CN207368761U - A kind of compact integrated rare earth permanent magnet intelligent frequency-conversion motor - Google Patents
A kind of compact integrated rare earth permanent magnet intelligent frequency-conversion motor Download PDFInfo
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- CN207368761U CN207368761U CN201721340382.8U CN201721340382U CN207368761U CN 207368761 U CN207368761 U CN 207368761U CN 201721340382 U CN201721340382 U CN 201721340382U CN 207368761 U CN207368761 U CN 207368761U
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- motor
- end cap
- frequency converter
- stator
- frequency
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Abstract
The utility model provides a kind of compact integrated rare earth permanent magnet intelligent frequency-conversion motor, including rotor, stator, bearing, end cap, frequency converter, cooling blower, its motor stator is designed as square, frequency converter is installed on motor stator, motor-shaft extending end end cap, non-shaft stretching end end cap surrounding stretching motor stator end face are one wide, sealed between two end cap by frequency converter protective cover, sealed electric-motor stator surrounding and the distance of frequency converter protective cover are H, cavity is formed, H is related to motor model and meets model shell sizes standard requirement；Motor down-lead is connected by end cap with frequency converter, and power frequency supply is powered after frequency converter rectification directly to motor.The motor stator has first group of axial ventilation passage, and the correspondence position of motor-shaft extending end end cap and non-shaft stretching end end cap has first group of ventilation hole, and motor-shaft extending end end cap and non-shaft stretching end end cap, which correspond to frequency converter installation cavity, second group of ventilation hole.The utility model can increase considerably the power density of motor, reduce motor center height, reduce motor volume.
Description
Technical field
A kind of compact integrated rare earth permanent magnet intelligent frequency-conversion motor is the utility model is related to, especially suitable for various energy saving
The rare earth permanent-magnet synchronization motor of transformation project.
Background technology
National Energy Board's accreditation that domestic petroleum production field uses is suitable for oil field beam pumping unit energy-saving application
Product super high revolution difference asynchronous machine actual operating efficiency is only 75% or so, and all-in-one machine currently on the market is exactly on the top of motor
A stent is welded again by frequency converter on stent in portion so that motor is completely uncoordinated with frequency converter appearance, and needs to increase
Extra installation space so that some operating modes can not use.Due to taking stent to cause body vibration big, frequency converter matter have impact on
Amount.Integrated rare earth permanent magnet intelligent frequency-conversion motor product can not only realize super slip control, but also can reach electric efficiency
More than 90%, realize more efficient energy saving purpose, intelligent characteristic realizes that digital management provides technical guarantee for oil field, should
Product has the extensive market demand.
The content of the invention
The purpose of this utility model is to provide a kind of compact integrated rare earth that can meet various reducing energy consumption projects
Permanent magnet intelligent variable-frequency motor, design of electrical motor are rare earth permanent-magnet synchronization motor, and efficiency can reach more than 90%, and power factor is more than
0.9, since the efficiency and power factor of rare earth permanent-magnet synchronization motor are almost unrelated with the load factor of motor, the section of motor
Energy effect clearly, improves electric motor starting torque multiple, strengthens the overload capacity of motor, solve oil pumping system low load with strong power
The problem of.
The technical solution of the utility model：The compact integrated rare earth permanent magnet intelligent frequency-conversion motor of the utility model includes
Rotor, stator, bearing, end cap, frequency converter, cooling blower, its motor stator are designed as square, and frequency converter is installed on motor stator
On, motor-shaft extending end end cap, non-shaft stretching end end cap surrounding stretching motor stator end face are one wide, are prevented between two end cap by frequency converter
Shield seals, and sealed electric-motor stator surrounding and the distance of frequency converter protective cover are H, forms cavity, and H is related to motor model and full
Foot model shell sizes standard requirement；Motor down-lead is connected by end cap with frequency converter, and power frequency supply is after frequency converter rectification
Power directly to motor.
The motor stator has the correspondence of first group of axial ventilation passage, motor-shaft extending end end cap and non-shaft stretching end end cap
There is first group of ventilation hole in position, and motor-shaft extending end end cap and non-shaft stretching end end cap, which correspond to frequency converter installation cavity, second group of ventilation
Hole.
The advantages of the utility model：In configuration aspects, design of electrical motor is square, and stator is without using engine base, directly by stator
Punching forms, and not only effectively increases the actual effective area of stator punching, and the heat that machine winding produces can be direct
It is delivered to by stator punching in air, radiating efficiency is very high, can increase considerably the power density of motor, reduces motor
Center is high, reduces motor volume.Reduced since motor center is high, volume reduction, save the space got off and can be used for frequency converter
Installation so that motor and frequency converter form an entirety.The cooling of frequency converter is also completed by the wind turbine of motor, has been saved a set of
Cooling system, while power after frequency converter rectification directly to motor, power supply distance has been greatly shortened, has reduced because harmonic band comes
Adverse effect.Intelligent frequency-conversion control technology is taken, product reached energy saving, increased production, the effect of stepless speed regulation.
The utility model electric efficiency improves 10-15% compared with conventional motors so that user can not increase extras
On the premise of old motor is directly replaced with integrated electric motor.Motor is assembled into an entirety with frequency converter, it is possible to achieve motor
, can be to avoid because becoming so that the special connecting cable between frequency converter and motor be greatly shortened with the perfect adaptation of control
Amplify in the waveform of frequency device output containing substantial amounts of harmonic wave by long distance delivery, cause output current of frequency converter to increase, cause
Machine winding is generated heat, and causes vibration and noise, accelerates insulation ag(e)ing to damage motor.Intelligent frequency-conversion control is taken, improves system
The efficiency of system, the energy saving purpose of Danone.
Brief description of the drawings
Fig. 1 is the utility model longitudinal direction schematic cross-sectional view.
Fig. 2 is the utility model transverse direction schematic cross-sectional view.
Fig. 3 is the utility model stator transverse direction schematic cross-sectional view.
Fig. 4 is frequency converter scheme of installation.
Embodiment
As shown in Figure 1 and Figure 2, the compact integrated rare earth permanent magnet intelligent frequency-conversion motor of the utility model, including rotor 1,
Oil sealing 2, stator 8, axle stretch end bearing 3, axle stretch end internal bearing cover 4, non-shaft stretching end bearing 11, non-shaft stretching end internal bearing cover 10, axis
Stretch end end cap 5, non-shaft stretching end end cap 9, frequency converter 7, cooling blower 12, frequency converter protective cover 13, frequency converter protective cover 6, conducting wire
14。
Motor stator 8 be designed as it is square, frequency converter be installed on motor stator 8 on, motor-shaft extending end end cap 5, non-shaft stretching end
9 surrounding of end cap stretching motor stator end face is one wide, is sealed between two end cap by frequency converter protective cover 13, sealed electric-motor stator 8
Surrounding and the distance of frequency converter protective cover 13 are H, form cavity 14, H is related to motor model and meets the model shell sizes
Standard requirement；Motor down-lead is connected by end cap with frequency converter 7, and power frequency supply is powered after frequency converter rectification directly to motor.
Preferably, the motor stator 8 has first group of axial ventilation passage 8a, and motor-shaft extending end end cap 5 and non-axis are stretched
The correspondence position of end end cap 9 has first group of ventilation hole 5a and 9a, and motor-shaft extending end end cap 5 and non-shaft stretching end end cap 9 correspond to frequency conversion
Device installation cavity has second group of ventilation hole 5b and 9b.
Such as Fig. 3：The utility model motor stator 8 is designed as square, and 8b is stator coil, and 8c is stator core, and 8a is electricity
8 first groups of axial ventilation passages of machine stator.The utility model eliminates Special machine base, is directly made of punching, not only reduces
The volume of motor, and effective usable floor area of punching is increased, the heat-sinking capability of motor is strengthened, obtains power of motor density
To improve, motor volume becomes smaller.
As shown in Figure 1, Figure 2, Fig. 4：The end cap at the utility model expanded motor both ends, is meeting the outline overall and installing dimensions of motor
On the premise of so that a toroidal cavity 14 is formd between motor housing and stator, which can be used for installing frequency converter
7, frequency converter 7 can be designed to unit module, and an entirety is perfectly combined into motor body.Power supply after frequency converter rectification
Power directly to motor, significantly reduce the connecting cable between frequency converter and motor, avoid contained by the power supply after rectification
The adverse effect that is produced to motor performance of harmonic wave.Cooling system 12 is mounted in motor tail end, and cooling system can be with motor shaft
Rotating fan or independently-powered wind turbine together, the cooling wind of cooling system 12 form two sets of wind paths, its apoplexy
Road A enters the ventilation hole of stator 8 by non-shaft stretching end end cap 9, is flowed out from axle stretch end end cap 5, which can be efficiently to electricity
Machine is cooled down；Wind path B enters the cavity between frequency converter protective cover 13 and stator 8 by non-shaft stretching end end cap 9, from axle stretch end
End cap 5 flows out, and frequency converter 7 fills in the cavities, and frequency converter 7 can be cooled down, and eliminates the special cooling wind of frequency converter 7
Fan.Wind path B not only cools down frequency converter 7, while also the surface of motor stator 8 is cooled down, and reduce further
The temperature rise of motor.
Frequency converter can be carried out modularized design by its function, and frequency converter module bag is installed as needed with installation supporting rack
In stator surrounding and it is bolted, installation supporting rack designs for hollow out, and the heat that stator winding produces will not be transmitted directly
To frequency converter bag, the heat dissipation of frequency converter is met, and frequency converter module bag and stator are fixed, securely and reliably.
Since motor does not have dedicated engine base, the length of motor can freely be adjusted with the power of motor so that motor sheet
Closely, excellent structure causes motor to form a perfect entirety with frequency converter to the structure of body, does not increase volume not only
Outer installation space, and optimize the control performance of system.
Claims (2)
1. a kind of compact integrated rare earth permanent magnet intelligent frequency-conversion motor, including it is rotor, stator, bearing, end cap, frequency converter, cold
But wind turbine, it is characterised in that：Motor stator (8) be designed as it is square, frequency converter be installed on motor stator (8) on, motor-shaft extending end
End cap (5), non-shaft stretching end end cap (9) surrounding stretching motor stator end face are one wide, by frequency converter protective cover between two end cap
(13) seal, sealed electric-motor stator (8) surrounding and the distance of frequency converter protective cover (13) are H, form cavity (14), H and motor
Model is related and meets model shell sizes standard requirement；Motor down-lead is connected by end cap with frequency converter (7), power frequency supply
Power after frequency converter rectification directly to motor.
2. compact integrated rare earth permanent magnet intelligent frequency-conversion motor according to claim 1, it is characterised in that：The electricity
Machine stator (8) has the correspondence position of first group of axial ventilation passage (8a), motor-shaft extending end end cap (5) and non-shaft stretching end end cap (9)
First group of ventilation hole (5a and 9a) is equipped with, motor-shaft extending end end cap (5) and the corresponding frequency converter installation cavity of non-shaft stretching end end cap (9) have
Second group of ventilation hole (5b and 9b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721340382.8U CN207368761U (en) | 2017-10-18 | 2017-10-18 | A kind of compact integrated rare earth permanent magnet intelligent frequency-conversion motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721340382.8U CN207368761U (en) | 2017-10-18 | 2017-10-18 | A kind of compact integrated rare earth permanent magnet intelligent frequency-conversion motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207368761U true CN207368761U (en) | 2018-05-15 |
Family
ID=62419578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721340382.8U Active CN207368761U (en) | 2017-10-18 | 2017-10-18 | A kind of compact integrated rare earth permanent magnet intelligent frequency-conversion motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207368761U (en) |
-
2017
- 2017-10-18 CN CN201721340382.8U patent/CN207368761U/en active Active
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