602467U (en) | 2020-12-21 | 2020-12-21 | Novel permanent magnet motor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213602467U true CN213602467U (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023086535.5U Expired - Fee Related CN213602467U (en) | 2020-12-21 | 2020-12-21 | Novel permanent magnet motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213602467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112583159A (en) * | 2020-12-21 | 2021-03-30 | 哈尔滨理工大学 | Novel permanent magnet motor structure |
-
2020
- 2020-12-21 CN CN202023086535.5U patent/CN213602467U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112583159A (en) * | 2020-12-21 | 2021-03-30 | 哈尔滨理工大学 | Novel permanent magnet motor structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210702 Termination date: 20211221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |