CN201699499U - Hybrid excitation brushless generator - Google Patents
Hybrid excitation brushless generator Download PDFInfo
- Publication number
- CN201699499U CN201699499U CN2010202088601U CN201020208860U CN201699499U CN 201699499 U CN201699499 U CN 201699499U CN 2010202088601 U CN2010202088601 U CN 2010202088601U CN 201020208860 U CN201020208860 U CN 201020208860U CN 201699499 U CN201699499 U CN 201699499U
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- utmost point
- generator
- permanent magnet
- excitation
- fixed
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- Synchronous Machinery (AREA)
Abstract
The utility model discloses a hybrid excitation brushless generator, which comprises a left end cover and a right end cover. A stator assembly and a rotor assembly are respectively packaged in the left end cover and the right end cover. The rotor assembly includes a claw-pole rotor, and a permanent magnet is fixed on the claw-pole rotor. An excitation carrier is fixed on the right end cover, and an excitation coil is fixed on the excitation carrier and positioned in the claw-pole rotor. The generator forms a hybrid excitation structure of the permanent magnet and the excitation coil, namely magnetic field axial superposition of excitation magnetic field and permanent magnetic field. Therefore, the generator can utilize the permanent magnetic field to compensate problems caused by large interpolar leakage and the like, namely increases magnetic flux density of the generator while increasing main magnetic flux of the generator, thereby increasing magnetic energy product of the generator, and leading the generator to obtain higher air-gap magnetic density so as to obtain higher power density. The air-gap magnetic flux can be optionally adjusted by controlling current of the excitation coil, thereby realizing stable voltage output.
Description
Technical field
The utility model relates to a kind of generator, relates in particular to a kind of not only with permanent magnet but also use the automobile-used brushless generator of magnet exciting coil.
Background technology
The brushless generator of traditional structure is not owing to have brush and slip ring, and is simple in structure, reliable operation, and failure rate is low, and no-spark produces during work, and radio interference is little, and can work in the environment of moist and many dirt, thereby has obtained application widely.But owing to increased by two additional air gaps in the brushless generator magnetic circuit system, so under the identical situation of power output, must increase the exciting power of excitation winding, and the leakage flux of pawl interpolar is very big, magnetic leakage factor can be up to 1.5, particularly between utmost point side and the leakage field between utmost point rear side account for major part, thereby reduced the power density and the efficient of generator.
Volume is little though permanent magnet generator has, light weight, simple in structure, the low speed charging performance is good, specific power is big, the advantage of no excitation loss, but because rare-earth permanent magnet has higher residual flux density and coercive force, the magnetic field that produces is constant unadjustable, when load or rotation speed change scope are big, it is stable to be difficult to sustaining voltage, especially when running up, voltage is out of control easily, must adopt the thyristor installation pressure regulation.So permanent magnet and Regulation Control cost improve, and exist permanent magnet easily to demagnetize, and voltage is wayward during high speed, shortcomings such as repair rate height.Therefore the not cost saving so integrate energy-conservation often can not be widely used in the market.
The utility model content
Technical problem to be solved in the utility model provides a kind of composite excitation brushless generator that can export controlled burning voltage
For solving the problems of the technologies described above, the technical solution of the utility model is: the composite excitation brushless generator, comprise left end cap and right end cap, and be packaged with field frame assembly and rotor assembly in the described left and right end cap, described rotor assembly comprises claw-pole rotor, is fixed with permanent magnet on the described claw-pole rotor; Be fixed with the excitation carriage on the described right end cap, be fixed with magnet exciting coil on the described excitation carriage, described magnet exciting coil is arranged in described claw-pole rotor.
As a kind of improvement, described claw-pole rotor comprises left utmost point pawl and right utmost point pawl, and described left utmost point pawl and right utmost point pawl are connected with a joggle.
As further improvement, described left utmost point pawl and right utmost point pawl comprise utmost point pawl respectively and the ring flange of described utmost point pawl are installed that described permanent magnet is fixed on the sidewall of described left utmost point pawl ring flange.
As further improvement, described permanent magnet is set at least three, and is evenly distributed on the described ring flange.
As further improvement, described permanent magnet is fixed on the angular bisector of adjacent two the described utmost point pawls on the described ring flange.
As further improvement, the hard-wired polar orientation unanimity of described permanent magnet, and the magnetic field that described permanent magnet produces is consistent with the polarity of the magnetic field that magnet exciting coil produces.
As further improvement, described permanent magnet is a rectangular structure.
Owing to adopted technique scheme, the composite excitation brushless generator comprises left end cap and right end cap, is packaged with field frame assembly and rotor assembly in the described left and right end cap, and described rotor assembly comprises claw-pole rotor, is fixed with permanent magnet on the described claw-pole rotor; Be fixed with the excitation carriage on the described right end cap, be fixed with magnet exciting coil on the described excitation carriage, described magnet exciting coil is arranged in described claw-pole rotor; The beneficial effects of the utility model are: permanent magnet axially can form permanent magnetic field, thereby forms the composite excitation structure of permanent magnet and magnet exciting coil.In other words, excitation field and permanent magnetic field carry out magnetic field axis to stack, thereby can compensate the problem that the big grade of interelectrode magnetic leakage is brought with permanent magnetic field, both improved the magnetic flux density of generator, improved the main flux of generator again, thereby improve the magnetic energy product of generator, make generator can obtain higher air gap flux density, thereby can obtain higher power density.By the size of control magnet exciting coil electric current, air-gap flux can be able to free adjustment, thereby realizes the voltage that output is stable.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the view after the utility model embodiment permanent magnet and magnet exciting coil are installed;
Fig. 3 is the structural representation of the utility model embodiment left side utmost point pawl;
Fig. 4 is the vertical view after the utility model embodiment left side utmost point pawl and the engagement of right utmost point pawl.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are common, the composite excitation brushless generator, comprise left end cap 1 and right end cap 2, be packaged with field frame assembly 3 and rotor assembly in described left end cap 1 and the right end cap 2, described field frame assembly 3 comprises stator core and stator winding, this part structure is the known content of the those of ordinary skill of described technical field, here repeats no more; Described rotor assembly comprises claw-pole rotor, be fixed with permanent magnet 4 on the described claw-pole rotor, be fixed with excitation carriage 5 on the right end cap 2 in the described casing 1, described excitation carriage 5 materials are mild steel, be wound with magnet exciting coil 6 on the described excitation carriage 5, excitation is fixed on the right end cap 2 by excitation carriage 5 around 6 groups, and is in the described claw-pole rotor, and described claw-pole rotor material is mild steel.
Described claw-pole rotor comprises left utmost point pawl 7 and right utmost point pawl 8, described left utmost point pawl 7 is connected with a joggle with right utmost point pawl 8, left side utmost point pawl 8 is welded on the right pawl utmost point 7 by copper or non-magnet_conductible material, left side utmost point pawl 7 comprises utmost point pawl 71 and ring flange 72, and described permanent magnet 4 is fixed on the sidewall of ring flange 72 of described left utmost point pawl 7; Described permanent magnet 4 is set to be set at least three, and be evenly distributed on the described ring flange 72, described permanent magnet 4 is fixed on the angular bisector of adjacent two the described utmost point pawls 71 on the described ring flange 72, described permanent magnet 4 is a rectangular structure, described permanent magnet 4 hard-wired polar orientation unanimities, and the magnetic field that described permanent magnet 4 produces is consistent with the polarity of the magnetic field that magnet exciting coil 6 produces, the permanent magnetic field that permanent magnet 4 is produced can superpose with the excitation field that magnet exciting coil 6 produces, thereby can compensate the problem that the big grade of interelectrode magnetic leakage is brought with permanent magnetic field, both improved the magnetic flux density of generator, improved the main flux of generator again, thereby improve the magnetic energy product of generator, make generator can obtain higher air gap flux density, thereby can obtain higher power density.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
All are from design of the present utility model, and the reconfiguration of having done without creative work all drops within the protection range of the present utility model.
Claims (7)
1. the composite excitation brushless generator comprises left end cap and right end cap, is packaged with field frame assembly and rotor assembly in the described left and right end cap, and it is characterized in that: described rotor assembly comprises claw-pole rotor, is fixed with permanent magnet on the described claw-pole rotor; Be fixed with the excitation carriage on the described right end cap, be fixed with magnet exciting coil on the described excitation carriage, described magnet exciting coil is arranged in described claw-pole rotor.
2. composite excitation brushless generator as claimed in claim 1 is characterized in that: described claw-pole rotor comprises left utmost point pawl and right utmost point pawl, and described left utmost point pawl and right utmost point pawl are connected with a joggle.
3. composite excitation brushless generator as claimed in claim 2 is characterized in that: described left utmost point pawl and right utmost point pawl comprise utmost point pawl respectively and the ring flange of described utmost point pawl are installed that described permanent magnet is fixed on the sidewall of described left utmost point pawl ring flange.
4. composite excitation brushless generator as claimed in claim 3 is characterized in that: described permanent magnet is set at least three, and is evenly distributed on the described ring flange.
5. composite excitation brushless generator as claimed in claim 4 is characterized in that: described permanent magnet is fixed on the angular bisector of adjacent two the described utmost point pawls on the described ring flange.
6. composite excitation brushless generator as claimed in claim 5 is characterized in that: the hard-wired polar orientation unanimity of described permanent magnet, and the magnetic field that described permanent magnet produces is consistent with the polarity of the magnetic field that magnet exciting coil produces.
7. as the described composite excitation brushless generator of the arbitrary claim of claim 1 to 6, it is characterized in that: described permanent magnet is a rectangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202088601U CN201699499U (en) | 2010-05-25 | 2010-05-25 | Hybrid excitation brushless generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202088601U CN201699499U (en) | 2010-05-25 | 2010-05-25 | Hybrid excitation brushless generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699499U true CN201699499U (en) | 2011-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202088601U Expired - Fee Related CN201699499U (en) | 2010-05-25 | 2010-05-25 | Hybrid excitation brushless generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201699499U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426445A (en) * | 2013-08-22 | 2015-03-18 | 丹佛斯动力解决方案有限公司 | System For Hydraulically Powered Electric Generator |
| CN104659994A (en) * | 2015-02-09 | 2015-05-27 | 苏州力久新能源科技有限公司 | Claw-type hybrid excitation motor |
| CN106471730A (en) * | 2014-07-01 | 2017-03-01 | 西门子公司 | With exciting current, synchronous motor is powered |
| CN110912301A (en) * | 2019-12-11 | 2020-03-24 | 山东大学 | Parallel hybrid excitation brushless claw-pole motor |
-
2010
- 2010-05-25 CN CN2010202088601U patent/CN201699499U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426445A (en) * | 2013-08-22 | 2015-03-18 | 丹佛斯动力解决方案有限公司 | System For Hydraulically Powered Electric Generator |
| CN106471730A (en) * | 2014-07-01 | 2017-03-01 | 西门子公司 | With exciting current, synchronous motor is powered |
| US10320316B2 (en) | 2014-07-01 | 2019-06-11 | Siemens Aktiengesellschaft | Supplying a synchronous machine with an excitation current |
| CN106471730B (en) * | 2014-07-01 | 2019-08-06 | 西门子公司 | It is powered with exciting current to synchronous motor |
| CN104659994A (en) * | 2015-02-09 | 2015-05-27 | 苏州力久新能源科技有限公司 | Claw-type hybrid excitation motor |
| CN104659994B (en) * | 2015-02-09 | 2017-10-03 | 澳特卡新能源科技（上海）有限公司 | A kind of pole claw mixed excitation electric machine |
| CN110912301A (en) * | 2019-12-11 | 2020-03-24 | 山东大学 | Parallel hybrid excitation brushless claw-pole motor |
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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: 20110105 Termination date: 20130525 |