CN1079592A - A kind of p-m rotor of squirrel-cage shaded-pole structure - Google Patents
A kind of p-m rotor of squirrel-cage shaded-pole structure Download PDFInfo
- Publication number
- CN1079592A CN1079592A CN 92104149 CN92104149A CN1079592A CN 1079592 A CN1079592 A CN 1079592A CN 92104149 CN92104149 CN 92104149 CN 92104149 A CN92104149 A CN 92104149A CN 1079592 A CN1079592 A CN 1079592A
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- China
- Prior art keywords
- rotor
- bar
- mouse cage
- shaped magnet
- conductive core
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A kind of p-m rotor of squirrel-cage shaded-pole structure can be used for alternating current motor and generator.It has magnetic conductive core.It is characterized in that: outside magnetic conductive core, be surrounded by the mouse cage shelf that has caulking groove, the mouse cage shelf uses the nonferromagnetic material manufacturing, in caulking groove, be inlaid with the bar-shaped magnet that rare earth permanent-magnetic material is made, outside bar-shaped magnet and mouse cage shelf, be with the guard ring that nonferromagnetic material is made, magnetic conductive core, the mouse cage shelf, bar-shaped magnet and guard ring are affixed mutually.Because the magnet of rare earth permanent-magnetic material is a rectangular tiles, and is easy to process.The force structure of rotor uses the common material manufacturing, and higher intensity is arranged.
Description
A kind of p-m rotor of squirrel-cage shaded-pole structure, it belongs to parts of electric driver, can be used for the alternating current motor and the generator of various requirement.
Because popularizing and development of electric power industry of AC network all uses motor to make power set in various device widely.Use the device structure of this electric driver simple, easy to use.But, make in electricity drives that output operating mode and requirement that requirement can the control break motor have low-speed big characteristic preferably along with the continuous development of technology, this is that general induction motor is not accomplished.In order to inherit the constructional simplicity of common AC motor, and obtain the controllability and the low-speed big characteristic of its operating mode, greatly develop the ac synchronous motor of rare-earth permanent magnet rotor now, can reach the purpose of controlled operation conditions by changing the frequency shift output speed of input current.And rare earth material has very high remnant field intensity and magnetic energy product, thereby good low-speed and large moment characteristics is arranged.But because rare earth permanent-magnetic material is a kind of very difficult material processed, it generally uses the processing method of powder metallurgy to make blank.Thereby manufacturing integral type rare earth permanent-magnetic material rotor is very difficult.Particularly large-sized rotor, its manufacturing process is just more complicated, to the requirement height of manufacturing equipment, decrease in yield.And also can make rotor strength descend because internal rotor loosens.
The objective of the invention is to invent a kind of rare-earth permanent magnet rotor of new-type structure, it uses the mode of mouse cage split-pole to obtain the rotor field, thereby simplified manufacturing technique reduces manufacturing cost greatly.
Structure of the present invention as shown in Figure 1, it has magnetic conductive core 1, it is characterized in that: outside magnetic conductive core, be surrounded by the mouse cage shelf 2 that has caulking groove, mouse cage shelf 2 uses the nonferromagnetic material manufacturing, in the caulking groove of mouse cage shelf 2, be inlaid with the bar-shaped magnet 3 that rare earth permanent-magnetic material is made, outside bar-shaped magnet 3 and mouse cage shelf 2, be with the guard ring 4 that nonferromagnetic material is made, magnetic conductive core 1, mouse cage shelf 2, bar-shaped magnet 3 and guard ring 4 are affixed mutually.
Accompanying drawing 1 is a structure cutaway view of the present invention.
Accompanying drawing 2 is a drawing in side sectional elevation of the present invention.
Among the present invention, the two sides, bar-shaped magnet 3 front and back (inside and outside) that rare earth permanent-magnetic material is made is two magnetic poles.When mounted, the bar-shaped magnet of on the rotor symmetric position, installing 3 just in time opposite to outer magnetic pole, the magnetic by magnetic conductive core 1 connects, and forms a pair of rotor magnetic pole, makes rotor have the magnetic circuit character of integral type p-m rotor.In the bar-shaped magnet 3 that embeds, how right can have, and the external pole polarity of adjacent several bar-shaped magnets 3 is identical, forms the rotor magnetic pole scope of a broad, can match with the magnet pole widths that the stator winding coil produces.Bar-shaped magnet 3 can a plurality of one group of arrangement, and the pole orientation between group is opposite, forms multisegmented rotor (as four utmost points, sextupole, the ends of the earth etc.), satisfies the needs of different motors.
The method that the present invention uses magnetic conductive core to inlay the bar-shaped magnet of use rare earth permanent-magnetic material manufacturing outward forms the whole pole pair of rotor, thereby reaches the effect of using whole rare earth permanent-magnetic material to make rotor.Because the magnet processed of rare earth permanent-magnetic material is to make rectangular tiles, thereby process very conveniently, be convenient to mechanization and produce in enormous quantities.The force structure of rotor uses the common material manufacturing, and higher intensity is arranged.The allowance of bar-shaped magnet is very little, rare earth material that can conserve expensive.
In the present invention, the bar-shaped magnet 3 of rare earth material manufacturing can use the Nd-Fe-B series rareearth magnetic material, also can use cerium cobalt based material.Bar-shaped magnet 3 can be an integral body, also can be to make fritter to be spliced along its length.Such magnet has more versatility, for the rotor of different length, only need be spliced just by the fritter magnet of different numbers.
Magnetic conductive core 1 among the present invention can use the rotor structure form of common electric machine, use low-carbon (LC) or less than the medium carbon steel manufacturing of 35#, also can adopt mandrel of the higher made of intensity, outside mandrel, be superimposed with silicon steel sheet, to increase its permeability, even can use common squirrel cage motor rotor retrofit, remove the mouse cage coil of the copper bar composition of embedding.
Mouse cage shelf 2 among the present invention should use the nonferromugnetic material manufacturing, as stainless steel, aluminium alloy, titanium alloy, and various nonmetallic materials.Its effect is to keep bar-shaped magnet 3 to be in definite position, to avoid rotor bar-shaped magnet 3 stressed generation displacements when working.
Guard ring 4 among the present invention also uses the nonferromugnetic material manufacturing, also can use stainless steel, titanium alloy and as nonmetallic materials such as fiberglass.The effect of guard ring 4 is to protect rotor when high speed rotating, and bar-shaped magnet 3 is not subjected to action of centrifugal force and throws away, thereby certain intensity requirements should be arranged.
Mutual affixed of magnetic conductive core 1 among the present invention, mouse cage shelf 2, bar-shaped magnet 3 and guard ring 4 can use various securing members to connect, as bolt, rivet, welding etc., and their mixing.The form that also can adopt plastic bonding to solidify is bonded as one above-mentioned part as using epoxy resin, solidifies then, forms a solid integral body, can bear higher centrifugal force, is used for high rotational speed.
Claims (1)
1, a kind of p-m rotor of squirrel-cage shaded-pole structure, it has magnetic conductive core 1, it is characterized in that: outside magnetic conductive core, be surrounded by the mouse cage shelf 2 that has caulking groove, mouse cage shelf 2 uses the nonferromagnetic material manufacturing, in the caulking groove of mouse cage shelf 2, be inlaid with the bar-shaped magnet 3 that rare earth permanent-magnetic material is made, outside bar-shaped magnet 3 and mouse cage shelf 2, be with the guard ring 4 that nonferromagnetic material is made, magnetic conductive core 1, mouse cage shelf 2, bar-shaped magnet 3 and guard ring 4 are affixed mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92104149 CN1079592A (en) | 1992-06-04 | 1992-06-04 | A kind of p-m rotor of squirrel-cage shaded-pole structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92104149 CN1079592A (en) | 1992-06-04 | 1992-06-04 | A kind of p-m rotor of squirrel-cage shaded-pole structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1079592A true CN1079592A (en) | 1993-12-15 |
Family
ID=4940641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92104149 Pending CN1079592A (en) | 1992-06-04 | 1992-06-04 | A kind of p-m rotor of squirrel-cage shaded-pole structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1079592A (en) |
-
1992
- 1992-06-04 CN CN 92104149 patent/CN1079592A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |