CN2814786Y - Non-iron core permanent-mgnet motor - Google Patents
Non-iron core permanent-mgnet motor Download PDFInfo
- Publication number
- CN2814786Y CN2814786Y CN 200520091961 CN200520091961U CN2814786Y CN 2814786 Y CN2814786 Y CN 2814786Y CN 200520091961 CN200520091961 CN 200520091961 CN 200520091961 U CN200520091961 U CN 200520091961U CN 2814786 Y CN2814786 Y CN 2814786Y
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- stator
- rotor
- permanent magnet
- shell
- motor
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Abstract
The utility model relates to a non-iron core permanent magnet motor, which belongs to the technical field a motor. The utility model comprises a shell, a base, a rotating shaft, bearings, a rotor and a stator, wherein the shell is arranged on the base and the rotating shaft of the motor is fixed on the middle part of the shell through the bearings which are arranged on the inner walls of both sides of the shell. The rotor and the stator are orderly arranged on the circumference of the rotating shaft along a radial direction, wherein the rotor section comprises permanent magnets and a rotor bracket which is fixed on the rotating shaft of the motor, the permanent magnets are distributed on the circumference of the rotor bracket; the stator section comprises a stator yoke and stator windings, the stator windings are arranged on the circumference of the permanent magnet and a cylindrical coil of the stator is fixed on the stator yoke which is arranged between the stator winding and the shell. The utility model has the advantages of simple structure, high efficiency, high power factor, small vibration, no static friction torque, higher power grade, etc. The stator and the rotor are all without iron cores, the iron loss can be fundamentally eliminated, and consequently, the efficiency of the motor is increased. A magnetic gathering type permanent magnet structure is adopted, the magnetic dense waveform of an air gap is improved and the harmonic influence is reduced.
Description
Technical field
The utility model relates to the motor technology field, particularly a kind of coreless permanent magnet motor.
Background technology
Advantages such as the coreless machine is in light weight with it, loss is little, noise is low, vibration is little are applied to various control occasions widely, but it is poor also to exist air gap flux density sine degree simultaneously, because the problem of processing technology causes problems such as power grade is lower, makes its due advantage not have and can significantly embody.
The utility model content
In order to solve the problem of above-mentioned existence, the purpose of this utility model is to provide a kind of coreless permanent magnet motor, the stator winding of this motor is anodontia slotless configuration, rotor adopts the concentrated magnetic magnet structure, improve the air gap flux density waveform greatly, thereby made motor that very high efficient and power factor arranged.
A kind of coreless permanent magnet motor of the utility model, comprise shell, support, rotating shaft, bearing, rotor, stator, shell places on the support, and machine shaft at the middle part of shell, radially sets gradually rotor, stator by the bearing fixing on the inwall of shell both sides around rotating shaft; Rotor portion comprises permanent magnet, rotor field spider, and rotor field spider is fixed on the machine shaft, is used for support rotor, permanent magnet be distributed in rotor field spider around; Stationary part comprises stator yoke, stator winding, stator winding be arranged on permanent magnet around, the solenoid of stator is fixed on the stator yoke between stator winding and the shell.The magnetic structure of rotor is the concentrated magnetic structure: the every utmost point of rotor has n piece permanent magnet, and the magnetizing direction of permanent magnet differs 180 °/n respectively successively, makes the air gap flux density ripple form Sine distribution; Every permanent magnet blocks number that extremely descends can according to circumstances be selected, and the piece number is many more, the approaching more sine of air gap flux density.Stator yoke portion and rotor yoke are equipped with non-magnet material.Non-magnet material is bakelite or aluminium etc.
The utility model has the advantages that no teeth groove, brushless, simple in structure, efficient is high, power factor is high, vibration is little, do not have static friction torque and higher advantages such as power grade are arranged; And stator, rotor all do not have iron core, have fundamentally eliminated iron loss, thereby have improved efficiency of motor; Adopt the concentrated magnetic magnet structure, improved the air gap flux density waveform, greatly reduced influence of harmonic; Stator adopts anodontia slotless configuration, has solved the electromagnetic noise that is caused by teeth groove, because the ac-dc axis magnetic resistance is identical, has also just eliminated magnetic resistance moment simultaneously, and is reliable.The utility model can adopt existing support, and stator, rotor manufacture craft are simple.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model,
Fig. 2 is the permanent magnet magnetizing direction schematic diagram that the utility model adopts the concentrated magnetic structure of every extremely following 3 permanent magnets,
The air gap flux density waveform that Fig. 3 is is example with every extremely following three permanent magnets, wherein abscissa is a temperature, ordinate is air gap flux density B/T;
1 stator yoke among the figure, 2 stator winding, 3 permanent magnets, 4 shells, 5 rotating shafts, 6 bearings, 7 rotor field spiders, 8 supports, 9 power supplys.
Embodiment
Further narrate content of the present utility model below in conjunction with drawings and Examples:
Mechanical structure of the present utility model as shown in Figure 1, comprise shell 4, support 8, rotating shaft 5, bearing 6, rotor field spider 7, stator yoke 1, stator winding 2, shell 4 places on the support 8, machine shaft 5 is fixed on the middle part of shell 4 by the bearing 6 on the shell 4 both sides inwalls, radially sets gradually rotor, stator around rotating shaft 5; Rotor portion comprises permanent magnet 3, rotor field spider 7, and rotor field spider 7 is fixed on the machine shaft 5, is used for support rotor, permanent magnet 3 be distributed in rotor field spider 7 around; Stationary part comprises stator yoke 1, stator winding 2, stator winding 2 be arranged on permanent magnet 3 around, the solenoid of stator is fixed on the stator yoke 1 between stator winding 2 and the shell 4.The magnetic structure of present embodiment rotor is to adopt every extremely following 3 permanent magnets, and resulting air gap flux density waveform as shown in Figure 3.Wherein 1 is the non-magnet material stator yoke, and its material can be bakelite, aluminium etc., and its effect is the support stator winding and its heat transferred is arrived outside; The 2nd, stator winding sticks on the stator, and is final with the lacquer moulding by casting for improving its stability, produces required rotating magnetic field by it; The 3rd, the permanent magnet of concentrated magnetic structure produces main field by it; The shell of 4 supporting revolving shaft bearings plays the effect of heat radiation simultaneously; The 5th, the rotating shaft of motor is used for power output; The 6th, the bearing of support motor rotating shaft is fixed on the two ends of rotating shaft; The 7th, the rotor field spider of the non-magnet material of supports permanent magnets; The support of 8 support motor bodies; The 9th, power supply.
Operation principle of the present utility model is: as shown in Figure 1, give the stator winding 2 power supplies when driver by the input of power supply 9, produce rotating magnetic field, with the magnetic field interaction of permanent magnet on the rotor 3 with power supply or this motor, output motor power is rotated in the rotating shaft 5 that drives motor.
Claims (3)
1, a kind of coreless permanent magnet motor, comprise shell, support, rotating shaft, bearing, rotor, stator, shell places on the support, it is characterized in that machine shaft passes through bearing fixing on the inwall of shell both sides at the middle part of shell, radially sets gradually rotor, stator around rotating shaft; Rotor portion comprises permanent magnet, rotor field spider, and rotor field spider is fixed on the machine shaft, permanent magnet be distributed in rotor field spider around; Stationary part comprises stator yoke, stator winding, stator winding be arranged on permanent magnet around, the solenoid of stator is fixed on the stator yoke between stator winding and the shell.
2, coreless permanent magnet motor according to claim 1, the magnetic structure that it is characterized in that described rotor is the concentrated magnetic structure: the every utmost point of rotor has n piece permanent magnet, and the magnetizing direction of permanent magnet differs 180 °/n respectively successively.
3, coreless permanent magnet motor according to claim 1 is characterized in that described stator yoke portion and rotor yoke are equipped with non-magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091961 CN2814786Y (en) | 2005-07-27 | 2005-07-27 | Non-iron core permanent-mgnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091961 CN2814786Y (en) | 2005-07-27 | 2005-07-27 | Non-iron core permanent-mgnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814786Y true CN2814786Y (en) | 2006-09-06 |
Family
ID=36949872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520091961 Expired - Lifetime CN2814786Y (en) | 2005-07-27 | 2005-07-27 | Non-iron core permanent-mgnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814786Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370684C (en) * | 2005-07-27 | 2008-02-20 | 沈阳工业大学 | Radial coreless permanent magnet motor |
-
2005
- 2005-07-27 CN CN 200520091961 patent/CN2814786Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370684C (en) * | 2005-07-27 | 2008-02-20 | 沈阳工业大学 | Radial coreless permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080220 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |