CN201197090Y - Trichotomy mixed magnetic pole field excitation single pivot brushless generator - Google Patents
Trichotomy mixed magnetic pole field excitation single pivot brushless generator Download PDFInfo
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- CN201197090Y CN201197090Y CNU2008201128623U CN200820112862U CN201197090Y CN 201197090 Y CN201197090 Y CN 201197090Y CN U2008201128623 U CNU2008201128623 U CN U2008201128623U CN 200820112862 U CN200820112862 U CN 200820112862U CN 201197090 Y CN201197090 Y CN 201197090Y
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Abstract
The utility model relates to a trichotomy hybrid magnetic pole excitation single armature brushless generator, which is characterized in that a stator and a rotator respectively have an iron core; no exciting dynamo is arranged; inherent triple-frequency harmonic induction electric excitation in a motor air gap magnetic field and excitation of a permanent magnet are mixed to act; the iron core of the rotator has a salient pole type field structure; and each magnetic pole is divided into three parts; and the middle part is provided with a built-in permanent magnet, the left part and the right part are electric excitation magnetic fields which are formed by self rectification through triple-frequency harmonic generation in a rotator winding induction air gap magnetic field, and the three parts form the like polarity, thereby forming a hybrid magnetic field. The trichotomy hybrid magnetic pole excitation single armature brushless generator has a simple structure, simultaneously overcomes the disadvantages of a permanent magnet generator and an electric excitation brushless generator, and integrates the advantages of the two kinds of the generators, thereby achieving the effect of gaining two advantages by a single move and having popularization significance.
Description
Technical field
The utility model relates to a kind of three-division mixed magnetic pole excitation single-hinge brushless generator.
Background technology
Because permanent magnet generator and electric exciting brushless generator respectively have pluses and minuses, their advantage is integrated, their shortcoming is overcome improvement, just become one of target of brushless generator development pursuit, produced various permanent magnetism thus and powered up the various schemes of excitation composite excitation.So far, better mode remains and has the independent magnetic circuit mixed excitation mode.But this composite excitation brushless electric generator structure complexity, axial length is long, involves great expense.In promotion and application, be restricted.And the induction type of single pivot formula structure and brushless exciter electricity excitation adds the composite excitation structural development of magneto, simplifies the structure, optimizes performance, shortens axial length, reduces cost and have remarkable benefit.
Summary of the invention
The purpose of this utility model is to provide a kind of three-division mixed magnetic pole excitation single-hinge brushless generator.Solved the electric excitation in the composite excitation and partly mostly be armature, complex structure, the problem of the idle waste of the long intrinsic harmonic power of axial length.
The utility model is achieved like this, the stator of generator, rotor all have only an iron core, and do not have exciter.In stator core, rotor magnetic pole is a salient pole type under the armature winding, and each N utmost point all is divided into three parts, forms three sub-N utmost points, and mid portion is bigger, built-in permanent magnet.Form the sub-N utmost point of permanent magnet, about two parts less, dash between the each several part hole slot is arranged, arrange the rotor winding in the hole slot, the rotor winding is around each smaller portions, and the rotor winding is generated electricity by the triple-frequency harmonics induction in the motor gas-gap magnetic field and through the diode rectification excitation, forms the sub-N utmost point of two induced electricity excitations, these three the sub-N utmost points are mixed into a N utmost point, and the also similar above-mentioned trichotomy of each S utmost point constitutes equally.This has just formed the constant voltage mode that permanent magnet generator adds triple-frequency harmonics induced electricity excitation.This structure is suitable for single three-phase brushless generator.
The utility model has the advantages that: 1, non-brushing; 2, no exciterization; 3, single pivot; 4, the additional excitation of triple-frequency harmonics induced electricity has the phase compound excitation characteristic, and utilizes the intrinsic triple-frequency harmonics in the air-gap field, and changing discarded is to utilize to save the energy, raises the efficiency; 5, permanent magnet master excitation efficiency high temperature rise is low; 6, composite excitation constant voltage; 7, comprehensive excellent electrical properties.
Description of drawings
Fig. 1 is a rotor structure schematic diagram of the present utility model.
The sub-N utmost point 2 of electric excitation, rotor winding 3, the sub-N utmost point 4 of permanent magnet, the permanent magnet N utmost point 5, rotor winding 6, the sub-N utmost point 7 of electric excitation, rotating shaft 8, damping hole 9, rotor winding 10, the sub-S level 11 permanent magnet S utmost points 12 of permanent magnet, rotor winding 13, the sub-S utmost point of the sub-S utmost point 14 electric excitations of electric excitation in the drawings, 1,
Embodiment
As shown in Figure 1, it is the rotor of the mixed excitation electric machine of a two-pole machine, rotor punching shape such as sextupole salient pole overall structure, in fact two big utmost points are arranged, be the sub-N utmost point 3 of permanent magnet and the sub-S level 10 of permanent magnet, slot is wherein arranged, the built-in permanent magnet N utmost point 4 and the permanent magnet S utmost point 11 in the hole, under in the slotted eye on four the less utmost point both sides rotor winding 2 is arranged, rotor winding 5, rotor winding 9, rotor winding 12, triple-frequency harmonics in these rotor winding induction motor air-gap fields, each rotor winding is excitation after inserting the diode halfwave rectifier, form the sub-N utmost point 1 of electric excitation, the sub-N utmost point 6 of electricity excitation, the sub-S utmost point 13 of electricity excitation, the sub-S utmost point 14 of electricity excitation, so sub-N utmost point 1 of electric excitation, the sub-N utmost point 6 of the sub-N utmost point 3 of permanent magnet and electric excitation forms N and extremely mixes magnetic pole, the sub-S level 10 of permanent magnet, the sub-S utmost point 14 of the electricity S utmost point 13 of excitation and electric excitation forms S utmost point combined magnetic pole, rotor punching changes press fit in rotating shaft 7, and punching repeatedly presses the two ends, back to have damping sheet and the damper rod welding of passing damping hole 8 to form cage type half damping system.
Rotor turns to rated speed, the permanent magnet cutting stator armature winding set point of generating electricity, behind the motor bringing onto load, triple-frequency harmonics magnetic field in the air-gap field strengthens, rotor winding induction generating self-rectifying excitation electricity is strengthened, make mixed magnetic field strengthen compensation, reach the constant voltage purpose because of load voltage descends.The air-gap field triple-frequency harmonics has the phase compound excitation characteristic in this motor, thereby constant-voltage characteristic is good, because armature is by sinusoidal design of Windings and be provided with half damping, motor is stable, good voltage waveform, electric property excellence.Electric machine structure is simple, axial length is short, make electric excitation and permanent magnetism composite excitation, and wherein electric excitation is to utilize harmonic power intrinsic in the motor gas-gap, changes discarded for utilizing, efficient improves 3%, and the phase compound excitation performance is arranged, receive the effect of killing two birds with one stone, and reduce cost, optimize performance, reached purpose of the present invention.
Claims (1)
1. three-division mixed magnetic pole excitation single-hinge brushless generator, it is characterized in that deciding of generator, rotor all respectively has only an iron core, and there is not exciter, rotor magnetic pole is a salient pole type, each N utmost point all is divided into three parts, form three sub-N utmost points, the dynatron N utmost point is bigger, built-in permanent magnet forms the sub-N utmost point of permanent magnet, about two sub-N extremely less, dash between the each several part hole slot is arranged, arrange the rotor winding in the hole slot, the rotor winding around two than the boy N utmost point, the rotor winding be subjected in the motor gas-gap magnetic field triple-frequency harmonics induction generating and through the diode rectification excitation, form the sub-N utmost point of two induced electricity excitations, these three the sub-N utmost points are mixed into a N utmost point, the also similar trichotomy of each S utmost point constitutes equally, and this has just formed the constant voltage mode that permanent magnet generator adds triple-frequency harmonics induced electricity excitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201128623U CN201197090Y (en) | 2008-04-30 | 2008-04-30 | Trichotomy mixed magnetic pole field excitation single pivot brushless generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201128623U CN201197090Y (en) | 2008-04-30 | 2008-04-30 | Trichotomy mixed magnetic pole field excitation single pivot brushless generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201197090Y true CN201197090Y (en) | 2009-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201128623U Expired - Fee Related CN201197090Y (en) | 2008-04-30 | 2008-04-30 | Trichotomy mixed magnetic pole field excitation single pivot brushless generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201197090Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480201A (en) * | 2010-11-25 | 2012-05-30 | 余虹锦 | Permanent magnet brushless single-phase synchronous generator using novel hybrid excitation way |
-
2008
- 2008-04-30 CN CNU2008201128623U patent/CN201197090Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480201A (en) * | 2010-11-25 | 2012-05-30 | 余虹锦 | Permanent magnet brushless single-phase synchronous generator using novel hybrid excitation way |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20130430 |