CN201758378U - Speed regulation fan switch magnetic resistance speed regulation electromotor device - Google Patents
Speed regulation fan switch magnetic resistance speed regulation electromotor device Download PDFInfo
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- CN201758378U CN201758378U CN2010201220237U CN201020122023U CN201758378U CN 201758378 U CN201758378 U CN 201758378U CN 2010201220237 U CN2010201220237 U CN 2010201220237U CN 201020122023 U CN201020122023 U CN 201020122023U CN 201758378 U CN201758378 U CN 201758378U
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Abstract
The utility model relates to a speed regulation fan switch magnetic resistance speed regulation electromotor device constituted by a three-phase 6/8 structure external rotor switch magnetic resistance electromotor, a three-phase asymmetric bridge type power converter and an all digital controller with a 51series single chip microcomputer as core. The switch reluctance electromotor stator windings are in the two-pole coil serial connection, and the stator pole can form the NSNSNS polarity under the power-on situation, when the stator is winded into the stator coil. The switch reluctance electromotor adopts the external rotor structure, which can be used to drive the fan directly without the decelerator to transmit the power, thereby the utility model has advantages of realizing the energy-saving operation of the fan in a stepless speed control mode, and having a wide practicability.
Description
Technical field
The utility model relates to a kind of adjustable-speed motor device, especially a kind of direct drive adjustable speed fan magnetic resistance switch speed-adjustable motor device.
Background technology
Current, the fan electromotor drive system is just energy-conservation towards stepless speed regulation, high reliability, digitized direction develop.Research and develop novel realization blower fan stepless speed regulation operation, high reliability, digitized adjustable-speed motor system, become the latest development trend and the important directions of the frontier nature innovation research work of electric drive field.
The fan electromotor drive system of extensive use both at home and abroad is an induction motor at present, can not stepless speed regulation.Blower fan can be realized the stepless speed regulation transmission by speed adjustable DC motor, but the dc motor structure complexity, cost is higher, and is difficult in maintenance, and the life-span is short.Blower fan can be realized the stepless speed regulation transmission by induction motor variable frequency speed regulation system, but system control scheme adopts transform vector control or direct torque control, but realizes transform vector or direct torque control calculation of complex, and its low speed moment is little, low-speed characteristic is not good.
Summary of the invention
The purpose of this utility model is at the problem that exists in the prior art, provide a kind of simple in structure, cost is low, easy to maintenance, long service life, reliability height, realize the direct driven type magnetic resistance switch speed-adjustable motor device of blower fan stepless speed regulation.
The technical scheme that its technical problem that solves the utility model adopts is: adjustable speed fan magnetic resistance switch speed-adjustable motor device is the electromechanical integration motor transmission agent that the total digital controller of core is formed by three-phase 6/8 structure outer rotor switched reluctance motor d, the asymmetric bridge power converter of three-phase and 51 series monolithics.Each of three-phase 6/8 structure outer rotor switched reluctance motor internal stator e is wound with centralized coil on extremely, its coil centerline is mutually two coils of 180 ° and is in series and constitutes a phase winding, and stator poles formed the mode of NSNSNS polarity when the coil winding of three-phase 6/8 structure outer rotor switched reluctance motor internal stator e became coil to switch on simultaneously.Power inverter is provided with six main switches and six fly-wheel diodes, each of the asymmetric bridge power converter of three-phase links to each other with each phase winding of three-phase 6/8 structure outer rotor switched reluctance motor respectively mutually, the break-make of each phase main switch of the asymmetric bridge power converter of 51 series monolithics control three-phase makes power supply switch in proper order to each phase internal stator winding of External Rotor Switched Reluctance Motor through the asymmetric bridge power converter of three-phase.51 series monolithics are that the total digital controller of core also comprises 51 series monolithic chips, drive circuit, protective circuit, A/D change-over circuit, hardware watchdog circuit and clock circuit.Power inverter is provided with three current detectors, and power inverter is every to be provided with a current detector mutually, and the output of each current detector links to each other with the input of protective circuit respectively.Motor is provided with the external rotor position detector, and 6 I/O mouths of the output of external rotor position detector and 51 series monolithics link to each other.Velocity setting links to each other with the A/D change-over circuit; the output of A/D change-over circuit links to each other with 51 series monolithics chip I/O mouth; the input of drive circuit links to each other with pwm signal output I/O mouth with 6 I/O mouths of 51 series monolithics respectively; the output of drive circuit links to each other with the trigger end of the main switch of the asymmetric bridge power converter of three-phase respectively, and the output of protective circuit links to each other with the input of drive circuit.The main switch of power inverter is optional with power MOSFET or IGBT.51 series monolithics are can be provided with outer extension memory on the total digital controller of core as required.51 series monolithics are that the total digital controller of core is provided with buffer circuit as required.
The beneficial effects of the utility model are: adjustable speed fan magnetic resistance switch speed-adjustable motor device is the electromechanical integration motor transmission agent that the total digital controller of core is formed by three-phase 6/8 structure outer rotor switched reluctance motor, the asymmetric bridge power converter of three-phase and 51 series monolithics.The direct transmission blower fan of outer rotor switched magneto resistance speed-regulating motor does not need the decelerator transferring power, can realize blower fan stepless speed regulation energy-saving run.Because switched reluctance motor adopts simple and firm brushless, no winding, the outer-rotor structure of no permanent magnet, supply folk prescription to current excitation by the unipolarity power inverter, can accomplish on the magnetic circuit on each mutually separate and circuit respectively mutually separately, this system has higher operational reliability and fault-tolerant ability.Therefore, be that the direct driven type electric motor system of adjustable speed fan has wide industrialization prospect with the magnetic resistance switch speed-adjustable motor system research and development.
Description of drawings
Fig. 1 is the utility model schematic block circuit diagram.
Fig. 2 is the utility model three-phase 6/8 structure outer rotor switched reluctance motor cross section structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
The utility model adjustable speed fan magnetic resistance switch speed-adjustable motor device, mainly by three-phase 6/8 structure outer rotor switched reluctance motor, the asymmetric bridge power converter of three-phase, and 51 series monolithics be that the total digital controller of core is formed.The rotor r of three-phase 6/8 structure outer rotor switched reluctance motor is brushless, no winding, no permanent magnet structure, the internal stator e winding of three-phase 6/8 structure outer rotor switched reluctance motor d supplies folk prescription to current excitation by the unipolarity power inverter, and the rotor r of motor d is not with the direct transmission blower fan of decelerator.Each is wound with centralized coil on extremely the internal stator e of three-phase 6/8 structure outer rotor switched reluctance motor d, its coil centerline is mutually two coils of 180 ° and is in series and constitutes a phase winding, be that coil " A " and " A " are in series and constitute the A phase winding, coil " B " and " B " the formation B phase winding that is in series; Coil " C " and " C " are in series and constitute the C phase winding; Stator poles formed the mode of NSNSNS polarity when the coil winding of the internal stator e of three-phase 6/8 structure outer rotor switched reluctance motor became coil to switch on simultaneously.The power inverter main circuit topology is the asymmetric bridge-type of three-phase, and power inverter is provided with six main switch S
1, S
2, S
3, S
4, S
5, S
6With six fly-wheel diode VD
1, VD
2, VD
3, VD
4, VD
5, VD
6Each of the asymmetric bridge power converter of three-phase links to each other with each phase winding of three-phase 6/8 structure outer rotor switched reluctance motor respectively mutually.It is the total digital controller of core that controller adopts with 51 series monolithics, with 51 series monolithics is the break-make of each phase main switch of the asymmetric bridge power converter of total digital controller control three-phase of core, and power supply is switched on to each phase stator winding of switched reluctance motor in proper order through the asymmetric bridge power converter of three-phase.Motor is provided with the external rotor position detector, and 6 I/O mouths of the output of external rotor position detector and 51 series monolithics link to each other.Power inverter is provided with three current detector T
1, T
2, T
3, power inverter is every to be provided with a current detector mutually, and the output of each current detector links to each other with the input of protective circuit respectively, and the output of protective circuit links to each other with the input of drive circuit.Be connected with drive circuit, protective circuit, A/D change-over circuit, hardware watchdog circuit and clock circuit on 51 series monolithics respectively.The input of drive circuit links to each other with pwm signal output I/O mouth with 6 I/O mouths of 51 series monolithics respectively; the output of drive circuit links to each other with the trigger end of the main switch of the asymmetric bridge power converter of three-phase respectively; be that b1 links to each other with g1, b2 links to each other with g2, b3 links to each other with g3, b4 links to each other with g4, b5 links to each other with g5, b6 links to each other with g6, the output of protective circuit links to each other with the input of drive circuit.Velocity setting links to each other with the A/D change-over circuit, and the output of A/D change-over circuit links to each other with 51 series monolithics chip I/O mouth.The main switch of power inverter is selected power MOSFET or IGBT for use.Can be provided with outer extension memory on 51 series monolithics as required; 51 series monolithics are provided with buffer circuit, are respectively equipped with buffer circuit between the I/O mouth of the output of external rotor position detector and 51 series monolithic chips as required; Be respectively equipped with buffer circuit between 6 I/O mouths of the input of drive circuit and 51 series monolithic chips as required; Be provided with buffer circuit between the pwm signal of the input of drive circuit and the 51 series monolithic chips output I/O mouth as required; Be provided with buffer circuit between velocity setting and the A/D change-over circuit as required.
Operation principle: detect the external rotor position by the external rotor position detector that is arranged on switched reluctance motor and send signal to 51 series monolithic chips, the signal that 51 series monolithic chips are received according to I/O mouth pin, judge current rotor-position, send the switching angle control signal by 6 I/O mouths, the break-make of each phase main switch of the asymmetric bridge power converter of control three-phase makes power supply switch in proper order to each phase stator winding of switched reluctance motor through the asymmetric bridge power converter of three-phase after drive circuit is isolated amplification.The main switch of power inverter is optional with power MOSFET or IGBT.Send signal with the electric current in each phase stator winding of current detector sense switch reluctance motor and to protective circuit, by protective circuit drive circuit is sent the signal of sealing up a door as required, with the main switch of protection power inverter.Velocity setting links to each other with the A/D change-over circuit, and the output of A/D change-over circuit links to each other with 51 series monolithics chip I/O mouth, is used for the rotational speed setup of system, regulates the duty ratio of pwm signal, thus the rotating speed of the rotating speed of by-pass cock reluctance motor and blower fan.System also is equipped with clock circuit, A/D change-over circuit, hardware watchdog circuit.51 series monolithics are can be provided with outer extension memory on the total digital controller of core as required.Be respectively equipped with buffer circuit between 6 I/O mouths of the output of external rotor position detector and 51 series monolithic chips as required; Be respectively equipped with buffer circuit between 6 I/O mouths of the input 51 series monolithic chips of drive circuit as required; Be provided with buffer circuit between the pwm signal of the input of drive circuit and the 51 series monolithic chips output I/O mouth as required; Be provided with buffer circuit between velocity setting and the A/D change-over circuit as required.
Claims (4)
1. adjustable speed fan magnetic resistance switch speed-adjustable motor device, comprise by three-phase 6/8 structure outer rotor switched reluctance motor (d), asymmetric bridge power converter of three-phase and 51 series monolithics are the total digital controller of core, it is characterized in that: each of the asymmetric bridge power converter of described three-phase links to each other with each phase winding of three-phase 6/8 structure outer rotor switched reluctance motor (d) respectively mutually, each of the internal stator (e) of three-phase 6/8 structure outer rotor switched reluctance motor (d) is wound with centralized coil on extremely, and its coil centerline is mutually two coils of 180 ° and is in series and constitutes a phase winding; Switched reluctance motor (d) is provided with the external rotor position detector; the output of external rotor position detector links to each other with last 6 I/O mouths of 51 series monolithics; be connected with drive circuit on 51 series monolithics respectively; protective circuit; the A/D change-over circuit; hardware watchdog circuit and clock circuit; the asymmetric bridge power converter of three-phase is provided with three current detectors; the output of three current detectors links to each other with the input of protective circuit; speed setter links to each other with the A/D change-over circuit; the output of A/D change-over circuit links to each other with 51 series monolithics chip I/O mouth; the input of drive circuit links to each other with pwm signal output I/O mouth with following 6 I/O mouths of 51 series monolithics respectively; the output of drive circuit links to each other with the trigger end of the main switch of the asymmetric bridge power converter of three-phase respectively, and the output of protective circuit links to each other with the input of drive circuit.
2. adjustable speed fan magnetic resistance switch speed-adjustable motor device according to claim 1 is characterized in that: the main switch model of the asymmetric bridge power converter of described three-phase is MOSFET or IGBT.
3. adjustable speed fan magnetic resistance switch speed-adjustable motor device according to claim 1 is characterized in that: described 51 series monolithics are provided with outer extension memory.
4. adjustable speed fan magnetic resistance switch speed-adjustable motor device according to claim 1 is characterized in that: be respectively equipped with buffer circuit between the I/O mouth of the output of described external rotor position detector and 51 series monolithic chips; Be respectively equipped with buffer circuit between 6 I/O mouths of the input of drive circuit and 51 series monolithic chips; Be provided with buffer circuit between the pwm signal output I/O mouth of the input of drive circuit and 51 series monolithic chips; Be provided with buffer circuit between velocity setting and the A/D change-over circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201220237U CN201758378U (en) | 2010-03-03 | 2010-03-03 | Speed regulation fan switch magnetic resistance speed regulation electromotor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201220237U CN201758378U (en) | 2010-03-03 | 2010-03-03 | Speed regulation fan switch magnetic resistance speed regulation electromotor device |
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| Publication Number | Publication Date |
|---|---|
| CN201758378U true CN201758378U (en) | 2011-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201220237U Expired - Fee Related CN201758378U (en) | 2010-03-03 | 2010-03-03 | Speed regulation fan switch magnetic resistance speed regulation electromotor device |
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| CN (1) | CN201758378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184375A (en) * | 2013-05-20 | 2014-12-03 | 捷和电机制品(深圳)有限公司 | Switched reluctance motor control device and control method thereof |
-
2010
- 2010-03-03 CN CN2010201220237U patent/CN201758378U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184375A (en) * | 2013-05-20 | 2014-12-03 | 捷和电机制品(深圳)有限公司 | Switched reluctance motor control device and control method thereof |
| CN104184375B (en) * | 2013-05-20 | 2017-07-14 | 捷和电机制品(深圳)有限公司 | Control device of switched reluctance motor and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110309 Termination date: 20120303 |