CN207638429U - A kind of permanent-magnet synchronous motor rotor core construction - Google Patents
A kind of permanent-magnet synchronous motor rotor core construction Download PDFInfo
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- CN207638429U CN207638429U CN201721823930.2U CN201721823930U CN207638429U CN 207638429 U CN207638429 U CN 207638429U CN 201721823930 U CN201721823930 U CN 201721823930U CN 207638429 U CN207638429 U CN 207638429U
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- synchronous motor
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- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model is related to a kind of permanent-magnet synchronous motor rotor core constructions, including ontology, it is characterized in that, ontology periphery is circumferentially arranged with starting cage, starting cage is convex slot structure, portion is equipped with permanent magnet trough in the body, permanent magnet trough is located at the inside for starting cage, the radius of ontology maximum is r1, radius at ontology minimum is r2, the angle of ontology any position and x-axis is θ, then radius r=r2+ (r1 r2) * sin (θ * p) of ontology any position, and 2*p is the motor pole number of ontology.The utility model provides a kind of air-gap reluctance and achievees the purpose that improve motor gas-gap flux density sine by improving the sine of air gap closer to sinusoidal rotor core structure.
Description
Technical field
The utility model is related to a kind of permanent-magnet synchronous motor rotor core constructions.
Background technology
Permasyn morot is a kind of high-grade drives equipment, has the spy small, efficient, power factor is high
Point is widely used in the industries such as weaving, oil, transport.
General permasyn morot first rushes silicon steel sheet punching at circular rotor in rotor core manufacturing process
Piece, then laminates into rotor core, and next lathe rotor core outer surface, forms the air gap of motor.It is this to pass through
The mode that lathe grinding forms air gap is easy to operate, but the air gap processed is even air gap, and motor sets for sine wave magnetic field
It is standby, improve motor flux density sine advantageously reduce motor stray loss, improve electric efficiency, reduce motor vibration and
Noise.
In order to improve the sine of air gap flux density, each magnetic pole surfaces of rotor are designed to non-completely circular structure, in this respect
Many scholars have done a variety of An attempt of design：At patent of invention " a kind of permanent magnet brushless electromotor with sinusoidal pattern air gap flux density "
(the patent No.：And a kind of patent of invention " embedded sinusoidal pattern face permanent magnet machine rotor " (patent No. 2010105990705)：
CN102857000A the design scheme of off-centre operation is used in)；In a kind of utility model " sine wave current self-starting three-phase rare earth
The permasyn morot " (patent No.：CN201478968U in), segment design has been carried out to rotor surface；In patent of invention " electricity
Machine and compressor with the motor " (patent No.：CN103516165A in), stairstepping rotor core surface design side is used
Formula.
Invention content
The purpose of this utility model is to provide a kind of closer sinusoidal rotor core structure of air-gap reluctance.
In order to achieve the above object, there is provided a kind of permanent-magnet synchronous motor rotor iron for the technical solution of the utility model
Core structure, including ontology, which is characterized in that ontology periphery is circumferentially arranged with cage is started, and starting cage is convex slot structure, in ontology
Middle part is equipped with permanent magnet trough, and permanent magnet trough is located at the inside for starting cage, and the radius of ontology maximum is r1, and half at ontology minimum
Diameter is r2, and the angle of ontology any position and x-axis is θ, then radius r=r2+ (r1-r2) * sin (the θ * of ontology any position
P), 2*p is the motor pole number of ontology.
The utility model provides a kind of closer sinusoidal rotor core structure of air-gap reluctance, by improving air gap just
String achievees the purpose that improve motor gas-gap flux density sine.
Description of the drawings
Fig. 1 is even air gap self-starting permanent magnet synchronous motor rotor core structure；
Fig. 2 is sinusoidal air gap self-starting permanent magnet synchronous motor rotor core structure.
Specific implementation mode
To make the utility model be clearer and more comprehensible, hereby with preferred embodiment, and attached drawing is coordinated to be described in detail below.
Steps are as follows for a kind of realization of permanent-magnet synchronous motor rotor core construction provided by the utility model：
Step 1, selection inline mode mounting magnetic steel start cage 1 and are in rotor outer surface area if rotor, which has, starts cage 1
Domain, using convex slot structure, permanent magnet trough 2 is then located at the lower section for starting cage；
Step 2 enables motor pole number for 2*p, and using a pole span as a cycle, rotor core is separated into 2*p symmetrically
Unit；
Step 3 sets the radius of outer circle maximum as r1, and the radius at minimum is r2, and θ is the angle of any position and x-axis,
Then the radius of any position is r=r2+ (r1-r2) * sin (θ * p) on rotor；
Step 4, according to the track of angle and radius, milling cutter is carried out to the cylindrical rotor core that cast aluminium finishes and is added
Work.
It selects for H160-6 specification self-starting permanent magnet synchronous motor rotor cores below, it is new to this practicality in conjunction with attached drawing
Technical solution in type embodiment is clearly and completely described.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without making creative work belongs to the utility model protection
Range.
Step 1, primary election H160-6 specification rotor slot numbers are 48, start cage 1 and are in rotor outer surface region, magnetic slot
2 are located at the inside for starting cage, are concave slot, as shown in Figure 1；
Step 2 due to motor is 6 poles, therefore p=3, circumferentially surface is divided into 6 symmetrical cells to electric machine rotor iron core, such as schemes
The angles θ in 2 are 60 °；
Step 3 takes the maximum radius r1 of punching for 89.2mm, and it is 86.7mm to take punching least radius r2, then rotor
The polar equation of iron core outer surface is r=86.7+2.5*sin (3*60)；
Step 4 carries out milling cutter processing according to polar equation to rotor core surface, and rotor core is made to reach the ruler of needs
Very little parameter.
Claims (1)
1. a kind of permanent-magnet synchronous motor rotor core construction, including ontology, which is characterized in that ontology periphery circumferentially arranged with rise
Dynamic cage (1), it is convex slot structure to start cage (1), and portion is equipped with permanent magnet trough (2) in the body, and permanent magnet trough (2), which is located at, starts cage
(1) inside, the radius of ontology maximum are r1, and the radius at ontology minimum is r2, and the angle of ontology any position and x-axis is
θ, then radius r=r2+ (r1-r2) the * sin (θ * p) of ontology any position, 2*p are the motor pole number of ontology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721823930.2U CN207638429U (en) | 2017-12-22 | 2017-12-22 | A kind of permanent-magnet synchronous motor rotor core construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721823930.2U CN207638429U (en) | 2017-12-22 | 2017-12-22 | A kind of permanent-magnet synchronous motor rotor core construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207638429U true CN207638429U (en) | 2018-07-20 |
Family
ID=62853882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721823930.2U Active CN207638429U (en) | 2017-12-22 | 2017-12-22 | A kind of permanent-magnet synchronous motor rotor core construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207638429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653274A (en) * | 2020-12-25 | 2021-04-13 | 上海电气集团股份有限公司 | Rotor punching sheet and permanent magnet motor rotor |
-
2017
- 2017-12-22 CN CN201721823930.2U patent/CN207638429U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653274A (en) * | 2020-12-25 | 2021-04-13 | 上海电气集团股份有限公司 | Rotor punching sheet and permanent magnet motor rotor |
| CN112653274B (en) * | 2020-12-25 | 2021-09-24 | 上海电气集团股份有限公司 | Rotor punching sheet and permanent magnet motor rotor |
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