CN2445499Y - Enclosed permanent-magnetic power frequency alternator - Google Patents
Enclosed permanent-magnetic power frequency alternator Download PDFInfo
- Publication number
- CN2445499Y CN2445499Y CN 00236987 CN00236987U CN2445499Y CN 2445499 Y CN2445499 Y CN 2445499Y CN 00236987 CN00236987 CN 00236987 CN 00236987 U CN00236987 U CN 00236987U CN 2445499 Y CN2445499 Y CN 2445499Y
- Authority
- CN
- China
- Prior art keywords
- rare earth
- magnetic steel
- end cap
- earth magnetic
- casing
- 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.)
- Expired - Fee Related
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Cooling System (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model discloses a closed-type magneto alternator structure. Both ends of a casing of the utility model are provided with end caps. Main shafts are fixed on the end caps. A stator is fixed in the casing. A stator winding is fixed in a stator core. A rare earth magnetic steel and a magnetic yoke are fixed on the main shafts. The utility model is characterized in that from two to five sections of homopolarity magnetic steels are arrayed with gaps to form the rare earth magnetic steel. The magnetic steels are provided with blades. An outer main shaft of a back end cap is provided with a metallic blade. The temperature rise of the alternator is low. The utility model can work continuously and reliably.
Description
The utility model relates to a kind of permanent magnetism industrial frequency AC generator, relate in particular to a kind of can be when dust, smog, greasy dirt and field work be arranged such as the closed permanent magnetism industrial frequency AC generator that uses of occasions such as fishing boat, mine.
At present, general interior excitation and the outer excitation of adopting of medium and small generator, output contact is drawn by brush, and output voltage reaches power frequency behind frequency modulation and voltage modulation, cause the electric generator structure complexity, poor electrical performance, maintaining inconvenience.Chinese patent ZL93246090.9, the applying date is on December 8th, 1993, patent announcement CN2173477Y name is called the structure that " strong magnetic permanent magnetism power frequency double current generator " discloses a kind of permanent magnetism power frequency double current generator, there is end cap at the casing two ends of this generator, the end cap bearing connects main shaft, the inwall fixed stator of casing, stator core internal fixation coil, in the uniform groove of stator core according to the difference of the extraction voltage coil turn of arranging, on the main shaft by screw permanent magnetic steel piece and yoke, constitute rotor, main shaft one end has fan blade, the rotor of motor is drawn output contact, and permanent magnetic steel piece fixing in the rotor is a rare earth magnetic steel, generally adopts the NdFeB rear-earth magnet steel.This kind electric generator casing adopts when closed, and temperature rise is bigger, has influenced the continuous reliably working of generator.
The purpose of this utility model provides the lower closed permanent magnetism industrial frequency AC generator of a kind of temperature rise.
The utility model is achieved in that a kind of closed permanent magnetism industrial frequency AC generator, it is by casing, main shaft, stator core, stator winding, rare earth magnetic steel, yoke, front and rear cover is formed, there is front and rear cover at the casing two ends, main shaft is fixed between front and rear cover by the end cap bearing, casing inner wall fixed stator iron core, stator core internal fixation stator winding, rare earth magnetic steel and yoke by screw on main shaft, rare earth magnetic steel and yoke form rotor, motor stator is drawn AC power frequency voltage, be characterized in: rare earth magnetic steel is that the gapped arrangement of 2-5 section same polarity magnet steel forms, fan blade is equipped with at the rare earth magnetic steel two ends, the rear end cap main shaft is equipped with the metal external wind wheel, and fan housing is fixed on outside the rear end cap.
Above-mentioned closed permanent magnetism industrial frequency AC generator, its front end is stamped fin, and casing is equipped with fin outward.
Above-mentioned closed permanent magnetism industrial frequency AC generator, its front end housing intermediate bearing front end is equipped with little end cap, and small end covers and has oil filler point, and rear end cap has oil filler point.
Adopt the closed permanent magnetism industrial frequency AC generator of the utility model structure, because rare earth magnetic steel is that the gapped arrangement of 2-5 section same polarity magnet steel forms, fan blade is equipped with at two ends, main shaft is equipped with the metal fan blade outward, radiating effect is better, helps reducing temperature rise, guarantees the continuous reliably working of generator.Front end housing, casing have fin outward, more help heat radiation.Front and rear cover has oil filler point, makes things convenient for generator maintenance and maintenance.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the utility model structural representation.
The utility model structure is as follows, closed permanent magnetism industrial frequency AC generator, it is by casing 6, main shaft 1, stator core 8, stator winding 11, rare earth magnetic steel 10, yoke 17, front and rear cover 5,13 form, there is front and rear cover at the casing two ends, main shaft is by end cap bearing 4,18 are fixed between front and rear cover, casing inner wall fixed stator iron core 8, stator core internal fixation stator winding 11, rare earth magnetic steel 10 and yoke 17 are fixed on the main shaft by screw 9, rare earth magnetic steel and yoke form rotor, rare earth magnetic steel 10 forms for the gapped arrangement of 2-5 section same polarity magnet steel, fan blade 12 is equipped with at the rare earth magnetic steel two ends, the outer main shaft of rear end cap is equipped with metal external wind wheel 15, and fan housing 14 is fixed on outside the rear end cap.
As shown in Figure 1, its front end housing 5 has fin 3, and casing is equipped with fin 7 outward, and front end housing intermediate bearing front end is equipped with little end cap, and small end covers and has oil filler point 2, and rear end cap has oil filler point 16.This oil filler point convenient for maintaining and maintenance.
The stator of motor is drawn 220V, 380V, 50HZ AC power frequency voltage.
The hop count of rotor same polarity rare earth magnetic steel is decided according to capacity motor.
This generator has the function of better heat radiation, and temperature rise reduces.Its principle is as follows: this generator mainly adopts the ventilation cooling structure of outside self cool, when machine operation, rotor fan blade 12 is the motor internal air agitation, circulation blows to the end of stator winding 11 and the gap location of rare earth magnetic steel 10, take away the part heat of magnet steel, pass on support and the end cap through the mobile of inner air, then through support and fin and two end cap, air distribute heat towards periphery.The rotor external wind wheel is become by metallic material of aluminum or casting in bronze, it both can absorb by the next heat of main shaft transmission, fresh air can be sucked through the fan housing guiding again and blow to the support surface, along the groove between the support fin, blow to the other end from support one end, the motor heat is taken away.Thereby this generator temperature rise reduction, can work reliably continuously.
Claims (3)
1, a kind of closed permanent magnetism industrial frequency AC generator, it is by casing, main shaft, stator core, stator winding, rare earth magnetic steel, yoke, front and rear cover is formed, there is front and rear cover at the casing two ends, main shaft is fixed between front and rear cover by the end cap bearing, casing inner wall fixed stator iron core, stator core internal fixation stator winding, rare earth magnetic steel and yoke by screw on main shaft, rare earth magnetic steel and yoke form rotor, motor stator is drawn AC power frequency voltage, it is characterized in that: rare earth magnetic steel is that the gapped arrangement of 2-5 section same polarity magnet steel forms, and fan blade is equipped with at the rare earth magnetic steel two ends, the outer main shaft of rear end cap is equipped with the metal external wind wheel, and fan housing is fixed on outside the rear end cap.
2, closed permanent magnetism industrial frequency AC generator according to claim 1, it is characterized in that: described front end is stamped fin, and casing is equipped with fin outward.
3, closed permanent magnetism industrial frequency AC generator according to claim 1 and 2, it is characterized in that: described front end housing intermediate bearing front end is equipped with little end cap, and small end covers and has oil filler point, and described rear end cap has oil filler point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00236987 CN2445499Y (en) | 2000-06-06 | 2000-06-06 | Enclosed permanent-magnetic power frequency alternator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00236987 CN2445499Y (en) | 2000-06-06 | 2000-06-06 | Enclosed permanent-magnetic power frequency alternator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2445499Y true CN2445499Y (en) | 2001-08-29 |
Family
ID=33598395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00236987 Expired - Fee Related CN2445499Y (en) | 2000-06-06 | 2000-06-06 | Enclosed permanent-magnetic power frequency alternator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2445499Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924408A (en) * | 2010-09-09 | 2010-12-22 | 天津市百利溢通电泵有限公司 | Rotary magnetic steel oil-filled type subducted permanent magnet synchronous motor rotor |
| CN105978210A (en) * | 2016-08-05 | 2016-09-28 | 杨四连 | Rare-earth permanent magnet synchronous generator for refrigerator car |
| CN106849503A (en) * | 2017-04-06 | 2017-06-13 | 宁德时代电机科技有限公司 | A kind of permanent-magnetic outer rotor motor of the built-in fan blade of the high-power nodal wood type of small volume |
-
2000
- 2000-06-06 CN CN 00236987 patent/CN2445499Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924408A (en) * | 2010-09-09 | 2010-12-22 | 天津市百利溢通电泵有限公司 | Rotary magnetic steel oil-filled type subducted permanent magnet synchronous motor rotor |
| CN105978210A (en) * | 2016-08-05 | 2016-09-28 | 杨四连 | Rare-earth permanent magnet synchronous generator for refrigerator car |
| CN106849503A (en) * | 2017-04-06 | 2017-06-13 | 宁德时代电机科技有限公司 | A kind of permanent-magnetic outer rotor motor of the built-in fan blade of the high-power nodal wood type of small volume |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |