CN2105134U - Voltage-stablizing permanent magnet dynamo - Google Patents
Voltage-stablizing permanent magnet dynamo Download PDFInfo
- Publication number
- CN2105134U CN2105134U CN 91231518 CN91231518U CN2105134U CN 2105134 U CN2105134 U CN 2105134U CN 91231518 CN91231518 CN 91231518 CN 91231518 U CN91231518 U CN 91231518U CN 2105134 U CN2105134 U CN 2105134U
- Authority
- CN
- China
- Prior art keywords
- utmost point
- movable claw
- claw utmost
- permanent magnet
- main shaft
- 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.)
- Granted
Links
- 210000000078 claw Anatomy 0.000 claims abstract description 87
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims description 2
- 230000035699 permeability Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
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- Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model belongs to the technical field of automotive permanent magnetic generators, which is characterized in that the voltage-stabilizing permanent magnet dynamo comprises a movable claw pole, an annular permanent magnet, a fixed claw pole and a regulating mechanism of the movable claw pole. The fixed claw pole is fixed with a spindle, when the rotation speed of a motor is changed, the regulating mechanism of the movable claw pole can drive the movable claw pole to move tangentially and axially, so the gap of the magnetic return path is changed, the magnetic flux through a stator coil is changed, the purpose of rotation speed change and voltage stabilization is reached. The utility model has the advantages of simple structure, low cost, good voltage-stabilizing property, long service life, etc., and the utility model is widely applicable to small-size motor vehicles such as automobiles, tractors, etc.
Description
The utility model relates to a kind of car permanent magneto, particularly a kind of generator that is applicable to no accumulator railcar.
Mainly there is the shortcoming of spread of voltage in the permanent magnet generator that uses on the current mobility vehicle, and the rotating speed high voltage is also high, and the rotating speed low-voltage is also low.The patent of application number CN85100421A relates to a kind of permanent magnetism and electromagnetism brushless generator excited combinably, it is characterized in that having adopted flux sleeve and magnetic guiding loop, by selecting rational air gap, reach the purpose of regulating magnetic circuit magnetic flux burning voltage, but also there is complex structure, the shortcoming that cost is higher.
The purpose of this utility model just is the shortcoming at existing permanent magnet generator, and the voltage-stabilizing permanent magnet formula generator that a kind of voltage regulation performance is better, structure is more reasonable, cost is lower is provided.
The purpose of this utility model is achieved through the following technical solutions.Voltage-stabilizing permanent magnet formula generator comprises casing, main shaft, belt pulley, stator and rotor assembly.Rotor assembly comprises the governor motion of the fixed claw utmost point, the movable claw utmost point, annular permanent magnet and the movable claw utmost point.The fixed claw utmost point and the movable claw utmost point are cup-shaped revolution, and its rim of a cup is relative, and rim of a cup all has some zigzag utmost point pawls chimeric and gapped mutually with enclosing.In the toroidal cavity that the fixed claw utmost point, the movable claw utmost point and main shaft surround an annular permanent magnet is arranged, and be bonded on the inner face of the fixed claw utmost point.The extremely outer governor motion that the movable claw utmost point is arranged of movable claw, it and the movable claw utmost point link together.When main shaft rotated, the governor motion of the movable claw utmost point made the movable claw utmost point rotate with respect to the fixed claw utmost point under the effect of centrifugal heavy iron, has changed the relative position between utmost point pawl and the utmost point pawl.The movable claw utmost point and axle sleeve tight fit, axle sleeve and main shaft also move axially when the movable claw utmost point and axle sleeve sway together together for being slidingly matched.The fixed claw utmost point is fixedly mounted on the main shaft by its axle sleeve.The opposed end indention that movable claw pole axis cover and fixed claw pole axis overlap intersects helical teeth, the two mutual embedding is associated with certain interval, so can act on the tangential force that movable claw is extremely gone up to governor motion, convert the axial force at movable claw pole axis cover place to, when the movable claw utmost point is swayed with respect to the fixed claw utmost point, also move axially.
Described voltage stabilization permanent magneto generator also has following technical characterictic.In order to prevent between the annular permanent magnet and the movable claw utmost point, directly contact between movable claw utmost point utmost point pawl and the fixed claw utmost point utmost point pawl and be difficult for separating, all post one deck non-magnet material film in its surface, as copper film.Main shaft and axle sleeve are made by copper or other non-magnet material, and the fixed claw utmost point and movable claw extremely all adopt permeability magnetic material to make.The governor motion of the movable claw utmost point is made of the centrifugal heavy iron of L type, pull bar, universal joint and extension spring.Pull bar one end is connected with centrifugal heavy iron by universal joint, and the other end is connected with the movable claw utmost point by hinge.Extension spring one end is connected with centrifugal heavy iron, and the other end is fixed on the main shaft.
Principle of stabilized voltage of the present utility model is: annular permanent magnet produces magnetic field, and its magnetic line of force passes annular permanent magnet and movable claw clearance between poles successively along main magnetic circuit, the movable claw utmost point, and utmost point pawl gap and stator winding, the fixed claw utmost point turns back to annular permanent magnet.The density of line of magnetic force of wherein passing stator winding is relevant with the size in gap, above-mentioned two place.When generator was in static state or low speed state, the gap at two places was all less, and the less magnetic flux of the magnetic resistance of whole main magnetic circuit is bigger, the density of line of magnetic force of passing stator winding is bigger, help stator winding and produce high voltage, along with the raising gradually of rotating speed, voltage more has the trend of rising.But, because the governor motion of the movable claw utmost point hauls the movable claw utmost point and axle sleeve thereof and turns an angle, and move axially simultaneously under centrifugal action.Gap between the annular permanent magnet and the movable claw utmost point is increased, make the chimeric gap between the utmost point pawl depart from symmetric position again simultaneously, a side clearance becomes big opposite side and diminishes, and causes the magnetic resistance in utmost point pawl gap to reduce, and leakage field weakens.Above-mentioned two place's magnetic resistance one place increases after a place reduces to cancel each other, the magnetic resistance of whole main magnetic circuit then changes not too big, total magnetic flux also curvedization is not too big, but the density of line of magnetic force of passing stator winding reduces because of leakage field weakens obviously, thereby it is stable and do not have a big fluctuation to keep induced voltage.
The utility model compared with prior art, its major advantage is: do not need separate excitation during this generator starting, voltage regulation performance is good, it has saved dynamo governor and magnetizing coil, magnetic guiding loop, flux sleeve etc., so simple in structure, cheap, finishing is convenient, and stable performance, useful life is longer.
Fig. 1 is an axial section structural representation of the present utility model.Fig. 2 is the A-A cross-sectional schematic of Fig. 1.Fig. 3 is the main schematic diagram of looking of pawl pole axis cover.Fig. 4 is the B-B cross section view of Fig. 3.Wherein 1 is casing, and 2 is main shaft, and 3 is belt pulley, 4 is stator, and 5 is rotor assembly, and 6 is the fixed claw utmost point, 7 is the movable claw utmost point, and 8 is annular permanent magnet, and 9 is movable claw pole axis cover, 10 is the governor motion of the movable claw utmost point, 11 is fixed claw pole axis cover, and 12 is centrifugal heavy iron, and 13 is pull bar, 14 are extension spring, and 15 is fulcrum.
Below in conjunction with accompanying drawing in detail embodiment of the present utility model is described in detail.This generator mainly comprises parts such as casing 1, main shaft 2, belt pulley 3, stator 4, rotor assembly 5.Rotor assembly 5 is made of the governor motion 10 of the fixed claw utmost point 6, the movable claw utmost point 7, movable claw pole axis cover 9, fixed claw pole axis cover 11, annular permanent magnet 8 and the movable claw utmost point.Being fixedly installed togather by axle sleeve 11 between the fixed claw utmost point 6 and the main shaft 2, all is interference fit between the fixed claw utmost point 6 and axle sleeve 11 and axle sleeve 11 and the main shaft 2.The movable claw utmost point 7 is a tight fit with axle sleeve 9, between axle sleeve 9 and the main shaft 2 for being slidingly matched.Each close mutually end of axle sleeve 9 and axle sleeve 11 is processed into zigzag intersection helical teeth respectively, and the two mutual embedding is associated with certain interval.The governor motion 10 of the movable claw utmost point is made of the centrifugal heavy iron 12 of L type, pull bar 13, extension spring 14 and fulcrum 15.The flex point place of the centrifugal heavy iron 12 of L type is provided with bearing pin, and bearing pin is fixed on the fulcrum.Fulcrum 15 is fixed on the main shaft, and centrifugal heavy iron 12 and pull bar 13 are connected by universal joint, and pull bar 13 is connected with the movable claw utmost point 7 by hinge.
Claims (4)
1, a kind of voltage-stabilizing permanent magnet formula generator is made of casing, main shaft, belt pulley, stator and rotor assembly, it is characterized in that rotor assembly comprises the governor motion of the fixed claw utmost point, the movable claw utmost point, annular permanent magnet and the movable claw utmost point; The fixed claw utmost point and the movable claw utmost point are cup-shaped revolution, and its rim of a cup is relative, all have some zigzag utmost point pawls chimeric and gapped mutually around the rim of a cup; In the toroidal cavity that the fixed claw utmost point, the movable claw utmost point and main shaft surround an annular permanent magnet is arranged, and be bonded on the inner face of the fixed claw utmost point; The governor motion that has the movable claw utmost point outside the movable claw utmost point, it and the movable claw utmost point link together, and when main shaft rotated, the governor motion of the movable claw utmost point was under the effect of centrifugal heavy iron, promote the movable claw utmost point and rotate, changed the relative position between utmost point pawl and the utmost point pawl with respect to the fixed claw utmost point; Between the movable claw utmost point and main shaft axle sleeve is set, the movable claw utmost point and axle sleeve tight fit, axle sleeve and main shaft are for being slidingly matched; The fixed claw utmost point is fixedly mounted on the main shaft by its axle sleeve; The opposed end indention that movable claw pole axis cover and fixed claw pole axis overlap intersects helical teeth, the two mutual embedding is associated with certain interval, it can act on the tangential force that movable claw is extremely gone up to governor motion, convert the axial force at movable claw pole axis cover place to, when the movable claw utmost point is swayed with respect to the fixed claw utmost point, also move axially.
2, according to the described voltage-stabilizing permanent magnet formula of claim 1 generator, it is characterized in that the utmost point pawl surface of the movable claw utmost point, the fixed claw utmost point, the movable claw utmost point all posts one deck non-magnet material film near the inner surface of part mutually with annular permanent magnet.
3, according to the described voltage-stabilizing permanent magnet formula of claim 1 generator, it is characterized in that main shaft and axle sleeve made by non-magnet material, the fixed claw utmost point and the movable claw utmost point are made by permeability magnetic material.
4, according to the described voltage-stabilizing permanent magnet formula of claim 1 generator, the governor motion that it is characterized in that the movable claw utmost point is made of the centrifugal heavy iron of L type, pull bar, universal joint and extension spring, pull bar one end is connected with centrifugal heavy iron by universal joint, the other end is connected with the movable claw utmost point by hinge, extension spring one end is connected with centrifugal heavy iron, and the other end is fixed on the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91231518 CN2105134U (en) | 1991-11-27 | 1991-11-27 | Voltage-stablizing permanent magnet dynamo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91231518 CN2105134U (en) | 1991-11-27 | 1991-11-27 | Voltage-stablizing permanent magnet dynamo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2105134U true CN2105134U (en) | 1992-05-20 |
Family
ID=4936714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91231518 Granted CN2105134U (en) | 1991-11-27 | 1991-11-27 | Voltage-stablizing permanent magnet dynamo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2105134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106689A (en) * | 2020-01-10 | 2020-05-05 | 广东机电职业技术学院 | Rotor, generator and control system adopting magnetic circuit control and control method |
| CN114421681A (en) * | 2022-01-24 | 2022-04-29 | 郑州轻工业大学 | A Unilateral Axial Magnetic Adjustment Device of a Vertical Hybrid Excitation Motor |
-
1991
- 1991-11-27 CN CN 91231518 patent/CN2105134U/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106689A (en) * | 2020-01-10 | 2020-05-05 | 广东机电职业技术学院 | Rotor, generator and control system adopting magnetic circuit control and control method |
| WO2021139086A1 (en) * | 2020-01-10 | 2021-07-15 | 广东机电职业技术学院 | Rotor and generator using magnetic circuit control, and control system and control method |
| JP2022543034A (en) * | 2020-01-10 | 2022-10-07 | 広東机電職業技術学院 | Magnetic circuit control rotor, alternator, control system and control method |
| JP7299659B2 (en) | 2020-01-10 | 2023-06-28 | 広東机電職業技術学院 | Magnetic circuit controlled rotor, alternator and control system |
| CN111106689B (en) * | 2020-01-10 | 2025-07-04 | 广东机电职业技术学院 | Rotor, generator, control system and control method using magnetic circuit control |
| CN114421681A (en) * | 2022-01-24 | 2022-04-29 | 郑州轻工业大学 | A Unilateral Axial Magnetic Adjustment Device of a Vertical Hybrid Excitation Motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |