CN206004506U - A kind of 78 groove fractional-slot permanent-magnet synchronous low voltage motors - Google Patents
A kind of 78 groove fractional-slot permanent-magnet synchronous low voltage motors Download PDFInfo
- Publication number
- CN206004506U CN206004506U CN201620990269.3U CN201620990269U CN206004506U CN 206004506 U CN206004506 U CN 206004506U CN 201620990269 U CN201620990269 U CN 201620990269U CN 206004506 U CN206004506 U CN 206004506U
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- China
- Prior art keywords
- permanent
- low voltage
- magnet synchronous
- synchronous low
- rotor core
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- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
This utility model is related to electro-mechanical arts, more particularly, to a kind of 78 groove fractional-slot permanent-magnet synchronous low voltage motors, it is included stator core and is socketed and the rotor core with rotating shaft synchronous axial system with rotating shaft, described stator core is set in the periphery of rotor core, 78 magnetic pole grooves are evenly equipped with described stator core section, the inside of described rotor core is embedded with 8 permanent-magnet poles, and the way in parallel of described permanent-magnet synchronous low voltage motor is 2, and described permanent-magnet synchronous low voltage motor on line mode is：AAAAZZZBBBXXXCCCCYYYAAAZZZBBBBXXXCCCYYY.The device volume that this utility model provides is little, efficiency high, and pulsation is little, and prevents magnetic flux short circuit.
Description
Technical field
This utility model is related to electro-mechanical arts, more particularly, to a kind of 78 groove fractional-slot permanent-magnet synchronous low voltage motors.
Background technology
The stator of typically traditional small generator or motor is all using integer groove, only high-rating generator or electronic
Machine uses fractional-slot, and the fractional-slot of prior art motor stator is all applied in high-voltage motor, has following reason and advantage：
If 1. adopting integer groove, for keeping the sine of potential waveform, and less cogging torque, then must be using fixed
Sub- skewed slot, a generally oblique tooth pitch or slot pitch t1, but in high-voltage motor, because coil is rectified type winding for molding, in integer groove
In the case of, if stator entirety skewed slot, coil twists an angle it is impossible to contact grooved, its high-tension coil well in groove
Can not be grounded well, and produce galvano-cautery and impact is produced on coil life.
2. high-voltage motor adopt fractional-slot especially simultaneously using odd bin in the case of, can not use skewed slot or few tiltedly
Groove, will be greatly good for the processing performance making above-mentioned, and various sinusoidal wave forms all will be best simultaneously.
3., because the way in parallel of fractional-slot is few, select only 1 road mostly in parallel to most 2 tunnels, using in coil turn
Improper in less motor, and high-voltage motor is to make to reach required electromotive force, the number of turn is more, need not more road in parallel
Number, is adapted to this occupation mode just.Because commonly the asynchronous low voltage motor number of turn is few, less and around root for making it have
Number, only increases more and around way.
Due to above reason, a variety of advantage of fractional-slot than integer groove does not play in low voltage motor application.
Utility model content
Technical problem to be solved in the utility model is to provide small volume, efficiency high, and pulsation is little, and prevents magnetic flux short
One kind 78 groove fractional-slot permanent-magnet synchronous low voltage motor on road.
This utility model is to be achieved by the following technical programs：
A kind of 78 groove fractional-slot permanent-magnet synchronous low voltage motors, it includes stator core and with rotating shaft socket and synchronous with rotating shaft
The rotor core rotating, described stator core is set in the periphery of rotor core, described stator core section is evenly equipped with 78
Magnetic pole groove, the inside of described rotor core is embedded with 8 permanent-magnet poles, and the way in parallel of described permanent-magnet synchronous low voltage motor is 2, institute
Stating permanent-magnet synchronous low voltage motor on line mode is：AAAAZZZBBBXXXCCCCYYYAAAZZZBBBBXXXCCCYYY.
The beneficial effects of the utility model are：
One kind 78 groove fractional-slot permanent-magnet synchronous low voltage motor that this utility model provides, uniform on described stator core section
There are 78 magnetic pole grooves, the inside of described rotor core is embedded with 8 permanent-magnet poles, the way in parallel of described permanent-magnet synchronous low voltage motor
For 2, described permanent-magnet synchronous low voltage motor on line mode is：AAAAZZZBBBXXXCCCCYYYAAAZZZBBBBXXXCCCYYY, adopts
8 permanent-magnet poles of setting-in inside rotor core, can effectively prevent magnetic flux short circuit, provide required magnetic flux by permanent magnet,
There is provided any excitation component without armature winding, apply in permanent-magnet synchronous low voltage motor using fractional-slot, by choose
Slot number and the cooperation of number of poles, are equipped with appropriate short distance bilayer lap winding, and volume only has the 1/2 of same specification asynchronous machine, and efficiency carries
High 3.5 percentage points, and more than 92% high efficiency can be kept under 40% to 80% load factor.Under each operation angle
All can stagger between permanent-magnet synchronous low voltage motor magnetic pole and groove an angle, therefore skewed stator slot can be reduced to minimum, very
To not using skewed slot, and then winding coefficient is made to greatly improve, stock utilization also increases, and manufacturability also strengthens therewith, makes
Motor operation is smoother.
Brief description
Fig. 1 is structural representation of the present utility model；
In figure：1. stator core, 2. rotor core, 3. rotating shaft, 4. Nd-Fe-B permanent magnetic pole, 5. magnetic level groove.
Specific embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings
The utility model is described in further detail with most preferred embodiment.
As illustrated, a kind of 78 groove fractional-slot permanent-magnet synchronous low voltage motors, it is included stator core 1 and is socketed with rotating shaft 3
And the rotor core 2 with rotating shaft synchronous axial system, described stator core is set in the periphery of rotor core, described stator core section
On be evenly equipped with 78 magnetic pole grooves 5, the inside of described rotor core is embedded with 8 permanent-magnet poles 4, described permanent-magnet synchronous low voltage motor
Way in parallel is 2, and described permanent-magnet synchronous low voltage motor on line mode is：
AAAZZZBBBXXXCCCCYYYAAAZZZBBBBXXXCCCYYY.
One kind 78 groove fractional-slot permanent-magnet synchronous low voltage motor being provided due to this utility model, on described stator core section
It is evenly equipped with 78 magnetic pole grooves, the inside of described rotor core is embedded with 8 permanent-magnet poles, the parallel connection of described permanent-magnet synchronous low voltage motor
Way is 2, and described permanent-magnet synchronous low voltage motor on line mode is：
AAAAZZZBBBXXXCCCCYYYAAAZZZBBBBXXXCCCYYY, using being embedded in 8 permanent-magnet poles inside rotor core, permissible
Effectively prevent magnetic flux short circuit, provide required magnetic flux by permanent magnet, provide any excitation component without armature winding, use
Fractional-slot is applied in permanent-magnet synchronous low voltage motor, by the slot number of selection and the cooperation of number of poles, is equipped with appropriate short distance double-deck
Lap winding, volume only has the 1/2 of same specification asynchronous machine, and efficiency improves 3.5 percentage points, and under 40% to 80% load factor
More than 92% high efficiency can be kept.All can stagger between permanent-magnet synchronous low voltage motor magnetic pole and groove under each operation angle
Skewed stator slot therefore can be reduced to minimum by one angle, not even using skewed slot, and then so that winding coefficient is greatly improved,
Stock utilization also increases, and manufacturability also strengthens therewith, makes motor operation smoother.
The above is only preferred implementation of the present utility model it is noted that common skill for the art
For art personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (1)
1. a kind of 78 groove fractional-slot permanent-magnet synchronous low voltage motors, is characterized in that：Including stator core and with rotating shaft socket and with turn
The rotor core of axle synchronous axial system, described stator core is set in the periphery of rotor core, uniform on described stator core section
There are 78 magnetic pole grooves, the inside of described rotor core is embedded with 8 permanent-magnet poles, the way in parallel of described permanent-magnet synchronous low voltage motor
For 2, described permanent-magnet synchronous low voltage motor on line mode is：AAAAZZZBBBXXXCCCCYYYAAAZZZBBBBXXXCCCYYY.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620990269.3U CN206004506U (en) | 2016-08-30 | 2016-08-30 | A kind of 78 groove fractional-slot permanent-magnet synchronous low voltage motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620990269.3U CN206004506U (en) | 2016-08-30 | 2016-08-30 | A kind of 78 groove fractional-slot permanent-magnet synchronous low voltage motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206004506U true CN206004506U (en) | 2017-03-08 |
Family
ID=58194928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620990269.3U Expired - Fee Related CN206004506U (en) | 2016-08-30 | 2016-08-30 | A kind of 78 groove fractional-slot permanent-magnet synchronous low voltage motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206004506U (en) |
-
2016
- 2016-08-30 CN CN201620990269.3U patent/CN206004506U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20180830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |