CN2614398Y - High slip ratio energy-saving three-phase asynchronous motor - Google Patents
High slip ratio energy-saving three-phase asynchronous motor Download PDFInfo
- Publication number
- CN2614398Y CN2614398Y CN 03243902 CN03243902U CN2614398Y CN 2614398 Y CN2614398 Y CN 2614398Y CN 03243902 CN03243902 CN 03243902 CN 03243902 U CN03243902 U CN 03243902U CN 2614398 Y CN2614398 Y CN 2614398Y
- Authority
- CN
- China
- Prior art keywords
- winding
- rotor
- trapping
- saving
- asynchronous motor
- 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
Links
Images
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Windings For Motors And Generators (AREA)
Abstract
A tri-phase asynchronous motor is high in slip ratio and saves energy. A rotor iron core is opened with a deep groove, wherein two independent windings are arranged with conductor area of the internal winding larger than that of the external winding. After three respective coils of the two windings wiring as required by the tri-phase poles, the three output ends short circuit respectively. The motor has soft mechanical property, high slip ratio, big starting torque, low starting current and high efficiency, particularly suitable for power equipment requiring big starting torque and varying-speed property such as well pumping unit in the oil field. The motor is simple in structure, extremely convenient for the reconstruction of prior motors, improving productivity as well as saving energy.
Description
Affiliated technical field
The utility model relates to a kind of high-slip energy-saving three-phase asynchronous motor, and it belongs to power-jdriven gear.
Background technology
Threephase asynchronous is most widely used a kind of motor.For energy savings with guarantee to produce continuously, require motor be in operation higher efficient and power factor (PF) and long service life, functional, safe and reliable.At present, the rotor winding of known threephase asynchronous is divided into cage modle and two kinds of structures of winding-type.The cage modle winding is made up of the copper end ring at sliver in the insertion groove and two ends, and winding construction is simple, easily manufactured, reliable.The winding-type winding can insert additional resistance or other control device by collector ring and brush in rotor loop, so that improve excellent start performance or governor control characteristics.But above-mentioned two kinds of motor are not a kind of desirable power-equipments concerning the oil field just with oil pumper.Because torque was big when oil-field oil pumper required starting, and be equipped with the bigger motor of some plain edition Y series power, the starting back overwhelming majority is in operation under the low load with strong power state, and waste of electric energy is more serious.
Summary of the invention
Deficiencies such as big starting torque, starting back low load with strong power, waste electric energy will be arranged for the power-equipment that overcomes existing oil-field oil pumper, the utility model provides a kind of high-slip energy-saving three-phase asynchronous motor, this motor is not only simple in structure, easily manufactured, reliable, and starting torque big, have speed change characteristic, little a, saves energy of electric current.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of high-slip energy-saving three-phase asynchronous motor, it mainly comprises stator and rotor two parts.Stator is made up of stator core, stator winding, casing, bearing end cover and internal bearing cover; Rotor is made up of rotor winding, rotor core, two bearings and fan.Its special character is: above-mentioned rotor winding is made up of independently trap winding and last cover winding, and trap winding and last cover winding all are loaded in the dark type groove that is opened on the rotor core, and the winding of trapping is contained in the inboard of groove, on overlap the outside that winding is contained in groove.
Trap after the number of poles requirement wiring of three coils by three-phase of winding three output short circuits; After the number of poles requirement wiring of three coils by three-phase of last cover winding, three output short circuits.
The number of turn of winding of trapping is identical with the number of turn of last cover winding, and the wire glass of the winding of trapping should be greater than the wire glass of last cover winding.
The guiding theory of technique scheme is: on to overlap the wire glass of winding little, resistance is just big; The wire glass of winding of trapping is big, and resistance is just little.But because the groove on the rotor core belongs to shallow/deep groove type, leakage flux is many, so reactance is bigger.When motor starting, rotor does not rotate as yet, and the frequency of rotor winding is identical with mains frequency, and leakage flux is also with this frequency alternation.But the quantity of rotor two cover winding conducting wire each several part institute chain leakage fluxs is different, and the lead institute chain leakage flux of trapping is more than last cover lead, and the back-emf that lead produced of therefore trapping is big more, and promptly leakage reactance is big more, and electric current is just more little.Owing to squeeze the stream effect, increased the resistance that overlaps the lead and the lead of trapping on the rotor during starting, reduced rotor slot leakage reactance, this has just increased starting torque, has limited starting current.After starting, the rotor wire power frequency is very low, on overlap lead and the variation of lead leakage reactance of trapping little, substantially do not squeeze the stream effect, the cover winding conducting wire of going up of rotor diminishes automatically with the winding conducting wire resistance of trapping, and two cover winding currents are also in a basic balance, reach normal operation.
The beneficial effects of the utility model are: because the rotor of this threephase asynchronous belongs to shallow/deep groove type, independently two cover windings are housed in the rotor, make it have softer mechanical property, revolutional slip is higher, be 6～7%, starting torque is bigger 2～3 times than common electric machine, and starting current descends more than 20% than common electric machine, and efficient is higher by 2～3% than common electric machine.This electric motor structure compactness, convenient for production, reliable, long service life.Be particularly suitable for making the power-equipment that oil-field oil pumper requirement starting torque is big and have the speed change characteristic, can improve oil production, saves energy is more than 20%.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a kind of structure chart of high-slip energy-saving three-phase asynchronous motor.
Fig. 2 is the rotor schematic diagram.
Fig. 3 is a rotor winding schematic diagram.
Among the figure, 1,2 bearing end covers, 3 roller bearings, 4 end caps, 5 terminal boxes, 6 windings of trapping overlap winding, 8 rotor cores, 9 stator cores, 10 stator winding, 11 casings, 12 fan housings, 13 internal bearing covers, 14 fans, 15 ball bearings, 16 rotor, 17 insulating barriers on 7.
Embodiment
In Fig. 1, stator is made up of stator core (9), stator winding (10), casing (11), bearing end cover (2) and internal bearing cover (13); Rotor by axle (1), rotor core (8), on overlap winding (7), the winding of trapping (6), roller bearing (3), ball bearing (15) and fan (14) and form; Rotor is contained on two end caps (4) through bearing (3) (15), and end cap (4) is fixed on casing (11) two ends, so just stator and rotor set is fitted together.The terminal of stator winding (10) causes terminal box.
In Fig. 2,3, have dark type groove (16) on the rotor core (8), the winding of trapping (6) is contained in the inboard of groove (16), on overlap the outside that winding (7) is contained in groove (16), two covers are equipped with insulating barrier (17) between the windings.Trap three coils (6a) of winding (6) (6b) after (6c) number of poles requirement wiring by three-phase, three output U
1, V
1, W
1Short circuit, star center are O
1Three coils (7a) of last cover winding (7) are (7b) after (7c) number of poles requirement wiring by three-phase, three output U
2, V
2, W
2Short circuit, star center are O
2
Be that example is described further with a 15kw motor below:
One. stator: (1) total groove number is 54,8 utmost points, every grade of cross-slot 1-7, two tunnel corner connections.
(2) each coil is 18 circles, and diameter of wire is 2-Φ 12 enamelled wires, insulating barrier 035mm, material DMD+M.
(3) the long 265mm of iron core, D
Outward/ D
In=327/230mm, the silicon steel sheet model is B50A-470.
Two. rotor: (1) total groove number is 36,8 utmost points, every grade of cross-slot 1-5, two road stars connect.
(2) each coil is 12 circles, on to overlap diameter of wire be 2-Φ 13, the diameter of wire of trapping is 2-Φ 135, enamelled wire, insulating barrier 035mm, material DMD+M.
(3) the long 265mm of iron core, D
Outward/ D
In=2291/75mm, the silicon steel sheet model is B50A-470.
Claims (3)
1. high-slip energy-saving three-phase asynchronous motor, mainly comprise stator and rotor two parts, stator is by stator core (9), stator winding (10), casing (11), bearing end cover (2) and internal bearing cover (13) are formed, rotor is by axle (1), the rotor winding, rotor core (8), bearing (3), (15) and fan (14) form, it is characterized in that: above-mentioned rotor winding is made up of winding of independently trapping (6) and last cover winding (7), trap winding (6) and last cover winding (7) all is loaded in the dark type groove (16) that is opened on the rotor core (8), the winding (6) of trapping is contained in the inboard of groove (16), on overlap the outside that winding (7) is contained in groove (16).
2. according to the described high-slip energy-saving three-phase asynchronous motor of claim 1, it is characterized in that: three coils (6a) of the winding of trapping (6) are (6b) after (6c) number of poles requirement wiring by three-phase, three output U
1, V
1, W
1Short circuit, on overlap winding (7) three coils (7a) (7b) after (7c) number of poles requirement wiring by three-phase, three output U
2, V
2, W
2Short circuit.
3. according to the described high-slip energy-saving three-phase asynchronous motor of claim 2, it is characterized in that: the number of turn of the winding of trapping (6) is identical with the number of turn of last cover winding (7), and the wire glass of the winding of trapping (6) should be greater than the wire glass of last cover winding (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03243902 CN2614398Y (en) | 2003-04-04 | 2003-04-04 | High slip ratio energy-saving three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03243902 CN2614398Y (en) | 2003-04-04 | 2003-04-04 | High slip ratio energy-saving three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2614398Y true CN2614398Y (en) | 2004-05-05 |
Family
ID=34251000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03243902 Expired - Fee Related CN2614398Y (en) | 2003-04-04 | 2003-04-04 | High slip ratio energy-saving three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2614398Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720792A (en) * | 2016-03-30 | 2016-06-29 | 江苏磁谷科技股份有限公司 | Magnetic coupling |
-
2003
- 2003-04-04 CN CN 03243902 patent/CN2614398Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720792A (en) * | 2016-03-30 | 2016-06-29 | 江苏磁谷科技股份有限公司 | Magnetic coupling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1375908A (en) | Triphase AC synchronous permanent-magnet motor and generator | |
| CN2614398Y (en) | High slip ratio energy-saving three-phase asynchronous motor | |
| CN101951105A (en) | Modularized permanent magnet synchronous generator | |
| CN201504132U (en) | Rotor structure for switched reluctance motor | |
| CN1858972A (en) | Chain rare-earth permanent magnetic synchronous motor driving device for oil submersible screw pump | |
| CN101320925A (en) | Low-voltage high power multi-branch permanent magnet synchronous motor | |
| CN111478473A (en) | Stator and rotor structure and large-stage direct drive motor comprising same | |
| CN2620415Y (en) | Wind-power asynchronous generator | |
| CN203014625U (en) | Frequency control three-phase AC permanent-magnet synchronous motor | |
| CN206490565U (en) | A kind of Large Copacity double-fed starts low-speed big permasyn morot | |
| CN212063659U (en) | Motor internal structure and large-stage direct drive motor comprising same | |
| CN205070725U (en) | Oil of diving directly drives PMSM , oil pump and oil production device dive | |
| CN216134340U (en) | Driving motor suitable for textile equipment | |
| CN2492972Y (en) | Refitting basic structure of AC motor into DC motor without commutator | |
| CN221103179U (en) | Permanent magnet synchronous motor for oxygenerator | |
| CN201365179Y (en) | Three-winding single-phase induction motor with novel connection | |
| CN1501570A (en) | A flat rare-earth permanent-magnetic brushless DC machine | |
| CN202334211U (en) | Five-pole starting energy-saving type winding motor | |
| CN200959560Y (en) | AC permanent-magnetic claw polarized synchronizing motor | |
| CN1375911A (en) | Single-phase AC permanent-magnet synchronous motor | |
| CN201813292U (en) | Modularized permanent magnet synchronous generator | |
| CN2627715Y (en) | Rare-earth permanent-magnetic synchronous oil-submersible motor | |
| CN1521922A (en) | Electromagnetic speed-reducing wheel hub motor | |
| CN2689579Y (en) | High-efficient AC torque asynchronous motors | |
| CN2465384Y (en) | Double magnetic pole high-efficient generator |
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 |