CN208001194U - A kind of rotor structure for permanent magnet motor weakening location torque - Google Patents
A kind of rotor structure for permanent magnet motor weakening location torque Download PDFInfo
- Publication number
- CN208001194U CN208001194U CN201820041762.XU CN201820041762U CN208001194U CN 208001194 U CN208001194 U CN 208001194U CN 201820041762 U CN201820041762 U CN 201820041762U CN 208001194 U CN208001194 U CN 208001194U
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- China
- Prior art keywords
- permanent magnet
- rotor
- groove
- torque
- magnetic barrier
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- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a kind of rotor structure for permanent magnet motor weakening location torque, belongs to electric machine structure technical field.Rotor includes groove, permanent magnet, magnetic barrier, groove is along the circumferential direction evenly distributed in rotor outer surface, permanent magnet is placed in internal rotor in "-" type, magnetic barrier is arranged on the outside of permanent magnet, the groove is that arc-shaped, described permanent magnet uses homogenous segmentations formula structure, magnetic barrier to hinder for asymmetric magnetic, distribution is deflected clockwise along rotor circumference direction, and technical points are:Groove is arc-shaped, location torque caused by slot effect can be weakened, reduce material utilization amount simultaneously, cost is reduced, permanent magnet uses homogenous segmentations formula structure, can reduce cogging torque and improve the weak magnetism speed expansion ability of motor, magnetic barrier is that asymmetric magnetic hinders, distribution is deflected clockwise along rotor circumference direction, can be reduced iron core saturation, can also be increased the torque density of motor while weakening location torque.
Description
Technical field
The utility model is related to technical field of motors, specifically a kind of rotor structure for permanent magnet motor for weakening location torque.
Background technology
Magneto has efficient, simple in structure and reliable for operation feature, and the shape and size of motor are flexible and varied,
It is widely used in aerospace, national defence, industrial and agricultural production and the every field of daily life.But torque pulsation is magneto
An inherent shortcoming, have many occasions need motor have smaller torque pulsation, the torque pulsation caused by slot effect
Also referred to as location torque, location torque are one of the important sources for generating torque pulsation, weaken location torque to promoting Permanent Magnet and Electric
Machine performance is of great significance.
Utility model content
The utility model aim is to provide a kind of rotor structure for permanent magnet motor, to solve existing magneto in operational process
In the big problem of the location torque caused by slot effect, and improve the weak magnetism speed expansion ability of motor, increase torque density.
Technical solution used by the utility model is in order to achieve the above objectives:A kind of magneto weakening location torque
Rotor structure, rotor include groove, permanent magnet, magnetic barrier, and groove is along the circumferential direction evenly distributed in rotor outer surface, permanent magnet
It is placed in internal rotor in "-" type, magnetic barrier is arranged on the outside of permanent magnet.
In above-mentioned technical proposal, the groove is arc-shaped.
In above-mentioned technical proposal, the permanent magnet uses homogenous segmentations formula structure.
In above-mentioned technical proposal, magnetic barrier is that asymmetric magnetic hinders, and distribution is deflected clockwise along rotor circumference direction.
By using above-mentioned technical proposal, magneto obtains good operation characteristic, and groove is arc-shaped, can be weakened
Location torque caused by slot effect, while reducing material utilization amount, cost is reduced, permanent magnet uses homogenous segmentations formula knot
Structure can reduce cogging torque and improve the weak magnetism speed expansion ability of motor, and magnetic barrier is that asymmetric magnetic hinders, along rotor circumference direction
Deflection distribution clockwise can reduce iron core saturation, can also increase the torque density of motor while weakening location torque.
Description of the drawings
Attached drawing 1 is a kind of rotor structure for permanent magnet motor schematic diagram weakening location torque of the utility model;
In figure:1, groove, 2, homogenous segmentations permanent magnet, 3, asymmetric magnetic barrier.
Specific implementation mode
To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below
In conjunction with specific implementation mode, the utility model is expanded on further.
With reference to Figure of description 1, a kind of rotor structure for permanent magnet motor weakening location torque, rotor includes groove, permanent magnetism
Body, magnetic barrier, groove are along the circumferential direction evenly distributed in rotor outer surface, and permanent magnet is placed in internal rotor, magnetic barrier in "-" type
It is arranged on the outside of permanent magnet.
The groove is arc-shaped.
The permanent magnet uses homogenous segmentations formula structure.
The magnetic barrier is that asymmetric magnetic hinders, and distribution is deflected clockwise along rotor circumference direction.
By using above-mentioned technical proposal, magneto obtains good operation characteristic, and groove is arc-shaped, can be weakened
Location torque caused by slot effect, while reducing material utilization amount, cost is reduced, permanent magnet uses homogenous segmentations formula knot
Structure can reduce cogging torque and improve the weak magnetism speed expansion ability of motor, and magnetic barrier is that asymmetric magnetic hinders, along rotor circumference direction
Deflection distribution clockwise can reduce iron core saturation, can also increase the torque density of motor while weakening location torque.
Groove is along the circumferential direction evenly distributed in rotor outer surface, and permanent magnet is placed in internal rotor, magnetic barrier in "-" type
It is arranged on the outside of permanent magnet, groove is arc-shaped, can weaken location torque caused by slot effect, while reducing material use
Amount, reduces cost, and permanent magnet uses homogenous segmentations formula structure, can reduce cogging torque and improve the weak magnetism speed expansion energy of motor
Power, magnetic barrier are that asymmetric magnetic hinders, and distribution is deflected clockwise along rotor circumference direction, can reduce iron core saturation, fixed weakening
The torque density of motor can also be increased while the torque of position.
Present embodiment is only to the exemplary description of this patent does not limit its scope of protection, people in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (1)
1. it is a kind of weaken location torque rotor structure for permanent magnet motor, which is characterized in that rotor include groove, permanent magnet, magnetic barrier,
The groove is arc-shaped, and the permanent magnet is uniformly divided into three sections, is placed in internal rotor in "-" type, magnetic barrier is
Asymmetric magnetic hinders, and is arranged at permanent magnet both ends, distribution is deflected clockwise along rotor circumference direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820041762.XU CN208001194U (en) | 2018-01-11 | 2018-01-11 | A kind of rotor structure for permanent magnet motor weakening location torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820041762.XU CN208001194U (en) | 2018-01-11 | 2018-01-11 | A kind of rotor structure for permanent magnet motor weakening location torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208001194U true CN208001194U (en) | 2018-10-23 |
Family
ID=63836225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820041762.XU Expired - Fee Related CN208001194U (en) | 2018-01-11 | 2018-01-11 | A kind of rotor structure for permanent magnet motor weakening location torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208001194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112838695A (en) * | 2021-03-23 | 2021-05-25 | 哈尔滨理工大学 | Stator and rotor structure of novel surface-mounted permanent magnet motor |
-
2018
- 2018-01-11 CN CN201820041762.XU patent/CN208001194U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112838695A (en) * | 2021-03-23 | 2021-05-25 | 哈尔滨理工大学 | Stator and rotor structure of novel surface-mounted permanent magnet motor |
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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: 20181023 Termination date: 20200111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |