CN200983566Y - Power square wave lanthanon permanent synchronization electromotor unit - Google Patents
Power square wave lanthanon permanent synchronization electromotor unit Download PDFInfo
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- CN200983566Y CN200983566Y CNU2006201209778U CN200620120977U CN200983566Y CN 200983566 Y CN200983566 Y CN 200983566Y CN U2006201209778 U CNU2006201209778 U CN U2006201209778U CN 200620120977 U CN200620120977 U CN 200620120977U CN 200983566 Y CN200983566 Y CN 200983566Y
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- rare earth
- synchronous motor
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Abstract
The utility model discloses a power-type rare earth synchronous motor unit, comprising a rare earth permanent magnet motor in square wave-type and a digital driving controller, wherein the digital driving controller comprises a switch main circuit, a drive circuit and a control circuit, the switch main circuit receives driving signals from the control circuit and drives the rare earth permanent magnet motor in square wave-type to run. The control circuit receives sampling signals from a sample circuit in the switch main circuit, correspondingly produces and exports control signals to the switch main circuit, receives positional information received by a sensor assembly arranged at the rear end of the rare earth permanent magnet motor in square wave-type, correspondingly produces and exports control signals to the drive circuit, achieves electronic commutation, meanwhile receives an outer braking instruction and produces brake signals to a braking circuit. The utility model has the advantages that the driver uses digital control technology and achieves the goal of optimally driving control to motors, the bulk of the motor is small, the power density and integrated reliability are high, and the motor has no metallic brush and no electromagnetic interference to the environment.
Description
Technical field
The utility model belongs to a kind of rare-earth permanent-magnet synchronous motor unit.
Background technology
DC motor speed-regulating superior performance of the prior art, low-speed performance is good, operate steadily, but it has the mechanical type commutator, and brush needs often to safeguard, and generation commutation spark in service, causes radio interference.AC frequency conversion of the prior art system, simple in structure, reliable operation, but its motor volume is huge.
The utility model content
A purpose of the present utility model is to solve weak point of the prior art, provides a kind of employing electronic commutation energy-efficient, and running is steady, stepless speed regulation wide ranges, the power-type rare earth synchronous motor that the low-speed machinery characteristic is good.
For achieving the above object, a kind of power-type rare earth synchronous motor unit that the utility model provides comprises square wave formula rare-earth permanent-magnet electric machine and digital driving governor, wherein, digital driving governor comprises switch main circuit, drive circuit and control circuit, main switch circuit receives the drive signal from control circuit, drives the action of square wave formula rare-earth permanent-magnet electric machine; Control circuit receives the sampled signal of sample circuit from the switch main circuit, corresponding generation also outputs control signals in the switch main circuit, reception is positioned at the positional information of the sensor cluster reception of square wave formula rare-earth permanent-magnet electric machine rear end, and corresponding generation and output control signals to drive circuit, realize electronic commutation, receive outside braking instruction simultaneously, produce brake signal and give the brake circuit.
The beneficial effects of the utility model are that driver adopts digital control technology, realize the optimum drive controlling to motor, and the volume of motor is little, the power density height, and the high motor brushless of global reliability does not have electromagnetism in disturbing to environment.
Description of drawings
Fig. 1 always schemes for this rare-earth permanent-magnet synchronous motor cellular system
Fig. 2 is the structure chart of rare-earth permanent-magnet synchronous motor
Fig. 3 is the cutaway view of Fig. 2 along the A-A line
Fig. 4 is a rare-earth permanent-magnet synchronous motor total digitalization driving governor exploded view
Embodiment
With reference to figure 1, the utility model comprises square wave formula rare-earth permanent-magnet electric machine and digital driving governor two parts.
Fig. 2 is a kind of power-type rare earth synchronous motor structural representation, and Fig. 3 is its cutaway view, and with reference to Fig. 2,3, this rare-earth electric motor is an energy-saving efficient motor, and power is by tens watts to tens kilowatts.Main component of electrical machine comprises: casing 1, opening dovetail groove stator 2, coil windings 3, rotor 4, etc. radius tile-shaped magnet steel 5, rotor overcoat 6, main shaft 7, sensor cluster 8, bearing 9.Main shaft 7 presses rotor punching and laminates in the middle of the body 4, rotor laminates radius tile-shaped magnet steels 5 such as even numbered blocks is arranged on body 4 cylindricals, magnet steel 5 inner arcs are close to or partly are embedded in rotor and laminate on the cylindrical of body 4, magnet steel is made with the high rare-earth Nd-Fe-B material of temperature stability, has the magnetic energy product height, the characteristics of stable performance.Tile-shaped magnet steel 5 has been formed the permanent magnetism rotor with rotor 4.In order to prevent that magnet steel from coming off when motor runs up, rotor overcoat 6 is bumped in the permanent magnetism rotor, and the head of rotor overcoat 6 has the fan blade that is evenly distributed, and just can accelerate the heat radiation of motor when motor rotation. the rotor of the motor that above several parts are just formed.
In addition, casing 1 is to be made by aluminium alloy, and the radiating ribs that is evenly distributed is also arranged around the shell.Opening dovetail groove stator 2 is overrided to form by low-loss cold-reduced silicon sheet, presses into casing 1, and coil windings 3 is bumped in the opening dovetail groove, adopts flume structure and fractional slot winding when stator laminates, and it is more steady to get into smooth, and noise is low.Bearing 9 is pressed in the rear end cap by anchor clamps, again the rear end of rotor is pressed in the middle of the bearing of rear end cap, rotor to be put into stator, by anchor clamps front end housing is pressed onto the position then. transducer is to be made of sensor cluster 8, and transducer branch satisfies 360 ± 120 ° of space angle P α=K, wherein, P is a number of pole-pairs, and α is branch's angle, and K is a natural number, it is positioned at motor rear end, comes the sensing rotor position by Hall element and multi-pole magnet-ring (the magnet ring number of poles is identical with the number of poles of magnet rotor).
Fig. 4 is a rare-earth permanent-magnet synchronous motor total digitalization driving governor exploded view.Referring to Fig. 4, described driving governor comprises rectification circuit 21: single-phase rectification bridge or three-phase commutation bridge, filter circuit 22; buffer circuit 23; brake circuit 24, inverter circuit 25, rare-earth permanent-magnet synchronous motor 26; sampling and protective circuit 27; drive circuit 28, position detecting circuit 29, full-digital control circuit 30; user interface 31 shows and guidance panel 32.
Rare-earth permanent-magnet synchronous motor total digitalization driving governor is made up of switch main circuit, drive circuit and control circuit, below divides three parts to be illustrated to the operation principle of driving governor:
The switch main circuit is by the rectification circuit among the figure 21: single-phase rectification bridge or three-phase commutation bridge, and filter circuit 22, buffer circuit 23, brake circuit 24, inverter circuit 25 is formed.
Full-digital control circuit 30 is that MCU is the control centre that rare earth permanent magnet brushless direct current motor normally moved and realized its various functions; this MCU has embedded middle fracture; 10bitA/DC; FLASH; the SPI interface; peripheral hardware in the sheet that is exclusively used in permanent magnet synchronous motor control is arranged, can select powers such as mode sensor and no mode sensor. the position detection signal that full-digital control circuit 30 reception external control signals and position detecting circuit 29 are sent here; and produce 6 road PWM modulation signals and sampling and protective circuit 27; user interface 31; show and guidance panel 32 carries out giving drive circuit 28 after the logic synthesis and makes inverter circuit 25 work and drive permanent magnet synchronous motor 26.Full-digital control circuit 30 also motor is carried out speed closed loop and current closed-loop is regulated, and makes system have good dynamic and static characteristic.The signal of sending into full-digital control circuit 30 by sampling and protective circuit 27 realize short circuit, overcurrent, overvoltage, overheated, etc. failure protection function.
Demonstration and guidance panel 32 comprise that LED (or LCD) display panel carries out rotating speed, error code, demonstration moves, stops, just changeing, reverse.Indicator light: power supply indication, mistake indication, just/counter-rotating indication, move/stop indication.Operation push-button: move, stop, just changeing, counter-rotating, acceleration, deceleration, crawl.
Being the utility model preferred embodiment only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to technology category of the present utility model.
Claims (9)
1. power-type rare earth synchronous motor unit, it is characterized in that: comprise square wave formula rare-earth permanent-magnet electric machine and digital driving governor, wherein, digital driving governor comprises switch main circuit, drive circuit and control circuit, main switch circuit receives the drive signal from drive circuit, drives the action of square wave formula rare-earth permanent-magnet electric machine; Control circuit receives the sampled signal of sample circuit from the switch main circuit, and corresponding generation also outputs control signals in the switch main circuit realizing overcurrent, overvoltage, under-voltage, and input control signal to the brake circuit to realize braking function.The positional information that reception is produced by the sensor cluster that is positioned at square wave formula rare-earth permanent-magnet electric machine end, and corresponding generation and output control signals to drive circuit are to realize electronic commutation.
2. power-type rare earth synchronous motor according to claim 1 unit, it is characterized in that: motor comprises: casing, opening dovetail groove stator, coil windings, rotor, etc. radius tile-shaped magnet steel, rotor overcoat, main shaft, sensor cluster, bearing.Main shaft presses rotor punching and laminates in the middle of the body, rotor laminates radius tile-shaped magnet steels (5) such as even numbered blocks is arranged on body (4) cylindrical, magnet steel (5) inner arc is close to or partly is embedded in rotor and laminates on the cylindrical of body (4), tile-shaped magnet steel (5) has been combined into the permanent magnetism rotor with rotor (4), rotor overcoat (6) is bumped in the permanent magnetism rotor, the head of rotor overcoat (6) has the fan blade that is evenly distributed, more than the rotor of the motor just formed of several parts, casing (1) is provided with the radiating groove that is evenly distributed all around, coil windings (3) is bumped in the opening dovetail groove, when laminating, adopts by stator flume structure and winding fractional slot winding, bearing is pressed in the rear end cap, the rear end of rotor is pressed in the middle of the bearing of rear end cap, and transducer is to be made of sensor cluster (8), and it is positioned at motor rear end.
3. power-type rare earth synchronous motor according to claim 2 unit, it is characterized in that: transducer branch satisfies 360 ± 120 ° of space angle P α=K, and wherein, P is a number of pole-pairs, and α is branch's angle, and K is a natural number.
4. according to claim 2 or 3 described power-type rare earth synchronous motor unit, it is characterized in that: sensor cluster is Hall element and multi-pole magnet-ring.
5. according to any described power-type rare earth synchronous motor unit in the claim 1 to 3, it is characterized in that: the switch main circuit is by rectification circuit (21), filter circuit (22), buffer circuit (23), brake circuit (24), inverter circuit (25) and sampling and protective circuit (27) are formed; Rectification circuit (21) is converted to DC power supply with single-phase or three-phase alternating-current supply and sends into filter circuit (22) and carry out low-pass filtering, form low internal resistance hardware features direct voltage source, simultaneously with rare-earth permanent-magnet synchronous motor (26) winding inductive load exchange reactive power, buffer circuit (23) is connected in the rear end of filter circuit (22), reduce the peak voltage that switching tube bears, improve the reliability of main circuit, buffer circuit (23) is located at each brachium pontis limit respectively, brake circuit (24) is by brake resistance R 2, diode D2, insulated gate bipolar triode (T1) carries out dynamic braking common the composition, its control signal is provided by full-digital control circuit (30), inverter circuit (25) is formed with field effect transistor when small-power, high-power can be by discrete insulated gate bipolar triode, the six directions one insulated gate bipolar triode, seven unification insulated gate bipolar triodes or intelligent object are formed.
6. power-type rare earth synchronous motor according to claim 5 unit is characterized in that: rectification circuit (21) is single-phase rectification bridge or three-phase commutation bridge.
7. power-type rare earth synchronous motor according to claim 5 unit, it is characterized in that: buffer circuit (23) is for to use holistic buffer circuit at the direct current source.
8. power-type rare earth synchronous motor according to claim 5 unit, it is characterized in that: drive circuit (28) is that the signal with full-digital control circuit (30) output carries out power amplification, and to inverter circuit (25) provide make its full close lead can and the drive signal of reliable turn-off.
9. power-type rare earth synchronous motor according to claim 5 unit; it is characterized in that: full-digital control circuit (30) has embedded middle fracture; ten analog to digital converters; flash memory; serial parallel interface, full-digital control circuit (30) receive the position detection signal that external control signal and position detecting circuit (29) send here and produce six road PWM modulation signals carries out giving drive circuit (28) after the logic synthesis with sampling and protective circuit (27) and makes inverter circuit (25) work and driving ripple formula permanent magnet synchronous motor (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201209778U CN200983566Y (en) | 2006-09-22 | 2006-09-22 | Power square wave lanthanon permanent synchronization electromotor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201209778U CN200983566Y (en) | 2006-09-22 | 2006-09-22 | Power square wave lanthanon permanent synchronization electromotor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200983566Y true CN200983566Y (en) | 2007-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201209778U Expired - Fee Related CN200983566Y (en) | 2006-09-22 | 2006-09-22 | Power square wave lanthanon permanent synchronization electromotor unit |
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| CN (1) | CN200983566Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441636A (en) * | 2013-09-24 | 2013-12-11 | 余勋杰 | Brushless direct-current motor |
| CN104135196A (en) * | 2014-08-07 | 2014-11-05 | 成都信鑫信息技术有限公司 | Permanent magnet motor AC servo control system |
| CN105656297A (en) * | 2016-03-14 | 2016-06-08 | 广东明阳龙源电力电子有限公司 | Discharging method of direct driving type wind turbine generator system converter direct-current bus |
-
2006
- 2006-09-22 CN CNU2006201209778U patent/CN200983566Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441636A (en) * | 2013-09-24 | 2013-12-11 | 余勋杰 | Brushless direct-current motor |
| CN103441636B (en) * | 2013-09-24 | 2016-06-08 | 余勋杰 | A kind of brshless DC motor |
| CN104135196A (en) * | 2014-08-07 | 2014-11-05 | 成都信鑫信息技术有限公司 | Permanent magnet motor AC servo control system |
| CN105656297A (en) * | 2016-03-14 | 2016-06-08 | 广东明阳龙源电力电子有限公司 | Discharging method of direct driving type wind turbine generator system converter direct-current bus |
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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: SHENZHEN CITY HONGJIA ELECTRICAL EQUIPMENT CO., LT Free format text: FORMER OWNER: ZHENG YUNFENG Effective date: 20090925 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090925 Address after: Guangdong city of Shenzhen province Baoan Xixiang Baoyuan road Huafeng Industrial Park Baosheng B Building 2 floor, zip code: 518106 Patentee after: Shenzhen Honcar Electromechanical Equipment Co., Ltd. Address before: Guangdong city of Shenzhen province Baoan Xixiang Baoyuan road Huafeng Industrial Park Baosheng B Building 2 floor, zip code: 518106 Patentee before: Zheng Yunfeng |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20120922 |