CN2141618Y - Single-phase brushfree neodymium iron boron ac generator - Google Patents
Single-phase brushfree neodymium iron boron ac generator Download PDFInfo
- Publication number
- CN2141618Y CN2141618Y CN 92233780 CN92233780U CN2141618Y CN 2141618 Y CN2141618 Y CN 2141618Y CN 92233780 CN92233780 CN 92233780 CN 92233780 U CN92233780 U CN 92233780U CN 2141618 Y CN2141618 Y CN 2141618Y
- Authority
- CN
- China
- Prior art keywords
- phase
- generator
- transverse axis
- rotor
- magneto alternator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a magneto alternator. A pair of additional magnetic poles is added on a rotor of a motor; meanwhile, a group of transverse axis coils are arranged on a stator. Proper capacitors are connected in series with the transverse axis coils which can generate advanced electric currents. When load electric currents are augmented, total magnetic flux is increased, and thereby, the characteristic of the output voltage is improved to satisfy the used requirement. The magneto alternator has the advantages of simple structure, no slide rings or electric brushes, no need of a direct current excitation power supply, high efficiency, high reliability and low temperature rise. The technology is also applicable to a three-phase magneto alternator.
Description
The utility model relates to a kind of permanent magnet generator.
Present single-phase alternator all adopts electric excitation structure, owing to exist brush and slip ring, so move unreliablely, needs often to safeguard, and will feed direct current excitation on the rotor that produce the loss heating, operational efficiency is low.
Adopt general permanent magnet generator, because permanent magnetism can't be regulated, output voltage changes greatly, can not satisfy instructions for use.
The purpose of this utility model is to provide a kind of brushless single phase Nd-Fe-B permanent magnetic alternating current generator with interpole, and this generator does not have the slip ring brushless, does not need dc excitation power, thereby efficient height, temperature rise are low, reliable.
The utility model is realized as follows, on the rotor of motor, increase an interpole, on the stator one group of transverse axis coil is housed simultaneously, the electric capacity of serial connection suitable capacity on coil, make it to produce leading electric current, when load current increases, total magnetic flux is increased to some extent, thereby improve the characteristic of output voltage, make it satisfy the requirement of using, accompanying drawing is the horizontal nodal section figure of this generator, as shown in the figure: two cover windings are arranged on the stator ［ 1 ］, one group is the d-axis winding ［ 8 ］ that produces output voltage, and one group is the transverse axis winding ［ 9 ］ that produces quadrature-axis voltage, series connection one fixed capacity on the transverse axis winding, the rotor body ［ 2 ］ that one magnetic conduction is arranged on rotor, on rotor body, evenly have ventilating hole channel ［ 6 ］, the neodymium iron boron permanent magnet ［ 3 ］ that on the cylindrical of body, boning, magnet steel need be fixed reliably.On rotor by being placed with a pair of interpole that constitutes by magnetic conductor (or claiming voltage stabilizing utmost point) ［ 4 ］, the effect of interpole is that magnetic flux can access reinforcement to greatest extent when making load, the material of magnetic conductor will be considered the requirement of magnetic conductivity and intensity, and shape will be determined by the analysis of Distribution of Magnetic Field.Between interpole and the stator core enough gaps to be arranged, so that the transverse axis parameter of motor does not increase too much.Thereby influence the stability of output voltage.
On rotor also by being placed with the damping winding that sliver ［ 5 ］ and end ring constitute, thereby weaken the effect in backward magnetic field.
Because this generator Structure is simple, no slip ring, brushless does not need dc excitation power, thereby the efficient height, and temperature rise is low, and is reliable.Since used Nd-Fe-Bo permanent magnet material, the air gap flux density height, and volume is little, and is in light weight.This technology is equally applicable to three-phase permanent magnet alternator.
Claims (1)
- A kind of brushless single phase Nd-Fe-B permanent magnetic alternating current generator of the band voltage stabilizing utmost point that constitutes by stator, rotor, winding, it is characterized in that on rotor by being placed with a pair of interpole [4] that constitutes by magnetic conductor, at stator one group of transverse axis coil [9] is housed, is serially connected with electric capacity on the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233780 CN2141618Y (en) | 1992-09-15 | 1992-09-15 | Single-phase brushfree neodymium iron boron ac generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233780 CN2141618Y (en) | 1992-09-15 | 1992-09-15 | Single-phase brushfree neodymium iron boron ac generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2141618Y true CN2141618Y (en) | 1993-09-01 |
Family
ID=33776005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92233780 Expired - Fee Related CN2141618Y (en) | 1992-09-15 | 1992-09-15 | Single-phase brushfree neodymium iron boron ac generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2141618Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362732C (en) * | 2004-07-22 | 2008-01-16 | 华中科技大学 | Permanent magnet compensation type pulse AC generator |
| CN101145725B (en) * | 2007-07-30 | 2010-09-08 | 哈尔滨工业大学 | Self-excitation full empty core passive compensation pulse generator |
| CN102780373A (en) * | 2012-07-06 | 2012-11-14 | 天津大学 | Permanent magnet motor with obvious rotor position features |
-
1992
- 1992-09-15 CN CN 92233780 patent/CN2141618Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362732C (en) * | 2004-07-22 | 2008-01-16 | 华中科技大学 | Permanent magnet compensation type pulse AC generator |
| CN101145725B (en) * | 2007-07-30 | 2010-09-08 | 哈尔滨工业大学 | Self-excitation full empty core passive compensation pulse generator |
| CN102780373A (en) * | 2012-07-06 | 2012-11-14 | 天津大学 | Permanent magnet motor with obvious rotor position features |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |