CN2242539Y - Cage rotor asynchronous electric motor - Google Patents
Cage rotor asynchronous electric motor Download PDFInfo
- Publication number
- CN2242539Y CN2242539Y CN 95216081 CN95216081U CN2242539Y CN 2242539 Y CN2242539 Y CN 2242539Y CN 95216081 CN95216081 CN 95216081 CN 95216081 U CN95216081 U CN 95216081U CN 2242539 Y CN2242539 Y CN 2242539Y
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- rotor
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- utility
- model
- cage
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- Expired - Fee Related
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- 238000004804 winding Methods 0.000 claims abstract description 11
- 238000000819 phase cycle Methods 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to a winding-cage type rotor asynchronous motor. The utility model is composed of a stator machine base, the stator and the rotor of an A part, the stator and the rotor of a B part, a rotating shaft, etc., wherein, the stators of the A part and the B part are fixed on the stator machine base; the rotors of the A part and the B part are fixed on the rotating shaft; the stator windings of the A part and the B part are connected into a star connection method or a triangular connection method; the rotor windings of the A part and the B part are of the star connection method, and the phase sequence of the stator windings and the rotor windings are of reverse connection. The utility model has the advantages of high reliability, high speed regulating efficiency, less investment, convenient installation, convenient maintenance, etc., being suitable for manufacturing the high-voltage winding-cage motors.
Description
The utility model relates to a kind of cage rotor asynchronous motor, belongs to technical field of motors.
The machinery tandem control is a kind of efficient energy-saving device that generally acknowledge countries in the world.The machinery tandem is that slip power is converted into a kind of technological means that mechanical output is used, it is that the wound type asynchronous machine slip ring is received rectifier, slip power is converted into direct current power supplies with DC motor, direct current machine directly mechanically connects together with main asynchronous motor, drives load jointly.In the said apparatus, must use the slip ring mode slip power could be gone to drive DC generator work through over commutation, therefore limit its range of application.In addition, because frequent maintenance issues appears in the existence of carbon brush, reduced the reliability of device.Above-mentioned motor can not use in the environment that be corrosive inflammable and explosive.Deficiency at above technology, the inventor once proposed a kind of brushless electric machine reversal connection cascade speed regulator in Chinese utility model patent, with the existing DC generator in the alternative mechanical cascade speed regulator of wound type asynchronous motor, and two winding type asynchronous machine rotors and rotor are connected, by main rotor lead-out wire and subsidiary engine rotor line reversal connection tandem.The weak point of this patented technology is to connect with the rotor of two wound type asynchronous motors and rotor, is not easy to during use install, safeguards and maintenance, and improve equipment cost.
The objective of the invention is the structure of existing wound type asynchronous motor is made improvements, two wound type asynchronous motors are united two into one, be placed in the support, become a novel asynchronous machine, with simplified structure, be convenient to install and maintenance, and reduce equipment cost.
Content of the present utility model is: the cage rotor asynchronous motor is made up of stator, rotor, out frame and rotating shaft, and stator wherein and rotor respectively are divided into A, B two parts, and A, B portion stator are fixed on the out frame, and A, B portion rotor are fixed in the rotating shaft; A, B portion stator winding are formed star connection or delta connection, and A, B portion rotor winding are star connection, the phase sequence reversal connection.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the stator and rotor winding diagram of the asynchronous machine of the utility model design.
Fig. 3 is the fundamental diagram of this asynchronous machine.
Below in conjunction with accompanying drawing, introduce content of the present utility model in detail.Among Fig. 1, the 1st, A portion stator, the 2nd, A portion rotor, the 3rd, rotating shaft, the 4th, B portion rotor, the 5th, B portion stator, the 6th, out frame.The stator of A, B portion can be formed star connection, also can form delta connection.A, B portion rotor winding are star connection all, and phase sequence is wanted reversal connection, as shown in Figure 3.
Operation principle of the present utility model is as shown in Figure 3: the stator lead A of A portion, B, C connect power supply, and B stator lead a, b, c connect three-phase commutation bridge, rectification bridge joint adjustable resistance.Power turn-on, electric motor starting.A portion rotor output slip power is delivered to B portion rotor, and the principle of wiring is that negative-phase sequence connects as shown in Figure 2.It is opposite with direction of motor rotation that B portion rotor produces rotating magnetic field, acts on B portion stator, and it is consistent with A portion generation torque direction to produce torque direction.The slip power size of control B portion stator just can be carried out speed governing.
Effect of the present utility model is:
(1) reliability: do not have slip ring and carbon brush, minimizing accident and maintenance workload can be used for having anti-The place of quick-fried requirement.
(2) efficient speed adjusting performance: the speed regulating method that was used for wound type asynchronous motor originally, this motor can be used, the rotor series resistance speed of former wound type asynchronous machine, the motor slip power is consumed on resistance entirely, so belong to the poor efficiency mode of speed regulation, and cage asynchronous machine serial-resistance speed-regulation, resistance is connected on B portion stator, consumption be B portion slip power.This part power is to deliver to B portion by the slip power that A portion produces, and wherein big portion becomes B portion mechanical output and is utilized, and therefore remaining slip power consumption belong to efficient mode of speed regulation on resistance.
(3) low investment: the wound type asynchronous machine tandem control is because be the slip power of control rotor, the Capacity Ratio cage-type rotor asynchronous machine frequency control of its speed regulating device, the speed regulating device capacity of control stator gross power is little, and also little around the speed regulating device capacity of the speed regulating device Capacity Ratio wound type asynchronous machine of cage motor, because the power of its control is the slip power of slip power.
(4) good starting characteristic: can accomplish that starting torque is big, starting current is little, has prolonged the life-span of driven equipment, reduces the impact to electrical network.Reduce maintenance load and downtime, reduced the capacity of network transformer and the conductor cross-section of cable.
(5) the cage motor is applicable to below 1500 rev/mins, and tens kilowatts to 2000 kilowatts, the blower fan load of the pumps is applicable to that the oil-field oil pumper load all has average energy-conservation 30% energy-saving effect.
(6) can design production seriation motor and be convenient to the user and select for use, install, safeguard, maintenance all makes things convenient for, for example: a, oil-field oil pumper are around seven kinds of cage dynamo series; B, bifurcation series are around 1-200 kilowatt of cage motor subseries; C, 200-2000 kilowatt high pressure is around cage dynamo series etc.
Claims (1)
1, a kind of cage rotor asynchronous motor, form by stator, rotor, out frame and rotating shaft, it is characterized in that wherein stator and rotor respectively are divided into A, B two parts, A, B portion stator are fixed on the out frame, A, B portion rotor are fixed in the rotating shaft; A, B portion stator winding are formed star connection or delta connection, and A, B portion rotor winding are star connection, the phase sequence reversal connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95216081 CN2242539Y (en) | 1995-07-14 | 1995-07-14 | Cage rotor asynchronous electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95216081 CN2242539Y (en) | 1995-07-14 | 1995-07-14 | Cage rotor asynchronous electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242539Y true CN2242539Y (en) | 1996-12-11 |
Family
ID=33865253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95216081 Expired - Fee Related CN2242539Y (en) | 1995-07-14 | 1995-07-14 | Cage rotor asynchronous electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242539Y (en) |
-
1995
- 1995-07-14 CN CN 95216081 patent/CN2242539Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINAN LUMENG POWER TECHNOLOGY DEVELOPMENT CO., LT Free format text: FORMER OWNER: ZHOU MINGBAO Effective date: 20031219 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20031219 Address after: 250101 room 1016, Qilu Software Park building, Ji'nan hi tech Zone, Shandong Patentee after: Jinan Lumeng Power Science and Technology Development Co. Ltd. Address before: 100084, No. 1001, building No. 1, Tsinghua University, Beijing Patentee before: Zhou Mingbao |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Jinan Lumeng Power Science and Technology Development Co. Ltd. Document name: Notification of Termination of Patent Right |
|
| 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 |