CN101345454A - Rotor structure of brushless electric excitation generator and generator - Google Patents
Rotor structure of brushless electric excitation generator and generator Download PDFInfo
- Publication number
- CN101345454A CN101345454A CNA2008100312987A CN200810031298A CN101345454A CN 101345454 A CN101345454 A CN 101345454A CN A2008100312987 A CNA2008100312987 A CN A2008100312987A CN 200810031298 A CN200810031298 A CN 200810031298A CN 101345454 A CN101345454 A CN 101345454A
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- generator
- excitation
- pawl
- end cap
- stator
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Abstract
The invention discloses a rotor structure of a brushless electric excitation motor and the motor comprising a bearing, a shaft arranged on the motor body end, a pan claw and a ring claw fixed on the shaft, an excitation assembly corresponding to a ring slot formed by the pan claw and the ring claw fixed on the motor body with an excitation power provided by an external dc power supply. The generator using the rotor structure has advantages of reliable running and long service time, especially the structure is simple, the processing and assembling are convenient, which reduces the cost.
Description
Technical field
The invention belongs to generator, be 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.
Summary of the invention
The object of the present invention 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 invention, 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 invention, 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 invention, 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 rotor structure of the present invention, except having the advantage of being brought by rotor, also owing to adopt outer air channel cooled electric generator, rotor need not cool off, and only needs the cooled electric generator stator, makes 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 technical scheme of the present invention below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the schematic diagram of rotor structure of the present invention.
Fig. 2 is the schematic diagram of generator of the present invention.
Fig. 3 is a magnetic flux schematic diagram of the present invention.
Fig. 4 is the schematic diagram of the another kind of generator of the present invention.
Embodiment
Rotor structure of brushless electric excitation generator of the present invention 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 invention 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 invention 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 invention: 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 |
|---|---|---|---|
| CNA2008100312987A CN101345454A (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 |
|---|---|---|---|
| CNA2008100312987A CN101345454A (en) | 2008-05-14 | 2008-05-14 | Rotor structure of brushless electric excitation generator and generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101345454A true CN101345454A (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100312987A Pending CN101345454A (en) | 2008-05-14 | 2008-05-14 | Rotor structure of brushless electric excitation generator and generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN101345454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066710A (en) * | 2011-10-19 | 2013-04-24 | 罗伯特·博世有限公司 | Motor and motor application |
-
2008
- 2008-05-14 CN CNA2008100312987A patent/CN101345454A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066710A (en) * | 2011-10-19 | 2013-04-24 | 罗伯特·博世有限公司 | Motor and motor application |
| CN103066710B (en) * | 2011-10-19 | 2017-03-01 | 罗伯特·博世有限公司 | Motor and the application of motor |
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090114 |