CN102738934A - External-rotor intermediate-frequency permanent magnet generator device - Google Patents
External-rotor intermediate-frequency permanent magnet generator device Download PDFInfo
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- CN102738934A CN102738934A CN201210235482XA CN201210235482A CN102738934A CN 102738934 A CN102738934 A CN 102738934A CN 201210235482X A CN201210235482X A CN 201210235482XA CN 201210235482 A CN201210235482 A CN 201210235482A CN 102738934 A CN102738934 A CN 102738934A
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Abstract
An external-rotor intermediate-frequency permanent magnet generator device comprises a power interface fixing disc, a power shaft arranged on the power interface fixing disc, an internal stator connected with the power interface fixing disc, an annular external rotor connected with the power shaft and having a magnetic steel, and a protection cover connected with the internal stator and provided with an air inlet. The external rotor of the intermediate-frequency permanent magnet generator device is arranged outside the internal stator; an iron core lamination of the stator is designed to a coil slot shape and is distributed on the external circumference; the winding form is designed to a centralized winding form; and a stator winding coil is wound on the teeth individually in such a manner that one tooth corresponds to one independent coil and both sides of each coil have one pole respectively so as to form a fractional-slot winding. The stator iron core can be conveniently fixed on a stator reinforcement rib because the coil has a short and small end; the rotor is a multi-polar magnetic steel rotor; and the stator and the stator iron core are shorter in comparison with the generator of the same capacity, so that generator can be designed to a flat structure, which can have no rear bearing and of which the front end can be directly connected with an interface of a power oil machine.
Description
Technical field
The present invention relates to the charging generator field of the uninterrupted power supply of communication station, more particularly be meant a kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus.
Background technology
Along with the high speed development of industrial and agricultural production and the demand that improves day by day electric power of living standards of the people increase sharply, particularly the increasing demand of the uninterrupted power supply of communication station increases, and imbalance between supply and demand is very outstanding.
The uninterrupted power supply of communication station generally is made up of dc-battery (lithium battery or other dc-battery that can use for a long time), diesel oil or gasoline engine generator group, AC-DC charging system at present.And diesel oil or the existing small product size of gasoline engine generator group more greatly, heavier, efficient is not high.Therefore a kind of generating efficiency wants high, and the demand of the generator that generating equipment is in light weight, volume is little is urgent.
Summary of the invention
A kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus provided by the invention, its purpose be to overcome use in the existing communication station diesel oil or gasoline engine generator group volume more greatly, heavier, the shortcoming that efficient is not high.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is:
A kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus, the external rotor that comprises power interface fixed disk, is located at the line shaft on the power interface fixed disk, the internal stator, the annular that is connected with line shaft that are connected with power interface fixed disk and has magnet steel reaches the protective cover that is connected with air inlet with internal stator.
Said protective cover is provided with screen pack outward.
Said internal stator comprises internal stator iron core and is around in the stator winding coil on the equidistant slots tooth of internal stator iron core; Said internal stator iron core is provided with the coil flute profile and equidistantly lays along excircle; The equidistant slots tooth of internal stator iron core forms pilot trench decided at the higher level but not officially announced each other; Said stator winding coil forms a coil independently separately on the equidistant slots tooth of each internal stator iron core, and two straight lines of each coil respectively are a utmost point, form fractional slot winding.
Said pilot trench number decided at the higher level but not officially announced is 48 grooves, and said external rotor is multipole magnet steel formula rotor, and described magnet steel number is 32.
Said internal stator is connected with the power interface fixed disk of power through the internal stator fixed disk, and said internal stator iron core is connected with the internal stator fixed disk through four equally distributed width of cloth muscle that weld on the internal stator fixed disk.
Said internal stator iron core is fixed on the width of cloth muscle through trip bolt.
Said protective cover is connected with the internal stator fixed disk through the protective cover fixed support.
Said external rotor comprises magnet steel and the external rotor yoke that is connected with magnet steel, is connected with fan on the said external rotor yoke, and this fan comprises fan chassis that is connected with the external rotor yoke and the fans that is connected with the fan chassis.
Said external rotor is fixed on the line shaft through hold-down nut.
Can know through the above-mentioned description of this invention, compare, the invention has the advantages that with prior art:
1, because the intermediate frequency permanent magnetism of no bearing of the present invention concentrates the winding type outer rotor generator to adopt the internal stator structure, and stator iron-core lamination is designed to coil flute profile circle distribution outside, winding configuration is designed to concentrate winding configuration; On tooth, a tooth is an independently coil to the stator winding coil separately, and two straight lines of each coil respectively are a utmost point; Form fractional slot winding, the structure of coiling not only can make end winding the shortest like this, also is convenient to realize the automation coiling; No longer use the manual wire embedding; Save a large amount of manpowers, operating efficiency improves, and has significantly reduced rule man-hour.
2, because stator coil end is very little, very short, can practice thrift the electromagnetism enamelled wire greatly, practice thrift a large amount of copper materials, motor cost reduces, and the cost performance of generator improves.
3 and the D.C. resistance of coil littler, the copper loss of motor is littler, electric efficiency improves, the temperature rise of motor is low, the motor reliability of operation improves.
4, because stator and stator core are short, can be fixed on easily on the stator width of cloth muscle, so generator can be designed to flat structure, can not have rear bearing, and front end can join directly on the interface of power oil machine.Can be designed to not have bearing arrangement.
5, internal stator iron core through with stator discs that the power interface connects on four equally distributed width of cloth muscle of welding combine closely guarantee with power concentric.Be that stator support is made up of four equally distributed width of cloth muscle of welding on the stator discs.The generator unit stator assembly structure here is simply novel, is more conducive to the cooling of ventilating, and wind path is smooth.Stator core is fixed on the width of cloth muscle through trip bolt, and cooling air will blow Buddhist stator front end winding overhang through width of cloth muscle, and the hot blast that will be flow through stator end by the fan blade outside the external rotor cylinder blows out, and is as shown in Figure 1.The cooling air that is got into by air inlet will directly flow through stator rear end winding overhang.The heat of stator core also will be taken away through width of cloth muscle and the cooling air of flowing through thus, reach the effect of heat radiation.
6, fan design becomes fans and fan chassis directly to be welded on the yoke outer ring; Fan structure is simple, because of on the yoke outer ring, though the air quantity that the little fan of fans produces is big; To produce high negative at the internal stator width of cloth muscle place during fan rotation; In on wind path, form higher wind, radiation effect of motor is good, and the temperature rise of motor is lower.
Description of drawings
Fig. 1 is the structural representation of invention;
Fig. 2 is the internal stator structural representation;
Fig. 3 is the structural representation of A direction in Fig. 2;
Fig. 4 is the structural representation behind the removal internal stator iron core;
Fig. 5 is the structural representation of B direction in Fig. 4;
Fig. 6 is the outer-rotor structure sketch map;
Fig. 7 is the structural representation of C direction in Fig. 6.
Embodiment
Embodiment of the present invention is described with reference to the accompanying drawings.
With reference to figure 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7; A kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus, the external rotor 4 that comprises power interface fixed disk 1, is located at the line shaft 2 on the power interface fixed disk 1, the internal stator 3 that is connected with power interface fixed disk 1, the annular that is connected with line shaft 2 and has magnet steel 41 reaches the protective cover 5 that is connected with air inlet 51 with internal stator 3.External rotor 4 is fixed on the line shaft 2 through hold-down nut 43.The protective cover 5 outer screen packs 6 that are provided with.External rotor 4 comprises magnet steel 41 and the external rotor yoke 42 that is connected with magnet steel 41, is connected with fan 7 on the external rotor yoke 42, and this fan 7 comprises fan chassis that is connected with external rotor yoke 42 and the fans that is connected with the fan chassis.Above-mentioned intermediate frequency permanent magnet electric generating apparatus is simple in structure, and spare and accessory parts are few, is convenient to the quality management and control, is easy to produce in batches, can save a large amount of manpower and materials.
Internal stator 3 comprises internal stator iron core 31 and is around in the stator winding coil 32 on the internal stator iron core 31; Internal stator iron core 31 is provided with the coil flute profile and equidistantly lays along excircle; Internal stator iron core 31 forms pilot trench 33 decided at the higher level but not officially announced each other; Stator winding coil 32 forms a coil independently separately on each internal stator iron core 31, and two straight lines of each coil respectively are a utmost point, form fractional slot winding.
The groove number of internal stator 3 is 48 grooves, and said external rotor is multipole magnet steel formula rotor, and described magnet steel number is 32.Coil can conveniently be realized the mechanical automation coiling directly on the tooth of stator iron-core lamination, the winding mode of design can make winding overhang the shortest thus, and the copper loss of motor is minimum, and the efficient of generator improves.While has also guaranteed the minimum that the axial dimension of generator can be done, thereby realizes the purpose of no bearing, saves more multiple component, and is easy to assemble, is convenient to safeguard, the reliability raising of use.
Internal stator 3 is connected with power power interface fixed disk 1 through internal stator fixed disk 34; Said internal stator iron core 31 is connected with internal stator fixed disk 34 through four equally distributed width of cloth muscle 35 of welding on the internal stator fixed disk 34, owing to internal stator iron core 31 through weld on the internal stator fixed disk 34 four equally distributed width of cloth muscle 35 combine closely guarantee with power concentric.Be that stator support is made up of four equally distributed width of cloth muscle 35 of welding on the internal stator fixed disk 34.The generator unit stator assembly structure here is simply novel, is more conducive to the cooling of ventilating, and wind path is smooth.Internal stator iron core 31 is fixed on the width of cloth muscle 35 through trip bolt 311, and cooling air will blow Buddhist stator front end winding overhang through width of cloth muscle 35, and the hot blast that will be flow through stator end by the fan blade outside the external rotor cylinder blows out, and is as shown in Figure 1.The cooling air that is got into by air inlet will directly flow through stator rear end winding overhang.The heat of stator core also will be taken away through width of cloth muscle and the cooling air of flowing through thus, reach the effect of heat radiation.Protective cover 5 is connected with internal stator fixed disk 34 through protective cover fixed support 51.
This intermediate frequency permanent magnet electric generating apparatus is located at internal stator 3 outsides with external rotor 4; Stator iron-core lamination is designed to coil flute profile circle distribution outside; Winding configuration is designed to concentrate winding configuration, and on tooth, a tooth is an independently coil to the stator winding coil separately; Two limits of each coil respectively are a utmost point, form fractional slot winding.Because end winding is very little, very short; Internal stator iron core 31 can be fixed on the stator width of cloth muscle 35 easily; And external rotor 4 is multipole magnet steel formula rotor, and compares stator with the capacity generator and stator core is shorter, so generator can be designed to flat structure; Can not have rear bearing, and front end can join directly on the interface of power oil machine.A kind of intermediate frequency permanent magnetism that does not have bearing of briefly saying so is concentrated the winding type outer rotor generator.
Above-mentionedly be merely embodiment of the present invention, but design concept of the present invention is not limited thereto, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection range of the present invention.
Claims (9)
1. external-rotor-type intermediate frequency permanent magnet electric generating apparatus is characterized in that: the external rotor that comprises power interface fixed disk, is located at the line shaft on the power interface fixed disk, the internal stator, the annular that is connected with line shaft that are connected with power interface fixed disk and has magnet steel and be connected with the protective cover of air inlet with internal stator.
2. a kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus according to claim 1, it is characterized in that: said protective cover is provided with screen pack outward.
3. a kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus according to claim 1; It is characterized in that: said internal stator comprises internal stator iron core and is around in the stator winding coil on the equidistant slots tooth of internal stator iron core; Said internal stator iron core is provided with the coil flute profile and equidistantly lays along excircle; The equidistant slots tooth of internal stator iron core forms pilot trench decided at the higher level but not officially announced each other; Said stator winding coil forms a coil independently separately on the equidistant slots tooth of each internal stator iron core, and two straight lines of each coil respectively are a utmost point, form fractional slot winding.
4. a kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus according to claim 3 is characterized in that: said pilot trench number decided at the higher level but not officially announced is 48 grooves, and said external rotor is multipole magnet steel formula rotor, and described magnet steel number is 32.
5. a kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus according to claim 3; It is characterized in that: said internal stator is connected with the power interface fixed disk of power through the internal stator fixed disk, and said internal stator iron core is connected with the internal stator fixed disk through four equally distributed width of cloth muscle that weld on the internal stator fixed disk.
6. a kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus according to claim 5, it is characterized in that: said internal stator iron core is fixed on the width of cloth muscle through trip bolt.
7. a kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus according to claim 5 is characterized in that: said protective cover is connected with the internal stator fixed disk through the protective cover fixed support.
8. a kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus according to claim 1; It is characterized in that: said external rotor comprises magnet steel and the external rotor yoke that is connected with magnet steel; Be connected with fan on the said external rotor yoke, this fan comprises fan chassis that is connected with the external rotor yoke and the fans that is connected with the fan chassis.
9. a kind of external-rotor-type intermediate frequency permanent magnet electric generating apparatus according to claim 1, it is characterized in that: said external rotor is fixed on the line shaft through hold-down nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210235482XA CN102738934A (en) | 2012-07-09 | 2012-07-09 | External-rotor intermediate-frequency permanent magnet generator device |
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| CN201210235482XA CN102738934A (en) | 2012-07-09 | 2012-07-09 | External-rotor intermediate-frequency permanent magnet generator device |
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| CN102738934A true CN102738934A (en) | 2012-10-17 |
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| CN201210235482XA Pending CN102738934A (en) | 2012-07-09 | 2012-07-09 | External-rotor intermediate-frequency permanent magnet generator device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904411A (en) * | 2012-10-25 | 2013-01-30 | 泰豪科技股份有限公司 | Water-cooling intermediate-frequency permanent magnet generator |
| CN103311918A (en) * | 2013-05-23 | 2013-09-18 | 成都乾威科技有限公司 | Variable frequency oil engine-based direct current (DC) power generation system |
| CN103490558A (en) * | 2013-09-18 | 2014-01-01 | 江苏金风科技有限公司 | Cooling system of direct-driven wind turbine generator |
| CN105811724A (en) * | 2014-12-05 | 2016-07-27 | 财团法人工业技术研究院 | Outer rotor permanent magnet brushless motor |
| WO2018101859A3 (en) * | 2016-12-02 | 2018-08-30 | Александр Андреевич Панин | Electrical machine |
| CN112653308A (en) * | 2020-12-10 | 2021-04-13 | 江苏中奕和创智能科技有限公司 | Unequal-distance concentric lap winding permanent magnet motor |
| CN112688520A (en) * | 2020-12-31 | 2021-04-20 | 南通理工学院 | Novel generator and assembling method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19513134A1 (en) * | 1995-04-07 | 1996-10-10 | Aeg Kleinmotoren Gmbh | Electrical machine esp. permanent magnet generator for generating power in series with battery of electrically powered vehicle |
| CN101079565A (en) * | 2006-05-26 | 2007-11-28 | 梁昌勇 | An external rotor car permanent magnetic generator |
| CN202798213U (en) * | 2012-07-09 | 2013-03-13 | 福建亚南电机有限公司 | External-rotor intermediate-frequency permanent magnet generator device |
-
2012
- 2012-07-09 CN CN201210235482XA patent/CN102738934A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19513134A1 (en) * | 1995-04-07 | 1996-10-10 | Aeg Kleinmotoren Gmbh | Electrical machine esp. permanent magnet generator for generating power in series with battery of electrically powered vehicle |
| CN101079565A (en) * | 2006-05-26 | 2007-11-28 | 梁昌勇 | An external rotor car permanent magnetic generator |
| CN202798213U (en) * | 2012-07-09 | 2013-03-13 | 福建亚南电机有限公司 | External-rotor intermediate-frequency permanent magnet generator device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904411A (en) * | 2012-10-25 | 2013-01-30 | 泰豪科技股份有限公司 | Water-cooling intermediate-frequency permanent magnet generator |
| CN103311918A (en) * | 2013-05-23 | 2013-09-18 | 成都乾威科技有限公司 | Variable frequency oil engine-based direct current (DC) power generation system |
| CN103490558A (en) * | 2013-09-18 | 2014-01-01 | 江苏金风科技有限公司 | Cooling system of direct-driven wind turbine generator |
| CN103490558B (en) * | 2013-09-18 | 2016-07-06 | 江苏金风科技有限公司 | Direct wind-driven generator cooling system |
| CN105811724A (en) * | 2014-12-05 | 2016-07-27 | 财团法人工业技术研究院 | Outer rotor permanent magnet brushless motor |
| US9966804B2 (en) | 2014-12-05 | 2018-05-08 | Industrial Technology Research Institute | Outer-rotor permanent magnet brushless motor |
| CN105811724B (en) * | 2014-12-05 | 2018-08-24 | 财团法人工业技术研究院 | Outer rotor permanent magnet brushless motor |
| WO2018101859A3 (en) * | 2016-12-02 | 2018-08-30 | Александр Андреевич Панин | Electrical machine |
| CN112653308A (en) * | 2020-12-10 | 2021-04-13 | 江苏中奕和创智能科技有限公司 | Unequal-distance concentric lap winding permanent magnet motor |
| CN112688520A (en) * | 2020-12-31 | 2021-04-20 | 南通理工学院 | Novel generator and assembling method thereof |
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Application publication date: 20121017 |