CN201263114Y - Rotor structure of brushless electric excitation generator and generator - Google Patents
Rotor structure of brushless electric excitation generator and generator Download PDFInfo
- Publication number
- CN201263114Y CN201263114Y CNU2008200531481U CN200820053148U CN201263114Y CN 201263114 Y CN201263114 Y CN 201263114Y CN U2008200531481 U CNU2008200531481 U CN U2008200531481U CN 200820053148 U CN200820053148 U CN 200820053148U CN 201263114 Y CN201263114 Y CN 201263114Y
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- generator
- excitation
- fixed
- pawl
- rotor structure
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- Expired - Lifetime
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a brushless electric motor rotor structure of an excitation generator, and a generator; the brushless electric motor rotor structure comprises a revolving shaft arranged at the end part of an motor body by a bearing, and a disc claw and a ring claw which are fixed on the revolving shaft; an excitation element is fixed on the motor body correspondingly to an annular groove formed by the disc claw and the ring claw; and excitation power is supplied by an external DC power source. The generator adopting the motor rotor structure has reliable operation and long service life; particularly, the rotor structure is simple and is convenient to be processed and assembled, thus reducing cost.
Description
Technical field
The utility model belongs to generator, is specifically related to a kind of rotor structure of brushless electric excitation generator and generator.
Background technology
Generator brushless rotor structure is divided into magneto and two kinds of structures of electric excitation type.The shortcoming of permanent-magnet brushless generator is can not regulate output voltage when rotation speed change; The electric excitation type brushless generator can be realized voltage-regulation when rotation speed change, but present this structure is actually the synthetic of two generators, promptly generator is responsible for providing the field power supply of another generator, the rotor coaxial of two generators, the same housing of stator, the volume of generator is increased, rectifying installation and lead are arranged on the rotor, and rotor damages and the temperature height when rotated easily, the complex structure of axle, difficulty of processing is big, has reduced the reliability of generator.
Present alternator for vehicle, the general type of cooling is oil cooling, water-cooled, air-cooled substantially, natural cooling.Oil cooling, water-cooled generator degree of protection height, but need set up cooling device, installing space increases a lot; Natural cooling type generator degree of protection height, but cooling effect is poor, the too high performance that influences generator voltage controller of temperature rise is also high to the class of insulation requirement of generator; The air-cooled generator of inner-cooled, degree of protection is not high; Common external-cooling type generator degree of protection height, but temperature of rotor height, the loss of bearing ointment is fast, has had a strong impact on life of generator.
Simultaneously, automobile-used high tension direct current generator, the form that generally adopts rectifier control device to separate with the generator body, promptly control device is external, and its shortcoming is exactly to have increased the space of installing, and has increased the connection device of generator and control device, has reduced reliability.
The utility model content
The purpose of this utility model is to provide a kind of rotor structure of brushless electric excitation generator simple in structure and the generator that adopts described rotor structure.This generator has better reliability and longer useful life.
Rotor structure of brushless electric excitation generator of the present utility model, comprise by the rotating shaft of Bearing Installation on the body end, be fixed on dish pawl and ring pawl in the rotating shaft, excitation component is with the dish pawl and encircle corresponding being fixed on the body of endless groove that claw type becomes, and provides the excitation power supply by external dc power supply.
The body that described excitation component is fixing comprises the end cap of body end, the housing at body middle part or the parts of support stator.
Generator of the present utility model, comprise body, housing by the body middle part, stator closely contacts the composition stator component, end cap by the body end, bearing is formed support component, rotor part is made up of rotating shaft and dish pawl and ring pawl fixed thereon, rotating shaft by bearing fixing on end cap, excitation component is with the dish pawl and encircle corresponding being fixed on the body of endless groove that claw type becomes, and provide the excitation power supply by external dc power supply, comprise that outside body an end cap is provided with the guard shield of bringing the air port into, leave the air channel between guard shield and the body, be provided with fan in the rotating shaft in guard shield, constitute the outer air channel of cooled.
Further technical scheme is: be provided with on the end cap in described guard shield and be used for the AC rectification of stator and the parts of pressure regulation.
Rotor structure of brushless electric excitation generator of the present utility model, excitation component are fixed on the body, isolate with rotor, do not rotate, and have improved the reliability of rotor; No rectifying installation and lead loop on the rotor do not produce heat simultaneously, and temperature of rotor is low; Excitation component provides the excitation power supply by external dc power supply, compare with present electric excitation type brushless generator and to have saved rectifying installation and cover stator and rotor, temperature of rotor is low, and is little to the influence of the bearing on the generator shaft, the bearing long service life has promptly increased life of generator; Rotor structure is simple, and convenient processing and assembling have reduced cost.
Adopt the generator of the utility model rotor structure, except having the advantage of bringing by rotor, also owing to adopt outer air channel cooled electric generator, rotor need not cool off, only need the cooled electric generator stator, make stator, rotor and isolated from atmosphere, the degree of protection height of generator.Rectification, voltage regulation part are installed in generator inside, and promptly installing space is saved on the surface of end cap (near fan), has reduced electrical connection arrangement, also can improve the reliability of generator.
Further specify the technical solution of the utility model below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the schematic diagram of the utility model rotor structure.
Fig. 2 is the schematic diagram of the utility model generator.
Fig. 3 is a magnetic flux schematic diagram of the present utility model.
Fig. 4 is the schematic diagram of the another kind of generator of the utility model.
Embodiment
Rotor structure of brushless electric excitation generator of the present utility model as shown in Figure 1, comprise rotating shaft 1, rotating shaft 1 is installed on the end cap 3 of body by bearing 2, be fixed with dish pawl 4 and ring pawl 7 in the rotating shaft 1, the endless groove that excitation component 8 and dish pawl 4 and ring pawl 7 form is corresponding to be fixed on the end cap 3 of body, and provides the excitation power supply by external dc power supply.Rotor structure mid-game pawl 4 and ring pawl 7 are positioned at the stator 6 that is fixed on the body central enclosure 5.
Excitation component also can be fixed on the parts of the housing at body middle part or support stator (drawing among the figure).
Generator of the present utility model is seen Fig. 2, Fig. 3, comprise the body of forming by end cap 3 and housing 5, housing 5 and fix stator 6 composition stator components it on, stator 6 is provided with lead 10, end cap 3 and bearing 2 are formed support component, rotor part is made up of rotating shaft 1 and dish pawl 4 and ring pawl 7 fixed thereon, rotating shaft 1 is fixed on the end cap 3 by bearing 2, excitation component 8 is with dish pawl 4 and encircle corresponding being fixed on the end cap 3 of endless groove that pawl 7 forms, and provide the excitation power supply by external dc power supply, comprise that outside body an end cap 3 is provided with the guard shield 16 of bringing air port 14 into, leave air channel 17 between guard shield 16 and the housing 5, be provided with fan 15 in the rotating shaft 1 in guard shield 16, constitute the outer air channel of cooled.
Another kind of generator of the present utility model is seen Fig. 4, and it is to be provided with rectifier bridge 18 and voltage regulator 19 on the end cap in guard shield 16 3 on the basis of generator shown in Figure 2.
Principle of the present utility model: as shown in Figure 1, rotor adopts electric excitation structure, excitation component 8 is fixed on the end cap 3, behind excitation component 8 perfectly straight stream power supplys, coil the magnetic flux of inducting in the pawl 4, magnetic circuit is as shown in phantom in Figure 3: the air gap 9 of the air gap 12 of air gap 11, stator 6, stator and the ring pawl of magnetic flux through between dish pawl 4, dish pawl and stator, ring pawl 7, ring pawl and air gap 13, excitation component 8, excitation component and the dish pawl of excitation component, and get back to and coil magnetic loop of pawl 4 formation.Excitation component 8 is isolated with rotor, has improved the reliability of rotor; No rectifying installation and lead loop on the rotor do not produce heat simultaneously, and temperature of rotor is low.During the cooled electric generator of air channel, rotor need not cool off so outside.Cooling procedure is shown in the arrow among Fig. 2, fan 15 high speed rotating, guard shield 16 outer cold airs are sucked from air inlet 14, advertise then to rear end cap surface cool control section, (stator closely contacts with housing to cool off housings through housing 5 and the air channel 17 between the guard shield 16 again, heat in the stator conducts to housing), flow to atmosphere at last.Stator 6, rotor and isolated from atmosphere have improved the degree of protection of generator.The alternating current that generator unit stator is inducted is exported the constant voltage direct current after rectifier bridge 18 rectifications, voltage regulator 19 pressure regulation.
Claims (4)
1, a kind of rotor structure of brushless electric excitation generator, comprise by the rotating shaft of Bearing Installation on the body end, be fixed on dish pawl and ring pawl in the rotating shaft, it is characterized in that corresponding being fixed on the body of endless groove that excitation component and dish pawl become with the ring claw type, and provide the excitation power supply by external dc power supply.
2, rotor structure of brushless electric excitation generator according to claim 1 is characterized in that the body that described excitation component is fixing, comprises the end cap of body end, the housing at body middle part or the parts of support stator.
3, a kind of generator, comprise body, form stator component by the housing at body middle part and the stator that is fixed on the housing, end cap by the body end, bearing is formed support component, rotor part is made up of rotating shaft and dish pawl and ring pawl fixed thereon, rotating shaft by bearing fixing on end cap, excitation component is with the dish pawl and encircle corresponding being fixed on the body of endless groove that claw type becomes, and provide the excitation power supply by external dc power supply, comprise that outside body an end cap is provided with the guard shield of bringing the air port into, leave the air channel between guard shield and the body, be provided with fan in the rotating shaft in guard shield.
4, generator according to claim 3 is characterized in that being provided with on the end cap in described guard shield and is used for the AC rectification of stator and the parts of pressure regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200531481U CN201263114Y (en) | 2008-05-14 | 2008-05-14 | Rotor structure of brushless electric excitation generator and generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200531481U CN201263114Y (en) | 2008-05-14 | 2008-05-14 | Rotor structure of brushless electric excitation generator and generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201263114Y true CN201263114Y (en) | 2009-06-24 |
Family
ID=40809589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200531481U Expired - Lifetime CN201263114Y (en) | 2008-05-14 | 2008-05-14 | Rotor structure of brushless electric excitation generator and generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201263114Y (en) |
-
2008
- 2008-05-14 CN CNU2008200531481U patent/CN201263114Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rotor structure of brushless electric excitation generator and generator Effective date of registration: 20110720 Granted publication date: 20090624 Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Changsha branch Pledgor: Hunan Vaqoung Electric Co. Ltd. Registration number: 2011990000240 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150626 Granted publication date: 20090624 Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Changsha branch Pledgor: Hunan Vaqoung Electric Co. Ltd. Registration number: 2011990000240 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090624 |
|
| CX01 | Expiry of patent term |