CN201345599Y - Self-voltage stabilizing permanent magnet alternator - Google Patents
Self-voltage stabilizing permanent magnet alternator Download PDFInfo
- Publication number
- CN201345599Y CN201345599Y CNU2009201129160U CN200920112916U CN201345599Y CN 201345599 Y CN201345599 Y CN 201345599Y CN U2009201129160 U CNU2009201129160 U CN U2009201129160U CN 200920112916 U CN200920112916 U CN 200920112916U CN 201345599 Y CN201345599 Y CN 201345599Y
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- stator core
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Abstract
The utility model relates to a self-voltage stabilizing permanent magnet alternator, and belongs to the technical field of permanent magnet alternators. The main leading-out wires at two ends of the coil winding of the permanent magnet alternator is connected with a switching control circuit; the coil winding is provided with pigtails at a part of coil single turns of coil which is located in a stator iron core coil slot; the pigtails are also connected with the switching control circuit which is connected with the output end of a generator; the output end of the generator is connected with a output voltage monitoring circuit; the feedback of the output voltage monitoring circuit is connected with the switching control circuit; and the switching control circuit superimposes the voltage of the main leading-out wires of two ends of the coil winding by contrasting a rated voltage and selecting different pigtails according to the signals of the output voltage monitoring circuit, so that the output end of the generator can output the rated voltage.
Description
Technical field
The present invention relates to a kind of self-voltage-stabilizing permanent magnet AC generator, belong to the technical field of magneto alternator.
Background technology
At present, conventional middle low power magneto alternator in the higher occasion of power supply required precision, is to adopt AC-to DC to arrive the modulation power source voltage stabilizing that exchanges again substantially, and this kind method is when load impact, anticlimax, and voltage accuracy can not guarantee; When external load changed greatly, stabilized voltage power supply was damaged easily.The process AC-to DC arrives the power supply of ac modulation again, and the waveform of output is the sine wave of modulation, and the power supply distortion factor is big; The complete machine structure volume is big, and weight is bigger.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, volume is little, precision is high, reliability is high self-voltage-stabilizing permanent magnet AC generator, solved the sine wave of the waveform of the existing output of existing magneto alternator for modulation, the power supply distortion factor is big, problems such as the complete machine structure volume is big, and weight is bigger.
Above-mentioned technical purpose of the present invention solves by the following technical programs: it comprises stator core and is positioned at the front end housing and the rear end cap of stator core front and back end, stator core is provided with coil windings, coaxial swivel bearing has rotating shaft in the stator core, rotating shaft is provided with p-m rotor, the outer end of rotating shaft is provided with fan blade, it is characterized in that described stator core is provided with several along the equally distributed coil groove of circumference, described coil windings by winding respectively in the coil groove of stator core and several coils that are cascaded mutually constitute, each coil that is positioned at stator core coil groove is made of some coil single turns of mutual series connection, the main lead at coil windings two ends is connected with control switching circuit, the coil sections single turn that coil windings is positioned at the coil of stator core coil groove is provided with tap, described tap also is connected with control switching circuit, described control switching circuit connects the output of generator, the output of described generator is connected with the output voltage observation circuit, described output voltage observation circuit feedback connects control switching circuit, control switching circuit selects different taps that the main lead voltage at coil windings two ends is superposeed every cycle regular hour according to the signal contrast rated voltage of output voltage observation circuit, makes the output output rated voltage of generator.The every phase output voltage of stator coil is the voltage summation of the coil single turn of being connected, and when generator was unloaded, electric current was zero, and pressure drop is zero, and output voltage is higher.The generator full load, stator current reaches rated value, and the stator coil pressure drop is big, thereby output voltage is on the low side.When generator was in hot work, the output voltage offrating that electric voltage observation circuit monitors generator was bigger, and then control switching circuit switches the number of turn of tap with the coil single turn that increases more every phase and connected, makes output voltage stabilization.Otherwise, then control switching circuit switch tap with the number of turn of the coil single turn that reduces every phase and connected so that the stable voltage of generator output.At aforementioned, in the coil that every phase is connected, extract different coil taps, by the tap of change motor coil, thereby change output voltage, reach the output voltage stabilization of generator.
As preferably, be connected by bidirectional triode thyristor between described tap and the control switching circuit.
As preferably, the time cycle of described control switching circuit was smaller or equal to 0.05 second.
Therefore, the present invention have simple in structure, volume is little, precision is high, high reliability features.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is an electrical block diagram of the present invention.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: as depicted in figs. 1 and 2, front end housing 1 and rear end cap 2 lay respectively at the front-end and back-end of stator core 3, stator core 3 is provided with coil windings 4, coaxial swivel bearing has rotating shaft 5 in the stator core 3, rotating shaft 5 is provided with p-m rotor 6, the outer end of rotating shaft 5 is provided with fan blade 7, stator core 3 is provided with a plurality of along the equally distributed coil groove of circumference, coil windings 4 by winding respectively in the coil groove of stator core and a plurality of coils that are cascaded mutually constitute, each coil that is positioned at stator core coil groove is made of a plurality of coil single turns of mutual series connection, the main lead 8 at coil windings 4 two ends is connected with control switching circuit 9, the coil sections single turn that coil windings 4 is positioned at the coil of stator core coil groove is provided with tap 10, tap is connected with control switching circuit 9 by bidirectional triode thyristor, control switching circuit 9 connects the output of generator, the output of generator is connected with output voltage observation circuit (not shown), output voltage observation circuit feedback connects control switching circuit 9, control switching circuit selected different taps that the main lead voltage at coil windings two ends is superposeed every 0.05 second according to the signal contrast rated voltage of output voltage observation circuit, made the output output rated voltage of generator.The every phase output voltage of stator coil is the voltage summation of the coil single turn of being connected, and when generator was unloaded, electric current was zero, and pressure drop is zero, and output voltage is higher.The generator full load, stator current reaches rated value, and the stator coil pressure drop is big, thereby output voltage is on the low side.
As shown in Figure 2, when generator 11 connection loads 12 are in hot work, the output voltage offrating that electric voltage observation circuit monitors generator is bigger, and then control switching circuit 9 switches the number of turn of taps 10 with the coil single turn that increases more every phase and connected, makes output voltage stabilization.Otherwise, then control switching circuit 9 switch taps 10 with the number of turn of the coil single turn that reduces every phase and connected so that the stable voltage of generator output.At aforementioned, in the coil that every phase is connected, extract different coil taps, by the tap of change motor coil, thereby change output voltage, reach the output voltage stabilization of generator.
Claims (3)
1, a kind of self-voltage-stabilizing permanent magnet AC generator, comprise stator core and be positioned at the front end housing and the rear end cap of stator core front and back end, stator core is provided with coil windings, coaxial swivel bearing has rotating shaft in the stator core, rotating shaft is provided with p-m rotor, the outer end of rotating shaft is provided with fan blade, it is characterized in that described stator core is provided with several along the equally distributed coil groove of circumference, described coil windings by winding respectively in the coil groove of stator core and several coils that are cascaded mutually constitute, each coil that is positioned at stator core coil groove is made of some coil single turns of mutual series connection, the main lead at coil windings two ends is connected with control switching circuit, the coil sections single turn that coil windings is positioned at the coil of stator core coil groove is provided with tap, described tap also is connected with control switching circuit, described control switching circuit connects the output of generator, the output of described generator is connected with the output voltage observation circuit, described output voltage observation circuit feedback connects control switching circuit, control switching circuit selects different taps that the main lead voltage at coil windings two ends is superposeed every cycle regular hour according to the signal contrast rated voltage of output voltage observation circuit, makes the output output rated voltage of generator.
2, self-voltage-stabilizing permanent magnet AC generator according to claim 1 is characterized in that being connected by bidirectional triode thyristor between described tap and the control switching circuit.
3, self-voltage-stabilizing permanent magnet AC generator according to claim 1 and 2, the time cycle that it is characterized in that described control switching circuit was smaller or equal to 0.05 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201129160U CN201345599Y (en) | 2009-01-19 | 2009-01-19 | Self-voltage stabilizing permanent magnet alternator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201129160U CN201345599Y (en) | 2009-01-19 | 2009-01-19 | Self-voltage stabilizing permanent magnet alternator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201345599Y true CN201345599Y (en) | 2009-11-11 |
Family
ID=41277183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201129160U Expired - Fee Related CN201345599Y (en) | 2009-01-19 | 2009-01-19 | Self-voltage stabilizing permanent magnet alternator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201345599Y (en) |
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2009
- 2009-01-19 CN CNU2009201129160U patent/CN201345599Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20180119 |